Adding class VectorFrameHandler and sub-class VectorFrame, moving top_windows from ImagePathDesignController into self.top_windows. Adding declaration of VectorFrameHandler and VectorFrame. Code work, Actual WindowsFrame load correctly and code work. Its a save point before adding the VectorFrame, recently had bug with wxglade-gui and python application doing a ld-error like even called from python2.7 manually. After a restart it work back, also added the wx-glade of VectorFrame