utils/wxPython/demo/wxMask.py

   1
   2 from wxPython.wx import *
   3
   4 #----------------------------------------------------------------------
   5
   6 logic = ['']*16
   7 def rlf(x):
   8     logic[eval(x)]=x
   9
  10
  11 rlf('wxAND')
  12 rlf('wxAND_INVERT')
  13 rlf('wxAND_REVERSE')
  14 rlf('wxCLEAR')
  15 rlf('wxCOPY')
  16 rlf('wxEQUIV')
  17 rlf('wxINVERT')
  18 rlf('wxNAND')
  19 rlf('wxNOR')
  20 rlf('wxNO_OP')
  21 rlf('wxOR')
  22 rlf('wxOR_INVERT')
  23 rlf('wxOR_REVERSE')
  24 rlf('wxSET')
  25 rlf('wxSRC_INVERT')
  26 rlf('wxXOR')
  27
  28 class TestMaskWindow(wxScrolledWindow):
  29     def __init__(self, parent):
  30         wxScrolledWindow.__init__(self, parent, -1)
  31         self.SetBackgroundColour(wxColour(0,128,0))
  32
  33         # A reference bitmap that we won't mask
  34         self.bmp_nomask  = wxBitmap('bitmaps/test_image.png', wxBITMAP_TYPE_PNG)
  35
  36         # One that we will
  37         self.bmp_withmask  = wxBitmap('bitmaps/test_image.png', wxBITMAP_TYPE_PNG)
  38
  39         # this mask comes from a monochrome bitmap
  40         self.bmp_themask = wxBitmap('bitmaps/test_mask.bmp',  wxBITMAP_TYPE_BMP)
  41         self.bmp_themask.SetDepth(1)
  42         mask = wxMask(self.bmp_themask)
  43
  44         # set the mask on our bitmap
  45         self.bmp_withmask.SetMask(mask)
  46
  47         # Now we'll create a mask in a bit of an easier way, by picking a
  48         # colour in the image that is to be the transparent colour.
  49         self.bmp_withcolourmask  = wxBitmap('bitmaps/test_image.png', wxBITMAP_TYPE_PNG)
  50         mask = wxMaskColour(self.bmp_withcolourmask, wxWHITE)
  51         self.bmp_withcolourmask.SetMask(mask)
  52
  53         self.SetScrollbars(20, 20, 600/20, 460/20)
  54
  55
  56
  57     def OnPaint (self, e):
  58         dc = wxPaintDC(self)
  59         self.PrepareDC(dc)
  60         dc.SetTextForeground(wxWHITE)
  61
  62         # make an interesting background...
  63         dc.SetPen(wxMEDIUM_GREY_PEN)
  64         for i in range(100):
  65             dc.DrawLine(0,i*10,i*10,0)
  66
  67         # draw raw image, mask, and masked images
  68         dc.DrawText('original image', 0,0)
  69         dc.DrawBitmap(self.bmp_nomask, 0,20, 0)
  70         dc.DrawText('with colour mask', 0,100)
  71         dc.DrawBitmap(self.bmp_withcolourmask, 0,120, 1)
  72         dc.DrawText('the mask image', 0,200)
  73         dc.DrawBitmap(self.bmp_themask, 0,220, 0)
  74         dc.DrawText('masked image', 0,300)
  75         dc.DrawBitmap(self.bmp_withmask, 0,320, 1)
  76
  77         cx,cy = self.bmp_themask.GetWidth(), self.bmp_themask.GetHeight()
  78
  79         # draw array of assorted blit operations
  80         mdc = wxMemoryDC()
  81         for i in range(16):
  82             text = logic[i]
  83             x,y = 120+100*(i%4), 20+100*(i/4)
  84             dc.DrawText(text, x,y-20)
  85             mdc.SelectObject(self.bmp_withcolourmask)
  86             dc.Blit(x,y, cx,cy, mdc, 0,0, i,1)
  87
  88
  89
  90
  91
  92 #----------------------------------------------------------------------
  93
  94 def runTest(frame, nb, log):
  95     win = TestMaskWindow(nb)
  96     return win
  97
  98 #----------------------------------------------------------------------
  99
 100
 101
 102 overview = """\
 103 """