Monday, January 14th, 2013, at 10:45 A.M:

1. It is decided to not having an XRGUIElementView or XRGUIElementViewController. NSImageView is the best choice
2. Add a mouseDown callback to XRCanvasView
Monday, January 14th, 2013, at 11:38 A.M:

1. Add XRGenericView to the project. The view needs calculating the center of itself so that the textField can be at the center.