101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
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/*==============================================================================
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Copyright 2018 by Roland Rabien
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For more information visit www.rabiensoftware.com
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==============================================================================*/
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#pragma once
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//==============================================================================*/
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// Fetches map files from OSM servers
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class OpenStreetMaps
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{
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public:
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enum TileSource
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{
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OpenStreetMap,
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OpenCycleMap,
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OpenCycleMapTransport,
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OpenCycleMapLandscape,
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StamenTerrain,
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MapQuestOSM,
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MapQuestOpenAerial,
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MapQuestOpenStreetMap,
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};
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OpenStreetMaps();
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~OpenStreetMaps();
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/** Set this or map tiles will be stored in the temp directory */
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void setMapTileDir (File f) { mapTileDir = f; }
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Image fetchTile (int zoom, int x, int y);
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int getMapWidthPixels (int zoom);
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int getMapWidthTiles (int zoom);
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juce::Point<double> coordinateToDisplay (juce::Point<double> coordinate, int zoom);
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juce::Point<double> displayToCoordinate (const juce::Point<double> point, int zoom);
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juce::Point<double> tileForCoordinate (double lat, double lng, int zoom);
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void clearQueue();
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TileSource getTileSource();
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void setTileSource (TileSource t);
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class Listener
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{
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public:
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virtual ~Listener() {}
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virtual void tileFetched (int zoom, int x, int y) = 0;
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};
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void addListener (Listener* listener) { listeners.add (listener); }
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void removeListener (Listener* listener) { listeners.remove (listener); }
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private:
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void finished (AsyncDownload* task, juce::MemoryBlock data, bool success);
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void startRequest();
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int getNumServers();
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int getServer();
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class TileReq
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{
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public:
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TileReq (int z_, int x_, int y_)
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{
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zoom = z_;
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x = x_;
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y = y_;
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server = -1;
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}
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bool operator==(const TileReq& b)
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{
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return zoom == b.zoom && x == b.x && y == b.y;
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}
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std::unique_ptr<AsyncDownload> reply;
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int zoom;
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int x;
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int y;
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int server;
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};
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OwnedArray<TileReq> requests;
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OwnedArray<TileReq> cancelledRequests;
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File mapTileDir;
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HashMap<String, Image> cache;
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TileSource tileSource;
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Array<int> serversInUse;
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ListenerList<Listener> listeners;
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const int tilesize = 256;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (OpenStreetMaps)
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};
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