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#!/usr/bin/env python
import wx
#----------------------------------------------------------------------
logicList = [
('wx.AND', wx.AND),
('wx.AND_INVERT', wx.AND_INVERT),
('wx.AND_REVERSE', wx.AND_REVERSE),
('wx.CLEAR', wx.CLEAR),
('wx.COPY', wx.COPY),
('wx.EQUIV', wx.EQUIV),
('wx.INVERT', wx.INVERT),
('wx.NAND', wx.NAND),
('wx.NO_OP', wx.NO_OP),
('wx.OR', wx.OR),
('wx.OR_INVERT', wx.OR_INVERT),
('wx.OR_REVERSE', wx.OR_REVERSE),
('wx.SET', wx.SET),
('wx.SRC_INVERT', wx.SRC_INVERT),
('wx.XOR', wx.XOR),
]
if 'wxMac' in wx.PlatformInfo:
# that's all, folks!
logicList = [
('wx.COPY', wx.COPY),
('wx.XOR', wx.XOR),
]
import images
class TestMaskWindow(wx.ScrolledWindow):
def __init__(self, parent):
wx.ScrolledWindow.__init__(self, parent, -1)
self.SetBackgroundColour(wx.Colour(0,128,0))
# A reference bitmap that we won't mask
self.bmp_nomask = images.TestStar2.GetBitmap()
# One that we will
self.bmp_withmask = images.TestStar2.GetBitmap()
# This mask comes from a monochrome bitmap
self.bmp_themask = images.TestMask.GetImage().ConvertToMonoBitmap(red=255, green=255, blue=255)
mask = wx.Mask(self.bmp_themask)
# Set the mask on our bitmap
self.bmp_withmask.SetMask(mask)
# Now we'll create a mask in a bit of an easier way, by picking a
# colour in the image that is to be the transparent colour.
self.bmp_withcolourmask = images.TestStar2.GetBitmap()
mask = wx.Mask(self.bmp_withcolourmask, wx.WHITE)
self.bmp_withcolourmask.SetMask(mask)
self.SetScrollbars(20, 20, 700//20, 460//20)
self.Bind(wx.EVT_PAINT, self.OnPaint)
def OnPaint (self, e):
self.SetBackgroundColour(wx.Colour(0,128,0))
dc = wx.PaintDC(self)
self.PrepareDC(dc)
dc.SetTextForeground(wx.WHITE)
# Make an interesting background...
dc.SetPen(wx.MEDIUM_GREY_PEN)
for i in range(100):
dc.DrawLine(0,i*10, i*10,0)
# Draw raw image, mask, and masked images
dc.DrawText('original image', 0,0)
dc.DrawBitmap(self.bmp_nomask, 0,20, 0)
dc.DrawText('with colour mask', 0,100)
dc.DrawBitmap(self.bmp_withcolourmask, 0,120, 1)
dc.DrawText('the mask image', 0,200)
dc.DrawBitmap(self.bmp_themask, 0,220, 0)
dc.DrawText('masked image', 0,300)
dc.DrawBitmap(self.bmp_withmask, 0,320, 1)
cx,cy = self.bmp_themask.GetWidth(), self.bmp_themask.GetHeight()
# Draw array of assorted blit operations
mdc = wx.MemoryDC()
i = 0
for text, code in logicList:
x,y = 120+150*(i%4), 20+100*(i/4)
dc.DrawText(text, x, int(y-20))
mdc.SelectObject(self.bmp_withcolourmask)
dc.Blit(x,int(y), cx,cy, mdc, 0,0, code, True)
i = i + 1
# On wxGTK there needs to be a panel under wx.ScrolledWindows if they are
# going to be in a wxNotebook...
class TestPanel(wx.Panel):
def __init__(self, parent, ID):
wx.Panel.__init__(self, parent, ID)
self.win = TestMaskWindow(self)
self.Bind(wx.EVT_SIZE, self.OnSize)
def OnSize(self, evt):
self.win.SetSize(evt.GetSize())
#----------------------------------------------------------------------
def runTest(frame, nb, log):
win = TestPanel(nb, -1)
return win
#----------------------------------------------------------------------
overview = """\
This class encapsulates a monochrome mask bitmap, where the masked area is black
and the unmasked area is white. When associated with a bitmap and drawn in a device
context, the unmasked area of the bitmap will be drawn, and the masked area will
not be drawn.
This example shows not only how to create a Mask, but the effects of the Device
Context (dc) <code>Blit()</code> method's logic codes.
"""
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
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