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Code Issues Actions 2 Packages Projects Releases Wiki Activity

improved shadow code quality and added support for text fill and stroke shadows

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This commit is contained in:
Eric Rowell
2012-05-20 10:47:28 -07:00
parent 97ddb507ea
commit 4ba2818f97
5 changed files with 233 additions and 168 deletions
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66
src/Shape.js
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@@ -25,8 +25,9 @@ Kinetic.Shape = function(config) {
lineJoin: undefined,
detectionType: 'path',
shadow: {
blur: 5,
alpha: 1
blur: 10,
alpha: 1,
offset: [0, 0]
}
});
@@ -81,31 +82,12 @@ Kinetic.Shape.prototype = {
*/
applyStyles: function() {
var context = this.getContext();
var aa = this.getAbsoluteAlpha();
/*
* if fill is defined, apply shadow to
* fill only and not the stroke
*/
if(!!this.attrs.fill) {
var sa = this.attrs.shadow.alpha;
context.save();
if(sa === 1) {
this.applyShadow();
this.fill();
}
else {
context.save();
context.globalAlpha = sa * aa;
this.applyShadow();
this.fill();
context.restore();
this.fill();
}
context.restore();
this.applyShadow(this.fill);
this.stroke();
}
/*
@@ -113,18 +95,7 @@ Kinetic.Shape.prototype = {
* to the stroke
*/
else {
if(sa === 1) {
this.applyShadow();
this.stroke();
}
else {
context.save();
context.globalAlpha = sa * aa;
this.applyShadow();
this.stroke();
context.restore();
this.stroke();
}
this.applyShadow(this.stroke);
}
},
/**
@@ -196,8 +167,33 @@ Kinetic.Shape.prototype = {
/**
* apply shadow based on shadow color, blur,
* and offset properties
* @param {Function} draw function. Will typically be this.fill(), this.stroke(),
* this.fillText(), or this.strokeText()
*/
applyShadow: function() {
applyShadow: function(drawFunc) {
var context = this.getContext();
var s = this.attrs.shadow;
var aa = this.getAbsoluteAlpha();
var sa = this.attrs.shadow.alpha;
context.save();
if(sa === 1) {
this._applyShadow();
drawFunc.call(this);
}
else {
context.save();
context.globalAlpha = sa * aa;
this._applyShadow();
drawFunc.call(this);
context.restore();
drawFunc.call(this);
}
context.restore();
},
_applyShadow: function() {
var context = this.getContext();
var s = this.attrs.shadow;