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annotate Lib/lib-tk/tkColorChooser.py @ 79675:c0a2294de787 2.7

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Issue #16199: Backport 2to3 typo fix from 3.2.
author Chris Jerdonek <chris.jerdonek@gmail.com>
date Thu, 11 Oct 2012 16:15:46 -0700
parents 787b969d37f0
children
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1 # tk common colour chooser dialogue
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2 #
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3 # this module provides an interface to the native color dialogue
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4 # available in Tk 4.2 and newer.
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5 #
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6 # written by Fredrik Lundh, May 1997
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7 #
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8 # fixed initialcolor handling in August 1998
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9 #
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10
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11 #
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12 # options (all have default values):
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13 #
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14 # - initialcolor: colour to mark as selected when dialog is displayed
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15 # (given as an RGB triplet or a Tk color string)
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16 #
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17 # - parent: which window to place the dialog on top of
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18 #
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19 # - title: dialog title
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20 #
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21
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22 from tkCommonDialog import Dialog
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23
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24
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25 #
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26 # color chooser class
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27
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28 class Chooser(Dialog):
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29 "Ask for a color"
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30
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31 command = "tk_chooseColor"
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32
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33 def _fixoptions(self):
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34 try:
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35 # make sure initialcolor is a tk color string
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36 color = self.options["initialcolor"]
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37 if isinstance(color, tuple):
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38 # assume an RGB triplet
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39 self.options["initialcolor"] = "#%02x%02x%02x" % color
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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 # result can be somethings: an empty tuple, an empty string or
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45 # a Tcl_Obj, so this somewhat weird check handles that
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46 if not result or not str(result):
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47 return None, None # canceled
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48
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49 # to simplify application code, the color chooser returns
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50 # an RGB tuple together with the Tk color string
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51 r, g, b = widget.winfo_rgb(result)
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52 return (r/256, g/256, b/256), str(result)
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53
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54
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55 #
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56 # convenience stuff
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57
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58 def askcolor(color = None, **options):
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59 "Ask for a color"
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60
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61 if color:
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62 options = options.copy()
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63 options["initialcolor"] = color
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64
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65 return Chooser(**options).show()
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66
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67
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68 # --------------------------------------------------------------------
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69 # test stuff
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70
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71 if __name__ == "__main__":
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72 print "color", askcolor()