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/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2008 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License
* version 2 as published by the Free Software Foundation.
*
* 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef NAVIT_MAP_H
#define NAVIT_MAP_H
struct map_priv;
struct attr;
#include "coord.h"
#include "point.h"
#include "layer.h"
struct map_selection {
struct map_selection *next;
union {
struct coord_rect c_rect;
struct point_rect p_rect;
} u;
int order[layer_end];
};
struct map_methods {
enum projection pro;
char *charset;
void (*map_destroy)(struct map_priv *priv);
struct map_rect_priv * (*map_rect_new)(struct map_priv *map, struct map_selection *sel);
void (*map_rect_destroy)(struct map_rect_priv *mr);
struct item * (*map_rect_get_item)(struct map_rect_priv *mr);
struct item * (*map_rect_get_item_byid)(struct map_rect_priv *mr, int id_hi, int id_lo);
struct map_search_priv *(*map_search_new)(struct map_priv *map, struct item *item, struct attr *search, int partial);
void (*map_search_destroy)(struct map_search_priv *ms);
struct item * (*map_search_get_item)(struct map_search_priv *ms);
};
static inline int
map_selection_contains_point(struct map_selection *sel, struct coord *c)
{
struct map_selection *curr=sel;
while (curr) {
struct coord_rect *r=&curr->u.c_rect;
if (c->x >= r->lu.x && c->x <= r->rl.x &&
c->y <= r->lu.y && c->y >= r->rl.y)
return 1;
curr=curr->next;
}
return sel ? 0:1;
}
static inline int
map_selection_contains_polyline(struct map_selection *sel, struct coord *c, int count)
{
int i,x_mi,x_ma,y_mi,y_ma;
struct map_selection *curr;
if (! sel)
return 1;
for (i = 0 ; i < count-1 ; i++) {
x_mi=c[i].x;
if (c[i+1].x < x_mi)
x_mi=c[i+1].x;
x_ma=c[i].x;
if (c[i+1].x > x_ma)
x_ma=c[i+1].x;
y_mi=c[i].y;
if (c[i+1].y < y_mi)
y_mi=c[i+1].y;
y_ma=c[i].y;
if (c[i+1].y > y_ma)
y_ma=c[i+1].y;
curr=sel;
while (curr) {
struct coord_rect *sr=&curr->u.c_rect;
if (x_mi <= sr->rl.x && x_ma >= sr->lu.x &&
y_ma >= sr->rl.y && y_mi <= sr->lu.y)
return 1;
curr=curr->next;
}
}
return 0;
}
static inline int
map_selection_contains_rect(struct map_selection *sel, struct coord_rect *r)
{
struct map_selection *curr;
g_assert(r->lu.x <= r->rl.x);
g_assert(r->lu.y >= r->rl.y);
if (! sel)
return 1;
curr=sel;
while (curr) {
struct coord_rect *sr=&curr->u.c_rect;
g_assert(sr->lu.x <= sr->rl.x);
g_assert(sr->lu.y >= sr->rl.y);
if (r->lu.x <= sr->rl.x && r->rl.x >= sr->lu.x &&
r->lu.y >= sr->rl.y && r->rl.y <= sr->lu.y)
return 1;
curr=curr->next;
}
return 0;
}
static inline int
map_selection_contains_polygon(struct map_selection *sel, struct coord *c, int count)
{
struct coord_rect r;
int i;
if (! sel)
return 1;
if (! count)
return 0;
r.lu=c[0];
r.rl=c[0];
for (i = 1 ; i < count ; i++) {
if (c[i].x < r.lu.x)
r.lu.x=c[i].x;
if (c[i].x > r.rl.x)
r.rl.x=c[i].x;
if (c[i].y < r.rl.y)
r.rl.y=c[i].y;
if (c[i].y > r.lu.y)
r.lu.y=c[i].y;
}
return map_selection_contains_rect(sel, &r);
}
/* prototypes */
enum projection;
struct attr;
struct item;
struct map;
struct map_rect;
struct map_search;
struct map_selection;
struct map *map_new(const char *type, struct attr **attrs);
char *map_get_filename(struct map *this_);
char *map_get_type(struct map *this_);
int map_get_active(struct map *this_);
void map_set_active(struct map *this_, int active);
int map_requires_conversion(struct map *this_);
char *map_convert_string(struct map *this_, char *str);
void map_convert_free(char *str);
enum projection map_projection(struct map *this_);
void map_set_projection(struct map *this_, enum projection pro);
void map_destroy(struct map *m);
struct map_rect *map_rect_new(struct map *m, struct map_selection *sel);
struct item *map_rect_get_item(struct map_rect *mr);
struct item *map_rect_get_item_byid(struct map_rect *mr, int id_hi, int id_lo);
void map_rect_destroy(struct map_rect *mr);
struct map_search *map_search_new(struct map *m, struct item *item, struct attr *search_attr, int partial);
struct item *map_search_get_item(struct map_search *this_);
void map_search_destroy(struct map_search *this_);
struct map_selection *map_selection_dup(struct map_selection *sel);
void map_selection_destroy(struct map_selection *sel);
int map_selection_contains_item_rect(struct map_selection *sel, struct item *item);
int map_priv_is(struct map *map, struct map_priv *priv);
/* end of prototypes */
#endif
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