Q3DInputHandler Class
Basic wheel mouse based input handler. More...
Header: | #include <Q3DInputHandler> |
CMake: | find_package(Qt6 REQUIRED COMPONENTS DataVisualization) target_link_libraries(mytarget PRIVATE Qt6::DataVisualization) |
qmake: | QT += datavisualization |
Since: | QtDataVisualization 1.0 |
Instantiated By: | InputHandler3D |
Inherits: | QAbstract3DInputHandler |
Inherited By: |
Properties
(since QtDataVisualization 1.2)
rotationEnabled : bool(since QtDataVisualization 1.2)
selectionEnabled : bool(since QtDataVisualization 1.2)
zoomAtTargetEnabled : bool(since QtDataVisualization 1.2)
zoomEnabled : bool
Public Functions
Q3DInputHandler(QObject *parent = 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) |
Reimplemented Public Functions
virtual void | mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos) override |
virtual void | mousePressEvent(QMouseEvent *event, const QPoint &mousePos) override |
virtual void | mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos) override |
virtual void | wheelEvent(QWheelEvent *event) override |
Signals
void | rotationEnabledChanged(bool enable) |
void | selectionEnabledChanged(bool enable) |
void | zoomAtTargetEnabledChanged(bool enable) |
void | zoomEnabledChanged(bool enable) |
Detailed Description
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.
Property Documentation
[since QtDataVisualization 1.2]
rotationEnabled : bool
This property holds whether this input handler allows graph rotation.
Defaults to true
.
This property was introduced in QtDataVisualization 1.2.
Access functions:
bool | isRotationEnabled() const |
void | setRotationEnabled(bool enable) |
Notifier signal:
void | rotationEnabledChanged(bool enable) |
[since QtDataVisualization 1.2]
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.
Access functions:
bool | isSelectionEnabled() const |
void | setSelectionEnabled(bool enable) |
Notifier signal:
void | selectionEnabledChanged(bool enable) |
[since QtDataVisualization 1.2]
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.
Access functions:
bool | isZoomAtTargetEnabled() const |
void | setZoomAtTargetEnabled(bool enable) |
Notifier signal:
void | zoomAtTargetEnabledChanged(bool enable) |
[since QtDataVisualization 1.2]
zoomEnabled : bool
This property holds whether this input handler allows graph zooming.
Defaults to true
.
This property was introduced in QtDataVisualization 1.2.
Access functions:
bool | isZoomEnabled() const |
void | setZoomEnabled(bool enable) |
Notifier signal:
void | zoomEnabledChanged(bool enable) |
Member Function Documentation
[explicit]
Q3DInputHandler::Q3DInputHandler(QObject *parent = nullptr)
Constructs the basic mouse input handler. An optional parent parameter can be given and is then passed to QObject constructor.
[virtual noexcept]
Q3DInputHandler::~Q3DInputHandler()
Destroys the input handler.
[override virtual]
void Q3DInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos)
Reimplements: QAbstract3DInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos).
Override this to change handling of mouse move events. Mouse move event is given in the event and the mouse position in mousePos.
[override virtual]
void Q3DInputHandler::mousePressEvent(QMouseEvent *event, const QPoint &mousePos)
Reimplements: QAbstract3DInputHandler::mousePressEvent(QMouseEvent *event, const QPoint &mousePos).
Override this to change handling of mouse press events. Mouse press event is given in the event and the mouse position in mousePos.
[override virtual]
void Q3DInputHandler::mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos)
Reimplements: QAbstract3DInputHandler::mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos).
Override this to change handling of mouse release events. Mouse release event is given in the event and the mouse position in mousePos.
[override virtual]
void Q3DInputHandler::wheelEvent(QWheelEvent *event)
Reimplements: QAbstract3DInputHandler::wheelEvent(QWheelEvent *event).
Override this to change handling of wheel events. The wheel event is given in the event.
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