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Initial API 0.6 support
1 | harbaum | 1 | /* |
2 | * Copyright (C) 2008 Till Harbaum <till@harbaum.org>. | ||
3 | * | ||
4 | * This file is part of OSM2Go. | ||
5 | * | ||
6 | * OSM2Go is free software: you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation, either version 3 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * OSM2Go is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with OSM2Go. If not, see <http://www.gnu.org/licenses/>. | ||
18 | */ | ||
19 | |||
20 | #ifndef OSM_H | ||
21 | #define OSM_H | ||
22 | |||
23 | #include <math.h> | ||
24 | |||
25 | #define OSM_FLAG_DIRTY (1<<0) | ||
26 | #define OSM_FLAG_DELETED (1<<1) | ||
27 | #define OSM_FLAG_NEW (1<<2) | ||
28 | #define OSM_FLAG_HIDDEN (1<<3) | ||
29 | |||
30 | harbaum | 153 | /* item_id_t needs to be signed as osm2go uses negative ids for items */ |
31 | /* not yet registered with the main osm database */ | ||
32 | typedef glong item_id_t; | ||
33 | #define G_TYPE_ITEM_ID_T G_TYPE_LONG | ||
34 | harbaum | 1 | |
35 | #define ID_ILLEGAL ((item_id_t)0) | ||
36 | |||
37 | /* icon stuff is required since nodes may held a icon reference */ | ||
38 | struct icon_s; | ||
39 | |||
40 | typedef struct bounds_s { | ||
41 | pos_t ll_min, ll_max; | ||
42 | lpos_t min, max; | ||
43 | lpos_t center; | ||
44 | float scale; | ||
45 | } bounds_t; | ||
46 | |||
47 | typedef struct user_s { | ||
48 | char *name; | ||
49 | struct user_s *next; | ||
50 | } user_t; | ||
51 | |||
52 | typedef struct tag_s { | ||
53 | char *key, *value; | ||
54 | struct tag_s *next; | ||
55 | } tag_t; | ||
56 | |||
57 | typedef struct node_s { | ||
58 | item_id_t id; | ||
59 | harbaum | 158 | item_id_t version; |
60 | harbaum | 1 | pos_t pos; |
61 | lpos_t lpos; | ||
62 | user_t *user; | ||
63 | gboolean visible; | ||
64 | time_t time; | ||
65 | tag_t *tag; | ||
66 | int ways; | ||
67 | int flags; | ||
68 | float zoom_max; | ||
69 | |||
70 | /* icon */ | ||
71 | GdkPixbuf *icon_buf; | ||
72 | |||
73 | /* a link to the visual representation on screen */ | ||
74 | struct map_item_chain_s *map_item_chain; | ||
75 | |||
76 | struct node_s *next; | ||
77 | } node_t; | ||
78 | |||
79 | typedef struct node_chain { | ||
80 | node_t *node; | ||
81 | struct node_chain *next; | ||
82 | } node_chain_t; | ||
83 | |||
84 | #define OSM_DRAW_FLAG_AREA (1<<0) | ||
85 | #define OSM_DRAW_FLAG_BG (1<<1) | ||
86 | |||
87 | typedef struct way_s { | ||
88 | item_id_t id; | ||
89 | harbaum | 158 | item_id_t version; |
90 | item_id_t changeset; | ||
91 | harbaum | 1 | user_t *user; |
92 | gboolean visible; | ||
93 | time_t time; | ||
94 | tag_t *tag; | ||
95 | node_chain_t *node_chain; | ||
96 | int flags; | ||
97 | |||
98 | /* visual representation from elemstyle */ | ||
99 | struct { | ||
100 | guint flags; | ||
101 | gulong color; | ||
102 | gint width; | ||
103 | float zoom_max; | ||
104 | achadwick | 13 | gboolean dashed; |
105 | achadwick | 46 | guint dash_length; |
106 | harbaum | 1 | |
107 | union { | ||
108 | struct { | ||
109 | gulong color; | ||
110 | gint width; | ||
111 | } bg; | ||
112 | |||
113 | struct { | ||
114 | gulong color; | ||
115 | } area; | ||
116 | }; | ||
117 | } draw; | ||
118 | |||
119 | /* a link to the visual representation on screen */ | ||
120 | struct map_item_chain_s *map_item_chain; | ||
121 | |||
122 | struct way_s *next; | ||
123 | } way_t; | ||
124 | |||
125 | typedef struct way_chain { | ||
126 | way_t *way; | ||
127 | struct way_chain *next; | ||
128 | } way_chain_t; | ||
129 | |||
130 | typedef struct relation_s { | ||
131 | item_id_t id; | ||
132 | harbaum | 158 | item_id_t version; |
133 | item_id_t changeset; | ||
134 | harbaum | 1 | user_t *user; |
135 | gboolean visible; | ||
136 | time_t time; | ||
137 | tag_t *tag; | ||
138 | struct member_s *member; | ||
139 | int flags; | ||
140 | |||
141 | struct relation_s *next; | ||
142 | } relation_t; | ||
143 | |||
144 | typedef struct relation_chain_s { | ||
145 | relation_t *relation; | ||
146 | struct relation_chain_s *next; | ||
147 | } relation_chain_t; | ||
148 | |||
149 | harbaum | 42 | /* two of these hash tables are used, one for nodes and one for ways */ |
150 | /* currently relations aren't used often enough to justify the use */ | ||
151 | /* of a hash table */ | ||
152 | |||
153 | /* the current hash table uses 16 bits. each table thus is */ | ||
154 | /* 256 kbytes (2^16 * sizeof(void*)) in size */ | ||
155 | #define ID2HASH(a) ((unsigned short)(a) ^ (unsigned short)((a)>>16)) | ||
156 | typedef struct hash_item_s { | ||
157 | union { | ||
158 | node_t *node; | ||
159 | way_t *way; | ||
160 | relation_t *relation; | ||
161 | } data; | ||
162 | |||
163 | struct hash_item_s *next; | ||
164 | } hash_item_t; | ||
165 | |||
166 | typedef struct { | ||
167 | hash_item_t *hash[65536]; | ||
168 | } hash_table_t; | ||
169 | |||
170 | harbaum | 1 | typedef enum { |
171 | ILLEGAL=0, NODE, WAY, RELATION, NODE_ID, WAY_ID, RELATION_ID | ||
172 | } type_t; | ||
173 | |||
174 | harbaum | 153 | typedef struct { |
175 | type_t type; | ||
176 | union { | ||
177 | node_t *node; | ||
178 | way_t *way; | ||
179 | relation_t *relation; | ||
180 | harbaum | 155 | item_id_t id; |
181 | harbaum | 154 | void *ptr; |
182 | harbaum | 153 | }; |
183 | } object_t; | ||
184 | |||
185 | harbaum | 1 | typedef struct member_s { |
186 | harbaum | 155 | object_t object; |
187 | harbaum | 1 | char *role; |
188 | struct member_s *next; | ||
189 | } member_t; | ||
190 | |||
191 | typedef struct osm_s { | ||
192 | bounds_t *bounds; // original bounds as they appear in the file | ||
193 | user_t *user; | ||
194 | harbaum | 42 | |
195 | harbaum | 1 | node_t *node; |
196 | harbaum | 42 | hash_table_t *node_hash; |
197 | |||
198 | harbaum | 1 | way_t *way; |
199 | harbaum | 42 | hash_table_t *way_hash; |
200 | |||
201 | // hashing relations doesn't yet make much sense as relations are quite rare | ||
202 | harbaum | 1 | relation_t *relation; |
203 | harbaum | 42 | |
204 | harbaum | 1 | } osm_t; |
205 | |||
206 | #include <libxml/parser.h> | ||
207 | #include <libxml/tree.h> | ||
208 | |||
209 | osm_t *osm_parse(char *filename); | ||
210 | gboolean osm_sanity_check(GtkWidget *parent, osm_t *osm); | ||
211 | tag_t *osm_parse_osm_tag(osm_t *osm, xmlDocPtr doc, xmlNode *a_node); | ||
212 | node_chain_t *osm_parse_osm_way_nd(osm_t *osm, xmlDocPtr doc, xmlNode *a_node); | ||
213 | member_t *osm_parse_osm_relation_member(osm_t *osm, xmlDocPtr doc, xmlNode *a_node); | ||
214 | void osm_dump(osm_t *osm); | ||
215 | void osm_free(struct icon_s **icon, osm_t *osm); | ||
216 | |||
217 | char *osm_node_get_value(node_t *node, char *key); | ||
218 | gboolean osm_node_has_tag(node_t *node); | ||
219 | |||
220 | void osm_node_dump(node_t *node); | ||
221 | |||
222 | void osm_way_free(way_t *way); | ||
223 | void osm_way_dump(way_t *way); | ||
224 | char *osm_way_get_value(way_t *way, char *key); | ||
225 | gboolean osm_node_has_value(node_t *node, char *str); | ||
226 | gboolean osm_way_has_value(way_t *way, char *str); | ||
227 | void osm_way_append_node(way_t *way, node_t *node); | ||
228 | |||
229 | gboolean osm_node_in_way(way_t *way, node_t *node); | ||
230 | |||
231 | void osm_node_chain_free(node_chain_t *node_chain); | ||
232 | int osm_node_chain_length(node_chain_t *node_chain); | ||
233 | void osm_node_free(struct icon_s **icon, node_t *node); | ||
234 | |||
235 | void osm_members_free(member_t *member); | ||
236 | void osm_member_free(member_t *member); | ||
237 | |||
238 | void osm_tag_free(tag_t *tag); | ||
239 | void osm_tags_free(tag_t *tag); | ||
240 | char *osm_tag_get_by_key(tag_t *tag, char *key); | ||
241 | gboolean osm_is_creator_tag(tag_t *tag); | ||
242 | gboolean osm_tag_key_and_value_present(tag_t *haystack, tag_t *tag); | ||
243 | gboolean osm_tag_key_other_value_present(tag_t *haystack, tag_t *tag); | ||
244 | |||
245 | harbaum | 158 | char *osm_generate_xml_changeset(osm_t *osm, char *comment); |
246 | char *osm_generate_xml_node(osm_t *osm, item_id_t changeset, node_t *node); | ||
247 | char *osm_generate_xml_way(osm_t *osm, item_id_t changeset, way_t *way); | ||
248 | char *osm_generate_xml_relation(osm_t *osm, item_id_t changeset, | ||
249 | relation_t *relation); | ||
250 | harbaum | 1 | |
251 | node_t *osm_get_node_by_id(osm_t *osm, item_id_t id); | ||
252 | way_t *osm_get_way_by_id(osm_t *osm, item_id_t id); | ||
253 | relation_t *osm_get_relation_by_id(osm_t *osm, item_id_t id); | ||
254 | |||
255 | guint osm_way_number_of_nodes(way_t *way); | ||
256 | relation_chain_t *osm_node_to_relation(osm_t *osm, node_t *node); | ||
257 | relation_chain_t *osm_way_to_relation(osm_t *osm, way_t *way); | ||
258 | way_chain_t *osm_node_to_way(osm_t *osm, node_t *node); | ||
259 | |||
260 | /* ----------- edit functions ----------- */ | ||
261 | node_t *osm_node_new(osm_t *osm, gint x, gint y); | ||
262 | void osm_node_attach(osm_t *osm, node_t *node); | ||
263 | harbaum | 64 | void osm_node_restore(osm_t *osm, node_t *node); |
264 | harbaum | 1 | way_chain_t *osm_node_delete(osm_t *osm, struct icon_s **icon, node_t *node, |
265 | gboolean permanently, gboolean affect_ways); | ||
266 | void osm_way_delete(osm_t *osm, struct icon_s **icon, way_t *way, | ||
267 | gboolean permanently); | ||
268 | |||
269 | way_t *osm_way_new(void); | ||
270 | void osm_way_attach(osm_t *osm, way_t *way); | ||
271 | |||
272 | gboolean osm_position_within_bounds(osm_t *osm, gint x, gint y); | ||
273 | item_id_t osm_new_way_id(osm_t *osm); | ||
274 | gboolean osm_way_ends_with_node(way_t *way, node_t *node); | ||
275 | |||
276 | achadwick | 98 | void osm_way_reverse(way_t *way); |
277 | guint osm_way_reverse_direction_sensitive_tags(way_t *way); | ||
278 | harbaum | 103 | guint osm_way_reverse_direction_sensitive_roles(osm_t *osm, way_t *way); |
279 | harbaum | 1 | |
280 | void osm_node_remove_from_relation(osm_t *osm, node_t *node); | ||
281 | void osm_way_remove_from_relation(osm_t *osm, way_t *way); | ||
282 | |||
283 | node_t *osm_way_get_last_node(way_t *way); | ||
284 | node_t *osm_way_get_first_node(way_t *way); | ||
285 | void osm_way_rotate(way_t *way, gint offset); | ||
286 | |||
287 | tag_t *osm_tags_copy(tag_t *tag, gboolean update_creator); | ||
288 | |||
289 | harbaum | 73 | relation_t *osm_relation_new(void); |
290 | void osm_relation_free(relation_t *relation); | ||
291 | void osm_relation_attach(osm_t *osm, relation_t *relation); | ||
292 | harbaum | 75 | void osm_relation_delete(osm_t *osm, relation_t *relation, |
293 | gboolean permanently); | ||
294 | harbaum | 76 | gint osm_relation_members_num(relation_t *relation); |
295 | harbaum | 73 | |
296 | harbaum | 155 | char *osm_object_type_string(object_t *object); |
297 | char *osm_object_id_string(object_t *object); | ||
298 | char *osm_object_string(object_t *object); | ||
299 | tag_t *osm_object_get_tags(object_t *object); | ||
300 | harbaum | 153 | void osm_object_set_flags(object_t *map_item, int set, int clr); |
301 | |||
302 | harbaum | 1 | #endif /* OSM_H */ |
303 | achadwick | 13 | |
304 | // vim:et:ts=8:sw=2:sts=2:ai |