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Add demo showing drawing of an image with an Alpha channel.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26170 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn 2004-03-10 06:52:36 +00:00
parent fe76311545
commit 8a88769e50
4 changed files with 69 additions and 0 deletions
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1
wxPython/demo/DragImage.py
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@ -51,6 +51,7 @@ class DragCanvas(wx.ScrolledWindow):
# Make a shape from an image and mask. This one will demo # Make a shape from an image and mask. This one will demo
# dragging outside the window # dragging outside the window
bmp = images.getTestStarBitmap() bmp = images.getTestStarBitmap()
##bmp = wx.Bitmap('bitmaps/toucan.png')
shape = DragShape(bmp) shape = DragShape(bmp)
shape.pos = (5, 5) shape.pos = (5, 5)
shape.fullscreen = True shape.fullscreen = True

66
wxPython/demo/ImageAlpha.py Normal file
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@ -0,0 +1,66 @@
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 wxGTK)",
(25,25))
bmp = wx.Bitmap(opj('bitmaps/toucan.png'))
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 wxGTK now support alpha channels of supported image
types, and will properly blend that chennel when drawing a
bitmap. It is not supported yet on wxGTK, (if you would like to
change that please submit a patch!)
</body></html>
"""
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])

2
wxPython/demo/Main.py
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@ -38,6 +38,7 @@ _treeList = [
'GridBagSizer', 'GridBagSizer',
'Cursor', 'Cursor',
'PyPlot', 'PyPlot',
'ImageAlpha',
]), ]),
# managed windows == things with a (optional) caption you can close # managed windows == things with a (optional) caption you can close
@ -193,6 +194,7 @@ _treeList = [
'Cursor', 'Cursor',
'DragImage', 'DragImage',
'Image', 'Image',
'ImageAlpha',
'ImageFromStream', 'ImageFromStream',
'Mask', 'Mask',
'Throbber', 'Throbber',

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wxPython/demo/bitmaps/toucan.png Normal file
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