8332 lines
251 KiB
JavaScript
8332 lines
251 KiB
JavaScript
/*
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* svgcanvas.js
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*
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* Licensed under the Apache License, Version 2
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*
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* Copyright(c) 2010 Alexis Deveria
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* Copyright(c) 2010 Pavol Rusnak
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* Copyright(c) 2010 Jeff Schiller
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*
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*/
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if(!window.console) {
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window.console = {};
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window.console.log = function(str) {};
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window.console.dir = function(str) {};
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}
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if(window.opera) {
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window.console.log = function(str) {opera.postError(str);};
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window.console.dir = function(str) {};
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}
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(function() {
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// This fixes $(...).attr() to work as expected with SVG elements.
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// Does not currently use *AttributeNS() since we rarely need that.
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// See http://api.jquery.com/attr/ for basic documentation of .attr()
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// Additional functionality:
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// - When getting attributes, a string that's a number is return as type number.
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// - If an array is supplied as first parameter, multiple values are returned
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// as an object with values for each given attributes
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var proxied = jQuery.fn.attr, svgns = "http://www.w3.org/2000/svg";
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jQuery.fn.attr = function(key, value) {
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var len = this.length;
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if(!len) return this;
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for(var i=0; i<len; i++) {
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var elem = this[i];
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// set/get SVG attribute
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if(elem.namespaceURI === svgns) {
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// Setting attribute
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if(value !== undefined) {
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elem.setAttribute(key, value);
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} else if($.isArray(key)) {
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// Getting attributes from array
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var j = key.length, obj = {};
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while(j--) {
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var aname = key[j];
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var attr = elem.getAttribute(aname);
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// This returns a number when appropriate
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if(attr || attr === "0") {
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attr = isNaN(attr)?attr:attr-0;
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}
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obj[aname] = attr;
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}
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return obj;
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} else if(typeof key === "object") {
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// Setting attributes form object
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for(v in key) {
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elem.setAttribute(v, key[v]);
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}
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// Getting attribute
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} else {
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var attr = elem.getAttribute(key);
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if(attr || attr === "0") {
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attr = isNaN(attr)?attr:attr-0;
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}
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return attr;
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}
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} else {
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return proxied.apply(this, arguments);
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}
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}
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return this;
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};
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}());
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function SvgCanvas(container)
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{
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var isOpera = !!window.opera,
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isWebkit = navigator.userAgent.indexOf("AppleWebKit") != -1,
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support = {},
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// this defines which elements and attributes that we support
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svgWhiteList = {
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// SVG Elements
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"a": ["class", "clip-path", "clip-rule", "fill", "fill-opacity", "fill-rule", "filter", "id", "mask", "opacity", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "transform", "xlink:href", "xlink:title"],
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"circle": ["class", "clip-path", "clip-rule", "cx", "cy", "fill", "fill-opacity", "fill-rule", "filter", "id", "mask", "opacity", "r", "requiredFeatures", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "transform"],
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"clipPath": ["class", "clipPathUnits", "id"],
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"defs": [],
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"desc": [],
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"ellipse": ["class", "clip-path", "clip-rule", "cx", "cy", "fill", "fill-opacity", "fill-rule", "filter", "id", "mask", "opacity", "requiredFeatures", "rx", "ry", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "transform"],
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"feGaussianBlur": ["class", "id", "requiredFeatures", "stdDeviation"],
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"filter": ["class", "filterRes", "filterUnits", "height", "id", "primitiveUnits", "requiredFeatures", "width", "x", "xlink:href", "y"],
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"foreignObject": ["class", "font-size", "height", "id", "opacity", "requiredFeatures", "style", "transform", "width", "x", "y"],
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"g": ["class", "clip-path", "clip-rule", "id", "display", "fill", "fill-opacity", "fill-rule", "filter", "mask", "opacity", "requiredFeatures", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "transform"],
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"image": ["class", "clip-path", "clip-rule", "filter", "height", "id", "mask", "opacity", "requiredFeatures", "style", "systemLanguage", "transform", "width", "x", "xlink:href", "xlink:title", "y"],
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"line": ["class", "clip-path", "clip-rule", "fill", "fill-opacity", "fill-rule", "filter", "id", "marker-end", "marker-mid", "marker-start", "mask", "opacity", "requiredFeatures", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "transform", "x1", "x2", "y1", "y2"],
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"linearGradient": ["class", "id", "gradientTransform", "gradientUnits", "requiredFeatures", "spreadMethod", "systemLanguage", "x1", "x2", "xlink:href", "y1", "y2"],
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"marker": ["id", "class", "markerHeight", "markerUnits", "markerWidth", "orient", "preserveAspectRatio", "refX", "refY", "systemLanguage", "viewBox"],
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"mask": ["class", "height", "id", "maskContentUnits", "maskUnits", "width", "x", "y"],
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"metadata": ["class", "id"],
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"path": ["class", "clip-path", "clip-rule", "d", "fill", "fill-opacity", "fill-rule", "filter", "id", "marker-end", "marker-mid", "marker-start", "mask", "opacity", "requiredFeatures", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "transform"],
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"pattern": ["class", "height", "id", "patternContentUnits", "patternTransform", "patternUnits", "requiredFeatures", "style", "systemLanguage", "width", "x", "xlink:href", "y"],
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"polygon": ["class", "clip-path", "clip-rule", "id", "fill", "fill-opacity", "fill-rule", "filter", "id", "class", "marker-end", "marker-mid", "marker-start", "mask", "opacity", "points", "requiredFeatures", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "transform"],
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"polyline": ["class", "clip-path", "clip-rule", "id", "fill", "fill-opacity", "fill-rule", "filter", "marker-end", "marker-mid", "marker-start", "mask", "opacity", "points", "requiredFeatures", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "transform"],
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"radialGradient": ["class", "cx", "cy", "fx", "fy", "gradientTransform", "gradientUnits", "id", "r", "requiredFeatures", "spreadMethod", "systemLanguage", "xlink:href"],
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"rect": ["class", "clip-path", "clip-rule", "fill", "fill-opacity", "fill-rule", "filter", "height", "id", "mask", "opacity", "requiredFeatures", "rx", "ry", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "transform", "width", "x", "y"],
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"stop": ["class", "id", "offset", "requiredFeatures", "stop-color", "stop-opacity", "style", "systemLanguage"],
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"svg": ["class", "clip-path", "clip-rule", "filter", "id", "height", "mask", "preserveAspectRatio", "requiredFeatures", "style", "systemLanguage", "viewBox", "width", "x", "xmlns", "xmlns:se", "xmlns:xlink", "y"],
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"switch": ["class", "id", "requiredFeatures", "systemLanguage"],
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"symbol": ["class", "fill", "fill-opacity", "fill-rule", "filter", "font-family", "font-size", "font-style", "font-weight", "id", "opacity", "preserveAspectRatio", "requiredFeatures", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "transform", "viewBox"],
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"text": ["class", "clip-path", "clip-rule", "fill", "fill-opacity", "fill-rule", "filter", "font-family", "font-size", "font-style", "font-weight", "id", "mask", "opacity", "requiredFeatures", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "text-anchor", "transform", "x", "xml:space", "y"],
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"textPath": ["class", "id", "method", "requiredFeatures", "spacing", "startOffset", "style", "systemLanguage", "transform", "xlink:href"],
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"title": [],
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"tspan": ["class", "clip-path", "clip-rule", "dx", "dy", "fill", "fill-opacity", "fill-rule", "filter", "font-family", "font-size", "font-style", "font-weight", "id", "mask", "opacity", "requiredFeatures", "rotate", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "systemLanguage", "text-anchor", "textLength", "transform", "x", "xml:space", "y"],
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"use": ["class", "clip-path", "clip-rule", "fill", "fill-opacity", "fill-rule", "filter", "height", "id", "mask", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "style", "transform", "width", "x", "xlink:href", "y"],
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// MathML Elements
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"annotation": ["encoding"],
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"annotation-xml": ["encoding"],
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"maction": ["actiontype", "other", "selection"],
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"math": ["class", "id", "display", "xmlns"],
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"merror": [],
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"mfrac": ["linethickness"],
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"mi": ["mathvariant"],
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"mmultiscripts": [],
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"mn": [],
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"mo": ["fence", "lspace", "maxsize", "minsize", "rspace", "stretchy"],
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"mover": [],
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"mpadded": ["lspace", "width"],
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"mphantom": [],
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"mprescripts": [],
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"mroot": [],
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"mrow": ["xlink:href", "xlink:type", "xmlns:xlink"],
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"mspace": ["depth", "height", "width"],
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"msqrt": [],
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"mstyle": ["displaystyle", "mathbackground", "mathcolor", "mathvariant", "scriptlevel"],
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"msub": [],
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"msubsup": [],
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"msup": [],
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"mtable": ["align", "columnalign", "columnlines", "columnspacing", "displaystyle", "equalcolumns", "equalrows", "frame", "rowalign", "rowlines", "rowspacing", "width"],
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"mtd": ["columnalign", "columnspan", "rowalign", "rowspan"],
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"mtext": [],
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"mtr": ["columnalign", "rowalign"],
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"munder": [],
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"munderover": [],
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"none": [],
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"semantics": []
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},
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// console.log('Start profiling')
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// setTimeout(function() {
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// canvas.addToSelection(canvas.getVisibleElements());
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// console.log('Stop profiling')
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// },3000);
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uiStrings = {
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"pathNodeTooltip":"Drag node to move it. Double-click node to change segment type",
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"pathCtrlPtTooltip":"Drag control point to adjust curve properties"
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},
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toXml = function(str) {
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return $('<p/>').text(str).html();
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},
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fromXml = function(str) {
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return $('<p/>').html(str).text();
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};
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var unit_types = {'em':0,'ex':0,'px':1,'cm':35.43307,'mm':3.543307,'in':90,'pt':1.25,'pc':15,'%':0};
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// These command objects are used for the Undo/Redo stack
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// attrs contains the values that the attributes had before the change
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function ChangeElementCommand(elem, attrs, text) {
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this.elem = elem;
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this.text = text ? ("Change " + elem.tagName + " " + text) : ("Change " + elem.tagName);
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this.newValues = {};
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this.oldValues = attrs;
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for (var attr in attrs) {
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if (attr == "#text") this.newValues[attr] = elem.textContent;
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else this.newValues[attr] = elem.getAttribute(attr);
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}
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this.apply = function() {
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var bChangedTransform = false;
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for(var attr in this.newValues ) {
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if (this.newValues[attr]) {
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if (attr == "#text") this.elem.textContent = this.newValues[attr];
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else this.elem.setAttribute(attr, this.newValues[attr]);
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}
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else {
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if (attr == "#text") this.elem.textContent = "";
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else {
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this.elem.setAttribute(attr, "");
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this.elem.removeAttribute(attr);
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}
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}
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if (attr == "transform") { bChangedTransform = true; }
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}
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// relocate rotational transform, if necessary
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if(!bChangedTransform) {
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var angle = canvas.getRotationAngle(elem);
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if (angle) {
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var bbox = elem.getBBox();
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var cx = bbox.x + bbox.width/2,
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cy = bbox.y + bbox.height/2;
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var rotate = ["rotate(", angle, " ", cx, ",", cy, ")"].join('');
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if (rotate != elem.getAttribute("transform")) {
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elem.setAttribute("transform", rotate);
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}
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}
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}
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// if we are changing layer names, re-identify all layers
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if (this.elem.tagName == "title" && this.elem.parentNode.parentNode == svgcontent) {
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identifyLayers();
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}
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return true;
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};
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this.unapply = function() {
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var bChangedTransform = false;
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for(var attr in this.oldValues ) {
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if (this.oldValues[attr]) {
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if (attr == "#text") this.elem.textContent = this.oldValues[attr];
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else this.elem.setAttribute(attr, this.oldValues[attr]);
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}
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else {
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if (attr == "#text") this.elem.textContent = "";
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else this.elem.removeAttribute(attr);
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}
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if (attr == "transform") { bChangedTransform = true; }
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}
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// relocate rotational transform, if necessary
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if(!bChangedTransform) {
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var angle = canvas.getRotationAngle(elem);
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if (angle) {
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var bbox = elem.getBBox();
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var cx = bbox.x + bbox.width/2,
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cy = bbox.y + bbox.height/2;
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var rotate = ["rotate(", angle, " ", cx, ",", cy, ")"].join('');
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if (rotate != elem.getAttribute("transform")) {
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elem.setAttribute("transform", rotate);
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}
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}
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}
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// if we are changing layer names, re-identify all layers
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if (this.elem.tagName == "title" && this.elem.parentNode.parentNode == svgcontent) {
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identifyLayers();
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}
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return true;
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};
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this.elements = function() { return [this.elem]; }
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}
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function InsertElementCommand(elem, text) {
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this.elem = elem;
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this.text = text || ("Create " + elem.tagName);
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this.parent = elem.parentNode;
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this.apply = function() {
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this.elem = this.parent.insertBefore(this.elem, this.elem.nextSibling);
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if (this.parent == svgcontent) {
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identifyLayers();
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}
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};
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this.unapply = function() {
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this.parent = this.elem.parentNode;
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this.elem = this.elem.parentNode.removeChild(this.elem);
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if (this.parent == svgcontent) {
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identifyLayers();
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}
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};
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this.elements = function() { return [this.elem]; };
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}
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// this is created for an element that has or will be removed from the DOM
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// (creating this object does not remove the element from the DOM itself)
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function RemoveElementCommand(elem, parent, text) {
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this.elem = elem;
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this.text = text || ("Delete " + elem.tagName);
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this.parent = parent;
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this.apply = function() {
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this.parent = this.elem.parentNode;
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this.elem = this.parent.removeChild(this.elem);
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if (this.parent == svgcontent) {
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identifyLayers();
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}
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};
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this.unapply = function() {
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this.elem = this.parent.insertBefore(this.elem, this.elem.nextSibling);
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if (this.parent == svgcontent) {
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identifyLayers();
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}
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};
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this.elements = function() { return [this.elem]; };
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// special hack for webkit: remove this element's entry in the svgTransformLists map
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if (svgTransformLists[elem.id]) {
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delete svgTransformLists[elem.id];
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}
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}
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function MoveElementCommand(elem, oldNextSibling, oldParent, text) {
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this.elem = elem;
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this.text = text ? ("Move " + elem.tagName + " to " + text) : ("Move " + elem.tagName);
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this.oldNextSibling = oldNextSibling;
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this.oldParent = oldParent;
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this.newNextSibling = elem.nextSibling;
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this.newParent = elem.parentNode;
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this.apply = function() {
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this.elem = this.newParent.insertBefore(this.elem, this.newNextSibling);
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if (this.newParent == svgcontent) {
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identifyLayers();
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}
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};
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this.unapply = function() {
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this.elem = this.oldParent.insertBefore(this.elem, this.oldNextSibling);
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if (this.oldParent == svgcontent) {
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identifyLayers();
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}
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};
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this.elements = function() { return [this.elem]; };
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}
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// TODO: create a 'typing' command object that tracks changes in text
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// if a new Typing command is created and the top command on the stack is also a Typing
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// and they both affect the same element, then collapse the two commands into one
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// this command object acts an arbitrary number of subcommands
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function BatchCommand(text) {
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this.text = text || "Batch Command";
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this.stack = [];
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this.apply = function() {
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var len = this.stack.length;
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for (var i = 0; i < len; ++i) {
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this.stack[i].apply();
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}
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};
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this.unapply = function() {
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for (var i = this.stack.length-1; i >= 0; i--) {
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this.stack[i].unapply();
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}
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};
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this.elements = function() {
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// iterate through all our subcommands and find all the elements we are changing
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var elems = [];
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var cmd = this.stack.length;
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while (cmd--) {
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var thisElems = this.stack[cmd].elements();
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var elem = thisElems.length;
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while (elem--) {
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if (elems.indexOf(thisElems[elem]) == -1) elems.push(thisElems[elem]);
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}
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}
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return elems;
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};
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this.addSubCommand = function(cmd) { this.stack.push(cmd); };
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this.isEmpty = function() { return this.stack.length == 0; };
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}
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// private members
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// **************************************************************************************
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function Selector(id, elem) {
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// this is the selector's unique number
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this.id = id;
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// this holds a reference to the element for which this selector is being used
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this.selectedElement = elem;
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// this is a flag used internally to track whether the selector is being used or not
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this.locked = true;
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// this function is used to reset the id and element that the selector is attached to
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this.reset = function(e, update) {
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this.locked = true;
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this.selectedElement = e;
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this.resize();
|
|
this.selectorGroup.setAttribute("display", "inline");
|
|
};
|
|
|
|
// this holds a reference to the <g> element that holds all visual elements of the selector
|
|
this.selectorGroup = addSvgElementFromJson({ "element": "g",
|
|
"attr": {"id": ("selectorGroup"+this.id)}
|
|
});
|
|
|
|
// this holds a reference to the path rect
|
|
this.selectorRect = this.selectorGroup.appendChild( addSvgElementFromJson({
|
|
"element": "path",
|
|
"attr": {
|
|
"id": ("selectedBox"+this.id),
|
|
"fill": "none",
|
|
"stroke": "#22C",
|
|
"stroke-width": "1",
|
|
"stroke-dasharray": "5,5",
|
|
// need to specify this so that the rect is not selectable
|
|
"style": "pointer-events:none"
|
|
}
|
|
}) );
|
|
|
|
// this holds a reference to the grip elements for this selector
|
|
this.selectorGrips = { "nw":null,
|
|
"n":null,
|
|
"ne":null,
|
|
"e":null,
|
|
"se":null,
|
|
"s":null,
|
|
"sw":null,
|
|
"w":null
|
|
};
|
|
this.rotateGripConnector = this.selectorGroup.appendChild( addSvgElementFromJson({
|
|
"element": "line",
|
|
"attr": {
|
|
"id": ("selectorGrip_rotateconnector_" + this.id),
|
|
"stroke": "#22C",
|
|
"stroke-width": "1"
|
|
}
|
|
}) );
|
|
this.rotateGrip = this.selectorGroup.appendChild( addSvgElementFromJson({
|
|
"element": "circle",
|
|
"attr": {
|
|
"id": ("selectorGrip_rotate_" + this.id),
|
|
"fill": "lime",
|
|
"r": 4,
|
|
"stroke": "#22C",
|
|
"stroke-width": 2,
|
|
"style": "cursor:url(images/rotate.png) 12 12, auto;"
|
|
}
|
|
}) );
|
|
|
|
// add the corner grips
|
|
for (var dir in this.selectorGrips) {
|
|
this.selectorGrips[dir] = this.selectorGroup.appendChild(
|
|
addSvgElementFromJson({
|
|
"element": "circle",
|
|
"attr": {
|
|
"id": ("selectorGrip_resize_" + dir + "_" + this.id),
|
|
"fill": "#22C",
|
|
"r": 4,
|
|
"style": ("cursor:" + dir + "-resize"),
|
|
// This expands the mouse-able area of the grips making them
|
|
// easier to grab with the mouse.
|
|
// This works in Opera and WebKit, but does not work in Firefox
|
|
// see https://bugzilla.mozilla.org/show_bug.cgi?id=500174
|
|
"stroke-width": 2,
|
|
"pointer-events":"all",
|
|
"display":"none"
|
|
}
|
|
}) );
|
|
}
|
|
|
|
this.showGrips = function(show) {
|
|
// TODO: use suspendRedraw() here
|
|
var bShow = show ? "inline" : "none";
|
|
this.rotateGrip.setAttribute("display", bShow);
|
|
this.rotateGripConnector.setAttribute("display", bShow);
|
|
var elem = this.selectedElement;
|
|
for (var dir in this.selectorGrips) {
|
|
this.selectorGrips[dir].setAttribute("display", bShow);
|
|
}
|
|
if(elem) this.updateGripCursors(canvas.getRotationAngle(elem));
|
|
};
|
|
|
|
// Updates cursors for corner grips on rotation so arrows point the right way
|
|
this.updateGripCursors = function(angle) {
|
|
var dir_arr = [];
|
|
var steps = Math.round(angle / 45);
|
|
if(steps < 0) steps += 8;
|
|
for (var dir in this.selectorGrips) {
|
|
dir_arr.push(dir);
|
|
}
|
|
while(steps > 0) {
|
|
dir_arr.push(dir_arr.shift());
|
|
steps--;
|
|
}
|
|
var i = 0;
|
|
for (var dir in this.selectorGrips) {
|
|
this.selectorGrips[dir].setAttribute('style', ("cursor:" + dir_arr[i] + "-resize"));
|
|
i++;
|
|
};
|
|
};
|
|
|
|
this.resize = function() {
|
|
var selectedBox = this.selectorRect,
|
|
selectedGrips = this.selectorGrips,
|
|
selected = this.selectedElement,
|
|
sw = round(selected.getAttribute("stroke-width"));
|
|
var offset = 1/canvas.getZoom();
|
|
if (selected.getAttribute("stroke") != "none" && !isNaN(sw)) {
|
|
offset += sw/2;
|
|
}
|
|
if (selected.tagName == "text") {
|
|
offset += 2/canvas.getZoom();
|
|
}
|
|
var bbox = canvas.getBBox(selected);
|
|
if(selected.tagName == 'g') {
|
|
// The bbox for a group does not include stroke vals, so we
|
|
// get the bbox based on its children.
|
|
var stroked_bbox = canvas.getStrokedBBox(selected.childNodes);
|
|
$.each(bbox, function(key, val) {
|
|
bbox[key] = stroked_bbox[key];
|
|
});
|
|
}
|
|
|
|
// loop and transform our bounding box until we reach our first rotation
|
|
var tlist = canvas.getTransformList(selected),
|
|
m = transformListToTransform(tlist).matrix;
|
|
|
|
// This should probably be handled somewhere else, but for now
|
|
// it keeps the selection box correctly positioned when zoomed
|
|
m.e *= current_zoom;
|
|
m.f *= current_zoom;
|
|
|
|
// apply the transforms
|
|
var l=bbox.x-offset, t=bbox.y-offset, w=bbox.width+(offset<<1), h=bbox.height+(offset<<1),
|
|
bbox = {x:l, y:t, width:w, height:h};
|
|
|
|
// we need to handle temporary transforms too
|
|
// if skewed, get its transformed box, then find its axis-aligned bbox
|
|
|
|
//*
|
|
var nbox = transformBox(l*current_zoom, t*current_zoom, w*current_zoom, h*current_zoom, m),
|
|
nbax = nbox.aabox.x,
|
|
nbay = nbox.aabox.y,
|
|
nbaw = nbox.aabox.width,
|
|
nbah = nbox.aabox.height;
|
|
|
|
// now if the shape is rotated, un-rotate it
|
|
var cx = nbax + nbaw/2,
|
|
cy = nbay + nbah/2;
|
|
var angle = canvas.getRotationAngle(selected);
|
|
if (angle) {
|
|
|
|
var rot = svgroot.createSVGTransform();
|
|
rot.setRotate(-angle,cx,cy);
|
|
var rotm = rot.matrix;
|
|
nbox.tl = transformPoint(nbox.tl.x,nbox.tl.y,rotm);
|
|
nbox.tr = transformPoint(nbox.tr.x,nbox.tr.y,rotm);
|
|
nbox.bl = transformPoint(nbox.bl.x,nbox.bl.y,rotm);
|
|
nbox.br = transformPoint(nbox.br.x,nbox.br.y,rotm);
|
|
|
|
// calculate the axis-aligned bbox
|
|
var minx = nbox.tl.x,
|
|
miny = nbox.tl.y,
|
|
maxx = nbox.tl.x,
|
|
maxy = nbox.tl.y;
|
|
|
|
minx = Math.min(minx, Math.min(nbox.tr.x, Math.min(nbox.bl.x, nbox.br.x) ) );
|
|
miny = Math.min(miny, Math.min(nbox.tr.y, Math.min(nbox.bl.y, nbox.br.y) ) );
|
|
maxx = Math.max(maxx, Math.max(nbox.tr.x, Math.max(nbox.bl.x, nbox.br.x) ) );
|
|
maxy = Math.max(maxy, Math.max(nbox.tr.y, Math.max(nbox.bl.y, nbox.br.y) ) );
|
|
|
|
nbax = minx;
|
|
nbay = miny;
|
|
nbaw = (maxx-minx);
|
|
nbah = (maxy-miny);
|
|
}
|
|
|
|
var sr_handle = svgroot.suspendRedraw(100);
|
|
|
|
var dstr = "M" + nbax + "," + nbay
|
|
+ " L" + (nbax+nbaw) + "," + nbay
|
|
+ " " + (nbax+nbaw) + "," + (nbay+nbah)
|
|
+ " " + nbax + "," + (nbay+nbah) + "z";
|
|
assignAttributes(selectedBox, {'d': dstr});
|
|
|
|
var gripCoords = {
|
|
nw: [nbax, nbay],
|
|
ne: [nbax+nbaw, nbay],
|
|
sw: [nbax, nbay+nbah],
|
|
se: [nbax+nbaw, nbay+nbah],
|
|
n: [nbax + (nbaw)/2, nbay],
|
|
w: [nbax, nbay + (nbah)/2],
|
|
e: [nbax + nbaw, nbay + (nbah)/2],
|
|
s: [nbax + (nbaw)/2, nbay + nbah]
|
|
};
|
|
|
|
if(selected == selectedElements[0]) {
|
|
for(var dir in gripCoords) {
|
|
var coords = gripCoords[dir];
|
|
assignAttributes(selectedGrips[dir], {
|
|
cx: coords[0], cy: coords[1]
|
|
});
|
|
};
|
|
}
|
|
|
|
if (angle) {
|
|
this.selectorGroup.setAttribute("transform", "rotate(" + [angle,cx,cy].join(",") + ")");
|
|
}
|
|
else {
|
|
this.selectorGroup.setAttribute("transform", "");
|
|
}
|
|
|
|
// we want to go 20 pixels in the negative transformed y direction, ignoring scale
|
|
assignAttributes(this.rotateGripConnector, { x1: nbax + (nbaw)/2,
|
|
y1: nbay,
|
|
x2: nbax + (nbaw)/2,
|
|
y2: nbay- 20});
|
|
assignAttributes(this.rotateGrip, { cx: nbax + (nbaw)/2,
|
|
cy: nbay - 20 });
|
|
|
|
svgroot.unsuspendRedraw(sr_handle);
|
|
};
|
|
|
|
// now initialize the selector
|
|
this.reset(elem);
|
|
};
|
|
|
|
function SelectorManager() {
|
|
|
|
// this will hold the <g> element that contains all selector rects/grips
|
|
this.selectorParentGroup = null;
|
|
|
|
// this is a special rect that is used for multi-select
|
|
this.rubberBandBox = null;
|
|
|
|
// this will hold objects of type Selector (see above)
|
|
this.selectors = [];
|
|
|
|
// this holds a map of SVG elements to their Selector object
|
|
this.selectorMap = {};
|
|
|
|
// local reference to this object
|
|
var mgr = this;
|
|
|
|
this.initGroup = function() {
|
|
// remove old selector parent group if it existed
|
|
if (mgr.selectorParentGroup && mgr.selectorParentGroup.parentNode) {
|
|
mgr.selectorParentGroup.parentNode.removeChild(mgr.selectorParentGroup);
|
|
}
|
|
// create parent selector group and add it to svgroot
|
|
mgr.selectorParentGroup = svgdoc.createElementNS(svgns, "g");
|
|
mgr.selectorParentGroup.setAttribute("id", "selectorParentGroup");
|
|
svgroot.appendChild(mgr.selectorParentGroup);
|
|
mgr.selectorMap = {};
|
|
mgr.selectors = [];
|
|
mgr.rubberBandBox = null;
|
|
|
|
if($("#canvasBackground").length) return;
|
|
|
|
var canvasbg = svgdoc.createElementNS(svgns, "svg");
|
|
assignAttributes(canvasbg, {
|
|
'id':'canvasBackground',
|
|
'width': 640,
|
|
'height': 480,
|
|
'x': 0,
|
|
'y': 0,
|
|
'overflow': 'visible',
|
|
'style': 'pointer-events:none'
|
|
});
|
|
|
|
var rect = svgdoc.createElementNS(svgns, "rect");
|
|
assignAttributes(rect, {
|
|
'width': '100%',
|
|
'height': '100%',
|
|
'x': 0,
|
|
'y': 0,
|
|
'stroke-width': 1,
|
|
'stroke': '#000',
|
|
'fill': '#FFF',
|
|
'style': 'pointer-events:none'
|
|
});
|
|
// Both Firefox and WebKit are too slow with this filter region (especially at higher
|
|
// zoom levels) and Opera has at least one bug
|
|
// if (!window.opera) rect.setAttribute('filter', 'url(#canvashadow)');
|
|
canvasbg.appendChild(rect);
|
|
svgroot.insertBefore(canvasbg, svgcontent);
|
|
};
|
|
|
|
this.requestSelector = function(elem) {
|
|
if (elem == null) return null;
|
|
var N = this.selectors.length;
|
|
// if we've already acquired one for this element, return it
|
|
if (typeof(this.selectorMap[elem.id]) == "object") {
|
|
this.selectorMap[elem.id].locked = true;
|
|
return this.selectorMap[elem.id];
|
|
}
|
|
for (var i = 0; i < N; ++i) {
|
|
if (this.selectors[i] && !this.selectors[i].locked) {
|
|
this.selectors[i].locked = true;
|
|
this.selectors[i].reset(elem);
|
|
this.selectorMap[elem.id] = this.selectors[i];
|
|
return this.selectors[i];
|
|
}
|
|
}
|
|
// if we reached here, no available selectors were found, we create one
|
|
this.selectors[N] = new Selector(N, elem);
|
|
this.selectorParentGroup.appendChild(this.selectors[N].selectorGroup);
|
|
this.selectorMap[elem.id] = this.selectors[N];
|
|
return this.selectors[N];
|
|
};
|
|
this.releaseSelector = function(elem) {
|
|
if (elem == null) return;
|
|
var N = this.selectors.length,
|
|
sel = this.selectorMap[elem.id];
|
|
for (var i = 0; i < N; ++i) {
|
|
if (this.selectors[i] && this.selectors[i] == sel) {
|
|
if (sel.locked == false) {
|
|
console.log("WARNING! selector was released but was already unlocked");
|
|
}
|
|
delete this.selectorMap[elem.id];
|
|
sel.locked = false;
|
|
sel.selectedElement = null;
|
|
sel.showGrips(false);
|
|
|
|
// remove from DOM and store reference in JS but only if it exists in the DOM
|
|
try {
|
|
sel.selectorGroup.setAttribute("display", "none");
|
|
} catch(e) { }
|
|
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
this.getRubberBandBox = function() {
|
|
if (this.rubberBandBox == null) {
|
|
this.rubberBandBox = this.selectorParentGroup.appendChild(
|
|
addSvgElementFromJson({ "element": "rect",
|
|
"attr": {
|
|
"id": "selectorRubberBand",
|
|
"fill": "#22C",
|
|
"fill-opacity": 0.15,
|
|
"stroke": "#22C",
|
|
"stroke-width": 0.5,
|
|
"display": "none",
|
|
"style": "pointer-events:none"
|
|
}
|
|
}));
|
|
}
|
|
return this.rubberBandBox;
|
|
};
|
|
|
|
this.initGroup();
|
|
}
|
|
// **************************************************************************************
|
|
|
|
// **************************************************************************************
|
|
// SVGTransformList implementation for Webkit
|
|
// These methods do not currently raise any exceptions.
|
|
// These methods also do not check that transforms are being inserted or handle if
|
|
// a transform is already in the list, etc. This is basically implementing as much
|
|
// of SVGTransformList that we need to get the job done.
|
|
//
|
|
// interface SVGEditTransformList {
|
|
// attribute unsigned long numberOfItems;
|
|
// void clear ( )
|
|
// SVGTransform initialize ( in SVGTransform newItem )
|
|
// SVGTransform getItem ( in unsigned long index )
|
|
// SVGTransform insertItemBefore ( in SVGTransform newItem, in unsigned long index )
|
|
// SVGTransform replaceItem ( in SVGTransform newItem, in unsigned long index )
|
|
// SVGTransform removeItem ( in unsigned long index )
|
|
// SVGTransform appendItem ( in SVGTransform newItem )
|
|
// NOT IMPLEMENTED: SVGTransform createSVGTransformFromMatrix ( in SVGMatrix matrix );
|
|
// NOT IMPLEMENTED: SVGTransform consolidate ( );
|
|
// }
|
|
// **************************************************************************************
|
|
var svgTransformLists = {};
|
|
var SVGEditTransformList = function(elem) {
|
|
this._elem = elem || null;
|
|
this._xforms = [];
|
|
// TODO: how do we capture the undo-ability in the changed transform list?
|
|
this._update = function() {
|
|
var tstr = "";
|
|
var concatMatrix = svgroot.createSVGMatrix();
|
|
for (var i = 0; i < this.numberOfItems; ++i) {
|
|
var xform = this._list.getItem(i);
|
|
tstr += transformToObj(xform).text + " ";
|
|
}
|
|
this._elem.setAttribute("transform", tstr);
|
|
};
|
|
this._list = this;
|
|
this._init = function() {
|
|
// Transform attribute parser
|
|
var str = this._elem.getAttribute("transform");
|
|
if(!str) return;
|
|
|
|
// TODO: Add skew support in future
|
|
var re = /\s*((scale|matrix|rotate|translate)\s*\(.*?\))\s*,?\s*/;
|
|
var arr = [];
|
|
var m = true;
|
|
while(m) {
|
|
m = str.match(re);
|
|
str = str.replace(re,'');
|
|
if(m && m[1]) {
|
|
var x = m[1];
|
|
var bits = x.split(/\s*\(/);
|
|
var name = bits[0];
|
|
var val_bits = bits[1].match(/\s*(.*?)\s*\)/);
|
|
var val_arr = val_bits[1].split(/[, ]+/);
|
|
var letters = 'abcdef'.split('');
|
|
var mtx = svgroot.createSVGMatrix();
|
|
$.each(val_arr, function(i, item) {
|
|
val_arr[i] = parseFloat(item);
|
|
if(name == 'matrix') {
|
|
mtx[letters[i]] = val_arr[i];
|
|
}
|
|
});
|
|
var xform = svgroot.createSVGTransform();
|
|
var fname = 'set' + name.charAt(0).toUpperCase() + name.slice(1);
|
|
var values = name=='matrix'?[mtx]:val_arr;
|
|
xform[fname].apply(xform, values);
|
|
this._list.appendItem(xform);
|
|
}
|
|
}
|
|
}
|
|
|
|
this.numberOfItems = 0;
|
|
this.clear = function() {
|
|
this.numberOfItems = 0;
|
|
this._xforms = [];
|
|
};
|
|
|
|
this.initialize = function(newItem) {
|
|
this.numberOfItems = 1;
|
|
this._xforms = [newItem];
|
|
};
|
|
|
|
this.getItem = function(index) {
|
|
if (index < this.numberOfItems && index >= 0) {
|
|
return this._xforms[index];
|
|
}
|
|
return null;
|
|
};
|
|
|
|
this.insertItemBefore = function(newItem, index) {
|
|
var retValue = null;
|
|
if (index >= 0) {
|
|
if (index < this.numberOfItems) {
|
|
var newxforms = new Array(this.numberOfItems + 1);
|
|
// TODO: use array copying and slicing
|
|
for ( var i = 0; i < index; ++i) {
|
|
newxforms[i] = this._xforms[i];
|
|
}
|
|
newxforms[i] = newItem;
|
|
for ( var j = i+1; i < this.numberOfItems; ++j, ++i) {
|
|
newxforms[j] = this._xforms[i];
|
|
}
|
|
this.numberOfItems++;
|
|
this._xforms = newxforms;
|
|
retValue = newItem;
|
|
this._list._update();
|
|
}
|
|
else {
|
|
retValue = this._list.appendItem(newItem);
|
|
}
|
|
}
|
|
return retValue;
|
|
};
|
|
|
|
this.replaceItem = function(newItem, index) {
|
|
var retValue = null;
|
|
if (index < this.numberOfItems && index >= 0) {
|
|
this._xforms[index] = newItem;
|
|
retValue = newItem;
|
|
this._list._update();
|
|
}
|
|
return retValue;
|
|
};
|
|
|
|
this.removeItem = function(index) {
|
|
var retValue = null;
|
|
if (index < this.numberOfItems && index >= 0) {
|
|
var retValue = this._xforms[index];
|
|
var newxforms = new Array(this.numberOfItems - 1);
|
|
for (var i = 0; i < index; ++i) {
|
|
newxforms[i] = this._xforms[i];
|
|
}
|
|
for (var j = i; j < this.numberOfItems-1; ++j, ++i) {
|
|
newxforms[j] = this._xforms[i+1];
|
|
}
|
|
this.numberOfItems--;
|
|
this._xforms = newxforms;
|
|
this._list._update();
|
|
}
|
|
return retValue;
|
|
};
|
|
|
|
this.appendItem = function(newItem) {
|
|
this._xforms.push(newItem);
|
|
this.numberOfItems++;
|
|
this._list._update();
|
|
return newItem;
|
|
};
|
|
};
|
|
// **************************************************************************************
|
|
|
|
var addSvgElementFromJson = function(data) {
|
|
return canvas.updateElementFromJson(data)
|
|
};
|
|
|
|
// TODO: declare the variables and set them as null, then move this setup stuff to
|
|
// an initialization function - probably just use clear()
|
|
|
|
var canvas = this,
|
|
svgns = "http://www.w3.org/2000/svg",
|
|
xlinkns = "http://www.w3.org/1999/xlink",
|
|
xmlns = "http://www.w3.org/XML/1998/namespace",
|
|
xmlnsns = "http://www.w3.org/2000/xmlns/", // see http://www.w3.org/TR/REC-xml-names/#xmlReserved
|
|
se_ns = "http://svg-edit.googlecode.com",
|
|
htmlns = "http://www.w3.org/1999/xhtml",
|
|
mathns = "http://www.w3.org/1998/Math/MathML",
|
|
idprefix = "svg_",
|
|
svgdoc = container.ownerDocument,
|
|
svgroot = svgdoc.importNode(Utils.text2xml('<svg id="svgroot" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" ' +
|
|
'width="640" height="480" x="640" y="480" overflow="visible">' +
|
|
'<defs>' +
|
|
'<filter id="canvashadow" filterUnits="objectBoundingBox">' +
|
|
'<feGaussianBlur in="SourceAlpha" stdDeviation="4" result="blur"/>'+
|
|
'<feOffset in="blur" dx="5" dy="5" result="offsetBlur"/>'+
|
|
'<feMerge>'+
|
|
'<feMergeNode in="offsetBlur"/>'+
|
|
'<feMergeNode in="SourceGraphic"/>'+
|
|
'</feMerge>'+
|
|
'</filter>'+
|
|
'</defs>'+
|
|
'</svg>').documentElement, true);
|
|
|
|
$(svgroot).appendTo(container);
|
|
|
|
var opac_ani = document.createElementNS(svgns, 'animate');
|
|
$(opac_ani).attr({
|
|
attributeName: 'opacity',
|
|
begin: 'indefinite',
|
|
dur: 1,
|
|
fill: 'freeze'
|
|
}).appendTo(svgroot);
|
|
|
|
//nonce to uniquify id's
|
|
var nonce = Math.floor(Math.random()*100001);
|
|
var randomize_ids = false;
|
|
|
|
// map namespace URIs to prefixes
|
|
var nsMap = {};
|
|
nsMap[xlinkns] = 'xlink';
|
|
nsMap[xmlns] = 'xml';
|
|
nsMap[xmlnsns] = 'xmlns';
|
|
nsMap[se_ns] = 'se';
|
|
nsMap[htmlns] = 'xhtml';
|
|
nsMap[mathns] = 'mathml';
|
|
|
|
// map prefixes to namespace URIs
|
|
var nsRevMap = {};
|
|
$.each(nsMap, function(key,value){
|
|
nsRevMap[value] = key;
|
|
});
|
|
|
|
// Produce a Namespace-aware version of svgWhitelist
|
|
var svgWhiteListNS = {};
|
|
$.each(svgWhiteList, function(elt,atts){
|
|
attNS = {};
|
|
$.each(atts, function(i, att){
|
|
if (att.indexOf(':') != -1) {
|
|
v=att.split(':');
|
|
attNS[v[1]] = nsRevMap[v[0]];
|
|
} else {
|
|
attNS[att] = att == 'xmlns' ? xmlnsns : null;
|
|
}
|
|
});
|
|
svgWhiteListNS[elt] = attNS;
|
|
});
|
|
|
|
var svgcontent = svgdoc.createElementNS(svgns, "svg");
|
|
$(svgcontent).attr({
|
|
id: 'svgcontent',
|
|
width: 640,
|
|
height: 480,
|
|
x: 640,
|
|
y: 480,
|
|
overflow: 'visible',
|
|
xmlns: svgns,
|
|
"xmlns:se": se_ns,
|
|
"xmlns:xlink": xlinkns
|
|
}).appendTo(svgroot);
|
|
if (randomize_ids) svgcontent.setAttributeNS(se_ns, 'se:nonce', nonce);
|
|
|
|
var convertToNum, convertToUnit, setUnitAttr;
|
|
|
|
(function() {
|
|
var w_attrs = ['x', 'x1', 'cx', 'rx', 'width'];
|
|
var h_attrs = ['y', 'y1', 'cy', 'ry', 'height'];
|
|
var unit_attrs = $.merge(['r','radius'], w_attrs);
|
|
$.merge(unit_attrs, h_attrs);
|
|
|
|
// Converts given values to numbers. Attributes must be supplied in
|
|
// case a percentage is given
|
|
convertToNum = function(attr, val) {
|
|
// Return a number if that's what it already is
|
|
if(!isNaN(val)) return val-0;
|
|
|
|
if(val.substr(-1) === '%') {
|
|
// Deal with percentage, depends on attribute
|
|
var num = val.substr(0, val.length-1)/100;
|
|
var res = canvas.getResolution();
|
|
|
|
if($.inArray(attr, w_attrs) !== -1) {
|
|
return num * res.w;
|
|
} else if($.inArray(attr, h_attrs) !== -1) {
|
|
return num * res.h;
|
|
} else {
|
|
return num * Math.sqrt((res.w*res.w) + (res.h*res.h))/Math.sqrt(2);
|
|
}
|
|
} else {
|
|
var unit = val.substr(-2);
|
|
var num = val.substr(0, val.length-2);
|
|
// Note that this multiplication turns the string into a number
|
|
return num * unit_types[unit];
|
|
}
|
|
};
|
|
|
|
setUnitAttr = function(elem, attr, val) {
|
|
if(!isNaN(val)) {
|
|
// New value is a number, so check currently used unit
|
|
var old_val = elem.getAttribute(attr);
|
|
|
|
if(old_val !== null && isNaN(old_val)) {
|
|
// Old value was a number, so get unit, then convert
|
|
var unit;
|
|
if(old_val.substr(-1) === '%') {
|
|
var res = canvas.getResolution();
|
|
unit = '%';
|
|
val *= 100;
|
|
if($.inArray(attr, w_attrs) !== -1) {
|
|
val = val / res.w;
|
|
} else if($.inArray(attr, h_attrs) !== -1) {
|
|
val = val / res.h;
|
|
} else {
|
|
return val / Math.sqrt((res.w*res.w) + (res.h*res.h))/Math.sqrt(2);
|
|
}
|
|
|
|
} else {
|
|
unit = old_val.substr(-2);
|
|
val = val / unit_types[unit];
|
|
}
|
|
|
|
val += unit;
|
|
}
|
|
}
|
|
|
|
elem.setAttribute(attr, val);
|
|
}
|
|
|
|
canvas.isValidUnit = function(attr, val) {
|
|
var valid = false;
|
|
if($.inArray(attr, unit_attrs) != -1) {
|
|
// True if it's just a number
|
|
if(!isNaN(val)) {
|
|
valid = true;
|
|
} else {
|
|
// Not a number, check if it has a valid unit
|
|
val = val.toLowerCase();
|
|
$.each(unit_types, function(unit) {
|
|
if(valid) return;
|
|
var re = new RegExp('^-?[\\d\\.]+' + unit + '$');
|
|
if(re.test(val)) valid = true;
|
|
});
|
|
}
|
|
} else if (attr == "id") {
|
|
// if we're trying to change the id, make sure it's not already present in the doc
|
|
// and the id value is valid.
|
|
|
|
var result = false;
|
|
// because getElem() can throw an exception in the case of an invalid id
|
|
// (according to http://www.w3.org/TR/xml-id/ IDs must be a NCName)
|
|
// we wrap it in an exception and only return true if the ID was valid and
|
|
// not already present
|
|
try {
|
|
var elem = getElem(val);
|
|
result = (elem == null);
|
|
} catch(e) {}
|
|
return result;
|
|
} else valid = true;
|
|
|
|
return valid;
|
|
}
|
|
|
|
})();
|
|
|
|
var assignAttributes = function(node, attrs, suspendLength, unitCheck) {
|
|
if(!suspendLength) suspendLength = 0;
|
|
// Opera has a problem with suspendRedraw() apparently
|
|
var handle = null;
|
|
if (!window.opera) svgroot.suspendRedraw(suspendLength);
|
|
|
|
for (var i in attrs) {
|
|
var ns = (i.substr(0,4) == "xml:" ? xmlns :
|
|
i.substr(0,6) == "xlink:" ? xlinkns : null);
|
|
|
|
if(ns || !unitCheck) {
|
|
node.setAttributeNS(ns, i, attrs[i]);
|
|
} else {
|
|
setUnitAttr(node, i, attrs[i]);
|
|
}
|
|
|
|
}
|
|
|
|
if (!window.opera) svgroot.unsuspendRedraw(handle);
|
|
};
|
|
|
|
// remove unneeded attributes
|
|
// makes resulting SVG smaller
|
|
var cleanupElement = function(element) {
|
|
var handle = svgroot.suspendRedraw(60);
|
|
var defaults = {
|
|
'fill-opacity':1,
|
|
'opacity':1,
|
|
'stroke':'none',
|
|
'stroke-dasharray':'none',
|
|
'stroke-opacity':1,
|
|
'stroke-width':1,
|
|
'rx':0,
|
|
'ry':0
|
|
}
|
|
for(var attr in defaults) {
|
|
var val = defaults[attr];
|
|
if(element.getAttribute(attr) == val) {
|
|
element.removeAttribute(attr);
|
|
}
|
|
}
|
|
|
|
svgroot.unsuspendRedraw(handle);
|
|
};
|
|
|
|
this.updateElementFromJson = function(data) {
|
|
var shape = getElem(data.attr.id);
|
|
// if shape is a path but we need to create a rect/ellipse, then remove the path
|
|
if (shape && data.element != shape.tagName) {
|
|
current_layer.removeChild(shape);
|
|
shape = null;
|
|
}
|
|
if (!shape) {
|
|
shape = svgdoc.createElementNS(svgns, data.element);
|
|
if (current_layer) {
|
|
current_layer.appendChild(shape);
|
|
}
|
|
}
|
|
assignAttributes(shape, data.attr, 100);
|
|
cleanupElement(shape);
|
|
return shape;
|
|
};
|
|
|
|
(function() {
|
|
// TODO: make this string optional and set by the client
|
|
var comment = svgdoc.createComment(" Created with SVG-edit - http://svg-edit.googlecode.com/ ");
|
|
svgcontent.appendChild(comment);
|
|
|
|
// TODO For Issue 208: this is a start on a thumbnail
|
|
// var svgthumb = svgdoc.createElementNS(svgns, "use");
|
|
// svgthumb.setAttribute('width', '100');
|
|
// svgthumb.setAttribute('height', '100');
|
|
// svgthumb.setAttributeNS(xlinkns, 'href', '#svgcontent');
|
|
// svgroot.appendChild(svgthumb);
|
|
|
|
})();
|
|
// z-ordered array of tuples containing layer names and <g> elements
|
|
// the first layer is the one at the bottom of the rendering
|
|
var all_layers = [],
|
|
encodableImages = {},
|
|
last_good_img_url = 'images/logo.png',
|
|
// pointer to the current layer <g>
|
|
current_layer = null,
|
|
save_options = {round_digits: 5},
|
|
started = false,
|
|
obj_num = 1,
|
|
start_transform = null,
|
|
current_mode = "select",
|
|
current_resize_mode = "none",
|
|
all_properties = {
|
|
shape: {
|
|
fill: "#FF0000",
|
|
fill_paint: null,
|
|
fill_opacity: 1,
|
|
stroke: "#000000",
|
|
stroke_paint: null,
|
|
stroke_opacity: 1,
|
|
stroke_width: 5,
|
|
stroke_style: 'none',
|
|
opacity: 1
|
|
}
|
|
};
|
|
|
|
all_properties.text = $.extend(true, {}, all_properties.shape);
|
|
$.extend(all_properties.text, {
|
|
fill: "#000000",
|
|
stroke_width: 0,
|
|
font_size: 24,
|
|
font_family: 'serif'
|
|
});
|
|
|
|
var cur_shape = all_properties.shape,
|
|
cur_text = all_properties.text,
|
|
cur_properties = cur_shape,
|
|
current_zoom = 1,
|
|
// this will hold all the currently selected elements
|
|
// default size of 1 until it needs to grow bigger
|
|
selectedElements = new Array(1),
|
|
// this holds the selected's bbox
|
|
selectedBBoxes = new Array(1),
|
|
justSelected = null,
|
|
// this object manages selectors for us
|
|
selectorManager = new SelectorManager(),
|
|
rubberBox = null,
|
|
events = {},
|
|
undoStackPointer = 0,
|
|
undoStack = [],
|
|
curBBoxes = [],
|
|
extensions = {};
|
|
|
|
// Should this return an array by default, so extension results aren't overwritten?
|
|
var runExtensions = this.runExtensions = function(action, vars, returnArray) {
|
|
var result = false;
|
|
if(returnArray) result = [];
|
|
$.each(extensions, function(name, opts) {
|
|
if(action in opts) {
|
|
if(returnArray) {
|
|
result.push(opts[action](vars))
|
|
} else {
|
|
result = opts[action](vars);
|
|
}
|
|
}
|
|
});
|
|
return result;
|
|
}
|
|
|
|
// This method rounds the incoming value to the nearest value based on the current_zoom
|
|
var round = function(val){
|
|
return parseInt(val*current_zoom)/current_zoom;
|
|
};
|
|
|
|
// This method sends back an array or a NodeList full of elements that
|
|
// intersect the multi-select rubber-band-box on the current_layer only.
|
|
//
|
|
// Since the only browser that supports the SVG DOM getIntersectionList is Opera,
|
|
// we need to provide an implementation here. We brute-force it for now.
|
|
//
|
|
// Reference:
|
|
// Firefox does not implement getIntersectionList(), see https://bugzilla.mozilla.org/show_bug.cgi?id=501421
|
|
// Webkit does not implement getIntersectionList(), see https://bugs.webkit.org/show_bug.cgi?id=11274
|
|
var getIntersectionList = function(rect) {
|
|
if (rubberBox == null) { return null; }
|
|
|
|
if(!curBBoxes.length) {
|
|
// Cache all bboxes
|
|
curBBoxes = canvas.getVisibleElements(current_layer, true);
|
|
}
|
|
|
|
var resultList = null;
|
|
try {
|
|
resultList = current_layer.getIntersectionList(rect, null);
|
|
} catch(e) { }
|
|
|
|
if (resultList == null || typeof(resultList.item) != "function") {
|
|
resultList = [];
|
|
|
|
var rubberBBox = rubberBox.getBBox();
|
|
$.each(rubberBBox, function(key, val) {
|
|
rubberBBox[key] = val / current_zoom;
|
|
});
|
|
var i = curBBoxes.length;
|
|
while (i--) {
|
|
if(!rubberBBox.width || !rubberBBox.width) continue;
|
|
if (Utils.rectsIntersect(rubberBBox, curBBoxes[i].bbox)) {
|
|
resultList.push(curBBoxes[i].elem);
|
|
}
|
|
}
|
|
}
|
|
// addToSelection expects an array, but it's ok to pass a NodeList
|
|
// because using square-bracket notation is allowed:
|
|
// http://www.w3.org/TR/DOM-Level-2-Core/ecma-script-binding.html
|
|
return resultList;
|
|
};
|
|
|
|
// FIXME: we MUST compress consecutive text changes to the same element
|
|
// (right now each keystroke is saved as a separate command that includes the
|
|
// entire text contents of the text element)
|
|
// TODO: consider limiting the history that we store here (need to do some slicing)
|
|
var addCommandToHistory = function(cmd) {
|
|
// if our stack pointer is not at the end, then we have to remove
|
|
// all commands after the pointer and insert the new command
|
|
if (undoStackPointer < undoStack.length && undoStack.length > 0) {
|
|
undoStack = undoStack.splice(0, undoStackPointer);
|
|
}
|
|
undoStack.push(cmd);
|
|
undoStackPointer = undoStack.length;
|
|
};
|
|
|
|
// private functions
|
|
var getId = function() {
|
|
if (events["getid"]) return call("getid", obj_num);
|
|
if (randomize_ids) {
|
|
return idprefix + nonce +'_' + obj_num;
|
|
} else {
|
|
return idprefix + obj_num;
|
|
}
|
|
};
|
|
|
|
var getNextId = function() {
|
|
// ensure the ID does not exist
|
|
var id = getId();
|
|
|
|
while (getElem(id)) {
|
|
obj_num++;
|
|
id = getId();
|
|
}
|
|
return id;
|
|
};
|
|
|
|
var call = function(event, arg) {
|
|
if (events[event]) {
|
|
return events[event](this,arg);
|
|
}
|
|
};
|
|
|
|
// this function sanitizes the input node and its children
|
|
// this function only keeps what is allowed from our whitelist defined above
|
|
var sanitizeSvg = function(node) {
|
|
// we only care about element nodes
|
|
// automatically return for all comment, etc nodes
|
|
// for text, we do a whitespace trim
|
|
if (node.nodeType == 3) {
|
|
node.nodeValue = node.nodeValue.replace(/^\s+|\s+$/g, "");
|
|
// Remove empty text nodes
|
|
if(!node.nodeValue.length) node.parentNode.removeChild(node);
|
|
}
|
|
if (node.nodeType != 1) return;
|
|
var doc = node.ownerDocument;
|
|
var parent = node.parentNode;
|
|
// can parent ever be null here? I think the root node's parent is the document...
|
|
if (!doc || !parent) return;
|
|
|
|
var allowedAttrs = svgWhiteList[node.nodeName];
|
|
var allowedAttrsNS = svgWhiteListNS[node.nodeName];
|
|
|
|
// if this element is allowed
|
|
if (allowedAttrs != undefined) {
|
|
var se_attrs = [];
|
|
|
|
var i = node.attributes.length;
|
|
while (i--) {
|
|
// if the attribute is not in our whitelist, then remove it
|
|
// could use jQuery's inArray(), but I don't know if that's any better
|
|
var attr = node.attributes.item(i);
|
|
var attrName = attr.nodeName;
|
|
var attrLocalName = attr.localName;
|
|
var attrNsURI = attr.namespaceURI;
|
|
// Check that an attribute with the correct localName in the correct namespace is on
|
|
// our whitelist or is a namespace declaration for one of our allowed namespaces
|
|
if (!(allowedAttrsNS.hasOwnProperty(attrLocalName) && attrNsURI == allowedAttrsNS[attrLocalName] && attrNsURI != xmlnsns) &&
|
|
!(attrNsURI == xmlnsns && nsMap[attr.nodeValue]) )
|
|
{
|
|
// Bypassing the whitelist to allow se: prefixes. Is there
|
|
// a more appropriate way to do this?
|
|
if(attrName.indexOf('se:') == 0) {
|
|
se_attrs.push([attrName, attr.nodeValue]);
|
|
}
|
|
node.removeAttributeNS(attrNsURI, attrLocalName);
|
|
}
|
|
// special handling for path d attribute
|
|
if (node.nodeName == 'path' && attrName == 'd') {
|
|
// Convert to absolute
|
|
node.setAttribute('d',pathActions.convertPath(node));
|
|
pathActions.fixEnd(node);
|
|
}
|
|
// for the style attribute, rewrite it in terms of XML presentational attributes
|
|
if (attrName == "style") {
|
|
var props = attr.nodeValue.split(";"),
|
|
p = props.length;
|
|
while(p--) {
|
|
var nv = props[p].split(":");
|
|
// now check that this attribute is supported
|
|
if (allowedAttrs.indexOf(nv[0]) != -1) {
|
|
node.setAttribute(nv[0],nv[1]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$.each(se_attrs, function(i, attr) {
|
|
node.setAttributeNS(se_ns, attr[0], attr[1]);
|
|
});
|
|
|
|
// for some elements that have a xlink:href, ensure the URI refers to a local element
|
|
// (but not for links)
|
|
var href = node.getAttributeNS(xlinkns,"href");
|
|
if(href &&
|
|
$.inArray(node.nodeName, ["filter", "linearGradient", "pattern",
|
|
"radialGradient", "textPath", "use"]) != -1)
|
|
{
|
|
// TODO: we simply check if the first character is a #, is this bullet-proof?
|
|
if (href[0] != "#") {
|
|
// remove the attribute (but keep the element)
|
|
node.setAttributeNS(xlinkns, "xlink:href", "");
|
|
node.removeAttributeNS(xlinkns, "href");
|
|
}
|
|
}
|
|
|
|
// Safari crashes on a <use> without a xlink:href, so we just remove the node here
|
|
if (node.nodeName == "use" && !node.getAttributeNS(xlinkns,"href")) {
|
|
parent.removeChild(node);
|
|
return;
|
|
}
|
|
// if the element has attributes pointing to a non-local reference,
|
|
// need to remove the attribute
|
|
$.each(["clip-path", "fill", "filter", "marker-end", "marker-mid", "marker-start", "mask", "stroke"],function(i,attr) {
|
|
var val = node.getAttribute(attr);
|
|
if (val) {
|
|
val = getUrlFromAttr(val);
|
|
// simply check for first character being a '#'
|
|
if (val && val[0] != "#") {
|
|
node.setAttribute(attr, "");
|
|
node.removeAttribute(attr);
|
|
}
|
|
}
|
|
});
|
|
|
|
// recurse to children
|
|
i = node.childNodes.length;
|
|
while (i--) { sanitizeSvg(node.childNodes.item(i)); }
|
|
}
|
|
// else, remove this element
|
|
else {
|
|
// remove all children from this node and insert them before this node
|
|
// FIXME: in the case of animation elements this will hardly ever be correct
|
|
var children = [];
|
|
while (node.hasChildNodes()) {
|
|
children.push(parent.insertBefore(node.firstChild, node));
|
|
}
|
|
|
|
// remove this node from the document altogether
|
|
parent.removeChild(node);
|
|
|
|
// call sanitizeSvg on each of those children
|
|
var i = children.length;
|
|
while (i--) { sanitizeSvg(children[i]); }
|
|
|
|
}
|
|
};
|
|
|
|
// extracts the URL from the url(...) syntax of some attributes. Three variants:
|
|
// i.e. <circle fill="url(someFile.svg#foo)" /> or
|
|
// <circle fill="url('someFile.svg#foo')" /> or
|
|
// <circle fill='url("someFile.svg#foo")' />
|
|
this.getUrlFromAttr = function(attrVal) {
|
|
if (attrVal) {
|
|
// url("#somegrad")
|
|
if (attrVal.indexOf('url("') == 0) {
|
|
return attrVal.substring(5,attrVal.indexOf('"',6));
|
|
}
|
|
// url('#somegrad')
|
|
else if (attrVal.indexOf("url('") == 0) {
|
|
return attrVal.substring(5,attrVal.indexOf("'",6));
|
|
}
|
|
else if (attrVal.indexOf("url(") == 0) {
|
|
return attrVal.substring(4,attrVal.indexOf(')'));
|
|
}
|
|
}
|
|
return null;
|
|
};
|
|
var getUrlFromAttr = this.getUrlFromAttr;
|
|
|
|
var removeUnusedGrads = function() {
|
|
var defs = svgcontent.getElementsByTagNameNS(svgns, "defs");
|
|
if(!defs || !defs.length) return 0;
|
|
|
|
var all_els = svgcontent.getElementsByTagNameNS(svgns, '*'),
|
|
grad_uses = [],
|
|
numRemoved = 0;
|
|
|
|
$.each(all_els, function(i, el) {
|
|
var fill = getUrlFromAttr(el.getAttribute('fill'));
|
|
if(fill) {
|
|
grad_uses.push(fill.substr(1));
|
|
}
|
|
|
|
var stroke = getUrlFromAttr(el.getAttribute('stroke'));
|
|
if (stroke) {
|
|
grad_uses.push(stroke.substr(1));
|
|
}
|
|
|
|
// gradients can refer to other gradients
|
|
var href = el.getAttributeNS(xlinkns, "href");
|
|
if (href && href.indexOf('#') == 0) {
|
|
grad_uses.push(href.substr(1));
|
|
}
|
|
});
|
|
|
|
var grads = $(svgcontent).find("linearGradient, radialGradient");
|
|
grad_ids = [],
|
|
i = grads.length;
|
|
while (i--) {
|
|
var grad = grads[i];
|
|
var id = grad.id;
|
|
if($.inArray(id, grad_uses) == -1) {
|
|
// Not found, so remove
|
|
grad.parentNode.removeChild(grad);
|
|
numRemoved++;
|
|
}
|
|
}
|
|
|
|
// Remove defs if empty
|
|
var i = defs.length;
|
|
while (i--) {
|
|
var def = defs[i];
|
|
if(!def.getElementsByTagNameNS(svgns,'*').length) {
|
|
def.parentNode.removeChild(def);
|
|
}
|
|
}
|
|
|
|
return numRemoved;
|
|
}
|
|
|
|
var svgCanvasToString = function() {
|
|
// keep calling it until there are none to remove
|
|
while (removeUnusedGrads() > 0) {};
|
|
pathActions.clear(true);
|
|
|
|
// Keep SVG-Edit comment on top
|
|
$.each(svgcontent.childNodes, function(i, node) {
|
|
if(i && node.nodeType == 8 && node.data.indexOf('Created with') != -1) {
|
|
svgcontent.insertBefore(node, svgcontent.firstChild);
|
|
}
|
|
});
|
|
|
|
var output = svgToString(svgcontent, 0);
|
|
return output;
|
|
}
|
|
|
|
var svgToString = function(elem, indent) {
|
|
var out = new Array();
|
|
|
|
if (elem) {
|
|
cleanupElement(elem);
|
|
var attrs = elem.attributes,
|
|
attr,
|
|
i,
|
|
childs = elem.childNodes;
|
|
|
|
for (var i=0; i<indent; i++) out.push(" ");
|
|
out.push("<"); out.push(elem.nodeName);
|
|
if(elem.id == 'svgcontent') {
|
|
// Process root element separately
|
|
var res = canvas.getResolution();
|
|
out.push(' width="' + res.w + '" height="' + res.h + '" xmlns="'+svgns+'"');
|
|
var i = attrs.length;
|
|
while (i--) {
|
|
attr = attrs.item(i);
|
|
var attrVal = toXml(attr.nodeValue);
|
|
// only serialize attributes we don't use internally
|
|
if (attrVal != "" &&
|
|
$.inArray(attr.localName, ['width','height','xmlns','x','y','viewBox','id','overflow']) == -1)
|
|
{
|
|
if(!attr.namespaceURI || nsMap[attr.namespaceURI]) {
|
|
out.push(' ');
|
|
out.push(attr.nodeName); out.push("=\"");
|
|
out.push(attrVal); out.push("\"");
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
for (var i=attrs.length-1; i>=0; i--) {
|
|
attr = attrs.item(i);
|
|
var attrVal = toXml(attr.nodeValue);
|
|
if (attr.localName == '-moz-math-font-style') continue;
|
|
if (attrVal != "") {
|
|
if(attrVal.indexOf('pointer-events') == 0) continue;
|
|
if(attr.localName == "class" && attrVal.indexOf('se_') == 0) continue;
|
|
out.push(" ");
|
|
if(attr.localName == 'd') attrVal = pathActions.convertPath(elem, true);
|
|
if(!isNaN(attrVal)) {
|
|
attrVal = shortFloat(attrVal);
|
|
}
|
|
|
|
// Embed images when saving
|
|
if(save_options.apply
|
|
&& elem.nodeName == 'image'
|
|
&& attr.localName == 'href'
|
|
&& save_options.images
|
|
&& save_options.images == 'embed')
|
|
{
|
|
var img = encodableImages[attrVal];
|
|
if(img) attrVal = img;
|
|
}
|
|
|
|
// map various namespaces to our fixed namespace prefixes
|
|
// (the default xmlns attribute itself does not get a prefix)
|
|
if(!attr.namespaceURI || attr.namespaceURI == svgns || nsMap[attr.namespaceURI]) {
|
|
out.push(attr.nodeName); out.push("=\"");
|
|
out.push(attrVal); out.push("\"");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (elem.hasChildNodes()) {
|
|
out.push(">");
|
|
indent++;
|
|
var bOneLine = false;
|
|
for (var i=0; i<childs.length; i++)
|
|
{
|
|
var child = childs.item(i);
|
|
switch(child.nodeType) {
|
|
case 1: // element node
|
|
out.push("\n");
|
|
out.push(svgToString(childs.item(i), indent));
|
|
break;
|
|
case 3: // text node
|
|
var str = child.nodeValue.replace(/^\s+|\s+$/g, "");
|
|
if (str != "") {
|
|
bOneLine = true;
|
|
out.push(toXml(str) + "");
|
|
}
|
|
break;
|
|
case 8: // comment
|
|
out.push("\n");
|
|
out.push(new Array(indent+1).join(" "));
|
|
out.push("<!--");
|
|
out.push(child.data);
|
|
out.push("-->");
|
|
break;
|
|
} // switch on node type
|
|
}
|
|
indent--;
|
|
if (!bOneLine) {
|
|
out.push("\n");
|
|
for (var i=0; i<indent; i++) out.push(" ");
|
|
}
|
|
out.push("</"); out.push(elem.nodeName); out.push(">");
|
|
} else {
|
|
out.push("/>");
|
|
}
|
|
}
|
|
return out.join('');
|
|
}; // end svgToString()
|
|
|
|
this.embedImage = function(val, callback) {
|
|
|
|
// load in the image and once it's loaded, get the dimensions
|
|
$(new Image()).load(function() {
|
|
// create a canvas the same size as the raster image
|
|
var canvas = document.createElement("canvas");
|
|
canvas.width = this.width;
|
|
canvas.height = this.height;
|
|
// load the raster image into the canvas
|
|
canvas.getContext("2d").drawImage(this,0,0);
|
|
// retrieve the data: URL
|
|
try {
|
|
var urldata = ';svgedit_url=' + encodeURIComponent(val);
|
|
urldata = canvas.toDataURL().replace(';base64',urldata+';base64');
|
|
encodableImages[val] = urldata;
|
|
} catch(e) {
|
|
encodableImages[val] = false;
|
|
}
|
|
last_good_img_url = val;
|
|
if(callback) callback(encodableImages[val]);
|
|
}).attr('src',val);
|
|
}
|
|
|
|
// importNode, like cloneNode, causes the comma-to-period
|
|
// issue in Opera/Win/non-en. Thankfully we can compare to the original XML
|
|
// and simply use the original value when necessary
|
|
this.fixOperaXML = function(elem, orig_el) {
|
|
var x_attrs = elem.attributes;
|
|
$.each(x_attrs, function(i, attr) {
|
|
if(attr.nodeValue.indexOf(',') == -1) return;
|
|
// attr val has comma, so let's get the good value
|
|
var ns = attr.prefix == 'xlink' ? xlinkns :
|
|
attr.prefix == "xml" ? xmlns : null;
|
|
var good_attrval = orig_el.getAttribute(attr.localName);
|
|
if(ns) {
|
|
elem.setAttributeNS(ns, attr.nodeName, good_attrval);
|
|
} else {
|
|
elem.setAttribute(attr.nodeName, good_attrval);
|
|
}
|
|
});
|
|
|
|
var childs = elem.childNodes;
|
|
var o_childs = orig_el.childNodes;
|
|
$.each(childs, function(i, child) {
|
|
if(child.nodeType == 1) {
|
|
canvas.fixOperaXML(child, o_childs[i]);
|
|
}
|
|
});
|
|
}
|
|
|
|
var recalculateAllSelectedDimensions = function() {
|
|
var text = (current_resize_mode == "none" ? "position" : "size");
|
|
var batchCmd = new BatchCommand(text);
|
|
|
|
var i = selectedElements.length;
|
|
while(i--) {
|
|
var cmd = recalculateDimensions(selectedElements[i]);
|
|
if (cmd) {
|
|
batchCmd.addSubCommand(cmd);
|
|
}
|
|
}
|
|
|
|
if (!batchCmd.isEmpty()) {
|
|
addCommandToHistory(batchCmd);
|
|
call("changed", selectedElements);
|
|
}
|
|
};
|
|
|
|
// this is how we map paths to our preferred relative segment types
|
|
var pathMap = [0, 'z', 'M', 'm', 'L', 'l', 'C', 'c', 'Q', 'q', 'A', 'a',
|
|
'H', 'h', 'V', 'v', 'S', 's', 'T', 't'];
|
|
|
|
var logMatrix = function(m) {
|
|
console.log([m.a,m.b,m.c,m.d,m.e,m.f]);
|
|
};
|
|
|
|
var remapElement = function(selected,changes,m) {
|
|
var remap = function(x,y) { return transformPoint(x,y,m); },
|
|
scalew = function(w) { return m.a*w; },
|
|
scaleh = function(h) { return m.d*h; },
|
|
box = canvas.getBBox(selected);
|
|
|
|
switch (selected.tagName)
|
|
{
|
|
case "line":
|
|
var pt1 = remap(changes["x1"],changes["y1"]),
|
|
pt2 = remap(changes["x2"],changes["y2"]);
|
|
changes["x1"] = pt1.x;
|
|
changes["y1"] = pt1.y;
|
|
changes["x2"] = pt2.x;
|
|
changes["y2"] = pt2.y;
|
|
break;
|
|
case "circle":
|
|
var c = remap(changes["cx"],changes["cy"]);
|
|
changes["cx"] = c.x;
|
|
changes["cy"] = c.y;
|
|
// take the minimum of the new selected box's dimensions for the new circle radius
|
|
var tbox = transformBox(box.x, box.y, box.width, box.height, m);
|
|
var w = tbox.tr.x - tbox.tl.x, h = tbox.bl.y - tbox.tl.y;
|
|
changes["r"] = Math.min(w/2, h/2);
|
|
break;
|
|
case "ellipse":
|
|
var c = remap(changes["cx"],changes["cy"]);
|
|
changes["cx"] = c.x;
|
|
changes["cy"] = c.y;
|
|
changes["rx"] = scalew(changes["rx"]);
|
|
changes["ry"] = scaleh(changes["ry"]);
|
|
break;
|
|
case "foreignObject":
|
|
case "rect":
|
|
case "image":
|
|
var pt1 = remap(changes["x"],changes["y"]);
|
|
changes["x"] = pt1.x;
|
|
changes["y"] = pt1.y;
|
|
changes["width"] = scalew(changes["width"]);
|
|
changes["height"] = scaleh(changes["height"]);
|
|
break;
|
|
case "use":
|
|
var pt1 = remap(changes["x"],changes["y"]);
|
|
changes["x"] = pt1.x;
|
|
changes["y"] = pt1.y;
|
|
break;
|
|
case "text":
|
|
// if it was a translate, then just update x,y
|
|
if (m.a == 1 && m.b == 0 && m.c == 0 && m.d == 1 &&
|
|
(m.e != 0 || m.f != 0) )
|
|
{
|
|
// [T][M] = [M][T']
|
|
// therefore [T'] = [M_inv][T][M]
|
|
var existing = transformListToTransform(selected).matrix,
|
|
t_new = matrixMultiply(existing.inverse(), m, existing);
|
|
changes["x"] = parseFloat(changes["x"]) + t_new.e;
|
|
changes["y"] = parseFloat(changes["y"]) + t_new.f;
|
|
}
|
|
else {
|
|
// we just absorb all matrices into the element and don't do any remapping
|
|
var chlist = canvas.getTransformList(selected);
|
|
var mt = svgroot.createSVGTransform();
|
|
mt.setMatrix(matrixMultiply(transformListToTransform(chlist).matrix,m));
|
|
chlist.clear();
|
|
chlist.appendItem(mt);
|
|
}
|
|
break;
|
|
case "polygon":
|
|
case "polyline":
|
|
var len = changes["points"].length;
|
|
for (var i = 0; i < len; ++i) {
|
|
var pt = changes["points"][i];
|
|
pt = remap(pt.x,pt.y);
|
|
changes["points"][i].x = pt.x;
|
|
changes["points"][i].y = pt.y;
|
|
}
|
|
break;
|
|
case "path":
|
|
var segList = selected.pathSegList;
|
|
var len = segList.numberOfItems;
|
|
changes.d = new Array(len);
|
|
for (var i = 0; i < len; ++i) {
|
|
var seg = segList.getItem(i);
|
|
changes.d[i] = {
|
|
type: seg.pathSegType,
|
|
x: seg.x,
|
|
y: seg.y,
|
|
x1: seg.x1,
|
|
y1: seg.y1,
|
|
x2: seg.x2,
|
|
y2: seg.y2,
|
|
r1: seg.r1,
|
|
r2: seg.r2,
|
|
angle: seg.angle,
|
|
largeArcFlag: seg.largeArcFlag,
|
|
sweepFlag: seg.sweepFlag
|
|
};
|
|
}
|
|
|
|
var len = changes["d"].length,
|
|
firstseg = changes["d"][0],
|
|
currentpt = remap(firstseg.x,firstseg.y);
|
|
changes["d"][0].x = currentpt.x;
|
|
changes["d"][0].y = currentpt.y;
|
|
for (var i = 1; i < len; ++i) {
|
|
var seg = changes["d"][i];
|
|
var type = seg.type;
|
|
// if absolute or first segment, we want to remap x, y, x1, y1, x2, y2
|
|
// if relative, we want to scalew, scaleh
|
|
if (type % 2 == 0) { // absolute
|
|
var thisx = (seg.x != undefined) ? seg.x : currentpt.x, // for V commands
|
|
thisy = (seg.y != undefined) ? seg.y : currentpt.y, // for H commands
|
|
pt = remap(thisx,thisy),
|
|
pt1 = remap(seg.x1,seg.y1),
|
|
pt2 = remap(seg.x2,seg.y2);
|
|
seg.x = pt.x;
|
|
seg.y = pt.y;
|
|
seg.x1 = pt1.x;
|
|
seg.y1 = pt1.y;
|
|
seg.x2 = pt2.x;
|
|
seg.y2 = pt2.y;
|
|
seg.r1 = scalew(seg.r1),
|
|
seg.r2 = scaleh(seg.r2);
|
|
}
|
|
else { // relative
|
|
seg.x = scalew(seg.x);
|
|
seg.y = scaleh(seg.y);
|
|
seg.x1 = scalew(seg.x1);
|
|
seg.y1 = scaleh(seg.y1);
|
|
seg.x2 = scalew(seg.x2);
|
|
seg.y2 = scaleh(seg.y2);
|
|
seg.r1 = scalew(seg.r1),
|
|
seg.r2 = scaleh(seg.r2);
|
|
}
|
|
// tracks the current position (for H,V commands)
|
|
if (seg.x) currentpt.x = seg.x;
|
|
if (seg.y) currentpt.y = seg.y;
|
|
} // for each segment
|
|
break;
|
|
} // switch on element type to get initial values
|
|
|
|
// now we have a set of changes and an applied reduced transform list
|
|
// we apply the changes directly to the DOM
|
|
// TODO: merge this switch with the above one and optimize
|
|
switch (selected.tagName)
|
|
{
|
|
case "foreignObject":
|
|
case "rect":
|
|
case "image":
|
|
changes.x = changes.x-0 + Math.min(0,changes.width);
|
|
changes.y = changes.y-0 + Math.min(0,changes.height);
|
|
changes.width = Math.abs(changes.width);
|
|
changes.height = Math.abs(changes.height);
|
|
assignAttributes(selected, changes, 1000, true);
|
|
break;
|
|
case "use":
|
|
assignAttributes(selected, changes, 1000, true);
|
|
break;
|
|
case "ellipse":
|
|
changes.rx = Math.abs(changes.rx);
|
|
changes.ry = Math.abs(changes.ry);
|
|
case "circle":
|
|
if(changes.r) changes.r = Math.abs(changes.r);
|
|
case "line":
|
|
case "text":
|
|
assignAttributes(selected, changes, 1000, true);
|
|
break;
|
|
case "polyline":
|
|
case "polygon":
|
|
var len = changes["points"].length;
|
|
var pstr = "";
|
|
for (var i = 0; i < len; ++i) {
|
|
var pt = changes["points"][i];
|
|
pstr += pt.x + "," + pt.y + " ";
|
|
}
|
|
selected.setAttribute("points", pstr);
|
|
break;
|
|
case "path":
|
|
var dstr = "";
|
|
var len = changes["d"].length;
|
|
for (var i = 0; i < len; ++i) {
|
|
var seg = changes["d"][i];
|
|
var type = seg.type;
|
|
dstr += pathMap[type];
|
|
switch(type) {
|
|
case 13: // relative horizontal line (h)
|
|
case 12: // absolute horizontal line (H)
|
|
dstr += seg.x + " ";
|
|
break;
|
|
case 15: // relative vertical line (v)
|
|
case 14: // absolute vertical line (V)
|
|
dstr += seg.y + " ";
|
|
break;
|
|
case 3: // relative move (m)
|
|
case 5: // relative line (l)
|
|
case 19: // relative smooth quad (t)
|
|
case 2: // absolute move (M)
|
|
case 4: // absolute line (L)
|
|
case 18: // absolute smooth quad (T)
|
|
dstr += seg.x + "," + seg.y + " ";
|
|
break;
|
|
case 7: // relative cubic (c)
|
|
case 6: // absolute cubic (C)
|
|
dstr += seg.x1 + "," + seg.y1 + " " + seg.x2 + "," + seg.y2 + " " +
|
|
seg.x + "," + seg.y + " ";
|
|
break;
|
|
case 9: // relative quad (q)
|
|
case 8: // absolute quad (Q)
|
|
dstr += seg.x + "," + seg.y + " " + seg.x1 + "," + seg.y1 + " ";
|
|
break;
|
|
case 11: // relative elliptical arc (a)
|
|
case 10: // absolute elliptical arc (A)
|
|
dstr += seg.r1 + "," + seg.r2 + " " + seg.angle + " " + Number(seg.largeArcFlag) +
|
|
" " + Number(seg.sweepFlag) + " " + seg.x + "," + seg.y + " ";
|
|
break;
|
|
case 17: // relative smooth cubic (s)
|
|
case 16: // absolute smooth cubic (S)
|
|
dstr += seg.x + "," + seg.y + " " + seg.x2 + "," + seg.y2 + " ";
|
|
break;
|
|
}
|
|
}
|
|
selected.setAttribute("d", dstr);
|
|
break;
|
|
}
|
|
|
|
};
|
|
|
|
// this function returns the command which resulted from the selected change
|
|
// TODO: use suspendRedraw() and unsuspendRedraw() around this function
|
|
var recalculateDimensions = function(selected) {
|
|
if (selected == null) return null;
|
|
|
|
var tlist = canvas.getTransformList(selected);
|
|
|
|
// remove any unnecessary transforms
|
|
if (tlist && tlist.numberOfItems > 0) {
|
|
var k = tlist.numberOfItems;
|
|
while (k--) {
|
|
var xform = tlist.getItem(k);
|
|
if (xform.type == 0) {
|
|
tlist.removeItem(k);
|
|
}
|
|
// remove identity matrices
|
|
else if (xform.type == 1) {
|
|
if (isIdentity(xform.matrix)) {
|
|
tlist.removeItem(k);
|
|
}
|
|
}
|
|
// remove zero-degree rotations
|
|
else if (xform.type == 4) {
|
|
if (xform.angle == 0) {
|
|
tlist.removeItem(k);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// if this element had no transforms, we are done
|
|
if (!tlist || tlist.numberOfItems == 0) {
|
|
selected.removeAttribute("transform");
|
|
return null;
|
|
}
|
|
|
|
// we know we have some transforms, so set up return variable
|
|
var batchCmd = new BatchCommand("Transform");
|
|
|
|
// store initial values that will be affected by reducing the transform list
|
|
var changes = {}, initial = null, attrs = [];
|
|
switch (selected.tagName)
|
|
{
|
|
case "line":
|
|
attrs = ["x1", "y1", "x2", "y2"];
|
|
break;
|
|
case "circle":
|
|
attrs = ["cx", "cy", "r"];
|
|
break;
|
|
case "ellipse":
|
|
attrs = ["cx", "cy", "rx", "ry"];
|
|
break;
|
|
case "foreignObject":
|
|
case "rect":
|
|
case "image":
|
|
attrs = ["width", "height", "x", "y"];
|
|
break;
|
|
case "use":
|
|
attrs = ["x", "y"];
|
|
break;
|
|
case "text":
|
|
attrs = ["x", "y"];
|
|
break;
|
|
case "polygon":
|
|
case "polyline":
|
|
initial = {};
|
|
initial["points"] = selected.getAttribute("points");
|
|
var list = selected.points;
|
|
var len = list.numberOfItems;
|
|
changes["points"] = new Array(len);
|
|
for (var i = 0; i < len; ++i) {
|
|
var pt = list.getItem(i);
|
|
changes["points"][i] = {x:pt.x,y:pt.y};
|
|
}
|
|
break;
|
|
case "path":
|
|
initial = {};
|
|
initial["d"] = selected.getAttribute("d");
|
|
changes["d"] = selected.getAttribute("d");
|
|
break;
|
|
} // switch on element type to get initial values
|
|
|
|
if(attrs.length) {
|
|
changes = $(selected).attr(attrs);
|
|
$.each(changes, function(attr, val) {
|
|
changes[attr] = convertToNum(attr, val);
|
|
});
|
|
}
|
|
|
|
// if we haven't created an initial array in polygon/polyline/path, then
|
|
// make a copy of initial values and include the transform
|
|
if (initial == null) {
|
|
initial = $.extend(true, {}, changes);
|
|
$.each(initial, function(attr, val) {
|
|
initial[attr] = convertToNum(attr, val);
|
|
});
|
|
}
|
|
// save the start transform value too
|
|
initial["transform"] = start_transform ? start_transform : "";
|
|
|
|
// if it's a group, we have special processing to flatten transforms
|
|
if (selected.tagName == "g" || selected.tagName == "a") {
|
|
var box = canvas.getBBox(selected),
|
|
oldcenter = {x: box.x+box.width/2, y: box.y+box.height/2},
|
|
newcenter = transformPoint(box.x+box.width/2, box.y+box.height/2,
|
|
transformListToTransform(tlist).matrix),
|
|
m = svgroot.createSVGMatrix();
|
|
|
|
// temporarily strip off the rotate and save the old center
|
|
var gangle = canvas.getRotationAngle(selected);
|
|
if (gangle) {
|
|
var a = gangle * Math.PI / 180;
|
|
if ( Math.abs(a) > (1.0e-10) ) {
|
|
var s = Math.sin(a)/(1 - Math.cos(a));
|
|
} else {
|
|
// FIXME: This blows up if the angle is exactly 0!
|
|
var s = 2/a;
|
|
}
|
|
for (var i = 0; i < tlist.numberOfItems; ++i) {
|
|
var xform = tlist.getItem(i);
|
|
if (xform.type == 4) {
|
|
// extract old center through mystical arts
|
|
var rm = xform.matrix;
|
|
oldcenter.y = (s*rm.e + rm.f)/2;
|
|
oldcenter.x = (rm.e - s*rm.f)/2;
|
|
tlist.removeItem(i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
var tx = 0, ty = 0,
|
|
operation = 0,
|
|
N = tlist.numberOfItems;
|
|
|
|
// first, if it was a scale then the second-last transform will be it
|
|
if (N >= 3 && tlist.getItem(N-2).type == 3 &&
|
|
tlist.getItem(N-3).type == 2 && tlist.getItem(N-1).type == 2)
|
|
{
|
|
operation = 3; // scale
|
|
|
|
// if the children are unrotated, pass the scale down directly
|
|
// otherwise pass the equivalent matrix() down directly
|
|
var tm = tlist.getItem(N-3).matrix,
|
|
sm = tlist.getItem(N-2).matrix,
|
|
tmn = tlist.getItem(N-1).matrix;
|
|
|
|
var children = selected.childNodes;
|
|
var c = children.length;
|
|
while (c--) {
|
|
var child = children.item(c);
|
|
tx = 0;
|
|
ty = 0;
|
|
if (child.nodeType == 1) {
|
|
var childTlist = canvas.getTransformList(child);
|
|
var m = transformListToTransform(childTlist).matrix;
|
|
|
|
var angle = canvas.getRotationAngle(child);
|
|
var old_start_transform = start_transform;
|
|
start_transform = child.getAttribute("transform");
|
|
if(angle || hasMatrixTransform(childTlist)) {
|
|
var e2t = svgroot.createSVGTransform();
|
|
e2t.setMatrix(matrixMultiply(tm, sm, tmn, m));
|
|
childTlist.clear();
|
|
childTlist.appendItem(e2t,0);
|
|
}
|
|
// if not rotated or skewed, push the [T][S][-T] down to the child
|
|
else {
|
|
// update the transform list with translate,scale,translate
|
|
|
|
// slide the [T][S][-T] from the front to the back
|
|
// [T][S][-T][M] = [M][T2][S2][-T2]
|
|
|
|
// [T][S][-T][M] = [T][S][M][-T2]
|
|
// [-T2] = [M_inv][-T][M]
|
|
var t2n = matrixMultiply(m.inverse(), tmn, m);
|
|
// [T2] is always negative translation of [-T2]
|
|
var t2 = svgroot.createSVGMatrix();
|
|
t2.e = -t2n.e;
|
|
t2.f = -t2n.f;
|
|
|
|
// [T][S][-T][M] = [M][T2][S2][-T2]
|
|
// [S2] = [T2_inv][M_inv][T][S][-T][M][-T2_inv]
|
|
var s2 = matrixMultiply(t2.inverse(), m.inverse(), tm, sm, tmn, m, t2n.inverse());
|
|
|
|
var translateOrigin = svgroot.createSVGTransform(),
|
|
scale = svgroot.createSVGTransform(),
|
|
translateBack = svgroot.createSVGTransform();
|
|
translateOrigin.setTranslate(t2n.e, t2n.f);
|
|
scale.setScale(s2.a, s2.d);
|
|
translateBack.setTranslate(t2.e, t2.f);
|
|
childTlist.appendItem(translateBack);
|
|
childTlist.appendItem(scale);
|
|
childTlist.appendItem(translateOrigin);
|
|
} // not rotated
|
|
batchCmd.addSubCommand( recalculateDimensions(child) );
|
|
start_transform = old_start_transform;
|
|
} // element
|
|
} // for each child
|
|
// Remove these transforms from group
|
|
tlist.removeItem(N-1);
|
|
tlist.removeItem(N-2);
|
|
tlist.removeItem(N-3);
|
|
}
|
|
else if (N >= 3 && tlist.getItem(N-1).type == 1)
|
|
{
|
|
operation = 3; // scale
|
|
m = transformListToTransform(tlist).matrix;
|
|
var e2t = svgroot.createSVGTransform();
|
|
e2t.setMatrix(m);
|
|
tlist.clear();
|
|
tlist.appendItem(e2t);
|
|
}
|
|
// next, check if the first transform was a translate
|
|
// if we had [ T1 ] [ M ] we want to transform this into [ M ] [ T2 ]
|
|
// therefore [ T2 ] = [ M_inv ] [ T1 ] [ M ]
|
|
else if ( (N == 1 || (N > 1 && tlist.getItem(1).type != 3)) &&
|
|
tlist.getItem(0).type == 2)
|
|
{
|
|
operation = 2; // translate
|
|
var T_M = transformListToTransform(tlist).matrix;
|
|
tlist.removeItem(0);
|
|
var M_inv = transformListToTransform(tlist).matrix.inverse();
|
|
var M2 = matrixMultiply( M_inv, T_M );
|
|
|
|
tx = M2.e;
|
|
ty = M2.f;
|
|
|
|
if (tx != 0 || ty != 0) {
|
|
// we pass the translates down to the individual children
|
|
var children = selected.childNodes;
|
|
var c = children.length;
|
|
while (c--) {
|
|
var child = children.item(c);
|
|
if (child.nodeType == 1) {
|
|
var old_start_transform = start_transform;
|
|
start_transform = child.getAttribute("transform");
|
|
|
|
var childTlist = canvas.getTransformList(child);
|
|
// some children might not have a transform (<metadata>, <defs>, etc)
|
|
if (childTlist) {
|
|
var newxlate = svgroot.createSVGTransform();
|
|
newxlate.setTranslate(tx,ty);
|
|
childTlist.insertItemBefore(newxlate, 0);
|
|
batchCmd.addSubCommand( recalculateDimensions(child) );
|
|
start_transform = old_start_transform;
|
|
}
|
|
}
|
|
}
|
|
start_transform = old_start_transform;
|
|
}
|
|
}
|
|
// else, a matrix imposition from a parent group
|
|
// keep pushing it down to the children
|
|
else if (N == 1 && tlist.getItem(0).type == 1 && !gangle) {
|
|
operation = 1;
|
|
var m = tlist.getItem(0).matrix,
|
|
children = selected.childNodes,
|
|
c = children.length;
|
|
while (c--) {
|
|
var child = children.item(c);
|
|
if (child.nodeType == 1) {
|
|
var old_start_transform = start_transform;
|
|
start_transform = child.getAttribute("transform");
|
|
var childTlist = canvas.getTransformList(child);
|
|
|
|
var em = matrixMultiply(m, transformListToTransform(childTlist).matrix);
|
|
var e2m = svgroot.createSVGTransform();
|
|
e2m.setMatrix(em);
|
|
childTlist.clear();
|
|
childTlist.appendItem(e2m,0);
|
|
|
|
batchCmd.addSubCommand( recalculateDimensions(child) );
|
|
start_transform = old_start_transform;
|
|
}
|
|
}
|
|
tlist.clear();
|
|
}
|
|
// else it was just a rotate
|
|
else {
|
|
if (gangle) {
|
|
var newRot = svgroot.createSVGTransform();
|
|
newRot.setRotate(gangle,newcenter.x,newcenter.y);
|
|
tlist.insertItemBefore(newRot, 0);
|
|
}
|
|
if (tlist.numberOfItems == 0) {
|
|
selected.removeAttribute("transform");
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// if it was a translate, put back the rotate at the new center
|
|
if (operation == 2) {
|
|
if (gangle) {
|
|
var newRot = svgroot.createSVGTransform();
|
|
newRot.setRotate(gangle,newcenter.x,newcenter.y);
|
|
tlist.insertItemBefore(newRot, 0);
|
|
}
|
|
}
|
|
// if it was a resize
|
|
else if (operation == 3) {
|
|
var m = transformListToTransform(tlist).matrix;
|
|
var roldt = svgroot.createSVGTransform();
|
|
roldt.setRotate(gangle, oldcenter.x, oldcenter.y);
|
|
var rold = roldt.matrix;
|
|
var rnew = svgroot.createSVGTransform();
|
|
rnew.setRotate(gangle, newcenter.x, newcenter.y);
|
|
var rnew_inv = rnew.matrix.inverse(),
|
|
m_inv = m.inverse(),
|
|
extrat = matrixMultiply(m_inv, rnew_inv, rold, m);
|
|
|
|
tx = extrat.e;
|
|
ty = extrat.f;
|
|
|
|
if (tx != 0 || ty != 0) {
|
|
// now push this transform down to the children
|
|
// we pass the translates down to the individual children
|
|
var children = selected.childNodes;
|
|
var c = children.length;
|
|
while (c--) {
|
|
var child = children.item(c);
|
|
if (child.nodeType == 1) {
|
|
var old_start_transform = start_transform;
|
|
start_transform = child.getAttribute("transform");
|
|
var childTlist = canvas.getTransformList(child);
|
|
var newxlate = svgroot.createSVGTransform();
|
|
newxlate.setTranslate(tx,ty);
|
|
childTlist.insertItemBefore(newxlate, 0);
|
|
batchCmd.addSubCommand( recalculateDimensions(child) );
|
|
start_transform = old_start_transform;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (gangle) {
|
|
tlist.insertItemBefore(rnew, 0);
|
|
}
|
|
}
|
|
}
|
|
// else, it's a non-group
|
|
else {
|
|
// FIXME: box might be null for some elements (<metadata> etc), need to handle this
|
|
var box = canvas.getBBox(selected),
|
|
oldcenter = {x: box.x+box.width/2, y: box.y+box.height/2},
|
|
newcenter = transformPoint(box.x+box.width/2, box.y+box.height/2,
|
|
transformListToTransform(tlist).matrix),
|
|
m = svgroot.createSVGMatrix(),
|
|
// temporarily strip off the rotate and save the old center
|
|
angle = canvas.getRotationAngle(selected);
|
|
if (angle) {
|
|
var a = angle * Math.PI / 180;
|
|
if ( Math.abs(a) > (1.0e-10) ) {
|
|
var s = Math.sin(a)/(1 - Math.cos(a));
|
|
} else {
|
|
// FIXME: This blows up if the angle is exactly 0!
|
|
var s = 2/a;
|
|
}
|
|
for (var i = 0; i < tlist.numberOfItems; ++i) {
|
|
var xform = tlist.getItem(i);
|
|
if (xform.type == 4) {
|
|
// extract old center through mystical arts
|
|
var rm = xform.matrix;
|
|
oldcenter.y = (s*rm.e + rm.f)/2;
|
|
oldcenter.x = (rm.e - s*rm.f)/2;
|
|
tlist.removeItem(i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// 2 = translate, 3 = scale, 4 = rotate, 1 = matrix imposition
|
|
var operation = 0;
|
|
var N = tlist.numberOfItems;
|
|
|
|
// first, if it was a scale of a non-skewed element, then the second-last
|
|
// transform will be the [S]
|
|
// if we had [M][T][S][T] we want to extract the matrix equivalent of
|
|
// [T][S][T] and push it down to the element
|
|
if (N >= 3 && tlist.getItem(N-2).type == 3 &&
|
|
tlist.getItem(N-3).type == 2 && tlist.getItem(N-1).type == 2 &&
|
|
selected.nodeName != "use")
|
|
{
|
|
operation = 3; // scale
|
|
m = transformListToTransform(tlist,N-3,N-1).matrix;
|
|
tlist.removeItem(N-1);
|
|
tlist.removeItem(N-2);
|
|
tlist.removeItem(N-3);
|
|
} // if we had [T][S][-T][M], then this was a skewed element being resized
|
|
// Thus, we simply combine it all into one matrix
|
|
else if(N == 4 && tlist.getItem(N-1).type == 1) {
|
|
operation = 3; // scale
|
|
m = transformListToTransform(tlist).matrix;
|
|
var e2t = svgroot.createSVGTransform();
|
|
e2t.setMatrix(m);
|
|
tlist.clear();
|
|
tlist.appendItem(e2t);
|
|
// reset the matrix so that the element is not re-mapped
|
|
m = svgroot.createSVGMatrix();
|
|
} // if we had [R][T][S][-T][M], then this was a rotated matrix-element
|
|
// if we had [T1][M] we want to transform this into [M][T2]
|
|
// therefore [ T2 ] = [ M_inv ] [ T1 ] [ M ] and we can push [T2]
|
|
// down to the element
|
|
else if ( (N == 1 || (N > 1 && tlist.getItem(1).type != 3)) &&
|
|
tlist.getItem(0).type == 2)
|
|
{
|
|
operation = 2; // translate
|
|
var oldxlate = tlist.getItem(0).matrix,
|
|
meq = transformListToTransform(tlist,1).matrix,
|
|
meq_inv = meq.inverse();
|
|
m = matrixMultiply( meq_inv, oldxlate, meq );
|
|
tlist.removeItem(0);
|
|
}
|
|
// else if this child now has a matrix imposition (from a parent group)
|
|
// we might be able to simplify
|
|
else if (N == 1 && tlist.getItem(0).type == 1 && !angle) {
|
|
// Remap all point-based elements
|
|
m = transformListToTransform(tlist).matrix;
|
|
switch (selected.tagName) {
|
|
case 'line':
|
|
changes = $(selected).attr(["x1","y1","x2","y2"]);
|
|
case 'polyline':
|
|
case 'polygon':
|
|
changes.points = selected.getAttribute("points");
|
|
if(changes.points) {
|
|
var list = selected.points;
|
|
var len = list.numberOfItems;
|
|
changes.points = new Array(len);
|
|
for (var i = 0; i < len; ++i) {
|
|
var pt = list.getItem(i);
|
|
changes.points[i] = {x:pt.x,y:pt.y};
|
|
}
|
|
}
|
|
case 'path':
|
|
changes.d = selected.getAttribute("d");
|
|
operation = 1;
|
|
tlist.clear();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
// if it was a rotation, put the rotate back and return without a command
|
|
// (this function has zero work to do for a rotate())
|
|
else {
|
|
operation = 4; // rotation
|
|
if (angle) {
|
|
var newRot = svgroot.createSVGTransform();
|
|
newRot.setRotate(angle,newcenter.x,newcenter.y);
|
|
tlist.insertItemBefore(newRot, 0);
|
|
}
|
|
if (tlist.numberOfItems == 0) {
|
|
selected.removeAttribute("transform");
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// if it was a translate or resize, we need to remap the element and absorb the xform
|
|
if (operation == 1 || operation == 2 || operation == 3) {
|
|
remapElement(selected,changes,m);
|
|
} // if we are remapping
|
|
|
|
// if it was a translate, put back the rotate at the new center
|
|
if (operation == 2) {
|
|
if (angle) {
|
|
var newRot = svgroot.createSVGTransform();
|
|
newRot.setRotate(angle,newcenter.x,newcenter.y);
|
|
tlist.insertItemBefore(newRot, 0);
|
|
}
|
|
}
|
|
// [Rold][M][T][S][-T] became [Rold][M]
|
|
// we want it to be [Rnew][M][Tr] where Tr is the
|
|
// translation required to re-center it
|
|
// Therefore, [Tr] = [M_inv][Rnew_inv][Rold][M]
|
|
else if (operation == 3) {
|
|
var m = transformListToTransform(tlist).matrix;
|
|
var roldt = svgroot.createSVGTransform();
|
|
roldt.setRotate(angle, oldcenter.x, oldcenter.y);
|
|
var rold = roldt.matrix;
|
|
var rnew = svgroot.createSVGTransform();
|
|
rnew.setRotate(angle, newcenter.x, newcenter.y);
|
|
var rnew_inv = rnew.matrix.inverse();
|
|
var m_inv = m.inverse();
|
|
var extrat = matrixMultiply(m_inv, rnew_inv, rold, m);
|
|
|
|
remapElement(selected,changes,extrat);
|
|
if (angle) {
|
|
tlist.insertItemBefore(rnew,0);
|
|
}
|
|
}
|
|
} // a non-group
|
|
|
|
// if the transform list has been emptied, remove it
|
|
if (tlist.numberOfItems == 0) {
|
|
selected.removeAttribute("transform");
|
|
}
|
|
batchCmd.addSubCommand(new ChangeElementCommand(selected, initial));
|
|
|
|
return batchCmd;
|
|
};
|
|
|
|
// public events
|
|
|
|
// Group: Selection
|
|
|
|
// Function: clearSelection
|
|
// Clears the selection. The 'selected' handler is then called.
|
|
this.clearSelection = function() {
|
|
if (selectedElements[0] != null) {
|
|
var len = selectedElements.length;
|
|
for (var i = 0; i < len; ++i) {
|
|
var elem = selectedElements[i];
|
|
if (elem == null) break;
|
|
selectorManager.releaseSelector(elem);
|
|
selectedElements[i] = null;
|
|
}
|
|
selectedBBoxes[0] = null;
|
|
}
|
|
call("selected", selectedElements);
|
|
};
|
|
|
|
// TODO: do we need to worry about selectedBBoxes here?
|
|
|
|
// Function: addToSelection
|
|
// Adds a list of elements to the selection. The 'selected' handler is then called.
|
|
//
|
|
// Parameters:
|
|
// elemsToAdd - an array of DOM elements to add to the selection
|
|
// showGrips - a boolean flag indicating whether the resize grips should be shown
|
|
this.addToSelection = function(elemsToAdd, showGrips) {
|
|
if (elemsToAdd.length == 0) { return; }
|
|
// find the first null in our selectedElements array
|
|
var j = 0;
|
|
while (j < selectedElements.length) {
|
|
if (selectedElements[j] == null) {
|
|
break;
|
|
}
|
|
++j;
|
|
}
|
|
|
|
// now add each element consecutively
|
|
var i = elemsToAdd.length;
|
|
while (i--) {
|
|
var elem = elemsToAdd[i];
|
|
// we ignore any selectors
|
|
if (!elem || elem.id.substr(0,13) == "selectorGrip_" || !this.getBBox(elem)) continue;
|
|
// if it's not already there, add it
|
|
if (selectedElements.indexOf(elem) == -1) {
|
|
selectedElements[j] = elem;
|
|
// only the first selectedBBoxes element is ever used in the codebase these days
|
|
if (j == 0) selectedBBoxes[j] = this.getBBox(elem);
|
|
j++;
|
|
var sel = selectorManager.requestSelector(elem);
|
|
|
|
if (selectedElements.length > 1) {
|
|
sel.showGrips(false);
|
|
}
|
|
}
|
|
}
|
|
call("selected", selectedElements);
|
|
|
|
if (showGrips || selectedElements.length == 1) {
|
|
selectorManager.requestSelector(selectedElements[0]).showGrips(true);
|
|
}
|
|
else {
|
|
selectorManager.requestSelector(selectedElements[0]).showGrips(false);
|
|
}
|
|
|
|
// make sure the elements are in the correct order
|
|
// See: http://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-compareDocumentPosition
|
|
|
|
selectedElements.sort(function(a,b) {
|
|
if(a && b && a.compareDocumentPosition) {
|
|
return 3 - (b.compareDocumentPosition(a) & 6);
|
|
} else if(a == null) {
|
|
return 1;
|
|
}
|
|
});
|
|
|
|
// Make sure first elements are not null
|
|
while(selectedElements[0] == null) selectedElements.shift(0);
|
|
};
|
|
|
|
// TODO: could use slice here to make this faster?
|
|
// TODO: should the 'selected' handler
|
|
|
|
// Function: removeFromSelection
|
|
// Removes elements from the selection.
|
|
//
|
|
// Parameters:
|
|
// elemsToRemove - an array of elements to remove from selection
|
|
this.removeFromSelection = function(elemsToRemove) {
|
|
if (selectedElements[0] == null) { return; }
|
|
if (elemsToRemove.length == 0) { return; }
|
|
|
|
// find every element and remove it from our array copy
|
|
var newSelectedItems = new Array(selectedElements.length),
|
|
newSelectedBBoxes = new Array(selectedBBoxes.length),
|
|
j = 0,
|
|
len = selectedElements.length;
|
|
for (var i = 0; i < len; ++i) {
|
|
var elem = selectedElements[i];
|
|
if (elem) {
|
|
// keep the item
|
|
if (elemsToRemove.indexOf(elem) == -1) {
|
|
newSelectedItems[j] = elem;
|
|
if (j==0) newSelectedBBoxes[j] = selectedBBoxes[i];
|
|
j++;
|
|
}
|
|
else { // remove the item and its selector
|
|
selectorManager.releaseSelector(elem);
|
|
}
|
|
}
|
|
}
|
|
// the copy becomes the master now
|
|
selectedElements = newSelectedItems;
|
|
selectedBBoxes = newSelectedBBoxes;
|
|
};
|
|
|
|
// Some global variables that we may need to refactor
|
|
var root_sctm = null;
|
|
|
|
// A (hopefully) quicker function to transform a point by a matrix
|
|
// (this function avoids any DOM calls and just does the math)
|
|
// Returns a x,y object representing the transformed point
|
|
var transformPoint = function(x, y, m) {
|
|
return { x: m.a * x + m.c * y + m.e, y: m.b * x + m.d * y + m.f};
|
|
};
|
|
|
|
var isIdentity = function(m) {
|
|
return (m.a == 1 && m.b == 0 && m.c == 0 && m.d == 1 && m.e == 0 && m.f == 0);
|
|
}
|
|
|
|
// expects three points to be sent, each point must have an x,y field
|
|
// returns an array of two points that are the smoothed
|
|
this.smoothControlPoints = function(ct1, ct2, pt) {
|
|
// each point must not be the origin
|
|
var x1 = ct1.x - pt.x,
|
|
y1 = ct1.y - pt.y,
|
|
x2 = ct2.x - pt.x,
|
|
y2 = ct2.y - pt.y;
|
|
|
|
if ( (x1 != 0 || y1 != 0) && (x2 != 0 || y2 != 0) ) {
|
|
var anglea = Math.atan2(y1,x1),
|
|
angleb = Math.atan2(y2,x2),
|
|
r1 = Math.sqrt(x1*x1+y1*y1),
|
|
r2 = Math.sqrt(x2*x2+y2*y2),
|
|
nct1 = svgroot.createSVGPoint(),
|
|
nct2 = svgroot.createSVGPoint();
|
|
if (anglea < 0) { anglea += 2*Math.PI; }
|
|
if (angleb < 0) { angleb += 2*Math.PI; }
|
|
|
|
var angleBetween = Math.abs(anglea - angleb),
|
|
angleDiff = Math.abs(Math.PI - angleBetween)/2;
|
|
|
|
var new_anglea, new_angleb;
|
|
if (anglea - angleb > 0) {
|
|
new_anglea = angleBetween < Math.PI ? (anglea + angleDiff) : (anglea - angleDiff);
|
|
new_angleb = angleBetween < Math.PI ? (angleb - angleDiff) : (angleb + angleDiff);
|
|
}
|
|
else {
|
|
new_anglea = angleBetween < Math.PI ? (anglea - angleDiff) : (anglea + angleDiff);
|
|
new_angleb = angleBetween < Math.PI ? (angleb + angleDiff) : (angleb - angleDiff);
|
|
}
|
|
|
|
// rotate the points
|
|
nct1.x = r1 * Math.cos(new_anglea) + pt.x;
|
|
nct1.y = r1 * Math.sin(new_anglea) + pt.y;
|
|
nct2.x = r2 * Math.cos(new_angleb) + pt.x;
|
|
nct2.y = r2 * Math.sin(new_angleb) + pt.y;
|
|
|
|
return [nct1, nct2];
|
|
}
|
|
return undefined;
|
|
};
|
|
var smoothControlPoints = this.smoothControlPoints;
|
|
|
|
|
|
// matrixMultiply() is provided because WebKit didn't implement multiply() correctly
|
|
// on the SVGMatrix interface. See https://bugs.webkit.org/show_bug.cgi?id=16062
|
|
// This function tries to return a SVGMatrix that is the multiplication m1*m2.
|
|
// We also round to zero when it's near zero
|
|
this.matrixMultiply = function() {
|
|
var NEAR_ZERO = 1e-14,
|
|
multi2 = function(m1, m2) {
|
|
var m = svgroot.createSVGMatrix();
|
|
m.a = m1.a*m2.a + m1.c*m2.b;
|
|
m.b = m1.b*m2.a + m1.d*m2.b,
|
|
m.c = m1.a*m2.c + m1.c*m2.d,
|
|
m.d = m1.b*m2.c + m1.d*m2.d,
|
|
m.e = m1.a*m2.e + m1.c*m2.f + m1.e,
|
|
m.f = m1.b*m2.e + m1.d*m2.f + m1.f;
|
|
return m;
|
|
},
|
|
args = arguments, i = args.length, m = args[i-1];
|
|
|
|
while(i-- > 1) {
|
|
var m1 = args[i-1];
|
|
m = multi2(m1, m);
|
|
}
|
|
if (Math.abs(m.a) < NEAR_ZERO) m.a = 0;
|
|
if (Math.abs(m.b) < NEAR_ZERO) m.b = 0;
|
|
if (Math.abs(m.c) < NEAR_ZERO) m.c = 0;
|
|
if (Math.abs(m.d) < NEAR_ZERO) m.d = 0;
|
|
if (Math.abs(m.e) < NEAR_ZERO) m.e = 0;
|
|
if (Math.abs(m.f) < NEAR_ZERO) m.f = 0;
|
|
|
|
return m;
|
|
}
|
|
var matrixMultiply = this.matrixMultiply;
|
|
|
|
// This returns a single matrix Transform for a given Transform List
|
|
// (this is the equivalent of SVGTransformList.consolidate() but unlike
|
|
// that method, this one does not modify the actual SVGTransformList)
|
|
// This function is very liberal with its min,max arguments
|
|
var transformListToTransform = function(tlist, min, max) {
|
|
var min = min == undefined ? 0 : min;
|
|
var max = max == undefined ? (tlist.numberOfItems-1) : max;
|
|
min = parseInt(min);
|
|
max = parseInt(max);
|
|
if (min > max) { var temp = max; max = min; min = temp; }
|
|
var m = svgroot.createSVGMatrix();
|
|
for (var i = min; i <= max; ++i) {
|
|
// if our indices are out of range, just use a harmless identity matrix
|
|
var mtom = (i >= 0 && i < tlist.numberOfItems ?
|
|
tlist.getItem(i).matrix :
|
|
svgroot.createSVGMatrix());
|
|
m = matrixMultiply(m, mtom);
|
|
}
|
|
return svgroot.createSVGTransformFromMatrix(m);
|
|
};
|
|
|
|
var hasMatrixTransform = function(tlist) {
|
|
if(!tlist) return false;
|
|
var num = tlist.numberOfItems;
|
|
while (num--) {
|
|
var xform = tlist.getItem(num);
|
|
if (xform.type == 1 && !isIdentity(xform.matrix)) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// // Easy way to loop through transform list, but may not be worthwhile
|
|
// var eachXform = function(elem, callback) {
|
|
// var tlist = canvas.getTransformList(elem);
|
|
// var num = tlist.numberOfItems;
|
|
// if(num == 0) return;
|
|
// while(num--) {
|
|
// var xform = tlist.getItem(num);
|
|
// callback(xform, tlist);
|
|
// }
|
|
// }
|
|
|
|
// FIXME: this should not have anything to do with zoom here - update the one place it is used this way
|
|
// converts a tiny object equivalent of a SVGTransform
|
|
// has the following properties:
|
|
// - tx, ty, sx, sy, angle, cx, cy, string
|
|
var transformToObj = function(xform, mZoom) {
|
|
var m = xform.matrix,
|
|
tobj = {tx:0,ty:0,sx:1,sy:1,angle:0,cx:0,cy:0,text:""},
|
|
z = mZoom?current_zoom:1;
|
|
switch(xform.type) {
|
|
case 1: // MATRIX
|
|
tobj.text = "matrix(" + [m.a,m.b,m.c,m.d,m.e,m.f].join(",") + ")";
|
|
break;
|
|
case 2: // TRANSLATE
|
|
tobj.tx = m.e;
|
|
tobj.ty = m.f;
|
|
tobj.text = "translate(" + m.e*z + "," + m.f*z + ")";
|
|
break;
|
|
case 3: // SCALE
|
|
tobj.sx = m.a;
|
|
tobj.sy = m.d;
|
|
if (m.a == m.d) tobj.text = "scale(" + m.a + ")";
|
|
else tobj.text = "scale(" + m.a + "," + m.d + ")";
|
|
break;
|
|
case 4: // ROTATE
|
|
tobj.angle = xform.angle;
|
|
// this prevents divide by zero
|
|
if (xform.angle != 0) {
|
|
var K = 1 - m.a;
|
|
tobj.cy = ( K * m.f + m.b*m.e ) / ( K*K + m.b*m.b );
|
|
tobj.cx = ( m.e - m.b * tobj.cy ) / K;
|
|
}
|
|
tobj.text = "rotate(" + xform.angle + " " + tobj.cx*z + "," + tobj.cy*z + ")";
|
|
break;
|
|
}
|
|
return tobj;
|
|
};
|
|
|
|
var transformBox = function(l, t, w, h, m) {
|
|
var topleft = {x:l,y:t},
|
|
topright = {x:(l+w),y:t},
|
|
botright = {x:(l+w),y:(t+h)},
|
|
botleft = {x:l,y:(t+h)};
|
|
topleft = transformPoint( topleft.x, topleft.y, m );
|
|
var minx = topleft.x,
|
|
maxx = topleft.x,
|
|
miny = topleft.y,
|
|
maxy = topleft.y;
|
|
topright = transformPoint( topright.x, topright.y, m );
|
|
minx = Math.min(minx, topright.x);
|
|
maxx = Math.max(maxx, topright.x);
|
|
miny = Math.min(miny, topright.y);
|
|
maxy = Math.max(maxy, topright.y);
|
|
botleft = transformPoint( botleft.x, botleft.y, m);
|
|
minx = Math.min(minx, botleft.x);
|
|
maxx = Math.max(maxx, botleft.x);
|
|
miny = Math.min(miny, botleft.y);
|
|
maxy = Math.max(maxy, botleft.y);
|
|
botright = transformPoint( botright.x, botright.y, m );
|
|
minx = Math.min(minx, botright.x);
|
|
maxx = Math.max(maxx, botright.x);
|
|
miny = Math.min(miny, botright.y);
|
|
maxy = Math.max(maxy, botright.y);
|
|
|
|
return {tl:topleft, tr:topright, bl:botleft, br:botright,
|
|
aabox: {x:minx, y:miny, width:(maxx-minx), height:(maxy-miny)} };
|
|
};
|
|
|
|
// Mouse events
|
|
(function() {
|
|
|
|
var d_attr = null,
|
|
start_x = null,
|
|
start_y = null,
|
|
init_bbox = {},
|
|
freehand = {
|
|
minx: null,
|
|
miny: null,
|
|
maxx: null,
|
|
maxy: null
|
|
};
|
|
|
|
// - when we are in a create mode, the element is added to the canvas
|
|
// but the action is not recorded until mousing up
|
|
// - when we are in select mode, select the element, remember the position
|
|
// and do nothing else
|
|
var mouseDown = function(evt)
|
|
{
|
|
root_sctm = svgcontent.getScreenCTM().inverse();
|
|
var pt = transformPoint( evt.pageX, evt.pageY, root_sctm ),
|
|
mouse_x = pt.x * current_zoom,
|
|
mouse_y = pt.y * current_zoom;
|
|
evt.preventDefault();
|
|
|
|
if($.inArray(current_mode, ['select', 'resize']) == -1) {
|
|
addGradient();
|
|
}
|
|
|
|
var x = mouse_x / current_zoom,
|
|
y = mouse_y / current_zoom,
|
|
mouse_target = evt.target;
|
|
|
|
start_x = x;
|
|
start_y = y;
|
|
|
|
// if it was a <use>, Opera and WebKit return the SVGElementInstance
|
|
if (mouse_target.correspondingUseElement)
|
|
mouse_target = mouse_target.correspondingUseElement;
|
|
|
|
// for foreign content, go up until we find the foreignObject
|
|
// WebKit browsers set the mouse target to the svgcanvas div
|
|
if ($.inArray(mouse_target.namespaceURI, [mathns, htmlns]) != -1 &&
|
|
mouse_target.id != "svgcanvas")
|
|
{
|
|
while (mouse_target.nodeName != "foreignObject") {
|
|
mouse_target = mouse_target.parentNode;
|
|
}
|
|
}
|
|
|
|
// go up until we hit a child of a layer
|
|
while (mouse_target.parentNode.parentNode.tagName == "g") {
|
|
mouse_target = mouse_target.parentNode;
|
|
}
|
|
// Webkit bubbles the mouse event all the way up to the div, so we
|
|
// set the mouse_target to the svgroot like the other browsers
|
|
if (mouse_target.nodeName.toLowerCase() == "div") {
|
|
mouse_target = svgroot;
|
|
}
|
|
// if it is a selector grip, then it must be a single element selected,
|
|
// set the mouse_target to that and update the mode to rotate/resize
|
|
if (mouse_target.parentNode == selectorManager.selectorParentGroup && selectedElements[0] != null) {
|
|
var gripid = evt.target.id,
|
|
griptype = gripid.substr(0,20);
|
|
// rotating
|
|
if (griptype == "selectorGrip_rotate_") {
|
|
current_mode = "rotate";
|
|
}
|
|
// resizing
|
|
else if(griptype == "selectorGrip_resize_") {
|
|
current_mode = "resize";
|
|
current_resize_mode = gripid.substr(20,gripid.indexOf("_",20)-20);
|
|
}
|
|
mouse_target = selectedElements[0];
|
|
}
|
|
|
|
start_transform = mouse_target.getAttribute("transform");
|
|
var tlist = canvas.getTransformList(mouse_target);
|
|
switch (current_mode) {
|
|
case "select":
|
|
started = true;
|
|
current_resize_mode = "none";
|
|
|
|
if (mouse_target != svgroot) {
|
|
// if this element is not yet selected, clear selection and select it
|
|
if (selectedElements.indexOf(mouse_target) == -1) {
|
|
// only clear selection if shift is not pressed (otherwise, add
|
|
// element to selection)
|
|
if (!evt.shiftKey) {
|
|
canvas.clearSelection();
|
|
}
|
|
canvas.addToSelection([mouse_target]);
|
|
justSelected = mouse_target;
|
|
pathActions.clear();
|
|
}
|
|
// else if it's a path, go into pathedit mode in mouseup
|
|
|
|
// insert a dummy transform so if the element(s) are moved it will have
|
|
// a transform to use for its translate
|
|
for (var i = 0; i < selectedElements.length; ++i) {
|
|
if(selectedElements[i] == null) continue;
|
|
var slist = canvas.getTransformList(selectedElements[i]);
|
|
slist.insertItemBefore(svgroot.createSVGTransform(), 0);
|
|
}
|
|
}
|
|
else {
|
|
canvas.clearSelection();
|
|
current_mode = "multiselect";
|
|
if (rubberBox == null) {
|
|
rubberBox = selectorManager.getRubberBandBox();
|
|
}
|
|
start_x *= current_zoom;
|
|
start_y *= current_zoom;
|
|
assignAttributes(rubberBox, {
|
|
'x': start_x,
|
|
'y': start_y,
|
|
'width': 0,
|
|
'height': 0,
|
|
'display': 'inline'
|
|
}, 100);
|
|
}
|
|
break;
|
|
case "zoom":
|
|
started = true;
|
|
start_x = x;
|
|
start_y = y;
|
|
if (rubberBox == null) {
|
|
rubberBox = selectorManager.getRubberBandBox();
|
|
}
|
|
assignAttributes(rubberBox, {
|
|
'x': start_x * current_zoom,
|
|
'y': start_y * current_zoom,
|
|
'width': 0,
|
|
'height': 0,
|
|
'display': 'inline'
|
|
}, 100);
|
|
break;
|
|
case "resize":
|
|
started = true;
|
|
start_x = x;
|
|
start_y = y;
|
|
|
|
// Getting the BBox from the selection box, since we know we
|
|
// want to orient around it
|
|
init_bbox = canvas.getBBox($('#selectedBox0')[0]);
|
|
$.each(init_bbox, function(key, val) {
|
|
init_bbox[key] = val/current_zoom;
|
|
});
|
|
|
|
// append three dummy transforms to the tlist so that
|
|
// we can translate,scale,translate in mousemove
|
|
var pos = canvas.getRotationAngle(mouse_target)?1:0;
|
|
|
|
if(hasMatrixTransform(tlist)) {
|
|
tlist.insertItemBefore(svgroot.createSVGTransform(), pos);
|
|
tlist.insertItemBefore(svgroot.createSVGTransform(), pos);
|
|
tlist.insertItemBefore(svgroot.createSVGTransform(), pos);
|
|
} else {
|
|
tlist.appendItem(svgroot.createSVGTransform());
|
|
tlist.appendItem(svgroot.createSVGTransform());
|
|
tlist.appendItem(svgroot.createSVGTransform());
|
|
}
|
|
break;
|
|
case "fhellipse":
|
|
case "fhrect":
|
|
case "fhpath":
|
|
started = true;
|
|
start_x = x;
|
|
start_y = y;
|
|
d_attr = x + "," + y + " ";
|
|
var stroke_w = cur_shape.stroke_width == 0?1:cur_shape.stroke_width;
|
|
addSvgElementFromJson({
|
|
"element": "polyline",
|
|
"attr": {
|
|
"points": d_attr,
|
|
"id": getNextId(),
|
|
"fill": "none",
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": stroke_w,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"stroke-linecap": "round",
|
|
"stroke-linejoin": "round",
|
|
"opacity": cur_shape.opacity / 2,
|
|
"style": "pointer-events:none"
|
|
}
|
|
});
|
|
freehand.minx = x;
|
|
freehand.maxx = x;
|
|
freehand.miny = y;
|
|
freehand.maxy = y;
|
|
break;
|
|
case "image":
|
|
started = true;
|
|
start_x = x;
|
|
start_y = y;
|
|
var newImage = addSvgElementFromJson({
|
|
"element": "image",
|
|
"attr": {
|
|
"x": x,
|
|
"y": y,
|
|
"width": 0,
|
|
"height": 0,
|
|
"id": getNextId(),
|
|
"opacity": cur_shape.opacity / 2,
|
|
"style": "pointer-events:inherit"
|
|
}
|
|
});
|
|
newImage.setAttributeNS(xlinkns, "xlink:href", last_good_img_url);
|
|
preventClickDefault(newImage);
|
|
break;
|
|
case "square":
|
|
// FIXME: once we create the rect, we lose information that this was a square
|
|
// (for resizing purposes this could be important)
|
|
case "rect":
|
|
started = true;
|
|
start_x = x;
|
|
start_y = y;
|
|
addSvgElementFromJson({
|
|
"element": "rect",
|
|
"attr": {
|
|
"x": x,
|
|
"y": y,
|
|
"width": 0,
|
|
"height": 0,
|
|
"id": getNextId(),
|
|
"fill": cur_shape.fill,
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": cur_shape.stroke_width,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"fill-opacity": cur_shape.fill_opacity,
|
|
"opacity": cur_shape.opacity / 2,
|
|
"style": "pointer-events:inherit"
|
|
}
|
|
});
|
|
break;
|
|
case "line":
|
|
started = true;
|
|
var stroke_w = cur_shape.stroke_width == 0?1:cur_shape.stroke_width;
|
|
addSvgElementFromJson({
|
|
"element": "line",
|
|
"attr": {
|
|
"x1": x,
|
|
"y1": y,
|
|
"x2": x,
|
|
"y2": y,
|
|
"id": getNextId(),
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": stroke_w,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"fill": "none",
|
|
"opacity": cur_shape.opacity / 2,
|
|
"style": "pointer-events:none"
|
|
}
|
|
});
|
|
break;
|
|
case "circle":
|
|
started = true;
|
|
addSvgElementFromJson({
|
|
"element": "circle",
|
|
"attr": {
|
|
"cx": x,
|
|
"cy": y,
|
|
"r": 0,
|
|
"id": getNextId(),
|
|
"fill": cur_shape.fill,
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": cur_shape.stroke_width,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"fill-opacity": cur_shape.fill_opacity,
|
|
"opacity": cur_shape.opacity / 2,
|
|
"style": "pointer-events:inherit"
|
|
}
|
|
});
|
|
break;
|
|
case "ellipse":
|
|
started = true;
|
|
addSvgElementFromJson({
|
|
"element": "ellipse",
|
|
"attr": {
|
|
"cx": x,
|
|
"cy": y,
|
|
"rx": 0,
|
|
"ry": 0,
|
|
"id": getNextId(),
|
|
"fill": cur_shape.fill,
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": cur_shape.stroke_width,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"fill-opacity": cur_shape.fill_opacity,
|
|
"opacity": cur_shape.opacity / 2,
|
|
"style": "pointer-events:inherit"
|
|
}
|
|
});
|
|
break;
|
|
case "text":
|
|
started = true;
|
|
var newText = addSvgElementFromJson({
|
|
"element": "text",
|
|
"attr": {
|
|
"x": x,
|
|
"y": y,
|
|
"id": getNextId(),
|
|
"fill": cur_text.fill,
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": cur_text.stroke_width,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"fill-opacity": cur_shape.fill_opacity,
|
|
// fix for bug where text elements were always 50% opacity
|
|
"opacity": cur_shape.opacity,
|
|
"font-size": cur_text.font_size,
|
|
"font-family": cur_text.font_family,
|
|
"text-anchor": "middle",
|
|
"style": "pointer-events:inherit",
|
|
"xml:space": "preserve"
|
|
}
|
|
});
|
|
newText.textContent = "text";
|
|
break;
|
|
case "path":
|
|
// Fall through
|
|
case "pathedit":
|
|
start_x *= current_zoom;
|
|
start_y *= current_zoom;
|
|
pathActions.mouseDown(evt, mouse_target, start_x, start_y);
|
|
started = true;
|
|
break;
|
|
case "rotate":
|
|
started = true;
|
|
// we are starting an undoable change (a drag-rotation)
|
|
canvas.beginUndoableChange("transform", selectedElements);
|
|
break;
|
|
default:
|
|
// This could occur in an extension
|
|
break;
|
|
}
|
|
|
|
var ext_result = runExtensions("mouseDown", {
|
|
event: evt,
|
|
start_x: start_x,
|
|
start_y: start_y,
|
|
selectedElements: selectedElements
|
|
}, true);
|
|
|
|
$.each(ext_result, function(i, r) {
|
|
if(r && r.started) {
|
|
started = true;
|
|
}
|
|
});
|
|
};
|
|
|
|
// in this function we do not record any state changes yet (but we do update
|
|
// any elements that are still being created, moved or resized on the canvas)
|
|
// TODO: svgcanvas should just retain a reference to the image being dragged instead
|
|
// of the getId() and getElementById() funkiness - this will help us customize the ids
|
|
// a little bit for squares and paths
|
|
var mouseMove = function(evt)
|
|
{
|
|
if (!started) return;
|
|
var selected = selectedElements[0],
|
|
pt = transformPoint( evt.pageX, evt.pageY, root_sctm ),
|
|
mouse_x = pt.x * current_zoom,
|
|
mouse_y = pt.y * current_zoom,
|
|
shape = getElem(getId());
|
|
|
|
x = mouse_x / current_zoom;
|
|
y = mouse_y / current_zoom;
|
|
|
|
evt.preventDefault();
|
|
|
|
switch (current_mode)
|
|
{
|
|
case "select":
|
|
// we temporarily use a translate on the element(s) being dragged
|
|
// this transform is removed upon mousing up and the element is
|
|
// relocated to the new location
|
|
if (selectedElements[0] != null) {
|
|
var dx = x - start_x;
|
|
var dy = y - start_y;
|
|
if (dx != 0 || dy != 0) {
|
|
var len = selectedElements.length;
|
|
for (var i = 0; i < len; ++i) {
|
|
var selected = selectedElements[i];
|
|
if (selected == null) break;
|
|
if (i==0) {
|
|
var box = canvas.getBBox(selected);
|
|
selectedBBoxes[i].x = box.x + dx;
|
|
selectedBBoxes[i].y = box.y + dy;
|
|
}
|
|
|
|
// update the dummy transform in our transform list
|
|
// to be a translate
|
|
var xform = svgroot.createSVGTransform();
|
|
var tlist = canvas.getTransformList(selected);
|
|
xform.setTranslate(dx,dy);
|
|
if(tlist.numberOfItems) {
|
|
tlist.replaceItem(xform, 0);
|
|
// TODO: Webkit returns null here, find out why
|
|
// console.log(selected.getAttribute("transform"))
|
|
|
|
} else {
|
|
tlist.appendItem(xform);
|
|
}
|
|
|
|
// update our internal bbox that we're tracking while dragging
|
|
selectorManager.requestSelector(selected).resize();
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case "multiselect":
|
|
x *= current_zoom;
|
|
y *= current_zoom;
|
|
assignAttributes(rubberBox, {
|
|
'x': Math.min(start_x,x),
|
|
'y': Math.min(start_y,y),
|
|
'width': Math.abs(x-start_x),
|
|
'height': Math.abs(y-start_y)
|
|
},100);
|
|
|
|
// for each selected:
|
|
// - if newList contains selected, do nothing
|
|
// - if newList doesn't contain selected, remove it from selected
|
|
// - for any newList that was not in selectedElements, add it to selected
|
|
var elemsToRemove = [], elemsToAdd = [],
|
|
newList = getIntersectionList(),
|
|
len = selectedElements.length;
|
|
for (var i = 0; i < len; ++i) {
|
|
var ind = newList.indexOf(selectedElements[i]);
|
|
if (ind == -1) {
|
|
elemsToRemove.push(selectedElements[i]);
|
|
}
|
|
else {
|
|
newList[ind] = null;
|
|
}
|
|
}
|
|
|
|
len = newList.length;
|
|
for (i = 0; i < len; ++i) { if (newList[i]) elemsToAdd.push(newList[i]); }
|
|
|
|
if (elemsToRemove.length > 0)
|
|
canvas.removeFromSelection(elemsToRemove);
|
|
|
|
if (elemsToAdd.length > 0)
|
|
canvas.addToSelection(elemsToAdd);
|
|
break;
|
|
case "resize":
|
|
// we track the resize bounding box and translate/scale the selected element
|
|
// while the mouse is down, when mouse goes up, we use this to recalculate
|
|
// the shape's coordinates
|
|
var tlist = canvas.getTransformList(selected),
|
|
hasMatrix = hasMatrixTransform(tlist),
|
|
box=hasMatrix?init_bbox:canvas.getBBox(selected),
|
|
left=box.x, top=box.y, width=box.width,
|
|
height=box.height, dx=(x-start_x), dy=(y-start_y);
|
|
|
|
// if rotated, adjust the dx,dy values
|
|
var angle = canvas.getRotationAngle(selected);
|
|
if (angle) {
|
|
var r = Math.sqrt( dx*dx + dy*dy ),
|
|
theta = Math.atan2(dy,dx) - angle * Math.PI / 180.0;
|
|
dx = r * Math.cos(theta);
|
|
dy = r * Math.sin(theta);
|
|
}
|
|
|
|
// if not stretching in y direction, set dy to 0
|
|
// if not stretching in x direction, set dx to 0
|
|
if(current_resize_mode.indexOf("n")==-1 && current_resize_mode.indexOf("s")==-1) {
|
|
dy = 0;
|
|
}
|
|
if(current_resize_mode.indexOf("e")==-1 && current_resize_mode.indexOf("w")==-1) {
|
|
dx = 0;
|
|
}
|
|
|
|
var ts = null,
|
|
tx = 0, ty = 0,
|
|
sy = height ? (height+dy)/height : 1,
|
|
sx = width ? (width+dx)/width : 1;
|
|
// if we are dragging on the north side, then adjust the scale factor and ty
|
|
if(current_resize_mode.indexOf("n") != -1) {
|
|
sy = height ? (height-dy)/height : 1;
|
|
ty = height;
|
|
}
|
|
|
|
// if we dragging on the east side, then adjust the scale factor and tx
|
|
if(current_resize_mode.indexOf("w") != -1) {
|
|
sx = width ? (width-dx)/width : 1;
|
|
tx = width;
|
|
}
|
|
|
|
// update the transform list with translate,scale,translate
|
|
var translateOrigin = svgroot.createSVGTransform(),
|
|
scale = svgroot.createSVGTransform(),
|
|
translateBack = svgroot.createSVGTransform();
|
|
translateOrigin.setTranslate(-(left+tx),-(top+ty));
|
|
if(evt.shiftKey) {
|
|
if(sx == 1) sx = sy
|
|
else sy = sx;
|
|
}
|
|
scale.setScale(sx,sy);
|
|
|
|
translateBack.setTranslate(left+tx,top+ty);
|
|
if(hasMatrix) {
|
|
var diff = angle?1:0;
|
|
tlist.replaceItem(translateOrigin, 2+diff);
|
|
tlist.replaceItem(scale, 1+diff);
|
|
tlist.replaceItem(translateBack, 0+diff);
|
|
} else {
|
|
var N = tlist.numberOfItems;
|
|
tlist.replaceItem(translateBack, N-3);
|
|
tlist.replaceItem(scale, N-2);
|
|
tlist.replaceItem(translateOrigin, N-1);
|
|
}
|
|
var selectedBBox = selectedBBoxes[0];
|
|
|
|
// reset selected bbox top-left position
|
|
selectedBBox.x = left;
|
|
selectedBBox.y = top;
|
|
|
|
// if this is a translate, adjust the box position
|
|
if (tx) {
|
|
selectedBBox.x += dx;
|
|
}
|
|
if (ty) {
|
|
selectedBBox.y += dy;
|
|
}
|
|
|
|
selectorManager.requestSelector(selected).resize();
|
|
break;
|
|
case "zoom":
|
|
x *= current_zoom;
|
|
y *= current_zoom;
|
|
assignAttributes(rubberBox, {
|
|
'x': Math.min(start_x*current_zoom,x),
|
|
'y': Math.min(start_y*current_zoom,y),
|
|
'width': Math.abs(x-start_x*current_zoom),
|
|
'height': Math.abs(y-start_y*current_zoom)
|
|
},100);
|
|
break;
|
|
case "text":
|
|
assignAttributes(shape,{
|
|
'x': x,
|
|
'y': y
|
|
},1000);
|
|
break;
|
|
case "line":
|
|
// Opera has a problem with suspendRedraw() apparently
|
|
var handle = null;
|
|
if (!window.opera) svgroot.suspendRedraw(1000);
|
|
shape.setAttributeNS(null, "x2", x);
|
|
shape.setAttributeNS(null, "y2", y);
|
|
if (!window.opera) svgroot.unsuspendRedraw(handle);
|
|
break;
|
|
case "foreignObject":
|
|
// fall through
|
|
case "square":
|
|
// fall through
|
|
case "rect":
|
|
// fall through
|
|
case "image":
|
|
var square = (current_mode == 'square') || evt.shiftKey,
|
|
w = Math.abs(x - start_x),
|
|
h = Math.abs(y - start_y),
|
|
new_x, new_y;
|
|
if(square) {
|
|
w = h = Math.max(w, h);
|
|
new_x = start_x < x ? start_x : start_x - w;
|
|
new_y = start_y < y ? start_y : start_y - h;
|
|
} else {
|
|
new_x = Math.min(start_x,x);
|
|
new_y = Math.min(start_y,y);
|
|
}
|
|
|
|
assignAttributes(shape,{
|
|
'width': w,
|
|
'height': h,
|
|
'x': new_x,
|
|
'y': new_y
|
|
},1000);
|
|
|
|
break;
|
|
case "circle":
|
|
var c = $(shape).attr(["cx", "cy"]);
|
|
var cx = c.cx, cy = c.cy,
|
|
rad = Math.sqrt( (x-cx)*(x-cx) + (y-cy)*(y-cy) );
|
|
shape.setAttributeNS(null, "r", rad);
|
|
break;
|
|
case "ellipse":
|
|
var c = $(shape).attr(["cx", "cy"]);
|
|
var cx = c.cx, cy = c.cy;
|
|
// Opera has a problem with suspendRedraw() apparently
|
|
handle = null;
|
|
if (!window.opera) svgroot.suspendRedraw(1000);
|
|
shape.setAttributeNS(null, "rx", Math.abs(x - cx) );
|
|
var ry = Math.abs(evt.shiftKey?(x - cx):(y - cy));
|
|
shape.setAttributeNS(null, "ry", ry );
|
|
if (!window.opera) svgroot.unsuspendRedraw(handle);
|
|
break;
|
|
case "fhellipse":
|
|
case "fhrect":
|
|
freehand.minx = Math.min(x, freehand.minx);
|
|
freehand.maxx = Math.max(x, freehand.maxx);
|
|
freehand.miny = Math.min(y, freehand.miny);
|
|
freehand.maxy = Math.max(y, freehand.maxy);
|
|
// break; missing on purpose
|
|
case "fhpath":
|
|
start_x = x;
|
|
start_y = y;
|
|
d_attr += + x + "," + y + " ";
|
|
shape.setAttributeNS(null, "points", d_attr);
|
|
break;
|
|
// update path stretch line coordinates
|
|
case "path":
|
|
// fall through
|
|
case "pathedit":
|
|
x *= current_zoom;
|
|
y *= current_zoom;
|
|
if(rubberBox && rubberBox.getAttribute('display') != 'none') {
|
|
assignAttributes(rubberBox, {
|
|
'x': Math.min(start_x,x),
|
|
'y': Math.min(start_y,y),
|
|
'width': Math.abs(x-start_x),
|
|
'height': Math.abs(y-start_y)
|
|
},100);
|
|
}
|
|
|
|
pathActions.mouseMove(mouse_x, mouse_y);
|
|
|
|
break;
|
|
case "rotate":
|
|
var box = canvas.getBBox(selected),
|
|
cx = box.x + box.width/2,
|
|
cy = box.y + box.height/2,
|
|
m = transformListToTransform(canvas.getTransformList(selected)).matrix,
|
|
center = transformPoint(cx,cy,m);
|
|
cx = center.x;
|
|
cy = center.y;
|
|
var angle = ((Math.atan2(cy-y,cx-x) * (180/Math.PI))-90) % 360;
|
|
canvas.setRotationAngle(angle<-180?(360+angle):angle, true);
|
|
call("changed", selectedElements);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
runExtensions("mouseMove", {
|
|
event: evt,
|
|
mouse_x: mouse_x,
|
|
mouse_y: mouse_y,
|
|
selected: selected
|
|
});
|
|
|
|
}; // mouseMove()
|
|
|
|
var mouseUp = function(evt)
|
|
{
|
|
var tempJustSelected = justSelected;
|
|
justSelected = null;
|
|
if (!started) return;
|
|
var pt = transformPoint( evt.pageX, evt.pageY, root_sctm ),
|
|
mouse_x = pt.x * current_zoom,
|
|
mouse_y = pt.y * current_zoom,
|
|
x = mouse_x / current_zoom,
|
|
y = mouse_y / current_zoom,
|
|
element = getElem(getId()),
|
|
keep = false;
|
|
|
|
started = false;
|
|
switch (current_mode)
|
|
{
|
|
// intentionally fall-through to select here
|
|
case "resize":
|
|
case "multiselect":
|
|
if (rubberBox != null) {
|
|
rubberBox.setAttribute("display", "none");
|
|
curBBoxes = [];
|
|
}
|
|
current_mode = "select";
|
|
case "select":
|
|
if (selectedElements[0] != null) {
|
|
// if we only have one selected element
|
|
if (selectedElements[1] == null) {
|
|
// set our current stroke/fill properties to the element's
|
|
var selected = selectedElements[0];
|
|
if (selected.tagName != "g" && selected.tagName != "image" && selected.tagName != "foreignObject") {
|
|
cur_properties.fill = selected.getAttribute("fill");
|
|
cur_properties.fill_opacity = selected.getAttribute("fill-opacity");
|
|
cur_properties.stroke = selected.getAttribute("stroke");
|
|
cur_properties.stroke_opacity = selected.getAttribute("stroke-opacity");
|
|
cur_properties.stroke_width = selected.getAttribute("stroke-width");
|
|
cur_properties.stroke_style = selected.getAttribute("stroke-dasharray");
|
|
}
|
|
if (selected.tagName == "text") {
|
|
cur_text.font_size = selected.getAttribute("font-size");
|
|
cur_text.font_family = selected.getAttribute("font-family");
|
|
}
|
|
selectorManager.requestSelector(selected).showGrips(true);
|
|
call("selected", [selected]);
|
|
}
|
|
// always recalculate dimensions to strip off stray identity transforms
|
|
recalculateAllSelectedDimensions();
|
|
// if it was being dragged/resized
|
|
if (x != start_x || y != start_y) {
|
|
var len = selectedElements.length;
|
|
for (var i = 0; i < len; ++i) {
|
|
if (selectedElements[i] == null) break;
|
|
if(selectedElements[i].tagName != 'g') {
|
|
// Not needed for groups (incorrectly resizes elems), possibly not needed at all?
|
|
selectorManager.requestSelector(selectedElements[i]).resize();
|
|
}
|
|
}
|
|
}
|
|
// no change in position/size, so maybe we should move to pathedit
|
|
else {
|
|
var t = evt.target;
|
|
if (selectedElements[0].nodeName == "path" && selectedElements[1] == null) {
|
|
pathActions.select(t);
|
|
} // if it was a path
|
|
// else, if it was selected and this is a shift-click, remove it from selection
|
|
else if (evt.shiftKey) {
|
|
if(tempJustSelected != t) {
|
|
canvas.removeFromSelection([t]);
|
|
}
|
|
}
|
|
} // no change in mouse position
|
|
}
|
|
// we return immediately from select so that the obj_num is not incremented
|
|
return;
|
|
break;
|
|
case "zoom":
|
|
if (rubberBox != null) {
|
|
rubberBox.setAttribute("display", "none");
|
|
}
|
|
var factor = evt.shiftKey?.5:2;
|
|
call("zoomed", {
|
|
'x': Math.min(start_x,x),
|
|
'y': Math.min(start_y,y),
|
|
'width': Math.abs(x-start_x),
|
|
'height': Math.abs(y-start_y),
|
|
'factor': factor
|
|
});
|
|
return;
|
|
case "fhpath":
|
|
// Check that the path contains at least 2 points; a degenerate one-point path
|
|
// causes problems.
|
|
// Webkit ignores how we set the points attribute with commas and uses space
|
|
// to separate all coordinates, see https://bugs.webkit.org/show_bug.cgi?id=29870
|
|
var coords = element.getAttribute('points');
|
|
var commaIndex = coords.indexOf(',');
|
|
if (commaIndex >= 0) {
|
|
keep = coords.indexOf(',', commaIndex+1) >= 0;
|
|
} else {
|
|
keep = coords.indexOf(' ', coords.indexOf(' ')+1) >= 0;
|
|
}
|
|
if (keep) {
|
|
element = pathActions.smoothPolylineIntoPath(element);
|
|
}
|
|
break;
|
|
case "line":
|
|
var attrs = $(element).attr(["x1", "x2", "y1", "y2"]);
|
|
keep = (attrs.x1 != attrs.x2 || attrs.y1 != attrs.y2);
|
|
break;
|
|
case "foreignObject":
|
|
case "square":
|
|
case "rect":
|
|
case "image":
|
|
var attrs = $(element).attr(["width", "height"]);
|
|
keep = (attrs.width != 0 || attrs.height != 0);
|
|
break;
|
|
case "circle":
|
|
keep = (element.getAttribute('r') != 0);
|
|
break;
|
|
case "ellipse":
|
|
var attrs = $(element).attr(["rx", "ry"]);
|
|
keep = (attrs.rx != null || attrs.ry != null);
|
|
break;
|
|
case "fhellipse":
|
|
if ((freehand.maxx - freehand.minx) > 0 &&
|
|
(freehand.maxy - freehand.miny) > 0) {
|
|
element = addSvgElementFromJson({
|
|
"element": "ellipse",
|
|
"attr": {
|
|
"cx": (freehand.minx + freehand.maxx) / 2,
|
|
"cy": (freehand.miny + freehand.maxy) / 2,
|
|
"rx": (freehand.maxx - freehand.minx) / 2,
|
|
"ry": (freehand.maxy - freehand.miny) / 2,
|
|
"id": getId(),
|
|
"fill": cur_shape.fill,
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": cur_shape.stroke_width,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"opacity": cur_shape.opacity,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"fill-opacity": cur_shape.fill_opacity,
|
|
"style": "pointer-events:inherit"
|
|
}
|
|
});
|
|
call("changed",[element]);
|
|
keep = true;
|
|
}
|
|
break;
|
|
case "fhrect":
|
|
if ((freehand.maxx - freehand.minx) > 0 &&
|
|
(freehand.maxy - freehand.miny) > 0) {
|
|
element = addSvgElementFromJson({
|
|
"element": "rect",
|
|
"attr": {
|
|
"x": freehand.minx,
|
|
"y": freehand.miny,
|
|
"width": (freehand.maxx - freehand.minx),
|
|
"height": (freehand.maxy - freehand.miny),
|
|
"id": getId(),
|
|
"fill": cur_shape.fill,
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": cur_shape.stroke_width,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"opacity": cur_shape.opacity,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"fill-opacity": cur_shape.fill_opacity,
|
|
"style": "pointer-events:inherit"
|
|
}
|
|
});
|
|
call("changed",[element]);
|
|
keep = true;
|
|
}
|
|
break;
|
|
case "text":
|
|
keep = true;
|
|
canvas.clearSelection();
|
|
break;
|
|
case "path":
|
|
// set element to null here so that it is not removed nor finalized
|
|
element = null;
|
|
// continue to be set to true so that mouseMove happens
|
|
started = true;
|
|
|
|
var res = pathActions.mouseUp(evt, element, mouse_x, mouse_y);
|
|
element = res.element
|
|
keep = res.keep;
|
|
break;
|
|
case "pathedit":
|
|
keep = true;
|
|
element = null;
|
|
pathActions.mouseUp(evt);
|
|
break;
|
|
case "rotate":
|
|
keep = true;
|
|
element = null;
|
|
current_mode = "select";
|
|
var batchCmd = canvas.finishUndoableChange();
|
|
if (!batchCmd.isEmpty()) {
|
|
addCommandToHistory(batchCmd);
|
|
}
|
|
// perform recalculation to weed out any stray identity transforms that might get stuck
|
|
recalculateAllSelectedDimensions();
|
|
break;
|
|
default:
|
|
// This could occur in an extension
|
|
break;
|
|
}
|
|
|
|
var ext_result = runExtensions("mouseUp", {
|
|
event: evt,
|
|
mouse_x: mouse_x,
|
|
mouse_y: mouse_y
|
|
}, true);
|
|
|
|
$.each(ext_result, function(i, r) {
|
|
if(r) {
|
|
keep = r.keep || keep;
|
|
element = r.element;
|
|
started = r.started || started;
|
|
}
|
|
});
|
|
|
|
if (!keep && element != null) {
|
|
element.parentNode.removeChild(element);
|
|
element = null;
|
|
|
|
var t = evt.target;
|
|
|
|
// if this element is in a group, go up until we reach the top-level group
|
|
// just below the layer groups
|
|
// TODO: once we implement links, we also would have to check for <a> elements
|
|
while (t.parentNode.parentNode.tagName == "g") {
|
|
t = t.parentNode;
|
|
}
|
|
// if we are not in the middle of creating a path, and we've clicked on some shape,
|
|
// then go to Select mode.
|
|
// WebKit returns <div> when the canvas is clicked, Firefox/Opera return <svg>
|
|
if ( (current_mode != "path" || current_path_pts.length == 0) &&
|
|
t.parentNode.id != "selectorParentGroup" &&
|
|
t.id != "svgcanvas" && t.id != "svgroot")
|
|
{
|
|
// switch into "select" mode if we've clicked on an element
|
|
canvas.addToSelection([t], true);
|
|
canvas.setMode("select");
|
|
}
|
|
|
|
} else if (element != null) {
|
|
canvas.addedNew = true;
|
|
var ani_dur = .2, c_ani;
|
|
if(opac_ani.beginElement && element.getAttribute('opacity') != cur_shape.opacity) {
|
|
c_ani = $(opac_ani).clone().attr({
|
|
to: cur_shape.opacity,
|
|
dur: ani_dur
|
|
}).appendTo(element);
|
|
c_ani[0].beginElement();
|
|
} else {
|
|
ani_dur = 0;
|
|
}
|
|
|
|
// Ideally this would be done on the endEvent of the animation,
|
|
// but that doesn't seem to be supported in Webkit
|
|
setTimeout(function() {
|
|
if(c_ani) c_ani.remove();
|
|
element.setAttribute("opacity", cur_shape.opacity);
|
|
element.setAttribute("style", "pointer-events:inherit");
|
|
cleanupElement(element);
|
|
if(current_mode == "path") {
|
|
pathActions.toEditMode(element);
|
|
} else if (current_mode == "text" || current_mode == "image" || current_mode == "foreignObject") {
|
|
// keep us in the tool we were in unless it was a text or image element
|
|
canvas.addToSelection([element], true);
|
|
}
|
|
// we create the insert command that is stored on the stack
|
|
// undo means to call cmd.unapply(), redo means to call cmd.apply()
|
|
addCommandToHistory(new InsertElementCommand(element));
|
|
call("changed",[element]);
|
|
}, ani_dur * 1000);
|
|
}
|
|
|
|
start_transform = null;
|
|
};
|
|
|
|
// prevent links from being followed in the canvas
|
|
var handleLinkInCanvas = function(e) {
|
|
e.preventDefault();
|
|
return false;
|
|
};
|
|
|
|
$(container).mousedown(mouseDown).mousemove(mouseMove).click(handleLinkInCanvas);
|
|
$(window).mouseup(mouseUp);
|
|
|
|
$(container).bind("mousewheel DOMMouseScroll", function(e){
|
|
if(!e.shiftKey) return;
|
|
e.preventDefault();
|
|
|
|
root_sctm = svgcontent.getScreenCTM().inverse();
|
|
var pt = transformPoint( e.pageX, e.pageY, root_sctm );
|
|
var bbox = {
|
|
'x': pt.x,
|
|
'y': pt.y,
|
|
'width': 0,
|
|
'height': 0
|
|
};
|
|
|
|
// Respond to mouse wheel in IE/Webkit/Opera.
|
|
// (It returns up/dn motion in multiples of 120)
|
|
if(e.wheelDelta) {
|
|
if (e.wheelDelta >= 120) {
|
|
bbox.factor = 2;
|
|
} else if (e.wheelDelta <= -120) {
|
|
bbox.factor = .5;
|
|
}
|
|
} else if(e.detail) {
|
|
if (e.detail > 0) {
|
|
bbox.factor = .5;
|
|
} else if (e.detail < 0) {
|
|
bbox.factor = 2;
|
|
}
|
|
}
|
|
|
|
if(!bbox.factor) return;
|
|
call("zoomed", bbox);
|
|
});
|
|
|
|
}());
|
|
|
|
var pathActions = function() {
|
|
|
|
var subpath = false;
|
|
var pathData = {};
|
|
var current_path;
|
|
var path;
|
|
var segData = {
|
|
2: ['x','y'],
|
|
4: ['x','y'],
|
|
6: ['x','y','x1','y1','x2','y2'],
|
|
8: ['x','y','x1','y1'],
|
|
10: ['x','y','r1','r2','angle','largeArcFlag','sweepFlag'],
|
|
12: ['x'],
|
|
14: ['y']
|
|
};
|
|
|
|
function retPath() {
|
|
return path;
|
|
}
|
|
|
|
function resetD(p) {
|
|
p.setAttribute("d", pathActions.convertPath(p));
|
|
}
|
|
|
|
function insertItemBefore(elem, newseg, index) {
|
|
// Support insertItemBefore on paths for FF2
|
|
var list = elem.pathSegList;
|
|
var len = list.numberOfItems;
|
|
var arr = [];
|
|
for(var i=0; i<len; i++) {
|
|
var cur_seg = list.getItem(i);
|
|
arr.push(cur_seg)
|
|
}
|
|
list.clear();
|
|
for(var i=0; i<len; i++) {
|
|
if(i == index) { //index+1
|
|
list.appendItem(newseg);
|
|
}
|
|
list.appendItem(arr[i]);
|
|
}
|
|
}
|
|
|
|
// TODO: See if this should just live in replacePathSeg
|
|
function ptObjToArr(type, seg_item) {
|
|
var arr = segData[type], len = arr.length;
|
|
var out = Array(len);
|
|
for(var i=0; i<len; i++) {
|
|
out[i] = seg_item[arr[i]];
|
|
}
|
|
return out;
|
|
}
|
|
|
|
function getGripContainer() {
|
|
var c = getElem("pathpointgrip_container");
|
|
if (!c) {
|
|
var parent = getElem("selectorParentGroup");
|
|
c = parent.appendChild(document.createElementNS(svgns, "g"));
|
|
c.id = "pathpointgrip_container";
|
|
}
|
|
return c;
|
|
}
|
|
|
|
var addPointGrip = function(index, x, y) {
|
|
// create the container of all the point grips
|
|
var pointGripContainer = getGripContainer();
|
|
|
|
var pointGrip = getElem("pathpointgrip_"+index);
|
|
// create it
|
|
if (!pointGrip) {
|
|
pointGrip = document.createElementNS(svgns, "circle");
|
|
assignAttributes(pointGrip, {
|
|
'id': "pathpointgrip_" + index,
|
|
'display': "none",
|
|
'r': 4,
|
|
'fill': "#0FF",
|
|
'stroke': "#00F",
|
|
'stroke-width': 2,
|
|
'cursor': 'move',
|
|
'style': 'pointer-events:all',
|
|
'xlink:title': uiStrings.pathNodeTooltip
|
|
});
|
|
pointGrip = pointGripContainer.appendChild(pointGrip);
|
|
|
|
var grip = $('#pathpointgrip_'+index);
|
|
grip.dblclick(function() {
|
|
path.setSegType();
|
|
});
|
|
}
|
|
if(x && y) {
|
|
// set up the point grip element and display it
|
|
assignAttributes(pointGrip, {
|
|
'cx': x,
|
|
'cy': y,
|
|
'display': "inline"
|
|
});
|
|
}
|
|
return pointGrip;
|
|
};
|
|
|
|
var getPointGrip = function(seg, update) {
|
|
var index = seg.index;
|
|
var pointGrip = addPointGrip(index);
|
|
|
|
if(update) {
|
|
var pt = getGripPt(seg);
|
|
assignAttributes(pointGrip, {
|
|
'cx': pt.x,
|
|
'cy': pt.y,
|
|
'display': "inline"
|
|
});
|
|
}
|
|
|
|
return pointGrip;
|
|
}
|
|
|
|
var getSegSelector = function(seg, update) {
|
|
var index = seg.index;
|
|
var segLine = getElem("segline_" + index);
|
|
if(!segLine) {
|
|
var pointGripContainer = getGripContainer();
|
|
// create segline
|
|
segLine = document.createElementNS(svgns, "path");
|
|
assignAttributes(segLine, {
|
|
'id': "segline_" + index,
|
|
'display': 'none',
|
|
'fill': "none",
|
|
'stroke': "#0FF",
|
|
'stroke-width': 2,
|
|
'style':'pointer-events:none',
|
|
'd': 'M0,0 0,0'
|
|
});
|
|
pointGripContainer.appendChild(segLine);
|
|
}
|
|
|
|
if(update) {
|
|
var prev = seg.prev;
|
|
if(!prev) return segLine;
|
|
|
|
var pt = getGripPt(prev);
|
|
// Set start point
|
|
replacePathSeg(2, 0, [pt.x, pt.y], segLine);
|
|
|
|
var pts = ptObjToArr(seg.type, seg.item, true);
|
|
for(var i=0; i < pts.length; i+=2) {
|
|
var pt = getGripPt(seg, {x:pts[i], y:pts[i+1]});
|
|
pts[i] = pt.x;
|
|
pts[i+1] = pt.y;
|
|
}
|
|
|
|
replacePathSeg(seg.type, 1, pts, segLine);
|
|
}
|
|
return segLine;
|
|
}
|
|
|
|
var getControlPoints = function(seg) {
|
|
var item = seg.item;
|
|
var index = seg.index;
|
|
if(!("x1" in item) || !("x2" in item)) return null;
|
|
var cpt = {};
|
|
var pointGripContainer = getGripContainer();
|
|
|
|
// Note that this is intentionally not seg.prev.item
|
|
var prev = path.segs[index-1].item;
|
|
|
|
var seg_items = [prev, item];
|
|
|
|
for(var i=1; i<3; i++) {
|
|
var id = index + 'c' + i;
|
|
var ctrlLine = cpt['c' + i + '_line'] = getElem("ctrlLine_"+id);
|
|
|
|
if(!ctrlLine) {
|
|
ctrlLine = document.createElementNS(svgns, "line");
|
|
assignAttributes(ctrlLine, {
|
|
'id': "ctrlLine_"+id,
|
|
'stroke': "#555",
|
|
'stroke-width': 1,
|
|
"style": "pointer-events:none"
|
|
});
|
|
pointGripContainer.appendChild(ctrlLine);
|
|
}
|
|
|
|
var pt = getGripPt(seg, {x:item['x' + i], y:item['y' + i]});
|
|
var gpt = getGripPt(seg, {x:seg_items[i-1].x, y:seg_items[i-1].y});
|
|
|
|
assignAttributes(ctrlLine, {
|
|
'x1': pt.x,
|
|
'y1': pt.y,
|
|
'x2': gpt.x,
|
|
'y2': gpt.y,
|
|
'display': "inline"
|
|
});
|
|
|
|
cpt['c' + i + '_line'] = ctrlLine;
|
|
|
|
var pointGrip = cpt['c' + i] = getElem("ctrlpointgrip_"+id);
|
|
// create it
|
|
if (!pointGrip) {
|
|
pointGrip = document.createElementNS(svgns, "circle");
|
|
assignAttributes(pointGrip, {
|
|
'id': "ctrlpointgrip_" + id,
|
|
'display': "none",
|
|
'r': 4,
|
|
'fill': "#0FF",
|
|
'stroke': "#55F",
|
|
'stroke-width': 1,
|
|
'cursor': 'move',
|
|
'style': 'pointer-events:all',
|
|
'xlink:title': uiStrings.pathCtrlPtTooltip
|
|
});
|
|
pointGripContainer.appendChild(pointGrip);
|
|
}
|
|
|
|
assignAttributes(pointGrip, {
|
|
'cx': pt.x,
|
|
'cy': pt.y,
|
|
'display': "inline"
|
|
});
|
|
cpt['c' + i] = pointGrip;
|
|
}
|
|
return cpt;
|
|
}
|
|
|
|
function getGripPt(seg, alt_pt) {
|
|
var out = {
|
|
x: alt_pt? alt_pt.x : seg.item.x,
|
|
y: alt_pt? alt_pt.y : seg.item.y
|
|
}, path = seg.path;
|
|
|
|
|
|
if(path.matrix) {
|
|
var pt = transformPoint(out.x, out.y, path.matrix);
|
|
out = pt;
|
|
}
|
|
|
|
out.x *= current_zoom;
|
|
out.y *= current_zoom;
|
|
|
|
return out;
|
|
}
|
|
|
|
function getPointFromGrip(pt, path) {
|
|
var out = {
|
|
x: pt.x,
|
|
y: pt.y
|
|
}
|
|
|
|
if(path.matrix) {
|
|
var pt = transformPoint(out.x, out.y, path.imatrix);
|
|
out.x = pt.x;
|
|
out.y = pt.y;
|
|
}
|
|
|
|
out.x /= current_zoom;
|
|
out.y /= current_zoom;
|
|
|
|
return out;
|
|
}
|
|
|
|
function Segment(index, item) {
|
|
var s = this;
|
|
|
|
s.index = index;
|
|
s.selected = false;
|
|
s.type = item.pathSegType;
|
|
var grip;
|
|
|
|
s.addGrip = function() {
|
|
grip = s.ptgrip = getPointGrip(s, true);
|
|
s.ctrlpts = getControlPoints(s, true);
|
|
s.segsel = getSegSelector(s, true);
|
|
}
|
|
|
|
s.item = item;
|
|
s.show = function(y) {
|
|
if(grip) {
|
|
grip.setAttribute("display", y?"inline":"none");
|
|
s.segsel.setAttribute("display", y?"inline":"none");
|
|
|
|
// Show/hide all control points if available
|
|
s.showCtrlPts(y);
|
|
}
|
|
}
|
|
s.select = function(y) {
|
|
if(grip) {
|
|
grip.setAttribute("stroke", y?"#0FF":"#00F");
|
|
s.segsel.setAttribute("display", y?"inline":"none");
|
|
if(s.ctrlpts) {
|
|
s.selectCtrls(y);
|
|
}
|
|
s.selected = y;
|
|
}
|
|
}
|
|
s.selectCtrls = function(y) {
|
|
$('#ctrlpointgrip_' + s.index + 'c1, #ctrlpointgrip_' + s.index + 'c2').attr('fill',y?'#0FF':'#EEE');
|
|
}
|
|
s.update = function(full) {
|
|
item = s.item;
|
|
if(grip) {
|
|
var pt = getGripPt(s);
|
|
assignAttributes(grip, {
|
|
'cx': pt.x,
|
|
'cy': pt.y
|
|
});
|
|
|
|
getSegSelector(s, true);
|
|
|
|
if(s.ctrlpts) {
|
|
if(full) {
|
|
s.item = path.elem.pathSegList.getItem(s.index);
|
|
s.type = s.item.pathSegType;
|
|
}
|
|
getControlPoints(s);
|
|
}
|
|
// this.segsel.setAttribute("display", y?"inline":"none");
|
|
}
|
|
}
|
|
s.move = function(dx, dy) {
|
|
var item = s.item;
|
|
|
|
var cur = s;
|
|
|
|
if(cur.ctrlpts) {
|
|
var cur_pts = [item.x += dx, item.y += dy,
|
|
item.x1, item.y1, item.x2 += dx, item.y2 += dy];
|
|
} else {
|
|
var cur_pts = [item.x += dx, item.y += dy];
|
|
}
|
|
replacePathSeg(cur.type, cur.index, cur_pts);
|
|
|
|
if(s.next && s.next.ctrlpts) {
|
|
var next = s.next.item;
|
|
var next_pts = [next.x, next.y,
|
|
next.x1 += dx, next.y1 += dy, next.x2, next.y2];
|
|
replacePathSeg(s.next.type, s.next.index, next_pts);
|
|
}
|
|
|
|
if(s.mate) {
|
|
// The last point of a closed subpath has a "mate",
|
|
// which is the "M" segment of the subpath
|
|
var item = s.mate.item;
|
|
var pts = [item.x += dx, item.y += dy];
|
|
replacePathSeg(s.mate.type, s.mate.index, pts);
|
|
// Has no grip, so does not need "updating"?
|
|
}
|
|
|
|
s.update(true);
|
|
if(s.next) s.next.update(true);
|
|
}
|
|
s.setLinked = function(num) {
|
|
var seg, anum, pt;
|
|
if(num == 2) {
|
|
anum = 1;
|
|
seg = s.next;
|
|
if(!seg) return;
|
|
pt = s.item;
|
|
} else {
|
|
anum = 2;
|
|
seg = s.prev;
|
|
if(!seg) return;
|
|
pt = seg.item;
|
|
}
|
|
var item = seg.item;
|
|
|
|
item['x' + anum] = pt.x + (pt.x - s.item['x' + num]);
|
|
item['y' + anum] = pt.y + (pt.y - s.item['y' + num]);
|
|
|
|
var pts = [item.x,item.y,
|
|
item.x1,item.y1, item.x2,item.y2];
|
|
|
|
replacePathSeg(seg.type, seg.index, pts);
|
|
seg.update(true);
|
|
|
|
}
|
|
s.moveCtrl = function(num, dx, dy) {
|
|
var item = s.item;
|
|
|
|
item['x' + num] += dx;
|
|
item['y' + num] += dy;
|
|
|
|
var pts = [item.x,item.y,
|
|
item.x1,item.y1, item.x2,item.y2];
|
|
|
|
replacePathSeg(s.type, s.index, pts);
|
|
s.update(true);
|
|
}
|
|
s.setType = function(new_type, pts) {
|
|
replacePathSeg(new_type, index, pts);
|
|
s.type = new_type;
|
|
s.item = path.elem.pathSegList.getItem(index);
|
|
s.showCtrlPts(new_type === 6);
|
|
s.ctrlpts = getControlPoints(s);
|
|
s.update(true);
|
|
}
|
|
s.showCtrlPts = function(y) {
|
|
if(s.ctrlpts) {
|
|
for (var o in s.ctrlpts) {
|
|
s.ctrlpts[o].setAttribute("display", y?"inline":"none");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function Path(elem) {
|
|
if(!elem || elem.tagName !== "path") return false;
|
|
|
|
var p = path = this;
|
|
this.elem = elem;
|
|
this.segs = [];
|
|
this.selected_pts = [];
|
|
|
|
// Reset path data
|
|
this.init = function() {
|
|
// Hide all grips, etc
|
|
$(getGripContainer()).find("*").attr("display", "none");
|
|
var segList = elem.pathSegList;
|
|
var len = segList.numberOfItems;
|
|
p.segs = [];
|
|
p.selected_pts = [];
|
|
|
|
// Set up segs array
|
|
for(var i=0; i < len; i++) {
|
|
var item = segList.getItem(i);
|
|
var segment = new Segment(i, item);
|
|
segment.path = p;
|
|
p.segs.push(segment);
|
|
}
|
|
|
|
var segs = p.segs;
|
|
var start_i = null;
|
|
|
|
for(var i=0; i < len; i++) {
|
|
var seg = segs[i];
|
|
var next_seg = (i+1) >= len ? null : segs[i+1];
|
|
var prev_seg = (i-1) < 0 ? null : segs[i-1];
|
|
|
|
if(seg.type === 2) {
|
|
if(prev_seg && prev_seg.type !== 1) {
|
|
// New sub-path, last one is open,
|
|
// so add a grip to last sub-path's first point
|
|
var start_seg = segs[start_i];
|
|
start_seg.next = segs[start_i+1];
|
|
start_seg.next.prev = start_seg;
|
|
start_seg.addGrip();
|
|
}
|
|
// Remember that this is a starter seg
|
|
start_i = i;
|
|
} else if(next_seg && next_seg.type === 1) {
|
|
// This is the last real segment of a closed sub-path
|
|
// Next is first seg after "M"
|
|
seg.next = segs[start_i+1];
|
|
|
|
// First seg after "M"'s prev is this
|
|
seg.next.prev = seg;
|
|
seg.mate = segs[start_i];
|
|
seg.addGrip();
|
|
if(!p.first_seg) {
|
|
p.first_seg = seg;
|
|
}
|
|
} else if(!next_seg) {
|
|
if(seg.type !== 1) {
|
|
// Last seg, doesn't close so add a grip
|
|
// to last sub-path's first point
|
|
var start_seg = segs[start_i];
|
|
start_seg.next = segs[start_i+1];
|
|
start_seg.next.prev = start_seg;
|
|
start_seg.addGrip();
|
|
seg.addGrip();
|
|
|
|
if(!p.first_seg) {
|
|
// Open path, so set first as real first and add grip
|
|
p.first_seg = segs[start_i];
|
|
}
|
|
}
|
|
} else if(seg.type !== 1){
|
|
// Regular segment, so add grip and its "next"
|
|
seg.addGrip();
|
|
|
|
// Don't set its "next" if it's an "M"
|
|
if(next_seg && next_seg.type !== 2) {
|
|
seg.next = next_seg;
|
|
seg.next.prev = seg;
|
|
}
|
|
}
|
|
}
|
|
return p;
|
|
}
|
|
|
|
this.init();
|
|
|
|
// Update position of all points
|
|
this.update = function() {
|
|
if(canvas.getRotationAngle(p.elem)) {
|
|
var tlist = canvas.getTransformList(path.elem);
|
|
p.matrix = transformListToTransform(tlist).matrix;
|
|
p.imatrix = p.matrix.inverse();
|
|
}
|
|
|
|
p.eachSeg(function(i) {
|
|
this.item = elem.pathSegList.getItem(i);
|
|
this.update();
|
|
});
|
|
|
|
return p;
|
|
}
|
|
|
|
this.eachSeg = function(fn) {
|
|
var len = p.segs.length
|
|
for(var i=0; i < len; i++) {
|
|
fn.call(p.segs[i], i);
|
|
}
|
|
}
|
|
|
|
this.addSeg = function(index) {
|
|
// Adds a new segment
|
|
var seg = p.segs[index];
|
|
var prev = seg.prev;
|
|
|
|
var new_x = (seg.item.x + prev.item.x) / 2;
|
|
var new_y = (seg.item.y + prev.item.y) / 2;
|
|
|
|
var list = elem.pathSegList;
|
|
var newseg = elem.createSVGPathSegLinetoAbs(new_x, new_y);
|
|
if(support.pathInsertItemBefore) {
|
|
list.insertItemBefore(newseg, index);
|
|
} else {
|
|
insertItemBefore(elem, newseg, index);
|
|
}
|
|
|
|
}
|
|
|
|
this.deleteSeg = function(index) {
|
|
var seg = p.segs[index];
|
|
var list = elem.pathSegList;
|
|
|
|
seg.show(false);
|
|
var next = seg.next;
|
|
if(seg.mate) {
|
|
// Make the next point be the "M" point
|
|
var pt = [next.item.x, next.item.y];
|
|
replacePathSeg(2, next.index, pt);
|
|
|
|
// Reposition last node
|
|
replacePathSeg(4, seg.index, pt);
|
|
|
|
list.removeItem(seg.mate.index);
|
|
} else if(!seg.prev) {
|
|
// First node of open path, make next point the M
|
|
var item = seg.item;
|
|
var pt = [next.item.x, next.item.y];
|
|
replacePathSeg(2, seg.next.index, pt);
|
|
list.removeItem(index);
|
|
|
|
} else {
|
|
list.removeItem(index);
|
|
}
|
|
}
|
|
|
|
this.endChanges = function(text) {
|
|
if(isWebkit) resetD(p.elem);
|
|
var cmd = new ChangeElementCommand(elem, {d: p.last_d}, text);
|
|
addCommandToHistory(cmd);
|
|
call("changed", [elem]);
|
|
}
|
|
|
|
|
|
this.addPtsToSelection = function(indexes) {
|
|
if(!$.isArray(indexes)) indexes = [indexes];
|
|
for(var i=0; i< indexes.length; i++) {
|
|
var index = indexes[i];
|
|
var seg = p.segs[index];
|
|
if(seg.ptgrip) {
|
|
if($.inArray(index, p.selected_pts) == -1 && index >= 0) {
|
|
p.selected_pts.push(index);
|
|
}
|
|
}
|
|
};
|
|
p.selected_pts.sort();
|
|
var i = p.selected_pts.length,
|
|
grips = new Array(i);
|
|
// Loop through points to be selected and highlight each
|
|
while(i--) {
|
|
var pt = p.selected_pts[i];
|
|
var seg = p.segs[pt];
|
|
seg.select(true);
|
|
grips[i] = seg.ptgrip;
|
|
}
|
|
pathActions.canDeleteNodes = true;
|
|
call("selected", grips);
|
|
}
|
|
|
|
this.removePtFromSelection = function(index) {
|
|
var pos = $.inArray(index, p.selected_pts);
|
|
if(pos == -1) {
|
|
return;
|
|
}
|
|
p.segs[index].select(false);
|
|
p.selected_pts.splice(pos, 1);
|
|
}
|
|
|
|
|
|
this.clearSelection = function() {
|
|
p.eachSeg(function(i) {
|
|
this.select(false);
|
|
});
|
|
p.selected_pts = [];
|
|
}
|
|
|
|
this.selectPt = function(pt, ctrl_num) {
|
|
p.clearSelection();
|
|
if(pt == null) {
|
|
p.eachSeg(function(i) {
|
|
if(this.prev) {
|
|
pt = i;
|
|
}
|
|
});
|
|
}
|
|
p.addPtsToSelection(pt);
|
|
if(ctrl_num) {
|
|
p.dragctrl = ctrl_num;
|
|
|
|
if(link_control_pts) {
|
|
p.segs[pt].setLinked(ctrl_num);
|
|
}
|
|
}
|
|
}
|
|
|
|
this.storeD = function() {
|
|
this.last_d = elem.getAttribute('d');
|
|
}
|
|
|
|
this.show = function(y) {
|
|
// Shows this path's segment grips
|
|
p.eachSeg(function() {
|
|
this.show(y);
|
|
});
|
|
if(y) {
|
|
p.selectPt(p.first_seg.index);
|
|
}
|
|
return p;
|
|
}
|
|
|
|
// Move selected points
|
|
this.movePts = function(d_x, d_y) {
|
|
var i = p.selected_pts.length;
|
|
while(i--) {
|
|
var seg = p.segs[p.selected_pts[i]];
|
|
seg.move(d_x, d_y);
|
|
}
|
|
}
|
|
|
|
this.moveCtrl = function(d_x, d_y) {
|
|
var seg = p.segs[p.selected_pts[0]];
|
|
seg.moveCtrl(p.dragctrl, d_x, d_y);
|
|
if(link_control_pts) {
|
|
seg.setLinked(p.dragctrl);
|
|
}
|
|
}
|
|
|
|
this.setSegType = function(new_type) {
|
|
p.storeD();
|
|
var i = p.selected_pts.length;
|
|
var text;
|
|
while(i--) {
|
|
var sel_pt = p.selected_pts[i];
|
|
|
|
// Selected seg
|
|
var cur = p.segs[sel_pt];
|
|
var prev = cur.prev;
|
|
if(!prev) continue;
|
|
|
|
if(!new_type) { // double-click, so just toggle
|
|
text = "Toggle Path Segment Type";
|
|
|
|
// Toggle segment to curve/straight line
|
|
var old_type = cur.type;
|
|
|
|
new_type = (old_type == 6) ? 4 : 6;
|
|
}
|
|
|
|
new_type = new_type-0;
|
|
|
|
var cur_x = cur.item.x;
|
|
var cur_y = cur.item.y;
|
|
var prev_x = prev.item.x;
|
|
var prev_y = prev.item.y;
|
|
var points;
|
|
switch ( new_type ) {
|
|
case 6:
|
|
if(cur.olditem) {
|
|
var old = cur.olditem;
|
|
points = [cur_x,cur_y, old.x1,old.y1, old.x2,old.y2];
|
|
} else {
|
|
var diff_x = cur_x - prev_x;
|
|
var diff_y = cur_y - prev_y;
|
|
// get control points from straight line segment
|
|
var ct1_x = (prev_x + (diff_y/2));
|
|
var ct1_y = (prev_y - (diff_x/2));
|
|
var ct2_x = (cur_x + (diff_y/2));
|
|
var ct2_y = (cur_y - (diff_x/2));
|
|
points = [cur_x,cur_y, ct1_x,ct1_y, ct2_x,ct2_y];
|
|
}
|
|
break;
|
|
case 4:
|
|
points = [cur_x,cur_y];
|
|
|
|
// Store original prevve segment nums
|
|
cur.olditem = cur.item;
|
|
break;
|
|
}
|
|
|
|
cur.setType(new_type, points);
|
|
}
|
|
path.endChanges(text);
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
function getPath(elem) {
|
|
var p = pathData[elem.id];
|
|
if(!p) p = pathData[elem.id] = new Path(elem);
|
|
return p;
|
|
}
|
|
|
|
|
|
var pathFuncs = [],
|
|
current_path = null,
|
|
current_path_pts = [],
|
|
link_control_pts = false,
|
|
hasMoved = false;
|
|
|
|
// This function converts a polyline (created by the fh_path tool) into
|
|
// a path element and coverts every three line segments into a single bezier
|
|
// curve in an attempt to smooth out the free-hand
|
|
var smoothPolylineIntoPath = function(element) {
|
|
var points = element.points;
|
|
var N = points.numberOfItems;
|
|
if (N >= 4) {
|
|
// loop through every 3 points and convert to a cubic bezier curve segment
|
|
//
|
|
// NOTE: this is cheating, it means that every 3 points has the potential to
|
|
// be a corner instead of treating each point in an equal manner. In general,
|
|
// this technique does not look that good.
|
|
//
|
|
// I am open to better ideas!
|
|
//
|
|
// Reading:
|
|
// - http://www.efg2.com/Lab/Graphics/Jean-YvesQueinecBezierCurves.htm
|
|
// - http://www.codeproject.com/KB/graphics/BezierSpline.aspx?msg=2956963
|
|
// - http://www.ian-ko.com/ET_GeoWizards/UserGuide/smooth.htm
|
|
// - http://www.cs.mtu.edu/~shene/COURSES/cs3621/NOTES/spline/Bezier/bezier-der.html
|
|
var curpos = points.getItem(0), prevCtlPt = null;
|
|
var d = [];
|
|
d.push(["M",curpos.x,",",curpos.y," C"].join(""));
|
|
for (var i = 1; i <= (N-4); i += 3) {
|
|
var ct1 = points.getItem(i);
|
|
var ct2 = points.getItem(i+1);
|
|
var end = points.getItem(i+2);
|
|
|
|
// if the previous segment had a control point, we want to smooth out
|
|
// the control points on both sides
|
|
if (prevCtlPt) {
|
|
var newpts = smoothControlPoints( prevCtlPt, ct1, curpos );
|
|
if (newpts && newpts.length == 2) {
|
|
var prevArr = d[d.length-1].split(',');
|
|
prevArr[2] = newpts[0].x;
|
|
prevArr[3] = newpts[0].y;
|
|
d[d.length-1] = prevArr.join(',');
|
|
ct1 = newpts[1];
|
|
}
|
|
}
|
|
|
|
d.push([ct1.x,ct1.y,ct2.x,ct2.y,end.x,end.y].join(','));
|
|
|
|
curpos = end;
|
|
prevCtlPt = ct2;
|
|
}
|
|
// handle remaining line segments
|
|
d.push("L");
|
|
for(;i < N;++i) {
|
|
var pt = points.getItem(i);
|
|
d.push([pt.x,pt.y].join(","));
|
|
}
|
|
d = d.join(" ");
|
|
|
|
// create new path element
|
|
element = addSvgElementFromJson({
|
|
"element": "path",
|
|
"attr": {
|
|
"id": getId(),
|
|
"d": d,
|
|
"fill": "none",
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": cur_shape.stroke_width,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"opacity": cur_shape.opacity,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"fill-opacity": cur_shape.fill_opacity,
|
|
"style": "pointer-events:inherit"
|
|
}
|
|
});
|
|
call("changed",[element]);
|
|
}
|
|
return element;
|
|
};
|
|
|
|
// This replaces the segment at the given index. Type is given as number.
|
|
var replacePathSeg = function(type, index, pts, elem) {
|
|
var path = elem || retPath().elem;
|
|
var func = 'createSVGPathSeg' + pathFuncs[type];
|
|
var seg = path[func].apply(path, pts);
|
|
|
|
if(support.pathReplaceItem) {
|
|
path.pathSegList.replaceItem(seg, index);
|
|
} else {
|
|
var segList = path.pathSegList;
|
|
var len = segList.numberOfItems;
|
|
var arr = [];
|
|
for(var i=0; i<len; i++) {
|
|
var cur_seg = segList.getItem(i);
|
|
arr.push(cur_seg)
|
|
}
|
|
segList.clear();
|
|
for(var i=0; i<len; i++) {
|
|
if(i == index) {
|
|
segList.appendItem(seg);
|
|
} else {
|
|
segList.appendItem(arr[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the path was rotated, we must now pay the piper:
|
|
// Every path point must be rotated into the rotated coordinate system of
|
|
// its old center, then determine the new center, then rotate it back
|
|
// This is because we want the path to remember its rotation
|
|
|
|
// TODO: This is still using ye olde transform methods, can probably
|
|
// be optimized or even taken care of by recalculateDimensions
|
|
var recalcRotatedPath = function() {
|
|
var current_path = path.elem;
|
|
var angle = canvas.getRotationAngle(current_path, true);
|
|
if(!angle) return;
|
|
selectedBBoxes[0] = path.oldbbox;
|
|
var box = canvas.getBBox(current_path),
|
|
oldbox = selectedBBoxes[0],
|
|
oldcx = oldbox.x + oldbox.width/2,
|
|
oldcy = oldbox.y + oldbox.height/2,
|
|
newcx = box.x + box.width/2,
|
|
newcy = box.y + box.height/2,
|
|
|
|
// un-rotate the new center to the proper position
|
|
dx = newcx - oldcx,
|
|
dy = newcy - oldcy,
|
|
r = Math.sqrt(dx*dx + dy*dy),
|
|
theta = Math.atan2(dy,dx) + angle;
|
|
|
|
newcx = r * Math.cos(theta) + oldcx;
|
|
newcy = r * Math.sin(theta) + oldcy;
|
|
|
|
var getRotVals = function(x, y) {
|
|
dx = x - oldcx;
|
|
dy = y - oldcy;
|
|
|
|
// rotate the point around the old center
|
|
r = Math.sqrt(dx*dx + dy*dy);
|
|
theta = Math.atan2(dy,dx) + angle;
|
|
dx = r * Math.cos(theta) + oldcx;
|
|
dy = r * Math.sin(theta) + oldcy;
|
|
|
|
// dx,dy should now hold the actual coordinates of each
|
|
// point after being rotated
|
|
|
|
// now we want to rotate them around the new center in the reverse direction
|
|
dx -= newcx;
|
|
dy -= newcy;
|
|
|
|
r = Math.sqrt(dx*dx + dy*dy);
|
|
theta = Math.atan2(dy,dx) - angle;
|
|
|
|
return {'x':(r * Math.cos(theta) + newcx)/1,
|
|
'y':(r * Math.sin(theta) + newcy)/1};
|
|
}
|
|
|
|
var list = current_path.pathSegList,
|
|
i = list.numberOfItems;
|
|
while (i) {
|
|
i -= 1;
|
|
var seg = list.getItem(i),
|
|
type = seg.pathSegType;
|
|
if(type == 1) continue;
|
|
|
|
var rvals = getRotVals(seg.x,seg.y),
|
|
points = [rvals.x, rvals.y];
|
|
if(seg.x1 != null && seg.x2 != null) {
|
|
c_vals1 = getRotVals(seg.x1, seg.y1);
|
|
c_vals2 = getRotVals(seg.x2, seg.y2);
|
|
points.splice(points.length, 0, c_vals1.x , c_vals1.y, c_vals2.x, c_vals2.y);
|
|
}
|
|
replacePathSeg(type, i, points);
|
|
} // loop for each point
|
|
|
|
box = canvas.getBBox(current_path);
|
|
selectedBBoxes[0].x = box.x; selectedBBoxes[0].y = box.y;
|
|
selectedBBoxes[0].width = box.width; selectedBBoxes[0].height = box.height;
|
|
|
|
// now we must set the new transform to be rotated around the new center
|
|
var R_nc = svgroot.createSVGTransform(),
|
|
tlist = canvas.getTransformList(current_path);
|
|
R_nc.setRotate((angle * 180.0 / Math.PI), newcx, newcy);
|
|
tlist.replaceItem(R_nc,0);
|
|
}
|
|
|
|
return {
|
|
init: function() {
|
|
pathFuncs = [0,'ClosePath'];
|
|
var pathFuncsStrs = ['Moveto','Lineto','CurvetoCubic','CurvetoQuadratic','Arc','LinetoHorizontal','LinetoVertical','CurvetoCubicSmooth','CurvetoQuadraticSmooth'];
|
|
$.each(pathFuncsStrs,function(i,s){pathFuncs.push(s+'Abs');pathFuncs.push(s+'Rel');});
|
|
},
|
|
getPath: function() {
|
|
return path;
|
|
},
|
|
mouseDown: function(evt, mouse_target, start_x, start_y) {
|
|
if(current_mode == "path") return;
|
|
|
|
// TODO: Make sure current_path isn't null at this point
|
|
if(!path) return;
|
|
|
|
path.storeD();
|
|
|
|
var id = evt.target.id;
|
|
if (id.substr(0,14) == "pathpointgrip_") {
|
|
// Select this point
|
|
var cur_pt = path.cur_pt = parseInt(id.substr(14));
|
|
path.dragging = [start_x, start_y];
|
|
var seg = path.segs[cur_pt];
|
|
|
|
// only clear selection if shift is not pressed (otherwise, add
|
|
// node to selection)
|
|
if (!evt.shiftKey) {
|
|
if(path.selected_pts.length <= 1 || !seg.selected) {
|
|
path.clearSelection();
|
|
}
|
|
path.addPtsToSelection(cur_pt);
|
|
} else if(seg.selected) {
|
|
path.removePtFromSelection(cur_pt);
|
|
} else {
|
|
path.addPtsToSelection(cur_pt);
|
|
}
|
|
} else if(id.indexOf("ctrlpointgrip_") == 0) {
|
|
path.dragging = [start_x, start_y];
|
|
|
|
var parts = id.split('_')[1].split('c');
|
|
var cur_pt = parts[0]-0;
|
|
var ctrl_num = parts[1]-0;
|
|
path.selectPt(cur_pt, ctrl_num);
|
|
}
|
|
|
|
// Start selection box
|
|
if(!path.dragging) {
|
|
if (rubberBox == null) {
|
|
rubberBox = selectorManager.getRubberBandBox();
|
|
}
|
|
assignAttributes(rubberBox, {
|
|
'x': start_x * current_zoom,
|
|
'y': start_y * current_zoom,
|
|
'width': 0,
|
|
'height': 0,
|
|
'display': 'inline'
|
|
}, 100);
|
|
}
|
|
},
|
|
mouseMove: function(mouse_x, mouse_y) {
|
|
hasMoved = true;
|
|
if(current_mode == "path") {
|
|
var line = getElem("path_stretch_line");
|
|
if (line) {
|
|
line.setAttribute("x2", mouse_x);
|
|
line.setAttribute("y2", mouse_y);
|
|
}
|
|
return;
|
|
}
|
|
// if we are dragging a point, let's move it
|
|
if (path.dragging) {
|
|
var pt = getPointFromGrip({
|
|
x: path.dragging[0],
|
|
y: path.dragging[1]
|
|
}, path);
|
|
var mpt = getPointFromGrip({
|
|
x: mouse_x,
|
|
y: mouse_y
|
|
}, path);
|
|
var diff_x = mpt.x - pt.x;
|
|
var diff_y = mpt.y - pt.y;
|
|
path.dragging = [mouse_x, mouse_y];
|
|
|
|
if(path.dragctrl) {
|
|
path.moveCtrl(diff_x, diff_y);
|
|
} else {
|
|
path.movePts(diff_x, diff_y);
|
|
}
|
|
} else {
|
|
path.selected_pts = [];
|
|
path.eachSeg(function(i) {
|
|
var seg = this;
|
|
if(!seg.next && !seg.prev) return;
|
|
|
|
var item = seg.item;
|
|
var rbb = rubberBox.getBBox();
|
|
|
|
var pt = getGripPt(seg);
|
|
var pt_bb = {
|
|
x: pt.x,
|
|
y: pt.y,
|
|
width: 0,
|
|
height: 0
|
|
};
|
|
|
|
var sel = Utils.rectsIntersect(rbb, pt_bb);
|
|
|
|
this.select(sel);
|
|
//Note that addPtsToSelection is not being run
|
|
if(sel) path.selected_pts.push(seg.index);
|
|
});
|
|
|
|
}
|
|
},
|
|
mouseUp: function(evt, element, mouse_x, mouse_y) {
|
|
|
|
// Create mode
|
|
if(current_mode == "path") {
|
|
var x = mouse_x/current_zoom,
|
|
y = mouse_y/current_zoom,
|
|
stretchy = getElem("path_stretch_line");
|
|
if (!stretchy) {
|
|
stretchy = document.createElementNS(svgns, "line");
|
|
assignAttributes(stretchy, {
|
|
'id': "path_stretch_line",
|
|
'stroke': "#22C",
|
|
'stroke-width': "0.5"
|
|
});
|
|
stretchy = getElem("selectorParentGroup").appendChild(stretchy);
|
|
}
|
|
stretchy.setAttribute("display", "inline");
|
|
|
|
var keep = null;
|
|
|
|
// if pts array is empty, create path element with M at current point
|
|
if (current_path_pts.length == 0) {
|
|
current_path_pts.push(x);
|
|
current_path_pts.push(y);
|
|
d_attr = "M" + x + "," + y + " ";
|
|
addSvgElementFromJson({
|
|
"element": "path",
|
|
"attr": {
|
|
"d": d_attr,
|
|
"id": getNextId(),
|
|
"fill": cur_shape.fill,
|
|
"fill-opacity": cur_shape.fill_opacity,
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": cur_shape.stroke_width,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"opacity": cur_shape.opacity / 2,
|
|
"style": "pointer-events:inherit"
|
|
}
|
|
});
|
|
// set stretchy line to first point
|
|
assignAttributes(stretchy, {
|
|
'x1': mouse_x,
|
|
'y1': mouse_y,
|
|
'x2': mouse_x,
|
|
'y2': mouse_y
|
|
});
|
|
var index = subpath ? path.segs.length : 0;
|
|
addPointGrip(index, mouse_x, mouse_y);
|
|
}
|
|
else {
|
|
// determine if we clicked on an existing point
|
|
var i = current_path_pts.length;
|
|
var FUZZ = 6/current_zoom;
|
|
var clickOnPoint = false;
|
|
while(i) {
|
|
i -= 2;
|
|
var px = current_path_pts[i], py = current_path_pts[i+1];
|
|
// found a matching point
|
|
if ( x >= (px-FUZZ) && x <= (px+FUZZ) && y >= (py-FUZZ) && y <= (py+FUZZ) ) {
|
|
clickOnPoint = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// get path element that we are in the process of creating
|
|
var id = getId();
|
|
|
|
// Remove previous path object if previously created
|
|
if(id in pathData) delete pathData[id];
|
|
|
|
var newpath = getElem(id);
|
|
|
|
var len = current_path_pts.length;
|
|
// if we clicked on an existing point, then we are done this path, commit it
|
|
// (i,i+1) are the x,y that were clicked on
|
|
if (clickOnPoint) {
|
|
// if clicked on any other point but the first OR
|
|
// the first point was clicked on and there are less than 3 points
|
|
// then leave the path open
|
|
// otherwise, close the path
|
|
if (i == 0 && len >= 6) {
|
|
// Create end segment
|
|
var abs_x = current_path_pts[0];
|
|
var abs_y = current_path_pts[1];
|
|
d_attr += ['L',abs_x,',',abs_y,'z'].join('');
|
|
newpath.setAttribute("d", d_attr);
|
|
} else if(len < 3) {
|
|
keep = false;
|
|
return keep;
|
|
}
|
|
$(stretchy).remove();
|
|
|
|
// this will signal to commit the path
|
|
element = newpath;
|
|
current_path_pts = [];
|
|
started = false;
|
|
|
|
if(subpath) {
|
|
var new_d = newpath.getAttribute("d");
|
|
var orig_d = $(path.elem).attr("d");
|
|
$(path.elem).attr("d", orig_d + new_d);
|
|
$(newpath).remove();
|
|
path.init();
|
|
pathActions.toEditMode(path.elem);
|
|
path.selectPt();
|
|
return false;
|
|
}
|
|
}
|
|
// else, create a new point, append to pts array, update path element
|
|
else {
|
|
// Checks if current target or parents are #svgcontent
|
|
if(!$.contains(container, evt.target)) {
|
|
// Clicked outside canvas, so don't make point
|
|
return false;
|
|
}
|
|
|
|
var lastx = current_path_pts[len-2], lasty = current_path_pts[len-1];
|
|
// we store absolute values in our path points array for easy checking above
|
|
current_path_pts.push(x);
|
|
current_path_pts.push(y);
|
|
d_attr += "L" + round(x) + "," + round(y) + " ";
|
|
|
|
newpath.setAttribute("d", d_attr);
|
|
|
|
// set stretchy line to latest point
|
|
assignAttributes(stretchy, {
|
|
'x1': mouse_x,
|
|
'y1': mouse_y,
|
|
'x2': mouse_x,
|
|
'y2': mouse_y
|
|
});
|
|
var index = (current_path_pts.length/2 - 1);
|
|
if(subpath) index += path.segs.length;
|
|
addPointGrip(index, mouse_x, mouse_y);
|
|
}
|
|
keep = true;
|
|
}
|
|
return {
|
|
keep: keep,
|
|
element: element
|
|
}
|
|
}
|
|
|
|
// Edit mode
|
|
|
|
if (path.dragging) {
|
|
var last_pt = path.cur_pt;
|
|
|
|
path.dragging = false;
|
|
path.dragctrl = false;
|
|
path.update();
|
|
|
|
|
|
if(hasMoved) {
|
|
path.endChanges("Move path point(s)");
|
|
}
|
|
|
|
if(!evt.shiftKey && !hasMoved) {
|
|
path.selectPt(last_pt);
|
|
}
|
|
}
|
|
else if(rubberBox && rubberBox.getAttribute('display') != 'none') {
|
|
// Done with multi-node-select
|
|
rubberBox.setAttribute("display", "none");
|
|
|
|
if(rubberBox.getAttribute('width') <= 2 && rubberBox.getAttribute('height') <= 2) {
|
|
pathActions.toSelectMode(evt.target);
|
|
}
|
|
|
|
// else, move back to select mode
|
|
} else {
|
|
pathActions.toSelectMode(evt.target);
|
|
}
|
|
hasMoved = false;
|
|
},
|
|
clearData: function() {
|
|
pathData = {};
|
|
},
|
|
toEditMode: function(element) {
|
|
path = getPath(element);
|
|
current_mode = "pathedit";
|
|
canvas.clearSelection();
|
|
path.show(true).update();
|
|
path.oldbbox = canvas.getBBox(path.elem);
|
|
subpath = false;
|
|
},
|
|
toSelectMode: function(elem) {
|
|
var selPath = (elem == path.elem);
|
|
current_mode = "select";
|
|
path.show(false);
|
|
current_path = false;
|
|
canvas.clearSelection();
|
|
|
|
if(path.matrix) {
|
|
// Rotated, so may need to re-calculate the center
|
|
recalcRotatedPath();
|
|
}
|
|
|
|
if(selPath) {
|
|
call("selected", [elem]);
|
|
canvas.addToSelection([elem], true);
|
|
}
|
|
},
|
|
addSubPath: function(on) {
|
|
if(on) {
|
|
// Internally we go into "path" mode, but in the UI it will
|
|
// still appear as if in "pathedit" mode.
|
|
current_mode = "path";
|
|
subpath = true;
|
|
} else {
|
|
pathActions.clear(true);
|
|
pathActions.toEditMode(path.elem);
|
|
}
|
|
},
|
|
select: function(target) {
|
|
if (current_path == target) {
|
|
pathActions.toEditMode(target);
|
|
current_mode = "pathedit";
|
|
} // going into pathedit mode
|
|
else {
|
|
current_path = target;
|
|
}
|
|
},
|
|
reorient: function() {
|
|
var elem = selectedElements[0];
|
|
if(!elem) return;
|
|
var angle = canvas.getRotationAngle(elem);
|
|
if(angle == 0) return;
|
|
|
|
var batchCmd = new BatchCommand("Reorient path");
|
|
var changes = {
|
|
d: elem.getAttribute('d'),
|
|
transform: elem.getAttribute('transform')
|
|
};
|
|
batchCmd.addSubCommand(new ChangeElementCommand(elem, changes));
|
|
canvas.clearSelection();
|
|
this.resetOrientation(elem);
|
|
addCommandToHistory(batchCmd);
|
|
|
|
getPath(elem).show(false);
|
|
|
|
this.clear();
|
|
|
|
canvas.addToSelection([elem], true);
|
|
call("changed", selectedElements);
|
|
},
|
|
|
|
clear: function(remove) {
|
|
if(remove && current_mode == "path") {
|
|
var elem = getElem(getId());
|
|
if(elem) elem.parentNode.removeChild(elem);
|
|
}
|
|
if(path) path.init().show(false);
|
|
current_path = null;
|
|
},
|
|
resetOrientation: function(path) {
|
|
if(path == null || path.nodeName != 'path') return false;
|
|
var tlist = canvas.getTransformList(path);
|
|
var m = transformListToTransform(tlist).matrix;
|
|
tlist.clear();
|
|
path.removeAttribute("transform");
|
|
var segList = path.pathSegList;
|
|
|
|
// Opera/win/non-EN throws an error here.
|
|
// TODO: Find out why!
|
|
try {
|
|
var len = segList.numberOfItems;
|
|
} catch(err) {
|
|
var fixed_d = pathActions.convertPath(path);
|
|
path.setAttribute('d', fixed_d);
|
|
segList = path.pathSegList;
|
|
var len = segList.numberOfItems;
|
|
}
|
|
for (var i = 0; i < len; ++i) {
|
|
var seg = segList.getItem(i);
|
|
var type = seg.pathSegType;
|
|
if(type == 1) continue;
|
|
var pts = [];
|
|
$.each(['',1,2], function(j, n) {
|
|
var x = seg['x'+n], y = seg['y'+n];
|
|
if(x && y) {
|
|
var pt = transformPoint(x, y, m);
|
|
pts.splice(pts.length, 0, pt.x, pt.y);
|
|
}
|
|
});
|
|
replacePathSeg(type, i, pts, path);
|
|
}
|
|
},
|
|
zoomChange: function() {
|
|
if(current_mode == "pathedit") {
|
|
path.update();
|
|
}
|
|
},
|
|
modeChange: function() {
|
|
// toss out half-drawn path
|
|
if (current_mode == "path" && current_path_pts.length > 0) {
|
|
var elem = getElem(getId());
|
|
elem.parentNode.removeChild(elem);
|
|
this.clear();
|
|
canvas.clearSelection();
|
|
started = false;
|
|
}
|
|
else if (current_mode == "pathedit") {
|
|
this.clear();
|
|
}
|
|
},
|
|
getNodePoint: function() {
|
|
var sel_pt = path.selected_pts.length ? path.selected_pts[0] : 1;
|
|
|
|
var seg = path.segs[sel_pt];
|
|
return {
|
|
x: seg.item.x,
|
|
y: seg.item.y,
|
|
type: seg.type
|
|
};
|
|
},
|
|
linkControlPoints: function(linkPoints) {
|
|
link_control_pts = linkPoints;
|
|
},
|
|
clonePathNode: function() {
|
|
path.storeD();
|
|
|
|
var sel_pts = path.selected_pts;
|
|
var segs = path.segs;
|
|
|
|
var i = sel_pts.length;
|
|
var nums = [];
|
|
|
|
while(i--) {
|
|
var pt = sel_pts[i];
|
|
path.addSeg(pt);
|
|
|
|
nums.push(pt + i);
|
|
nums.push(pt + i + 1);
|
|
}
|
|
path.init().addPtsToSelection(nums);
|
|
|
|
path.endChanges("Clone path node(s)");
|
|
},
|
|
deletePathNode: function() {
|
|
if(!pathActions.canDeleteNodes) return;
|
|
path.storeD();
|
|
|
|
var sel_pts = path.selected_pts;
|
|
var i = sel_pts.length;
|
|
|
|
while(i--) {
|
|
var pt = sel_pts[i];
|
|
path.deleteSeg(pt);
|
|
}
|
|
|
|
path.init();
|
|
var sel_pt = sel_pts[0]-1 > 0 ? sel_pts[0]-1 : 1;
|
|
|
|
path.clearSelection();
|
|
|
|
// TODO: Find right way to select point now
|
|
// path.selectPt(sel_pt);
|
|
if(window.opera) { // Opera repaints incorrectly
|
|
var cp = $(path.elem); cp.attr('d',cp.attr('d'));
|
|
}
|
|
path.endChanges("Delete path node(s)");
|
|
},
|
|
smoothPolylineIntoPath: smoothPolylineIntoPath,
|
|
setSegType: function(v) {
|
|
path.setSegType(v);
|
|
},
|
|
moveNode: function(attr, newValue) {
|
|
var sel_pts = path.selected_pts;
|
|
if(!sel_pts.length) return;
|
|
|
|
path.storeD();
|
|
|
|
// Get first selected point
|
|
var seg = path.segs[sel_pts[0]];
|
|
var diff = {x:0, y:0};
|
|
diff[attr] = newValue - seg.item[attr];
|
|
|
|
seg.move(diff.x, diff.y);
|
|
path.endChanges("Move path point");
|
|
},
|
|
fixEnd: function(elem) {
|
|
// Adds an extra segment if the last seg before a Z doesn't end
|
|
// at its M point
|
|
// M0,0 L0,100 L100,100 z
|
|
var segList = elem.pathSegList;
|
|
var len = segList.numberOfItems;
|
|
var last_m;
|
|
for (var i = 0; i < len; ++i) {
|
|
var item = segList.getItem(i);
|
|
if(item.pathSegType === 2) {
|
|
last_m = item;
|
|
}
|
|
|
|
if(item.pathSegType === 1) {
|
|
var prev = segList.getItem(i-1);
|
|
if(prev.x != last_m.x && prev.y != last_m.y) {
|
|
// Add an L segment here
|
|
var newseg = elem.createSVGPathSegLinetoAbs(last_m.x, last_m.y);
|
|
if(support.pathInsertItemBefore) {
|
|
segList.insertItemBefore(newseg, i);
|
|
} else {
|
|
insertItemBefore(elem, newseg, i);
|
|
}
|
|
// Can this be done better?
|
|
pathActions.fixEnd(elem);
|
|
break;
|
|
}
|
|
|
|
}
|
|
}
|
|
if(isWebkit) resetD(elem);
|
|
},
|
|
// Convert a path to one with only absolute or relative values
|
|
convertPath: function(path, toRel) {
|
|
var segList = path.pathSegList;
|
|
var len = segList.numberOfItems;
|
|
var curx = 0, cury = 0;
|
|
var d = "";
|
|
|
|
for (var i = 0; i < len; ++i) {
|
|
var seg = segList.getItem(i);
|
|
// if these properties are not in the segment, set them to zero
|
|
var x = seg.x || 0,
|
|
y = seg.y || 0,
|
|
x1 = seg.x1 || 0,
|
|
y1 = seg.y1 || 0,
|
|
x2 = seg.x2 || 0,
|
|
y2 = seg.y2 || 0;
|
|
|
|
var type = seg.pathSegType;
|
|
var letter = pathMap[type]['to'+(toRel?'Lower':'Upper')+'Case']();
|
|
var addToD = function(pnts, more, last) {
|
|
var str = '';
|
|
var more = more?' '+more.join(' '):'';
|
|
var last = last?shortFloat(last):'';
|
|
$.each(pnts, function(i, pnt) {
|
|
pnts[i] = shortFloat(pnt);
|
|
});
|
|
d += letter + pnts.join(' ') + more + last;
|
|
}
|
|
|
|
switch (type) {
|
|
case 1: // z,Z closepath (Z/z)
|
|
d += "z";
|
|
break;
|
|
case 12: // absolute horizontal line (H)
|
|
x -= curx;
|
|
case 13: // relative horizontal line (h)
|
|
if(toRel) {
|
|
curx += x;
|
|
} else {
|
|
x += curx;
|
|
curx = x;
|
|
}
|
|
addToD([[x]]);
|
|
break;
|
|
case 14: // absolute vertical line (V)
|
|
y -= cury;
|
|
case 15: // relative vertical line (v)
|
|
if(toRel) {
|
|
cury += y;
|
|
} else {
|
|
y += cury;
|
|
cury = y;
|
|
}
|
|
addToD([[y]]);
|
|
break;
|
|
case 2: // absolute move (M)
|
|
case 4: // absolute line (L)
|
|
case 18: // absolute smooth quad (T)
|
|
x -= curx;
|
|
y -= cury;
|
|
case 3: // relative move (m)
|
|
case 5: // relative line (l)
|
|
case 19: // relative smooth quad (t)
|
|
if(toRel) {
|
|
curx += x;
|
|
cury += y;
|
|
} else {
|
|
x += curx;
|
|
y += cury;
|
|
curx = x;
|
|
cury = y;
|
|
}
|
|
addToD([[x,y]]);
|
|
break;
|
|
case 6: // absolute cubic (C)
|
|
x -= curx; x1 -= curx; x2 -= curx;
|
|
y -= cury; y1 -= cury; y2 -= cury;
|
|
case 7: // relative cubic (c)
|
|
if(toRel) {
|
|
curx += x;
|
|
cury += y;
|
|
} else {
|
|
x += curx; x1 += curx; x2 += curx;
|
|
y += cury; y1 += cury; y2 += cury;
|
|
curx = x;
|
|
cury = y;
|
|
}
|
|
addToD([[x1,y1],[x2,y2],[x,y]]);
|
|
break;
|
|
case 8: // absolute quad (Q)
|
|
x -= curx; x1 -= curx;
|
|
y -= cury; y1 -= cury;
|
|
case 9: // relative quad (q)
|
|
if(toRel) {
|
|
curx += x;
|
|
cury += y;
|
|
} else {
|
|
x += curx; x1 += curx;
|
|
y += cury; y1 += cury;
|
|
curx = x;
|
|
cury = y;
|
|
}
|
|
addToD([[x1,y1],[x,y]]);
|
|
break;
|
|
case 10: // absolute elliptical arc (A)
|
|
x -= curx;
|
|
y -= cury;
|
|
case 11: // relative elliptical arc (a)
|
|
if(toRel) {
|
|
curx += x;
|
|
cury += y;
|
|
} else {
|
|
x += curx;
|
|
y += cury;
|
|
curx = x;
|
|
cury = y;
|
|
}
|
|
addToD([[seg.r1,seg.r2]], [
|
|
seg.angle,
|
|
(seg.largeArcFlag ? 1 : 0),
|
|
(seg.sweepFlag ? 1 : 0)
|
|
],[x,y]
|
|
);
|
|
break;
|
|
case 16: // absolute smooth cubic (S)
|
|
x -= curx; x2 -= curx;
|
|
y -= cury; y2 -= cury;
|
|
case 17: // relative smooth cubic (s)
|
|
if(toRel) {
|
|
curx += x;
|
|
cury += y;
|
|
} else {
|
|
x += curx; x2 += curx;
|
|
y += cury; y2 += cury;
|
|
curx = x;
|
|
cury = y;
|
|
}
|
|
addToD([[x2,y2],[x,y]]);
|
|
break;
|
|
} // switch on path segment type
|
|
} // for each segment
|
|
return d;
|
|
}
|
|
}
|
|
}();
|
|
|
|
pathActions.init();
|
|
this.pathActions = pathActions;
|
|
|
|
var shortFloat = function(val) {
|
|
var digits = save_options.round_digits;
|
|
if(!isNaN(val)) {
|
|
return Number(Number(val).toFixed(digits));
|
|
} else if($.isArray(val)) {
|
|
return shortFloat(val[0]) + ',' + shortFloat(val[1]);
|
|
}
|
|
}
|
|
|
|
// Convert an element to a path
|
|
this.convertToPath = function(elem, getBBox, angle) {
|
|
if(elem == null) {
|
|
var elems = selectedElements;
|
|
$.each(selectedElements, function(i, elem) {
|
|
if(elem) canvas.convertToPath(elem);
|
|
});
|
|
return;
|
|
}
|
|
|
|
if(!getBBox) {
|
|
var batchCmd = new BatchCommand("Convert element to Path");
|
|
}
|
|
|
|
var attrs = getBBox?{}:{
|
|
"fill": cur_shape.fill,
|
|
"fill-opacity": cur_shape.fill_opacity,
|
|
"stroke": cur_shape.stroke,
|
|
"stroke-width": cur_shape.stroke_width,
|
|
"stroke-dasharray": cur_shape.stroke_style,
|
|
"stroke-opacity": cur_shape.stroke_opacity,
|
|
"opacity": cur_shape.opacity,
|
|
"visibility":"hidden"
|
|
};
|
|
|
|
// any attribute on the element not covered by the above
|
|
// TODO: make this list global so that we can properly maintain it
|
|
// TODO: what about @transform, @clip-rule, @fill-rule, etc?
|
|
$.each(['marker-start', 'marker-end', 'marker-mid', 'filter', 'clip-path'], function() {
|
|
if (elem.getAttribute(this)) {
|
|
attrs[this] = elem.getAttribute(this);
|
|
}
|
|
});
|
|
|
|
var path = addSvgElementFromJson({
|
|
"element": "path",
|
|
"attr": attrs
|
|
});
|
|
|
|
var eltrans = elem.getAttribute("transform");
|
|
if(eltrans) {
|
|
path.setAttribute("transform",eltrans);
|
|
}
|
|
|
|
var id = elem.id;
|
|
var parent = elem.parentNode;
|
|
if(elem.nextSibling) {
|
|
parent.insertBefore(path, elem);
|
|
} else {
|
|
parent.appendChild(path);
|
|
}
|
|
|
|
var d = '';
|
|
|
|
var joinSegs = function(segs) {
|
|
$.each(segs, function(j, seg) {
|
|
var l = seg[0], pts = seg[1];
|
|
d += l;
|
|
for(var i=0; i < pts.length; i+=2) {
|
|
d += (pts[i] +','+pts[i+1]) + ' ';
|
|
}
|
|
});
|
|
}
|
|
|
|
// Possibly the cubed root of 6, but 1.81 works best
|
|
var num = 1.81;
|
|
|
|
switch (elem.tagName) {
|
|
case 'ellipse':
|
|
case 'circle':
|
|
var a = $(elem).attr(['rx', 'ry', 'cx', 'cy']);
|
|
var cx = a.cx, cy = a.cy, rx = a.rx, ry = a.ry;
|
|
if(elem.tagName == 'circle') {
|
|
rx = ry = $(elem).attr('r');
|
|
}
|
|
|
|
joinSegs([
|
|
['M',[(cx-rx),(cy)]],
|
|
['C',[(cx-rx),(cy-ry/num), (cx-rx/num),(cy-ry), (cx),(cy-ry)]],
|
|
['C',[(cx+rx/num),(cy-ry), (cx+rx),(cy-ry/num), (cx+rx),(cy)]],
|
|
['C',[(cx+rx),(cy+ry/num), (cx+rx/num),(cy+ry), (cx),(cy+ry)]],
|
|
['C',[(cx-rx/num),(cy+ry), (cx-rx),(cy+ry/num), (cx-rx),(cy)]],
|
|
['Z',[]]
|
|
]);
|
|
break;
|
|
case 'path':
|
|
d = elem.getAttribute('d');
|
|
break;
|
|
case 'line':
|
|
var a = $(elem).attr(["x1", "y1", "x2", "y2"]);
|
|
d = "M"+a.x1+","+a.y1+"L"+a.x2+","+a.y2;
|
|
break;
|
|
case 'polyline':
|
|
case 'polygon':
|
|
d = "M" + elem.getAttribute('points');
|
|
break;
|
|
case 'rect':
|
|
var r = $(elem).attr(['rx', 'ry']);
|
|
var rx = r.rx, ry = r.ry;
|
|
var b = elem.getBBox();
|
|
var x = b.x, y = b.y, w = b.width, h = b.height;
|
|
var num = 4-num; // Why? Because!
|
|
|
|
if(!rx && !ry) {
|
|
// Regular rect
|
|
joinSegs([
|
|
['M',[x, y]],
|
|
['L',[x+w, y]],
|
|
['L',[x+w, y+h]],
|
|
['L',[x, y+h]],
|
|
['L',[x, y]],
|
|
['Z',[]]
|
|
]);
|
|
} else {
|
|
joinSegs([
|
|
['M',[x, y+ry]],
|
|
['C',[x,y+ry/num, x+rx/num,y, x+rx,y]],
|
|
['L',[x+w-rx, y]],
|
|
['C',[x+w-rx/num,y, x+w,y+ry/num, x+w,y+ry]],
|
|
['L',[x+w, y+h-ry]],
|
|
['C',[x+w, y+h-ry/num, x+w-rx/num,y+h, x+w-rx,y+h]],
|
|
['L',[x+rx, y+h]],
|
|
['C',[x+rx/num, y+h, x,y+h-ry/num, x,y+h-ry]],
|
|
['L',[x, y+ry]],
|
|
['Z',[]]
|
|
]);
|
|
}
|
|
break;
|
|
default:
|
|
path.parentNode.removeChild(path);
|
|
break;
|
|
}
|
|
|
|
if(d) {
|
|
path.setAttribute('d',d);
|
|
}
|
|
|
|
if(!getBBox) {
|
|
// Replace the current element with the converted one
|
|
|
|
// Reorient if it has a matrix
|
|
if(eltrans) {
|
|
var tlist = canvas.getTransformList(path);
|
|
if(hasMatrixTransform(tlist)) {
|
|
pathActions.resetOrientation(path);
|
|
}
|
|
}
|
|
|
|
batchCmd.addSubCommand(new RemoveElementCommand(elem, parent));
|
|
batchCmd.addSubCommand(new InsertElementCommand(path));
|
|
|
|
canvas.clearSelection();
|
|
elem.parentNode.removeChild(elem)
|
|
path.setAttribute('id', id);
|
|
path.removeAttribute("visibility");
|
|
canvas.addToSelection([path], true);
|
|
|
|
addCommandToHistory(batchCmd);
|
|
|
|
} else {
|
|
// Get the correct BBox of the new path, then discard it
|
|
pathActions.resetOrientation(path);
|
|
var bb = false;
|
|
try {
|
|
bb = path.getBBox();
|
|
} catch(e) {
|
|
// Firefox fails
|
|
}
|
|
path.parentNode.removeChild(path);
|
|
return bb;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
// - in create mode, the element's opacity is set properly, we create an InsertElementCommand
|
|
// and store it on the Undo stack
|
|
// - in move/resize mode, the element's attributes which were affected by the move/resize are
|
|
// identified, a ChangeElementCommand is created and stored on the stack for those attrs
|
|
// this is done in when we recalculate the selected dimensions()
|
|
|
|
// public functions
|
|
|
|
// Group: Serialization
|
|
|
|
this.open = function() {
|
|
// Nothing by default, handled by optional widget/extension
|
|
};
|
|
|
|
// Function: save
|
|
// Serializes the current drawing into SVG XML text and returns it to the 'saved' handler.
|
|
// This function also includes the XML prolog. Clients of the SvgCanvas bind their save
|
|
// function to the 'saved' event.
|
|
//
|
|
// Returns:
|
|
// Nothing
|
|
this.save = function(opts) {
|
|
// remove the selected outline before serializing
|
|
this.clearSelection();
|
|
// Update save options if provided
|
|
if(opts) $.extend(save_options, opts);
|
|
save_options.apply = true;
|
|
|
|
// no need for doctype, see http://jwatt.org/svg/authoring/#doctype-declaration
|
|
var str = svgCanvasToString();
|
|
call("saved", str);
|
|
};
|
|
|
|
// Walks the tree and executes the callback on each element in a top-down fashion
|
|
var walkTree = function(elem, cbFn){
|
|
if (elem && elem.nodeType == 1) {
|
|
cbFn(elem);
|
|
var i = elem.childNodes.length;
|
|
while (i--) {
|
|
walkTree(elem.childNodes.item(i), cbFn);
|
|
}
|
|
}
|
|
};
|
|
// Walks the tree and executes the callback on each element in a depth-first fashion
|
|
var walkTreePost = function(elem, cbFn) {
|
|
if (elem && elem.nodeType == 1) {
|
|
var i = elem.childNodes.length;
|
|
while (i--) {
|
|
walkTree(elem.childNodes.item(i), cbFn);
|
|
}
|
|
cbFn(elem);
|
|
}
|
|
};
|
|
|
|
// Function: getSvgString
|
|
// Returns the current drawing as raw SVG XML text.
|
|
//
|
|
// Returns:
|
|
// The current drawing as raw SVG XML text.
|
|
this.getSvgString = function() {
|
|
save_options.apply = false;
|
|
return svgCanvasToString();
|
|
};
|
|
|
|
//function randomizeIds
|
|
// This function determines whether to add a nonce to the prefix, when
|
|
// generating IDs in SVG-Edit
|
|
//
|
|
// Parameters:
|
|
// an opional boolean, which, if true, adds a nonce to the prefix. Thus
|
|
// svgCanvas.randomizeIds() <==> svgCanvas.randomizeIds(true)
|
|
//
|
|
// if you're controlling SVG-Edit externally, and want randomized IDs, call
|
|
// this BEFORE calling svgCanvas.setSvgString
|
|
//
|
|
this.randomizeIds = function() {
|
|
if (arguments.length > 0 && arguments[0] == false) {
|
|
randomize_ids = false;
|
|
if (extensions["Arrows"]) call("unsetarrownonce") ;
|
|
} else {
|
|
randomize_ids = true;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Function: setSvgString
|
|
// This function sets the current drawing as the input SVG XML.
|
|
//
|
|
// Parameters:
|
|
// xmlString - The SVG as XML text.
|
|
//
|
|
// Returns:
|
|
// This function returns false if the set was unsuccessful, true otherwise.
|
|
this.setSvgString = function(xmlString) {
|
|
try {
|
|
// convert string into XML document
|
|
var newDoc = Utils.text2xml(xmlString);
|
|
// run it through our sanitizer to remove anything we do not support
|
|
sanitizeSvg(newDoc.documentElement);
|
|
|
|
var batchCmd = new BatchCommand("Change Source");
|
|
|
|
// remove old svg document
|
|
var oldzoom = svgroot.removeChild(svgcontent);
|
|
batchCmd.addSubCommand(new RemoveElementCommand(oldzoom, svgroot));
|
|
|
|
// set new svg document
|
|
svgcontent = svgroot.appendChild(svgdoc.importNode(newDoc.documentElement, true));
|
|
// retrieve or set the nonce
|
|
n = svgcontent.getAttributeNS(se_ns, 'nonce');
|
|
if (n) {
|
|
randomize_ids = true;
|
|
nonce = n;
|
|
if (extensions["Arrows"]) call("setarrownonce", n) ;
|
|
} else if (randomize_ids) {
|
|
svgcontent.setAttributeNS(xmlnsns, 'xmlns:se', se_ns);
|
|
svgcontent.setAttributeNS(se_ns, 'se:nonce', nonce);
|
|
if (extensions["Arrows"]) call("setarrownonce", nonce) ;
|
|
}
|
|
// change image href vals if possible
|
|
$(svgcontent).find('image').each(function() {
|
|
var image = this;
|
|
preventClickDefault(image);
|
|
var val = this.getAttributeNS(xlinkns, "href");
|
|
if(val.indexOf('data:') === 0) {
|
|
// Check if an SVG-edit data URI
|
|
var m = val.match(/svgedit_url=(.*?);/);
|
|
if(m) {
|
|
var url = decodeURIComponent(m[1]);
|
|
$(new Image()).load(function() {
|
|
image.setAttributeNS(xlinkns,'xlink:href',url);
|
|
}).attr('src',url);
|
|
}
|
|
}
|
|
// Add to encodableImages if it loads
|
|
canvas.embedImage(val);
|
|
});
|
|
|
|
// Fix XML for Opera/Win/Non-EN
|
|
if(!support.goodDecimals) {
|
|
canvas.fixOperaXML(svgcontent, newDoc.documentElement);
|
|
}
|
|
|
|
// recalculate dimensions on the top-level children so that unnecessary transforms
|
|
// are removed
|
|
walkTreePost(svgcontent, function(n){try{recalculateDimensions(n)}catch(e){console.log(e)}});
|
|
|
|
var content = $(svgcontent);
|
|
|
|
var attrs = {
|
|
id: 'svgcontent',
|
|
overflow: 'visible'
|
|
};
|
|
|
|
// determine proper size
|
|
if (content.attr("viewBox")) {
|
|
var vb = content.attr("viewBox").split(' ');
|
|
attrs.width = vb[2];
|
|
attrs.height = vb[3];
|
|
}
|
|
// handle content that doesn't have a viewBox
|
|
else {
|
|
$.each(['width', 'height'], function(i, dim) {
|
|
// Set to 100 if not given
|
|
var val = content.attr(dim) || 100;
|
|
|
|
if((val+'').substr(-1) === "%") {
|
|
// Use user units if percentage given
|
|
attrs[dim] = parseInt(val);
|
|
} else {
|
|
attrs[dim] = convertToNum(dim, val);
|
|
}
|
|
});
|
|
}
|
|
|
|
content.attr(attrs);
|
|
batchCmd.addSubCommand(new InsertElementCommand(svgcontent));
|
|
// update root to the correct size
|
|
var changes = content.attr(["width", "height"]);
|
|
batchCmd.addSubCommand(new ChangeElementCommand(svgroot, changes));
|
|
|
|
// reset zoom
|
|
current_zoom = 1;
|
|
|
|
// identify layers
|
|
identifyLayers();
|
|
|
|
// reset transform lists
|
|
svgTransformLists = {};
|
|
canvas.clearSelection();
|
|
pathActions.clearData();
|
|
svgroot.appendChild(selectorManager.selectorParentGroup);
|
|
|
|
addCommandToHistory(batchCmd);
|
|
call("changed", [svgcontent]);
|
|
} catch(e) {
|
|
console.log(e);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
// Function: importSvgString
|
|
// This function imports the input SVG XML into the current layer in the drawing
|
|
//
|
|
// Parameters:
|
|
// xmlString - The SVG as XML text.
|
|
//
|
|
// Returns:
|
|
// This function returns false if the import was unsuccessful, true otherwise.
|
|
|
|
// TODO: properly handle if namespace is introduced by imported content (must add to svgcontent
|
|
// and update all prefixes in the imported node)
|
|
// TODO: properly handle recalculating dimensions, recalculateDimensions() doesn't handle
|
|
// arbitrary transform lists, but makes some assumptions about how the transform list
|
|
// was obtained
|
|
// TODO: import should happen in top-left of current zoomed viewport
|
|
// TODO: create a new layer for the imported SVG
|
|
this.importSvgString = function(xmlString) {
|
|
try {
|
|
// convert string into XML document
|
|
var newDoc = Utils.text2xml(xmlString);
|
|
// run it through our sanitizer to remove anything we do not support
|
|
sanitizeSvg(newDoc.documentElement);
|
|
|
|
var batchCmd = new BatchCommand("Change Source");
|
|
|
|
// import new svg document into our document
|
|
var importedNode = svgdoc.importNode(newDoc.documentElement, true);
|
|
|
|
if (current_layer) {
|
|
// TODO: properly handle if width/height are not specified or if in percentages
|
|
// TODO: properly handle if width/height are in units (px, etc)
|
|
var innerw = importedNode.getAttribute("width"),
|
|
innerh = importedNode.getAttribute("height"),
|
|
innervb = importedNode.getAttribute("viewBox"),
|
|
// if no explicit viewbox, create one out of the width and height
|
|
vb = innervb ? innervb.split(" ") : [0,0,innerw,innerh];
|
|
for (var j = 0; j < 4; ++j)
|
|
vb[j] = Number(vb[j]);
|
|
|
|
// TODO: properly handle preserveAspectRatio
|
|
var canvasw = Number(svgcontent.getAttribute("width")),
|
|
canvash = Number(svgcontent.getAttribute("height"));
|
|
// imported content should be 1/3 of the canvas on its largest dimension
|
|
if (innerh > innerw) {
|
|
var ts = "scale(" + (canvash/3)/vb[3] + ")";
|
|
}
|
|
else {
|
|
var ts = "scale(" + (canvash/3)/vb[2] + ")";
|
|
}
|
|
if (vb[0] != 0 || vb[1] != 0)
|
|
ts = "translate(" + (-vb[0]) + "," + (-vb[1]) + ") " + ts;
|
|
|
|
// add all children of the imported <svg> to the <g> we create
|
|
var g = svgdoc.createElementNS(svgns, "g");
|
|
while (importedNode.hasChildNodes())
|
|
g.appendChild(importedNode.firstChild);
|
|
if (ts)
|
|
g.setAttribute("transform", ts);
|
|
|
|
// now ensure each element has a unique ID
|
|
var ids = {};
|
|
walkTree(g, function(n) {
|
|
// if it's an element node
|
|
if (n.nodeType == 1) {
|
|
// and the element has an ID
|
|
if (n.id) {
|
|
// and we haven't tracked this ID yet
|
|
if (!(n.id in ids)) {
|
|
// add this id to our map
|
|
ids[n.id] = {elem:null, attrs:[], hrefs:[]};
|
|
}
|
|
ids[n.id]["elem"] = n;
|
|
}
|
|
|
|
// now search for all attributes on this element that might refer
|
|
// to other elements
|
|
$.each(["clip-path", "fill", "filter", "marker-end", "marker-mid", "marker-start", "mask", "stroke"],function(i,attr) {
|
|
var attrnode = n.getAttributeNode(attr);
|
|
if (attrnode) {
|
|
// the incoming file has been sanitized, so we should be able to safely just strip off the leading #
|
|
var url = getUrlFromAttr(attrnode.value),
|
|
refid = url ? url.substr(1) : null;
|
|
if (refid) {
|
|
if (!(refid in ids)) {
|
|
// add this id to our map
|
|
ids[refid] = {elem:null, attrs:[], hrefs:[]};
|
|
}
|
|
ids[refid]["attrs"].push(attrnode);
|
|
}
|
|
}
|
|
});
|
|
|
|
// check xlink:href now
|
|
var href = n.getAttributeNS(xlinkns,"href");
|
|
// TODO: what if an <image> or <a> element refers to an element internally?
|
|
if(href &&
|
|
$.inArray(n.nodeName, ["filter", "linearGradient", "pattern",
|
|
"radialGradient", "textPath", "use"]) != -1)
|
|
{
|
|
var refid = href.substr(1);
|
|
if (!(refid in ids)) {
|
|
// add this id to our map
|
|
ids[refid] = {elem:null, attrs:[], hrefs:[]};
|
|
}
|
|
ids[refid]["hrefs"].push(n);
|
|
}
|
|
}
|
|
});
|
|
|
|
// in ids, we now have a map of ids, elements and attributes, let's re-identify
|
|
for (var oldid in ids) {
|
|
var elem = ids[oldid]["elem"];
|
|
if (elem) {
|
|
var newid = getNextId();
|
|
// manually increment obj_num because our cloned elements are not in the DOM yet
|
|
obj_num++;
|
|
|
|
// assign element its new id
|
|
elem.id = newid;
|
|
|
|
// remap all url() attributes
|
|
var attrs = ids[oldid]["attrs"];
|
|
var j = attrs.length;
|
|
while (j--) {
|
|
var attr = attrs[j];
|
|
attr.ownerElement.setAttribute(attr.name, "url(#" + newid + ")");
|
|
}
|
|
|
|
// remap all href attributes
|
|
var hreffers = ids[oldid]["hrefs"];
|
|
var k = hreffers.length;
|
|
while (k--) {
|
|
var hreffer = hreffers[k];
|
|
hreffer.setAttributeNS(xlinkns, "xlink:href", "#"+newid);
|
|
}
|
|
}
|
|
}
|
|
|
|
// now give the g itself a new id
|
|
g.id = getNextId();
|
|
// manually increment obj_num because our cloned elements are not in the DOM yet
|
|
obj_num++;
|
|
|
|
current_layer.appendChild(g);
|
|
}
|
|
|
|
// change image href vals if possible
|
|
// $(svgcontent).find('image').each(function() {
|
|
// var image = this;
|
|
// preventClickDefault(image);
|
|
// var val = this.getAttributeNS(xlinkns, "href");
|
|
// if(val.indexOf('data:') === 0) {
|
|
// // Check if an SVG-edit data URI
|
|
// var m = val.match(/svgedit_url=(.*?);/);
|
|
// if(m) {
|
|
// var url = decodeURIComponent(m[1]);
|
|
// $(new Image()).load(function() {
|
|
// image.setAttributeNS(xlinkns,'xlink:href',url);
|
|
// }).attr('src',url);
|
|
// }
|
|
// }
|
|
// // Add to encodableImages if it loads
|
|
// canvas.embedImage(val);
|
|
// });
|
|
|
|
// Fix XML for Opera/Win/Non-EN
|
|
if(!support.goodDecimals) {
|
|
canvas.fixOperaXML(svgcontent, importedNode);
|
|
}
|
|
|
|
// recalculate dimensions on the top-level children so that unnecessary transforms
|
|
// are removed
|
|
walkTreePost(importedNode, function(n){try{recalculateDimensions(n)}catch(e){console.log(e)}});
|
|
|
|
|
|
batchCmd.addSubCommand(new InsertElementCommand(svgcontent));
|
|
|
|
// reset zoom - TODO: why?
|
|
// current_zoom = 1;
|
|
|
|
// identify layers
|
|
// identifyLayers();
|
|
|
|
// reset transform lists
|
|
svgTransformLists = {};
|
|
canvas.clearSelection();
|
|
|
|
addCommandToHistory(batchCmd);
|
|
call("changed", [svgcontent]);
|
|
} catch(e) {
|
|
console.log(e);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
};
|
|
|
|
// Layer API Functions
|
|
|
|
// Group: Layers
|
|
|
|
var identifyLayers = function() {
|
|
all_layers = [];
|
|
var numchildren = svgcontent.childNodes.length;
|
|
// loop through all children of svgcontent
|
|
var orphans = [], layernames = [];
|
|
for (var i = 0; i < numchildren; ++i) {
|
|
var child = svgcontent.childNodes.item(i);
|
|
// for each g, find its layer name
|
|
if (child && child.nodeType == 1) {
|
|
if (child.tagName == "g") {
|
|
var name = $("title",child).text();
|
|
// store layer and name in global variable
|
|
if (name) {
|
|
layernames.push(name);
|
|
all_layers.push( [name,child] );
|
|
current_layer = child;
|
|
walkTree(child, function(e){e.setAttribute("style", "pointer-events:inherit");});
|
|
current_layer.setAttribute("style", "pointer-events:none");
|
|
}
|
|
// if group did not have a name, it is an orphan
|
|
else {
|
|
orphans.push(child);
|
|
}
|
|
}
|
|
// if child has a bbox (i.e. not a <title> or <defs> element), then it is an orphan
|
|
else if(canvas.getBBox(child) && child.nodeName != 'defs') { // Opera returns a BBox for defs
|
|
var bb = canvas.getBBox(child);
|
|
orphans.push(child);
|
|
}
|
|
}
|
|
}
|
|
// create a new layer and add all the orphans to it
|
|
if (orphans.length > 0) {
|
|
var i = 1;
|
|
while ($.inArray(("Layer " + i), layernames) != -1) { i++; }
|
|
var newname = "Layer " + i;
|
|
current_layer = svgdoc.createElementNS(svgns, "g");
|
|
var layer_title = svgdoc.createElementNS(svgns, "title");
|
|
layer_title.textContent = newname;
|
|
current_layer.appendChild(layer_title);
|
|
for (var j = 0; j < orphans.length; ++j) {
|
|
current_layer.appendChild(orphans[j]);
|
|
}
|
|
current_layer = svgcontent.appendChild(current_layer);
|
|
all_layers.push( [newname, current_layer] );
|
|
}
|
|
walkTree(current_layer, function(e){e.setAttribute("style","pointer-events:inherit");});
|
|
current_layer.setAttribute("style","pointer-events:all");
|
|
};
|
|
|
|
// Function: createLayer
|
|
// Creates a new top-level layer in the drawing with the given name, sets the current layer
|
|
// to it, and then clears the selection This function then calls the 'changed' handler.
|
|
// This is an undoable action.
|
|
//
|
|
// Parameters:
|
|
// name - The given name
|
|
this.createLayer = function(name) {
|
|
var batchCmd = new BatchCommand("Create Layer");
|
|
var new_layer = svgdoc.createElementNS(svgns, "g");
|
|
var layer_title = svgdoc.createElementNS(svgns, "title");
|
|
layer_title.textContent = name;
|
|
new_layer.appendChild(layer_title);
|
|
new_layer = svgcontent.appendChild(new_layer);
|
|
batchCmd.addSubCommand(new InsertElementCommand(new_layer));
|
|
addCommandToHistory(batchCmd);
|
|
canvas.clearSelection();
|
|
identifyLayers();
|
|
canvas.setCurrentLayer(name);
|
|
call("changed", [new_layer]);
|
|
};
|
|
|
|
// Function: deleteCurrentLayer
|
|
// Deletes the current layer from the drawing and then clears the selection. This function
|
|
// then calls the 'changed' handler. This is an undoable action.
|
|
this.deleteCurrentLayer = function() {
|
|
if (current_layer && all_layers.length > 1) {
|
|
var batchCmd = new BatchCommand("Delete Layer");
|
|
// actually delete from the DOM and store in our Undo History
|
|
var parent = current_layer.parentNode;
|
|
batchCmd.addSubCommand(new RemoveElementCommand(current_layer, parent));
|
|
parent.removeChild(current_layer);
|
|
addCommandToHistory(batchCmd);
|
|
canvas.clearSelection();
|
|
identifyLayers();
|
|
canvas.setCurrentLayer(all_layers[all_layers.length-1][0]);
|
|
call("changed", [svgcontent]);
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
// Function: getNumLayers
|
|
// Returns the number of layers in the current drawing.
|
|
//
|
|
// Returns:
|
|
// The number of layers in the current drawing.
|
|
this.getNumLayers = function() {
|
|
return all_layers.length;
|
|
};
|
|
|
|
// Function: getLayer
|
|
// Returns the name of the ith layer. If the index is out of range, an empty string is returned.
|
|
//
|
|
// Parameters:
|
|
// i - the zero-based index of the layer you are querying.
|
|
//
|
|
// Returns:
|
|
// The name of the ith layer
|
|
this.getLayer = function(i) {
|
|
if (i >= 0 && i < canvas.getNumLayers()) {
|
|
return all_layers[i][0];
|
|
}
|
|
return "";
|
|
};
|
|
|
|
// Function: getCurrentLayer
|
|
// Returns the name of the currently selected layer. If an error occurs, an empty string
|
|
// is returned.
|
|
//
|
|
// Returns:
|
|
// The name of the currently active layer.
|
|
this.getCurrentLayer = function() {
|
|
for (var i = 0; i < all_layers.length; ++i) {
|
|
if (all_layers[i][1] == current_layer) {
|
|
return all_layers[i][0];
|
|
}
|
|
}
|
|
return "";
|
|
};
|
|
|
|
// Function: setCurrentLayer
|
|
// Sets the current layer. If the name is not a valid layer name, then this function returns
|
|
// false. Otherwise it returns true. This is not an undo-able action.
|
|
//
|
|
// Parameters:
|
|
// name - the name of the layer you want to switch to.
|
|
//
|
|
// Returns:
|
|
// true if the current layer was switched, otherwise false
|
|
this.setCurrentLayer = function(name) {
|
|
name = toXml(name);
|
|
for (var i = 0; i < all_layers.length; ++i) {
|
|
if (name == all_layers[i][0]) {
|
|
if (current_layer != all_layers[i][1]) {
|
|
canvas.clearSelection();
|
|
current_layer.setAttribute("style", "pointer-events:none");
|
|
current_layer = all_layers[i][1];
|
|
current_layer.setAttribute("style", "pointer-events:all");
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
// Function: renameCurrentLayer
|
|
// Renames the current layer. If the layer name is not valid (i.e. unique), then this function
|
|
// does nothing and returns false, otherwise it returns true. This is an undo-able action.
|
|
//
|
|
// Parameters:
|
|
// newname - the new name you want to give the current layer. This name must be unique
|
|
// among all layer names.
|
|
//
|
|
// Returns:
|
|
// true if the rename succeeded, false otherwise.
|
|
this.renameCurrentLayer = function(newname) {
|
|
if (current_layer) {
|
|
var oldLayer = current_layer;
|
|
// setCurrentLayer will return false if the name doesn't already exists
|
|
if (!canvas.setCurrentLayer(newname)) {
|
|
var batchCmd = new BatchCommand("Rename Layer");
|
|
// find the index of the layer
|
|
for (var i = 0; i < all_layers.length; ++i) {
|
|
if (all_layers[i][1] == oldLayer) break;
|
|
}
|
|
var oldname = all_layers[i][0];
|
|
all_layers[i][0] = toXml(newname);
|
|
|
|
// now change the underlying title element contents
|
|
var len = oldLayer.childNodes.length;
|
|
for (var i = 0; i < len; ++i) {
|
|
var child = oldLayer.childNodes.item(i);
|
|
// found the <title> element, now append all the
|
|
if (child && child.tagName == "title") {
|
|
// wipe out old name
|
|
while (child.firstChild) { child.removeChild(child.firstChild); }
|
|
child.textContent = newname;
|
|
|
|
batchCmd.addSubCommand(new ChangeElementCommand(child, {"#text":oldname}));
|
|
addCommandToHistory(batchCmd);
|
|
call("changed", [oldLayer]);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
current_layer = oldLayer;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
// Function: setCurrentLayerPosition
|
|
// Changes the position of the current layer to the new value. If the new index is not valid,
|
|
// this function does nothing and returns false, otherwise it returns true. This is an
|
|
// undo-able action.
|
|
//
|
|
// Parameters:
|
|
// newpos - The zero-based index of the new position of the layer. This should be between
|
|
// 0 and (number of layers - 1)
|
|
//
|
|
// Returns:
|
|
// true if the current layer position was changed, false otherwise.
|
|
this.setCurrentLayerPosition = function(newpos) {
|
|
if (current_layer && newpos >= 0 && newpos < all_layers.length) {
|
|
for (var oldpos = 0; oldpos < all_layers.length; ++oldpos) {
|
|
if (all_layers[oldpos][1] == current_layer) break;
|
|
}
|
|
// some unknown error condition (current_layer not in all_layers)
|
|
if (oldpos == all_layers.length) { return false; }
|
|
|
|
if (oldpos != newpos) {
|
|
// if our new position is below us, we need to insert before the node after newpos
|
|
var refLayer = null;
|
|
var oldNextSibling = current_layer.nextSibling;
|
|
if (newpos > oldpos ) {
|
|
if (newpos < all_layers.length-1) {
|
|
refLayer = all_layers[newpos+1][1];
|
|
}
|
|
}
|
|
// if our new position is above us, we need to insert before the node at newpos
|
|
else {
|
|
refLayer = all_layers[newpos][1];
|
|
}
|
|
svgcontent.insertBefore(current_layer, refLayer);
|
|
addCommandToHistory(new MoveElementCommand(current_layer, oldNextSibling, svgcontent));
|
|
|
|
identifyLayers();
|
|
canvas.setCurrentLayer(all_layers[newpos][0]);
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
// Function: getLayerVisibility
|
|
// Returns whether the layer is visible. If the layer name is not valid, then this function
|
|
// returns false.
|
|
//
|
|
// Parameters:
|
|
// layername - the name of the layer which you want to query.
|
|
//
|
|
// Returns:
|
|
// The visibility state of the layer, or false if the layer name was invalid.
|
|
this.getLayerVisibility = function(layername) {
|
|
// find the layer
|
|
var layer = null;
|
|
for (var i = 0; i < all_layers.length; ++i) {
|
|
if (all_layers[i][0] == layername) {
|
|
layer = all_layers[i][1];
|
|
break;
|
|
}
|
|
}
|
|
if (!layer) return false;
|
|
return (layer.getAttribute("display") != "none");
|
|
};
|
|
|
|
// Function: setLayerVisibility
|
|
// Sets the visibility of the layer. If the layer name is not valid, this function return
|
|
// false, otherwise it returns true. This is an undo-able action.
|
|
//
|
|
// Parameters:
|
|
// layername - the name of the layer to change the visibility
|
|
// bVisible - true/false, whether the layer should be visible
|
|
//
|
|
// Returns:
|
|
// true if the layer's visibility was set, false otherwise
|
|
this.setLayerVisibility = function(layername, bVisible) {
|
|
// find the layer
|
|
var layer = null;
|
|
for (var i = 0; i < all_layers.length; ++i) {
|
|
if (all_layers[i][0] == layername) {
|
|
layer = all_layers[i][1];
|
|
break;
|
|
}
|
|
}
|
|
if (!layer) return false;
|
|
|
|
var oldDisplay = layer.getAttribute("display");
|
|
if (!oldDisplay) oldDisplay = "inline";
|
|
layer.setAttribute("display", bVisible ? "inline" : "none");
|
|
addCommandToHistory(new ChangeElementCommand(layer, {"display":oldDisplay}, "Layer Visibility"));
|
|
|
|
if (layer == current_layer) {
|
|
canvas.clearSelection();
|
|
pathActions.clear();
|
|
}
|
|
// call("changed", [selected]);
|
|
|
|
return true;
|
|
};
|
|
|
|
// Function: moveSelectedToLayer
|
|
// Moves the selected elements to layername. If the name is not a valid layer name, then false
|
|
// is returned. Otherwise it returns true. This is an undo-able action.
|
|
//
|
|
// Parameters:
|
|
// layername - the name of the layer you want to which you want to move the selected elements
|
|
//
|
|
// Returns:
|
|
// true if the selected elements were moved to the layer, false otherwise.
|
|
this.moveSelectedToLayer = function(layername) {
|
|
// find the layer
|
|
var layer = null;
|
|
for (var i = 0; i < all_layers.length; ++i) {
|
|
if (all_layers[i][0] == layername) {
|
|
layer = all_layers[i][1];
|
|
break;
|
|
}
|
|
}
|
|
if (!layer) return false;
|
|
|
|
var batchCmd = new BatchCommand("Move Elements to Layer");
|
|
|
|
// loop for each selected element and move it
|
|
var selElems = selectedElements;
|
|
var i = selElems.length;
|
|
while (i--) {
|
|
var elem = selElems[i];
|
|
if (!elem) continue;
|
|
var oldNextSibling = elem.nextSibling;
|
|
// TODO: this is pretty brittle!
|
|
var oldLayer = elem.parentNode;
|
|
layer.appendChild(elem);
|
|
batchCmd.addSubCommand(new MoveElementCommand(elem, oldNextSibling, oldLayer));
|
|
}
|
|
|
|
addCommandToHistory(batchCmd);
|
|
|
|
return true;
|
|
};
|
|
|
|
// Function: getLayerOpacity
|
|
// Returns the opacity of the given layer. If the input name is not a layer, null is returned.
|
|
//
|
|
// Parameters:
|
|
// layername - name of the layer on which to get the opacity
|
|
//
|
|
// Returns:
|
|
// The opacity value of the given layer. This will be a value between 0.0 and 1.0, or null
|
|
// if layername is not a valid layer
|
|
this.getLayerOpacity = function(layername) {
|
|
for (var i = 0; i < all_layers.length; ++i) {
|
|
if (all_layers[i][0] == layername) {
|
|
var g = all_layers[i][1];
|
|
var opacity = g.getAttribute("opacity");
|
|
if (!opacity) {
|
|
opacity = "1.0";
|
|
}
|
|
return parseFloat(opacity);
|
|
}
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
// Function: setLayerOpacity
|
|
// Sets the opacity of the given layer. If the input name is not a layer, nothing happens.
|
|
// This is not an undo-able action. NOTE: this function exists solely to apply
|
|
// a highlighting/de-emphasis effect to a layer, when it is possible for a user to affect
|
|
// the opacity of a layer, we will need to allow this function to produce an undo-able action.
|
|
// If opacity is not a value between 0.0 and 1.0, then nothing happens.
|
|
//
|
|
// Parameters:
|
|
// layername - name of the layer on which to set the opacity
|
|
// opacity - a float value in the range 0.0-1.0
|
|
this.setLayerOpacity = function(layername, opacity) {
|
|
if (opacity < 0.0 || opacity > 1.0) return;
|
|
for (var i = 0; i < all_layers.length; ++i) {
|
|
if (all_layers[i][0] == layername) {
|
|
var g = all_layers[i][1];
|
|
g.setAttribute("opacity", opacity);
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
// Function: selectAllInCurrentLayer
|
|
// Clears the selection, then adds all elements in the current layer to the selection.
|
|
// This function then fires the selected event.
|
|
this.selectAllInCurrentLayer = function() {
|
|
if (current_layer) {
|
|
canvas.clearSelection();
|
|
canvas.addToSelection($(current_layer).children());
|
|
current_mode = "select";
|
|
call("selected", selectedElements);
|
|
}
|
|
};
|
|
|
|
// Function: clear
|
|
// Clears the current document. This is not an undoable action.
|
|
this.clear = function() {
|
|
pathActions.clear();
|
|
|
|
// clear the svgcontent node
|
|
var nodes = svgcontent.childNodes;
|
|
var len = svgcontent.childNodes.length;
|
|
var i = 0;
|
|
this.clearSelection();
|
|
for(var rep = 0; rep < len; rep++){
|
|
if (nodes[i].nodeType == 1) { // element node
|
|
svgcontent.removeChild(nodes[i]);
|
|
} else {
|
|
i++;
|
|
}
|
|
}
|
|
// create empty first layer
|
|
all_layers = [];
|
|
canvas.createLayer("Layer 1");
|
|
|
|
// clear the undo stack
|
|
resetUndoStack();
|
|
// reset the selector manager
|
|
selectorManager.initGroup();
|
|
// reset the rubber band box
|
|
rubberBox = selectorManager.getRubberBandBox();
|
|
call("cleared");
|
|
};
|
|
|
|
this.linkControlPoints = function(linkPoints) {
|
|
pathActions.linkControlPoints(linkPoints);
|
|
}
|
|
|
|
this.getResolution = function() {
|
|
// var vb = svgcontent.getAttribute("viewBox").split(' ');
|
|
// return {'w':vb[2], 'h':vb[3], 'zoom': current_zoom};
|
|
|
|
return {
|
|
'w':svgcontent.getAttribute("width"),
|
|
'h':svgcontent.getAttribute("height"),
|
|
'zoom': current_zoom
|
|
};
|
|
};
|
|
|
|
this.getImageTitle = function() {
|
|
var childs = svgcontent.childNodes;
|
|
for (var i=0; i<childs.length; i++) {
|
|
if(childs[i].nodeName == 'title') {
|
|
return childs[i].textContent;
|
|
}
|
|
}
|
|
return '';
|
|
}
|
|
|
|
this.setImageTitle = function(newtitle) {
|
|
var childs = svgcontent.childNodes, doc_title = false, old_title = '';
|
|
|
|
var batchCmd = new BatchCommand("Change Image Title");
|
|
|
|
for (var i=0; i<childs.length; i++) {
|
|
if(childs[i].nodeName == 'title') {
|
|
doc_title = childs[i];
|
|
old_title = doc_title.textContent;
|
|
break;
|
|
}
|
|
}
|
|
if(!doc_title) {
|
|
doc_title = svgdoc.createElementNS(svgns, "title");
|
|
svgcontent.insertBefore(doc_title, svgcontent.firstChild);
|
|
}
|
|
|
|
if(newtitle.length) {
|
|
doc_title.textContent = newtitle;
|
|
} else {
|
|
// No title given, so element is not necessary
|
|
doc_title.parentNode.removeChild(doc_title);
|
|
}
|
|
batchCmd.addSubCommand(new ChangeElementCommand(doc_title, {'#text': old_title}));
|
|
addCommandToHistory(batchCmd);
|
|
}
|
|
|
|
this.getEditorNS = function(add) {
|
|
if(add) {
|
|
svgcontent.setAttribute('xmlns:se', se_ns);
|
|
}
|
|
return se_ns;
|
|
}
|
|
|
|
this.setResolution = function(x, y) {
|
|
var res = canvas.getResolution();
|
|
var w = res.w, h = res.h;
|
|
var batchCmd;
|
|
|
|
if(x == 'fit') {
|
|
// Get bounding box
|
|
var bbox = canvas.getStrokedBBox();
|
|
|
|
if(bbox) {
|
|
batchCmd = new BatchCommand("Fit Canvas to Content");
|
|
var visEls = canvas.getVisibleElements();
|
|
canvas.addToSelection(visEls);
|
|
var dx = [], dy = [];
|
|
$.each(visEls, function(i, item) {
|
|
dx.push(bbox.x*-1);
|
|
dy.push(bbox.y*-1);
|
|
});
|
|
|
|
var cmd = canvas.moveSelectedElements(dx, dy, true);
|
|
batchCmd.addSubCommand(cmd);
|
|
canvas.clearSelection();
|
|
|
|
x = Math.round(bbox.width);
|
|
y = Math.round(bbox.height);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
if (x != w || y != h) {
|
|
var handle = svgroot.suspendRedraw(1000);
|
|
if(!batchCmd) {
|
|
batchCmd = new BatchCommand("Change Image Dimensions");
|
|
}
|
|
x = convertToNum('width', x);
|
|
y = convertToNum('height', y);
|
|
|
|
svgcontent.setAttribute('width', x);
|
|
svgcontent.setAttribute('height', y);
|
|
batchCmd.addSubCommand(new ChangeElementCommand(svgcontent, {"width":w, "height":h}));
|
|
|
|
svgcontent.setAttribute("viewBox", [0, 0, x/current_zoom, y/current_zoom].join(' '));
|
|
batchCmd.addSubCommand(new ChangeElementCommand(svgcontent, {"viewBox": ["0 0", w, h].join(' ')}));
|
|
|
|
addCommandToHistory(batchCmd);
|
|
svgroot.unsuspendRedraw(handle);
|
|
call("changed", [svgcontent]);
|
|
}
|
|
return true;
|
|
};
|
|
|
|
this.getOffset = function() {
|
|
return $(svgcontent).attr(['x', 'y']);
|
|
}
|
|
|
|
this.setBBoxZoom = function(val, editor_w, editor_h) {
|
|
var spacer = .85;
|
|
var bb;
|
|
var calcZoom = function(bb) {
|
|
if(!bb) return false;
|
|
var w_zoom = Math.round((editor_w / bb.width)*100 * spacer)/100;
|
|
var h_zoom = Math.round((editor_h / bb.height)*100 * spacer)/100;
|
|
var zoomlevel = Math.min(w_zoom,h_zoom);
|
|
canvas.setZoom(zoomlevel);
|
|
return {'zoom': zoomlevel, 'bbox': bb};
|
|
}
|
|
|
|
if(typeof val == 'object') {
|
|
bb = val;
|
|
if(bb.width == 0 || bb.height == 0) {
|
|
var newzoom = bb.zoom?bb.zoom:current_zoom * bb.factor;
|
|
canvas.setZoom(newzoom);
|
|
return {'zoom': current_zoom, 'bbox': bb};
|
|
}
|
|
return calcZoom(bb);
|
|
}
|
|
|
|
switch (val) {
|
|
case 'selection':
|
|
if(!selectedElements[0]) return;
|
|
var sel_elems = $.map(selectedElements, function(n){ if(n) return n; });
|
|
bb = canvas.getStrokedBBox(sel_elems);
|
|
break;
|
|
case 'canvas':
|
|
var res = canvas.getResolution();
|
|
spacer = .95;
|
|
bb = {width:res.w, height:res.h ,x:0, y:0};
|
|
break;
|
|
case 'content':
|
|
bb = canvas.getStrokedBBox();
|
|
break;
|
|
case 'layer':
|
|
bb = canvas.getStrokedBBox(canvas.getVisibleElements(current_layer));
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
return calcZoom(bb);
|
|
}
|
|
|
|
this.setZoom = function(zoomlevel) {
|
|
var res = canvas.getResolution();
|
|
svgcontent.setAttribute("viewBox", "0 0 " + res.w/zoomlevel + " " + res.h/zoomlevel);
|
|
current_zoom = zoomlevel;
|
|
$.each(selectedElements, function(i, elem) {
|
|
if(!elem) return;
|
|
selectorManager.requestSelector(elem).resize();
|
|
});
|
|
pathActions.zoomChange();
|
|
runExtensions("zoomChanged", zoomlevel);
|
|
}
|
|
|
|
this.getMode = function() {
|
|
return current_mode;
|
|
};
|
|
|
|
this.setMode = function(name) {
|
|
pathActions.modeChange();
|
|
|
|
cur_properties = (selectedElements[0] && selectedElements[0].nodeName == 'text') ? cur_text : cur_shape;
|
|
current_mode = name;
|
|
};
|
|
|
|
this.getStrokeColor = function() {
|
|
return cur_properties.stroke;
|
|
};
|
|
|
|
// TODO: rewrite setFillColor(), setStrokeColor(), setStrokeWidth(), setStrokeStyle()
|
|
// to use a common function?
|
|
this.setStrokeColor = function(val,preventUndo) {
|
|
cur_shape.stroke = val;
|
|
cur_properties.stroke_paint = {type:"solidColor"};
|
|
var elems = [];
|
|
var i = selectedElements.length;
|
|
while (i--) {
|
|
var elem = selectedElements[i];
|
|
if (elem) {
|
|
if (elem.tagName == "g")
|
|
walkTree(elem, function(e){if(e.nodeName!="g") elems.push(e);});
|
|
else
|
|
elems.push(elem);
|
|
}
|
|
}
|
|
|
|
if (elems.length > 0) {
|
|
if (!preventUndo) {
|
|
this.changeSelectedAttribute("stroke", val, elems);
|
|
call("changed", elems);
|
|
} else
|
|
this.changeSelectedAttributeNoUndo("stroke", val, elems);
|
|
}
|
|
};
|
|
|
|
this.getFillColor = function() {
|
|
return cur_properties.fill;
|
|
};
|
|
|
|
this.setFillColor = function(val,preventUndo) {
|
|
cur_properties.fill = val;
|
|
cur_properties.fill_paint = {type:"solidColor"};
|
|
// take out any path/line elements when setting fill
|
|
// add all descendants of groups (but remove groups)
|
|
var elems = [];
|
|
var i = selectedElements.length;
|
|
while (i--) {
|
|
var elem = selectedElements[i];
|
|
if (elem) {
|
|
if (elem.tagName == "g")
|
|
walkTree(elem, function(e){if(e.nodeName!="g") elems.push(e);});
|
|
else if (elem.tagName != "polyline" && elem.tagName != "line")
|
|
elems.push(elem);
|
|
}
|
|
}
|
|
if (elems.length > 0) {
|
|
if (!preventUndo) {
|
|
this.changeSelectedAttribute("fill", val, elems);
|
|
call("changed", elems);
|
|
} else
|
|
this.changeSelectedAttributeNoUndo("fill", val, elems);
|
|
}
|
|
};
|
|
|
|
var findDefs = function() {
|
|
var defs = svgcontent.getElementsByTagNameNS(svgns, "defs");
|
|
if (defs.length > 0) {
|
|
defs = defs[0];
|
|
}
|
|
else {
|
|
// first child is a comment, so call nextSibling
|
|
defs = svgcontent.insertBefore( svgdoc.createElementNS(svgns, "defs" ), svgcontent.firstChild.nextSibling);
|
|
}
|
|
return defs;
|
|
};
|
|
|
|
var addGradient = function() {
|
|
$.each(['stroke','fill'],function(i,type) {
|
|
|
|
if(!cur_properties[type + '_paint'] || cur_properties[type + '_paint'].type == "solidColor") return;
|
|
var grad = canvas[type + 'Grad'];
|
|
// find out if there is a duplicate gradient already in the defs
|
|
var duplicate_grad = findDuplicateGradient(grad);
|
|
var defs = findDefs();
|
|
// no duplicate found, so import gradient into defs
|
|
if (!duplicate_grad) {
|
|
var orig_grad = grad;
|
|
grad = defs.appendChild( svgdoc.importNode(grad, true) );
|
|
canvas.fixOperaXML(grad, orig_grad);
|
|
// get next id and set it on the grad
|
|
grad.id = getNextId();
|
|
}
|
|
else { // use existing gradient
|
|
grad = duplicate_grad;
|
|
}
|
|
var functype = type=='fill'?'Fill':'Stroke';
|
|
canvas['set'+ functype +'Color']("url(#" + grad.id + ")");
|
|
});
|
|
}
|
|
|
|
var findDuplicateGradient = function(grad) {
|
|
var defs = findDefs();
|
|
var existing_grads = $(defs).find("linearGradient, radialGradient");
|
|
var i = existing_grads.length;
|
|
var rad_attrs = ['r','cx','cy','fx','fy'];
|
|
while (i--) {
|
|
var og = existing_grads[i];
|
|
if(grad.tagName == "linearGradient") {
|
|
if (grad.getAttribute('x1') != og.getAttribute('x1') ||
|
|
grad.getAttribute('y1') != og.getAttribute('y1') ||
|
|
grad.getAttribute('x2') != og.getAttribute('x2') ||
|
|
grad.getAttribute('y2') != og.getAttribute('y2'))
|
|
{
|
|
continue;
|
|
}
|
|
} else {
|
|
var grad_attrs = $(grad).attr(rad_attrs);
|
|
var og_attrs = $(og).attr(rad_attrs);
|
|
|
|
var diff = false;
|
|
$.each(rad_attrs, function(i, attr) {
|
|
if(grad_attrs[attr] != og_attrs[attr]) diff = true;
|
|
});
|
|
|
|
if(diff) continue;
|
|
}
|
|
|
|
// else could be a duplicate, iterate through stops
|
|
var stops = grad.getElementsByTagNameNS(svgns, "stop");
|
|
var ostops = og.getElementsByTagNameNS(svgns, "stop");
|
|
|
|
if (stops.length != ostops.length) {
|
|
continue;
|
|
}
|
|
|
|
var j = stops.length;
|
|
while(j--) {
|
|
var stop = stops[j];
|
|
var ostop = ostops[j];
|
|
|
|
if (stop.getAttribute('offset') != ostop.getAttribute('offset') ||
|
|
stop.getAttribute('stop-opacity') != ostop.getAttribute('stop-opacity') ||
|
|
stop.getAttribute('stop-color') != ostop.getAttribute('stop-color'))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (j == -1) {
|
|
return og;
|
|
}
|
|
} // for each gradient in defs
|
|
|
|
return null;
|
|
};
|
|
|
|
// Group: Fill and Stroke
|
|
|
|
this.setStrokePaint = function(p, addGrad) {
|
|
// make a copy
|
|
var p = new $.jGraduate.Paint(p);
|
|
this.setStrokeOpacity(p.alpha/100);
|
|
|
|
// now set the current paint object
|
|
cur_properties.stroke_paint = p;
|
|
if (p.type == "solidColor") {
|
|
this.setStrokeColor(p.solidColor != "none" ? "#"+p.solidColor : "none");
|
|
}
|
|
else if(p.type == "linearGradient") {
|
|
canvas.strokeGrad = p.linearGradient;
|
|
if(addGrad) addGradient();
|
|
}
|
|
else if(p.type == "radialGradient") {
|
|
canvas.strokeGrad = p.radialGradient;
|
|
if(addGrad) addGradient();
|
|
}
|
|
else {
|
|
// console.log("none!");
|
|
}
|
|
};
|
|
|
|
this.setFillPaint = function(p, addGrad) {
|
|
// make a copy
|
|
var p = new $.jGraduate.Paint(p);
|
|
this.setFillOpacity(p.alpha/100, true);
|
|
|
|
// now set the current paint object
|
|
cur_properties.fill_paint = p;
|
|
if (p.type == "solidColor") {
|
|
this.setFillColor(p.solidColor != "none" ? "#"+p.solidColor : "none");
|
|
}
|
|
else if(p.type == "linearGradient") {
|
|
canvas.fillGrad = p.linearGradient;
|
|
if(addGrad) addGradient();
|
|
}
|
|
else if(p.type == "radialGradient") {
|
|
canvas.fillGrad = p.radialGradient;
|
|
if(addGrad) addGradient();
|
|
}
|
|
else {
|
|
// console.log("none!");
|
|
}
|
|
};
|
|
|
|
this.getStrokeWidth = function() {
|
|
return cur_properties.stroke_width;
|
|
};
|
|
|
|
// When attempting to set a line's width to 0, change it to 1 instead
|
|
this.setStrokeWidth = function(val) {
|
|
if(val == 0 && $.inArray(current_mode, ['line', 'path']) != -1) {
|
|
canvas.setStrokeWidth(1);
|
|
return;
|
|
}
|
|
cur_properties.stroke_width = val;
|
|
|
|
var elems = [];
|
|
var i = selectedElements.length;
|
|
while (i--) {
|
|
var elem = selectedElements[i];
|
|
if (elem) {
|
|
if (elem.tagName == "g")
|
|
walkTree(elem, function(e){if(e.nodeName!="g") elems.push(e);});
|
|
else
|
|
elems.push(elem);
|
|
}
|
|
}
|
|
if (elems.length > 0) {
|
|
this.changeSelectedAttribute("stroke-width", val, elems);
|
|
}
|
|
};
|
|
|
|
this.getStrokeStyle = function() {
|
|
return cur_shape.stroke_style;
|
|
};
|
|
|
|
this.setStrokeStyle = function(val) {
|
|
cur_shape.stroke_style = val;
|
|
var elems = [];
|
|
var i = selectedElements.length;
|
|
while (i--) {
|
|
var elem = selectedElements[i];
|
|
if (elem) {
|
|
if (elem.tagName == "g")
|
|
walkTree(elem, function(e){if(e.nodeName!="g") elems.push(e);});
|
|
else
|
|
elems.push(elem);
|
|
}
|
|
}
|
|
if (elems.length > 0) {
|
|
this.changeSelectedAttribute("stroke-dasharray", val, elems);
|
|
}
|
|
};
|
|
|
|
this.getOpacity = function() {
|
|
return cur_shape.opacity;
|
|
};
|
|
|
|
this.setOpacity = function(val) {
|
|
cur_shape.opacity = val;
|
|
this.changeSelectedAttribute("opacity", val);
|
|
};
|
|
|
|
this.getFillOpacity = function() {
|
|
return cur_shape.fill_opacity;
|
|
};
|
|
|
|
this.setFillOpacity = function(val, preventUndo) {
|
|
cur_shape.fill_opacity = val;
|
|
if (!preventUndo)
|
|
this.changeSelectedAttribute("fill-opacity", val);
|
|
else
|
|
this.changeSelectedAttributeNoUndo("fill-opacity", val);
|
|
};
|
|
|
|
this.getStrokeOpacity = function() {
|
|
return cur_shape.stroke_opacity;
|
|
};
|
|
|
|
this.setStrokeOpacity = function(val, preventUndo) {
|
|
cur_shape.stroke_opacity = val;
|
|
if (!preventUndo)
|
|
this.changeSelectedAttribute("stroke-opacity", val);
|
|
else
|
|
this.changeSelectedAttributeNoUndo("stroke-opacity", val);
|
|
};
|
|
|
|
// returns an object that behaves like a SVGTransformList
|
|
this.getTransformList = function(elem) {
|
|
// Opera is included here because Opera/Win/Non-EN seems to change
|
|
// transformlist float vals to use a comma rather than a period.
|
|
if (isWebkit || !support.goodDecimals) {
|
|
var id = elem.id;
|
|
if(!id) {
|
|
// Get unique ID for temporary element
|
|
id = 'temp';
|
|
}
|
|
var t = svgTransformLists[id];
|
|
if (!t || id == 'temp') {
|
|
svgTransformLists[id] = new SVGEditTransformList(elem);
|
|
svgTransformLists[id]._init();
|
|
t = svgTransformLists[id];
|
|
}
|
|
return t;
|
|
}
|
|
else if (elem.transform) {
|
|
return elem.transform.baseVal;
|
|
}
|
|
return null;
|
|
};
|
|
|
|
this.getBBox = function(elem) {
|
|
var selected = elem || selectedElements[0];
|
|
if (elem.nodeType != 1) return null;
|
|
var ret = null;
|
|
if(elem.nodeName == 'text' && selected.textContent == '') {
|
|
selected.textContent = 'a'; // Some character needed for the selector to use.
|
|
ret = selected.getBBox();
|
|
selected.textContent = '';
|
|
} else if (elem.nodeName == 'g' && isOpera) {
|
|
// deal with an opera bug here
|
|
// the bbox on a 'g' is not correct if the elements inside have been moved
|
|
// so we create a new g, add all the children to it, add it to the DOM, get its bbox
|
|
// then put all the children back on the old g and remove the new g
|
|
// (this means we make no changes to the DOM, which saves us a lot of headache at
|
|
// the cost of performance)
|
|
ret = selected.getBBox();
|
|
var newg = document.createElementNS(svgns, "g");
|
|
while (selected.firstChild) { newg.appendChild(selected.firstChild); }
|
|
var i = selected.attributes.length;
|
|
while(i--) { newg.setAttributeNode(selected.attributes.item(i).cloneNode(true)); }
|
|
selected.parentNode.appendChild(newg);
|
|
ret = newg.getBBox();
|
|
while (newg.firstChild) { selected.appendChild(newg.firstChild); }
|
|
selected.parentNode.removeChild(newg);
|
|
} else if(elem.nodeName == 'path' && isWebkit) {
|
|
ret = getPathBBox(selected);
|
|
} else if(elem.nodeName == 'use' && !isWebkit) {
|
|
ret = selected.getBBox();
|
|
ret.x += parseFloat(selected.getAttribute('x')||0);
|
|
ret.y += parseFloat(selected.getAttribute('y')||0);
|
|
} else if(elem.nodeName == 'foreignObject') {
|
|
ret = selected.getBBox();
|
|
ret.x += parseFloat(selected.getAttribute('x')||0);
|
|
ret.y += parseFloat(selected.getAttribute('y')||0);
|
|
} else {
|
|
try { ret = selected.getBBox(); }
|
|
catch(e) {
|
|
// Check if element is child of a foreignObject
|
|
var fo = $(selected).closest("foreignObject");
|
|
if(fo.length) {
|
|
try {
|
|
ret = fo[0].getBBox();
|
|
} catch(e) {
|
|
ret = null;
|
|
}
|
|
} else {
|
|
ret = null;
|
|
}
|
|
}
|
|
}
|
|
|
|
// get the bounding box from the DOM (which is in that element's coordinate system)
|
|
return ret;
|
|
};
|
|
|
|
// we get the rotation angle in the tlist
|
|
this.getRotationAngle = function(elem, to_rad) {
|
|
var selected = elem || selectedElements[0];
|
|
// find the rotation transform (if any) and set it
|
|
var tlist = canvas.getTransformList(selected);
|
|
if(!tlist) return 0; // <svg> elements have no tlist
|
|
var N = tlist.numberOfItems;
|
|
for (var i = 0; i < N; ++i) {
|
|
var xform = tlist.getItem(i);
|
|
if (xform.type == 4) {
|
|
return to_rad ? xform.angle * Math.PI / 180.0 : xform.angle;
|
|
}
|
|
}
|
|
return 0.0;
|
|
};
|
|
|
|
// this should:
|
|
// - remove any old rotations if present
|
|
// - prepend a new rotation at the transformed center
|
|
this.setRotationAngle = function(val,preventUndo) {
|
|
// ensure val is the proper type
|
|
val = parseFloat(val);
|
|
var elem = selectedElements[0];
|
|
var oldTransform = elem.getAttribute("transform");
|
|
var bbox = canvas.getBBox(elem);
|
|
var cx = bbox.x+bbox.width/2, cy = bbox.y+bbox.height/2;
|
|
var tlist = canvas.getTransformList(elem);
|
|
|
|
// only remove the real rotational transform if present (i.e. at index=0)
|
|
if (tlist.numberOfItems > 0) {
|
|
var xform = tlist.getItem(0);
|
|
if (xform.type == 4) {
|
|
tlist.removeItem(0);
|
|
}
|
|
}
|
|
// find R_nc and insert it
|
|
if (val != 0) {
|
|
var center = transformPoint(cx,cy,transformListToTransform(tlist).matrix);
|
|
var R_nc = svgroot.createSVGTransform();
|
|
R_nc.setRotate(val, center.x, center.y);
|
|
tlist.insertItemBefore(R_nc,0);
|
|
}
|
|
else if (tlist.numberOfItems == 0) {
|
|
elem.removeAttribute("transform");
|
|
}
|
|
|
|
if (!preventUndo) {
|
|
// we need to undo it, then redo it so it can be undo-able! :)
|
|
// TODO: figure out how to make changes to transform list undo-able cross-browser?
|
|
var newTransform = elem.getAttribute("transform");
|
|
elem.setAttribute("transform", oldTransform);
|
|
this.changeSelectedAttribute("transform",newTransform,selectedElements);
|
|
}
|
|
var pointGripContainer = getElem("pathpointgrip_container");
|
|
// if(elem.nodeName == "path" && pointGripContainer) {
|
|
// pathActions.setPointContainerTransform(elem.getAttribute("transform"));
|
|
// }
|
|
var selector = selectorManager.requestSelector(selectedElements[0]);
|
|
selector.resize();
|
|
selector.updateGripCursors(val);
|
|
};
|
|
|
|
this.each = function(cb) {
|
|
$(svgroot).children().each(cb);
|
|
};
|
|
|
|
this.bind = function(event, f) {
|
|
var old = events[event];
|
|
events[event] = f;
|
|
return old;
|
|
};
|
|
|
|
this.setIdPrefix = function(p) {
|
|
idprefix = p;
|
|
};
|
|
|
|
this.getBold = function() {
|
|
// should only have one element selected
|
|
var selected = selectedElements[0];
|
|
if (selected != null && selected.tagName == "text" &&
|
|
selectedElements[1] == null)
|
|
{
|
|
return (selected.getAttribute("font-weight") == "bold");
|
|
}
|
|
return false;
|
|
};
|
|
|
|
this.setBold = function(b) {
|
|
var selected = selectedElements[0];
|
|
if (selected != null && selected.tagName == "text" &&
|
|
selectedElements[1] == null)
|
|
{
|
|
this.changeSelectedAttribute("font-weight", b ? "bold" : "normal");
|
|
}
|
|
};
|
|
|
|
this.getItalic = function() {
|
|
var selected = selectedElements[0];
|
|
if (selected != null && selected.tagName == "text" &&
|
|
selectedElements[1] == null)
|
|
{
|
|
return (selected.getAttribute("font-style") == "italic");
|
|
}
|
|
return false;
|
|
};
|
|
|
|
this.setItalic = function(i) {
|
|
var selected = selectedElements[0];
|
|
if (selected != null && selected.tagName == "text" &&
|
|
selectedElements[1] == null)
|
|
{
|
|
this.changeSelectedAttribute("font-style", i ? "italic" : "normal");
|
|
}
|
|
};
|
|
|
|
this.getFontFamily = function() {
|
|
return cur_text.font_family;
|
|
};
|
|
|
|
this.setFontFamily = function(val) {
|
|
cur_text.font_family = val;
|
|
this.changeSelectedAttribute("font-family", val);
|
|
};
|
|
|
|
this.getFontSize = function() {
|
|
return cur_text.font_size;
|
|
};
|
|
|
|
this.setFontSize = function(val) {
|
|
cur_text.font_size = val;
|
|
this.changeSelectedAttribute("font-size", val);
|
|
};
|
|
|
|
this.getText = function() {
|
|
var selected = selectedElements[0];
|
|
if (selected == null) { return ""; }
|
|
return selected.textContent;
|
|
};
|
|
|
|
this.setTextContent = function(val) {
|
|
this.changeSelectedAttribute("#text", val);
|
|
};
|
|
|
|
this.setImageURL = function(val) {
|
|
svgCanvas.changeSelectedAttribute("#href", val);
|
|
};
|
|
|
|
this.setRectRadius = function(val) {
|
|
var selected = selectedElements[0];
|
|
if (selected != null && selected.tagName == "rect") {
|
|
var r = selected.getAttribute("rx");
|
|
if (r != val) {
|
|
selected.setAttribute("rx", val);
|
|
selected.setAttribute("ry", val);
|
|
addCommandToHistory(new ChangeElementCommand(selected, {"rx":r, "ry":r}, "Radius"));
|
|
call("changed", [selected]);
|
|
}
|
|
}
|
|
};
|
|
|
|
this.setSegType = function(new_type) {
|
|
pathActions.setSegType(new_type);
|
|
}
|
|
|
|
var ffClone = function(elem) {
|
|
// Hack for Firefox bugs where text element features aren't updated
|
|
if(navigator.userAgent.indexOf('Gecko/') == -1) return elem;
|
|
var clone = elem.cloneNode(true)
|
|
elem.parentNode.insertBefore(clone, elem);
|
|
elem.parentNode.removeChild(elem);
|
|
selectorManager.releaseSelector(elem);
|
|
selectedElements[0] = clone;
|
|
selectorManager.requestSelector(clone).showGrips(true);
|
|
return clone;
|
|
}
|
|
|
|
// New functions for refactoring of Undo/Redo
|
|
|
|
// this is the stack that stores the original values, the elements and
|
|
// the attribute name for begin/finish
|
|
var undoChangeStackPointer = -1;
|
|
var undoableChangeStack = [];
|
|
|
|
// This function tells the canvas to remember the old values of the
|
|
// attrName attribute for each element sent in. The elements and values
|
|
// are stored on a stack, so the next call to finishUndoableChange() will
|
|
// pop the elements and old values off the stack, gets the current values
|
|
// from the DOM and uses all of these to construct the undo-able command.
|
|
this.beginUndoableChange = function(attrName, elems) {
|
|
var p = ++undoChangeStackPointer;
|
|
var i = elems.length;
|
|
var oldValues = new Array(i), elements = new Array(i);
|
|
while (i--) {
|
|
var elem = elems[i];
|
|
if (elem == null) continue;
|
|
elements[i] = elem;
|
|
oldValues[i] = elem.getAttribute(attrName);
|
|
}
|
|
undoableChangeStack[p] = {'attrName': attrName,
|
|
'oldValues': oldValues,
|
|
'elements': elements};
|
|
};
|
|
|
|
// This function makes the changes to the elements
|
|
this.changeSelectedAttributeNoUndo = function(attr, newValue, elems) {
|
|
var handle = svgroot.suspendRedraw(1000);
|
|
if(current_mode == 'pathedit') {
|
|
// Editing node
|
|
pathActions.moveNode(attr, newValue);
|
|
}
|
|
var elems = elems || selectedElements;
|
|
var i = elems.length;
|
|
while (i--) {
|
|
var elem = elems[i];
|
|
if (elem == null) continue;
|
|
// Set x,y vals on elements that don't have them
|
|
if((attr == 'x' || attr == 'y') && $.inArray(elem.tagName, ['g', 'polyline', 'path']) != -1) {
|
|
var bbox = canvas.getStrokedBBox([elem]);
|
|
var diff_x = attr == 'x' ? newValue - bbox.x : 0;
|
|
var diff_y = attr == 'y' ? newValue - bbox.y : 0;
|
|
canvas.moveSelectedElements(diff_x*current_zoom, diff_y*current_zoom, true);
|
|
continue;
|
|
}
|
|
|
|
// only allow the transform/opacity attribute to change on <g> elements, slightly hacky
|
|
if (elem.tagName == "g" && (attr != "transform" && attr != "opacity")) continue;
|
|
var oldval = attr == "#text" ? elem.textContent : elem.getAttribute(attr);
|
|
if (oldval == null) oldval = "";
|
|
if (oldval != String(newValue)) {
|
|
if (attr == "#text") {
|
|
var old_w = canvas.getBBox(elem).width;
|
|
elem.textContent = newValue;
|
|
elem = ffClone(elem);
|
|
|
|
// Hoped to solve the issue of moving text with text-anchor="start",
|
|
// but this doesn't actually fix it. Hopefully on the right track, though. -Fyrd
|
|
|
|
// var box=canvas.getBBox(elem), left=box.x, top=box.y, width=box.width,
|
|
// height=box.height, dx = width - old_w, dy=0;
|
|
// var angle = canvas.getRotationAngle(elem, true);
|
|
// if (angle) {
|
|
// var r = Math.sqrt( dx*dx + dy*dy );
|
|
// var theta = Math.atan2(dy,dx) - angle;
|
|
// dx = r * Math.cos(theta);
|
|
// dy = r * Math.sin(theta);
|
|
//
|
|
// elem.setAttribute('x', elem.getAttribute('x')-dx);
|
|
// elem.setAttribute('y', elem.getAttribute('y')-dy);
|
|
// }
|
|
|
|
} else if (attr == "#href") {
|
|
elem.setAttributeNS(xlinkns, "xlink:href", newValue);
|
|
}
|
|
else elem.setAttribute(attr, newValue);
|
|
if (i==0)
|
|
selectedBBoxes[i] = this.getBBox(elem);
|
|
// Use the Firefox ffClone hack for text elements with gradients or
|
|
// where other text attributes are changed.
|
|
if(elem.nodeName == 'text') {
|
|
if((newValue+'').indexOf('url') == 0 || $.inArray(attr, ['font-size','font-family','x','y']) != -1) {
|
|
elem = ffClone(elem);
|
|
}
|
|
}
|
|
// Timeout needed for Opera & Firefox
|
|
// codedread: it is now possible for this function to be called with elements
|
|
// that are not in the selectedElements array, we need to only request a
|
|
// selector if the element is in that array
|
|
if ($.inArray(elem, selectedElements) != -1) {
|
|
setTimeout(function() {
|
|
// Due to element replacement, this element may no longer
|
|
// be part of the DOM
|
|
if(!elem.parentNode) return;
|
|
selectorManager.requestSelector(elem).resize();
|
|
},0);
|
|
}
|
|
// if this element was rotated, and we changed the position of this element
|
|
// we need to update the rotational transform attribute
|
|
var angle = canvas.getRotationAngle(elem);
|
|
if (angle != 0 && attr != "transform") {
|
|
var tlist = canvas.getTransformList(elem);
|
|
var n = tlist.numberOfItems;
|
|
while (n--) {
|
|
var xform = tlist.getItem(n);
|
|
if (xform.type == 4) {
|
|
// remove old rotate
|
|
tlist.removeItem(n);
|
|
|
|
var box = canvas.getBBox(elem);
|
|
var center = transformPoint(box.x+box.width/2, box.y+box.height/2, transformListToTransform(tlist).matrix);
|
|
var cx = center.x,
|
|
cy = center.y;
|
|
var newrot = svgroot.createSVGTransform();
|
|
newrot.setRotate(angle, cx, cy);
|
|
tlist.insertItemBefore(newrot, n);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} // if oldValue != newValue
|
|
} // for each elem
|
|
svgroot.unsuspendRedraw(handle);
|
|
};
|
|
|
|
// This function returns a BatchCommand object which summarizes the
|
|
// change since beginUndoableChange was called. The command can then
|
|
// be added to the command history
|
|
this.finishUndoableChange = function() {
|
|
var p = undoChangeStackPointer--;
|
|
var changeset = undoableChangeStack[p];
|
|
var i = changeset['elements'].length;
|
|
var attrName = changeset['attrName'];
|
|
var batchCmd = new BatchCommand("Change " + attrName);
|
|
while (i--) {
|
|
var elem = changeset['elements'][i];
|
|
if (elem == null) continue;
|
|
var changes = {};
|
|
changes[attrName] = changeset['oldValues'][i];
|
|
if (changes[attrName] != elem.getAttribute(attrName)) {
|
|
batchCmd.addSubCommand(new ChangeElementCommand(elem, changes, attrName));
|
|
}
|
|
}
|
|
undoableChangeStack[p] = null;
|
|
return batchCmd;
|
|
};
|
|
|
|
// If you want to change all selectedElements, ignore the elems argument.
|
|
// If you want to change only a subset of selectedElements, then send the
|
|
// subset to this function in the elems argument.
|
|
this.changeSelectedAttribute = function(attr, val, elems) {
|
|
var elems = elems || selectedElements;
|
|
canvas.beginUndoableChange(attr, elems);
|
|
var i = elems.length;
|
|
|
|
canvas.changeSelectedAttributeNoUndo(attr, val, elems);
|
|
|
|
var batchCmd = canvas.finishUndoableChange();
|
|
if (!batchCmd.isEmpty()) {
|
|
addCommandToHistory(batchCmd);
|
|
}
|
|
};
|
|
|
|
this.deleteSelectedElements = function() {
|
|
var batchCmd = new BatchCommand("Delete Elements");
|
|
var len = selectedElements.length;
|
|
var selectedCopy = []; //selectedElements is being deleted
|
|
for (var i = 0; i < len; ++i) {
|
|
var selected = selectedElements[i];
|
|
if (selected == null) break;
|
|
|
|
var parent = selected.parentNode;
|
|
var t = selected;
|
|
// this will unselect the element and remove the selectedOutline
|
|
selectorManager.releaseSelector(t);
|
|
var elem = parent.removeChild(t);
|
|
selectedCopy.push(selected) //for the copy
|
|
selectedElements[i] = null;
|
|
batchCmd.addSubCommand(new RemoveElementCommand(elem, parent));
|
|
}
|
|
if (!batchCmd.isEmpty()) addCommandToHistory(batchCmd);
|
|
call("changed", selectedCopy);
|
|
canvas.clearSelection();
|
|
};
|
|
|
|
this.groupSelectedElements = function() {
|
|
var batchCmd = new BatchCommand("Group Elements");
|
|
|
|
// create and insert the group element
|
|
var g = addSvgElementFromJson({
|
|
"element": "g",
|
|
"attr": {
|
|
"id": getNextId()
|
|
}
|
|
});
|
|
batchCmd.addSubCommand(new InsertElementCommand(g));
|
|
|
|
// now move all children into the group
|
|
var i = selectedElements.length;
|
|
while (i--) {
|
|
var elem = selectedElements[i];
|
|
if (elem == null) continue;
|
|
var oldNextSibling = elem.nextSibling;
|
|
var oldParent = elem.parentNode;
|
|
g.appendChild(elem);
|
|
batchCmd.addSubCommand(new MoveElementCommand(elem, oldNextSibling, oldParent));
|
|
}
|
|
if (!batchCmd.isEmpty()) addCommandToHistory(batchCmd);
|
|
|
|
// update selection
|
|
canvas.clearSelection();
|
|
canvas.addToSelection([g], true);
|
|
};
|
|
|
|
this.ungroupSelectedElement = function() {
|
|
var g = selectedElements[0];
|
|
if (g.tagName == "g") {
|
|
var batchCmd = new BatchCommand("Ungroup Elements");
|
|
var parent = g.parentNode;
|
|
var anchor = g.previousSibling;
|
|
var children = new Array(g.childNodes.length);
|
|
var xform = g.getAttribute("transform");
|
|
// get consolidated matrix
|
|
var glist = canvas.getTransformList(g);
|
|
var m = transformListToTransform(glist).matrix;
|
|
|
|
// TODO: get all fill/stroke properties from the group that we are about to destroy
|
|
// "fill", "fill-opacity", "fill-rule", "stroke", "stroke-dasharray", "stroke-dashoffset",
|
|
// "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity",
|
|
// "stroke-width"
|
|
// and then for each child, if they do not have the attribute (or the value is 'inherit')
|
|
// then set the child's attribute
|
|
|
|
// TODO: get the group's opacity and propagate it down to the children (multiply it
|
|
// by the child's opacity (or 1.0)
|
|
|
|
var i = 0;
|
|
var gangle = canvas.getRotationAngle(g);
|
|
while (g.firstChild) {
|
|
var elem = g.firstChild;
|
|
var oldNextSibling = elem.nextSibling;
|
|
var oldParent = elem.parentNode;
|
|
children[i++] = elem = parent.insertBefore(elem, anchor);
|
|
batchCmd.addSubCommand(new MoveElementCommand(elem, oldNextSibling, oldParent));
|
|
|
|
var chtlist = canvas.getTransformList(elem);
|
|
|
|
if (glist.numberOfItems) {
|
|
// TODO: if the group's transform is just a rotate, we can always transfer the
|
|
// rotate() down to the children (collapsing consecutive rotates and factoring
|
|
// out any translates)
|
|
if (gangle && glist.numberOfItems == 1) {
|
|
// [Rg] [Rc] [Mc]
|
|
// we want [Tr] [Rc2] [Mc] where:
|
|
// - [Rc2] is at the child's current center but has the
|
|
// sum of the group and child's rotation angles
|
|
// - [Tr] is the equivalent translation that this child
|
|
// undergoes if the group wasn't there
|
|
|
|
// [Tr] = [Rg] [Rc] [Rc2_inv]
|
|
|
|
// get group's rotation matrix (Rg)
|
|
var rgm = glist.getItem(0).matrix;
|
|
|
|
// get child's rotation matrix (Rc)
|
|
var rcm = svgroot.createSVGMatrix();
|
|
var cangle = canvas.getRotationAngle(elem);
|
|
if (cangle) {
|
|
rcm = chtlist.getItem(0).matrix;
|
|
}
|
|
|
|
// get child's old center of rotation
|
|
var cbox = canvas.getBBox(elem);
|
|
var ceqm = transformListToTransform(chtlist).matrix;
|
|
var coldc = transformPoint(cbox.x+cbox.width/2, cbox.y+cbox.height/2,ceqm);
|
|
|
|
// sum group and child's angles
|
|
var sangle = gangle + cangle;
|
|
|
|
// get child's rotation at the old center (Rc2_inv)
|
|
var r2 = svgroot.createSVGTransform();
|
|
r2.setRotate(sangle, coldc.x, coldc.y);
|
|
|
|
// calculate equivalent translate
|
|
var trm = matrixMultiply(rgm, rcm, r2.matrix.inverse());
|
|
|
|
// set up tlist
|
|
if (cangle) {
|
|
chtlist.removeItem(0);
|
|
}
|
|
|
|
if (sangle) {
|
|
chtlist.insertItemBefore(r2, 0);
|
|
}
|
|
|
|
if (trm.e || trm.f) {
|
|
var tr = svgroot.createSVGTransform();
|
|
tr.setTranslate(trm.e, trm.f);
|
|
chtlist.insertItemBefore(tr, 0);
|
|
}
|
|
}
|
|
else { // more complicated than just a rotate
|
|
// transfer the group's transform down to each child and then
|
|
// call recalculateDimensions()
|
|
var oldxform = elem.getAttribute("transform");
|
|
var changes = {};
|
|
changes["transform"] = oldxform ? oldxform : "";
|
|
|
|
var newxform = svgroot.createSVGTransform();
|
|
|
|
// [ gm ] [ chm ] = [ chm ] [ gm' ]
|
|
// [ gm' ] = [ chm_inv ] [ gm ] [ chm ]
|
|
var chm = transformListToTransform(chtlist).matrix,
|
|
chm_inv = chm.inverse();
|
|
var gm = matrixMultiply( chm_inv, m, chm );
|
|
newxform.setMatrix(gm);
|
|
chtlist.appendItem(newxform);
|
|
}
|
|
batchCmd.addSubCommand(recalculateDimensions(elem));
|
|
}
|
|
}
|
|
|
|
// remove transform and make it undo-able
|
|
if (xform) {
|
|
var changes = {};
|
|
changes["transform"] = xform;
|
|
g.setAttribute("transform", "");
|
|
g.removeAttribute("transform");
|
|
batchCmd.addSubCommand(new ChangeElementCommand(g, changes));
|
|
}
|
|
|
|
// remove the group from the selection
|
|
canvas.clearSelection();
|
|
|
|
// delete the group element (but make undo-able)
|
|
g = parent.removeChild(g);
|
|
batchCmd.addSubCommand(new RemoveElementCommand(g, parent));
|
|
|
|
if (!batchCmd.isEmpty()) addCommandToHistory(batchCmd);
|
|
|
|
// update selection
|
|
canvas.addToSelection(children);
|
|
}
|
|
};
|
|
|
|
this.moveToTopSelectedElement = function() {
|
|
var selected = selectedElements[0];
|
|
if (selected != null) {
|
|
var t = selected;
|
|
var oldParent = t.parentNode;
|
|
var oldNextSibling = t.nextSibling;
|
|
if (oldNextSibling == selectorManager.selectorParentGroup) oldNextSibling = null;
|
|
t = t.parentNode.appendChild(t);
|
|
addCommandToHistory(new MoveElementCommand(t, oldNextSibling, oldParent, "top"));
|
|
}
|
|
};
|
|
|
|
this.moveToBottomSelectedElement = function() {
|
|
var selected = selectedElements[0];
|
|
if (selected != null) {
|
|
var t = selected;
|
|
var oldParent = t.parentNode;
|
|
var oldNextSibling = t.nextSibling;
|
|
if (oldNextSibling == selectorManager.selectorParentGroup) oldNextSibling = null;
|
|
var firstChild = t.parentNode.firstChild;
|
|
if (firstChild.tagName == 'title') {
|
|
firstChild = firstChild.nextSibling;
|
|
}
|
|
// This can probably be removed, as the defs should not ever apppear
|
|
// inside a layer group
|
|
if (firstChild.tagName == 'defs') {
|
|
firstChild = firstChild.nextSibling;
|
|
}
|
|
t = t.parentNode.insertBefore(t, firstChild);
|
|
addCommandToHistory(new MoveElementCommand(t, oldNextSibling, oldParent, "bottom"));
|
|
}
|
|
};
|
|
|
|
this.moveSelectedElements = function(dx,dy,undoable) {
|
|
// if undoable is not sent, default to true
|
|
// if single values, scale them to the zoom
|
|
if (dx.constructor != Array) {
|
|
dx /= current_zoom;
|
|
dy /= current_zoom;
|
|
}
|
|
var undoable = undoable || true;
|
|
var batchCmd = new BatchCommand("position");
|
|
var i = selectedElements.length;
|
|
while (i--) {
|
|
var selected = selectedElements[i];
|
|
if (selected != null) {
|
|
if (i==0)
|
|
selectedBBoxes[i] = this.getBBox(selected);
|
|
|
|
var xform = svgroot.createSVGTransform();
|
|
var tlist = canvas.getTransformList(selected);
|
|
|
|
// dx and dy could be arrays
|
|
if (dx.constructor == Array) {
|
|
if (i==0) {
|
|
selectedBBoxes[i].x += dx[i];
|
|
selectedBBoxes[i].y += dy[i];
|
|
}
|
|
xform.setTranslate(dx[i],dy[i]);
|
|
} else {
|
|
if (i==0) {
|
|
selectedBBoxes[i].x += dx;
|
|
selectedBBoxes[i].y += dy;
|
|
}
|
|
xform.setTranslate(dx,dy);
|
|
}
|
|
|
|
tlist.insertItemBefore(xform, 0);
|
|
|
|
var cmd = recalculateDimensions(selected);
|
|
if (cmd) {
|
|
batchCmd.addSubCommand(cmd);
|
|
}
|
|
selectorManager.requestSelector(selected).resize();
|
|
}
|
|
}
|
|
if (!batchCmd.isEmpty()) {
|
|
if (undoable)
|
|
addCommandToHistory(batchCmd);
|
|
call("changed", selectedElements);
|
|
return batchCmd;
|
|
}
|
|
};
|
|
|
|
var getPathBBox = function(path) {
|
|
// Get correct BBox for a path in Webkit
|
|
|
|
// Converted from code found here:
|
|
// http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html
|
|
|
|
var seglist = path.pathSegList;
|
|
var tot = seglist.numberOfItems;
|
|
|
|
var bounds = [[], []];
|
|
var start = seglist.getItem(0);
|
|
var P0 = [start.x, start.y];
|
|
|
|
for(var i=0; i < tot; i++) {
|
|
var seg = seglist.getItem(i);
|
|
if(!seg.x) continue;
|
|
|
|
// Add actual points to limits
|
|
bounds[0].push(P0[0]);
|
|
bounds[1].push(P0[1]);
|
|
|
|
if(seg.x1) {
|
|
var P1 = [seg.x1, seg.y1],
|
|
P2 = [seg.x2, seg.y2],
|
|
P3 = [seg.x, seg.y];
|
|
|
|
for(var j=0; j < 2; j++) {
|
|
|
|
var calc = function(t) {
|
|
return Math.pow(1-t,3) * P0[j]
|
|
+ 3 * Math.pow(1-t,2) * t * P1[j]
|
|
+ 3 * (1-t) * Math.pow(t,2) * P2[j]
|
|
+ Math.pow(t,3) * P3[j];
|
|
};
|
|
|
|
var b = 6 * P0[j] - 12 * P1[j] + 6 * P2[j];
|
|
var a = -3 * P0[j] + 9 * P1[j] - 9 * P2[j] + 3 * P3[j];
|
|
var c = 3 * P1[j] - 3 * P0[j];
|
|
|
|
if(a == 0) {
|
|
if(b == 0) {
|
|
continue;
|
|
}
|
|
var t = -c / b;
|
|
if(0 < t && t < 1) {
|
|
bounds[j].push(calc(t));
|
|
}
|
|
continue;
|
|
}
|
|
|
|
var b2ac = Math.pow(b,2) - 4 * c * a;
|
|
if(b2ac < 0) continue;
|
|
var t1 = (-b + Math.sqrt(b2ac))/(2 * a);
|
|
if(0 < t1 && t1 < 1) bounds[j].push(calc(t1));
|
|
var t2 = (-b - Math.sqrt(b2ac))/(2 * a);
|
|
if(0 < t2 && t2 < 1) bounds[j].push(calc(t2));
|
|
}
|
|
P0 = P3;
|
|
} else {
|
|
bounds[0].push(seg.x);
|
|
bounds[1].push(seg.y);
|
|
}
|
|
}
|
|
|
|
var x = Math.min.apply(null, bounds[0]);
|
|
var w = Math.max.apply(null, bounds[0]) - x;
|
|
var y = Math.min.apply(null, bounds[1]);
|
|
var h = Math.max.apply(null, bounds[1]) - y;
|
|
return {
|
|
'x': x,
|
|
'y': y,
|
|
'width': w,
|
|
'height': h
|
|
};
|
|
}
|
|
|
|
this.updateCanvas = function(w, h, w_orig, h_orig) {
|
|
svgroot.setAttribute("width", w);
|
|
svgroot.setAttribute("height", h);
|
|
var bg = $('#canvasBackground')[0];
|
|
var old_x = svgcontent.getAttribute('x');
|
|
var old_y = svgcontent.getAttribute('y');
|
|
var x = (w/2 - svgcontent.getAttribute('width')*current_zoom/2);
|
|
var y = (h/2 - svgcontent.getAttribute('height')*current_zoom/2);
|
|
|
|
assignAttributes(svgcontent, {
|
|
'x': x,
|
|
'y': y
|
|
});
|
|
|
|
assignAttributes(bg, {
|
|
width: svgcontent.getAttribute('width') * current_zoom,
|
|
height: svgcontent.getAttribute('height') * current_zoom,
|
|
x: x,
|
|
y: y
|
|
});
|
|
|
|
selectorManager.selectorParentGroup.setAttribute("transform","translate(" + x + "," + y + ")");
|
|
|
|
return {x:x, y:y, old_x:old_x, old_y:old_y, d_x:x - old_x, d_y:y - old_y};
|
|
}
|
|
|
|
this.getStrokedBBox = function(elems) {
|
|
if(!elems) elems = canvas.getVisibleElements();
|
|
if(!elems.length) return false;
|
|
// Make sure the expected BBox is returned if the element is a group
|
|
var getCheckedBBox = function(elem) {
|
|
|
|
try {
|
|
// TODO: Fix issue with rotated groups. Currently they work
|
|
// fine in FF, but not in other browsers (same problem mentioned
|
|
// in Issue 339 comment #2).
|
|
|
|
var bb = canvas.getBBox(elem);
|
|
|
|
var angle = canvas.getRotationAngle(elem);
|
|
if ((angle && angle % 90) || hasMatrixTransform(canvas.getTransformList(elem))) {
|
|
// Accurate way to get BBox of rotated element in Firefox:
|
|
// Put element in group and get its BBox
|
|
|
|
var good_bb = false;
|
|
|
|
// Get the BBox from the raw path for these elements
|
|
var elemNames = ['ellipse','path','line','polyline','polygon'];
|
|
if($.inArray(elem.tagName, elemNames) != -1) {
|
|
bb = good_bb = canvas.convertToPath(elem, true, angle);
|
|
} else if(elem.tagName == 'rect') {
|
|
// Look for radius
|
|
var rx = elem.getAttribute('rx');
|
|
var ry = elem.getAttribute('ry');
|
|
if(rx || ry) {
|
|
bb = good_bb = canvas.convertToPath(elem, true, angle);
|
|
}
|
|
}
|
|
|
|
if(!good_bb) {
|
|
var g = document.createElementNS(svgns, "g");
|
|
var parent = elem.parentNode;
|
|
parent.replaceChild(g, elem);
|
|
g.appendChild(elem);
|
|
bb = g.getBBox();
|
|
parent.insertBefore(elem,g);
|
|
parent.removeChild(g);
|
|
}
|
|
|
|
|
|
// Old method: Works by giving the rotated BBox,
|
|
// this is (unfortunately) what Opera and Safari do
|
|
// natively when getting the BBox of the parent group
|
|
// var angle = angle * Math.PI / 180.0;
|
|
// var rminx = Number.MAX_VALUE, rminy = Number.MAX_VALUE,
|
|
// rmaxx = Number.MIN_VALUE, rmaxy = Number.MIN_VALUE;
|
|
// var cx = round(bb.x + bb.width/2),
|
|
// cy = round(bb.y + bb.height/2);
|
|
// var pts = [ [bb.x - cx, bb.y - cy],
|
|
// [bb.x + bb.width - cx, bb.y - cy],
|
|
// [bb.x + bb.width - cx, bb.y + bb.height - cy],
|
|
// [bb.x - cx, bb.y + bb.height - cy] ];
|
|
// var j = 4;
|
|
// while (j--) {
|
|
// var x = pts[j][0],
|
|
// y = pts[j][1],
|
|
// r = Math.sqrt( x*x + y*y );
|
|
// var theta = Math.atan2(y,x) + angle;
|
|
// x = round(r * Math.cos(theta) + cx);
|
|
// y = round(r * Math.sin(theta) + cy);
|
|
//
|
|
// // now set the bbox for the shape after it's been rotated
|
|
// if (x < rminx) rminx = x;
|
|
// if (y < rminy) rminy = y;
|
|
// if (x > rmaxx) rmaxx = x;
|
|
// if (y > rmaxy) rmaxy = y;
|
|
// }
|
|
//
|
|
// bb.x = rminx;
|
|
// bb.y = rminy;
|
|
// bb.width = rmaxx - rminx;
|
|
// bb.height = rmaxy - rminy;
|
|
}
|
|
|
|
return bb;
|
|
} catch(e) {
|
|
console.log(elem, e);
|
|
return null;
|
|
}
|
|
|
|
}
|
|
var full_bb;
|
|
$.each(elems, function() {
|
|
if(full_bb) return;
|
|
if(!this.parentNode) return;
|
|
full_bb = getCheckedBBox(this);
|
|
});
|
|
|
|
// This shouldn't ever happen...
|
|
if(full_bb == null) return null;
|
|
|
|
// full_bb doesn't include the stoke, so this does no good!
|
|
// if(elems.length == 1) return full_bb;
|
|
|
|
var max_x = full_bb.x + full_bb.width;
|
|
var max_y = full_bb.y + full_bb.height;
|
|
var min_x = full_bb.x;
|
|
var min_y = full_bb.y;
|
|
|
|
// FIXME: same re-creation problem with this function as getCheckedBBox() above
|
|
var getOffset = function(elem) {
|
|
var sw = elem.getAttribute("stroke-width");
|
|
var offset = 0;
|
|
if (elem.getAttribute("stroke") != "none" && !isNaN(sw)) {
|
|
offset += sw/2;
|
|
}
|
|
return offset;
|
|
}
|
|
var bboxes = [];
|
|
$.each(elems, function(i, elem) {
|
|
var cur_bb = getCheckedBBox(elem);
|
|
if(cur_bb) {
|
|
var offset = getOffset(elem);
|
|
min_x = Math.min(min_x, cur_bb.x - offset);
|
|
min_y = Math.min(min_y, cur_bb.y - offset);
|
|
bboxes.push(cur_bb);
|
|
}
|
|
});
|
|
|
|
full_bb.x = min_x;
|
|
full_bb.y = min_y;
|
|
|
|
$.each(elems, function(i, elem) {
|
|
var cur_bb = bboxes[i];
|
|
// ensure that elem is really an element node
|
|
if (cur_bb && elem.nodeType == 1) {
|
|
var offset = getOffset(elem);
|
|
max_x = Math.max(max_x, cur_bb.x + cur_bb.width + offset);
|
|
max_y = Math.max(max_y, cur_bb.y + cur_bb.height + offset);
|
|
}
|
|
});
|
|
|
|
full_bb.width = max_x - min_x;
|
|
full_bb.height = max_y - min_y;
|
|
return full_bb;
|
|
}
|
|
|
|
this.getVisibleElements = function(parent, includeBBox) {
|
|
if(!parent) parent = $(svgcontent).children(); // Prevent layers from being included
|
|
|
|
var contentElems = [];
|
|
$(parent).children().each(function(i, elem) {
|
|
try {
|
|
var box = elem.getBBox();
|
|
if (box) {
|
|
var item = includeBBox?{'elem':elem, 'bbox':canvas.getStrokedBBox([elem])}:elem;
|
|
contentElems.push(item);
|
|
}
|
|
} catch(e) {}
|
|
});
|
|
return contentElems.reverse();
|
|
}
|
|
|
|
this.cycleElement = function(next) {
|
|
var cur_elem = selectedElements[0];
|
|
var elem = false;
|
|
var all_elems = this.getVisibleElements(current_layer);
|
|
if (cur_elem == null) {
|
|
var num = next?all_elems.length-1:0;
|
|
elem = all_elems[num];
|
|
} else {
|
|
var i = all_elems.length;
|
|
while(i--) {
|
|
if(all_elems[i] == cur_elem) {
|
|
var num = next?i-1:i+1;
|
|
if(num >= all_elems.length) {
|
|
num = 0;
|
|
} else if(num < 0) {
|
|
num = all_elems.length-1;
|
|
}
|
|
elem = all_elems[num];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
canvas.clearSelection();
|
|
canvas.addToSelection([elem], true);
|
|
call("selected", selectedElements);
|
|
}
|
|
|
|
var resetUndoStack = function() {
|
|
undoStack = [];
|
|
undoStackPointer = 0;
|
|
};
|
|
|
|
this.getUndoStackSize = function() { return undoStackPointer; };
|
|
this.getRedoStackSize = function() { return undoStack.length - undoStackPointer; };
|
|
|
|
this.getNextUndoCommandText = function() {
|
|
if (undoStackPointer > 0)
|
|
return undoStack[undoStackPointer-1].text;
|
|
return "";
|
|
};
|
|
this.getNextRedoCommandText = function() {
|
|
if (undoStackPointer < undoStack.length)
|
|
return undoStack[undoStackPointer].text;
|
|
return "";
|
|
};
|
|
|
|
this.undo = function() {
|
|
if (undoStackPointer > 0) {
|
|
this.clearSelection();
|
|
var cmd = undoStack[--undoStackPointer];
|
|
cmd.unapply();
|
|
pathActions.clear();
|
|
call("changed", cmd.elements());
|
|
}
|
|
};
|
|
this.redo = function() {
|
|
if (undoStackPointer < undoStack.length && undoStack.length > 0) {
|
|
this.clearSelection();
|
|
var cmd = undoStack[undoStackPointer++];
|
|
cmd.apply();
|
|
pathActions.clear();
|
|
call("changed", cmd.elements());
|
|
}
|
|
};
|
|
|
|
// this function no longer uses cloneNode because we need to update the id
|
|
// of every copied element (even the descendants)
|
|
// we also do it manually because Opera/Win/non-EN puts , instead of .
|
|
var copyElem = function(el) {
|
|
// manually create a copy of the element
|
|
var new_el = document.createElementNS(el.namespaceURI, el.nodeName);
|
|
$.each(el.attributes, function(i, attr) {
|
|
if (attr.localName != '-moz-math-font-style') {
|
|
new_el.setAttributeNS(attr.namespaceURI, attr.nodeName, attr.nodeValue);
|
|
}
|
|
});
|
|
// set the copied element's new id
|
|
new_el.removeAttribute("id");
|
|
new_el.id = getNextId();
|
|
// manually increment obj_num because our cloned elements are not in the DOM yet
|
|
obj_num++;
|
|
|
|
// Opera's "d" value needs to be reset for Opera/Win/non-EN
|
|
// Also needed for webkit (else does not keep curved segments on clone)
|
|
if((isWebkit || !support.goodDecimals) && el.nodeName == 'path') {
|
|
var fixed_d = pathActions.convertPath(el);
|
|
new_el.setAttribute('d', fixed_d);
|
|
}
|
|
|
|
// now create copies of all children
|
|
$.each(el.childNodes, function(i, child) {
|
|
switch(child.nodeType) {
|
|
case 1: // element node
|
|
new_el.appendChild(copyElem(child));
|
|
break;
|
|
case 3: // text node
|
|
new_el.textContent = child.nodeValue;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
});
|
|
if(new_el.tagName == 'image') {
|
|
preventClickDefault(new_el);
|
|
}
|
|
return new_el;
|
|
};
|
|
|
|
var preventClickDefault = function(img) {
|
|
$(img).click(function(e){e.preventDefault()});
|
|
}
|
|
|
|
// this creates deep DOM copies (clones) of all selected elements
|
|
this.cloneSelectedElements = function() {
|
|
var batchCmd = new BatchCommand("Clone Elements");
|
|
// find all the elements selected (stop at first null)
|
|
var len = selectedElements.length;
|
|
for (var i = 0; i < len; ++i) {
|
|
var elem = selectedElements[i];
|
|
if (elem == null) break;
|
|
}
|
|
// use slice to quickly get the subset of elements we need
|
|
var copiedElements = selectedElements.slice(0,i);
|
|
this.clearSelection();
|
|
// note that we loop in the reverse way because of the way elements are added
|
|
// to the selectedElements array (top-first)
|
|
var i = copiedElements.length;
|
|
while (i--) {
|
|
// clone each element and replace it within copiedElements
|
|
var elem = copiedElements[i] = copyElem(copiedElements[i]);
|
|
current_layer.appendChild(elem);
|
|
batchCmd.addSubCommand(new InsertElementCommand(elem));
|
|
}
|
|
|
|
if (!batchCmd.isEmpty()) {
|
|
this.addToSelection(copiedElements.reverse()); // Need to reverse for correct selection-adding
|
|
this.moveSelectedElements(20,20,false);
|
|
addCommandToHistory(batchCmd);
|
|
call("selected", selectedElements);
|
|
}
|
|
};
|
|
|
|
this.setBackground = function(color, url) {
|
|
var bg = getElem('canvasBackground');
|
|
var border = $(bg).find('rect')[0];
|
|
var bg_img = getElem('background_image');
|
|
border.setAttribute('fill',color);
|
|
if(url) {
|
|
if(!bg_img) {
|
|
bg_img = svgdoc.createElementNS(svgns, "image");
|
|
assignAttributes(bg_img, {
|
|
'id': 'background_image',
|
|
'width': '100%',
|
|
'height': '100%',
|
|
'preserveAspectRatio': 'xMinYMin',
|
|
'style':'pointer-events:none'
|
|
});
|
|
}
|
|
bg_img.setAttributeNS(xlinkns, "xlink:href", url);
|
|
bg.appendChild(bg_img);
|
|
} else if(bg_img) {
|
|
bg_img.parentNode.removeChild(bg_img);
|
|
}
|
|
}
|
|
|
|
// aligns selected elements (type is a char - see switch below for explanation)
|
|
// relative_to can be "selected", "largest", "smallest", "page"
|
|
this.alignSelectedElements = function(type, relative_to) {
|
|
var bboxes = [], angles = [];
|
|
var minx = Number.MAX_VALUE, maxx = Number.MIN_VALUE, miny = Number.MAX_VALUE, maxy = Number.MIN_VALUE;
|
|
var curwidth = Number.MIN_VALUE, curheight = Number.MIN_VALUE;
|
|
var len = selectedElements.length;
|
|
if (!len) return;
|
|
for (var i = 0; i < len; ++i) {
|
|
if (selectedElements[i] == null) break;
|
|
var elem = selectedElements[i];
|
|
bboxes[i] = canvas.getStrokedBBox([elem]);
|
|
|
|
// now bbox is axis-aligned and handles rotation
|
|
switch (relative_to) {
|
|
case 'smallest':
|
|
if ( (type == 'l' || type == 'c' || type == 'r') && (curwidth == Number.MIN_VALUE || curwidth > bboxes[i].width) ||
|
|
(type == 't' || type == 'm' || type == 'b') && (curheight == Number.MIN_VALUE || curheight > bboxes[i].height) ) {
|
|
minx = bboxes[i].x;
|
|
miny = bboxes[i].y;
|
|
maxx = bboxes[i].x + bboxes[i].width;
|
|
maxy = bboxes[i].y + bboxes[i].height;
|
|
curwidth = bboxes[i].width;
|
|
curheight = bboxes[i].height;
|
|
}
|
|
break;
|
|
case 'largest':
|
|
if ( (type == 'l' || type == 'c' || type == 'r') && (curwidth == Number.MIN_VALUE || curwidth < bboxes[i].width) ||
|
|
(type == 't' || type == 'm' || type == 'b') && (curheight == Number.MIN_VALUE || curheight < bboxes[i].height) ) {
|
|
minx = bboxes[i].x;
|
|
miny = bboxes[i].y;
|
|
maxx = bboxes[i].x + bboxes[i].width;
|
|
maxy = bboxes[i].y + bboxes[i].height;
|
|
curwidth = bboxes[i].width;
|
|
curheight = bboxes[i].height;
|
|
}
|
|
break;
|
|
default: // 'selected'
|
|
if (bboxes[i].x < minx) minx = bboxes[i].x;
|
|
if (bboxes[i].y < miny) miny = bboxes[i].y;
|
|
if (bboxes[i].x + bboxes[i].width > maxx) maxx = bboxes[i].x + bboxes[i].width;
|
|
if (bboxes[i].y + bboxes[i].height > maxy) maxy = bboxes[i].y + bboxes[i].height;
|
|
break;
|
|
}
|
|
} // loop for each element to find the bbox and adjust min/max
|
|
|
|
if (relative_to == 'page') {
|
|
minx = 0;
|
|
miny = 0;
|
|
maxx = svgcontent.getAttribute('width');
|
|
maxy = svgcontent.getAttribute('height');
|
|
}
|
|
|
|
var dx = new Array(len);
|
|
var dy = new Array(len);
|
|
for (var i = 0; i < len; ++i) {
|
|
if (selectedElements[i] == null) break;
|
|
var elem = selectedElements[i];
|
|
var bbox = bboxes[i];
|
|
dx[i] = 0;
|
|
dy[i] = 0;
|
|
switch (type) {
|
|
case 'l': // left (horizontal)
|
|
dx[i] = minx - bbox.x;
|
|
break;
|
|
case 'c': // center (horizontal)
|
|
dx[i] = (minx+maxx)/2 - (bbox.x + bbox.width/2);
|
|
break;
|
|
case 'r': // right (horizontal)
|
|
dx[i] = maxx - (bbox.x + bbox.width);
|
|
break;
|
|
case 't': // top (vertical)
|
|
dy[i] = miny - bbox.y;
|
|
break;
|
|
case 'm': // middle (vertical)
|
|
dy[i] = (miny+maxy)/2 - (bbox.y + bbox.height/2);
|
|
break;
|
|
case 'b': // bottom (vertical)
|
|
dy[i] = maxy - (bbox.y + bbox.height);
|
|
break;
|
|
}
|
|
}
|
|
this.moveSelectedElements(dx,dy);
|
|
};
|
|
this.getZoom = function(){return current_zoom;};
|
|
|
|
// Function: getVersion
|
|
// Returns a string which describes the revision number of SvgCanvas.
|
|
this.getVersion = function() {
|
|
return "svgcanvas.js ($Rev$)";
|
|
};
|
|
|
|
this.setUiStrings = function(strs) {
|
|
$.extend(uiStrings, strs);
|
|
}
|
|
|
|
this.clear();
|
|
|
|
this.ready = function(cb) {
|
|
this.callback = cb;
|
|
}
|
|
|
|
this.runCallback = function() {
|
|
if(this.callback) {
|
|
this.callback();
|
|
}
|
|
}
|
|
|
|
function getElem(id) {
|
|
if(svgroot.querySelector) {
|
|
// querySelector lookup
|
|
return svgroot.querySelector('#'+id);
|
|
} else if(svgdoc.evaluate) {
|
|
// xpath lookup
|
|
return svgdoc.evaluate('svg:svg[@id="svgroot"]//svg:*[@id="'+id+'"]', container, function() { return "http://www.w3.org/2000/svg"; }, 9, null).singleNodeValue;
|
|
} else {
|
|
// jQuery lookup: twice as slow as xpath in FF
|
|
return $(svgroot).find('[id=' + id + ']')[0];
|
|
}
|
|
|
|
// getElementById lookup: includes icons, not good
|
|
// return svgdoc.getElementById(id);
|
|
}
|
|
|
|
// Being able to access private methods publicly seems wrong somehow,
|
|
// but currently appears to be the best way to allow testing and provide
|
|
// access to them to plugins.
|
|
this.getPrivateMethods = function() {
|
|
return {
|
|
addCommandToHistory: addCommandToHistory,
|
|
addGradient: addGradient,
|
|
addSvgElementFromJson: addSvgElementFromJson,
|
|
assignAttributes: assignAttributes,
|
|
BatchCommand: BatchCommand,
|
|
call: call,
|
|
ChangeElementCommand: ChangeElementCommand,
|
|
cleanupElement: cleanupElement,
|
|
copyElem: copyElem,
|
|
ffClone: ffClone,
|
|
findDefs: findDefs,
|
|
findDuplicateGradient: findDuplicateGradient,
|
|
fromXml: fromXml,
|
|
getElem: getElem,
|
|
getId: getId,
|
|
getIntersectionList: getIntersectionList,
|
|
getNextId: getNextId,
|
|
getPathBBox: getPathBBox,
|
|
getUrlFromAttr: getUrlFromAttr,
|
|
hasMatrixTransform: hasMatrixTransform,
|
|
identifyLayers: identifyLayers,
|
|
InsertElementCommand: InsertElementCommand,
|
|
isIdentity: isIdentity,
|
|
logMatrix: logMatrix,
|
|
matrixMultiply: matrixMultiply,
|
|
MoveElementCommand: MoveElementCommand,
|
|
preventClickDefault: preventClickDefault,
|
|
recalculateAllSelectedDimensions: recalculateAllSelectedDimensions,
|
|
recalculateDimensions: recalculateDimensions,
|
|
remapElement: remapElement,
|
|
RemoveElementCommand: RemoveElementCommand,
|
|
removeUnusedGrads: removeUnusedGrads,
|
|
resetUndoStack: resetUndoStack,
|
|
round: round,
|
|
runExtensions: runExtensions,
|
|
sanitizeSvg: sanitizeSvg,
|
|
Selector: Selector,
|
|
SelectorManager: SelectorManager,
|
|
shortFloat: shortFloat,
|
|
svgCanvasToString: svgCanvasToString,
|
|
SVGEditTransformList: SVGEditTransformList,
|
|
svgToString: svgToString,
|
|
toString: toString,
|
|
toXml: toXml,
|
|
transformBox: transformBox,
|
|
transformListToTransform: transformListToTransform,
|
|
transformPoint: transformPoint,
|
|
transformToObj: transformToObj,
|
|
walkTree: walkTree
|
|
}
|
|
}
|
|
|
|
this.addExtension = function(name, ext_func) {
|
|
if(!(name in extensions)) {
|
|
// Provide private vars/funcs here. Is there a better way to do this?
|
|
var ext = ext_func($.extend(canvas.getPrivateMethods(), {
|
|
svgroot: svgroot,
|
|
svgcontent: svgcontent,
|
|
nonce: nonce,
|
|
selectorManager: selectorManager
|
|
}));
|
|
extensions[name] = ext;
|
|
call("extension_added", ext);
|
|
} else {
|
|
console.log('Cannot add extension "' + name + '", an extension by that name already exists"');
|
|
}
|
|
};
|
|
|
|
// Test support for features/bugs
|
|
(function() {
|
|
// segList functions (for FF1.5 and 2.0)
|
|
var path = document.createElementNS(svgns,'path');
|
|
path.setAttribute('d','M0,0 10,10');
|
|
var seglist = path.pathSegList;
|
|
var seg = path.createSVGPathSegLinetoAbs(5,5);
|
|
try {
|
|
seglist.replaceItem(seg, 0);
|
|
support.pathReplaceItem = true;
|
|
} catch(err) {
|
|
support.pathReplaceItem = false;
|
|
}
|
|
|
|
try {
|
|
seglist.insertItemBefore(seg, 0);
|
|
support.pathInsertItemBefore = true;
|
|
} catch(err) {
|
|
support.pathInsertItemBefore = false;
|
|
}
|
|
|
|
// Correct decimals on clone attributes (Opera/win/non-en)
|
|
var rect = document.createElementNS(svgns,'rect');
|
|
rect.setAttribute('x',.1);
|
|
var crect = rect.cloneNode(false);
|
|
support.goodDecimals = (crect.getAttribute('x').indexOf(',') == -1);
|
|
|
|
// Get correct em/ex values
|
|
var rect = document.createElementNS(svgns,'rect');
|
|
rect.setAttribute('width',"1em");
|
|
rect.setAttribute('height',"1ex");
|
|
svgcontent.appendChild(rect);
|
|
var bb = rect.getBBox();
|
|
unit_types.em = bb.width;
|
|
unit_types.ex = bb.height;
|
|
svgcontent.removeChild(rect);
|
|
}());
|
|
}
|
|
// Static class for various utility functions
|
|
|
|
var Utils = {
|
|
|
|
// This code was written by Tyler Akins and has been placed in the
|
|
// public domain. It would be nice if you left this header intact.
|
|
// Base64 code from Tyler Akins -- http://rumkin.com
|
|
|
|
// schiller: Removed string concatenation in favour of Array.join() optimization,
|
|
// also precalculate the size of the array needed.
|
|
|
|
"_keyStr" : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
|
|
|
|
"encode64" : function(input) {
|
|
// base64 strings are 4/3 larger than the original string
|
|
// input = Utils.encodeUTF8(input); // convert non-ASCII characters
|
|
input = Utils.convertToXMLReferences(input);
|
|
if(window.btoa) return window.btoa(input); // Use native if available
|
|
var output = new Array( Math.floor( (input.length + 2) / 3 ) * 4 );
|
|
var chr1, chr2, chr3;
|
|
var enc1, enc2, enc3, enc4;
|
|
var i = 0, p = 0;
|
|
|
|
do {
|
|
chr1 = input.charCodeAt(i++);
|
|
chr2 = input.charCodeAt(i++);
|
|
chr3 = input.charCodeAt(i++);
|
|
|
|
enc1 = chr1 >> 2;
|
|
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
|
|
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
|
|
enc4 = chr3 & 63;
|
|
|
|
if (isNaN(chr2)) {
|
|
enc3 = enc4 = 64;
|
|
} else if (isNaN(chr3)) {
|
|
enc4 = 64;
|
|
}
|
|
|
|
output[p++] = this._keyStr.charAt(enc1);
|
|
output[p++] = this._keyStr.charAt(enc2);
|
|
output[p++] = this._keyStr.charAt(enc3);
|
|
output[p++] = this._keyStr.charAt(enc4);
|
|
} while (i < input.length);
|
|
|
|
return output.join('');
|
|
},
|
|
|
|
"decode64" : function(input) {
|
|
if(window.atob) return window.atob(input);
|
|
var output = "";
|
|
var chr1, chr2, chr3 = "";
|
|
var enc1, enc2, enc3, enc4 = "";
|
|
var i = 0;
|
|
|
|
// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
|
|
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
|
|
|
|
do {
|
|
enc1 = this._keyStr.indexOf(input.charAt(i++));
|
|
enc2 = this._keyStr.indexOf(input.charAt(i++));
|
|
enc3 = this._keyStr.indexOf(input.charAt(i++));
|
|
enc4 = this._keyStr.indexOf(input.charAt(i++));
|
|
|
|
chr1 = (enc1 << 2) | (enc2 >> 4);
|
|
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
|
|
chr3 = ((enc3 & 3) << 6) | enc4;
|
|
|
|
output = output + String.fromCharCode(chr1);
|
|
|
|
if (enc3 != 64) {
|
|
output = output + String.fromCharCode(chr2);
|
|
}
|
|
if (enc4 != 64) {
|
|
output = output + String.fromCharCode(chr3);
|
|
}
|
|
|
|
chr1 = chr2 = chr3 = "";
|
|
enc1 = enc2 = enc3 = enc4 = "";
|
|
|
|
} while (i < input.length);
|
|
return unescape(output);
|
|
},
|
|
|
|
// based on http://phpjs.org/functions/utf8_encode:577
|
|
// codedread:does not seem to work with webkit-based browsers on OSX
|
|
"encodeUTF8": function(input) {
|
|
//return unescape(encodeURIComponent(input)); //may or may not work
|
|
var output = '';
|
|
for (var n = 0; n < input.length; n++){
|
|
var c = input.charCodeAt(n);
|
|
if (c < 128) {
|
|
output += input[n];
|
|
}
|
|
else if (c > 127) {
|
|
if (c < 2048){
|
|
output += String.fromCharCode((c >> 6) | 192);
|
|
}
|
|
else {
|
|
output += String.fromCharCode((c >> 12) | 224) + String.fromCharCode((c >> 6) & 63 | 128);
|
|
}
|
|
output += String.fromCharCode((c & 63) | 128);
|
|
}
|
|
}
|
|
return output;
|
|
},
|
|
|
|
"convertToXMLReferences": function(input) {
|
|
var output = '';
|
|
for (var n = 0; n < input.length; n++){
|
|
var c = input.charCodeAt(n);
|
|
if (c < 128) {
|
|
output += input[n];
|
|
}
|
|
else if(c > 127) {
|
|
output += ("&#" + c + ";");
|
|
}
|
|
}
|
|
return output;
|
|
},
|
|
|
|
"rectsIntersect": function(r1, r2) {
|
|
return r2.x < (r1.x+r1.width) &&
|
|
(r2.x+r2.width) > r1.x &&
|
|
r2.y < (r1.y+r1.height) &&
|
|
(r2.y+r2.height) > r1.y;
|
|
},
|
|
|
|
// found this function http://groups.google.com/group/jquery-dev/browse_thread/thread/c6d11387c580a77f
|
|
"text2xml": function(sXML) {
|
|
// NOTE: I'd like to use jQuery for this, but jQuery makes all tags uppercase
|
|
//return $(xml)[0];
|
|
var out;
|
|
try{
|
|
var dXML = ($.browser.msie)?new ActiveXObject("Microsoft.XMLDOM"):new DOMParser();
|
|
dXML.async = false;
|
|
} catch(e){
|
|
throw new Error("XML Parser could not be instantiated");
|
|
};
|
|
try{
|
|
if($.browser.msie) out = (dXML.loadXML(sXML))?dXML:false;
|
|
else out = dXML.parseFromString(sXML, "text/xml");
|
|
}
|
|
catch(e){ throw new Error("Error parsing XML string"); };
|
|
return out;
|
|
}
|
|
|
|
};
|