qsharedimageprovider_p.h

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// Copyright (C) 2017 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 QSHAREDIMAGEPROVIDER_H
#define QSHAREDIMAGEPROVIDER_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 "qtlabssharedimageglobal_p.h"
 
#include <QQuickImageProvider>
#include <private/qquickpixmap_p.h>
#include <QScopedPointer>
 
#include "qsharedimageloader_p.h"
 
QT_BEGIN_NAMESPACE
 
class SharedImageProvider;
 
class QuickSharedImageLoader : public QSharedImageLoader
{
    Q_OBJECT
    friend class SharedImageProvider;
 
public:
    enum ImageParameter {
        OriginalSize = 0,
        RequestedSize,
        ProviderOptions,
        NumImageParameters
    };
 
    QuickSharedImageLoader(QObject *parent = nullptr);
protected:
    QImage loadFile(const QString &path, ImageParameters *params) override;
    QString key(const QString &path, ImageParameters *params) override;
};
 
class Q_LABSSHAREDIMAGE_EXPORT SharedImageProvider : public QQuickImageProviderWithOptions
{
public:
    SharedImageProvider();
 
    QImage requestImage(const QString &id, QSize *size, const QSize &requestedSize, const QQuickImageProviderOptions &options) override;
 
protected:
    QScopedPointer<QuickSharedImageLoader> loader;
};
 
QT_END_NAMESPACE
 
#endif // QSHAREDIMAGEPROVIDER_H