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128 lines
3.0 KiB
C++
128 lines
3.0 KiB
C++
#ifndef KMZMAP_H
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#define KMZMAP_H
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#include "projection.h"
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#include "transform.h"
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#include "rectd.h"
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#include "map.h"
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class QXmlStreamReader;
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class QZipReader;
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class Image;
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class KMZMap : public Map
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{
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Q_OBJECT
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public:
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KMZMap(const QString &fileName, const Projection &proj, QObject *parent = 0);
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QRectF 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 &br);
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int zoomIn();
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int 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, Flags flags);
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void load();
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void unload();
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void setInputProjection(const Projection &projection);
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void setDevicePixelRatio(qreal deviceRatio, qreal mapRatio);
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bool isValid() const {return _valid;}
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QString errorString() const {return _errorString;}
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private:
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class Overlay {
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public:
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Overlay(const QString &path, const QSize &size, const RectC &bbox,
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double rotation, const Projection *proj, qreal ratio);
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bool operator==(const Overlay &other) const
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{return _path == other._path;}
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QPointF ll2xy(const Coordinates &c) const
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{return QPointF(_transform.proj2img(_proj->ll2xy(c))) / _ratio;}
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Coordinates xy2ll(const QPointF &p) const
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{return _proj->xy2ll(_transform.img2proj(p * _ratio));}
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const QString &path() const {return _path;}
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const RectC &bbox() const {return _bbox;}
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const QRectF &bounds() const {return _bounds;}
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qreal resolution(const QRectF &rect) const;
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qreal rotation() const {return _rotation;}
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void draw(QPainter *painter, const QRectF &rect, Flags flags);
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void load(QZipReader *zip);
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void unload();
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void setProjection(const Projection *proj);
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void setDevicePixelRatio(qreal ratio);
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private:
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QString _path;
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QSize _size;
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QRectF _bounds;
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RectC _bbox;
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qreal _rotation;
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Image *_img;
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const Projection *_proj;
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Transform _transform;
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qreal _ratio;
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};
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struct Zoom {
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int first;
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int last;
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Zoom() : first(-1), last(-1) {}
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Zoom(int first, int last) : first(first), last(last) {}
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};
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struct Bounds {
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RectC ll;
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QRectF xy;
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Bounds() {}
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Bounds(const RectC &ll, const QRectF &xy) : ll(ll), xy(xy) {}
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};
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void kml(QXmlStreamReader &reader, QZipReader &zip);
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void document(QXmlStreamReader &reader, QZipReader &zip);
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void folder(QXmlStreamReader &reader, QZipReader &zip);
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void groundOverlay(QXmlStreamReader &reader, QZipReader &zip);
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RectC latLonBox(QXmlStreamReader &reader, double *rotation);
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QString icon(QXmlStreamReader &reader);
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double number(QXmlStreamReader &reader);
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void draw(QPainter *painter, const QRectF &rect, int mapIndex, Flags flags);
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void computeZooms();
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void computeBounds();
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static bool resCmp(const Overlay &m1, const Overlay &m2);
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static bool xCmp(const Overlay &m1, const Overlay &m2);
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static bool yCmp(const Overlay &m1, const Overlay &m2);
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QList<Overlay> _maps;
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QVector<Zoom> _zooms;
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QVector<Bounds> _bounds;
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int _zoom;
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int _mapIndex;
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QZipReader *_zip;
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qreal _adjust;
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Projection _projection;
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qreal _ratio;
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bool _valid;
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QString _errorString;
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};
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#endif // KMZMAP_H
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