+ %pythoncode {
+ def __iter__(self):
+ """
+ Create and return an iterator object for this pixel data
+ object. (It's really a generator but I won't tell if you
+ don't tell.)
+ """
+ width = self.GetWidth()
+ height = self.GetHeight()
+ pixels = self.GetPixels()
+
+ # This class is a facade over the pixels object (using the one
+ # in the enclosing scope) that only allows Get() and Set() to
+ # be called.
+ class PixelFacade(object):
+ def Get(self):
+ return pixels.Get()
+ def Set(self, *args, **kw):
+ return pixels.Set(*args, **kw)
+ def __str__(self):
+ return str(self.Get())
+ def __repr__(self):
+ return 'pixel(%d,%d): %s' % (x,y,self.Get())
+ X = property(lambda self: x)
+ Y = property(lambda self: y)
+
+ pf = PixelFacade()
+ for y in xrange(height):
+ for x in xrange(width):
+ # We always generate the same pf instance, but it
+ # accesses the pixels object which we use to iterate
+ # over the pixel buffer.
+ yield pf
+ pixels.nextPixel()
+ pixels.MoveTo(self, 0, y)
+ }
+
+ %property(Pixels, GetPixels, doc="See `GetPixels`");