Source code for taurus.qt.qtgui.container.taurusscrollarea
#!/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 basic taurus scroll area widget
"""
from taurus.external.qt import Qt
from taurus.qt.qtgui.base import TaurusBaseComponent
from .taurusbasecontainer import TaurusBaseContainer
__docformat__ = "restructuredtext"
[docs]
class TaurusScrollArea(Qt.QScrollArea, TaurusBaseContainer):
"""This is a Qt.QScrollArea that additionally accepts a model property.
This type of taurus container classes are specially useful if you define a
parent taurus model to them and set all contained taurus widgets to use
parent model. Example::
from taurus.qt.qtgui.container import TaurusScrollArea
from taurus.qt.qtgui.display import TaurusLabel
widget = TaurusScrollArea()
layout = Qt.QVBoxLayout()
widget.setLayout(layout)
widget.model = 'sys/database/2'
stateWidget = TaurusLabel()
layout.addWidget(stateWidget)
stateWidget.model = 'sys/database/2/state'
"""
modelChanged = Qt.pyqtSignal("const QString &")
def __init__(self, parent=None, designMode=False):
name = self.__class__.__name__
self.call__init__wo_kw(Qt.QScrollArea, parent)
self.call__init__(TaurusBaseContainer, name, designMode=designMode)
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# Pending operations related methods
# -~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
[docs]
def getPendingOperations(self):
widget = self.widget()
if isinstance(widget, TaurusBaseComponent):
return widget.getPendingOperations()
return []
[docs]
def resetPendingOperations(self):
self.debug("Reset changes")
widget = self.widget()
if isinstance(widget, TaurusBaseComponent):
widget.resetPendingOperations()
[docs]
def hasPendingOperations(self):
widget = self.widget()
if isinstance(widget, TaurusBaseComponent):
return widget.hasPendingOperations()
return False
# -~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
# Public slots for apply/restore changes
# -~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
[docs]
@classmethod
def getQtDesignerPluginInfo(cls):
ret = TaurusBaseContainer.getQtDesignerPluginInfo()
if cls is TaurusScrollArea:
ret["module"] = "taurus.qt.qtgui.container"
ret["group"] = "Taurus Containers"
ret["icon"] = "designer:scrollarea.png"
ret["container"] = True
return ret
# -~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
# QT properties
# -~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
model = Qt.pyqtProperty(
"QString",
TaurusBaseContainer.getModel,
TaurusBaseContainer.setModel,
TaurusBaseContainer.resetModel,
)
#: (deprecated))
useParentModel = Qt.pyqtProperty(
"bool",
TaurusBaseContainer.getUseParentModel,
TaurusBaseContainer.setUseParentModel,
TaurusBaseContainer.resetUseParentModel,
)
showQuality = Qt.pyqtProperty(
"bool",
TaurusBaseContainer.getShowQuality,
TaurusBaseContainer.setShowQuality,
TaurusBaseContainer.resetShowQuality,
)
def demo():
"Scroll area"
w = Qt.QWidget()
w.setWindowTitle(Qt.QApplication.instance().applicationName())
layout = Qt.QGridLayout()
layout.setContentsMargins(0, 0, 0, 0)
w.setLayout(layout)
groupbox = TaurusScrollArea()
groupbox.model = "sys/tg_test/1"
layout.addWidget(groupbox)
layout = Qt.QFormLayout()
groupbox.setLayout(layout)
import taurus.qt.qtgui.display
state_led = taurus.qt.qtgui.display.TaurusLed()
state_led.model = groupbox.model + "/state"
status_label = taurus.qt.qtgui.display.TaurusLabel()
status_label.model = groupbox.model + "/status"
double_scalar_label = taurus.qt.qtgui.display.TaurusLabel()
double_scalar_label.model = groupbox.model + "/double_scalar"
layout.addRow("State:", state_led)
layout.addRow("Status:", status_label)
layout.addRow("Double scalar:", double_scalar_label)
w.show()
return w
def main():
import sys
import taurus.qt.qtgui.application
Application = taurus.qt.qtgui.application.TaurusApplication
app = Application.instance()
owns_app = app is None
if owns_app:
import taurus.core.util.argparse
parser = taurus.core.util.argparse.get_taurus_parser()
parser.usage = "%prog [options] <full_device_name(s)>"
app = Application(
sys.argv,
cmd_line_parser=parser,
app_name="Taurus frame demo",
app_version="1.0",
org_domain="Taurus",
org_name="Tango community",
)
args = app.get_command_line_args()
if len(args) == 0:
w = demo()
else:
models = map(str.lower, args)
w = Qt.QWidget()
w.setWindowTitle(app.applicationName())
layout = Qt.QGridLayout()
w.setLayout(layout)
for model in models:
groupbox = TaurusScrollArea()
groupbox.model = model
layout.addWidget(groupbox)
w.show()
if owns_app:
sys.exit(app.exec_())
else:
return w
if __name__ == "__main__":
main()