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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtLocation module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#ifndef QGEOTILEFETCHER_H
#define QGEOTILEFETCHER_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 <QObject>
#include <QtLocation/private/qlocationglobal_p.h>
#include "qgeomaptype_p.h"
#include "qgeotiledmappingmanagerengine_p.h"
QT_BEGIN_NAMESPACE
class QGeoMapRequestOptions;
class QGeoTileFetcherPrivate;
class QGeoTiledMappingManagerEngine;
class QGeoTiledMapReply;
class QGeoTileSpec;
class Q_LOCATION_PRIVATE_EXPORT QGeoTileFetcher : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QGeoTileFetcher)
public:
QGeoTileFetcher(QGeoMappingManagerEngine *parent);
virtual ~QGeoTileFetcher();
public Q_SLOTS:
void updateTileRequests(const QSet<QGeoTileSpec> &tilesAdded, const QSet<QGeoTileSpec> &tilesRemoved);
private Q_SLOTS:
void cancelTileRequests(const QSet<QGeoTileSpec> &tiles);
void requestNextTile();
void finished();
Q_SIGNALS:
void tileFinished(const QGeoTileSpec &spec, const QByteArray &bytes, const QString &format);
void tileError(const QGeoTileSpec &spec, const QString &errorString);
protected:
QGeoTileFetcher(QGeoTileFetcherPrivate &dd, QGeoMappingManagerEngine *parent);
void timerEvent(QTimerEvent *event);
QAbstractGeoTileCache::CacheAreas cacheHint() const;
virtual bool initialized() const;
virtual bool fetchingEnabled() const;
private:
virtual QGeoTiledMapReply *getTileImage(const QGeoTileSpec &spec) = 0;
virtual void handleReply(QGeoTiledMapReply *reply, const QGeoTileSpec &spec);
Q_DISABLE_COPY(QGeoTileFetcher)
friend class QGeoTiledMappingManagerEngine;
};
QT_END_NAMESPACE
#endif
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