Fixed a bug of cc.LabelTTF that its enableShadow doesn't work.

Author: dingpinglv

cocos2d/core/labelttf/CCLabelTTFCanvasRenderCmd.js

@@ -413,7 +413,7 @@ cc.LabelTTF._firsrEnglish = /^[a-zA-Z0-9ÄÖÜäöüßéèçàùêâîôû]/;
             locShadowColor = node._shadowColor || this._displayedColor;
         var locStrokeColor = node._strokeColor, locFontFillColor = node._textFillColor;
 
-        this._shadowColorStr = "rgba(" + (0 | (locShadowColor.r * 0.5)) + "," + (0 | (locShadowColor.g * 0.5)) + "," + (0 | (locShadowColor.b * 0.5)) + "," + node._shadowOpacity + ")";
+        this._shadowColorStr = "rgba(" + (0 | (locShadowColor.r)) + "," + (0 | (locShadowColor.g)) + "," + (0 | (locShadowColor.b)) + "," + node._shadowOpacity + ")";
         this._fillColorStr = "rgba(" + (0 | (locDisplayColor.r / 255 * locFontFillColor.r)) + "," + (0 | (locDisplayColor.g / 255 * locFontFillColor.g)) + ","
             + (0 | (locDisplayColor.b / 255 * locFontFillColor.b)) + ", 1)";  //use globalOpacity  + locDisplayedOpacity / 255 + ")";
         this._strokeColorStr = "rgba(" + (0 | (locDisplayColor.r / 255 * locStrokeColor.r)) + "," + (0 | (locDisplayColor.g / 255 * locStrokeColor.g)) + ","

cocos2d/core/labelttf/CCLabelTTFWebGLRenderCmd.js

@@ -37,8 +37,9 @@
     proto._setColorsString = function () {
         this.setDirtyFlag(cc.Node._dirtyFlags.textDirty);
         var node = this._node;
-        var locStrokeColor = node._strokeColor, locFontFillColor = node._textFillColor;
-        this._shadowColorStr = "rgba(128,128,128," + node._shadowOpacity + ")";
+        var locStrokeColor = node._strokeColor, locFontFillColor = node._textFillColor,
+            locShadowColor = node._shadowColor || this._displayedColor;
+        this._shadowColorStr = "rgba(" + (0 | locShadowColor.r) + "," + (0 | locShadowColor.g) + "," + (0 | locShadowColor.b) + "," + node._shadowOpacity + ")";
         this._fillColorStr = "rgba(" + (0 | locFontFillColor.r) + "," + (0 | locFontFillColor.g) + "," + (0 | locFontFillColor.b) + ", 1)";
         this._strokeColorStr = "rgba(" + (0 | locStrokeColor.r) + "," + (0 | locStrokeColor.g) + "," + (0 | locStrokeColor.b) + ", 1)";
     };