73 lines
1.7 KiB
Python
73 lines
1.7 KiB
Python
|
#
|
||
|
|
# 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
|
||
|
|
#
|
||
|
|
|
||
|
|
#
|
||
|
|
# 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
|
||
|
|
#
|
||
|
|
|
||
|
|
# FIXME: as of Tk 8.0a2, the Unix colour picker is really ugly, and
|
||
|
|
# doesn't seem to work properly on a true colour display. maybe we
|
||
|
|
# should use the instant python version instead?
|
||
|
|
|
||
|
|
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 # cancelled
|
||
|
|
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"
|
||
|
|
|
||
|
|
return apply(Chooser, (), options).show()
|
||
|
|
|
||
|
|
|
||
|
|
# --------------------------------------------------------------------
|
||
|
|
# test stuff
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
|
||
|
|
print "color", askcolor()
|