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#ifndef QSEQUENTIALANIMATIONGROUP_P_H
#define QSEQUENTIALANIMATIONGROUP_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of QIODevice. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qsequentialanimationgroup.h"
#include "private/qanimationgroup_p.h"
#ifndef QT_NO_ANIMATION
QT_BEGIN_NAMESPACE
class QSequentialAnimationGroupPrivate : public QAnimationGroupPrivate
{
Q_DECLARE_PUBLIC(QSequentialAnimationGroup)
public:
QSequentialAnimationGroupPrivate()
: currentAnimation(0), currentAnimationIndex(-1), lastLoop(0)
{ }
struct AnimationIndex
{
AnimationIndex() : index(0), timeOffset(0) {}
//这里是74行
// index points to the animation at timeOffset, skipping 0 duration animations.
// Note that the index semantic is slightly different depending on the direction.
int index; // the index of the animation in timeOffset
int timeOffset; // time offset when the animation at index starts.
};
int animationActualTotalDuration(int index) const;
AnimationIndex indexForCurrentTime() const;
void setCurrentAnimation(int index, bool intermediate = false);
void activateCurrentAnimation(bool intermediate = false);
void animationInsertedAt(int index);
void animationRemoved(int index, QAbstractAnimation *anim);
bool atEnd() const;
QAbstractAnimation *currentAnimation;
int currentAnimationIndex;
// this is the actual duration of uncontrolled animations
// it helps seeking and even going forward
QList<int> actualDuration;
void restart();
int lastLoop;
// handle time changes
void rewindForwards(const AnimationIndex &newAnimationIndex);
void advanceForwards(const AnimationIndex &newAnimationIndex);
// private slot
void _q_uncontrolledAnimationFinished();
};
QT_END_NAMESPACE
#endif //QT_NO_ANIMATION
#endif //QSEQUENTIALANIMATIONGROUP_P_H
这是整个qsequentialanimationgroup_p.h
