Mercurial > cpython-lru_cache-weakref

annotate Lib/lib-tk/tkFileDialog.py @ 20737:00a581bdedeb legacy-trunk

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When overriding __str__ or __repr__, set the tp_print slot to NULL.
author Guido van Rossum <guido@python.org>
date Mon, 29 Oct 2001 14:33:44 +0000
parents 9c37ed8868b9
children 93253c65d863
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1 #
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2 # Instant Python
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3 # $Id$
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4 #
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5 # tk common file dialogues
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6 #
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7 # this module provides interfaces to the native file dialogues
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8 # available in Tk 4.2 and newer.
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9 #
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10 # written by Fredrik Lundh, May 1997.
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11 #
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12
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13 #
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14 # options (all have default values):
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15 #
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16 # - defaultextension: added to filename if not explicitly given
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17 #
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18 # - filetypes: sequence of (label, pattern) tuples. the same pattern
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19 # may occur with several patterns. use "*" as pattern to indicate
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20 # all files.
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21 #
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22 # - initialdir: initial directory. preserved by dialog instance.
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23 #
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24 # - initialfile: initial file (ignored by the open dialog). preserved
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25 # by dialog instance.
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26 #
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27 # - parent: which window to place the dialog on top of
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28 #
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29 # - title: dialog title
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30 #
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31
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32 from tkCommonDialog import Dialog
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33
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34 class _Dialog(Dialog):
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35
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36 def _fixoptions(self):
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37 try:
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38 # make sure "filetypes" is a tuple
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39 self.options["filetypes"] = tuple(self.options["filetypes"])
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40 except KeyError:
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41 pass
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42
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43 def _fixresult(self, widget, result):
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44 if result:
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45 # keep directory and filename until next time
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46 import os
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47 path, file = os.path.split(result)
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48 self.options["initialdir"] = path
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49 self.options["initialfile"] = file
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50 self.filename = result # compatibility
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51 return result
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52
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53
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54 #
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55 # file dialogs
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56
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57 class Open(_Dialog):
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58 "Ask for a filename to open"
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59
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60 command = "tk_getOpenFile"
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61
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62 class SaveAs(_Dialog):
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63 "Ask for a filename to save as"
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64
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65 command = "tk_getSaveFile"
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66
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67
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68 #
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69 # convenience stuff
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70
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71 def askopenfilename(**options):
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72 "Ask for a filename to open"
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73
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74 return apply(Open, (), options).show()
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75
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76 def asksaveasfilename(**options):
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77 "Ask for a filename to save as"
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78
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79 return apply(SaveAs, (), options).show()
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80
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81 # FIXME: are the following two perhaps a bit too convenient?
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82
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83 def askopenfile(mode = "r", **options):
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84 "Ask for a filename to open, and returned the opened file"
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85
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86 filename = apply(Open, (), options).show()
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87 if filename:
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88 return open(filename, mode)
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89 return None
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90
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91 def asksaveasfile(mode = "w", **options):
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92 "Ask for a filename to save as, and returned the opened file"
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93
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94 filename = apply(SaveAs, (), options).show()
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95 if filename:
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96 return open(filename, mode)
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97 return None
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98
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99
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100 # --------------------------------------------------------------------
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101 # test stuff
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102
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103 if __name__ == "__main__":
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104
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105 print "open", askopenfilename(filetypes=[("all filez", "*")])
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106 print "saveas", asksaveasfilename()