#!/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"""
__all__ = ["QtColorPalette",
"QT_DEVICE_STATE_PALETTE",
"QT_ATTRIBUTE_QUALITY_PALETTE",
]
__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.tango import DevState # TODO: Tango-centric
[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()
self._qvariant_cache_fg = dict()
self._qvariant_cache_bg = dict()
[docs] def qbrush(self, stoq):
# print 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 not f.has_key(name):
f[name] = Qt.QBrush(self.qcolor(stoq)[1])
if not b.has_key(name):
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 not f.has_key(name):
f[name] = Qt.QColor(self.number(name, True))
if not b.has_key(name):
b[name] = Qt.QColor(self.number(name))
return (b[name], f[name])
[docs] def qvariant(self, stoq):
"""Returns the color for the specified state or quality"""
name = self._decoder(stoq)
f = self._qvariant_cache_fg
b = self._qvariant_cache_bg
if not f.has_key(name):
(back, fore) = self.qcolor(name)
f[name] = Qt.QVariant(fore)
b[name] = Qt.QVariant(back)
return (b[name], f[name])
QT_DEVICE_STATE_PALETTE = QtColorPalette(DEVICE_STATE_DATA, DevState)
QT_ATTRIBUTE_QUALITY_PALETTE = QtColorPalette(ATTRIBUTE_QUALITY_DATA,
AttrQuality)