Roo/dialog/UploadCropbox.js

diff --git a/Roo/dialog/UploadCropbox.js b/Roo/dialog/UploadCropbox.js
index 741766c..82bf63e 100644 (file)
--- a/Roo/dialog/UploadCropbox.js
+++ b/Roo/dialog/UploadCropbox.js
@@ -935,7 +935,7 @@ Roo.extend(Roo.dialog.UploadCropbox, Roo.Component,  {
                 sy = sy < 0 ? 0 : (sy / this.getScaleLevel());
 
                 if(canvas.width > 1200) {
-                    canvas.height = 1200 * canvas.height / canvas.width;
+                    canvas.height = 1200 * this.thumbEl.getHeight() / this.thumbEl.getWidth();
                     canvas.width = 1200;
                 }