Skip to content

bpo-25451: Add transparency methods to tkinter.PhotoImage #10406

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
serhiy-storchaka merged 3 commits into from
Apr 5, 2019
Merged

bpo-25451: Add transparency methods to tkinter.PhotoImage #10406

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
eb09385
bpo-25451: Add transparency methods to tkinter.PhotoImage
ZackerySpytz Nov 8, 2018
d38114b
Merge remote-tracking branch 'upstream/master' into bpo-25451-PhotoIm…
ZackerySpytz Apr 4, 2019
d90ab70
Apply the requested changes.
ZackerySpytz Apr 4, 2019
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions Doc/whatsnew/3.8.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -379,6 +379,11 @@ Added method :meth:`~tkinter.Canvas.moveto`
in the :class:`tkinter.Canvas` class.
(Contributed by Juliette Monsel in :issue:`23831`.)

The :class:`tkinter.PhotoImage` class now has
:meth:`~tkinter.PhotoImage.transparency_get` and
:meth:`~tkinter.PhotoImage.transparency_set` methods. (Contributed by
Zackery Spytz in :issue:`25451`.)

time
----

Expand Down
9 changes: 9 additions & 0 deletions Lib/tkinter/__init__.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4124,6 +4124,15 @@ def write(self, filename, format=None, from_coords=None):
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."""
Expand Down
9 changes: 9 additions & 0 deletions Lib/tkinter/test/test_tkinter/test_images.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -320,6 +320,15 @@ def test_write(self):
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,)

Expand Down
2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2018-11-07-23-44-25.bpo-25451.re_8db.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
Add transparency methods to :class:`tkinter.PhotoImage`. Patch by Zackery
Spytz.