PySide.QtGui.QMouseEvent class contains parameters that describe a mouse event.
Mouse events occur when a mouse button is pressed or released inside a widget, or when the mouse cursor is moved.
Mouse move events will occur only when a mouse button is pressed down, unless mouse tracking has been enabled with QWidget.setMouseTracking() .
Qt automatically grabs the mouse when a mouse button is pressed inside a widget; the widget will continue to receive mouse events until the last mouse button is released.
A mouse event contains a special accept flag that indicates whether the receiver wants the event. You should call PySide.QtCore.QEvent.ignore() if the mouse event is not handled by your widget. A mouse event is propagated up the parent widget chain until a widget accepts it with PySide.QtCore.QEvent.accept() , or an event filter consumes it.
注意
If a mouse event is propagated to a widget 其中 Qt.WA_NoMousePropagation has been set, that mouse event will not be propagated further up the parent widget chain.
The state of the keyboard modifier keys can be found by calling the PySide.QtGui.QInputEvent.modifiers() function, inherited from PySide.QtGui.QInputEvent .
函数 PySide.QtGui.QMouseEvent.pos() , PySide.QtGui.QMouseEvent.x() ，和 PySide.QtGui.QMouseEvent.y() give the cursor position relative to the widget that receives the mouse event. If you move the widget as a result of the mouse event, use the global position returned by PySide.QtGui.QMouseEvent.globalPos() to avoid a shaking motion.
QWidget.setEnabled() function can be used to enable or disable mouse and keyboard events for a widget.
重实现 PySide.QtGui.QWidget 事件处理程序， QWidget.mousePressEvent() , QWidget.mouseReleaseEvent() , QWidget.mouseDoubleClickEvent() ，和 QWidget.mouseMoveEvent() to receive mouse events in your own widgets.
| 参数： |
|
|---|
| 返回类型： | PySide.QtCore.Qt.MouseButton |
|---|
返回导致事件的按钮。
注意：返回值始终是 Qt.NoButton 对于鼠标移动事件而言。
另请参阅
PySide.QtGui.QMouseEvent.buttons() Qt.MouseButton
| 返回类型： | PySide.QtCore.Qt.MouseButtons |
|---|
Returns the button state when the event was generated. The button state is a combination of Qt.LeftButton , Qt.RightButton , Qt.MidButton using the OR operator. For mouse move events, this is all buttons that are pressed down. For mouse press and double click events this includes the button that caused the event. For mouse release events this excludes the button that caused the event.
另请参阅
PySide.QtGui.QMouseEvent.button() Qt.MouseButton
| 参数： |
|
|---|---|
| 返回类型： |
| 返回类型： | PySide.QtCore.QPoint |
|---|
Returns the global position of the mouse cursor at the time of the event . This is important on asynchronous window systems like X11. Whenever you move your widgets around in response to mouse events, PySide.QtGui.QMouseEvent.globalPos() may differ a lot from the current pointer position QCursor.pos() , and from QWidget::mapToGlobal( PySide.QtGui.QMouseEvent.pos() ).
| 返回类型： | PySide.QtCore.int |
|---|
Returns the global x position of the mouse cursor at the time of the event.
| 返回类型： | PySide.QtCore.int |
|---|
Returns the global y position of the mouse cursor at the time of the event.
| 返回类型： | PySide.QtCore.bool |
|---|
| 返回类型： | PySide.QtCore.QPoint |
|---|
Returns the position of the mouse cursor, relative to the widget that received the event.
If you move the widget as a result of the mouse event, use the global position returned by PySide.QtGui.QMouseEvent.globalPos() to avoid a shaking motion.
| 返回类型： | PySide.QtCore.QPointF |
|---|
Returns the position of the mouse cursor as a PySide.QtCore.QPointF , relative to the widget that received the event.
If you move the widget as a result of the mouse event, use the global position returned by PySide.QtGui.QMouseEvent.globalPos() to avoid a shaking motion.
| 返回类型： | PySide.QtCore.int |
|---|
Returns the x position of the mouse cursor, relative to the widget that received the event.
| 返回类型： | PySide.QtCore.int |
|---|
Returns the y position of the mouse cursor, relative to the widget that received the event.
