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Track handling redone
| 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 TRACK_H |
| 21 | #define TRACK_H |
| 22 | |
| 23 | typedef struct track_point_s { |
| 24 | pos_t pos; /* position in lat/lon format */ |
| 25 | time_t time; |
| 26 | float altitude; |
| 27 | struct track_point_s *next; |
| 28 | } track_point_t; |
| 29 | |
| 30 | typedef struct track_item_chain_s { |
| 31 | canvas_item_t *item; |
| 32 | struct track_item_chain_s *next; |
| 33 | } track_item_chain_t; |
| 34 | |
| 35 | typedef struct track_seg_s { |
| 36 | track_point_t *track_point; |
| 37 | struct track_seg_s *next; |
| 38 | track_item_chain_t *item_chain; |
| 39 | } track_seg_t; |
| 40 | |
| 41 | typedef struct track_s { |
| 42 | track_seg_t *track_seg; |
| 43 | gboolean dirty; |
| 44 | track_seg_t *cur_seg; |
| 45 | } track_t; |
| 46 | |
| 47 | gint track_seg_points(track_seg_t *seg); |
| 48 | |
| 49 | /* used internally to save and restore the currently displayed track */ |
| 50 | void track_save(project_t *project, track_t *track); |
| 51 | track_t *track_restore(appdata_t *appdata, project_t *project); |
| 52 | |
| 53 | /* accessible via the menu */ |
| 54 | void track_clear(appdata_t *appdata, track_t *track); |
| 55 | void track_export(appdata_t *appdata, char *filename); |
| 56 | track_t *track_import(appdata_t *appdata, char *filename); |
| 57 | |
| 58 | void track_enable_gps(appdata_t *appdata, gboolean enable); |
| 59 | |
| 60 | #endif // TRACK_H |