Q3DInputHandler Class
Basic wheel mouse based input handler. 更多...
| 头文件: | #include <Q3DInputHandler> |
| 开始支持版本: | QtDataVisualization 1.0 |
| Instantiated By: | InputHandler3D |
| 基类: | QAbstract3DInputHandler |
| 派生类: |
属性
- rotationEnabled : bool
- selectionEnabled : bool
- zoomAtTargetEnabled : bool
- zoomEnabled : bool
- 3 个属性继承自 QAbstract3DInputHandler
- 1 个属性继承自 QObject
公有函数
| Q3DInputHandler(QObject *parent = Q_NULLPTR) | |
| virtual | ~Q3DInputHandler() |
| bool | isRotationEnabled() const |
| bool | isSelectionEnabled() const |
| bool | isZoomAtTargetEnabled() const |
| bool | isZoomEnabled() const |
| void | setRotationEnabled(bool enable) |
| void | setSelectionEnabled(bool enable) |
| void | setZoomAtTargetEnabled(bool enable) |
| void | setZoomEnabled(bool enable) |
重新实现的公有函数
| virtual void | mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos) |
| virtual void | mousePressEvent(QMouseEvent *event, const QPoint &mousePos) |
| virtual void | mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos) |
| virtual void | wheelEvent(QWheelEvent *event) |
- 12 个公有函数继承自 QAbstract3DInputHandler
- 32 个公有函数继承自 QObject
信号
| void | rotationEnabledChanged(bool enable) |
| void | selectionEnabledChanged(bool enable) |
| void | zoomAtTargetEnabledChanged(bool enable) |
| void | zoomEnabledChanged(bool enable) |
- 3 个信号继承自 QAbstract3DInputHandler
- 2 个信号继承自 QObject
其他继承的成员
- 1 个公有槽函数继承自 QObject
- 1 个公有变量继承自 QObject
- 10 个静态公有成员继承自 QObject
- 4 个受保护的函数继承自 QAbstract3DInputHandler
- 9 个受保护的函数继承自 QObject
- 2 个受保护的变量继承自 QObject
详细描述
Basic wheel mouse based input handler.
Q3DInputHandler is the basic input handler for wheel mouse type of input devices.
Default input handler has the following functionalty:
| Mouse action | Action |
|---|---|
| Drag with right button pressed | Rotate graph within limits set for Q3DCamera. |
| Left click | Select item under cursor or remove selection if none. May open the secondary view depending on the selection mode. |
| Mouse wheel | Zoom in/out within the allowable zoom range set for Q3DCamera. |
| Left click on the primary view when the secondary view is visible | Closes the secondary view. Note: Secondary view is available only for Q3DBars and Q3DSurface graphs. |
Rotation, zoom, and selection can each be individually disabled using corresponding properties of this class.
属性
rotationEnabled : bool
This property holds whether this input handler allows graph rotation.
Defaults to true.
This property was introduced in QtDataVisualization 1.2.
访问函数:
| bool | isRotationEnabled() const |
| void | setRotationEnabled(bool enable) |
Notifier signal:
| void | rotationEnabledChanged(bool enable) |
selectionEnabled : bool
This property holds whether this input handler allows selection from the graph.
Defaults to true.
This property was introduced in QtDataVisualization 1.2.
访问函数:
| bool | isSelectionEnabled() const |
| void | setSelectionEnabled(bool enable) |
Notifier signal:
| void | selectionEnabledChanged(bool enable) |
zoomAtTargetEnabled : bool
This property holds whether zooming should change the camera target so that the zoomed point of the graph stays at the same location after the zoom.
Defaults to true.
This property was introduced in QtDataVisualization 1.2.
访问函数:
| bool | isZoomAtTargetEnabled() const |
| void | setZoomAtTargetEnabled(bool enable) |
Notifier signal:
| void | zoomAtTargetEnabledChanged(bool enable) |
zoomEnabled : bool
This property holds whether this input handler allows graph zooming.
Defaults to true.
This property was introduced in QtDataVisualization 1.2.
访问函数:
| bool | isZoomEnabled() const |
| void | setZoomEnabled(bool enable) |
Notifier signal:
| void | zoomEnabledChanged(bool enable) |
成员函数
Q3DInputHandler::Q3DInputHandler(QObject *parent = Q_NULLPTR)
Constructs the basic mouse input handler. An optional parent parameter can be given and is then passed to QObject constructor.
[virtual] Q3DInputHandler::~Q3DInputHandler()
Destroys the input handler.
[virtual] void Q3DInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos)
Reimplemented from QAbstract3DInputHandler::mouseMoveEvent().
Override this to change handling of mouse move events. Mouse move event is given in the event and the mouse position in mousePos.
[virtual] void Q3DInputHandler::mousePressEvent(QMouseEvent *event, const QPoint &mousePos)
Reimplemented from QAbstract3DInputHandler::mousePressEvent().
Override this to change handling of mouse press events. Mouse press event is given in the event and the mouse position in mousePos.
[virtual] void Q3DInputHandler::mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos)
Reimplemented from QAbstract3DInputHandler::mouseReleaseEvent().
Override this to change handling of mouse release events. Mouse release event is given in the event and the mouse position in mousePos.
[virtual] void Q3DInputHandler::wheelEvent(QWheelEvent *event)
Reimplemented from QAbstract3DInputHandler::wheelEvent().
Override this to change handling of wheel events. The wheel event is given in the event.