2 Situare - A location system for Facebook
3 Copyright (C) 2010 Ixonos Plc. Authors:
5 Sami Rämö - sami.ramo@ixonos.com
6 Jussi Laitinen - jussi.laitinen@ixonos.com
8 Situare is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License
10 version 2 as published by the Free Software Foundation.
12 Situare is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Situare; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
30 #include "mapfetcher.h"
37 /// Logic for controlling map functionality. Does also include static methods for
38 /// converting coordinates.
39 /// \author Sami Rämö - sami.ramo (at) ixonos.com
40 class MapEngine : public QObject
44 /// \brief Constructor
46 /// \param mapView View for map
47 /// \param parent Parent
48 /// Does create and add scene to map view.
49 MapEngine(MapView *mapView, QWidget *parent = 0);
51 /// \brief Convert tile x & y numbers to MapScene coordinates
53 /// \param zoomLevel Zoom level
54 /// \param tileNumber x & y number of the tile
55 /// \return MapScene coordinate
56 static QPoint convertTileNumberToSceneCoordinate(int zoomLevel, QPoint tileNumber)
58 int x = tileNumber.x() * TILE_SIZE_X * pow(2, MAX_ZOOM_LEVEL - zoomLevel);
59 int y = tileNumber.y() * TILE_SIZE_Y * pow(2, MAX_ZOOM_LEVEL - zoomLevel);
64 /// \brief Set view location
66 /// \param latLonCoordinate Latitude & longitude coordinates for location
67 void setViewLocation(QPointF latLonCoordinate);
69 QPoint latLonToTile(qreal latitude, qreal longitude, int zoom);
72 * @brief Transforms tile x value to longitude.
74 * @fn tileXToLongitude
75 * @param x tile x value
76 * @param zoom zoom value
77 * @return qreal longitude
79 qreal tileXToLongitude(int x, int zoom);
82 * @brief Transforms tile y value to latitude.
85 * @param y tile y value
86 * @param zoom zoom value
87 * @return qreal latitude
89 qreal tileYToLatitude(int y, int zoom);
93 * @brief Slot for received map tile images
95 * Does add MapTile objects to MapScene. Zoom level and location is parsed from URL.
96 * @fn mapImageReceived
97 * @param url URL of the received image
98 * @param pixmap Received pixmap
100 void mapImageReceived(const QUrl &url, const QPixmap &pixmap);
103 static const int TILE_SIZE_X = 256; ///< Tile image size in x direction
104 static const int TILE_SIZE_Y = 256; ///< Tile image size in y direction
105 static const int MIN_ZOOM_LEVEL = 0; ///< Minimum zoom level
106 static const int MAX_ZOOM_LEVEL = 18; ///< Maximum zoom level
109 MapView *m_mapView; ///< View for viewing map
110 MapScene *m_mapScene; ///< Scene for map tiles
111 MapFetcher *m_mapFetcher; ///< Fetcher for map tiles
112 int m_zoomLevel; ///< Current zoom level
115 #endif // MAPENGINE_H