wxWidgets/wxPython/demo/ImageAlpha.py
Robin Dunn 6a8fa617f1 fixed typo
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26222 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2004-03-15 22:57:03 +00:00

74 lines
1.9 KiB
Python

import wx # This module uses the new wx namespace
from Main import opj
#----------------------------------------------------------------------
msg = "This is some text that will appear behind the image..."
class TestPanel(wx.Panel):
def __init__(self, parent, log):
self.log = log
wx.Panel.__init__(self, parent, -1)
self.Bind(wx.EVT_PAINT, self.OnPaint)
def OnPaint(self, evt):
dc = wx.PaintDC(self)
dc.SetBackground(wx.Brush("WHITE"))
dc.Clear()
dc.SetFont(wx.Font(16, wx.SWISS, wx.NORMAL, wx.BOLD, True))
dc.DrawText("Bitmap alpha blending (on wxMSW and wxMac only)",
(25,25))
bmp = wx.Bitmap(opj('bitmaps/toucan.png'))
if "__WXGTK__" in wx.PlatformInfo:
# try to make up for it a bit...
bmp.SetMaskColour("black")
dc.DrawBitmap(bmp, (25,100), True)
dc.SetFont(self.GetFont())
y = 75
for line in range(10):
y += dc.GetCharHeight() + 5
dc.DrawText(msg, (200, y))
dc.DrawBitmap(bmp, (250,100), True)
#----------------------------------------------------------------------
def runTest(frame, nb, log):
win = TestPanel(nb, log)
return win
#----------------------------------------------------------------------
overview = """<html><body>
<h2><center>Images with Alpha</center></h2>
wxMSW and wxMac now support alpha channels of supported image
types, and will properly blend that channel when drawing a
bitmap. It is not supported yet on wxGTK, (if you would like to
change that please submit a patch!)
<p>On wxGTK this demo turns the alpha channel into a 1-bit mask, so
yes, it looks like crap. Please help us fix it!
</body></html>
"""
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])