1// Copyright (C) 2017 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QSHAREDIMAGEPROVIDER_H
5#define QSHAREDIMAGEPROVIDER_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include "qtlabssharedimageglobal_p.h"
19
20#include <QQuickImageProvider>
21#include <private/qquickpixmapcache_p.h>
22#include <QScopedPointer>
23
24#include "qsharedimageloader_p.h"
25
26QT_BEGIN_NAMESPACE
27
28class SharedImageProvider;
29
30class QuickSharedImageLoader : public QSharedImageLoader
31{
32 Q_OBJECT
33 friend class SharedImageProvider;
34
35public:
36 enum ImageParameter {
37 OriginalSize = 0,
38 RequestedSize,
39 ProviderOptions,
40 NumImageParameters
41 };
42
43 QuickSharedImageLoader(QObject *parent = nullptr);
44protected:
45 QImage loadFile(const QString &path, ImageParameters *params) override;
46 QString key(const QString &path, ImageParameters *params) override;
47};
48
49class Q_LABSSHAREDIMAGE_PRIVATE_EXPORT SharedImageProvider : public QQuickImageProviderWithOptions
50{
51public:
52 SharedImageProvider();
53
54 QImage requestImage(const QString &id, QSize *size, const QSize &requestedSize, const QQuickImageProviderOptions &options) override;
55
56protected:
57 QScopedPointer<QuickSharedImageLoader> loader;
58};
59
60QT_END_NAMESPACE
61
62#endif // QSHAREDIMAGEPROVIDER_H
63

source code of qtdeclarative/src/labs/sharedimage/qsharedimageprovider_p.h