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gh-153256: Add tk_print() methods to tkinter Canvas and Text by serhiy-storchaka · Pull Request #153257 · python/cpython · GitHub

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14 changes: 14 additions & 0 deletions Doc/library/tkinter.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -3555,6 +3555,13 @@ Widget classes
A newly created item is placed at the top of the list; the order can be
changed with :meth:`tag_raise` and :meth:`tag_lower`.

.. method:: tk_print()

Print the contents of the canvas using the native print dialog.
Requires Tk 8.7/9.0 or newer.

.. versionadded:: next

.. method:: create_arc(*args, **kw)
create_bitmap(*args, **kw)
create_image(*args, **kw)
Expand Down Expand Up @@ -5366,6 +5373,13 @@ Widget classes
to its base; several modifiers may be combined and are applied from left to
right, for example ``'insert wordstart - 1 c'``.

.. method:: tk_print()

Print the contents of the text widget using the native print dialog.
Requires Tk 8.7/9.0 or newer.

.. versionadded:: next

.. method:: insert(index, chars, *args)

Insert the string *chars* just before the character at *index* (if
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5 changes: 5 additions & 0 deletions Doc/whatsnew/3.16.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -406,6 +406,11 @@ tkinter
report the user idle time.
(Contributed by Serhiy Storchaka in :gh:`151881`.)

* Added the :meth:`!tk_print` method to :class:`tkinter.Canvas` and
:class:`tkinter.Text` which prints the contents of the widget using the
native print dialog. It requires Tk 8.7/9.0 or newer.
(Contributed by Serhiy Storchaka in :gh:`153256`.)

* Added new window-management methods :meth:`~tkinter.Misc.winfo_isdark`
(dark mode detection), :meth:`~tkinter.Wm.wm_iconbadge` (application icon
badge) and :meth:`~tkinter.Wm.wm_stackorder` (toplevel stacking order).
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9 changes: 9 additions & 0 deletions Lib/test/test_tkinter/test_misc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -650,6 +650,15 @@ def test_tk_inactive(self):
# Resetting the timer returns None and does not raise.
self.assertIsNone(self.root.tk_inactive(reset=True))

def test_tk_print(self):
# tk print supports only canvas and text widgets, so tk_print is a
# method of Canvas and Text only. Calling it opens the print
# dialog, so the behavior itself cannot be tested here.
self.assertHasAttr(tkinter.Canvas, 'tk_print')
self.assertHasAttr(tkinter.Text, 'tk_print')
self.assertNotHasAttr(tkinter.Frame, 'tk_print')
self.assertNotHasAttr(tkinter.Misc, 'tk_print')

def test_wait_variable(self):
var = tkinter.StringVar(self.root)
self.assertEqual(self.root.waitvar, self.root.wait_variable)
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12 changes: 12 additions & 0 deletions Lib/tkinter/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3131,6 +3131,12 @@ def __init__(self, master=None, cnf={}, **kw):
yscrollcommand, yscrollincrement."""
Widget.__init__(self, master, 'canvas', cnf, kw)

def tk_print(self):
"""Print the contents of the canvas using the native print dialog.

Requires Tk 8.7/9.0 or newer."""
self.tk.call('tk', 'print', self._w)

def addtag(self, *args):
"""Internal function."""
self.tk.call((self._w, 'addtag') + args)
Expand Down Expand Up @@ -4072,6 +4078,12 @@ def __init__(self, master=None, cnf={}, **kw):
"""
Widget.__init__(self, master, 'text', cnf, kw)

def tk_print(self):
"""Print the contents of the text widget using the native print dialog.

Requires Tk 8.7/9.0 or newer."""
self.tk.call('tk', 'print', self._w)

def bbox(self, index): # overrides Misc.bbox
"""Return a tuple of (x,y,width,height) which gives the bounding
box of the visible part of the character at the given index."""
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
Added the :meth:`!tk_print` method to :class:`tkinter.Canvas` and
:class:`tkinter.Text` which prints the contents of the widget using the
native print dialog. It requires Tk 8.7/9.0 or newer.
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