copied 2 pull requests from grosbouddha

js/frameSheetModel.js

@@ -0,0 +1,76 @@
+
+var FrameSheetModel = (function() {
+    
+    var inst;
+    var frames = [];
+    var width;
+    var height;
+
+    var createEmptyFrame_ = function() {
+    	var emptyFrame = new Array(width);
+		for (var columnIndex=0; columnIndex < width; columnIndex++) {
+			emptyFrame[columnIndex] = new Array(height);
+    	}
+        return emptyFrame;
+    };
+
+	return {
+		validate: function() {
+			return true; // I'm always right dude
+		},
+
+		// Could be use to pass around model using long GET param (good enough for simple models) and 
+		// do some temporary locastorage
+		serialize: function() {
+			throw "FrameSheet.serialize Not implemented"
+		},
+		
+		addEmptyFrame: function() {
+			frames.push(createEmptyFrame_());
+		},
+
+		getFrameCount: function() {
+			return frames.length;
+		},
+
+		getFrameByIndex: function(index) {
+			if (isNaN(index)) {
+				throw "Bad argument value for getFrameByIndex method: <" + index + ">"
+			} else if (index < 0 || index > frames.length) {
+				throw "Out of bound index for frameSheet object."
+			}
+
+			return frames[index];
+		},
+
+		removeFrameByIndex: function(index) {
+		  if(index < 0 || index > inst.getFrameCount()) {
+		  	throw "Bad index value for removeFrameByIndex.";
+		  }
+		  frames.splice(index, 1);
+		},
+
+		duplicateFrameByIndex: function(frameToDuplicateIndex) {
+			var frame = inst.getFrameByIndex(frameToDuplicateIndex);
+			var clonedFrame = [];
+			for(var i=0, l=frame.length; i<l; i++) {
+				clonedFrame.push(frame[i].slice(0));
+			}
+			frames.splice(frameToDuplicateIndex + 1, 0, clonedFrame);
+		},
+        
+		getInstance: function(width_, height_) {
+			
+			if (isNaN(width_) || isNaN(height_)) {
+				throw "Bad FrameSheetModel initialization in getInstance method.";
+			}
+
+			inst = this;
+
+			width = width_;
+			height = height_;
+
+			return inst;
+		}
+	}
+})();