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。

• 所有成员列表，包括继承成员

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 .

内容

• 公共函数

• 重实现公共函数

• 详细描述