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bpo-25451: Add transparency methods to tkinter.PhotoImage. (GH-10406)

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Zackery Spytz 2019-04-05 04:17:13 -06:00 • committed by Serhiy Storchaka
parent f66e336f45
commit 50866e9ed3
4 changed files with 25 additions and 0 deletions
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9
Lib/tkinter/__init__.py
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@ -4124,6 +4124,15 @@ class PhotoImage(Image):
args = args + ('-from',) + tuple(from_coords)
self.tk.call(args)
def transparency_get(self, x, y):
"""Return True if the pixel at x,y is transparent."""
return self.tk.getboolean(self.tk.call(
self.name, 'transparency', 'get', x, y))
def transparency_set(self, x, y, boolean):
"""Set the transparency of the pixel at x,y."""
self.tk.call(self.name, 'transparency', 'set', x, y, boolean)
class BitmapImage(Image):
"""Widget which can display images in XBM format."""

9
Lib/tkinter/test/test_tkinter/test_images.py
View file

@ -320,6 +320,15 @@ class PhotoImageTest(AbstractTkTest, unittest.TestCase):
self.assertEqual(image3.get(0, 0), image.get(4, 6))
self.assertEqual(image3.get(1, 2), image.get(5, 8))
def test_transparency(self):
image = self.create()
self.assertEqual(image.transparency_get(0, 0), True)
self.assertEqual(image.transparency_get(4, 6), False)
image.transparency_set(4, 6, True)
self.assertEqual(image.transparency_get(4, 6), True)
image.transparency_set(4, 6, False)
self.assertEqual(image.transparency_get(4, 6), False)
tests_gui = (MiscTest, BitmapImageTest, PhotoImageTest,)