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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLPIXMAPCACHE_H
#define QMLPIXMAPCACHE_H
#include <QtCore/QString>
#include <QtGui/QPixmap>
#include <QtCore/qurl.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QmlEngine;
class QNetworkReply;
class QmlImageReader;
class QmlPixmapReplyPrivate;
class Q_DECLARATIVE_EXPORT QmlPixmapReply : public QObject
{
Q_OBJECT
public:
~QmlPixmapReply();
enum Status { Ready, Error, Unrequested, Loading };
Status status() const;
const QUrl &url() const;
Q_SIGNALS:
void finished();
void downloadProgress(qint64, qint64);
protected:
bool event(QEvent *event);
private:
void addRef();
bool release(bool defer=false);
bool isLoading() const;
void setLoading();
private:
QmlPixmapReply(QmlImageReader *reader, const QUrl &url);
Q_DISABLE_COPY(QmlPixmapReply)
Q_DECLARE_PRIVATE(QmlPixmapReply)
friend class QmlImageRequestHandler;
friend class QmlImageReader;
friend class QmlPixmapCache;
};
class Q_DECLARATIVE_EXPORT QmlPixmapCache
{
public:
static QmlPixmapReply::Status get(const QUrl& url, QPixmap *pixmap);
static QmlPixmapReply *request(QmlEngine *, const QUrl& url);
static void cancel(const QUrl& url, QObject *obj);
static int pendingRequests();
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QMLPIXMAPCACHE_H
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