slippymap.h Example Fileembedded/lightmaps/slippymap.h/**************************************************************************** ** ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/ ** ** This file is part of the demonstration applications of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** GNU Lesser General Public License Usage ** 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. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU General ** Public License version 3.0 as published by the Free Software Foundation ** and appearing in the file LICENSE.GPL included in the packaging of this ** file. Please review the following information to ensure the GNU General ** Public License version 3.0 requirements will be met: ** http://www.gnu.org/copyleft/gpl.html. ** ** Other Usage ** Alternatively, this file may be used in accordance with the terms and ** conditions contained in a signed written agreement between you and Nokia. ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef SLIPPYMAP_H #define SLIPPYMAP_H #include <QNetworkAccessManager> #include <QPixmap> #include <QUrl> class QNetworkReply; class QPainter; class SlippyMap: public QObject { Q_OBJECT public: SlippyMap(QObject *parent = 0); void invalidate(); void render(QPainter *p, const QRect &rect); void pan(const QPoint &delta); int width; int height; int zoom; qreal latitude; qreal longitude; signals: void updated(const QRect &rect); private slots: void handleNetworkData(QNetworkReply *reply); void download(); protected: QRect tileRect(const QPoint &tp); private: QPoint m_offset; QRect m_tilesRect; QPixmap m_emptyTile; QHash<QPoint, QPixmap> m_tilePixmaps; QNetworkAccessManager m_manager; QUrl m_url; }; #endif |