/***************************************************************************
 *            draw.h
 *
 *  Thu Jul 19 19:00:10 2007
 *  Copyright  2007  Steffen Pohle
 *  steffen@gulpe.de
 ****************************************************************************/

/*
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

 
#ifndef _DRAW_H_
#define _DRAW_H_

#include "osmroute.h"
#include "map.h"
#include "gps.h"

#ifdef HAVE_GTK
#include "gtk_port.h"
#endif

#ifdef HAVE_WINAPI
#include "wince_port.h"
#endif

#ifdef HAVE_SDL
#include "sdl_port.h"
#endif

#ifdef ANDROID
#include "android_port.h"
#endif

#define DRAW_GPS		0x0001
#define DRAW_GPSFOLLOW	0x0002
#define DRAW_DEBUG      0x0004

#define POLYGON_MAX_POINTS 2048


enum {
	DRAW_BTN_NONE = 0,
	DRAW_BTN_SCALEINC,
	DRAW_BTN_SCALEDEC,
	DRAW_BTN_GPS,
	DRAW_BTN_DEBUG
};

#define DRAW_BTN_WIDTH 32
#define DRAW_BTN_MAX 4


struct line_style {
	struct color borderc;
	struct color c;
	float width;
};

enum {
	COLOR_white,
	COLOR_red,
	COLOR_blue,
	COLOR_green,
	COLOR_brown,
	COLOR_pink,
	COLOR_yellow,
	COLOR_greengray,
	COLOR_redgray,
	COLOR_bluegray,

	COLOR_MAX
};
#define COLOR_steps 4

/*
 * variables definitions..
 */
extern float view_lon;
extern float view_lat;
extern float view_scale;
extern int view_flags;

extern struct image *img_map;
extern struct map_pos img_map_pos;
extern float img_map_scale;

extern struct map_pos select_pos;
extern int select_enabled;


extern struct line_style draw_linestyle[MWAY_MAX];
extern struct color color_polygon[MAREA_MAX];
extern struct color color_bg;
extern struct color color_fg;
extern int draw_type[MAREA_MAX+MWAY_MAX];
extern struct color color[COLOR_MAX][COLOR_steps];


/*
 * functions definitions, called from outside the drawing routines
 */
extern void draw_setscale (int newscale);
extern void draw_setscalef (float newscale);
extern void draw_set_pointerpos (float lon, float lat, int mode);
extern void draw_set_flag (int flag);
extern void draw_del_flag (int flag);

extern iPoint draw_geo2screen (float center_lon, float center_lat, float lon, float lat);
extern void draw_screen2geo (int x, int y, float *lon, float *lat);

extern void draw_init ();
extern void draw_init_color ();

extern void draw ();

/*
 * the drawing prozess
 */
// extern void draw ();     // it is defined inside osmroute.h
extern void draw_redrawmap ();

extern void draw_line (struct image *img, int x1, int y1, int x2, int y2, struct line_style style);
extern void draw_lineway (struct image *img, int x1, int y1, int x2, int y2, struct line_style style);
extern void draw_rectangle (struct image *img, int x1, int y1, int x2, int y2, struct line_style style);
extern void draw_polygonstart ();
extern void draw_polygonadd (int x, int y);
extern void draw_polygonfinish (struct image *img, struct line_style ls, struct color c, int border);



/*
 * functions which we need inside the *_gfx.c files... needed for drawing
 */
extern iPoint gfx_screensize;
extern void gfx_resize (int width, int height);
extern void gfx_init (int width, int height);
extern void gfx_flip ();
extern int gfx_color_alloc (struct color *c, unsigned short int r, unsigned short int g, unsigned short int b);

extern void gfx_draw_img (struct image *dimg, int dx, int dy, int dw, int dh, struct image *simg, int sx, int sy);
extern void gfx_draw_line (struct image *dimg, int x1, int y1, int x2, int y2, struct line_style style);
extern void gfx_draw_text (struct image *dimg, int x, int y, char *text, struct color *c);
extern void gfx_draw_polygon (struct image *dimg, iPoint *p, int pcnt, struct line_style style, struct color c);
extern void gfx_draw_rect (struct image *dimg, int x1, int y1, int x2, int y2, struct color *c);
extern void gfx_clear (struct image *dimg, struct color *c);

extern struct image *gfx_img_alloc (int w, int h);
extern void gfx_img_free (struct image *img);
extern struct image* gfx_img_load (char *name);


/* 
 * draw_gps.c
 */
extern struct gps_data drawgps_data;
extern unsigned long long int drawgps_on_way_id;
extern unsigned short int drawgps_on_way_sid;
extern char drawgps_on_way_name[MAP_W_NAMELEN];

extern void drawgps_set_pos (struct gps_data *gpsdata);
extern void draw_gui_gps ();


/*
 * draw_route.c
 */
extern void draw_gui_route ();


/*
 * draw_favorites.c
 */
extern void draw_gui_favorites ();


/*
 * draw_gui.c
 */

extern unsigned long long int mouse_over_way_id;
extern unsigned short int mouse_over_way_sid;
extern char mouse_over_way_name[MAP_W_NAMELEN];

extern iPoint mousepos;
extern int mousebtn;
extern time_t mousebtnpresstime;
extern iPoint mousebtnpresspos;
extern int mousebtnpresslongtime;
extern unsigned long long int mouse_over_way_id;
extern unsigned short int mouse_over_way_sid;
extern char mouse_over_way_name[MAP_W_NAMELEN];



extern void draw_mousemove (int x, int y, int btn);
extern void draw_mousebtndown (int x, int y, int btn);
extern void draw_mousebtnup (int x, int y, int btn);
extern void draw_mouseloop ();
extern void draw_gui ();



#endif