# tk common color 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: color 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 isinstance(color, tuple): # assume an RGB triplet self.options["initialcolor"] = "#%02x%02x%02x" % color except KeyError: pass def _fixresult(self, widget, result): # result can be somethings: an empty tuple, an empty string or # a Tcl_Obj, so this somewhat weird check handles that if not result or not str(result): return None, None # canceled # to simplify application code, the color chooser returns # an RGB tuple together with the Tk color string r, g, b = widget.winfo_rgb(result) return (r/256, g/256, b/256), str(result) # # convenience stuff def askcolor(color = None, **options): "Ask for a color" if color: options = options.copy() options["initialcolor"] = color return Chooser(**options).show() # -------------------------------------------------------------------- # test stuff if __name__ == "__main__": print "color", askcolor()