Roo/dialog/UploadCropbox.js

diff --git a/Roo/dialog/UploadCropbox.js b/Roo/dialog/UploadCropbox.js
index a2b030f..dec6138 100644 (file)
--- a/Roo/dialog/UploadCropbox.js
+++ b/Roo/dialog/UploadCropbox.js
@@ -493,8 +493,11 @@ Roo.extend(Roo.dialog.UploadCropbox, Roo.Component,  {
             var old_canvas_width = Math.floor(this.imageEl.OriginWidth * old_scale_level);
             var old_canvas_height = Math.floor(this.imageEl.OriginHeight * old_scale_level);
 
-            var left_diff = Math.ceil((this.canvasEl.width - old_canvas_width) / 2);
-            var top_diff = Math.ceil((this.canvasEl.height - old_canvas_height) / 2);
+            var left_diff = (this.canvasEl.width - old_canvas_width) / 2;
+            var top_diff = (this.canvasEl.height - old_canvas_height) / 2;
+
+            left_diff = (left_diff >= 0) ? Math.ceil(left_diff) : Math.floor(left_diff);
+            top_diff = (top_diff >= 0) ? Math.ceil(top_diff) : Math.floor(top_diff);
 
             var new_left = old_left - left_diff;
             var new_top = old_top - top_diff;