fixed_convert_and_kbframe.py 文件源码

def convert_point(self,point=(0,0),from_view=None,to_view=None):
        '''fixed convert point for fullscreen application.
        works for any present type
        existing function in fullscreen reports relative to portrait
        TODO: does not work if from_view or to_view has been Transformed'''

        (w,h)=ui.get_screen_size()

        #detect what convert_point things rotation is.

        origin=ui.convert_point((0,0),from_view,to_view )
        xaxis=ui.convert_point((1,0),from_view,to_view )
        xaxis=[xaxis[j]-origin[j] for j in (0,1)]

        yaxis=ui.convert_point((0,1),from_view,to_view )
        yaxis=[yaxis[j]-origin[j] for j in (0,1)]
        pt_c=ui.convert_point(tuple(point),from_view,to_view)
        pt=[0,0]

        if from_view is not None:
            pt[0]=( (xaxis[0]==-1)*h
                  + xaxis[0]*pt_c[0]
                  + (yaxis[0]==1)*w
                  - yaxis[0]*pt_c[1])

            pt[1] = ( (xaxis[1]==1)*h
                    - xaxis[1]*pt_c[0]
                    + (yaxis[1]==-1)*w
                    + yaxis[1]*pt_c[1])
        else:  #just get corrected origin, and subtract out
            origin_offset=self.convert_point((0,0),to_view,from_view)
            pt[0]=  point[0]  - origin_offset[0]
            pt[1]=  point[1]  - origin_offset[1]

        return tuple(pt)