animated_stacked_widget.h

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#ifndef ANIMATED_STACKED_WIDGET_H
#define ANIMATED_STACKED_WIDGET_H
 
#include <QStackedWidget>
 
class GLTransitionWidget;
class QSoundEffect;
class QParallelAnimationGroup;

class AnimatedStackedWidget final : public QStackedWidget {
    Q_OBJECT
    Q_PROPERTY(int duration READ GetDuration WRITE SetDuration)
 
public:
    enum AnimationType {
        Fade, 
        Slide, 
        SlideAndFade, 
        Push 
    };

    explicit AnimatedStackedWidget(QWidget *parent = nullptr);

    ~AnimatedStackedWidget() override;

    void SetDuration(const int duration) { duration_ = duration; }

    int GetDuration() const { return duration_; }

    void SetAnimationType(const AnimationType type) { animation_type_ = type; }

    AnimationType GetAnimationType() const { return animation_type_; }

    bool IsAnimating() const { return animation_running_; }
 
public slots:
    void SlideToIndex(int index);

    void SlideToWidget(QWidget *widget);

    void SlideToNextIndex();
 
protected:
    void AnimateFade(int next_index) const;

    void AnimateSlide(int next_index) const;

    void AnimateSlideAndFade(int next_index) const;

    void AnimatePush(int next_index) const;
 
private slots:
    void OnGLTransitionFinished();
 
private:
    void PrepareAnimation(int next_index) const;

    void CleanupAfterAnimation() const;

    int duration_;
    AnimationType animation_type_;
    QParallelAnimationGroup *animation_group_;
    bool animation_running_;
    int target_index_;
    GLTransitionWidget *gl_transition_widget_ = nullptr;
    QSoundEffect *swoosh_sound_;
};
 
#endif // ANIMATED_STACKED_WIDGET_H