QAbstract3DInputHandler Class
The base class for implementations of input handlers. 更多...
| 头文件: | #include <QAbstract3DInputHandler> |
| 开始支持版本: | QtDataVisualization 1.0 |
| Instantiated By: | AbstractInputHandler3D |
| 基类: | QObject |
| 派生类: |
公有类型
| enum | InputView { InputViewNone, InputViewOnPrimary, InputViewOnSecondary } |
属性
- inputPosition : QPoint
- inputView : InputView
- scene : Q3DScene *
- 1 个属性继承自 QObject
公有函数
| virtual | ~QAbstract3DInputHandler() |
| QPoint | inputPosition() const |
| InputView | inputView() const |
| virtual void | mouseDoubleClickEvent(QMouseEvent *event) |
| virtual void | mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos) |
| virtual void | mousePressEvent(QMouseEvent *event, const QPoint &mousePos) |
| virtual void | mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos) |
| Q3DScene * | scene() const |
| void | setInputPosition(const QPoint &position) |
| void | setInputView(InputView inputView) |
| void | setScene(Q3DScene *scene) |
| virtual void | touchEvent(QTouchEvent *event) |
| virtual void | wheelEvent(QWheelEvent *event) |
- 32 个公有函数继承自 QObject
信号
| void | inputViewChanged(QAbstract3DInputHandler::InputView view) |
| void | positionChanged(const QPoint &position) |
| void | sceneChanged(Q3DScene *scene) |
- 2 个信号继承自 QObject
受保护的函数
| QAbstract3DInputHandler(QObject *parent = Q_NULLPTR) | |
| int | prevDistance() const |
| QPoint | previousInputPos() const |
| void | setPrevDistance(int distance) |
| void | setPreviousInputPos(const QPoint &position) |
- 9 个受保护的函数继承自 QObject
其他继承的成员
详细描述
The base class for implementations of input handlers.
QAbstract3DInputHandler is the base class that is subclassed by different input handling implementations that take input events and translate those to camera and light movements. Input handlers also translate raw input events to slicing and selection events in the scene.
成员类型
enum QAbstract3DInputHandler::InputView
Predefined input views for mouse and touch based input handlers.
| Constant | Value | Description |
|---|---|---|
QAbstract3DInputHandler::InputViewNone | 0 | Mouse or touch not on a view. |
QAbstract3DInputHandler::InputViewOnPrimary | 1 | Mouse or touch input received on the primary view area. If secondary view is displayed when inputView becomes InputViewOnPrimary, secondary view is closed. |
QAbstract3DInputHandler::InputViewOnSecondary | 2 | Mouse or touch input received on the secondary view area. |
属性
inputPosition : QPoint
This property holds the last input position based on the processed input events.
访问函数:
| QPoint | inputPosition() const |
| void | setInputPosition(const QPoint &position) |
Notifier signal:
| void | positionChanged(const QPoint &position) |
inputView : InputView
This property holds the current enumerated input view based on the view of the processed input events.
One of the InputView enum values.
When the view changes, the inputViewChanged signal is emitted.
访问函数:
| InputView | inputView() const |
| void | setInputView(InputView inputView) |
Notifier signal:
| void | inputViewChanged(QAbstract3DInputHandler::InputView view) |
参见 InputView.
scene : Q3DScene *
This property holds the 3D scene this abstract input handler is controlling.
One input handler can control one scene. Setting a scene to an input handler does not transfer the ownership of the scene.
访问函数:
| Q3DScene * | scene() const |
| void | setScene(Q3DScene *scene) |
Notifier signal:
| void | sceneChanged(Q3DScene *scene) |
成员函数
[protected] QAbstract3DInputHandler::QAbstract3DInputHandler(QObject *parent = Q_NULLPTR)
Constructs the base class. An optional parent parameter can be given and is then passed to QObject constructor.
[virtual] QAbstract3DInputHandler::~QAbstract3DInputHandler()
Destroys the base class.
[virtual] void QAbstract3DInputHandler::mouseDoubleClickEvent(QMouseEvent *event)
Override this to handle mouse double click events. Mouse double click event is given in the event.
[virtual] void QAbstract3DInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos)
Override this to handle mouse move events. Mouse move event is given in the event and the mouse position in mousePos.
[virtual] void QAbstract3DInputHandler::mousePressEvent(QMouseEvent *event, const QPoint &mousePos)
Override this to handle mouse press events. Mouse press event is given in the event and the mouse position in mousePos.
[virtual] void QAbstract3DInputHandler::mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos)
Override this to handle mouse release events. Mouse release event is given in the event and the mouse position in mousePos.
[protected] int QAbstract3DInputHandler::prevDistance() const
Returns the manhattan length between last two input positions.
参见 setPrevDistance().
[protected] QPoint QAbstract3DInputHandler::previousInputPos() const
Returns the previous input position.
参见 setPreviousInputPos().
[protected] void QAbstract3DInputHandler::setPrevDistance(int distance)
Sets the distance (manhattan length) between last two input positions.
参见 prevDistance().
[protected] void QAbstract3DInputHandler::setPreviousInputPos(const QPoint &position)
Sets the previous input position to the point given by position.
参见 previousInputPos().
[virtual] void QAbstract3DInputHandler::touchEvent(QTouchEvent *event)
Override this to handle touch input events. Touch event is given in the event.
[virtual] void QAbstract3DInputHandler::wheelEvent(QWheelEvent *event)
Override this to handle wheel events. Wheel event is given in the event.