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++ // Copyright (C) 2016 Jolla Ltd, author: <gunnar.sletta@jollamobile.com>
++ // Copyright (C) 2022 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 QGFXSOURCEPROXY_P_H
++ #define QGFXSOURCEPROXY_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/QQuickItem>
++ #include <QtCore/private/qglobal_p.h>
++ #include <QtCore/qrect.h>
++
++ QT_BEGIN_NAMESPACE
++
++ class QQuickShaderEffectSource;
++
++ class QGfxSourceProxyME : public QQuickItem
++ {
++ Q_OBJECT
++ Q_PROPERTY(QQuickItem *input READ input WRITE setInput NOTIFY inputChanged RESET resetInput FINAL)
++ Q_PROPERTY(QQuickItem *output READ output NOTIFY outputChanged FINAL)
++ Q_PROPERTY(QRectF sourceRect READ sourceRect WRITE setSourceRect NOTIFY sourceRectChanged FINAL)
++ Q_PROPERTY(bool active READ isActive NOTIFY activeChanged FINAL)
++ Q_PROPERTY(Interpolation interpolation READ interpolation WRITE setInterpolation NOTIFY interpolationChanged FINAL)
++
++ public:
++ enum class Interpolation {
++ Any,
++ Nearest,
++ Linear
++ };
++ Q_ENUM(Interpolation)
++
++ QGfxSourceProxyME(QQuickItem *parentItem = nullptr);
++ ~QGfxSourceProxyME();
++
++ QQuickItem *input() const { return m_input; }
++ void setInput(QQuickItem *input);
++ void resetInput() { setInput(nullptr); }
++
++ 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;
++
++ Q_SIGNALS:
++ void inputChanged();
++ void outputChanged();
++ void sourceRectChanged();
++ void activeChanged();
++ void interpolationChanged();
++
++ private Q_SLOTS:
++ void repolish();
++
++ private:
++ void setOutput(QQuickItem *output);
++ void useProxy();
++ static QObject *findLayer(QQuickItem *);
++
++ QRectF m_sourceRect;
++ QQuickItem *m_input = nullptr;
++ QQuickItem *m_output = nullptr;
++ QQuickShaderEffectSource *m_proxy = nullptr;
++
++ Interpolation m_interpolation = Interpolation::Any;
++ };
++
++ QT_END_NAMESPACE
++
++ #endif // QGFXSOURCEPROXY_P_H