def GLColor(color):
"""Convert a color to an OpenGL RGB color.
The output is a tuple of three RGB float values ranging from 0.0 to 1.0.
The input can be any of the following:
- a string specifying the Xwindow name of the color
- a QColor
- a tuple or list of 3 int values 0..255
- a tuple or list of 3 float values 0.0..1.0
Any other input may give unpredictable results.
"""
if type(color) == str:
color = QColor(color)
if isinstance(color,QColor):
color = (color.red(),color.green(),color.blue())
if len(color) == 3:
if type(color[0]) == int:
color = [ c/255. for c in color ]
if type(color[0]) == float:
return tuple(color)
raise RuntimeError,"GLColor: unexpected input %s" % color
