def eventFilter(self, obj, event):
if obj == self.tabBar():
if event.type() == QEvent.MouseButtonPress and event.buttons(
) == Qt.LeftButton:
# can start tab drag only if mouse is at some tab, not at empty tabbar space
if self.tabBar().tabAt(event.pos()) >= 0:
self.tabDragCanStart = True
else:
self.dragCanStart = True
elif event.type() == QEvent.MouseButtonRelease:
self.tabDragCanStart = False
self.dragCanStart = False
self.manager.updateDragPosition()
elif event.type() == QEvent.MouseMove:
self.manager.updateDragPosition()
if self.tabDragCanStart:
if self.tabBar().rect().contains(event.pos()):
return False
if event.buttons() != Qt.LeftButton:
return False
toolWindow = self.currentWidget()
if not (toolWindow
and self.manager.hasToolWindow(toolWindow)):
return False
self.tabDragCanStart = False
#stop internal tab drag in QTabBar
releaseEvent = QtGui.QMouseEvent(QEvent.MouseButtonRelease,
event.pos(),
Qt.LeftButton,
Qt.LeftButton,
Qt.NoModifier)
QApplication.sendEvent(self.tabBar(), releaseEvent)
self.manager.startDrag([toolWindow])
elif self.dragCanStart:
self.check_mouse_move(event)
return QTabWidget.eventFilter(self, obj, event)
