wxPython/demo/ShapedWindow.py

   1
   2 import  wx
   3 import  images
   4
   5 #----------------------------------------------------------------------
   6
   7 class TestFrame(wx.Frame):
   8     def __init__(self, parent, log):
   9         self.log = log
  10         wx.Frame.__init__(self, parent, -1, "Shaped Window",
  11                          style =
  12                            wx.FRAME_SHAPED
  13                          | wx.SIMPLE_BORDER
  14                          | wx.FRAME_NO_TASKBAR
  15                          | wx.STAY_ON_TOP
  16                          )
  17
  18         self.hasShape = False
  19         self.delta = (0,0)
  20
  21         self.Bind(wx.EVT_LEFT_DCLICK,   self.OnDoubleClick)
  22         self.Bind(wx.EVT_LEFT_DOWN,     self.OnLeftDown)
  23         self.Bind(wx.EVT_LEFT_UP,       self.OnLeftUp)
  24         self.Bind(wx.EVT_MOTION,        self.OnMouseMove)
  25         self.Bind(wx.EVT_RIGHT_UP,      self.OnExit)
  26         self.Bind(wx.EVT_PAINT,         self.OnPaint)
  27
  28         self.bmp = images.getVippiBitmap()
  29         w, h = self.bmp.GetWidth(), self.bmp.GetHeight()
  30         self.SetClientSize( (w, h) )
  31
  32         if wx.Platform != "__WXMAC__":
  33             # wxMac clips the tooltip to the window shape, YUCK!!!
  34             self.SetToolTipString("Right-click to close the window\n"
  35                                   "Double-click the image to set/unset the window shape")
  36
  37         if wx.Platform == "__WXGTK__":
  38             # wxGTK requires that the window be created before you can
  39             # set its shape, so delay the call to SetWindowShape until
  40             # this event.
  41             self.Bind(wx.EVT_WINDOW_CREATE, self.SetWindowShape)
  42         else:
  43             # On wxMSW and wxMac the window has already been created, so go for it.
  44             self.SetWindowShape()
  45
  46         dc = wx.ClientDC(self)
  47         dc.DrawBitmap(self.bmp, 0,0, True)
  48
  49
  50     def SetWindowShape(self, *evt):
  51         # Use the bitmap's mask to determine the region
  52         r = wx.RegionFromBitmap(self.bmp)
  53         self.hasShape = self.SetShape(r)
  54
  55
  56     def OnDoubleClick(self, evt):
  57         if self.hasShape:
  58             self.SetShape(wx.Region())
  59             self.hasShape = False
  60         else:
  61             self.SetWindowShape()
  62
  63
  64     def OnPaint(self, evt):
  65         dc = wx.PaintDC(self)
  66         dc.DrawBitmap(self.bmp, 0,0, True)
  67
  68     def OnExit(self, evt):
  69         self.Close()
  70
  71
  72     def OnLeftDown(self, evt):
  73         self.CaptureMouse()
  74         x, y = self.ClientToScreen(evt.GetPosition())
  75         originx, originy = self.GetPosition()
  76         dx = x - originx
  77         dy = y - originy
  78         self.delta = ((dx, dy))
  79
  80
  81     def OnLeftUp(self, evt):
  82         if self.HasCapture():
  83             self.ReleaseMouse()
  84
  85
  86     def OnMouseMove(self, evt):
  87         if evt.Dragging() and evt.LeftIsDown():
  88             x, y = self.ClientToScreen(evt.GetPosition())
  89             fp = (x - self.delta[0], y - self.delta[1])
  90             self.Move(fp)
  91
  92
  93 #---------------------------------------------------------------------------
  94
  95 class TestPanel(wx.Panel):
  96     def __init__(self, parent, log):
  97         self.log = log
  98         wx.Panel.__init__(self, parent, -1)
  99
 100         b = wx.Button(self, -1, "Show the ShapedWindow sample", (50,50))
 101         self.Bind(wx.EVT_BUTTON, self.OnButton, b)
 102
 103
 104     def OnButton(self, evt):
 105         win = TestFrame(self, self.log)
 106         win.Show(True)
 107
 108 #---------------------------------------------------------------------------
 109
 110
 111 def runTest(frame, nb, log):
 112     win = TestPanel(nb, log)
 113     return win
 114
 115 #----------------------------------------------------------------------
 116
 117
 118
 119 overview = """<html><body>
 120 <h2><center>Shaped Window</center></h2>
 121
 122 Top level windows now have a SetShape method that lets you set a
 123 non-rectangular shape for the window using a wxRegion.  All pixels
 124 outside of the region will not be drawn and the window will not be
 125 sensitive to the mouse in those areas either.
 126
 127 </body></html>
 128 """
 129
 130
 131
 132 if __name__ == '__main__':
 133     import sys,os
 134     import run
 135     run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
 136