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| |
| #ifndef QQUICKITEMVIEWTRANSITION_P_P_H |
| #define QQUICKITEMVIEWTRANSITION_P_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtQuick/private/qtquickglobal_p.h> |
| |
| QT_REQUIRE_CONFIG(quick_viewtransitions); |
| |
| #include <QtCore/qobject.h> |
| #include <QtCore/qpoint.h> |
| #include <QtQml/qqml.h> |
| #include <private/qqmlguard_p.h> |
| #include <private/qquicktransition_p.h> |
| #include <private/qanimationjobutil_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QQuickItem; |
| class QQuickTransition; |
| class QQuickItemViewTransitionableItem; |
| class QQuickItemViewTransitionJob; |
| |
| |
| class Q_QUICK_PRIVATE_EXPORT QQuickItemViewTransitionChangeListener |
| { |
| public: |
| QQuickItemViewTransitionChangeListener() {} |
| virtual ~QQuickItemViewTransitionChangeListener() {} |
| |
| virtual void viewItemTransitionFinished(QQuickItemViewTransitionableItem *item) = 0; |
| }; |
| |
| |
| class Q_QUICK_PRIVATE_EXPORT QQuickItemViewTransitioner |
| { |
| public: |
| enum TransitionType { |
| NoTransition, |
| PopulateTransition, |
| AddTransition, |
| MoveTransition, |
| RemoveTransition |
| }; |
| |
| QQuickItemViewTransitioner(); |
| virtual ~QQuickItemViewTransitioner(); |
| |
| bool canTransition(QQuickItemViewTransitioner::TransitionType type, bool asTarget) const; |
| void transitionNextReposition(QQuickItemViewTransitionableItem *item, QQuickItemViewTransitioner::TransitionType type, bool isTarget); |
| |
| void addToTargetLists(QQuickItemViewTransitioner::TransitionType type, QQuickItemViewTransitionableItem *item, int index); |
| void resetTargetLists(); |
| |
| QQuickTransition *transitionObject(QQuickItemViewTransitioner::TransitionType type, bool asTarget) const; |
| const QList<int> &targetIndexes(QQuickItemViewTransitioner::TransitionType type) const; |
| const QList<QObject *> &targetItems(QQuickItemViewTransitioner::TransitionType type) const; |
| |
| inline void setPopulateTransitionEnabled(bool b) { usePopulateTransition = b; } |
| inline bool populateTransitionEnabled() const { return usePopulateTransition; } |
| |
| inline void setChangeListener(QQuickItemViewTransitionChangeListener *obj) { changeListener = obj; } |
| |
| QSet<QQuickItemViewTransitionJob *> runningJobs; |
| |
| QList<int> addTransitionIndexes; |
| QList<int> moveTransitionIndexes; |
| QList<int> removeTransitionIndexes; |
| QList<QObject *> addTransitionTargets; |
| QList<QObject *> moveTransitionTargets; |
| QList<QObject *> removeTransitionTargets; |
| |
| QQmlGuard<QQuickTransition> populateTransition; |
| QQmlGuard<QQuickTransition> addTransition; |
| QQmlGuard<QQuickTransition> addDisplacedTransition; |
| QQmlGuard<QQuickTransition> moveTransition; |
| QQmlGuard<QQuickTransition> moveDisplacedTransition; |
| QQmlGuard<QQuickTransition> removeTransition; |
| QQmlGuard<QQuickTransition> removeDisplacedTransition; |
| QQmlGuard<QQuickTransition> displacedTransition; |
| |
| private: |
| friend class QQuickItemViewTransitionJob; |
| |
| QQuickItemViewTransitionChangeListener *changeListener; |
| bool usePopulateTransition; |
| |
| void finishedTransition(QQuickItemViewTransitionJob *job, QQuickItemViewTransitionableItem *item); |
| }; |
| |
| |
| /* |
| An item that can be transitioned using QQuickViewTransitionJob. |
| */ |
| class Q_QUICK_PRIVATE_EXPORT QQuickItemViewTransitionableItem |
| { |
| public: |
| QQuickItemViewTransitionableItem(QQuickItem *i); |
| virtual ~QQuickItemViewTransitionableItem(); |
| |
| qreal itemX() const; |
| qreal itemY() const; |
| |
| void moveTo(const QPointF &pos, bool immediate = false); |
| |
| bool transitionScheduledOrRunning() const; |
| bool transitionRunning() const; |
| bool isPendingRemoval() const; |
| |
| bool prepareTransition(QQuickItemViewTransitioner *transitioner, int index, const QRectF &viewBounds); |
| void startTransition(QQuickItemViewTransitioner *transitioner, int index); |
| |
| SelfDeletable m_selfDeletable; |
| QPointF nextTransitionTo; |
| QPointF lastMovedTo; |
| QPointF nextTransitionFrom; |
| QQuickItem *item; |
| QQuickItemViewTransitionJob *transition; |
| QQuickItemViewTransitioner::TransitionType nextTransitionType; |
| bool isTransitionTarget : 1; |
| bool nextTransitionToSet : 1; |
| bool nextTransitionFromSet : 1; |
| bool lastMovedToSet : 1; |
| bool prepared : 1; |
| |
| private: |
| friend class QQuickItemViewTransitioner; |
| friend class QQuickItemViewTransitionJob; |
| void setNextTransition(QQuickItemViewTransitioner::TransitionType, bool isTargetItem); |
| bool transitionWillChangePosition() const; |
| void finishedTransition(); |
| void resetNextTransitionPos(); |
| void clearCurrentScheduledTransition(); |
| void stopTransition(); |
| }; |
| |
| |
| class QQuickViewTransitionAttached : public QObject |
| { |
| Q_OBJECT |
| |
| Q_PROPERTY(int index READ index NOTIFY indexChanged) |
| Q_PROPERTY(QQuickItem* item READ item NOTIFY itemChanged) |
| Q_PROPERTY(QPointF destination READ destination NOTIFY destinationChanged) |
| |
| Q_PROPERTY(QList<int> targetIndexes READ targetIndexes NOTIFY targetIndexesChanged) |
| Q_PROPERTY(QQmlListProperty<QObject> targetItems READ targetItems NOTIFY targetItemsChanged) |
| |
| public: |
| QQuickViewTransitionAttached(QObject *parent); |
| |
| int index() const { return m_index; } |
| QQuickItem *item() const { return m_item; } |
| QPointF destination() const { return m_destination; } |
| |
| QList<int> targetIndexes() const { return m_targetIndexes; } |
| QQmlListProperty<QObject> targetItems(); |
| |
| static QQuickViewTransitionAttached *qmlAttachedProperties(QObject *); |
| |
| Q_SIGNALS: |
| void indexChanged(); |
| void itemChanged(); |
| void destinationChanged(); |
| |
| void targetIndexesChanged(); |
| void targetItemsChanged(); |
| |
| private: |
| friend class QQuickItemViewTransitionJob; |
| QPointF m_destination; |
| QList<int> m_targetIndexes; |
| QList<QObject *> m_targetItems; |
| |
| QQuickItem *m_item; |
| int m_index; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| QML_DECLARE_TYPE(QQuickViewTransitionAttached) |
| QML_DECLARE_TYPEINFO(QQuickViewTransitionAttached, QML_HAS_ATTACHED_PROPERTIES) |
| |
| #endif // QQUICKITEMVIEWTRANSITION_P_P_H |