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Added sample showing Alpha drawing for Mac with CoreGraphics

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41073 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn
2006-09-08 18:16:06 +00:00
parent 716af436dc
commit 59780c72c6
2 changed files with 64 additions and 0 deletions
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61
wxPython/demo/AlphaDrawing.py Normal file
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@@ -0,0 +1,61 @@
import wx
#----------------------------------------------------------------------
class TestPanel(wx.Panel):
def __init__(self, parent, log):
self.log = log
wx.Panel.__init__(self, parent, -1)
wx.StaticText(self, -1,
"On the Mac these squares should be transparent,\n"
"if the CoreGrahics option is turned on.",
(20, 20))
self.Bind(wx.EVT_PAINT, self.OnPaint)
def OnPaint(self, evt):
dc = wx.PaintDC(self)
rect = wx.Rect(0,0, 100, 100)
for RGB, pos in [((178, 34, 34), ( 50, 70)),
(( 35, 142, 35), (110, 130)),
(( 0, 0, 139), (170, 70))
]:
r, g, b = RGB
penclr = wx.Colour(r, g, b, wx.ALPHA_OPAQUE)
brushclr = wx.Colour(r, g, b, 128) # half transparent
dc.SetPen(wx.Pen(penclr))
dc.SetBrush(wx.Brush(brushclr))
rect.SetPosition(pos)
dc.DrawRectangleRect(rect)
#----------------------------------------------------------------------
def runTest(frame, nb, log):
win = TestPanel(nb, log)
return win
#----------------------------------------------------------------------
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.
</body></html>
"""
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])

3
wxPython/demo/Main.py
View File

@@ -60,6 +60,7 @@ _treeList = [
'BitmapFromBuffer', 'BitmapFromBuffer',
'RawBitmapAccess', 'RawBitmapAccess',
'DragScroller', 'DragScroller',
'AlphaDrawing',
]), ]),
# managed windows == things with a (optional) caption you can close # managed windows == things with a (optional) caption you can close
@@ -232,6 +233,7 @@ _treeList = [
# Images # Images
('Using Images', [ ('Using Images', [
'AlphaDrawing',
'ArtProvider', 'ArtProvider',
'BitmapFromBuffer', 'BitmapFromBuffer',
'Cursor', 'Cursor',
@@ -247,6 +249,7 @@ _treeList = [
# Other stuff # Other stuff
('Miscellaneous', [ ('Miscellaneous', [
'AlphaDrawing',
'ColourDB', 'ColourDB',
##'DialogUnits', # needs more explanations ##'DialogUnits', # needs more explanations
'DragScroller', 'DragScroller',