def mousePressEvent(self, event):
""" Handle the mouse press event for the tab bar.
This handler will set the internal '_has_mouse' flag if the
left mouse button is pressed on a tab.
"""
super(QDockTabBar, self).mousePressEvent(event)
self._has_mouse = False
if event.button() == Qt.LeftButton:
if self.tabAt(event.pos()) != -1:
self._has_mouse = True
elif event.button() == Qt.RightButton:
index = self.tabAt(event.pos())
if index != -1:
button = self.tabButton(index, QTabBar.RightSide)
if button.geometry().contains(event.pos()):
return
item = self.parent().widget(index).dockItem()
item.titleBarRightClicked.emit(event.globalPos())
# Emitting the clicked signal may have caused a popup
# menu to open, which will have grabbed the mouse. When
# this happens, the hover leave event is not sent and
# the tab bar will be stuck in the hovered paint state.
# Manual checking as 'underMouse' yields False negatives.
p = self.mapFromGlobal(QCursor.pos())
if not self.rect().contains(p):
QApplication.sendEvent(self, QEvent(QEvent.HoverLeave))
def do_drag(self, widget):
"""Perform the drag operation for the widget.
Parameters
----------
widget: QWidget
A reference to the viewport widget.
"""
drag_data = self.declaration.drag_start()
if drag_data is None:
return
# widget = self.widget
qdrag = QDrag(widget)
qdrag.setMimeData(drag_data.mime_data.q_data())
if drag_data.image is not None:
qimg = get_cached_qimage(drag_data.image)
qdrag.setPixmap(QPixmap.fromImage(qimg))
# else:
# if __version_info__ < (5, ):
# qdrag.setPixmap(QPixmap.grabWidget(self.widget))
# else:
# qdrag.setPixmap(widget.grab())
if drag_data.hotspot:
qdrag.setHotSpot(QPoint(*drag_data.hotspot))
else:
cursor_position = widget.mapFromGlobal(QCursor.pos())
qdrag.setHotSpot(cursor_position)
default = Qt.DropAction(drag_data.default_drop_action)
supported = Qt.DropActions(drag_data.supported_actions)
qresult = qdrag.exec_(supported, default)
self.declaration.drag_end(drag_data, DropAction(int(qresult)))
def mousePressEvent(self, event):
""" Handle the mouse press event for the tab bar.
This handler will set the internal '_has_mouse' flag if the
left mouse button is pressed on a tab.
"""
super(QDockTabBar, self).mousePressEvent(event)
self._has_mouse = False
if event.button() == Qt.LeftButton:
index = self.tabAt(event.pos())
if index != -1:
self._has_mouse = True
data = self._tab_data[index]
container = data.container
if container is not None:
# likey a no-op, but just in case
container.dockItem().clearAlert()
elif event.button() == Qt.RightButton:
index = self.tabAt(event.pos())
if index != -1:
button = self.tabButton(index, QTabBar.RightSide)
if button.geometry().contains(event.pos()):
return
item = self.parent().widget(index).dockItem()
item.titleBarRightClicked.emit(event.globalPos())
# Emitting the clicked signal may have caused a popup
# menu to open, which will have grabbed the mouse. When
# this happens, the hover leave event is not sent and
# the tab bar will be stuck in the hovered paint state.
# Manual checking as 'underMouse' yields False negatives.
p = self.mapFromGlobal(QCursor.pos())
if not self.rect().contains(p):
QApplication.sendEvent(self, QEvent(QEvent.HoverLeave))
def _releaseFrame(self):
""" A helper method which releases the frame grab.
Returns
-------
result : bool
True if the frame was released, False otherwise.
"""
state = self.frame_state
if state.press_pos is not None:
self.releaseMouse()
if self.isWindow():
self.manager().drag_release_frame(self, QCursor.pos())
state.dragging = False
state.press_pos = None
state.start_pos = None
return True
return False
def _releaseFrame(self):
""" A helper method which releases the frame grab.
Returns
-------
result : bool
True if the frame was released, False otherwise.
"""
state = self.frame_state
if state.press_pos is not None:
self.releaseMouse()
if self.isWindow():
self.manager().drag_release_frame(self, QCursor.pos())
state.dragging = False
state.press_pos = None
state.start_pos = None
return True
return False
def _onCornerTabsButtonClicked(self, event):
""" Opens a context menu that lists all tabs.
"""
context_menu = QCustomMenu(self)
context_menu.setContextMenu(True)
current_index = self.currentIndex()
for i in range(self.count()):
tab = self.widget(i)
if tab is not None:
action = context_menu.addAction(tab.title())
action.setCheckable(True)
action.setChecked(i == current_index)
icon = self.tabIcon(i)
if icon is not None:
# FIXME This overlays the icon over the checkbox
action.setIcon(icon)
action.setData(i)
action = context_menu.exec_(QCursor.pos())
if action is not None:
i = action.data()
self.setCurrentIndex(i)
context_menu.setContextMenu(False)
del context_menu
