1 files changed, 90 insertions, 0 deletions
diff --git a/silx/gui/widgets/BoxLayoutDockWidget.py b/silx/gui/widgets/BoxLayoutDockWidget.py
new file mode 100644
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+++ b/silx/gui/widgets/BoxLayoutDockWidget.py
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+# coding: utf-8
+# /*##########################################################################
+#
+# Copyright (c) 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.
+#
+# ###########################################################################*/
+"""A QDockWidget that update the layout direction of its widget
+"""
+
+__authors__ = ["T. Vincent"]
+__license__ = "MIT"
+__date__ = "06/03/2018"
+
+
+from .. import qt
+
+
+class BoxLayoutDockWidget(qt.QDockWidget):
+    """QDockWidget adjusting its child widget QBoxLayout direction.
+
+    The child widget layout direction is set according to dock widget area.
+    The child widget MUST use a QBoxLayout
+
+    :param parent: See :class:`QDockWidget`
+    :param flags: See :class:`QDockWidget`
+    """
+
+    def __init__(self, parent=None, flags=qt.Qt.Widget):
+        super(BoxLayoutDockWidget, self).__init__(parent, flags)
+        self._currentArea = qt.Qt.NoDockWidgetArea
+        self.dockLocationChanged.connect(self._dockLocationChanged)
+        self.topLevelChanged.connect(self._topLevelChanged)
+
+    def setWidget(self, widget):
+        """Set the widget of this QDockWidget
+
+        See :meth:`QDockWidget.setWidget`
+        """
+        super(BoxLayoutDockWidget, self).setWidget(widget)
+        # Update widget's layout direction
+        self._dockLocationChanged(self._currentArea)
+
+    def _dockLocationChanged(self, area):
+        self._currentArea = area
+
+        widget = self.widget()
+        if widget is not None:
+            layout = widget.layout()
+            if isinstance(layout, qt.QBoxLayout):
+                if area in (qt.Qt.LeftDockWidgetArea, qt.Qt.RightDockWidgetArea):
+                    direction = qt.QBoxLayout.TopToBottom
+                else:
+                    direction = qt.QBoxLayout.LeftToRight
+                layout.setDirection(direction)
+                self.resize(widget.minimumSize())
+                self.adjustSize()
+
+    def _topLevelChanged(self, topLevel):
+        widget = self.widget()
+        if widget is not None and topLevel:
+            layout = widget.layout()
+            if isinstance(layout, qt.QBoxLayout):
+                layout.setDirection(qt.QBoxLayout.LeftToRight)
+                self.resize(widget.minimumSize())
+                self.adjustSize()
+
+    def showEvent(self, event):
+        """Make sure this dock widget is raised when it is shown.
+
+        This is useful for tabbed dock widgets.
+        """
+        self.raise_()