cleanup added elements in mouseUp
git-svn-id: http://svg-edit.googlecode.com/svn/trunk@17 eee81c28-f429-11dd-99c0-75d572ba1dddmaster
Pavol Rusnak
parent
3f7f4165bf
commit
2255a31427
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@ -45,11 +45,11 @@
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<div>Stroke
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<div id="stroke_color"></div>
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<select id="stroke_width">
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<option selected="selected" value="1px">1px</option>
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<option value="2px">2px</option>
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<option value="3px">3px</option>
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<option value="5px">5px</option>
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<option value="7px">7px</option>
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<option selected="selected" value="1">1</option>
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<option value="2">2</option>
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<option value="3">3</option>
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<option value="5">5</option>
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<option value="7">7</option>
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</select>
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<select id="stroke_style">
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<option selected="selected" value="none">-----</option>
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478
svgcanvas.js
478
svgcanvas.js
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@ -14,16 +14,17 @@ function SvgCanvas(doc)
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var svgdoc = doc;
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var svgroot = svgdoc.documentElement;
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var svgns = "http://www.w3.org/2000/svg";
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var d_attr = "";
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var signature_started = 0;
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var d_attr = null;
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var started = false;
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var obj_num = 1;
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var rect_x = null;
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var rect_y = null;
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var current_draw_element = "path";
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var current_draw_element_fill = "none";
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var current_draw_element_stroke = "black";
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var current_draw_element_stroke_width = "1px";
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var current_draw_element_stroke_style = "0";
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var start_x = null;
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var start_y = null;
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var current_mode = "path";
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var current_fill = "none";
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var current_stroke = "black";
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var current_stroke_width = 1;
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var current_stroke_style = "none";
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var current_opacity = 1;
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var freehand_min_x = null;
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var freehand_max_x = null;
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var freehand_min_y = null;
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@ -37,9 +38,27 @@ function SvgCanvas(doc)
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}
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}
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var createSvgElementFromJson = function(data) {
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// remove unneeded attributes
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// makes resulting SVG smaller
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var cleanupElement = function(element) {
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if (element.getAttribute('fill-opacity') == '1')
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element.removeAttribute('fill-opacity');
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if (element.getAttribute('opacity') == '1')
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element.removeAttribute('opacity');
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if (element.getAttribute('stroke') == 'none')
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element.removeAttribute('stroke');
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if (element.getAttribute('stroke-dasharray') == 'none')
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element.removeAttribute('stroke-dasharray');
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if (element.getAttribute('stroke-opacity') == '1')
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element.removeAttribute('stroke-opacity');
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if (element.getAttribute('stroke-width') == '1')
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element.removeAttribute('stroke-width');
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}
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var addSvgElementFromJson = function(data) {
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var shape = svgdoc.createElementNS(svgns, data.element);
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assignAttributes(shape, data.attr);
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cleanupElement(shape);
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svgdoc.documentElement.appendChild(shape);
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}
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@ -68,12 +87,11 @@ function SvgCanvas(doc)
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indent++;
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for (i=0; i<childs.length; i++)
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{
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if (childs.item(i).nodeType == 1) // element node
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out = out + svgToString(childs.item(i), indent);
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else if (childs.item(i).nodeType == 3) // text node
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{
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for (j=0; j<indent; j++) out += " ";
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out += childs.item(i).nodeValue + "\n";
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if (childs.item(i).nodeType == 1) { // element node
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out = out + svgToString(childs.item(i), indent);
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} else if (childs.item(i).nodeType == 3) { // text node
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for (j=0; j<indent; j++) out += " ";
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out += childs.item(i).nodeValue + "\n";
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}
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}
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indent--;
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@ -92,13 +110,13 @@ function SvgCanvas(doc)
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{
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var x = evt.pageX;
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var y = evt.pageY;
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switch (current_draw_element)
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switch (current_mode)
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{
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case "select":
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signature_started = 1;
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rect_x = x;
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rect_y = y;
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createSvgElementFromJson({
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started = true;
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start_x = x;
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start_y = y;
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addSvgElementFromJson({
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"element": "rect",
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"attr": {
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"x": x,
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@ -108,73 +126,39 @@ function SvgCanvas(doc)
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"id": "rect_" + obj_num,
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"fill": '#DBEBF9',
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"stroke": '#CEE2F7',
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"stroke-width": '1px',
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"stroke-width": 1,
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"fill-opacity": 0.5
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}
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});
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break;
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case "fhellipse":
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d_attr = "M" + x + " " + y + " ";
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signature_started = 1;
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createSvgElementFromJson({
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"element": "path",
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"attr": {
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"d": d_attr,
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"id": "path_" + obj_num,
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"fill": "none",
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"stroke": current_draw_element_stroke,
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"stroke-width": current_draw_element_stroke_width,
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"stroke-dasharray": current_draw_element_stroke_style,
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"stroke-opacity": 0.5
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}
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});
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freehand_min_x = x;
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freehand_max_x = x;
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freehand_min_y = y;
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freehand_max_y = y;
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break;
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case "fhrect":
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case "path":
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started = true;
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d_attr = "M" + x + " " + y + " ";
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signature_started = 1;
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createSvgElementFromJson({
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addSvgElementFromJson({
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"element": "path",
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"attr": {
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"d": d_attr,
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"id": "path_" + obj_num,
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"fill": "none",
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"stroke": current_draw_element_stroke,
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"stroke-width": current_draw_element_stroke_width,
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"stroke-dasharray": current_draw_element_stroke_style,
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"stroke-opacity": 0.5
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"stroke": current_stroke,
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"stroke-width": current_stroke_width,
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"stroke-dasharray": current_stroke_style,
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"opacity": 0.5
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}
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});
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freehand_min_x = x;
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freehand_max_x = x;
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freehand_min_y = y;
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freehand_max_y = y;
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break;
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case "path":
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d_attr = "M" + x + " " + y + " ";
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signature_started = 1;
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createSvgElementFromJson({
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"element": "path",
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"attr": {
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"d": d_attr,
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"id": "path_" + obj_num,
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"fill": "none",
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"stroke": current_draw_element_stroke,
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"stroke-width": current_draw_element_stroke_width,
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"stroke-dasharray": current_draw_element_stroke_style,
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"stroke-opacity": 0.5
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}
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});
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break;
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break;
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case "square":
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case "rect":
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signature_started = 1;
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rect_x = x;
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rect_y = y;
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createSvgElementFromJson({
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started = true;
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start_x = x;
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start_y = y;
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addSvgElementFromJson({
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"element": "rect",
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"attr": {
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"x": x,
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@ -182,18 +166,17 @@ function SvgCanvas(doc)
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"width": "1px",
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"height": "1px",
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"id": "rect_" + obj_num,
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"fill": current_draw_element_fill,
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"stroke": current_draw_element_stroke,
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"stroke-width": current_draw_element_stroke_width,
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"stroke-dasharray": current_draw_element_stroke_style,
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"fill-opacity": 0.5,
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"stroke-opacity": 0.5
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"fill": current_fill,
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"stroke": current_stroke,
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"stroke-width": current_stroke_width,
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"stroke-dasharray": current_stroke_style,
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"opacity": 0.5
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}
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});
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break;
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case "line":
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signature_started = 1;
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createSvgElementFromJson({
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started = true;
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addSvgElementFromJson({
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"element": "line",
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"attr": {
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"x1": x,
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@ -201,17 +184,17 @@ function SvgCanvas(doc)
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"x2": x + 1 + "px",
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"y2": y + 1 + "px",
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"id": "line_" + obj_num,
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"stroke": current_draw_element_stroke,
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"stroke-width": current_draw_element_stroke_width,
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"stroke-dasharray": current_draw_element_stroke_style,
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"stroke-opacity": 0.5
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"stroke": current_stroke,
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"stroke-width": current_stroke_width,
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"stroke-dasharray": current_stroke_style,
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"opacity": 0.5
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}
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});
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break;
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case "circle":
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case "ellipse":
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signature_started = 1;
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createSvgElementFromJson({
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started = true;
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addSvgElementFromJson({
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"element": "ellipse",
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"attr": {
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"cx": x,
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@ -219,18 +202,17 @@ function SvgCanvas(doc)
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"rx": 1 + "px",
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"ry": 1 + "px",
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"id": "ellipse_" + obj_num,
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"fill": current_draw_element_fill,
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"stroke": current_draw_element_stroke,
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"stroke-width": current_draw_element_stroke_width,
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"stroke-dasharray": current_draw_element_stroke_style,
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"fill-opacity": 0.5,
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"stroke-opacity": 0.5
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"fill": current_fill,
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"stroke": current_stroke,
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"stroke-width": current_stroke_width,
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"stroke-dasharray": current_stroke_style,
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"opacity": 0.5
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}
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});
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break;
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case "delete":
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var t = evt.target;
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if(svgroot == evt.target) return;
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if (t == svgroot) return;
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t.parentNode.removeChild(t);
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break;
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}
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@ -238,170 +220,162 @@ function SvgCanvas(doc)
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this.mouseMove = function(evt)
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{
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if (signature_started == 1)
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if (!started) return;
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var x = evt.pageX;
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var y = evt.pageY;
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switch (current_mode)
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{
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var x = evt.pageX;
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var y = evt.pageY;
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switch (current_draw_element)
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{
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case "path":
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d_attr = d_attr + "L" + x + " " + y + " ";
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var shape = svgdoc.getElementById("path_" + obj_num);
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shape.setAttributeNS(null, "d", d_attr);
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break;
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case "line":
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var shape = svgdoc.getElementById("line_" + obj_num);
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shape.setAttributeNS(null, "x2", x);
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shape.setAttributeNS(null, "y2", y);
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break;
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case "square":
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var shape = svgdoc.getElementById("rect_" + obj_num);
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var size = Math.max( Math.abs(x - rect_x), Math.abs(y - rect_y) );
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shape.setAttributeNS(null, "width", size);
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shape.setAttributeNS(null, "height", size);
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if(rect_x < x) {
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shape.setAttributeNS(null, "x", rect_x);
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} else {
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shape.setAttributeNS(null, "x", rect_x - size);
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}
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if(rect_y < y) {
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shape.setAttributeNS(null, "y", rect_y);
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} else {
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shape.setAttributeNS(null, "y", rect_y - size);
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}
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break;
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case "select":
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case "rect":
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var shape = svgdoc.getElementById("rect_" + obj_num);
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if (rect_x < x) {
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shape.setAttributeNS(null, "x", rect_x);
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shape.setAttributeNS(null, "width", x - rect_x);
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} else {
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shape.setAttributeNS(null, "x", x);
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shape.setAttributeNS(null, "width", rect_x - x);
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}
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if (rect_y < y) {
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shape.setAttributeNS(null, "y", rect_y);
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shape.setAttributeNS(null, "height", y - rect_y);
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} else {
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shape.setAttributeNS(null, "y", y);
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shape.setAttributeNS(null, "height", rect_y - y);
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}
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break;
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case "circle":
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var shape = svgdoc.getElementById("ellipse_" + obj_num);
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var cx = shape.getAttributeNS(null, "cx");
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var cy = shape.getAttributeNS(null, "cy");
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var rad = Math.sqrt( (x-cx)*(x-cx) + (y-cy)*(y-cy) );
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shape.setAttributeNS(null, "rx", rad);
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shape.setAttributeNS(null, "ry", rad);
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break;
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case "ellipse":
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var shape = svgdoc.getElementById("ellipse_" + obj_num);
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var cx = shape.getAttributeNS(null, "cx");
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var cy = shape.getAttributeNS(null, "cy");
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shape.setAttributeNS(null, "rx", Math.abs(x - cx) );
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shape.setAttributeNS(null, "ry", Math.abs(y - cy) );
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break;
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case "fhellipse":
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d_attr = d_attr + "L" + x + " " + y + " ";
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var shape = svgdoc.getElementById("path_" + obj_num);
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shape.setAttributeNS(null, "d", d_attr);
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freehand_min_x = Math.min(x, freehand_min_x);
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freehand_max_x = Math.max(x, freehand_max_x);
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freehand_min_y = Math.min(y, freehand_min_y);
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freehand_max_y = Math.max(y, freehand_max_y);
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break;
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case "fhrect":
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d_attr = d_attr + "L" + x + " " + y + " ";
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var shape = svgdoc.getElementById("path_" + obj_num);
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shape.setAttributeNS(null, "d", d_attr);
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freehand_min_x = Math.min(x, freehand_min_x);
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freehand_max_x = Math.max(x, freehand_max_x);
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freehand_min_y = Math.min(y, freehand_min_y);
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freehand_max_y = Math.max(y, freehand_max_y);
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break;
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}
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case "line":
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var shape = svgdoc.getElementById("line_" + obj_num);
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shape.setAttributeNS(null, "x2", x);
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shape.setAttributeNS(null, "y2", y);
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break;
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case "square":
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var shape = svgdoc.getElementById("rect_" + obj_num);
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var size = Math.max( Math.abs(x - start_x), Math.abs(y - start_y) );
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shape.setAttributeNS(null, "width", size);
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shape.setAttributeNS(null, "height", size);
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if(start_x < x) {
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shape.setAttributeNS(null, "x", start_x);
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} else {
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shape.setAttributeNS(null, "x", start_x - size);
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}
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if(start_y < y) {
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shape.setAttributeNS(null, "y", start_y);
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} else {
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shape.setAttributeNS(null, "y", start_y - size);
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}
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break;
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case "select":
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case "rect":
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var shape = svgdoc.getElementById("rect_" + obj_num);
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if (start_x < x) {
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shape.setAttributeNS(null, "x", start_x);
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shape.setAttributeNS(null, "width", x - start_x);
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} else {
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shape.setAttributeNS(null, "x", x);
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shape.setAttributeNS(null, "width", start_x - x);
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}
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if (start_y < y) {
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shape.setAttributeNS(null, "y", start_y);
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shape.setAttributeNS(null, "height", y - start_y);
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} else {
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shape.setAttributeNS(null, "y", y);
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shape.setAttributeNS(null, "height", start_y - y);
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}
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break;
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case "circle":
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var shape = svgdoc.getElementById("ellipse_" + obj_num);
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var cx = shape.getAttributeNS(null, "cx");
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var cy = shape.getAttributeNS(null, "cy");
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var rad = Math.sqrt( (x-cx)*(x-cx) + (y-cy)*(y-cy) );
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shape.setAttributeNS(null, "rx", rad);
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shape.setAttributeNS(null, "ry", rad);
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break;
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case "ellipse":
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var shape = svgdoc.getElementById("ellipse_" + obj_num);
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var cx = shape.getAttributeNS(null, "cx");
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var cy = shape.getAttributeNS(null, "cy");
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shape.setAttributeNS(null, "rx", Math.abs(x - cx) );
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shape.setAttributeNS(null, "ry", Math.abs(y - cy) );
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break;
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case "fhellipse":
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case "fhrect":
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freehand_min_x = Math.min(x, freehand_min_x);
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freehand_max_x = Math.max(x, freehand_max_x);
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freehand_min_y = Math.min(y, freehand_min_y);
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freehand_max_y = Math.max(y, freehand_max_y);
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// break missing on purpose
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case "path":
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d_attr += "L" + x + " " + y + " ";
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var shape = svgdoc.getElementById("path_" + obj_num);
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shape.setAttributeNS(null, "d", d_attr);
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break;
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}
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}
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this.mouseUp = function(evt)
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{
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if (signature_started == 1)
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if (!started) return;
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started = false;
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var element = null;
|
||||
switch (current_mode)
|
||||
{
|
||||
signature_started = 0;
|
||||
switch (current_draw_element)
|
||||
{
|
||||
case "select":
|
||||
var element = svgdoc.getElementById("rect_" + obj_num);
|
||||
element.parentNode.removeChild(element);
|
||||
break;
|
||||
case "path":
|
||||
d_attr = 0;
|
||||
var element = svgdoc.getElementById("path_" + obj_num);
|
||||
element.setAttribute("stroke-opacity", 1.0);
|
||||
obj_num++;
|
||||
break;
|
||||
case "line":
|
||||
var element = svgdoc.getElementById("line_" + obj_num);
|
||||
element.setAttribute("stroke-opacity", 1.0);
|
||||
obj_num++;
|
||||
break;
|
||||
case "square":
|
||||
case "rect":
|
||||
var element = svgdoc.getElementById("rect_" + obj_num);
|
||||
element.setAttribute("fill-opacity", 1.0);
|
||||
element.setAttribute("stroke-opacity", 1.0);
|
||||
obj_num++;
|
||||
break;
|
||||
case "circle":
|
||||
case "ellipse":
|
||||
var element = svgdoc.getElementById("ellipse_" + obj_num);
|
||||
element.setAttribute("fill-opacity", 1.0);
|
||||
element.setAttribute("stroke-opacity", 1.0);
|
||||
obj_num++;
|
||||
break;
|
||||
case "fhellipse":
|
||||
d_attr = 0;
|
||||
var element = svgdoc.getElementById("path_" + obj_num);
|
||||
element.parentNode.removeChild(element);
|
||||
createSvgElementFromJson({
|
||||
"element": "ellipse",
|
||||
"attr": {
|
||||
"cx": (freehand_min_x + freehand_max_x) / 2,
|
||||
"cy": (freehand_min_y + freehand_max_y) / 2,
|
||||
"rx": (freehand_max_x - freehand_min_x) / 2 + "px",
|
||||
"ry": (freehand_max_y - freehand_min_y) / 2 + "px",
|
||||
"id": "ellipse_" + obj_num,
|
||||
"fill": current_draw_element_fill,
|
||||
"stroke": current_draw_element_stroke,
|
||||
"stroke-width": current_draw_element_stroke_width,
|
||||
"stroke-dasharray": current_draw_element_stroke_style
|
||||
}
|
||||
});
|
||||
obj_num++;
|
||||
break;
|
||||
case "fhrect":
|
||||
d_attr = 0;
|
||||
var element = svgdoc.getElementById("path_" + obj_num);
|
||||
element.parentNode.removeChild(element);
|
||||
createSvgElementFromJson({
|
||||
"element": "rect",
|
||||
"attr": {
|
||||
"x": freehand_min_x,
|
||||
"y": freehand_min_y,
|
||||
"width": (freehand_max_x - freehand_min_x) + "px",
|
||||
"height": (freehand_max_y - freehand_min_y) + "px",
|
||||
"id": "rect_" + obj_num,
|
||||
"fill": current_draw_element_fill,
|
||||
"stroke": current_draw_element_stroke,
|
||||
"stroke-width": current_draw_element_stroke_width,
|
||||
"stroke-dasharray": current_draw_element_stroke_style
|
||||
}
|
||||
});
|
||||
obj_num++;
|
||||
break;
|
||||
}
|
||||
case "select":
|
||||
element = svgdoc.getElementById("rect_" + obj_num);
|
||||
element.parentNode.removeChild(element);
|
||||
element = null;
|
||||
break;
|
||||
case "path":
|
||||
d_attr = null;
|
||||
element = svgdoc.getElementById("path_" + obj_num);
|
||||
element.setAttribute("opacity", current_opacity);
|
||||
obj_num++;
|
||||
break;
|
||||
case "line":
|
||||
element = svgdoc.getElementById("line_" + obj_num);
|
||||
element.setAttribute("opacity", current_opacity);
|
||||
obj_num++;
|
||||
break;
|
||||
case "square":
|
||||
case "rect":
|
||||
element = svgdoc.getElementById("rect_" + obj_num);
|
||||
element.setAttribute("opacity", current_opacity);
|
||||
obj_num++;
|
||||
break;
|
||||
case "circle":
|
||||
case "ellipse":
|
||||
element = svgdoc.getElementById("ellipse_" + obj_num);
|
||||
element.setAttribute("opacity", current_opacity);
|
||||
obj_num++;
|
||||
break;
|
||||
case "fhellipse":
|
||||
d_attr = null;
|
||||
element = svgdoc.getElementById("path_" + obj_num);
|
||||
element.parentNode.removeChild(element);
|
||||
addSvgElementFromJson({
|
||||
"element": "ellipse",
|
||||
"attr": {
|
||||
"cx": (freehand_min_x + freehand_max_x) / 2,
|
||||
"cy": (freehand_min_y + freehand_max_y) / 2,
|
||||
"rx": (freehand_max_x - freehand_min_x) / 2 + "px",
|
||||
"ry": (freehand_max_y - freehand_min_y) / 2 + "px",
|
||||
"id": "ellipse_" + obj_num,
|
||||
"fill": current_fill,
|
||||
"stroke": current_stroke,
|
||||
"stroke-width": current_stroke_width,
|
||||
"stroke-dasharray": current_stroke_style,
|
||||
"opacity": current_opacity
|
||||
}
|
||||
});
|
||||
obj_num++;
|
||||
break;
|
||||
case "fhrect":
|
||||
d_attr = null;
|
||||
element = svgdoc.getElementById("path_" + obj_num);
|
||||
element.parentNode.removeChild(element);
|
||||
addSvgElementFromJson({
|
||||
"element": "rect",
|
||||
"attr": {
|
||||
"x": freehand_min_x,
|
||||
"y": freehand_min_y,
|
||||
"width": (freehand_max_x - freehand_min_x) + "px",
|
||||
"height": (freehand_max_y - freehand_min_y) + "px",
|
||||
"id": "rect_" + obj_num,
|
||||
"fill": current_fill,
|
||||
"stroke": current_stroke,
|
||||
"stroke-width": current_stroke_width,
|
||||
"stroke-dasharray": current_stroke_style,
|
||||
"opacity": current_opacity
|
||||
}
|
||||
});
|
||||
obj_num++;
|
||||
break;
|
||||
}
|
||||
if (element != null) {
|
||||
cleanupElement(element);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -419,7 +393,7 @@ function SvgCanvas(doc)
|
|||
var len = svgroot.childNodes.length;
|
||||
var i = 0;
|
||||
for(var rep = 0; rep < len; rep++){
|
||||
if (nodes[i].nodeType == 1) { // element
|
||||
if (nodes[i].nodeType == 1) { // element node
|
||||
nodes[i].parentNode.removeChild(nodes[i]);
|
||||
} else {
|
||||
i++;
|
||||
|
|
@ -428,23 +402,23 @@ function SvgCanvas(doc)
|
|||
}
|
||||
|
||||
this.setMode = function(name) {
|
||||
current_draw_element = name;
|
||||
current_mode = name;
|
||||
}
|
||||
|
||||
this.setStrokeColor = function(color) {
|
||||
current_draw_element_stroke = color;
|
||||
current_stroke = color;
|
||||
}
|
||||
|
||||
this.setFillColor = function(color) {
|
||||
current_draw_element_fill = color;
|
||||
current_fill = color;
|
||||
}
|
||||
|
||||
this.setStrokeWidth = function(val) {
|
||||
current_draw_element_stroke_width = val;
|
||||
current_stroke_width = val;
|
||||
}
|
||||
|
||||
this.setStrokeStyle = function(val) {
|
||||
current_draw_element_stroke_style = val;
|
||||
current_stroke_style = val;
|
||||
}
|
||||
|
||||
this.setup = function(evt) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue