1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
#
# Instant Python
# $Id$
#
# tk common colour chooser dialogue
#
# this module provides an interface to the native color dialogue
# available in Tk 4.2 and newer.
#
# written by Fredrik Lundh, May 1997
#
# fixed initialcolor handling in August 1998
#
#
# options (all have default values):
#
# - initialcolor: colour to mark as selected when dialog is displayed
# (given as an RGB triplet or a Tk color string)
#
# - parent: which window to place the dialog on top of
#
# - title: dialog title
#
from tkCommonDialog import Dialog
#
# color chooser class
class Chooser(Dialog):
"Ask for a color"
command = "tk_chooseColor"
def _fixoptions(self):
try:
# make sure initialcolor is a tk color string
color = self.options["initialcolor"]
if type(color) == type(()):
# assume an RGB triplet
self.options["initialcolor"] = "#%02x%02x%02x" % color
except KeyError:
pass
def _fixresult(self, widget, result):
# to simplify application code, the color chooser returns
# an RGB tuple together with the Tk color string
if not result:
return None, None # canceled
r, g, b = widget.winfo_rgb(result)
return (r/256, g/256, b/256), result
#
# convenience stuff
def askcolor(color = None, **options):
"Ask for a color"
if color:
options = options.copy()
options["initialcolor"] = color
return apply(Chooser, (), options).show()
# --------------------------------------------------------------------
# test stuff
if __name__ == "__main__":
print "color", askcolor()