wxPython/tests/test_gcMemDC.py

   1 """
   2 Tests using a memory dc (or a buffered dc) as the target of a
   3 wx.GraphicsContext.
   4 """
   5
   6 import wx
   7 #import os; print "PID:", os.getpid(); raw_input("Press Enter...")
   8
   9
  10 class TestPanel(wx.Panel):
  11     def __init__(self, *args, **kw):
  12         wx.Panel.__init__(self, *args, **kw)
  13         self.Bind(wx.EVT_PAINT, self.OnPaint)
  14         self.Bind(wx.EVT_SIZE, self.OnSize)
  15
  16     def OnSize(self, evt):
  17         self.Refresh()
  18
  19     def OnPaint(self, evt):
  20         #dc = wx.PaintDC(self)
  21         dc = wx.BufferedPaintDC(self)
  22         gcdc = wx.GCDC(dc)
  23
  24         sz = self.GetSize()
  25         gcdc.SetBackground(wx.Brush(self.GetBackgroundColour()))
  26         gcdc.Clear()
  27         gcdc.DrawLine(0, 0, sz.width, sz.height)
  28         gcdc.DrawLine(sz.width, 0, 0, sz.height)
  29
  30
  31 app = wx.App(False)
  32 frm = wx.Frame(None, title="GC/MemoryDC")
  33 pnl = TestPanel(frm)
  34 frm.Show()
  35 app.MainLoop()