wxWidgets/wxPython/tests/test_gcMemDC.py

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"""
Tests using a memory dc (or a buffered dc) as the target of a
wx.GraphicsContext.
"""
import wx
#import os; print "PID:", os.getpid(); raw_input("Press Enter...")
class TestPanel(wx.Panel):
def __init__(self, *args, **kw):
wx.Panel.__init__(self, *args, **kw)
self.Bind(wx.EVT_PAINT, self.OnPaint)
self.Bind(wx.EVT_SIZE, self.OnSize)
def OnSize(self, evt):
self.Refresh()
def OnPaint(self, evt):
#dc = wx.PaintDC(self)
dc = wx.BufferedPaintDC(self)
gcdc = wx.GCDC(dc)
sz = self.GetSize()
gcdc.SetBackground(wx.Brush(self.GetBackgroundColour()))
gcdc.Clear()
gcdc.DrawLine(0, 0, sz.width, sz.height)
gcdc.DrawLine(sz.width, 0, 0, sz.height)
app = wx.App(False)
frm = wx.Frame(None, title="GC/MemoryDC")
pnl = TestPanel(frm)
frm.Show()
app.MainLoop()