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#!/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/>.
##
#############################################################################
"""
taurusvaluestable.py:
"""
__all__ = ["TaurusValuesTable_OLD"]
__docformat__ = 'restructuredtext'
import numpy
from taurus.external.qt import Qt
import PyTango
import taurus.core
from taurus.core.util.colors import ATTRIBUTE_QUALITY_PALETTE
from taurus.qt.qtgui.base import TaurusBaseWidget
class TaurusValuesTable_OLD(Qt.QTableWidget, TaurusBaseWidget):
'''This widget gets spectra or images as model and shows a table containing
the values in the model
.. warning:: this is an old Read-only implementation of `TaurusValuesTable`.
Use the newer implentation (which allows editing).
This one is here only for compatibility and will be eventually
removed.
'''
__pyqtSignals__ = ("modelChanged(const QString &)",)
def __init__(self, parent = None, designMode = False):
name = self.__class__.__name__
self.call__init__wo_kw(Qt.QTableWidget, parent)
self.call__init__(TaurusBaseWidget, name, designMode=designMode)
#@TODO add event filter once the backwards compatibility is not needed
self.setEditTriggers(self.NoEditTriggers) #the table is non-editable by default
self.setShowQuality(False) #by default it does not show the quality on background
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
# TaurusBaseWidget overwriting
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
def getModelClass(self):
return taurus.core.taurusattribute.TaurusAttribute
def isReadOnly(self):
return True
def handleEvent(self, src, evt_type, val):
if evt_type in [taurus.core.taurusbasetypes.TaurusEventType.Change, taurus.core.taurusbasetypes.TaurusEventType.Periodic] and val is not None:
values=numpy.array(val.value)
#reshape the table
if val.data_format == PyTango.AttrDataFormat.SPECTRUM:
rows, columns = values.size, 1
elif val.data_format == PyTango.AttrDataFormat.IMAGE:
rows, columns = values.shape
else:
self.warning('unsupported data format %s'%str(val.data_format))
return
self.setRowCount(rows)
self.setColumnCount(columns)
#fill the table
values = values.reshape(rows,columns) #make sure it is in matrix form (not a vector)
for j in xrange(columns):
for i in xrange(rows):
self.setItem(i,j,Qt.QTableWidgetItem(str(values[i,j])) ) #extremely inefficient!! #@TODO
self.updateStyle()
def eventHandle(self, *args):
'''Only here for backwards compatibility. It will disapear soon. Not supported'''
self.info('using deprecated event handling methods.')
model = self.getModelObj()
val = model.getValueObj()
self.handleEvent(model, taurus.core.taurusbasetypes.TaurusEventType.Change, val)
def updateStyle(self):
if self.getShowQuality():
val = self.getModelValueObj()
quality = getattr(val, 'quality', None)
stylesheet = "TaurusValuesTable {%s}"%ATTRIBUTE_QUALITY_PALETTE.qtStyleSheet(quality)
else:
stylesheet = "TaurusValuesTable {}"
self.setStyleSheet(stylesheet)
self.resizeColumnsToContents()
self.horizontalHeader().setStretchLastSection(True)
def setModel(self, model):
if isinstance(model, Qt.QAbstractItemModel):
return Qt.QTableWidget.setModel(self, model)
return TaurusBaseWidget.setModel(self, model)
# @classmethod
# def getQtDesignerPluginInfo(cls):
# ret = TaurusBaseWidget.getQtDesignerPluginInfo()
# ret['module'] = 'taurus.qt.qtgui.table'
# ret['group'] = 'Taurus Views'
# ret['icon'] = ":/designer/table.png"
# return ret
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
# QT property definition
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
model = Qt.pyqtProperty("QString", TaurusBaseWidget.getModel,
TaurusBaseWidget.setModel,
TaurusBaseWidget.resetModel)
useParentModel = Qt.pyqtProperty("bool",
TaurusBaseWidget.getUseParentModel,
TaurusBaseWidget.setUseParentModel,
TaurusBaseWidget.resetUseParentModel)
showQuality = Qt.pyqtProperty("bool",
TaurusBaseWidget.getShowQuality,
TaurusBaseWidget.setShowQuality,
TaurusBaseWidget.resetShowQuality)
if __name__ == '__main__':
import sys
app = Qt.QApplication([])
if len(sys.argv) == 2:
model = sys.argv[1]
else:
model = 'bl97/pysignalsimulator/1/value1'
w = TaurusValuesTable()
w.setModel(model)
w.setShowQuality(True)
w.show()
sys.exit(app.exec_())
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