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107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
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#ifndef MAPSFORGEMAP_H
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#define MAPSFORGEMAP_H
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#include <QtConcurrent>
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#include <QPixmapCache>
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#include "mapsforge/mapdata.h"
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#include "mapsforge/rastertile.h"
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#include "projection.h"
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#include "transform.h"
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#include "map.h"
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class MapsforgeMapJob : public QObject
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{
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Q_OBJECT
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public:
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MapsforgeMapJob(const QList<Mapsforge::RasterTile> &tiles) : _tiles(tiles)
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{
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connect(&_watcher, &QFutureWatcher<void>::finished, this,
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&MapsforgeMapJob::handleFinished);
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}
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void run()
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{
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_future = QtConcurrent::map(_tiles, &Mapsforge::RasterTile::render);
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_watcher.setFuture(_future);
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}
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signals:
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void finished(const QList<Mapsforge::RasterTile> &);
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private slots:
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void handleFinished()
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{
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for (int i = 0; i < _tiles.size(); i++) {
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Mapsforge::RasterTile &mt = _tiles[i];
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QPixmap pm(QPixmap::fromImage(mt.img()));
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if (pm.isNull())
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continue;
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QPixmapCache::insert(mt.key(), pm);
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}
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emit finished(_tiles);
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deleteLater();
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}
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private:
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QFutureWatcher<void> _watcher;
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QFuture<void> _future;
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QList<Mapsforge::RasterTile> _tiles;
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};
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class MapsforgeMap : public Map
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{
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Q_OBJECT
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public:
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MapsforgeMap(const QString &fileName, QObject *parent = 0);
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QRectF bounds() {return _bounds;}
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RectC llBounds() {return _data.bounds();}
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int zoom() const {return _zoom;}
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void setZoom(int zoom);
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int zoomFit(const QSize &size, const RectC &rect);
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int zoomIn();
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int zoomOut();
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void load();
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void unload();
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void setOutputProjection(const Projection &projection);
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QPointF ll2xy(const Coordinates &c)
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{return _transform.proj2img(_projection.ll2xy(c));}
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Coordinates xy2ll(const QPointF &p)
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{return _projection.xy2ll(_transform.img2proj(p));}
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void draw(QPainter *painter, const QRectF &rect, Flags flags);
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bool isValid() const {return _data.isValid();}
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QString errorString() const {return _data.errorString();}
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private slots:
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void jobFinished(const QList<Mapsforge::RasterTile> &tiles);
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private:
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Transform transform(int zoom) const;
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void updateTransform();
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bool isRunning(const QString &key) const;
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void addRunning(const QList<Mapsforge::RasterTile> &tiles);
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void removeRunning(const QList<Mapsforge::RasterTile> &tiles);
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Mapsforge::MapData _data;
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int _zoom;
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Projection _projection;
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Transform _transform;
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QRectF _bounds;
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QSet<QString> _running;
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};
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#endif // MAPSFORGEMAP_H
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