| | 1 | |
| | 2 | import wx |
| | 3 | |
| | 4 | #---------------------------------------------------------------------- |
| | 5 | |
| | 6 | class TestPanel(wx.Panel): |
| | 7 | def __init__(self, parent, log): |
| | 8 | self.log = log |
| | 9 | wx.Panel.__init__(self, parent, -1) |
| | 10 | self.Bind(wx.EVT_PAINT, self.OnPaint) |
| | 11 | |
| | 12 | txt = "On the Mac these squares should be transparent, if the\n" \ |
| | 13 | "CoreGraphics option is turned on. " |
| | 14 | if "wxMac" in wx.PlatformInfo: |
| | 15 | txt += "This build of wxPython\n" \ |
| | 16 | "%s have the CoreGraphics option turned on." \ |
| | 17 | % ("mac-cg" in wx.PlatformInfo and "DOES" or "DOS NOT") |
| | 18 | wx.StaticText(self, -1, txt, (20, 20)) |
| | 19 | |
| | 20 | |
| | 21 | def OnPaint(self, evt): |
| | 22 | dc = wx.PaintDC(self) |
| | 23 | rect = wx.Rect(0,0, 100, 100) |
| | 24 | for RGB, pos in [((178, 34, 34), ( 50, 90)), |
| | 25 | (( 35, 142, 35), (110, 150)), |
| | 26 | (( 0, 0, 139), (170, 90)) |
| | 27 | ]: |
| | 28 | r, g, b = RGB |
| | 29 | penclr = wx.Colour(r, g, b, wx.ALPHA_OPAQUE) |
| | 30 | brushclr = wx.Colour(r, g, b, 128) # half transparent |
| | 31 | dc.SetPen(wx.Pen(penclr)) |
| | 32 | dc.SetBrush(wx.Brush(brushclr)) |
| | 33 | rect.SetPosition(pos) |
| | 34 | dc.DrawRoundedRectangleRect(rect, 8) |
| | 35 | |
| | 36 | |
| | 37 | #---------------------------------------------------------------------- |
| | 38 | |
| | 39 | def runTest(frame, nb, log): |
| | 40 | win = TestPanel(nb, log) |
| | 41 | return win |
| | 42 | |
| | 43 | #---------------------------------------------------------------------- |
| | 44 | |
| | 45 | |
| | 46 | |
| | 47 | overview = """<html><body> |
| | 48 | <h2><center>Alpha Drawing</center></h2> |
| | 49 | |
| | 50 | The wx.DC on Mac now supports alpha transparent drawing using pens and |
| | 51 | brushes. This is accomplished by enabling the wx.Colour class to have |
| | 52 | a fourth component for the alpha value, where 0 is fully transparent, |
| | 53 | and 255 is fully opaque. |
| | 54 | |
| | 55 | <p>You can consider this a \"preview of coming attractions\" for the |
| | 56 | other platforms. |
| | 57 | |
| | 58 | </body></html> |
| | 59 | """ |
| | 60 | |
| | 61 | |
| | 62 | |
| | 63 | if __name__ == '__main__': |
| | 64 | import sys,os |
| | 65 | import run |
| | 66 | run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:]) |
| | 67 | |
projects / wxWidgets.git / blame_incremental