wxPython/demo/MDIDemo.py

   1
   2 import  wx
   3
   4 # Importing ScrolledWindow demo to make use of the MyCanvas
   5 # class defined within.
   6 import  ScrolledWindow
   7 import  images
   8
   9 SHOW_BACKGROUND = 1
  10
  11 #----------------------------------------------------------------------
  12 ID_New  = wx.NewId()
  13 ID_Exit = wx.NewId()
  14 #----------------------------------------------------------------------
  15
  16 class MyParentFrame(wx.MDIParentFrame):
  17     def __init__(self):
  18         wx.MDIParentFrame.__init__(self, None, -1, "MDI Parent", size=(600,400))
  19
  20         self.winCount = 0
  21         menu = wx.Menu()
  22         menu.Append(ID_New, "&New Window")
  23         menu.AppendSeparator()
  24         menu.Append(ID_Exit, "E&xit")
  25
  26         menubar = wx.MenuBar()
  27         menubar.Append(menu, "&File")
  28         self.SetMenuBar(menubar)
  29
  30         self.CreateStatusBar()
  31
  32         self.Bind(wx.EVT_MENU, self.OnNewWindow, id=ID_New)
  33         self.Bind(wx.EVT_MENU, self.OnExit, id=ID_Exit)
  34
  35         if SHOW_BACKGROUND:
  36             self.bg_bmp = images.getGridBGBitmap()
  37             self.GetClientWindow().Bind(
  38                 wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground
  39                 )
  40
  41
  42     def OnExit(self, evt):
  43         self.Close(True)
  44
  45
  46     def OnNewWindow(self, evt):
  47         self.winCount = self.winCount + 1
  48         win = wx.MDIChildFrame(self, -1, "Child Window: %d" % self.winCount)
  49         canvas = ScrolledWindow.MyCanvas(win)
  50         win.Show(True)
  51
  52
  53     def OnEraseBackground(self, evt):
  54         dc = evt.GetDC()
  55
  56         if not dc:
  57             dc = wx.ClientDC(self.GetClientWindow())
  58
  59         # tile the background bitmap
  60         sz = self.GetClientSize()
  61         w = self.bg_bmp.GetWidth()
  62         h = self.bg_bmp.GetHeight()
  63         x = 0
  64
  65         while x < sz.width:
  66             y = 0
  67
  68             while y < sz.height:
  69                 dc.DrawBitmap(self.bg_bmp, (x, y))
  70                 y = y + h
  71
  72             x = x + w
  73
  74
  75 #----------------------------------------------------------------------
  76
  77 if __name__ == '__main__':
  78     class MyApp(wx.App):
  79         def OnInit(self):
  80             wx.InitAllImageHandlers()
  81             frame = MyParentFrame()
  82             frame.Show(True)
  83             self.SetTopWindow(frame)
  84             return True
  85
  86
  87     app = MyApp(False)
  88     app.MainLoop()
  89
  90
  91