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675c97eb6c
When simple query dialogs (tkinter.simpledialog), message boxes (tkinter.messagebox) or color choose dialog (tkinter.colorchooser) are created without arguments master and parent, and the default root window is not yet created, a new temporary hidden root window will be created automatically. It will not be set as the default root window and will be destroyed right after closing the dialog window. It will help to use these simple dialog windows in programs which do not need other GUI. Previously, message boxes and color chooser created the blank root window and left it after closing the dialog window, and query dialogs just raised an exception. Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
53 lines
1.3 KiB
Python
53 lines
1.3 KiB
Python
# base class for tk common dialogues
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#
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# this module provides a base class for accessing the common
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# dialogues available in Tk 4.2 and newer. use filedialog,
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# colorchooser, and messagebox to access the individual
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# dialogs.
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#
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# written by Fredrik Lundh, May 1997
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#
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__all__ = ["Dialog"]
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from tkinter import Frame, _get_temp_root, _destroy_temp_root
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class Dialog:
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command = None
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def __init__(self, master=None, **options):
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if master is None:
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master = options.get('parent')
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self.master = master
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self.options = options
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def _fixoptions(self):
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pass # hook
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def _fixresult(self, widget, result):
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return result # hook
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def show(self, **options):
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# update instance options
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for k, v in options.items():
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self.options[k] = v
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self._fixoptions()
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master = self.master
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if master is None:
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master = _get_temp_root()
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try:
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self._test_callback(master) # The function below is replaced for some tests.
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s = master.tk.call(self.command, *master._options(self.options))
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s = self._fixresult(master, s)
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finally:
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_destroy_temp_root(master)
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return s
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def _test_callback(self, master):
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pass
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