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
|
# -*- coding: utf-8 -*-
#
# Licensed under the terms of the MIT License
# Copyright (c) 2015 Pierre Raybaut
# (see LICENSE file for more details)
"""Qt helpers"""
from qtpy import QtGui as QG
from qtpy.QtCore import Qt
def qcolor_from_str(color, default):
"""Return QColor object from str
:param color: Input color
:type color: QColor or str or None
:param QColor default: Default color (returned if color is None)
If color is already a QColor instance, simply return color.
If color is None, return default color.
If color is neither an str nor a QColor instance nor None, raise TypeError.
"""
if color is None:
return default
elif isinstance(color, str):
try:
return getattr(Qt, color)
except AttributeError:
raise ValueError("Unknown Qt color %r" % color)
else:
try:
return QG.QColor(color)
except TypeError:
raise TypeError("Invalid color %r" % color)
|
