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//

// C++ Interface: SRender

//

// Description: This defines the class for SRender.

//

//

// Author: Andreas Theofilu <andreas@theosys.at>, (C) 2009

//

// Copyright: See COPYING file that comes with this distribution

//

//

#ifndef _RENDER_H

#define _RENDER_H

#include "config.h"

// Everything here is only available, if Mapnik is available!

#if defined HAVE_MAPNIK

#include <mapnik/map.hpp>

#include <mapnik/datasource_cache.hpp>

#include <mapnik/font_engine_freetype.hpp>

#include <mapnik/agg_renderer.hpp>

#include <mapnik/filter_factory.hpp>

#include <mapnik/color_factory.hpp>

#include <mapnik/image_util.hpp>

#include <mapnik/config_error.hpp>

#include <mapnik/load_map.hpp>

#include <mapnik/save_map.hpp>

#include <mapnik/version.hpp>

/* conversions */

#define DEGREES      180.0

#define SEMICIRCLES  0x80000000

#define SEMI2DEG(a)  (double)(a) * DEGREES / SEMICIRCLES

#define DEG2SEMI(a)  rint((double)(a) * SEMICIRCLES / DEGREES)

#define DEG2RAD(a)   (a) * M_PI / DEGREES

#define RAD2DEG(a)   (a) * DEGREES / M_PI

typedef enum {

	type_png	= 150,

	type_gif	= 151,

	type_jpg	= 152,

	type_xpm	= 153,

	type_tif	= 154,

	type_bmp	= 155

}TYPES;

typedef struct LINESYMBOLIZER

{

	unsigned  stroke;		// Color

	double    stroke_width;

	QString   stroke_linejoin;

	QString   stroke_linecap;

	double    stroke_dasharray[10];

	int       stroke_anz;		// number of entries in dasharray

	double    stroke_opacity;

	LINESYMBOLIZER *next;

}LINESYMBOLIZER;

typedef struct POLYGONSYMBOLIZER

{

	unsigned  fill;			// Color

	double    fill_opacity;

	POLYGONSYMBOLIZER *next;

}POLYGONSYMBOLIZER;

typedef struct TEXTSYMBOLIZER

{

	QString   name;

	QString   face_name;

	QString   placement;

	QString   alignment;

	double    size;

	unsigned  fill;			// Color

	double    halo_radius;

	double    wrap_width;

	double    dx;

	double    dy;

	double    mindistance;		// min distance between labels

	double    maxdistance;		// not used!

	TEXTSYMBOLIZER *next;

}TEXTSYMBOLIZER;

typedef struct POINTSYMBOLIZER

{

	QString   file;

	TYPES     type;		// enum TYPES

	double    width;

	double    height;

	bool      allow_overlap;

	POINTSYMBOLIZER *next;

}POINTSYMBOLIZER;

typedef struct POLYGONPATTERNSYMBOLIZER

{

	QString   file;

	TYPES     type;		// enum TYPES

	double    width;

	double    height;

	bool      allow_overlap;

	POLYGONPATTERNSYMBOLIZER *next;

}POLYGONPATTERNSYMBOLIZER;

typedef struct SHIELDSYMBOLIZER

{

	QString   name;

	QString   face_name;

	double    size;

	unsigned  fill;		// Color

	QString   placement;

	QString   file;

	TYPES     type;		// enum TYPES

	double    width;

	double    height;

	double    dx;

	double    dy;

	double    mindistance;	// min distance to next shield symbol

	double    maxdistance;	// not used!

	SHIELDSYMBOLIZER *next;

}SHIELDSYMBOLIZER;

typedef struct LINEPATTERNSYMBOLIZER

{

	QString   file;

	TYPES     type;		// enum TYPES

	double    width;

	double    height;

	LINEPATTERNSYMBOLIZER *next;

}LINEPATTERNSYMBOLIZER;

typedef struct RULE

{

	QString   name;

	QString   title;

	double    maxscale;

	double    minscale;

	QString   filter;

	bool      elsefilter;

	LINESYMBOLIZER		 *LineSymbolizer;

	POLYGONSYMBOLIZER	 *PolygonSymbolizer;

	TEXTSYMBOLIZER		 *TextSymbolizer;

	POINTSYMBOLIZER		 *PointSymbolizer;

	POLYGONPATTERNSYMBOLIZER *PolygonPatternSymbolizer;

	SHIELDSYMBOLIZER	 *ShieldSymbolizer;

	LINEPATTERNSYMBOLIZER    *LinePatternSymbolizer;

	mapnik::rule_type rl;		// the rule to be added to a style

	RULE *next;		// Pointer to next rule

}RULE;

typedef struct STYLE

{

	QString  name;

	RULE     *rule;		// Pointer to first rule node of the chain

	STYLE    *next;		// Pointer to next style

}STYLE;

typedef struct

{

	QString   type;

	QString   file;

	QString   parser;

	QString   url;

	QString   bbox;

	QString   host;

	QString   user;

	QString   dbname;

	QString   table;

	bool      estimate_extent;

	double    ext_lx;

	double    ext_ly;

	double    ext_rx;

	double    ext_ry;

}DATASOURCE;

typedef struct LAYER

{

	QString    name;	// The unique name

	QString    title;	// The title of the layer (optional)

	QString    abstract;	// Some short description (optional)

	bool       status;	// Is it active?

	bool	   clear_label; // Clear label cache?

	QString    srs;		// Projection

	double     minzoom;

	double     maxzoom;

	bool       queryable;

	QStringList Styles;	// The names of the Styles

	DATASOURCE Datasource;

	LAYER      *next;	// Pointer to next layer

}LAYER;

typedef struct

{

	unsigned   bgcolor;	// Color

	int        buf_size;

	QString    srs;

}MAP;

typedef enum {

	empty		 = 0,

	stroke_stroke	 = 100,

	stroke_width	 = 101,

	stroke_linejoin  = 102,

	stroke_linecap   = 103,

	stroke_opacity   = 104,

	stroke_dasharray = 105,

	fill		 = 106,

	fill_opacity	 = 107,

	type		 = 108,

	file		 = 109,

	host		 = 110,

	user		 = 111,

	dbname		 = 112,

	table		 = 113,

	estimate_extent  = 114,

	extent		 = 115,

	parser__	 = 116,

	url		 = 117,

	bbox		 = 118

}NAMES;

typedef enum {

	in_root			= 0,

	in_map			= 100,

	in_style		= 101,

	in_rule			= 102,

	in_linesymbolizer	= 103,

	in_pointsymbolizer	= 104,

	in_polygonsymbolizer	= 105,

	in_textsymbolizer	= 106,

	in_polygonpatternsymbolizer = 107,

	in_layer		= 108,

	in_datasource		= 109,

	in_symbolizer		= 110,

	in_shieldsymbolizer	= 111,

	in_linepatternsymbolizer = 112,

	in_elsefilter		= 113

}CONTAINER;

typedef struct

{

	int id;

	CONTAINER con;

	QString name;

}TOKEN;

using namespace mapnik;

class SRender : public QXmlDefaultHandler

{

	public:

	   enum map_type

	   {

	      MAP_SHAPE,

	      MAP_GIS,

	      MAP_OSM,

	      map_type_MAX

	   };

	public:

	   SRender();

	   ~SRender();

	   void setDrawArea(int, int);

	   QPixmap pixmap() { return pxmap; };

	   void setShapePath(const QString &str) { if (str.isNull()) return; shapePath = str; };

	   void setXmlPath(const QString &path) { if (path.isNull()) return; XmlPath = path; };

	   bool getMap(double lx, double ly, double rx, double ry);

	   inline void setMapType(map_type mt) { __map_type = mt; }

	   inline map_type getMapType() { return __map_type; }

	   // Functions to parse the XML file

	   bool startDocument ();

	   bool startElement (const QString&, const QString&, const QString& , const QXmlAttributes&);

	   bool endElement (const QString&, const QString&, const QString&);

	   bool characters (const QString&);

	protected:

	   void setMaxExtent(double lx, double ly, double rx, double ry);

	   QString findIcon(QString ic);

	private:

	   QString getKey (int pos);

	   TYPES getType(QString ty);

	   char *getTypeText(TYPES type);

	   bool getBool(QString b);

	   unsigned colorToUInt(QString col);

	   color setColor(unsigned);

	   STYLE *findStyle(QString name);

	   RULE *getLastRule(RULE *first);

	   POINTSYMBOLIZER *getLastPointSymbolizer(POINTSYMBOLIZER *first);

	   LINESYMBOLIZER *getLastLineSymbolizer(LINESYMBOLIZER *first);

	   POLYGONSYMBOLIZER *getLastPolygonSymbolizer(POLYGONSYMBOLIZER *first);

	   TEXTSYMBOLIZER *getLastTextSymbolizer(TEXTSYMBOLIZER *first);

	   POLYGONPATTERNSYMBOLIZER *getLastPolygonPatternSymbolizer(POLYGONPATTERNSYMBOLIZER *first);

	   SHIELDSYMBOLIZER *getLastShieldSymbolizer(SHIELDSYMBOLIZER *first);

	   LINEPATTERNSYMBOLIZER *getLastLinePatternSymbolizer(LINEPATTERNSYMBOLIZER *first);

	   STYLE *allocStyle();

	   RULE *allocRule();

	   LAYER *allocLayer();

	   POINTSYMBOLIZER *allocPointSymbolizer();

	   LINESYMBOLIZER *allocLineSymbolizer();

	   POLYGONSYMBOLIZER *allocPolygonSymbolizer();

	   TEXTSYMBOLIZER *allocTextSymbolizer();

	   POLYGONPATTERNSYMBOLIZER *allocPolygonPatternSymbolizer();

	   SHIELDSYMBOLIZER *allocShieldSymbolizer();

	   LINEPATTERNSYMBOLIZER *allocLinePatternSymbolizer();

	private:

	   QPixmap pxmap;

	   QString shapePath;

	   QString pluginPath;

	   QString fontPath;

	   QString XmlPath;

	   bool geographic;

	   map_type __map_type;

	   int _width, _height;

	   CONTAINER Container;

	   bool ControlSet;

	   int Field;

	   int XmlLine;	// Line number of the current position in XML file

	   double _lx, _ly, _rx, _ry;

	   TYPES Types;

	   NAMES Names;

	   MAP MapPars;

	   Map m;

	   LAYER *Lay, *firstLayer, *lastLayer;

	   STYLE *Style, *firstStyle, *lastStyle;

	   RULE *Rule;

	   LINESYMBOLIZER		*LineSymbolizer;

	   POLYGONSYMBOLIZER	 	*PolygonSymbolizer;

	   TEXTSYMBOLIZER		*TextSymbolizer;

	   POINTSYMBOLIZER		*PointSymbolizer;

	   POLYGONPATTERNSYMBOLIZER 	*PolygonPatternSymbolizer;

	   SHIELDSYMBOLIZER	 	*ShieldSymbolizer;

	   LINEPATTERNSYMBOLIZER    	*LinePatternSymbolizer;

};

#endif // HAVE_MAPNIK

#endif // _RENDER_H