[wxPython-users] Re: calc nr of visible characters in wx.TextCtrl

[Dmitriy Baranov]

stefaan пишет:
       def calcNrOfVisibleCharacters(self):
           # get widget's size
           cs = float(self.textcontrol1.GetClientSize()[0])
           #    ^^
           # get size of characters and inter character spacing
           te = float(self.textcontrol1.GetFullTextExtent('X'))  # 
returns (width,height,descent,leading)
           #    ^^
           return max(cs/(te[0]+te[3])-3.0, 3.0) # minus 3 is found by 
trial and error