1// Copyright (C) 2016 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 QPIXMAPCACHE_P_H
5#define QPIXMAPCACHE_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. This header
12// file may change from version to version without notice, or even be removed.
13//
14// We mean it.
15//
16
17#include <QtGui/private/qtguiglobal_p.h>
18#include "qpixmapcache.h"
19#include "qpaintengine.h"
20#include <private/qimage_p.h>
21#include <private/qpixmap_raster_p.h>
22#include "qcache.h"
23
24QT_BEGIN_NAMESPACE
25
26class QPixmapCache::KeyData
27{
28public:
29 KeyData() : isValid(true), key(0), ref(1) {}
30 KeyData(const KeyData &other)
31 : isValid(other.isValid), key(other.key), ref(1) {}
32 ~KeyData() {}
33
34 QString stringKey;
35 bool isValid;
36 int key;
37 int ref;
38};
39
40// XXX: hw: is this a general concept we need to abstract?
41class QPixmapCacheEntry : public QPixmap
42{
43public:
44 QPixmapCacheEntry(const QPixmapCache::Key &key, const QPixmap &pix) : QPixmap(pix), key(key)
45 {
46 QPlatformPixmap *pd = handle();
47 if (pd && pd->classId() == QPlatformPixmap::RasterClass) {
48 QRasterPlatformPixmap *d = static_cast<QRasterPlatformPixmap*>(pd);
49 if (!d->image.isNull() && d->image.d->paintEngine
50 && !d->image.d->paintEngine->isActive())
51 {
52 delete d->image.d->paintEngine;
53 d->image.d->paintEngine = nullptr;
54 }
55 }
56 }
57 ~QPixmapCacheEntry();
58 QPixmapCache::Key key;
59};
60
61QT_END_NAMESPACE
62
63#endif // QPIXMAPCACHE_P_H
64

source code of qtbase/src/gui/image/qpixmapcache_p.h