wx.Panel.__init__(self, parent, -1)
self.Bind(wx.EVT_PAINT, self.OnPaint)
- txt = "On the Mac these squares should be transparent, if the\n" \
- "CoreGraphics option is turned on. "
- if "wxMac" in wx.PlatformInfo:
- txt += "This build of wxPython\n" \
- "%s have the CoreGraphics option turned on." \
- % ("mac-cg" in wx.PlatformInfo and "DOES" or "DOS NOT")
+ txt = """\
+If this build of wxPython includes the new wx.GCDC class (which
+provides the wx.DC API on top of the new wx.GraphicsContext class)
+then these squares should be transparent.
+"""
wx.StaticText(self, -1, txt, (20, 20))
def OnPaint(self, evt):
- dc = wx.PaintDC(self)
+ pdc = wx.PaintDC(self)
+ try:
+ dc = wx.GCDC(pdc)
+ except:
+ dc = pdc
rect = wx.Rect(0,0, 100, 100)
for RGB, pos in [((178, 34, 34), ( 50, 90)),
(( 35, 142, 35), (110, 150)),
dc.SetPen(wx.Pen(penclr))
dc.SetBrush(wx.Brush(brushclr))
rect.SetPosition(pos)
- dc.DrawRectangleRect(rect)
+ dc.DrawRoundedRectangleRect(rect, 8)
#----------------------------------------------------------------------
overview = """<html><body>
<h2><center>Alpha Drawing</center></h2>
-The wx.DC on Mac now supports alpha transparent drawing using pens and
-brushes. This is accomplished by enabling the wx.Colour class to have
-a fourth component for the alpha value, where 0 is fully transparent,
-and 255 is fully opaque.
-
-<p>You can consider this a \"preview of coming attractions\" for the
-other platforms.
+The wx.GCDC class is a class that implemented the wx.DC API using the
+new wx.GraphicsContext class, and so it supports anti-aliased drawing
+using pens and brushes, that can optionally also be drawn using an
+alpha transparency. (On the Mac all the DC classes are using this new
+implementation.) This is accomplished by enabling the wx.Colour class
+to have a fourth component for the alpha value, where 0 is fully
+transparent, and 255 is fully opaque.
</body></html>
"""
projects / wxWidgets.git / blobdiff