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/* GNOME canvas based interface to a map using a simple cylindrical proj */
/* */
/* Copyright (C) 1999 Red Hat, Incorportated */
/* Original work by Michael Fulbright <drmike@redhat.com> */
#ifndef _GNOME_MAP_H_
#define _GNOME_MAP_H_
struct _GnomeMapStruct {
GtkWidget *canvas; /* canvas object used to display map */
gboolean aa; /* true if antialiased */
gint width; /* width of canvas in pixels */
gint height; /* height of canvas in pixels */
double long1; /* long1, lat1 is lower left corner of view */
double lat1;
double long2; /* long2, lat2 is upper right corner of view */
double lat2;
GdkImlibImage *image; /* actual image data */
GnomeCanvasItem *image_item; /* background image canvas object */
void *data; /* extra stuff */
};
typedef struct _GnomeMapStruct GnomeMap;
/* create new map */
GnomeMap *gnome_map_new ( gchar *imagefile,
gint width, gint height,
gboolean antialias );
/* set background map image used by map */
/*gint gnome_map_set_image ( GnomeMap *map, gchar *imagefile ); */
/* get original size of map image */
/*void gnome_map_get_image_size ( GnomeMap *map, gint *width, gint *height ); */
/* set/get size of view in pixels */
/*void gnome_map_set_size ( GnomeMap *map, gint width, gint height );*/
void gnome_map_get_size ( GnomeMap *map, gint *width, gint *height );
/* utility functions to go from screen coords to map coords */
void gnome_map_xlat_map2screen ( GnomeMap *map,
double longitude, double latitude,
double *sx, double *sy );
void gnome_map_xlat_screen2map ( GnomeMap *map,
double sx, double sy,
double *longitude, double *latitude );
void gnome_map_set_view (GnomeMap *map,
double longitude1, double latitude1,
double longitude2, double latitude2);
gboolean gnome_map_is_loc_in_view (GnomeMap *map,
double longitude, double latitude);
#endif
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