317 lines
9.0 KiB
JavaScript
317 lines
9.0 KiB
JavaScript
/* eslint-disable no-var */
|
|
/* globals $, svgroot */
|
|
/**
|
|
* Coords.
|
|
*
|
|
* Licensed under the MIT License
|
|
*
|
|
*/
|
|
|
|
// Dependencies:
|
|
// 1) jquery.js
|
|
// 2) math.js
|
|
// 3) pathseg.js
|
|
// 4) browser.js
|
|
// 5) svgutils.js
|
|
// 6) units.js
|
|
// 7) svgtransformlist.js
|
|
|
|
var svgedit = svgedit || {}; // eslint-disable-line no-use-before-define
|
|
|
|
(function () {
|
|
'use strict';
|
|
|
|
if (!svgedit.coords) {
|
|
svgedit.coords = {};
|
|
}
|
|
|
|
// 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'];
|
|
|
|
/**
|
|
* @typedef editorContext
|
|
* @type {?object}
|
|
* @property {function} getGridSnapping
|
|
* @property {function} getDrawing
|
|
*/
|
|
var editorContext_ = null;
|
|
|
|
/**
|
|
* @param {editorContext} editorContext
|
|
*/
|
|
svgedit.coords.init = function (editorContext) {
|
|
editorContext_ = editorContext;
|
|
};
|
|
|
|
/**
|
|
* Applies coordinate changes to an element based on the given matrix
|
|
* @param {Element} selected - DOM element to be changed
|
|
* @param {object} changes - Object with changes to be remapped
|
|
* @param {SVGMatrix} m - Matrix object to use for remapping coordinates
|
|
*/
|
|
svgedit.coords.remapElement = function (selected, changes, m) {
|
|
var i, type,
|
|
remap = function (x, y) { return svgedit.math.transformPoint(x, y, m); },
|
|
scalew = function (w) { return m.a * w; },
|
|
scaleh = function (h) { return m.d * h; },
|
|
doSnapping = editorContext_.getGridSnapping() && selected.parentNode.parentNode.localName === 'svg',
|
|
finishUp = function () {
|
|
var o;
|
|
if (doSnapping) {
|
|
for (o in changes) {
|
|
changes[o] = svgedit.utilities.snapToGrid(changes[o]);
|
|
}
|
|
}
|
|
svgedit.utilities.assignAttributes(selected, changes, 1000, true);
|
|
},
|
|
box = svgedit.utilities.getBBox(selected);
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
type = i === 0 ? 'fill' : 'stroke';
|
|
var attrVal = selected.getAttribute(type);
|
|
if (attrVal && attrVal.indexOf('url(') === 0) {
|
|
if (m.a < 0 || m.d < 0) {
|
|
var grad = svgedit.utilities.getRefElem(attrVal);
|
|
var newgrad = grad.cloneNode(true);
|
|
if (m.a < 0) {
|
|
// flip x
|
|
var x1 = newgrad.getAttribute('x1');
|
|
var x2 = newgrad.getAttribute('x2');
|
|
newgrad.setAttribute('x1', -(x1 - 1));
|
|
newgrad.setAttribute('x2', -(x2 - 1));
|
|
}
|
|
|
|
if (m.d < 0) {
|
|
// flip y
|
|
var y1 = newgrad.getAttribute('y1');
|
|
var y2 = newgrad.getAttribute('y2');
|
|
newgrad.setAttribute('y1', -(y1 - 1));
|
|
newgrad.setAttribute('y2', -(y2 - 1));
|
|
}
|
|
newgrad.id = editorContext_.getDrawing().getNextId();
|
|
svgedit.utilities.findDefs().appendChild(newgrad);
|
|
selected.setAttribute(type, 'url(#' + newgrad.id + ')');
|
|
}
|
|
|
|
// Not really working :(
|
|
// if (selected.tagName === 'path') {
|
|
// reorientGrads(selected, m);
|
|
// }
|
|
}
|
|
}
|
|
|
|
var elName = selected.tagName;
|
|
var chlist, mt;
|
|
if (elName === 'g' || elName === 'text' || elName === 'tspan' || elName === 'use') {
|
|
// 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 = svgedit.math.transformListToTransform(selected).matrix,
|
|
tNew = svgedit.math.matrixMultiply(existing.inverse(), m, existing);
|
|
changes.x = parseFloat(changes.x) + tNew.e;
|
|
changes.y = parseFloat(changes.y) + tNew.f;
|
|
} else {
|
|
// we just absorb all matrices into the element and don't do any remapping
|
|
chlist = svgedit.transformlist.getTransformList(selected);
|
|
mt = svgroot.createSVGTransform();
|
|
mt.setMatrix(svgedit.math.matrixMultiply(svgedit.math.transformListToTransform(chlist).matrix, m));
|
|
chlist.clear();
|
|
chlist.appendItem(mt);
|
|
}
|
|
}
|
|
var c, pt, pt1, pt2, len;
|
|
// now we have a set of changes and an applied reduced transform list
|
|
// we apply the changes directly to the DOM
|
|
switch (elName) {
|
|
case 'foreignObject':
|
|
case 'rect':
|
|
case 'image':
|
|
// Allow images to be inverted (give them matrix when flipped)
|
|
if (elName === 'image' && (m.a < 0 || m.d < 0)) {
|
|
// Convert to matrix
|
|
chlist = svgedit.transformlist.getTransformList(selected);
|
|
mt = svgroot.createSVGTransform();
|
|
mt.setMatrix(svgedit.math.matrixMultiply(svgedit.math.transformListToTransform(chlist).matrix, m));
|
|
chlist.clear();
|
|
chlist.appendItem(mt);
|
|
} else {
|
|
pt1 = remap(changes.x, changes.y);
|
|
changes.width = scalew(changes.width);
|
|
changes.height = scaleh(changes.height);
|
|
changes.x = pt1.x + Math.min(0, changes.width);
|
|
changes.y = pt1.y + Math.min(0, changes.height);
|
|
changes.width = Math.abs(changes.width);
|
|
changes.height = Math.abs(changes.height);
|
|
}
|
|
finishUp();
|
|
break;
|
|
case 'ellipse':
|
|
c = remap(changes.cx, changes.cy);
|
|
changes.cx = c.x;
|
|
changes.cy = c.y;
|
|
changes.rx = scalew(changes.rx);
|
|
changes.ry = scaleh(changes.ry);
|
|
changes.rx = Math.abs(changes.rx);
|
|
changes.ry = Math.abs(changes.ry);
|
|
finishUp();
|
|
break;
|
|
case 'circle':
|
|
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 = svgedit.math.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);
|
|
|
|
if (changes.r) { changes.r = Math.abs(changes.r); }
|
|
finishUp();
|
|
break;
|
|
case 'line':
|
|
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;
|
|
// deliberately fall through here
|
|
case 'text':
|
|
case 'tspan':
|
|
case 'use':
|
|
finishUp();
|
|
break;
|
|
case 'g':
|
|
var gsvg = $(selected).data('gsvg');
|
|
if (gsvg) {
|
|
svgedit.utilities.assignAttributes(gsvg, changes, 1000, true);
|
|
}
|
|
break;
|
|
case 'polyline':
|
|
case 'polygon':
|
|
len = changes.points.length;
|
|
for (i = 0; i < len; ++i) {
|
|
pt = changes.points[i];
|
|
pt = remap(pt.x, pt.y);
|
|
changes.points[i].x = pt.x;
|
|
changes.points[i].y = pt.y;
|
|
}
|
|
|
|
len = changes.points.length;
|
|
var pstr = '';
|
|
for (i = 0; i < len; ++i) {
|
|
pt = changes.points[i];
|
|
pstr += pt.x + ',' + pt.y + ' ';
|
|
}
|
|
selected.setAttribute('points', pstr);
|
|
break;
|
|
case 'path':
|
|
var seg;
|
|
var segList = selected.pathSegList;
|
|
len = segList.numberOfItems;
|
|
changes.d = [];
|
|
for (i = 0; i < len; ++i) {
|
|
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
|
|
};
|
|
}
|
|
|
|
len = changes.d.length;
|
|
var firstseg = changes.d[0],
|
|
currentpt = remap(firstseg.x, firstseg.y);
|
|
changes.d[0].x = currentpt.x;
|
|
changes.d[0].y = currentpt.y;
|
|
for (i = 1; i < len; ++i) {
|
|
seg = changes.d[i];
|
|
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);
|
|
}
|
|
} // for each segment
|
|
|
|
var dstr = '';
|
|
len = changes.d.length;
|
|
for (i = 0; i < len; ++i) {
|
|
seg = changes.d[i];
|
|
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.x1 + ',' + seg.y1 + ' ' + seg.x + ',' + seg.y + ' ';
|
|
break;
|
|
case 11: // relative elliptical arc (a)
|
|
case 10: // absolute elliptical arc (A)
|
|
dstr += seg.r1 + ',' + seg.r2 + ' ' + seg.angle + ' ' + (+seg.largeArcFlag) +
|
|
' ' + (+seg.sweepFlag) + ' ' + seg.x + ',' + seg.y + ' ';
|
|
break;
|
|
case 17: // relative smooth cubic (s)
|
|
case 16: // absolute smooth cubic (S)
|
|
dstr += seg.x2 + ',' + seg.y2 + ' ' + seg.x + ',' + seg.y + ' ';
|
|
break;
|
|
}
|
|
}
|
|
|
|
selected.setAttribute('d', dstr);
|
|
break;
|
|
}
|
|
};
|
|
}());
|