QSwipeGesture 类

QSwipeGesture class describes a swipe gesture made by the user. 更多...

头：	#include <QSwipeGesture>
qmake:	QT += widgets
Since:	Qt 4.6
继承：	QGesture

所有成员列表，包括继承成员

公共类型

enum	SwipeDirection { NoDirection, Left, Right, Up, Down }

特性

horizontalDirection : const SwipeDirection
swipeAngle : qreal
verticalDirection : const SwipeDirection

5 特性继承自 QGesture
1 特性继承自 QObject

公共函数

	~QSwipeGesture ()
SwipeDirection	horizontalDirection () const
void	setSwipeAngle (qreal value )
qreal	swipeAngle () const
SwipeDirection	verticalDirection () const

8 公共函数继承自 QGesture
32 公共函数继承自 QObject

额外继承成员

1 公共槽继承自 QObject
2 信号继承自 QObject
11 静态公共成员继承自 QObject
9 保护函数继承自 QObject

详细描述

QSwipeGesture class describes a swipe gesture made by the user.

对于 Qt 中手势处理的概述和在应用程序中使用手势的信息，见在 Widget 和图形视图中的手势文档。

另请参阅 QPanGesture and QPinchGesture .

成员类型文档编制

enum QSwipeGesture:: SwipeDirection

This enum describes the possible directions for the gesture's motion along the horizontal and vertical axes.

常量	值	描述
`QSwipeGesture::NoDirection`	`0`	The gesture had no motion associated with it on a particular axis.
`QSwipeGesture::Left`	`1`	The gesture involved a horizontal motion to the left.
`QSwipeGesture::Right`	`2`	The gesture involved a horizontal motion to the right.
`QSwipeGesture::Up`	`3`	The gesture involved an upward vertical motion.
`QSwipeGesture::Down`	`4`	The gesture involved a downward vertical motion.

特性文档编制

horizontalDirection : const SwipeDirection

This property holds the horizontal direction of the gesture

If the gesture has a horizontal component, the horizontal direction is either Left or Right; otherwise, it is NoDirection .

访问函数：

SwipeDirection horizontalDirection () const

另请参阅 verticalDirection and swipeAngle .

swipeAngle : qreal

This property holds the angle of the motion associated with the gesture

If the gesture has either a horizontal or vertical component, the swipe angle describes the angle between the direction of motion and the x-axis as defined using the standard widget coordinate system .

访问函数：

qreal	swipeAngle () const
void	setSwipeAngle (qreal value )

另请参阅 horizontalDirection and verticalDirection .

verticalDirection : const SwipeDirection

This property holds the vertical direction of the gesture

If the gesture has a vertical component, the vertical direction is either Up or Down; otherwise, it is NoDirection .

访问函数：

SwipeDirection verticalDirection () const

另请参阅 horizontalDirection and swipeAngle .

成员函数文档编制

QSwipeGesture:: ~QSwipeGesture ()

析构函数。