qgfxsourceproxy_p.h

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// Copyright (C) 2022 The Qt Company Ltd.

// Copyright (C) 2016 Jolla Ltd, author: <gunnar.sletta@jollamobile.com>

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#ifndef QGFXSOURCEPROXY_P_H

#define QGFXSOURCEPROXY_P_H

#include <QtQuick/QQuickItem>

#include <QtQml/qqmlregistration.h>

#include <QtCore/private/qglobal_p.h>

QT_BEGIN_NAMESPACE

class QQuickShaderEffectSource;

class QGfxSourceProxy : public QQuickItem

    Q_OBJECT

    Q_PROPERTY(QQuickItem *input READ input WRITE setInput NOTIFY inputChanged RESET resetInput)

    Q_PROPERTY(QQuickItem *output READ output NOTIFY outputChanged)

    Q_PROPERTY(QRectF sourceRect READ sourceRect WRITE setSourceRect NOTIFY sourceRectChanged)

    Q_PROPERTY(bool active READ isActive NOTIFY activeChanged)

    Q_PROPERTY(Interpolation interpolation READ interpolation WRITE setInterpolation NOTIFY interpolationChanged)

    QML_NAMED_ELEMENT(SourceProxy)

    QML_ADDED_IN_VERSION(5, 0)

public:

    enum Interpolation {

        AnyInterpolation,

        NearestInterpolation,

        LinearInterpolation

};

    Q_ENUM(Interpolation)

    QGfxSourceProxy(QQuickItem *item = 0);

    ~QGfxSourceProxy();

    QQuickItem *input() const { return m_input; }

    void setInput(QQuickItem *input);

    void resetInput() { setInput(0); }

    QQuickItem *output() const { return m_output; }

    QRectF sourceRect() const { return m_sourceRect; }

    void setSourceRect(const QRectF &sourceRect);

    bool isActive() const { return m_output && m_output != m_input; }

    void setInterpolation(Interpolation i);

    Interpolation interpolation() const { return m_interpolation; }

protected:

    void updatePolish() override;

signals:

    void inputChanged();

    void outputChanged();

    void sourceRectChanged();

    void activeChanged();

    void interpolationChanged();

private slots:

    void repolish();

private:

    void setOutput(QQuickItem *output);

    void useProxy();

    static QObject *findLayer(QQuickItem *);

    QRectF m_sourceRect;

    QQuickItem *m_input;

    QQuickItem *m_output;

    QQuickShaderEffectSource *m_proxy;

    Interpolation m_interpolation;

};

QT_END_NAMESPACE

#endif // QGFXSOURCEPROXY_P_H