| 1 | // Copyright (C) 2024 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
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| 3 | |
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| 4 | // W A R N I N G |
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| 5 | // ------------- |
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| 6 | // |
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| 7 | // This file is not part of the QtGraphs API. It exists purely as an |
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| 8 | // implementation detail. This header file may change from version to |
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| 9 | // version without notice, or even be removed. |
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| 10 | // |
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| 11 | // We mean it. |
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| 12 | |
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| 13 | #ifndef QGRAPHTRANSITION_H |
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| 14 | #define QGRAPHTRANSITION_H |
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| 15 | |
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| 16 | #include <QObject> |
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| 17 | #include <QParallelAnimationGroup> |
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| 18 | #include <QQmlEngine> |
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| 19 | #include <private/qgraphanimation_p.h> |
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| 20 | |
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| 21 | QT_BEGIN_NAMESPACE |
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| 22 | |
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| 23 | class QGraphTransition : public QObject, public QQmlParserStatus |
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| 24 | { |
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| 25 | Q_OBJECT |
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| 26 | Q_INTERFACES(QQmlParserStatus) |
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| 27 | Q_PROPERTY(QQmlListProperty<QObject> animations READ animations CONSTANT) |
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| 28 | Q_CLASSINFO("DefaultProperty" , "animations" ) |
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| 29 | QML_NAMED_ELEMENT(GraphTransition) |
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| 30 | |
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| 31 | public: |
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| 32 | enum class TransitionType { |
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| 33 | None, |
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| 34 | PointAdded, |
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| 35 | PointReplaced, |
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| 36 | PointRemoved, |
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| 37 | }; |
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| 38 | |
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| 39 | Q_ENUM(TransitionType); |
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| 40 | |
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| 41 | QGraphTransition(QObject *parent = nullptr); |
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| 42 | ~QGraphTransition() override; |
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| 43 | QQmlListProperty<QObject> animations(); |
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| 44 | |
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| 45 | void onPointChanged(TransitionType type, int index, QPointF point); |
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| 46 | void initialize(); |
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| 47 | void stop(); |
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| 48 | |
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| 49 | bool initialized(); |
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| 50 | bool contains(QGraphAnimation::GraphAnimationType type); |
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| 51 | |
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| 52 | protected: |
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| 53 | void classBegin() override; |
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| 54 | void componentComplete() override; |
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| 55 | |
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| 56 | private: |
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| 57 | QList<QGraphAnimation *> m_animations; |
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| 58 | QParallelAnimationGroup m_animationGroup; |
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| 59 | bool m_initialized; |
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| 60 | |
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| 61 | static void append(QQmlListProperty<QObject> *, QObject *); |
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| 62 | static void clear(QQmlListProperty<QObject> *); |
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| 63 | }; |
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| 64 | |
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| 65 | QT_END_NAMESPACE |
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| 66 | |
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| 67 | #endif // QGRAPHTRANSITION_H |
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| 68 | |
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