mouse wheel for zoom tool

1 files changed, 5 insertions, 13 deletions

diff --git a/js/tools/ZoomTool.js b/js/tools/ZoomTool.js
index cabf3a3d..913dc02a 100644
--- a/js/tools/ZoomTool.js
+++ b/js/tools/ZoomTool.js
@@ -74,10 +74,12 @@ exports.ZoomTool = Montage.create(DrawingTool, {
            if(wasSelected) {
                 this.AddCustomFeedback();
                 this.eventManager.addEventListener( "toolDoubleClick", this, false);
+                                this.application.ninja.stage.drawingCanvas.addEventListener("mousewheel", this, false);
 
            } else {
                 this.RemoveCustomFeedback();
                 this.eventManager.removeEventListener( "toolDoubleClick", this, false);
+                                this.application.ninja.stage.drawingCanvas.removeEventListener("mousewheel", this, false);
            }
         }
     },
@@ -270,19 +272,9 @@ exports.ZoomTool = Montage.create(DrawingTool, {
                         }
                         else if (this._mode === "mouseWheelZoom")
                         {
-                                if (userContent)
-                                {
-                                        var w = userContent.offsetWidth,
-                                                h = userContent.offsetHeight;
-                                        if(userContent.width)
-                                                w = userContent.width;
-                                        if(userContent.height)
-                                                h = userContent.height;
-                                        var localPt = [ w/2,  h/2, 0];
-                                        globalPt = viewUtils.localToGlobal( localPt, userContent );
-                                }
-                                else
-                                        globalPt = [0,0,0];
+                var w = this.application.ninja.stage._canvas.width,
+                    h = this.application.ninja.stage._canvas.height;
+                                globalPt = [w/2, h/2, 0];
                         }
                         else
                         {