Basic touch display based input handler. 更多...
| 頭： | #include <QTouch3DInputHandler> |
| qmake: | QT += datavisualization |
| Since: | QtDataVisualization 1.0 |
| 實例化： | TouchInputHandler3D |
| 繼承： | Q3DInputHandler |
該類在 QtDataVisualization 1.0 引入。
| QTouch3DInputHandler (QObject * parent = nullptr) | |
| virtual | ~QTouch3DInputHandler () |
| virtual void | touchEvent (QTouchEvent * event ) override |
QTouch3DInputHandler is the basic input handler for touch screen devices.
Default touch input handler has the following functionalty:
| Gesture | 動作 |
|---|---|
| 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 選定模式 . |
| 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 圖形。 |
Rotation, zoom, and selection can each be individually disabled using corresponding Q3DInputHandler 特性。
Constructs the basic touch display input handler. An optional parent 參數可以給齣，然後會被傳遞給 QObject 構造函數。
[虛擬]
QTouch3DInputHandler::
~QTouch3DInputHandler
()
Destroys the input handler.
[override virtual]
void
QTouch3DInputHandler::
touchEvent
(
QTouchEvent
*
event
)
重實現： QAbstract3DInputHandler::touchEvent (QTouchEvent *event).
Override this to change handling of touch events. Touch event is given in the event .