內容

• 公共類型
• 特性
• 公共函數
• 公共槽
• 信號
• 詳細描述

QKeyframeAnimation Class

( Qt3DAnimation::QKeyframeAnimation )

A class implementing simple keyframe animation to a QTransform 更多...

頭：	#include <QKeyframeAnimation>
qmake:	QT += 3danimation
Since:	Qt 5.9
實例化：	KeyframeAnimation
繼承：	QAbstractAnimation

• 所有成員列錶，包括繼承成員

公共類型

enum	RepeatMode { None, Constant, Repeat }

特性

easing : QEasingCurve endMode : QKeyframeAnimation::RepeatMode framePositions : QVector<float>

startMode : QKeyframeAnimation::RepeatMode target : Qt3DCore::QTransform * targetName : QString

• 6 特性繼承自 QAbstractAnimation
• 1 特性繼承自 QObject

公共函數

	QKeyframeAnimation (QObject * parent = nullptr)
void	addKeyframe (Qt3DCore::QTransform * keyframe )
QEasingCurve	easing () const
RepeatMode	endMode () const
QVector<float>	framePositions () const
QVector<Qt3DCore::QTransform *>	keyframeList () const
void	removeKeyframe (Qt3DCore::QTransform * keyframe )
void	setKeyframes (const QVector<Qt3DCore::QTransform *> & keyframes )
RepeatMode	startMode () const
Qt3DCore::QTransform *	target () const
QString	targetName () const

• 11 公共函數繼承自 QAbstractAnimation
• 32 公共函數繼承自 QObject

公共槽

void	setEasing (const QEasingCurve & easing )
void	setEndMode (RepeatMode mode )
void	setFramePositions (const QVector<float> & positions )
void	setStartMode (RepeatMode mode )
void	setTarget (Qt3DCore::QTransform * target )
void	setTargetName (const QString & name )

• 6 public slots inherited from QAbstractAnimation
• 1 公共槽繼承自 QObject

信號

void	easingChanged (const QEasingCurve & easing )
void	endModeChanged (QKeyframeAnimation::RepeatMode endMode )
void	framePositionsChanged (const QVector<float> & positions )
void	startModeChanged (QKeyframeAnimation::RepeatMode startMode )
void	targetChanged (Qt3DCore::QTransform * target )
void	targetNameChanged (const QString & name )

• 4 信號繼承自 QAbstractAnimation
• 2 信號繼承自 QObject

額外繼承成員

• 11 靜態公共成員繼承自 QObject
• 4 保護函數繼承自 QAbstractAnimation
• 9 保護函數繼承自 QObject

詳細描述

A class implementing simple keyframe animation to a QTransform

A Qt3DAnimation::QKeyframeAnimation class implements simple keyframe animation that can be used to animate QTransform . The keyframes consists of multiple timed QTransforms, which are interpolated and applied to the target QTransform . QEasingCurve is used between keyframes to control the interpolator. RepeatMode can be set for when the position set to the QKeyframeAnimation is below or above the values defined in the keyframe positions.

成員類型文檔編製

enum QKeyframeAnimation:: RepeatMode

This enumeration specifies how position values outside keyframe values are handled.

常量	值	描述
Qt3DAnimation::QKeyframeAnimation::None	0	The animation is not applied to the target transform.
Qt3DAnimation::QKeyframeAnimation::Constant	1	The edge keyframe value is used.
Qt3DAnimation::QKeyframeAnimation::Repeat	2	The animation is repeated.

特性文檔編製

easing : QEasingCurve

Holds the easing curve of the interpolator between keyframes.

訪問函數：

QEasingCurve	easing () const
void	setEasing (const QEasingCurve & easing )

通知程序信號：

void	easingChanged (const QEasingCurve & easing )

endMode : QKeyframeAnimation::RepeatMode

Holds the repeat mode for the position values greater than the last frame position.

訪問函數：

RepeatMode	endMode () const
void	setEndMode (RepeatMode mode )

通知程序信號：

void	endModeChanged (QKeyframeAnimation::RepeatMode endMode )

framePositions : QVector < float >

Holds the positions of the keyframes. Each position in the list specifies the position of the corresponding keyframe with the same index. The values must be in an ascending order. Values can be positive or negative and do not have any predefined unit.

訪問函數：

QVector<float>	framePositions () const
void	setFramePositions (const QVector<float> & positions )

通知程序信號：

void	framePositionsChanged (const QVector<float> & positions )

startMode : QKeyframeAnimation::RepeatMode

Holds the repeat mode for the position values less than the first frame position.

訪問函數：

RepeatMode	startMode () const
void	setStartMode (RepeatMode mode )

通知程序信號：

void	startModeChanged (QKeyframeAnimation::RepeatMode startMode )

target : Qt3DCore::QTransform *

Holds the target QTransform the animation is applied to.

訪問函數：

Qt3DCore::QTransform *	target () const
void	setTarget (Qt3DCore::QTransform * target )

通知程序信號：

void	targetChanged (Qt3DCore::QTransform * target )

targetName : QString

Holds the name of the target transform. This is a convenience property making it easier to match the target transform to the keyframe animation. The name is usually same as the name of the parent entity of the target transform, but does not have to be.

訪問函數：

QString	targetName () const
void	setTargetName (const QString & name )

通知程序信號：

void	targetNameChanged (const QString & name )

成員函數文檔編製

QKeyframeAnimation:: QKeyframeAnimation ( QObject * parent = nullptr)

Constructs an QKeyframeAnimation with parent .

void QKeyframeAnimation:: addKeyframe ( Qt3DCore::QTransform * keyframe )

Adds new keyframe at the end of the animation. The QTransform can be added to the animation multiple times.

QVector < Qt3DCore::QTransform *> QKeyframeAnimation:: keyframeList () const

Returns the list of keyframes.

void QKeyframeAnimation:: removeKeyframe ( Qt3DCore::QTransform * keyframe )

Removes a keyframe from the animation. If the same QTransform is set as keyframe multiple times, all occurrences are removed.

void QKeyframeAnimation:: setKeyframes (const QVector < Qt3DCore::QTransform *> & keyframes )

設置 keyframes of the animation. Old keyframes are cleared.