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113 lines
2.7 KiB
C++
113 lines
2.7 KiB
C++
#ifndef OFFLINEMAP_H
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#define OFFLINEMAP_H
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#include <QTransform>
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#include "map.h"
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#include "tar.h"
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#include "ozf.h"
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#include "coordinates.h"
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#include "projection.h"
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class QIODevice;
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class QImage;
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class OfflineMap : public Map
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{
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Q_OBJECT
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public:
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OfflineMap(const QString &fileName, QObject *parent = 0);
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OfflineMap(const QString &fileName, Tar &tar, QObject *parent = 0);
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~OfflineMap();
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const QString &name() const {return _name;}
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QRectF bounds() const;
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qreal resolution(const QPointF &p) const;
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qreal zoom() const {return _zoom;}
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qreal zoomFit(const QSize &size, const RectC &br);
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qreal zoomFit(qreal resolution, const Coordinates &c);
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qreal zoomIn();
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qreal zoomOut();
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QPointF ll2xy(const Coordinates &c);
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Coordinates xy2ll(const QPointF &p);
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void draw(QPainter *painter, const QRectF &rect);
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void load();
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void unload();
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bool isValid() const {return _valid;}
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const QString &errorString() const {return _errorString;}
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QPointF ll2pp(const Coordinates &c) const
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{return _projection->ll2xy(c);}
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QPointF xy2pp(const QPointF &p) const
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{return _inverted.map(p);}
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QPointF pp2xy(const QPointF &p) const
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{return _transform.map(p);}
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private:
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struct ReferencePoint {
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QPoint xy;
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Coordinates ll;
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QPointF pp;
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};
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struct ProjectionSetup {
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double latitudeOrigin;
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double longitudeOrigin;
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double scale;
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double falseEasting;
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double falseNorthing;
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double standardParallel1;
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double standardParallel2;
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int zone;
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};
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int parse(QIODevice &device, QList<ReferencePoint> &points,
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QString &projection, ProjectionSetup &setup, QString &datum);
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bool parseMapFile(QIODevice &device, QList<ReferencePoint> &points,
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QString &projection, ProjectionSetup &setup, QString &datum);
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bool totalSizeSet();
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bool createProjection(const QString &datum, const QString &projection,
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const ProjectionSetup &setup, QList<ReferencePoint> &points);
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bool simpleTransformation(const QList<ReferencePoint> &points);
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bool affineTransformation(const QList<ReferencePoint> &points);
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bool computeTransformation(const QList<ReferencePoint> &points);
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bool computeResolution(QList<ReferencePoint> &points);
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bool getTileInfo(const QStringList &tiles, const QString &path = QString());
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bool getImageInfo(const QString &path);
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void drawTiled(QPainter *painter, const QRectF &rect);
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void drawOZF(QPainter *painter, const QRectF &rect);
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void drawImage(QPainter *painter, const QRectF &rect);
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void rescale(int zoom);
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QString _name;
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bool _valid;
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QString _errorString;
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QSize _size;
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Projection *_projection;
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QTransform _transform, _inverted;
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qreal _resolution;
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OZF _ozf;
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Tar _tar;
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QString _tarPath;
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QImage *_img;
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QString _imgPath;
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QSize _tileSize;
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QString _tileName;
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int _zoom;
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QPointF _scale;
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};
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#endif // OFFLINEMAP_H
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