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102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
#ifndef MAPSFORGE_RASTERTILE_H
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#define MAPSFORGE_RASTERTILE_H
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#include <QPixmap>
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#include "map/projection.h"
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#include "map/transform.h"
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#include "style.h"
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#include "mapdata.h"
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class MapsforgeMap;
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class TextItem;
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namespace Mapsforge {
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class RasterTile
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{
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public:
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RasterTile(const Projection &proj, const Transform &transform, int zoom,
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const QRect &rect, qreal ratio, const QList<MapData::Path> &paths,
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const QList<MapData::Point> &points) : _proj(proj), _transform(transform),
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_zoom(zoom), _rect(rect), _ratio(ratio),
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_pixmap(rect.width() * ratio, rect.height() * ratio), _paths(paths),
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_points(points), _valid(false) {}
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int zoom() const {return _zoom;}
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QPoint xy() const {return _rect.topLeft();}
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const QPixmap &pixmap() const {return _pixmap;}
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bool isValid() const {return _valid;}
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void render();
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private:
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class PathInstruction
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{
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public:
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PathInstruction() : _render(0), _path(0) {}
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PathInstruction(const Style::PathRender *render, MapData::Path *path)
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: _render(render), _path(path) {}
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bool operator<(const PathInstruction &other) const
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{
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if (_path->layer == other._path->layer)
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return _render->zOrder() < other._render->zOrder();
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else
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return (_path->layer < other._path->layer);
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}
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const Style::PathRender *render() const {return _render;}
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MapData::Path *path() {return _path;}
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private:
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const Style::PathRender *_render;
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MapData::Path *_path;
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};
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struct Key {
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Key(int zoom, bool closed, const QVector<MapData::Tag> &tags)
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: zoom(zoom), closed(closed), tags(tags) {}
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bool operator==(const Key &other) const
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{
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return zoom == other.zoom && closed == other.closed
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&& tags == other.tags;
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}
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int zoom;
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bool closed;
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const QVector<MapData::Tag> &tags;
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};
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friend HASH_T qHash(const RasterTile::Key &key);
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friend HASH_T qHash(const RasterTile::PathInstruction &pi);
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QVector<PathInstruction> pathInstructions();
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QPointF ll2xy(const Coordinates &c) const
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{return _transform.proj2img(_proj.ll2xy(c));}
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void processPointLabels(QList<TextItem*> &textItems);
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void processAreaLabels(QList<TextItem*> &textItems);
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void processLineLabels(QList<TextItem*> &textItems);
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QPainterPath painterPath(const Polygon &polygon) const;
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void drawTextItems(QPainter *painter, const QList<TextItem*> &textItems);
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void drawPaths(QPainter *painter);
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Projection _proj;
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Transform _transform;
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int _zoom;
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QRect _rect;
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qreal _ratio;
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QPixmap _pixmap;
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QList<MapData::Path> _paths;
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QList<MapData::Point> _points;
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bool _valid;
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};
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inline HASH_T qHash(const RasterTile::Key &key)
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{
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return ::qHash(key.zoom) ^ ::qHash(key.tags);
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}
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}
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#endif // MAPSFORGE_RASTERTILE_H
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