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# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2004-2018 European Synchrotron Radiation Facility
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# ###########################################################################*/
"""Action to hold many mode actions, usually for a tool bar.
"""
__authors__ = ["V. Valls"]
__license__ = "MIT"
__data__ = "22/04/2020"
from silx.gui import qt
class MultiModeAction(qt.QWidgetAction):
"""This action provides a default checkable action from a list of checkable
actions.
The default action can be selected from a drop down list. The last one used
became the default one.
The default action is directly usable without using the drop down list.
"""
def __init__(self, parent=None):
assert isinstance(parent, qt.QWidget)
qt.QWidgetAction.__init__(self, parent)
button = qt.QToolButton(parent)
button.setPopupMode(qt.QToolButton.MenuButtonPopup)
self.setDefaultWidget(button)
self.__button = button
def getMenu(self):
"""Returns the menu.
:rtype: qt.QMenu
"""
button = self.__button
menu = button.menu()
if menu is None:
menu = qt.QMenu(button)
button.setMenu(menu)
return menu
def addAction(self, action):
"""Add a new action to the list.
:param qt.QAction action: New action
"""
menu = self.getMenu()
button = self.__button
menu.addAction(action)
if button.defaultAction() is None:
button.setDefaultAction(action)
if action.isCheckable():
action.toggled.connect(self._toggled)
def _toggled(self, checked):
if checked:
action = self.sender()
button = self.__button
button.setDefaultAction(action)
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