Source code for taurus.qt.qtgui.input.tauruswheel
#!/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 a set of basic taurus widgets based on QWheelEdit"""
__all__ = ["TaurusWheelEdit" ]
__docformat__ = 'restructuredtext'
import taurus
from taurus.external.qt import Qt
from taurus.core.taurusbasetypes import TaurusEventType
from taurus.qt.qtgui.base import TaurusBaseWritableWidget
from qwheel import QWheelEdit
[docs]class TaurusWheelEdit(QWheelEdit, TaurusBaseWritableWidget):
__pyqtSignals__ = ('modelChanged(const QString &)',)
def __init__(self, qt_parent = None, designMode = False):
name = self.__class__.__name__
self.call__init__wo_kw(QWheelEdit, qt_parent)
self.call__init__(TaurusBaseWritableWidget, name, designMode=designMode)
self.connect(self, Qt.SIGNAL(QWheelEdit.NumberChangedStr), self.valueChanged)
self.connect(self, Qt.SIGNAL('returnPressed()'), self.writeValue)
self.connect(self, Qt.SIGNAL('valueChanged'), self.updatePendingOperations)
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# TaurusBaseWidget overwriting
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[docs] def handleEvent(self, evt_src, evt_type, evt_value):
if evt_type == TaurusEventType.Config and evt_value is not None:
import re
# match the format string to "%[width][.precision][f_type]"
m = re.match(r'%([0-9]+)?(\.([0-9]+))?([df])', evt_value.format)
if m is None:
raise ValueError("'%s' format unsupported" % evt_value.format)
width, _, precision, f_type = m.groups()
if width is None:
width = self.DefaultIntDigitCount + \
self.DefaultDecDigitCount + 1
else:
width = int(width)
if precision is None:
precision = self.DefaultDecDigitCount
else:
precision = int(precision)
dec_nb = precision
if dec_nb == 0 or f_type == 'd':
int_nb = width
else:
int_nb = width - dec_nb - 1 # account for decimal sep
self.setDigitCount(int_nb=int_nb, dec_nb=dec_nb)
try:
self.setMinValue(float(evt_value.min_value))
except:
pass
try:
self.setMaxValue(float(evt_value.max_value))
except:
pass
TaurusBaseWritableWidget.handleEvent(self, evt_src, evt_type, evt_value)
[docs] def updateStyle(self):
TaurusBaseWritableWidget.updateStyle(self)
if self.hasPendingOperations():
self.setStyleSheet('QWheelEdit {border: 2px solid; border-radius: 4px; border-color: blue}')
else:
self.setStyleSheet('QWheelEdit {border: 2px solid; border-radius: 4px; border-color: rgba(0,0,255,0)}')
@classmethod
[docs] def getQtDesignerPluginInfo(cls):
ret = TaurusBaseWritableWidget.getQtDesignerPluginInfo()
ret['module'] = 'taurus.qt.qtgui.input'
ret['icon'] = ":/designer/wheeledit.png"
return ret
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# QT properties
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
model = Qt.pyqtProperty("QString", TaurusBaseWritableWidget.getModel,
TaurusBaseWritableWidget.setModel,
TaurusBaseWritableWidget.resetModel)
useParentModel = Qt.pyqtProperty("bool", TaurusBaseWritableWidget.getUseParentModel,
TaurusBaseWritableWidget.setUseParentModel,
TaurusBaseWritableWidget.resetUseParentModel)
autoApply = Qt.pyqtProperty("bool", TaurusBaseWritableWidget.getAutoApply,
TaurusBaseWritableWidget.setAutoApply,
TaurusBaseWritableWidget.resetAutoApply)
forcedApply = Qt.pyqtProperty("bool", TaurusBaseWritableWidget.getForcedApply,
TaurusBaseWritableWidget.setForcedApply,
TaurusBaseWritableWidget.resetForcedApply)