QTouch3DInputHandler Class

Basic touch display based input handler. 更多...

头: #include <QTouch3DInputHandler>
qmake: QT += datavisualization
Since: QtDataVisualization 1.0
实例化: TouchInputHandler3D
继承: Q3DInputHandler

该类在 QtDataVisualization 1.0 引入。

公共函数

QTouch3DInputHandler (QObject * parent = nullptr)
virtual ~QTouch3DInputHandler ()

重实现公共函数

virtual void touchEvent (QTouchEvent * event ) override

详细描述

QTouch3DInputHandler is the basic input handler for touch screen devices.

Default touch input handler has the following functionalty:

Gesture 动作
Touch-And-Move Rotate graph within limits set for Q3DCamera
Tap Select the item tapped or remove selection if none. May open the secondary view depending on the 选定模式 .
Tap-And-Hold Same as tap.
Pinch Zoom in/out within the allowable zoom range set for Q3DCamera .
Tap on the primary view when the secondary view is visible

Closes the secondary view.

注意: Secondary view is available only for Q3DBars and Q3DSurface 图形。

Rotation, zoom, and selection can each be individually disabled using corresponding Q3DInputHandler 特性。

成员函数文档编制

QTouch3DInputHandler:: QTouch3DInputHandler ( QObject * parent = nullptr)

Constructs the basic touch display input handler. An optional parent 参数可以给出,然后会被传递给 QObject 构造函数。

[虚拟] QTouch3DInputHandler:: ~QTouch3DInputHandler ()

Destroys the input handler.

[override virtual] void QTouch3DInputHandler:: touchEvent ( QTouchEvent * event )

重实现: QAbstract3DInputHandler::touchEvent (QTouchEvent *event).

Override this to change handling of touch events. Touch event is given in the event .