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GPXSee/src/map/mapsforgemap.h
2023-09-14 18:36:03 +02:00

104 lines
2.3 KiB
C++

#ifndef MAPSFORGEMAP_H
#define MAPSFORGEMAP_H
#include <QtConcurrent>
#include "mapsforge/mapdata.h"
#include "mapsforge/rastertile.h"
#include "projection.h"
#include "transform.h"
#include "map.h"
class MapsforgeMapJob : public QObject
{
Q_OBJECT
public:
MapsforgeMapJob(const QList<Mapsforge::RasterTile> &tiles)
: _tiles(tiles) {}
void run()
{
connect(&_watcher, &QFutureWatcher<void>::finished, this,
&MapsforgeMapJob::handleFinished);
_future = QtConcurrent::map(_tiles, &Mapsforge::RasterTile::render);
_watcher.setFuture(_future);
}
void cancel(bool wait)
{
_future.cancel();
if (wait)
_future.waitForFinished();
}
const QList<Mapsforge::RasterTile> &tiles() const {return _tiles;}
signals:
void finished(MapsforgeMapJob *job);
private slots:
void handleFinished() {emit finished(this);}
private:
QFutureWatcher<void> _watcher;
QFuture<void> _future;
QList<Mapsforge::RasterTile> _tiles;
};
class MapsforgeMap : public Map
{
Q_OBJECT
public:
MapsforgeMap(const QString &fileName, QObject *parent = 0);
QRectF bounds() {return _bounds;}
RectC llBounds() {return _data.bounds();}
int zoom() const {return _zoom;}
void setZoom(int zoom);
int zoomFit(const QSize &size, const RectC &rect);
int zoomIn();
int zoomOut();
void load(const Projection &in, const Projection &out, qreal deviceRatio,
bool hidpi);
void unload();
QPointF ll2xy(const Coordinates &c)
{return _transform.proj2img(_projection.ll2xy(c));}
Coordinates xy2ll(const QPointF &p)
{return _projection.xy2ll(_transform.img2proj(p));}
void draw(QPainter *painter, const QRectF &rect, Flags flags);
bool isValid() const {return _data.isValid();}
QString errorString() const {return _data.errorString();}
static Map *create(const QString &path, const Projection &proj, bool *isMap);
private slots:
void jobFinished(MapsforgeMapJob *job);
private:
QString key(int zoom, const QPoint &xy) const;
Transform transform(int zoom) const;
void updateTransform();
bool isRunning(int zoom, const QPoint &xy) const;
void runJob(MapsforgeMapJob *job);
void removeJob(MapsforgeMapJob *job);
void cancelJobs(bool wait);
Mapsforge::MapData _data;
Mapsforge::Style _style;
int _zoom;
Projection _projection;
Transform _transform;
QRectF _bounds;
qreal _tileRatio;
QList<MapsforgeMapJob*> _jobs;
};
#endif // MAPSFORGEMAP_H