QAbstract3DInputHandler Class
The base class for implementations of input handlers. More...
| Header: | #include <QAbstract3DInputHandler> |
| Since: | QtDataVisualization 1.0 |
| Instantiated By: | AbstractInputHandler3D |
| Inherits: | QObject |
| Inherited By: |
This class was introduced in QtDataVisualization 1.0.
Public Types
| enum | InputView { InputViewNone, InputViewOnPrimary, InputViewOnSecondary } |
Properties
- inputPosition : QPoint
- inputView : InputView
- scene : Q3DScene*
Public Functions
| virtual | ~QAbstract3DInputHandler() |
| QPoint | inputPosition() const |
| QAbstract3DInputHandler::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(QAbstract3DInputHandler::InputView inputView) |
| void | setScene(Q3DScene *scene) |
| virtual void | touchEvent(QTouchEvent *event) |
| virtual void | wheelEvent(QWheelEvent *event) |
Signals
| void | inputViewChanged(QAbstract3DInputHandler::InputView view) |
| void | positionChanged(const QPoint &position) |
| void | sceneChanged(Q3DScene *scene) |
Protected Functions
| QAbstract3DInputHandler(QObject *parent = nullptr) | |
| int | prevDistance() const |
| QPoint | previousInputPos() const |
| void | setPrevDistance(int distance) |
| void | setPreviousInputPos(const QPoint &position) |
Detailed Description
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.
Member Type Documentation
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. |
Property Documentation
inputPosition : QPoint
This property holds the last input position based on the processed input events.
Access functions:
| 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.
Access functions:
| QAbstract3DInputHandler::InputView | inputView() const |
| void | setInputView(QAbstract3DInputHandler::InputView inputView) |
Notifier signal:
| void | inputViewChanged(QAbstract3DInputHandler::InputView view) |
See also 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.
Access functions:
| Q3DScene * | scene() const |
| void | setScene(Q3DScene *scene) |
Notifier signal:
| void | sceneChanged(Q3DScene *scene) |
Member Function Documentation
[protected] QAbstract3DInputHandler::QAbstract3DInputHandler(QObject *parent = 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.
See also setPrevDistance().
[protected] QPoint QAbstract3DInputHandler::previousInputPos() const
Returns the previous input position.
See also setPreviousInputPos().
[protected] void QAbstract3DInputHandler::setPrevDistance(int distance)
Sets the distance (manhattan length) between last two input positions.
See also prevDistance().
[protected] void QAbstract3DInputHandler::setPreviousInputPos(const QPoint &position)
Sets the previous input position to the point given by position.
See also 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.
© The Qt Company Ltd
Licensed under the GNU Free Documentation License, Version 1.3.
https://doc.qt.io/qt-5.14/qabstract3dinputhandler.html