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Miss Islington (bot)
f663e54dc4
gh-152728: IDLE - move 3 toplevel fix_xyz functions to idlelb.util (GH-152729)
IDLE - move 3 toplevel fix_xyz functions to idlelb.util
Move idlelib functions run.fix_scaling, editor.fixwordbreaks
(as fix_word_breaks). All are used in at least 3 modules.
(cherry picked from commit 53ca52ddb0)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
71 lines
2.5 KiB
Python
71 lines
2.5 KiB
Python
"""
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Idlelib objects with no external idlelib dependencies
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which are needed in more than one idlelib module.
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They are included here because
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a) they don't particularly belong elsewhere; or
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b) because inclusion here simplifies the idlelib dependency graph.
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TODO:
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* Python versions (editor and help_about),
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* tk version and patchlevel (pyshell, help_about, maxos?, editor?),
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* std streams (pyshell, run),
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* warning stuff (pyshell, run).
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"""
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import sys
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# .pyw is for Windows; .pyi is for typing stub files.
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# The extension order is needed for iomenu open/save dialogs.
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py_extensions = ('.py', '.pyw', '.pyi')
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# fix_x functions seem only needed once per process.
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def fix_scaling(root): # Called in filelist _test, pyshell, and run.
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"""Scale fonts on HiDPI displays, once per process."""
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import tkinter.font
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scaling = float(root.tk.call('tk', 'scaling'))
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if scaling > 1.4:
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for name in tkinter.font.names(root):
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font = tkinter.font.Font(root=root, name=name, exists=True)
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size = int(font['size'])
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if size < 0:
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font['size'] = round(-0.75*size)
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# Fix for HiDPI screens on Windows. CALL BEFORE ANY TK OPERATIONS!
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# URL for arguments for the ...Awareness call below.
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# https://msdn.microsoft.com/en-us/library/windows/desktop/dn280512(v=vs.85).aspx
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if sys.platform == 'win32': # pragma: no cover
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def fix_win_hidpi(): # Called in pyshell and turtledemo.
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try:
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import ctypes
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PROCESS_SYSTEM_DPI_AWARE = 1 # Int required.
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ctypes.OleDLL('shcore').SetProcessDpiAwareness(PROCESS_SYSTEM_DPI_AWARE)
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except (ImportError, AttributeError, OSError):
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pass
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def fix_word_breaks(root): # Called in editor htest, filelist _test, pyshell.
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# On Windows, tcl/tk breaks 'words' only on spaces, as in Command Prompt.
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# We want Motif style everywhere. See #21474, msg218992 and followup.
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tk = root.tk
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tk.call('tcl_wordBreakAfter', 'a b', 0) # make sure word.tcl is loaded
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tk.call('set', 'tcl_wordchars', r'\w')
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tk.call('set', 'tcl_nonwordchars', r'\W')
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def fix_x11_paste(root):
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"Make paste replace selection on x11. See issue #5124."
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if root._windowingsystem == 'x11':
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for cls in 'Text', 'Entry', 'Spinbox':
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root.bind_class(
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cls,
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'<<Paste>>',
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'catch {%W delete sel.first sel.last}\n' +
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root.bind_class(cls, '<<Paste>>'))
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if __name__ == '__main__':
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from unittest import main
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main('idlelib.idle_test.test_util', verbosity=2)
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