#!/usr/bin/env python
# ###########################################################################
#
# This file is part of Taurus
#
# http://taurus-scada.org
#
# Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
#
# Taurus is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Taurus is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Taurus. If not, see <http://www.gnu.org/licenses/>.
#
# ###########################################################################
"""This module provides Qt color management for taurus
"""
__docformat__ = "restructuredtext"
from taurus.external.qt import Qt
from taurus.core.util.colors import (
ColorPalette,
DEVICE_STATE_DATA,
ATTRIBUTE_QUALITY_DATA,
)
from taurus.core.taurusbasetypes import AttrQuality
from taurus.core.util.log import deprecation_decorator
[docs]
class QtColorPalette(ColorPalette):
def __init__(self, dat, int_decoder_dict):
ColorPalette.__init__(self, dat, int_decoder_dict)
self._qcolor_cache_fg = dict()
self._qcolor_cache_bg = dict()
self._qbrush_cache_fg = dict()
self._qbrush_cache_bg = dict()
[docs]
def qbrush(self, stoq):
"""Returns the brush for the specified state or quality"""
name = self._decoder(stoq)
f = self._qbrush_cache_fg
b = self._qbrush_cache_bg
if name not in f:
f[name] = Qt.QBrush(self.qcolor(stoq)[1])
if name not in b:
b[name] = Qt.QBrush(self.qcolor(stoq)[0])
if name == "None":
b[name].setStyle(Qt.Qt.BDiagPattern)
return (b[name], f[name])
[docs]
def qcolor(self, stoq):
"""Returns the color for the specified state or quality"""
name = self._decoder(stoq)
f = self._qcolor_cache_fg
b = self._qcolor_cache_bg
if name not in f:
f[name] = Qt.QColor(self.number(name, True))
if name not in b:
b[name] = Qt.QColor(self.number(name))
return (b[name], f[name])
@deprecation_decorator(alt="QtColorPalette.qcolor()", rel="4.5")
def qvariant(self, stoq):
"""Returns the color for the specified state or quality"""
return self.qcolor(stoq)
QT_ATTRIBUTE_QUALITY_PALETTE = QtColorPalette(
ATTRIBUTE_QUALITY_DATA, AttrQuality
)
try:
# TODO: Tango-centric
from taurus.core.tango import DevState
QT_DEVICE_STATE_PALETTE = QtColorPalette(DEVICE_STATE_DATA, DevState)
except ImportError:
QT_DEVICE_STATE_PALETTE = QtColorPalette(DEVICE_STATE_DATA, {})