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CompoundPath: move getCurrentPath into the outer scope and implement smooth and simplify.

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This commit is contained in:
Jonathan Puckey 2011-02-17 14:33:25 +01:00
parent 0c1f29ce29
commit 1953c17f41
1 changed files with 37 additions and 13 deletions
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50
src/path/CompoundPath.js
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@ -1,4 +1,13 @@
new function() {
function getCurrentPath(compoundPath) {
if (compoundPath.children.length) {
return compoundPath.children[compoundPath.children.length - 1];
} else {
throw Error('Use a moveTo() command first');
}
}
CompoundPath = PathItem.extend({
initialize: function(items) {
this.base();
@ -15,7 +24,7 @@ new function() {
var firstChild = this.children[0];
// if (!child.visible) return;
ctx.beginPath();
for(var i = 0, l = this.children.length; i < l; i++) {
for (var i = 0, l = this.children.length; i < l; i++) {
var child = this.children[i];
child.draw(ctx, true);
}
@ -24,7 +33,30 @@ new function() {
if (firstChild.strokeColor) ctx.stroke();
}
},
/**
* If this is a compound path with only one path inside,
* the path is moved outside and the compound path is erased.
* Otherwise, the compound path is returned unmodified.
*
* @return the simplified compound path.
*/
simplify: function() {
if(this.children.length == 1) {
var child = this.children[0];
child.moveAbove(this);
this.remove();
return child;
}
return this;
},
smooth: function() {
for(var i = 0, l = this.children.length; i < l; i++) {
this.children[i].smooth();
}
},
moveTo: function() {
var path = new Path();
this.appendTop(path);
@ -32,22 +64,14 @@ new function() {
},
moveBy: function() {
if(!arguments.length) {
if (!arguments.length) {
this.moveTo(0, 0);
} else {
var point = Point.read(arguments);
var curPath = this._getCurrentPath();
var curPath = this.getCurrentPath(this);
var current = curPath.segments[curPath.segments.length - 1].point;
this.moveTo(current.add(point));
}
},
_getCurrentPath: function() {
if(this.children.length) {
return this.children[this.children.length - 1];
} else {
throw Error('Use a moveTo() command first');
}
}
});
@ -57,7 +81,7 @@ new function() {
function addProp(key) {
props[key] = function() {
var curPath = this._getCurrentPath();
var curPath = getCurrentPath(this);
curPath[key].apply(curPath, arguments);
};
}