[bugfix]修复多个css文件进行合并时, 如果有一个文件A的所有图片都在另外的B文件中包含着, 导致 A文件的css没有进行合并和替…

…换精灵图的bug

Signed-off-by: iazrael <azrael@imatlas.com>

package.json

@@ -2,7 +2,7 @@
   "author": "azrael <azrael@imatlas.com> (http://imatlas.com/about)",
   "name": "ispriter",
   "description": "an intelligent merge sprite tool",
-  "version": "0.3.8",
+  "version": "0.3.9",
   "homepage": "http://imatlas.com/posts/ispriter-update/",
   "repository": {
     "type": "git",

src/ispriter.js

@@ -990,6 +990,10 @@ function drawImageAndPositionBackground(spriteTask, callback){
         });
     }
 
+    var ep = new EventProxy();
+
+    ep.after('drawSpriteImage', spriteArray.length, callback);
+
     spriteArray.forEach(function(styleObjArr, i){
         var png, 
             imageName,
@@ -1036,8 +1040,10 @@ function drawImageAndPositionBackground(spriteTask, callback){
                     .on('finish', function(){
 
                 info('>>Output image:', imageName2);
-                callback && callback(null);
+                ep.emit('drawSpriteImage');
             });
+        }else {
+            ep.emit('drawSpriteImage');
         }
     });