X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c6281ceb776325251aa119c7b496e6152303996a..299647acac7960652aadb008775429c1f8ea9b8d:/wxPython/demo/Mask.py

diff --git a/wxPython/demo/Mask.py b/wxPython/demo/Mask.py
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+# 11/20/2003 - Jeff Grimmett (grimmtooth@softhome.net)
+#
+# o Updated for wx namespace
+# 
+
+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),
+
+    # this one causes an assert on wxGTK, and doesn't seem to
+    # do much on MSW anyway, so I'll just take it out....
+    #('wxNOR', wxNOR),
+
+    ('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),
+]
+
+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.getTestStar2Bitmap()
+
+        # One that we will
+        self.bmp_withmask  = images.getTestStar2Bitmap()
+
+        # this mask comes from a monochrome bitmap
+        self.bmp_themask = wx.BitmapFromImage(images.getTestMaskImage(), 1)
+        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.getTestStar2Bitmap()
+        mask = wx.MaskColour(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):
+        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, y-20))
+            mdc.SelectObject(self.bmp_withcolourmask)
+            dc.Blit((x,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])])
+