wxPython之wx.DC绘制形状

#-*-coding: UTF-8 -*-#------------------------------------------------------#Purpose: nothing....#Author: 阿Bin先生#Created: 2017年5月21日#------------------------------------------------------import wxclass Smiley(wx.PyControl):  def __init__(self, parent, size=(100, 100)):    super(Smiley, self).__init__(parent,    size=size,    style=wx.NO_BORDER)    # Event Handlers    self.Bind(wx.EVT_PAINT, self.OnPaint)  def OnPaint(self, event):    """Draw the image on to the panel"""    dc = wx.PaintDC(self) # Must create a PaintDC    # Get the working rectangle we can draw in    rect = self.GetClientRect()    # Setup the DC    dc.SetPen(wx.BLACK_PEN) # for drawing lines / borders    yellowbrush = wx.Brush(wx.Colour(255, 255, 0))    dc.SetBrush(yellowbrush) # Yellow fill    cx = (rect.width / 2) + rect.x    cy = (rect.width / 2) + rect.y    radius = min(rect.width, rect.height) / 2    dc.DrawCircle(cx, cy, radius)    eyesz = (rect.width / 8, rect.height / 8)    eyepos = (cx / 2, cy / 2)    dc.SetBrush(wx.BLUE_BRUSH)    dc.DrawRectangle(eyepos[0], eyepos[1],    eyesz[0], eyesz[1])    eyepos = (eyepos[0] + (cx - eyesz[0]), eyepos[1])    dc.DrawRectangle(eyepos[0], eyepos[1],    eyesz[0], eyesz[1])    dc.SetBrush(yellowbrush)    startpos = (cx / 2, (cy / 2) + cy)    endpos = (cx + startpos[0], startpos[1])    dc.DrawArc(startpos[0], startpos[1],    endpos[0], endpos[1], cx, cy)    dc.SetPen(wx.TRANSPARENT_PEN)    dc.DrawRectangle(startpos[0], cy,    endpos[0] - startpos[0],    startpos[1] - cy)class MyFrame(wx.Frame):  def __init__(self, parent, *args, **kwargs):    super(MyFrame, self).__init__(parent, *args, **kwargs)    # Attributes    self.Panel = wx.Panel(self)    Smiley(self.Panel)class MyApp(wx.App):  def OnInit(self):    self.frame = MyFrame(None, title="DrawShapes",size = [500, 500])    self.SetTopWindow(self.frame)    self.frame.Show()    return Trueif __name__ == "__main__":  app = MyApp(False)  app.MainLoop()