1 files changed, 83 insertions, 0 deletions
diff --git a/src/silx/gui/widgets/MultiModeAction.py b/src/silx/gui/widgets/MultiModeAction.py
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+++ b/src/silx/gui/widgets/MultiModeAction.py
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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)