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