qquicktransformgroup_p.h

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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QQUICKTRANSFORMGROUP_P_H
#define QQUICKTRANSFORMGROUP_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 <QtCore/qobject.h>
#include <QtCore/qhash.h>
#include <QtQml/qqmllist.h>
#include <QtQuick/qquickitem.h>
#include <QtQuickVectorImageHelpers/qtquickvectorimagehelpersexports.h>
 
QT_BEGIN_NAMESPACE
 
class Q_QUICKVECTORIMAGEHELPERS_EXPORT QQuickTransformGroup : public QQuickTransform
{
    Q_OBJECT
    QML_NAMED_ELEMENT(TransformGroup)
 
    Q_PROPERTY(QQmlListProperty<QQuickTransform> transformSequence READ transformSequence)
    Q_CLASSINFO("DefaultProperty", "transformSequence")
 
public:
    QQuickTransformGroup(QObject *parent = nullptr);
    ~QQuickTransformGroup();
 
    Q_INVOKABLE void activateOverride(QQuickTransform *);
    Q_INVOKABLE void deactivateOverride(QQuickTransform *);
    Q_INVOKABLE void deactivate(QQuickTransform *);
 
    void applyTo(QMatrix4x4 *matrix) const override;
 
    QQmlListProperty<QQuickTransform> transformSequence();
 
    void triggerUpdate();
 
private:
    Q_DECLARE_PRIVATE(QQuickTransform)
 
    static void transformSequence_append(QQmlListProperty<QQuickTransform> *, QQuickTransform *);
    static qsizetype transformSequence_count(QQmlListProperty<QQuickTransform> *);
    static QQuickTransform *transformSequence_at(QQmlListProperty<QQuickTransform> *, qsizetype);
    static void transformSequence_clear(QQmlListProperty<QQuickTransform> *);
 
    enum StateFlag {
        Disabled = 1,
        Override = 2
    };
 
    QQuickItem *m_dummyItem = nullptr;
    QList<QQuickTransform *> m_transforms;
    QHash<QQuickTransform *, int> m_transformFlags;
};
 
QT_END_NAMESPACE
 
#endif // QQUICKTRANSFORMGROUP_P_H