/*
   Enhanced NCSA Mosaic from Spyglass
   "Guitar"

   Copyright 1994 Spyglass, Inc.
   All Rights Reserved

   Author(s):
   Jim Seidman      jim@spyglass.com
 */

#ifdef FEATURE_CLIENT_IMAGEMAP

struct _circle {
	short x;		/* Center point */
	short y;
	short r2;		/* radius squared */
};	

enum _shapetype {
	SHAPE_UNKNOWN = 0,
	SHAPE_RECT,
	SHAPE_CIRCLE,
	SHAPE_POLYGON
};

struct _vertex {
	short x;
	short y;
};

struct MapArea {
	enum _shapetype type;
	union {
		RECT theRect;
		struct _circle theCirc;
		struct _poly {
			RECT rBound;	/* Bounding rectangle for polygon */
			struct _vertex *pVertices;	/* separately allocated memory */
			short nVertCount;
		} thePoly;
	} shape;
	unsigned long hrefOffset;	/* == -1 if NOHREF */
};

struct MapInfo {
	int refCount;
	unsigned int flags;
	int nAreaCount;
	struct MapArea *pAreas;
	char *pool;
	int nPoolSize;
	BOOL bLoading;
};

/* Possible settings for "flags" field */
#define MAP_MISSING		0x0002	/* The map wasn't in the file */
#define MAP_NOTLOADED	0x0004	/* We haven't even tried to load the map */

struct Params_Map_Fetch {
	struct MapInfo *pMap;

	/* Used internally */
	HTRequest *request;
	int nStatus;
	BOOL fNotFromCache;
};
int Map_Fetch_Async(struct Mwin *tw, int nState, void **ppInfo);

struct _www;	/* so will compile under gcc */

BOOL Map_NukeMaps(struct _www *pdoc);
PUBLIC HTStream *HTMLToMap(struct Mwin *tw, HTRequest * request, void *param, HTFormat input_format, HTFormat output_format, HTStream *output_stream);

struct _MapContext *Map_StartMap(const char *name, const char *url, const char *base);
void Map_AddToMap(struct _MapContext *, const char *coords, const char *href, BOOL nohref, const char *shape);
void Map_EndMap(struct _MapContext *);
void Map_AbortMap(struct _MapContext *mc);

BOOL Map_IsValid(struct MapInfo *map);
const char *Map_FindLink(struct MapInfo *pmap, int x, int y);
void Map_Unload(struct MapInfo *pmap);
struct MapInfo *Map_CreatePlaceholder(const char *src);
void Map_DeleteAll(void);
#endif