內容

• 特性
• 公共函數
• 重實現公共函數
• 信號
• 詳細描述

Q3DInputHandler 類

基於滾輪鼠標的基本輸入處理程序。 更多...

頭：	#include <Q3DInputHandler>
Since:	QtDataVisualization 1.0
實例化：	InputHandler3D
繼承：	QAbstract3DInputHandler
繼承者：	QTouch3DInputHandler

• 所有成員列錶，包括繼承成員

特性

• rotationEnabled : bool
• selectionEnabled : bool
• zoomAtTargetEnabled : bool
• zoomEnabled : bool

• 3 特性繼承自 QAbstract3DInputHandler
• 1 特性繼承自 QObject

公共函數

	Q3DInputHandler (QObject * parent = Q_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 )

重實現公共函數

virtual void	mouseMoveEvent (QMouseEvent * event , const QPoint & mousePos )
virtual void	mousePressEvent (QMouseEvent * event , const QPoint & mousePos )
virtual void	mouseReleaseEvent (QMouseEvent * event , const QPoint & mousePos )
virtual void	wheelEvent (QWheelEvent * event )

• 12 公共函數繼承自 QAbstract3DInputHandler
• 32 公共函數繼承自 QObject

信號

void	rotationEnabledChanged (bool enable )
void	selectionEnabledChanged (bool enable )
void	zoomAtTargetEnabledChanged (bool enable )
void	zoomEnabledChanged (bool enable )

• 3 信號繼承自 QAbstract3DInputHandler
• 2 信號繼承自 QObject

額外繼承成員

• 1 公共槽繼承自 QObject
• 11 靜態公共成員繼承自 QObject
• 4 保護函數繼承自 QAbstract3DInputHandler
• 9 保護函數繼承自 QObject

詳細描述

基於滾輪鼠標的基本輸入處理程序。

Q3DInputHandler is the basic input handler for wheel mouse type of input devices.

Default input handler has the following functionalty:

Mouse action	動作
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 選定模式 .
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. 注意： Secondary view is available only for Q3DBars and Q3DSurface 圖形。

Rotation, zoom, and selection can each be individually disabled using corresponding properties of this class.

特性文檔編製

rotationEnabled : bool

This property holds whether this input handler allows graph rotation.

默認為 true .

該特性在 QtDataVisualization 1.2 引入。

訪問函數：

bool	isRotationEnabled () const
void	setRotationEnabled (bool enable )

通知程序信號：

void	rotationEnabledChanged (bool enable )

selectionEnabled : bool

This property holds whether this input handler allows selection from the graph.

默認為 true .

該特性在 QtDataVisualization 1.2 引入。

訪問函數：

bool	isSelectionEnabled () const
void	setSelectionEnabled (bool enable )

通知程序信號：

void	selectionEnabledChanged (bool enable )

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.

默認為 true .

該特性在 QtDataVisualization 1.2 引入。

訪問函數：

bool	isZoomAtTargetEnabled () const
void	setZoomAtTargetEnabled (bool enable )

通知程序信號：

void	zoomAtTargetEnabledChanged (bool enable )

zoomEnabled : bool

This property holds whether this input handler allows graph zooming.

默認為 true .

該特性在 QtDataVisualization 1.2 引入。

訪問函數：

bool	isZoomEnabled () const
void	setZoomEnabled (bool enable )

通知程序信號：

void	zoomEnabledChanged (bool enable )

成員函數文檔編製

Q3DInputHandler:: Q3DInputHandler ( QObject * parent = Q_NULLPTR)

Constructs the basic mouse 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] Q3DInputHandler:: ~Q3DInputHandler ()

Destroys the input handler.

[虛擬] void Q3DInputHandler:: mouseMoveEvent ( QMouseEvent * event , const QPoint & mousePos )

重實現自 QAbstract3DInputHandler::mouseMoveEvent ().

Override this to change handling of mouse move events. Mouse move event is given in the event and the mouse position in mousePos .

[虛擬] void Q3DInputHandler:: mousePressEvent ( QMouseEvent * event , const QPoint & mousePos )

重實現自 QAbstract3DInputHandler::mousePressEvent ().

Override this to change handling of mouse press events. Mouse press event is given in the event and the mouse position in mousePos .

[虛擬] void Q3DInputHandler:: mouseReleaseEvent ( QMouseEvent * event , const QPoint & mousePos )

重實現自 QAbstract3DInputHandler::mouseReleaseEvent ().

Override this to change handling of mouse release events. Mouse release event is given in the event and the mouse position in mousePos .

[虛擬] void Q3DInputHandler:: wheelEvent ( QWheelEvent * event )

重實現自 QAbstract3DInputHandler::wheelEvent ().

Override this to change handling of wheel events. The wheel event is given in the event .