git.maemo.org Git - navit-package/blob - navit/vehicle.c

   1 /**
   2  * Navit, a modular navigation system.
   3  * Copyright (C) 2005-2008 Navit Team
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * version 2 as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <glib.h>
  23 #include <time.h>
  24 #include "config.h"
  25 #include "debug.h"
  26 #include "coord.h"
  27 #include "item.h"
  28 #include "log.h"
  29 #include "callback.h"
  30 #include "plugin.h"
  31 #include "vehicle.h"
  32
  33 struct vehicle {
  34         struct vehicle_priv *priv;
  35         struct vehicle_methods meth;
  36         struct callback_list *cbl;
  37         struct log *nmea_log, *gpx_log;
  38         struct attr **attrs;
  39 };
  40
  41 static void
  42 vehicle_log_nmea(struct vehicle *this_, struct log *log)
  43 {
  44         struct attr pos_attr;
  45         if (!this_->meth.position_attr_get)
  46                 return;
  47         if (!this_->meth.position_attr_get(this_->priv, attr_position_nmea, &pos_attr))
  48                 return;
  49         log_write(log, pos_attr.u.str, strlen(pos_attr.u.str));
  50 }
  51
  52 static void
  53 vehicle_log_gpx(struct vehicle *this_, struct log *log)
  54 {
  55         struct attr pos_attr;
  56         struct attr time_attr;
  57         char buffer[256];
  58         char tbuf[256];
  59         char *timep;
  60         int free=0;
  61
  62         if (!this_->meth.position_attr_get)
  63                 return;
  64         if (!this_->meth.position_attr_get(this_->priv, attr_position_coord_geo, &pos_attr))
  65                 return;
  66         if (!this_->meth.position_attr_get(this_->priv, attr_position_time_iso8601, &time_attr)) {
  67                 timep = current_to_iso8601();
  68                 free=1;
  69         } else {
  70                 timep = time_attr.u.str;
  71         }
  72         sprintf(buffer,"<trkpt lat=\"%f\" lon=\"%f\">\n\t<time>%s</time>\n</trkpt>\n",
  73                 pos_attr.u.coord_geo->lat, pos_attr.u.coord_geo->lng, timep);
  74         log_write(log, buffer, strlen(buffer));
  75         if (free)
  76                 g_free(timep);
  77 }
  78
  79 static void
  80 vehicle_log_textfile(struct vehicle *this_, struct log *log)
  81 {
  82         struct attr pos_attr;
  83         char buffer[256];
  84         if (!this_->meth.position_attr_get)
  85                 return;
  86         if (!this_->meth.position_attr_get(this_->priv, attr_position_coord_geo, &pos_attr))
  87                 return;
  88         sprintf(buffer,"%f %f type=trackpoint\n", pos_attr.u.coord_geo->lng, pos_attr.u.coord_geo->lat);
  89         log_write(log, buffer, strlen(buffer));
  90 }
  91
  92 static int
  93 vehicle_add_log(struct vehicle *this_, struct log *log)
  94 {
  95         struct callback *cb;
  96         struct attr type_attr;
  97         if (!log_get_attr(log, attr_type, &type_attr, NULL))
  98                 return 1;
  99
 100         if (!strcmp(type_attr.u.str, "nmea")) {
 101                 cb=callback_new_2(callback_cast(vehicle_log_nmea), this_, log);
 102         } else if (!strcmp(type_attr.u.str, "gpx")) {
 103                 char *header =
 104                     "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<gpx version=\"1.0\" creator=\"Navit http://navit.sourceforge.net\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns=\"http://www.topografix.com/GPX/1/0\" xsi:schemaLocation=\"http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd\">\n<trk>\n<trkseg>\n";
 105                 char *trailer = "</trkseg>\n</trk>\n</gpx>\n";
 106                 log_set_header(log, header, strlen(header));
 107                 log_set_trailer(log, trailer, strlen(trailer));
 108                 cb=callback_new_2(callback_cast(vehicle_log_gpx), this_, log);
 109         } else if (!strcmp(type_attr.u.str, "textfile")) {
 110                 char *header = "type=track\n";
 111                 log_set_header(log, header, strlen(header));
 112                 cb=callback_new_2(callback_cast(vehicle_log_textfile), this_, log);
 113         } else
 114                 return 1;
 115         callback_list_add(this_->cbl, cb);
 116         return 0;
 117 }
 118
 119 struct vehicle *
 120 vehicle_new(struct attr *parent, struct attr **attrs)
 121 {
 122         struct vehicle *this_;
 123         struct attr *source;
 124         struct vehicle_priv *(*vehicletype_new) (struct vehicle_methods *
 125                                                  meth,
 126                                                  struct callback_list *
 127                                                  cbl,
 128                                                  struct attr ** attrs);
 129         char *type, *colon;
 130
 131         dbg(1, "enter\n");
 132         source = attr_search(attrs, NULL, attr_source);
 133         if (!source) {
 134                 dbg(0, "no source\n");
 135                 return NULL;
 136         }
 137
 138         type = g_strdup(source->u.str);
 139         colon = strchr(type, ':');
 140         if (colon)
 141                 *colon = '\0';
 142         dbg(1, "source='%s' type='%s'\n", source->u.str, type);
 143
 144         vehicletype_new = plugin_get_vehicle_type(type);
 145         if (!vehicletype_new) {
 146                 dbg(0, "invalid type '%s'\n", type);
 147                 return NULL;
 148         }
 149         this_ = g_new0(struct vehicle, 1);
 150         this_->cbl = callback_list_new();
 151         this_->priv = vehicletype_new(&this_->meth, this_->cbl, attrs);
 152         if (!this_->priv) {
 153                 dbg(0, "vehicletype_new failed\n");
 154                 callback_list_destroy(this_->cbl);
 155                 g_free(this_);
 156                 return NULL;
 157         }
 158         this_->attrs=attr_list_dup(attrs);
 159         dbg(1, "leave\n");
 160
 161         return this_;
 162 }
 163
 164 int
 165 vehicle_get_attr(struct vehicle *this_, enum attr_type type, struct attr *attr, struct attr_iter *iter)
 166 {
 167         int ret;
 168         if (this_->meth.position_attr_get) {
 169                 ret=this_->meth.position_attr_get(this_->priv, type, attr);
 170                 if (ret)
 171                         return ret;
 172         }
 173         return attr_generic_get_attr(this_->attrs, NULL, type, attr, iter);
 174 }
 175
 176 int
 177 vehicle_set_attr(struct vehicle *this_, struct attr *attr,
 178                  struct attr **attrs)
 179 {
 180         if (this_->meth.set_attr)
 181                 return this_->meth.set_attr(this_->priv, attr, attrs);
 182         return 0;
 183 }
 184
 185 int
 186 vehicle_add_attr(struct vehicle *this_, struct attr *attr)
 187 {
 188         int ret=1;
 189         switch (attr->type) {
 190         case attr_callback:
 191                 callback_list_add(this_->cbl, attr->u.callback);
 192                 break;
 193         case attr_log:
 194                 ret=vehicle_add_log(this_, attr->u.log);
 195                 break;
 196         default:
 197                 break;
 198         }
 199         if (ret)
 200                 this_->attrs=attr_generic_add_attr(this_->attrs, attr);
 201         return ret;
 202 }
 203
 204 int
 205 vehicle_remove_attr(struct vehicle *this_, struct attr *attr)
 206 {
 207         switch (attr->type) {
 208         case attr_callback:
 209                 callback_list_remove(this_->cbl, attr->u.callback);
 210                 break;
 211         default:
 212                 return 0;
 213         }
 214         return 1;
 215 }
 216
 217 void
 218 vehicle_destroy(struct vehicle *this_)
 219 {
 220         this_->meth.destroy(this_->priv);
 221         callback_list_destroy(this_->cbl);
 222         attr_list_free(this_->attrs);
 223         g_free(this_);
 224 }