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

   1 /**
   2  * Navit, a modular navigation system.
   3  * Copyright (C) 2005-2009 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 <stdlib.h>
  22 #include <signal.h>
  23 #include <string.h>
  24 #include <unistd.h>
  25 #include <fcntl.h>
  26 #include <glib.h>
  27 #include <math.h>
  28 #include <time.h>
  29 #include "config.h"
  30 #include "debug.h"
  31 #include "navit.h"
  32 #include "callback.h"
  33 #include "gui.h"
  34 #include "item.h"
  35 #include "projection.h"
  36 #include "map.h"
  37 #include "mapset.h"
  38 #include "main.h"
  39 #include "coord.h"
  40 #include "point.h"
  41 #include "transform.h"
  42 #include "param.h"
  43 #include "menu.h"
  44 #include "graphics.h"
  45 #include "popup.h"
  46 #include "data_window.h"
  47 #include "route.h"
  48 #include "navigation.h"
  49 #include "speech.h"
  50 #include "track.h"
  51 #include "vehicle.h"
  52 #include "layout.h"
  53 #include "log.h"
  54 #include "attr.h"
  55 #include "event.h"
  56 #include "file.h"
  57 #include "profile.h"
  58 #include "command.h"
  59 #include "navit_nls.h"
  60 #include "util.h"
  61 #include "messages.h"
  62 #include "vehicleprofile.h"
  63 #include "sunriset.h"
  64
  65 /**
  66  * @defgroup navit the navit core instance. navit is the object containing nearly everything: A set of maps, one or more vehicle, a graphics object for rendering the map, a gui object for displaying the user interface, a route object, a navigation object and so on. Be warned that it is theoretically possible to have more than one navit object
  67  * @{
  68  */
  69
  70 //! The navit_vehicule
  71 struct navit_vehicle {
  72         int follow;
  73         /*! Limit of the follow counter. See navit_add_vehicle */
  74         int follow_curr;
  75         /*! Deprecated : follow counter itself. When it reaches 'update' counts, map is recentered*/
  76         struct coord coord;
  77         int dir;
  78         int speed;
  79         struct coord last; /*< Position of the last update of this vehicle */
  80         struct vehicle *vehicle;
  81         struct attr callback;
  82         int animate_cursor;
  83 };
  84
  85 struct navit {
  86         struct attr self;
  87         GList *mapsets;
  88         GList *layouts;
  89         struct gui *gui;
  90         struct layout *layout_current;
  91         struct graphics *gra;
  92         struct action *action;
  93         struct transformation *trans;
  94         struct compass *compass;
  95         struct route *route;
  96         struct navigation *navigation;
  97         struct speech *speech;
  98         struct tracking *tracking;
  99         int ready;
 100         struct window *win;
 101         struct displaylist *displaylist;
 102         int tracking_flag;
 103         int orientation;
 104         int recentdest_count;
 105         int osd_configuration;
 106         GList *vehicles;
 107         GList *windows_items;
 108         struct navit_vehicle *vehicle;
 109         struct callback_list *attr_cbl;
 110         struct callback *nav_speech_cb, *roadbook_callback, *popup_callback, *route_cb;
 111         struct datawindow *roadbook_window;
 112         struct map *bookmark;
 113         struct map *former_destination;
 114         GHashTable *bookmarks_hash;
 115         struct point pressed, last, current;
 116         int button_pressed,moved,popped,zoomed;
 117         int center_timeout;
 118         int autozoom_secs;
 119         int autozoom_min;
 120         int autozoom_active;
 121         struct event_timeout *button_timeout, *motion_timeout;
 122         struct callback *motion_timeout_callback;
 123         int ignore_button;
 124         int ignore_graphics_events;
 125         struct log *textfile_debug_log;
 126         struct pcoord destination;
 127         int destination_valid;
 128         int blocked;
 129         int w,h;
 130         int drag_bitmap;
 131         int use_mousewheel;
 132         struct messagelist *messages;
 133         struct callback *resize_callback,*button_callback,*motion_callback;
 134         struct vehicleprofile *vehicleprofile;
 135         GList *vehicleprofiles;
 136         int pitch;
 137         int follow_cursor;
 138         int prevTs;
 139         int graphics_flags;
 140 };
 141
 142 struct gui *main_loop_gui;
 143
 144 struct attr_iter {
 145         union {
 146                 GList *list;
 147                 struct mapset_handle *mapset_handle;
 148         } u;
 149 };
 150
 151 static void navit_vehicle_update(struct navit *this_, struct navit_vehicle *nv);
 152 static void navit_vehicle_draw(struct navit *this_, struct navit_vehicle *nv, struct point *pnt);
 153 static int navit_add_vehicle(struct navit *this_, struct vehicle *v);
 154 static int navit_set_attr_do(struct navit *this_, struct attr *attr, int init);
 155 static int navit_get_cursor_pnt(struct navit *this_, struct point *p, int *dir);
 156 static void navit_set_cursors(struct navit *this_);
 157 static void navit_cmd_zoom_to_route(struct navit *this);
 158 static void navit_cmd_set_center_cursor(struct navit *this_);
 159 static void navit_cmd_announcer_toggle(struct navit *this_);
 160 static void navit_set_vehicle(struct navit *this_, struct navit_vehicle *nv);
 161
 162 void
 163 navit_add_mapset(struct navit *this_, struct mapset *ms)
 164 {
 165         this_->mapsets = g_list_append(this_->mapsets, ms);
 166 }
 167
 168 struct mapset *
 169 navit_get_mapset(struct navit *this_)
 170 {
 171         if(this_->mapsets){
 172                 return this_->mapsets->data;
 173         } else {
 174                 dbg(0,"No mapsets enabled! Is it on purpose? Navit can't draw a map. Please check your navit.xml\n");
 175         }
 176         return NULL;
 177 }
 178
 179 struct tracking *
 180 navit_get_tracking(struct navit *this_)
 181 {
 182         return this_->tracking;
 183 }
 184
 185 static void
 186 navit_draw_async(struct navit *this_, int async)
 187 {
 188         GList *l;
 189         struct navit_vehicle *nv;
 190
 191         if (this_->blocked) {
 192                 this_->blocked |= 2;
 193                 return;
 194         }
 195         transform_setup_source_rect(this_->trans);
 196         l=this_->vehicles;
 197         while (l) {
 198                 nv=l->data;
 199                 navit_vehicle_draw(this_, nv, NULL);
 200                 l=g_list_next(l);
 201         }
 202         graphics_draw(this_->gra, this_->displaylist, this_->mapsets->data, this_->trans, this_->layout_current, async, NULL, this_->graphics_flags|1);
 203 }
 204
 205 void
 206 navit_draw(struct navit *this_)
 207 {
 208         navit_draw_async(this_, 0);
 209 }
 210
 211 int
 212 navit_get_ready(struct navit *this_)
 213 {
 214         return this_->ready;
 215 }
 216
 217
 218
 219 void
 220 navit_draw_displaylist(struct navit *this_)
 221 {
 222         if (this_->ready == 3)
 223                 graphics_displaylist_draw(this_->gra, this_->displaylist, this_->trans, this_->layout_current, this_->graphics_flags|1);
 224 }
 225
 226 static void
 227 navit_redraw_route(struct navit *this_, struct route *route, struct attr *attr)
 228 {
 229         int updated;
 230         if (attr->type != attr_route_status)
 231                 return;
 232         updated=attr->u.num;
 233         if (this_->ready != 3)
 234                 return;
 235         if (updated != route_status_path_done_new)
 236                 return;
 237         if (this_->vehicle) {
 238                 if (this_->vehicle->follow_curr == 1)
 239                         return;
 240                 if (this_->vehicle->follow_curr <= this_->vehicle->follow)
 241                         this_->vehicle->follow_curr=this_->vehicle->follow;
 242         }
 243         navit_draw(this_);
 244 }
 245
 246 void
 247 navit_handle_resize(struct navit *this_, int w, int h)
 248 {
 249         struct map_selection sel;
 250         this_->ready |= 2;
 251         if (this_->w != w || this_->h != h) {
 252                 memset(&sel, 0, sizeof(sel));
 253                 this_->w=w;
 254                 this_->h=h;
 255                 sel.u.p_rect.rl.x=w;
 256                 sel.u.p_rect.rl.y=h;
 257                 transform_set_screen_selection(this_->trans, &sel);
 258                 graphics_init(this_->gra);
 259                 graphics_set_rect(this_->gra, &sel.u.p_rect);
 260         }
 261         if (this_->ready == 3)
 262                 navit_draw(this_);
 263 }
 264
 265 static void
 266 navit_resize(void *data, int w, int h)
 267 {
 268         struct navit *this=data;
 269         if (!this->ignore_graphics_events)
 270                 navit_handle_resize(this, w, h);
 271 }
 272
 273 int
 274 navit_get_width(struct navit *this_)
 275 {
 276         return this_->w;
 277 }
 278
 279
 280 int
 281 navit_get_height(struct navit *this_)
 282 {
 283         return this_->h;
 284 }
 285
 286 static void
 287 navit_popup(void *data)
 288 {
 289         struct navit *this_=data;
 290         popup(this_, 1, &this_->pressed);
 291         this_->button_timeout=NULL;
 292         this_->popped=1;
 293 }
 294
 295
 296 int
 297 navit_ignore_button(struct navit *this_)
 298 {
 299         if (this_->ignore_button)
 300                 return 1;
 301         this_->ignore_button=1;
 302         return 0;
 303 }
 304
 305 void
 306 navit_ignore_graphics_events(struct navit *this_, int ignore)
 307 {
 308         this_->ignore_graphics_events=ignore;
 309 }
 310
 311 static void
 312 update_transformation(struct transformation *tr, struct point *old, struct point *new, struct point *rot)
 313 {
 314         struct coord co,cn;
 315         struct coord c,*cp;
 316         int yaw;
 317         double angleo,anglen;
 318
 319         if (!transform_reverse(tr, old, &co))
 320                 return;
 321         if (rot) {
 322                 angleo=atan2(old->y-rot->y, old->x-rot->x)*180/M_PI;
 323                 anglen=atan2(new->y-rot->y, new->x-rot->x)*180/M_PI;
 324                 yaw=transform_get_yaw(tr)+angleo-anglen;
 325                 transform_set_yaw(tr, yaw % 360);
 326         }
 327         if (!transform_reverse(tr, new, &cn))
 328                 return;
 329         cp=transform_get_center(tr);
 330         c.x=cp->x+co.x-cn.x;
 331         c.y=cp->y+co.y-cn.y;
 332         dbg(1,"from 0x%x,0x%x to 0x%x,0x%x\n", cp->x, cp->y, c.x, c.y);
 333         transform_set_center(tr, &c);
 334 }
 335
 336 static void
 337 navit_set_timeout(struct navit *this_)
 338 {
 339         struct attr follow;
 340         follow.type=attr_follow;
 341         follow.u.num=this_->center_timeout;
 342         navit_set_attr(this_, &follow);
 343 }
 344
 345 int
 346 navit_handle_button(struct navit *this_, int pressed, int button, struct point *p, struct callback *popup_callback)
 347 {
 348         int border=16;
 349
 350         callback_list_call_attr_4(this_->attr_cbl, attr_button, this_, GINT_TO_POINTER(pressed), GINT_TO_POINTER(button), p);
 351         if (this_->ignore_button) {
 352                 this_->ignore_button=0;
 353                 return 0;
 354         }
 355         if (pressed) {
 356                 this_->pressed=*p;
 357                 this_->last=*p;
 358                 this_->zoomed=0;
 359                 if (button == 1) {
 360                         this_->button_pressed=1;
 361                         this_->moved=0;
 362                         this_->popped=0;
 363                         if (popup_callback)
 364                                 this_->button_timeout=event_add_timeout(500, 0, popup_callback);
 365                 }
 366                 if (button == 2)
 367                         navit_set_center_screen(this_, p, 1);
 368                 if (button == 3)
 369                         popup(this_, button, p);
 370                 if (button == 4 && this_->use_mousewheel) {
 371                         this_->zoomed = 1;
 372                         navit_zoom_in(this_, 2, p);
 373                 }
 374                 if (button == 5 && this_->use_mousewheel) {
 375                         this_->zoomed = 1;
 376                         navit_zoom_out(this_, 2, p);
 377                 }
 378         } else {
 379
 380                 this_->button_pressed=0;
 381                 if (this_->button_timeout) {
 382                         event_remove_timeout(this_->button_timeout);
 383                         this_->button_timeout=NULL;
 384                         if (! this_->moved && ! transform_within_border(this_->trans, p, border)) {
 385                                 navit_set_center_screen(this_, p, !this_->zoomed);
 386                         }
 387                 }
 388                 if (this_->motion_timeout) {
 389                         event_remove_timeout(this_->motion_timeout);
 390                         this_->motion_timeout=NULL;
 391                 }
 392                 if (this_->moved) {
 393                         struct point pr;
 394                         pr.x=this_->w/2;
 395                         pr.y=this_->h;
 396 #if 0
 397                         update_transformation(this_->trans, &this_->pressed, p, &pr);
 398 #else
 399                         update_transformation(this_->trans, &this_->pressed, p, NULL);
 400 #endif
 401                         graphics_draw_drag(this_->gra, NULL);
 402                         graphics_overlay_disable(this_->gra, 0);
 403                         if (!this_->zoomed)
 404                                 navit_set_timeout(this_);
 405                         navit_draw(this_);
 406                 } else
 407                         return 1;
 408         }
 409         return 0;
 410 }
 411
 412 static void
 413 navit_button(void *data, int pressed, int button, struct point *p)
 414 {
 415         struct navit *this=data;
 416         if (!this->ignore_graphics_events) {
 417                 if (! this->popup_callback)
 418                         this->popup_callback=callback_new_1(callback_cast(navit_popup), this);
 419                 navit_handle_button(this, pressed, button, p, this->popup_callback);
 420         }
 421 }
 422
 423
 424 static void
 425 navit_motion_timeout(struct navit *this_)
 426 {
 427         int dx, dy;
 428
 429         if (this_->drag_bitmap) {
 430                 struct point point;
 431                 point.x=(this_->current.x-this_->pressed.x);
 432                 point.y=(this_->current.y-this_->pressed.y);
 433                 if (graphics_draw_drag(this_->gra, &point)) {
 434                         graphics_overlay_disable(this_->gra, 1);
 435                         graphics_draw_mode(this_->gra, draw_mode_end);
 436                         this_->moved=1;
 437                         this_->motion_timeout=NULL;
 438                         return;
 439                 }
 440         }
 441         dx=(this_->current.x-this_->last.x);
 442         dy=(this_->current.y-this_->last.y);
 443         if (dx || dy) {
 444                 struct transformation *tr;
 445                 struct point pr;
 446                 this_->last=this_->current;
 447                 graphics_overlay_disable(this_->gra, 1);
 448                 tr=transform_dup(this_->trans);
 449                 pr.x=this_->w/2;
 450                 pr.y=this_->h;
 451 #if 0
 452                 update_transformation(tr, &this_->pressed, &this_->current, &pr);
 453 #else
 454                 update_transformation(tr, &this_->pressed, &this_->current, NULL);
 455 #endif
 456 #if 0
 457                 graphics_displaylist_move(this_->displaylist, dx, dy);
 458 #endif
 459                 graphics_draw_cancel(this_->gra, this_->displaylist);
 460                 graphics_displaylist_draw(this_->gra, this_->displaylist, tr, this_->layout_current, this_->graphics_flags);
 461                 transform_destroy(tr);
 462                 this_->moved=1;
 463         }
 464         this_->motion_timeout=NULL;
 465         return;
 466 }
 467
 468 void
 469 navit_handle_motion(struct navit *this_, struct point *p)
 470 {
 471         int dx, dy;
 472
 473         if (this_->button_pressed && !this_->popped) {
 474                 dx=(p->x-this_->pressed.x);
 475                 dy=(p->y-this_->pressed.y);
 476                 if (dx < -8 || dx > 8 || dy < -8 || dy > 8) {
 477                         if (this_->button_timeout) {
 478                                 event_remove_timeout(this_->button_timeout);
 479                                 this_->button_timeout=NULL;
 480                         }
 481                         this_->current=*p;
 482                         if (! this_->motion_timeout_callback)
 483                                 this_->motion_timeout_callback=callback_new_1(callback_cast(navit_motion_timeout), this_);
 484                         if (! this_->motion_timeout)
 485                                 this_->motion_timeout=event_add_timeout(100, 0, this_->motion_timeout_callback);
 486                 }
 487         }
 488 }
 489
 490 static void
 491 navit_motion(void *data, struct point *p)
 492 {
 493         struct navit *this=data;
 494         if (!this->ignore_graphics_events)
 495                 navit_handle_motion(this, p);
 496 }
 497
 498 static void
 499 navit_scale(struct navit *this_, long scale, struct point *p, int draw)
 500 {
 501         struct coord c1, c2, *center;
 502         if (p)
 503                 transform_reverse(this_->trans, p, &c1);
 504         transform_set_scale(this_->trans, scale);
 505         if (p) {
 506                 transform_reverse(this_->trans, p, &c2);
 507                 center = transform_center(this_->trans);
 508                 center->x += c1.x - c2.x;
 509                 center->y += c1.y - c2.y;
 510         }
 511         if (draw)
 512                 navit_draw(this_);
 513 }
 514
 515 /**
 516  * @brief Automatically adjusts zoom level
 517  *
 518  * This function automatically adjusts the current
 519  * zoom level according to the current speed.
 520  *
 521  * @param this_ The navit struct
 522  * @param center The "immovable" point - i.e. the vehicles position if we're centering on the vehicle
 523  * @param speed The vehicles speed in meters per second
 524  * @param dir The direction into which the vehicle moves
 525  */
 526 static void
 527 navit_autozoom(struct navit *this_, struct coord *center, int speed, int draw)
 528 {
 529         struct point pc;
 530         int distance,w,h;
 531         double new_scale;
 532         long scale;
 533
 534         if (! this_->autozoom_active) {
 535                 return;
 536         }
 537
 538         distance = speed * this_->autozoom_secs;
 539
 540         transform_get_size(this_->trans, &w, &h);
 541         transform(this_->trans, transform_get_projection(this_->trans), center, &pc, 1, 0, 0, NULL);
 542         scale = transform_get_scale(this_->trans);
 543
 544         /* We make sure that the point we want to see is within a certain range
 545          * around the vehicle. The radius of this circle is the size of the
 546          * screen. This doesn't necessarily mean the point is visible because of
 547          * perspective etc. Quite rough, but should be enough. */
 548
 549         if (w > h) {
 550                 new_scale = (double)distance / h * 16;
 551         } else {
 552                 new_scale = (double)distance / w * 16;
 553         }
 554
 555         if (abs(new_scale - scale) < 2) {
 556                 return; // Smoothing
 557         }
 558
 559         if (new_scale >= this_->autozoom_min) {
 560                 navit_scale(this_, (long)new_scale, &pc, 0);
 561         } else {
 562                 if (scale != this_->autozoom_min) {
 563                         navit_scale(this_, this_->autozoom_min, &pc, 0);
 564                 }
 565         }
 566 }
 567
 568 /**
 569  * Change the current zoom level, zooming closer to the ground
 570  *
 571  * @param navit The navit instance
 572  * @param factor The zoom factor, usually 2
 573  * @param p The invariant point (if set to NULL, default to center)
 574  * @returns nothing
 575  */
 576 void
 577 navit_zoom_in(struct navit *this_, int factor, struct point *p)
 578 {
 579         long scale=transform_get_scale(this_->trans)/factor;
 580         if (scale < 1)
 581                 scale=1;
 582         navit_scale(this_, scale, p, 1);
 583 }
 584
 585 /**
 586  * Change the current zoom level
 587  *
 588  * @param navit The navit instance
 589  * @param factor The zoom factor, usually 2
 590  * @param p The invariant point (if set to NULL, default to center)
 591  * @returns nothing
 592  */
 593 void
 594 navit_zoom_out(struct navit *this_, int factor, struct point *p)
 595 {
 596         long scale=transform_get_scale(this_->trans)*factor;
 597         navit_scale(this_, scale, p, 1);
 598 }
 599
 600 static int
 601 navit_cmd_zoom_in(struct navit *this_)
 602 {
 603         struct point p;
 604         if (this_->vehicle && this_->vehicle->follow_curr == 1 && navit_get_cursor_pnt(this_, &p, NULL)) {
 605                 navit_zoom_in(this_, 2, &p);
 606                 this_->vehicle->follow_curr=this_->vehicle->follow;
 607         } else
 608                 navit_zoom_in(this_, 2, NULL);
 609         return 0;
 610 }
 611
 612 static int
 613 navit_cmd_zoom_out(struct navit *this_)
 614 {
 615         struct point p;
 616         if (this_->vehicle && this_->vehicle->follow_curr == 1 && navit_get_cursor_pnt(this_, &p, NULL)) {
 617                 navit_zoom_out(this_, 2, &p);
 618                 this_->vehicle->follow_curr=this_->vehicle->follow;
 619         } else
 620                 navit_zoom_out(this_, 2, NULL);
 621         return 0;
 622 }
 623
 624 static struct command_table commands[] = {
 625         {"zoom_in",command_cast(navit_cmd_zoom_in)},
 626         {"zoom_out",command_cast(navit_cmd_zoom_out)},
 627         {"zoom_to_route",command_cast(navit_cmd_zoom_to_route)},
 628         {"set_center_cursor",command_cast(navit_cmd_set_center_cursor)},
 629         {"announcer_toggle",command_cast(navit_cmd_announcer_toggle)},
 630 };
 631
 632
 633 struct navit *
 634 navit_new(struct attr *parent, struct attr **attrs)
 635 {
 636         struct navit *this_=g_new0(struct navit, 1);
 637         struct pcoord center;
 638         struct coord co;
 639         struct coord_geo g;
 640         enum projection pro=projection_mg;
 641         int zoom = 256;
 642         g.lat=53.13;
 643         g.lng=11.70;
 644
 645         this_->self.type=attr_navit;
 646         this_->self.u.navit=this_;
 647         this_->attr_cbl=callback_list_new();
 648
 649         this_->bookmarks_hash=g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
 650
 651         this_->orientation=-1;
 652         this_->tracking_flag=1;
 653         this_->recentdest_count=10;
 654         this_->osd_configuration=-1;
 655
 656         this_->center_timeout = 10;
 657         this_->use_mousewheel = 1;
 658         this_->autozoom_secs = 10;
 659         this_->autozoom_min = 7;
 660         this_->autozoom_active = 0;
 661         this_->follow_cursor = 1;
 662
 663         this_->trans = transform_new();
 664         transform_from_geo(pro, &g, &co);
 665         center.x=co.x;
 666         center.y=co.y;
 667         center.pro = pro;
 668
 669         this_->prevTs=0;
 670
 671         transform_setup(this_->trans, &center, zoom, (this_->orientation != -1) ? this_->orientation : 0);
 672         for (;*attrs; attrs++) {
 673                 navit_set_attr_do(this_, *attrs, 1);
 674         }
 675         this_->displaylist=graphics_displaylist_new();
 676         command_add_table(this_->attr_cbl, commands, sizeof(commands)/sizeof(struct command_table), this_);
 677
 678         this_->messages = messagelist_new(attrs);
 679
 680         return this_;
 681 }
 682
 683 static int
 684 navit_set_gui(struct navit *this_, struct gui *gui)
 685 {
 686         if (this_->gui)
 687                 return 0;
 688         this_->gui=gui;
 689         if (gui_has_main_loop(this_->gui)) {
 690                 if (! main_loop_gui) {
 691                         main_loop_gui=this_->gui;
 692                 } else {
 693                         dbg(0,"gui with main loop already active, ignoring this instance");
 694                         return 0;
 695                 }
 696         }
 697         return 1;
 698 }
 699
 700 void
 701 navit_add_message(struct navit *this_, char *message)
 702 {
 703         message_new(this_->messages, message);
 704 }
 705
 706 struct message
 707 *navit_get_messages(struct navit *this_)
 708 {
 709         return message_get(this_->messages);
 710 }
 711
 712 static int
 713 navit_set_graphics(struct navit *this_, struct graphics *gra)
 714 {
 715         if (this_->gra)
 716                 return 0;
 717         this_->gra=gra;
 718         this_->resize_callback=callback_new_attr_1(callback_cast(navit_resize), attr_resize, this_);
 719         graphics_add_callback(gra, this_->resize_callback);
 720         this_->button_callback=callback_new_attr_1(callback_cast(navit_button), attr_button, this_);
 721         graphics_add_callback(gra, this_->button_callback);
 722         this_->motion_callback=callback_new_attr_1(callback_cast(navit_motion), attr_motion, this_);
 723         graphics_add_callback(gra, this_->motion_callback);
 724         return 1;
 725 }
 726
 727 struct graphics *
 728 navit_get_graphics(struct navit *this_)
 729 {
 730         return this_->gra;
 731 }
 732
 733 struct vehicleprofile *
 734 navit_get_vehicleprofile(struct navit *this_)
 735 {
 736         return this_->vehicleprofile;
 737 }
 738
 739 GList *
 740 navit_get_vehicleprofiles(struct navit *this_)
 741 {
 742         return this_->vehicleprofiles;
 743 }
 744
 745 static void
 746 navit_projection_set(struct navit *this_, enum projection pro)
 747 {
 748         struct coord_geo g;
 749         struct coord *c;
 750
 751         c=transform_center(this_->trans);
 752         transform_to_geo(transform_get_projection(this_->trans), c, &g);
 753         transform_set_projection(this_->trans, pro);
 754         transform_from_geo(pro, &g, c);
 755         navit_draw(this_);
 756 }
 757
 758 /**
 759  * @param limit Limits the number of entries in the "backlog". Set to 0 for "infinite"
 760  */
 761 static void
 762 navit_append_coord(struct navit *this_, char *file, struct pcoord *c, const char *type, const char *description, GHashTable *h, int limit)
 763 {
 764         FILE *f;
 765         int offset=0;
 766         char *buffer;
 767         int ch,prev,lines=0;
 768         int numc,readc;
 769         int fd;
 770         const char *prostr;
 771
 772         f=fopen(file, "r");
 773         if (!f)
 774                 goto new_file;
 775         if (limit != 0) {
 776                 prev = '\n';
 777                 while ((ch = fgetc(f)) != EOF) {
 778                         if ((ch == '\n') && (prev != '\n')) {
 779                                 lines++;
 780                         }
 781                         prev = ch;
 782                 }
 783
 784                 if (prev != '\n') { // Last line did not end with a newline
 785                         lines++;
 786                 }
 787
 788                 fclose(f);
 789                 f = fopen(file, "r+");
 790                 fd = fileno(f);
 791                 while (lines >= limit) { // We have to "scroll up"
 792                         rewind(f);
 793                         numc = 0; // Counts how many bytes we have in our line to scroll up
 794                         while ((ch = fgetc(f)) != EOF) {
 795                                 numc++;
 796                                 if (ch == '\n') {
 797                                         break;
 798                                 }
 799                         }
 800
 801                         buffer=g_malloc(numc);
 802                         offset = numc; // Offset holds where we currently are
 803
 804                         do {
 805                                 fseek(f,offset,SEEK_SET);
 806                                 readc = fread(buffer,1,numc,f);
 807
 808                                 fseek(f,-(numc+readc),SEEK_CUR);
 809                                 fwrite(buffer,1,readc,f);
 810
 811                                 offset += readc;
 812                         } while (readc == numc);
 813
 814                         g_free(buffer);
 815                         fflush(f);
 816                         ftruncate(fd,(offset-numc));
 817 #ifdef HAVE_FSYNC
 818                         fsync(fd);
 819 #endif
 820
 821                         lines--;
 822                 }
 823                 fclose(f);
 824         }
 825
 826 new_file:
 827         f=fopen(file, "a");
 828         if (f) {
 829                 if (c) {
 830                         prostr = projection_to_name(c->pro,NULL);
 831                         fprintf(f,"%s%s%s0x%x %s0x%x type=%s label=\"%s\"\n",
 832                                  prostr, *prostr ? ":" : "",
 833                                  c->x >= 0 ? "":"-", c->x >= 0 ? c->x : -c->x,
 834                                  c->y >= 0 ? "":"-", c->y >= 0 ? c->y : -c->y,
 835                                  type, description);
 836                 } else
 837                         fprintf(f,"\n");
 838         }
 839         fclose(f);
 840 }
 841
 842 /*
 843  * navit_get_user_data_directory
 844  *
 845  * returns the directory used to store user data files (center.txt,
 846  * destination.txt, bookmark.txt, ...)
 847  *
 848  * arg: gboolean create: create the directory if it does not exist
 849  */
 850 static char*
 851 navit_get_user_data_directory(gboolean create) {
 852         char *dir;
 853         dir = getenv("NAVIT_USER_DATADIR");
 854         if (create && !file_exists(dir)) {
 855                 dbg(0,"creating dir %s\n", dir);
 856                 if (file_mkdir(dir,0)) {
 857                         dbg(0,"failed creating dir %s\n", dir);
 858                         return NULL;
 859                 }
 860         }
 861
 862         return dir;
 863 }
 864
 865 /*
 866  * navit_get_destination_file
 867  *
 868  * returns the name of the file used to store destinations with its
 869  * full path
 870  *
 871  * arg: gboolean create: create the directory where the file is stored
 872  * if it does not exist
 873  */
 874 static char*
 875 navit_get_destination_file(gboolean create)
 876 {
 877         return g_strjoin(NULL, navit_get_user_data_directory(create), "/destination.txt", NULL);
 878 }
 879
 880 /*
 881  * navit_get_bookmark_file
 882  *
 883  * returns the name of the file used to store bookmarks with its
 884  * full path
 885  *
 886  * arg: gboolean create: create the directory where the file is stored
 887  * if it does not exist
 888  */
 889 static char*
 890 navit_get_bookmark_file(gboolean create)
 891 {
 892         return g_strjoin(NULL, navit_get_user_data_directory(create), "/bookmark.txt", NULL);
 893 }
 894
 895
 896 /*
 897  * navit_get_bookmark_file
 898  *
 899  * returns the name of the file used to store the center file  with its
 900  * full path
 901  *
 902  * arg: gboolean create: create the directory where the file is stored
 903  * if it does not exist
 904  */
 905 static char*
 906 navit_get_center_file(gboolean create)
 907 {
 908         return g_strjoin(NULL, navit_get_user_data_directory(create), "/center.txt", NULL);
 909 }
 910
 911 static void
 912 navit_set_center_from_file(struct navit *this_, char *file)
 913 {
 914 #ifndef HAVE_API_ANDROID
 915         FILE *f;
 916         char *line = NULL;
 917
 918         size_t line_size = 0;
 919         enum projection pro;
 920         struct coord *center;
 921
 922         f = fopen(file, "r");
 923         if (! f)
 924                 return;
 925         getline(&line, &line_size, f);
 926         fclose(f);
 927         if (line) {
 928                 center = transform_center(this_->trans);
 929                 pro = transform_get_projection(this_->trans);
 930                 coord_parse(g_strchomp(line), pro, center);
 931                 free(line);
 932         }
 933         return;
 934 #endif
 935 }
 936
 937 static void
 938 navit_write_center_to_file(struct navit *this_, char *file)
 939 {
 940         FILE *f;
 941         enum projection pro;
 942         struct coord *center;
 943
 944         f = fopen(file, "w+");
 945         if (f) {
 946                 center = transform_center(this_->trans);
 947                 pro = transform_get_projection(this_->trans);
 948                 coord_print(pro, center, f);
 949                 fclose(f);
 950         } else {
 951                 perror(file);
 952         }
 953         return;
 954 }
 955
 956
 957 /**
 958  * Start the route computing to a given set of coordinates
 959  *
 960  * @param navit The navit instance
 961  * @param c The coordinate to start routing to
 962  * @param description A label which allows the user to later identify this destination in the former destinations selection
 963  * @returns nothing
 964  */
 965 void
 966 navit_set_destination(struct navit *this_, struct pcoord *c, const char *description, int async)
 967 {
 968         if (c) {
 969                 this_->destination=*c;
 970                 this_->destination_valid=1;
 971         } else
 972                 this_->destination_valid=0;
 973         char *destination_file = navit_get_destination_file(TRUE);
 974         navit_append_coord(this_, destination_file, c, "former_destination", description, NULL, this_->recentdest_count);
 975         g_free(destination_file);
 976         callback_list_call_attr_0(this_->attr_cbl, attr_destination);
 977         if (this_->route) {
 978                 route_set_destination(this_->route, c, async);
 979
 980                 if (this_->ready == 3)
 981                         navit_draw(this_);
 982         }
 983 }
 984
 985 /**
 986  * @brief Checks if a route is calculated
 987  *
 988  * This function checks if a route is calculated.
 989  *
 990  * @param this_ The navit struct whose route should be checked.
 991  * @return True if the route is set, false otherwise.
 992  */
 993 int
 994 navit_check_route(struct navit *this_)
 995 {
 996         if (this_->route) {
 997                 return route_get_path_set(this_->route);
 998         }
 999
1000         return 0;
1001 }
1002
1003 /**
1004  * Record the given set of coordinates as a bookmark
1005  *
1006  * @param navit The navit instance
1007  * @param c The coordinate to store
1008  * @param description A label which allows the user to later identify this bookmark
1009  * @returns nothing
1010  */
1011 void
1012 navit_add_bookmark(struct navit *this_, struct pcoord *c, const char *description)
1013 {
1014         char *bookmark_file = navit_get_bookmark_file(TRUE);
1015         navit_append_coord(this_,bookmark_file, c, "bookmark", description, this_->bookmarks_hash,0);
1016         g_free(bookmark_file);
1017
1018         callback_list_call_attr_0(this_->attr_cbl, attr_bookmark_map);
1019 }
1020
1021 struct navit *global_navit;
1022
1023 static void
1024 navit_add_bookmarks_from_file(struct navit *this_)
1025 {
1026         char *bookmark_file = navit_get_bookmark_file(FALSE);
1027         struct attr parent={attr_navit, .u.navit=this_};
1028         struct attr type={attr_type, {"textfile"}}, data={attr_data, {bookmark_file}};
1029         struct attr *attrs[]={&type, &data, NULL};
1030
1031         this_->bookmark=map_new(&parent, attrs);
1032         g_free(bookmark_file);
1033 }
1034
1035 static int
1036 navit_former_destinations_active(struct navit *this_)
1037 {
1038         char *destination_file = navit_get_destination_file(FALSE);
1039         FILE *f;
1040         int active=0;
1041         char buffer[3];
1042         f=fopen(destination_file,"r");
1043         if (f) {
1044                 if(!fseek(f, -2, SEEK_END) && fread(buffer, 2, 1, f) == 1 && (buffer[0]!='\n' || buffer[1]!='\n'))
1045                         active=1;
1046                 fclose(f);
1047         }
1048         g_free(destination_file);
1049         return active;
1050 }
1051
1052 static void
1053 navit_add_former_destinations_from_file(struct navit *this_)
1054 {
1055         char *destination_file = navit_get_destination_file(FALSE);
1056         struct attr parent={attr_navit, .u.navit=this_};
1057         struct attr type={attr_type, {"textfile"}}, data={attr_data, {destination_file}};
1058         struct attr *attrs[]={&type, &data, NULL};
1059         struct map_rect *mr;
1060         struct item *item;
1061         int valid=0;
1062         struct coord c;
1063         struct pcoord pc;
1064
1065         this_->former_destination=map_new(&parent, attrs);
1066         g_free(destination_file);
1067         if (!this_->route || !navit_former_destinations_active(this_))
1068                 return;
1069         mr=map_rect_new(this_->former_destination, NULL);
1070         while ((item=map_rect_get_item(mr))) {
1071                 if (item->type == type_former_destination && item_coord_get(item, &c, 1))
1072                         valid=1;
1073         }
1074         map_rect_destroy(mr);
1075         pc.pro=map_projection(this_->former_destination);
1076         pc.x=c.x;
1077         pc.y=c.y;
1078         if (valid) {
1079                 route_set_destination(this_->route, &pc, 1);
1080                 this_->destination=pc;
1081                 this_->destination_valid=1;
1082         }
1083 }
1084
1085
1086 void
1087 navit_textfile_debug_log(struct navit *this_, const char *fmt, ...)
1088 {
1089         va_list ap;
1090         char *str1,*str2;
1091         va_start(ap, fmt);
1092         if (this_->textfile_debug_log && this_->vehicle) {
1093                 str1=g_strdup_vprintf(fmt, ap);
1094                 str2=g_strdup_printf("0x%x 0x%x%s%s\n", this_->vehicle->coord.x, this_->vehicle->coord.y, strlen(str1) ? " " : "", str1);
1095                 log_write(this_->textfile_debug_log, str2, strlen(str2), 0);
1096                 g_free(str2);
1097                 g_free(str1);
1098         }
1099         va_end(ap);
1100 }
1101
1102 int
1103 navit_speech_estimate(struct navit *this_, char *str)
1104 {
1105         return speech_estimate_duration(this_->speech, str);
1106 }
1107
1108 void
1109 navit_say(struct navit *this_, char *text)
1110 {
1111         speech_say(this_->speech, text);
1112 }
1113
1114 /**
1115  * @brief Toggles the navigation announcer for navit
1116  * @param this_ The navit object
1117  */
1118 static void
1119 navit_cmd_announcer_toggle(struct navit *this_)
1120 {
1121     struct attr attr, speechattr;
1122
1123     // search for the speech attribute
1124     if(!navit_get_attr(this_, attr_speech, &speechattr, NULL))
1125         return;
1126     // find out if the corresponding attribute attr_active has been set
1127     if(speech_get_attr(speechattr.u.speech, attr_active, &attr, NULL)) {
1128         // flip it then...
1129         attr.u.num = !attr.u.num;
1130     } else {
1131         // otherwise disable it because voice is enabled by default
1132         attr.type = attr_active;
1133         attr.u.num = 0;
1134     }
1135
1136     // apply the new state
1137     if(!speech_set_attr(speechattr.u.speech, &attr))
1138         return;
1139
1140     // announce that the speech attribute has changed
1141     callback_list_call_attr_0(this_->attr_cbl, attr_speech);
1142 }
1143
1144 void
1145 navit_speak(struct navit *this_)
1146 {
1147         struct navigation *nav=this_->navigation;
1148         struct map *map=NULL;
1149         struct map_rect *mr=NULL;
1150         struct item *item;
1151         struct attr attr;
1152
1153     if (!speech_get_attr(this_->speech, attr_active, &attr, NULL))
1154         attr.u.num = 1;
1155     dbg(1, "this_.speech->active %i\n", attr.u.num);
1156     if(!attr.u.num)
1157         return;
1158
1159         if (nav)
1160                 map=navigation_get_map(nav);
1161         if (map)
1162                 mr=map_rect_new(map, NULL);
1163         if (mr) {
1164                 while ((item=map_rect_get_item(mr)) && (item->type == type_nav_position || item->type == type_nav_none));
1165                 if (item && item_attr_get(item, attr_navigation_speech, &attr)) {
1166                         speech_say(this_->speech, attr.u.str);
1167                         navit_add_message(this_, attr.u.str);
1168                         navit_textfile_debug_log(this_, "type=announcement label=\"%s\"", attr.u.str);
1169                 }
1170                 map_rect_destroy(mr);
1171         }
1172 }
1173
1174 static void
1175 navit_window_roadbook_update(struct navit *this_)
1176 {
1177         struct navigation *nav=this_->navigation;
1178         struct map *map=NULL;
1179         struct map_rect *mr=NULL;
1180         struct item *item;
1181         struct attr attr;
1182         struct param_list param[5];
1183         int secs;
1184
1185         dbg(1,"enter\n");
1186         datawindow_mode(this_->roadbook_window, 1);
1187         if (nav)
1188                 map=navigation_get_map(nav);
1189         if (map)
1190                 mr=map_rect_new(map, NULL);
1191         dbg(0,"nav=%p map=%p mr=%p\n", nav, map, mr);
1192         if (mr) {
1193                 dbg(0,"while loop\n");
1194                 while ((item=map_rect_get_item(mr))) {
1195                         dbg(0,"item=%p\n", item);
1196                         attr.u.str=NULL;
1197                         if (item->type != type_nav_position) {
1198                                 item_attr_get(item, attr_navigation_long, &attr);
1199                                 if (attr.u.str == NULL) {
1200                                         continue;
1201                                 }
1202                                 dbg(2, "Command='%s'\n", attr.u.str);
1203                                 param[0].value=g_strdup(attr.u.str);
1204                         } else
1205                                 param[0].value=_("Position");
1206                         param[0].name=_("Command");
1207
1208                         item_attr_get(item, attr_length, &attr);
1209                         dbg(2, "Length=%d\n", attr.u.num);
1210                         param[1].name=_("Length");
1211
1212                         if ( attr.u.num >= 2000 )
1213                         {
1214                                 param[1].value=g_strdup_printf("%5.1f %s",(float)attr.u.num / 1000, _("km") );
1215                         }
1216                         else
1217                         {
1218                                 param[1].value=g_strdup_printf("%7d %s",attr.u.num, _("m"));
1219                         }
1220
1221                         item_attr_get(item, attr_time, &attr);
1222                         dbg(2, "Time=%d\n", attr.u.num);
1223                         secs=attr.u.num/10;
1224                         param[2].name=_("Time");
1225                         if ( secs >= 3600 )
1226                         {
1227                                 param[2].value=g_strdup_printf("%d:%02d:%02d",secs / 60, ( secs / 60 ) % 60 , secs % 60);
1228                         }
1229                         else
1230                         {
1231                                 param[2].value=g_strdup_printf("%d:%02d",secs / 60, secs % 60);
1232                         }
1233
1234                         item_attr_get(item, attr_destination_length, &attr);
1235                         dbg(2, "Destlength=%d\n", attr.u.num);
1236                         param[3].name=_("Destination Length");
1237                         if ( attr.u.num >= 2000 )
1238                         {
1239                                 param[3].value=g_strdup_printf("%5.1f %s",(float)attr.u.num / 1000, _("km") );
1240                         }
1241                         else
1242                         {
1243                                 param[3].value=g_strdup_printf("%d %s",attr.u.num, _("m"));
1244                         }
1245
1246                         item_attr_get(item, attr_destination_time, &attr);
1247                         dbg(2, "Desttime=%d\n", attr.u.num);
1248                         secs=attr.u.num/10;
1249                         param[4].name=_("Destination Time");
1250                         if ( secs >= 3600 )
1251                         {
1252                                 param[4].value=g_strdup_printf("%d:%02d:%02d",secs / 3600, (secs / 60 ) % 60 , secs % 60);
1253                         }
1254                         else
1255                         {
1256                                 param[4].value=g_strdup_printf("%d:%02d",secs / 60, secs % 60);
1257                         }
1258                         datawindow_add(this_->roadbook_window, param, 5);
1259                 }
1260                 map_rect_destroy(mr);
1261         }
1262         datawindow_mode(this_->roadbook_window, 0);
1263 }
1264
1265 void
1266 navit_window_roadbook_destroy(struct navit *this_)
1267 {
1268         dbg(0, "enter\n");
1269         navigation_unregister_callback(this_->navigation, attr_navigation_long, this_->roadbook_callback);
1270         this_->roadbook_window=NULL;
1271         this_->roadbook_callback=NULL;
1272 }
1273 void
1274 navit_window_roadbook_new(struct navit *this_)
1275 {
1276         if (!this_->gui || this_->roadbook_callback || this_->roadbook_window) {
1277                 return;
1278         }
1279
1280         this_->roadbook_callback=callback_new_1(callback_cast(navit_window_roadbook_update), this_);
1281         navigation_register_callback(this_->navigation, attr_navigation_long, this_->roadbook_callback);
1282         this_->roadbook_window=gui_datawindow_new(this_->gui, _("Roadbook"), NULL, callback_new_1(callback_cast(navit_window_roadbook_destroy), this_));
1283         navit_window_roadbook_update(this_);
1284 }
1285
1286 void
1287 navit_init(struct navit *this_)
1288 {
1289         struct mapset *ms;
1290         struct map *map;
1291
1292         dbg(2,"enter gui %p graphics %p\n",this_->gui,this_->gra);
1293         if (!this_->gui) {
1294                 dbg(0,"no gui\n");
1295                 navit_destroy(this_);
1296                 return;
1297         }
1298         if (!this_->gra) {
1299                 dbg(0,"no graphics\n");
1300                 navit_destroy(this_);
1301                 return;
1302         }
1303         dbg(2,"Connecting gui to graphics\n");
1304         if (gui_set_graphics(this_->gui, this_->gra)) {
1305                 struct attr attr_type_gui, attr_type_graphics;
1306                 gui_get_attr(this_->gui, attr_type, &attr_type_gui, NULL);
1307                 graphics_get_attr(this_->gra, attr_type, &attr_type_graphics, NULL);
1308                 dbg(0,"failed to connect graphics '%s' to gui '%s'\n", attr_type_graphics.u.str, attr_type_gui.u.str);
1309                 dbg(0," Please see http://wiki.navit-project.org/index.php/Failed_to_connect_graphics_to_gui\n");
1310                 dbg(0," for explanations and solutions\n");
1311
1312                 navit_destroy(this_);
1313                 return;
1314         }
1315         dbg(2,"Initializing graphics\n");
1316         dbg(2,"Setting Vehicle\n");
1317         navit_set_vehicle(this_, this_->vehicle);
1318         dbg(2,"Adding dynamic maps to mapset %p\n",this_->mapsets);
1319         if (this_->mapsets) {
1320                 ms=this_->mapsets->data;
1321                 if (this_->route) {
1322                         if ((map=route_get_map(this_->route)))
1323                                 mapset_add_attr(ms, &(struct attr){attr_map,.u.map=map});
1324                         if ((map=route_get_graph_map(this_->route))) {
1325                                 mapset_add_attr(ms, &(struct attr){attr_map,.u.map=map});
1326                                 map_set_attr(map, &(struct attr ){attr_active,.u.num=0});
1327                         }
1328                         route_set_mapset(this_->route, ms);
1329                         route_set_projection(this_->route, transform_get_projection(this_->trans));
1330                 }
1331                 if (this_->tracking) {
1332                         tracking_set_mapset(this_->tracking, ms);
1333                         if (this_->route)
1334                                 tracking_set_route(this_->tracking, this_->route);
1335                 }
1336                 if (this_->navigation) {
1337                         if ((map=navigation_get_map(this_->navigation))) {
1338                                 mapset_add_attr(ms, &(struct attr){attr_map,.u.map=map});
1339                                 map_set_attr(map, &(struct attr ){attr_active,.u.num=0});
1340                         }
1341                 }
1342                 if (this_->tracking) {
1343                         if ((map=tracking_get_map(this_->tracking))) {
1344                                 mapset_add_attr(ms, &(struct attr){attr_map,.u.map=map});
1345                                 map_set_attr(map, &(struct attr ){attr_active,.u.num=0});
1346                         }
1347                 }
1348                 navit_add_bookmarks_from_file(this_);
1349                 navit_add_former_destinations_from_file(this_);
1350         }
1351         if (this_->route) {
1352                 struct attr callback;
1353                 this_->route_cb=callback_new_attr_1(callback_cast(navit_redraw_route), attr_route_status, this_);
1354                 callback.type=attr_callback;
1355                 callback.u.callback=this_->route_cb;
1356                 route_add_attr(this_->route, &callback);
1357         }
1358         if (this_->navigation) {
1359                 if (this_->speech) {
1360                         this_->nav_speech_cb=callback_new_1(callback_cast(navit_speak), this_);
1361                         navigation_register_callback(this_->navigation, attr_navigation_speech, this_->nav_speech_cb);
1362                 }
1363                 if (this_->route)
1364                         navigation_set_route(this_->navigation, this_->route);
1365         }
1366         dbg(2,"Setting Center\n");
1367         char *center_file = navit_get_center_file(FALSE);
1368         navit_set_center_from_file(this_, center_file);
1369         g_free(center_file);
1370 #if 0
1371         if (this_->menubar) {
1372                 men=menu_add(this_->menubar, "Data", menu_type_submenu, NULL);
1373                 if (men) {
1374                         navit_add_menu_windows_items(this_, men);
1375                 }
1376         }
1377 #endif
1378         global_navit=this_;
1379 #if 0
1380         navit_window_roadbook_new(this_);
1381         navit_window_items_new(this_);
1382 #endif
1383
1384         messagelist_init(this_->messages);
1385
1386         navit_set_cursors(this_);
1387
1388         callback_list_call_attr_1(this_->attr_cbl, attr_navit, this_);
1389         this_->ready|=1;
1390         dbg(2,"ready=%d\n",this_->ready);
1391         if (this_->ready == 3)
1392                 navit_draw(this_);
1393 #if 0
1394         routech_test(this_);
1395 #endif
1396 }
1397
1398 void
1399 navit_zoom_to_route(struct navit *this_, int orientation)
1400 {
1401         struct map *map;
1402         struct map_rect *mr=NULL;
1403         struct item *item;
1404         struct coord c;
1405         struct coord_rect r;
1406         int count=0,scale=16;
1407         if (! this_->route)
1408                 return;
1409         dbg(1,"enter\n");
1410         map=route_get_map(this_->route);
1411         dbg(1,"map=%p\n",map);
1412         if (map)
1413                 mr=map_rect_new(map, NULL);
1414         dbg(1,"mr=%p\n",mr);
1415         if (mr) {
1416                 while ((item=map_rect_get_item(mr))) {
1417                         dbg(1,"item=%s\n", item_to_name(item->type));
1418                         while (item_coord_get(item, &c, 1)) {
1419                                 dbg(1,"coord\n");
1420                                 if (!count)
1421                                         r.lu=r.rl=c;
1422                                 else
1423                                         coord_rect_extend(&r, &c);
1424                                 count++;
1425                         }
1426                 }
1427         }
1428         if (! count)
1429                 return;
1430         c.x=(r.rl.x+r.lu.x)/2;
1431         c.y=(r.rl.y+r.lu.y)/2;
1432         dbg(1,"count=%d\n",count);
1433         if (orientation != -1)
1434                 transform_set_yaw(this_->trans, orientation);
1435         transform_set_center(this_->trans, &c);
1436         dbg(1,"%x,%x-%x,%x\n", r.rl.x,r.rl.y,r.lu.x,r.lu.y);
1437         while (scale < 1<<20) {
1438                 struct point p1,p2;
1439                 transform_set_scale(this_->trans, scale);
1440                 transform_setup_source_rect(this_->trans);
1441                 transform(this_->trans, transform_get_projection(this_->trans), &r.lu, &p1, 1, 0, 0, NULL);
1442                 transform(this_->trans, transform_get_projection(this_->trans), &r.rl, &p2, 1, 0, 0, NULL);
1443                 dbg(1,"%d,%d-%d,%d\n",p1.x,p1.y,p2.x,p2.y);
1444                 if (p1.x < 0 || p2.x < 0 || p1.x > this_->w || p2.x > this_->w ||
1445                     p1.y < 0 || p2.y < 0 || p1.y > this_->h || p2.y > this_->h)
1446                         scale*=2;
1447                 else
1448                         break;
1449
1450         }
1451         if (this_->ready == 3)
1452                 navit_draw_async(this_,0);
1453 }
1454
1455 static void
1456 navit_cmd_zoom_to_route(struct navit *this)
1457 {
1458         navit_zoom_to_route(this, 0);
1459 }
1460
1461
1462 /**
1463  * Change the current zoom level
1464  *
1465  * @param navit The navit instance
1466  * @param center The point where to center the map, including its projection
1467  * @returns nothing
1468  */
1469 void
1470 navit_set_center(struct navit *this_, struct pcoord *center, int set_timeout)
1471 {
1472         struct coord *c=transform_center(this_->trans);
1473         struct coord c1,c2;
1474         enum projection pro = transform_get_projection(this_->trans);
1475         if (pro != center->pro) {
1476                 c1.x = center->x;
1477                 c1.y = center->y;
1478                 transform_from_to(&c1, center->pro, &c2, pro);
1479         } else {
1480                 c2.x = center->x;
1481                 c2.y = center->y;
1482         }
1483         *c=c2;
1484         if (set_timeout)
1485                 navit_set_timeout(this_);
1486         if (this_->ready == 3)
1487                 navit_draw(this_);
1488 }
1489
1490 static void
1491 navit_set_center_coord_screen(struct navit *this_, struct coord *c, struct point *p, int set_timeout)
1492 {
1493         int width, height;
1494         struct point po;
1495         transform_set_center(this_->trans, c);
1496         transform_get_size(this_->trans, &width, &height);
1497         po.x=width/2;
1498         po.y=height/2;
1499         update_transformation(this_->trans, &po, p, NULL);
1500         if (set_timeout)
1501                 navit_set_timeout(this_);
1502 }
1503
1504 /**
1505  * Links all vehicles to a cursor depending on the current profile.
1506  *
1507  * @param this_ A navit instance
1508  * @author Ralph Sennhauser (10/2009)
1509  */
1510 static void
1511 navit_set_cursors(struct navit *this_)
1512 {
1513         struct attr name;
1514         struct navit_vehicle *nv;
1515         struct cursor *c;
1516         GList *v;
1517
1518         v=g_list_first(this_->vehicles); // GList of navit_vehicles
1519         while (v) {
1520                 nv=v->data;
1521                 if (vehicle_get_attr(nv->vehicle, attr_cursorname, &name, NULL))
1522                         c=layout_get_cursor(this_->layout_current, name.u.str);
1523                 else
1524                         c=layout_get_cursor(this_->layout_current, "default");
1525                 vehicle_set_cursor(nv->vehicle, c);
1526                 v=g_list_next(v);
1527         }
1528         return;
1529 }
1530
1531 static int
1532 navit_get_cursor_pnt(struct navit *this_, struct point *p, int *dir)
1533 {
1534         int width, height;
1535         struct navit_vehicle *nv=this_->vehicle;
1536
1537         float offset=30;            // Cursor offset from the center of the screen (percent).
1538 #if 0 /* Better improve track.c to get that issue resolved or make it configurable with being off the default, the jumping back to the center is a bit annoying */
1539         float min_offset = 0.;      // Percent offset at min_offset_speed.
1540         float max_offset = 30.;     // Percent offset at max_offset_speed.
1541         int min_offset_speed = 2;   // Speed in km/h
1542         int max_offset_speed = 50;  // Speed ini km/h
1543         // Calculate cursor offset from the center of the screen, upon speed.
1544         if (nv->speed <= min_offset_speed) {
1545             offset = min_offset;
1546         } else if (nv->speed > max_offset_speed) {
1547             offset = max_offset;
1548         } else {
1549             offset = (max_offset - min_offset) / (max_offset_speed - min_offset_speed) * (nv->speed - min_offset_speed);
1550         }
1551 #endif
1552
1553         transform_get_size(this_->trans, &width, &height);
1554         if (this_->orientation == -1) {
1555                 p->x=50*width/100;
1556                 p->y=(50 + offset)*height/100;
1557                 if (dir)
1558                         *dir=nv->dir;
1559         } else {
1560                 int mdir;
1561                 if (this_->tracking && this_->tracking_flag) {
1562                         mdir = tracking_get_angle(this_->tracking) - this_->orientation;
1563                 } else {
1564                         mdir=nv->dir-this_->orientation;
1565                 }
1566
1567                 p->x=(50 - offset*sin(M_PI*mdir/180.))*width/100;
1568                 p->y=(50 + offset*cos(M_PI*mdir/180.))*height/100;
1569                 if (dir)
1570                         *dir=this_->orientation;
1571         }
1572         return 1;
1573 }
1574
1575 static void
1576 navit_set_center_cursor(struct navit *this_)
1577 {
1578         int dir;
1579         struct point pn;
1580         struct navit_vehicle *nv=this_->vehicle;
1581         navit_get_cursor_pnt(this_, &pn, &dir);
1582         transform_set_yaw(this_->trans, dir);
1583         navit_set_center_coord_screen(this_, &nv->coord, &pn, 0);
1584         navit_autozoom(this_, &nv->coord, nv->speed, 0);
1585         if (this_->ready == 3)
1586                 navit_draw_async(this_, 1);
1587 }
1588
1589 static void
1590 navit_cmd_set_center_cursor(struct navit *this_)
1591 {
1592         navit_set_center_cursor(this_);
1593 }
1594
1595 void
1596 navit_set_center_screen(struct navit *this_, struct point *p, int set_timeout)
1597 {
1598         struct coord c;
1599         struct pcoord pc;
1600         transform_reverse(this_->trans, p, &c);
1601         pc.x = c.x;
1602         pc.y = c.y;
1603         pc.pro = transform_get_projection(this_->trans);
1604         navit_set_center(this_, &pc, set_timeout);
1605 }
1606
1607 #if 0
1608                 switch((*attrs)->type) {
1609                 case attr_zoom:
1610                         zoom=(*attrs)->u.num;
1611                         break;
1612                 case attr_center:
1613                         g=*((*attrs)->u.coord_geo);
1614                         break;
1615 #endif
1616
1617 static int
1618 navit_set_attr_do(struct navit *this_, struct attr *attr, int init)
1619 {
1620         int dir=0, orient_old=0, attr_updated=0;
1621         struct coord co;
1622         long zoom;
1623         GList *l;
1624         struct navit_vehicle *nv;
1625         struct attr active=(struct attr){attr_active,{(void *)0}};
1626
1627         switch (attr->type) {
1628         case attr_autozoom:
1629                 attr_updated=(this_->autozoom_secs != attr->u.num);
1630                 this_->autozoom_secs = attr->u.num;
1631                 break;
1632         case attr_autozoom_active:
1633                 attr_updated=(this_->autozoom_active != attr->u.num);
1634                 this_->autozoom_active = attr->u.num;
1635                 break;
1636         case attr_center:
1637                 transform_from_geo(transform_get_projection(this_->trans), attr->u.coord_geo, &co);
1638                 dbg(1,"0x%x,0x%x\n",co.x,co.y);
1639                 transform_set_center(this_->trans, &co);
1640                 break;
1641         case attr_drag_bitmap:
1642                 attr_updated=(this_->drag_bitmap != !!attr->u.num);
1643                 this_->drag_bitmap=!!attr->u.num;
1644                 break;
1645         case attr_flags_graphics:
1646                 attr_updated=(this_->graphics_flags != attr->u.num);
1647                 this_->graphics_flags=attr->u.num;
1648                 break;
1649         case attr_follow:
1650                 if (!this_->vehicle)
1651                         return 0;
1652                 attr_updated=(this_->vehicle->follow_curr != attr->u.num);
1653                 this_->vehicle->follow_curr = attr->u.num;
1654                 break;
1655         case attr_layout:
1656                 if(this_->layout_current!=attr->u.layout) {
1657                         this_->layout_current=attr->u.layout;
1658                         graphics_font_destroy_all(this_->gra);
1659                         navit_set_cursors(this_);
1660                         if (this_->ready == 3)
1661                                 navit_draw(this_);
1662                         attr_updated=1;
1663                 }
1664                 break;
1665         case attr_orientation:
1666                 orient_old=this_->orientation;
1667                 this_->orientation=attr->u.num;
1668                 if (!init) {
1669                         if (this_->orientation != -1) {
1670                                 dir = this_->orientation;
1671                         } else {
1672                                 if (this_->vehicle) {
1673                                         dir = this_->vehicle->dir;
1674                                 }
1675                         }
1676                         transform_set_yaw(this_->trans, dir);
1677                         if (orient_old != this_->orientation) {
1678 #if 0
1679                                 if (this_->ready == 3)
1680                                         navit_draw(this_);
1681 #endif
1682                                 attr_updated=1;
1683                         }
1684                 }
1685                 break;
1686         case attr_osd_configuration:
1687                 dbg(0,"setting osd_configuration to %d (was %d)\n", attr->u.num, this_->osd_configuration);
1688                 attr_updated=(this_->osd_configuration != attr->u.num);
1689                 this_->osd_configuration=attr->u.num;
1690                 break;
1691         case attr_pitch:
1692                 attr_updated=(this_->pitch != attr->u.num);
1693                 this_->pitch=attr->u.num;
1694                 transform_set_pitch(this_->trans, this_->pitch);
1695                 if (!init && attr_updated && this_->ready == 3)
1696                         navit_draw(this_);
1697                 break;
1698         case attr_projection:
1699                 if(this_->trans && transform_get_projection(this_->trans) != attr->u.projection) {
1700                         navit_projection_set(this_, attr->u.projection);
1701                         attr_updated=1;
1702                 }
1703                 break;
1704         case attr_recent_dest:
1705                 attr_updated=(this_->recentdest_count != attr->u.num);
1706                 this_->recentdest_count=attr->u.num;
1707                 break;
1708         case attr_speech:
1709                 if(this_->speech && this_->speech != attr->u.speech) {
1710                         attr_updated=1;
1711                         this_->speech = attr->u.speech;
1712                 }
1713                 break;
1714         case attr_timeout:
1715                 attr_updated=(this_->center_timeout != attr->u.num);
1716                 this_->center_timeout = attr->u.num;
1717                 break;
1718         case attr_tracking:
1719                 attr_updated=(this_->tracking_flag != !!attr->u.num);
1720                 this_->tracking_flag=!!attr->u.num;
1721                 break;
1722         case attr_use_mousewheel:
1723                 attr_updated=(this_->use_mousewheel != !!attr->u.num);
1724                 this_->use_mousewheel=!!attr->u.num;
1725                 break;
1726         case attr_vehicle:
1727                 l=this_->vehicles;
1728                 while(l) {
1729                         nv=l->data;
1730                         if (nv->vehicle == attr->u.vehicle) {
1731                                 if (!this_->vehicle || this_->vehicle->vehicle != attr->u.vehicle) {
1732                                         if (this_->vehicle)
1733                                                 vehicle_set_attr(this_->vehicle->vehicle, &active);
1734                                         active.u.num=1;
1735                                         vehicle_set_attr(nv->vehicle, &active);
1736                                         attr_updated=1;
1737                                 }
1738                                 navit_set_vehicle(this_, nv);
1739                         }
1740                         l=g_list_next(l);
1741                 }
1742                 break;
1743         case attr_zoom:
1744                 zoom=transform_get_scale(this_->trans);
1745                 attr_updated=(zoom != attr->u.num);
1746                 transform_set_scale(this_->trans, attr->u.num);
1747                 if (attr_updated && !init)
1748                         navit_draw(this_);
1749                 break;
1750         case attr_message:
1751                 navit_add_message(this_, attr->u.str);
1752                 break;
1753         case attr_follow_cursor:
1754                 attr_updated=(this_->follow_cursor != !!attr->u.num);
1755                 this_->follow_cursor=!!attr->u.num;
1756                 break;
1757         default:
1758                 return 0;
1759         }
1760         if (attr_updated && !init) {
1761                 callback_list_call_attr_2(this_->attr_cbl, attr->type, this_, attr);
1762                 if (attr->type == attr_osd_configuration)
1763                         graphics_draw_mode(this_->gra, draw_mode_end);
1764         }
1765         return 1;
1766 }
1767
1768 int
1769 navit_set_attr(struct navit *this_, struct attr *attr)
1770 {
1771         return navit_set_attr_do(this_, attr, 0);
1772 }
1773
1774 int
1775 navit_get_attr(struct navit *this_, enum attr_type type, struct attr *attr, struct attr_iter *iter)
1776 {
1777         struct message *msg;
1778         int len,offset;
1779         int ret=1;
1780
1781         switch (type) {
1782         case attr_message:
1783                 msg = navit_get_messages(this_);
1784
1785                 if (!msg) {
1786                         return 0;
1787                 }
1788
1789                 len = 0;
1790                 while (msg) {
1791                         len += strlen(msg->text) + 1;
1792                         msg = msg->next;
1793                 }
1794                 attr->u.str = g_malloc(len + 1);
1795
1796                 msg = navit_get_messages(this_);
1797                 offset = 0;
1798                 while (msg) {
1799                         g_stpcpy((attr->u.str + offset), msg->text);
1800                         offset += strlen(msg->text);
1801                         attr->u.str[offset] = '\n';
1802                         offset++;
1803
1804                         msg = msg->next;
1805                 }
1806
1807                 attr->u.str[len] = '\0';
1808                 break;
1809         case attr_bookmark_map:
1810                 attr->u.map=this_->bookmark;
1811                 break;
1812         case attr_callback_list:
1813                 attr->u.callback_list=this_->attr_cbl;
1814                 break;
1815         case attr_destination:
1816                 if (! this_->destination_valid)
1817                         return 0;
1818                 attr->u.pcoord=&this_->destination;
1819                 break;
1820         case attr_displaylist:
1821                 attr->u.displaylist=this_->displaylist;
1822                 return (attr->u.displaylist != NULL);
1823         case attr_former_destination_map:
1824                 attr->u.map=this_->former_destination;
1825                 break;
1826         case attr_graphics:
1827                 attr->u.graphics=this_->gra;
1828                 ret=(attr->u.graphics != NULL);
1829                 break;
1830         case attr_gui:
1831                 attr->u.gui=this_->gui;
1832                 ret=(attr->u.gui != NULL);
1833                 break;
1834         case attr_layout:
1835                 if (iter) {
1836                         if (iter->u.list) {
1837                                 iter->u.list=g_list_next(iter->u.list);
1838                         } else {
1839                                 iter->u.list=this_->layouts;
1840                         }
1841                         if (!iter->u.list)
1842                                 return 0;
1843                         attr->u.layout=(struct layout *)iter->u.list->data;
1844                 } else {
1845                         attr->u.layout=this_->layout_current;
1846                 }
1847                 break;
1848         case attr_map:
1849                 if (iter && this_->mapsets) {
1850                         if (!iter->u.mapset_handle) {
1851                                 iter->u.mapset_handle=mapset_open((struct mapset *)this_->mapsets->data);
1852                         }
1853                         attr->u.map=mapset_next(iter->u.mapset_handle, 0);
1854                         if(!attr->u.map) {
1855                                 mapset_close(iter->u.mapset_handle);
1856                                 return 0;
1857                         }
1858                 } else {
1859                         return 0;
1860                 }
1861                 break;
1862         case attr_mapset:
1863                 attr->u.mapset=this_->mapsets->data;
1864                 return (attr->u.mapset != NULL);
1865         case attr_navigation:
1866                 attr->u.navigation=this_->navigation;
1867                 break;
1868         case attr_orientation:
1869                 attr->u.num=this_->orientation;
1870                 break;
1871         case attr_osd_configuration:
1872                 attr->u.num=this_->osd_configuration;
1873                 break;
1874         case attr_pitch:
1875                 attr->u.num=transform_get_pitch(this_->trans);
1876                 break;
1877         case attr_projection:
1878                 if(this_->trans) {
1879                         attr->u.num=transform_get_projection(this_->trans);
1880                 } else {
1881                         return 0;
1882                 }
1883                 break;
1884         case attr_route:
1885                 attr->u.route=this_->route;
1886                 break;
1887         case attr_speech:
1888                 attr->u.speech=this_->speech;
1889                 break;
1890         case attr_tracking:
1891                 attr->u.num=this_->tracking_flag;
1892                 break;
1893         case attr_transformation:
1894                 attr->u.transformation=this_->trans;
1895                 break;
1896         case attr_vehicle:
1897                 if(iter) {
1898                         if(iter->u.list) {
1899                                 iter->u.list=g_list_next(iter->u.list);
1900                         } else {
1901                                 iter->u.list=this_->vehicles;
1902                         }
1903                         if(!iter->u.list)
1904                                 return 0;
1905                         attr->u.vehicle=((struct navit_vehicle*)iter->u.list->data)->vehicle;
1906                 } else {
1907                         if(this_->vehicle) {
1908                                 attr->u.vehicle=this_->vehicle->vehicle;
1909                         } else {
1910                                 return 0;
1911                         }
1912                 }
1913                 break;
1914         case attr_zoom:
1915                 attr->u.num=transform_get_scale(this_->trans);
1916                 break;
1917         case attr_autozoom_active:
1918                 attr->u.num=this_->autozoom_active;
1919                 break;
1920         case attr_follow_cursor:
1921                 attr->u.num=this_->follow_cursor;
1922                 break;
1923         default:
1924                 return 0;
1925         }
1926         attr->type=type;
1927         return ret;
1928 }
1929
1930 static int
1931 navit_add_log(struct navit *this_, struct log *log)
1932 {
1933         struct attr type_attr;
1934         if (!log_get_attr(log, attr_type, &type_attr, NULL))
1935                 return 0;
1936         if (!strcmp(type_attr.u.str, "textfile_debug")) {
1937                 char *header = "type=track_tracked\n";
1938                 if (this_->textfile_debug_log)
1939                         return 0;
1940                 log_set_header(log, header, strlen(header));
1941                 this_->textfile_debug_log=log;
1942                 return 1;
1943         }
1944         return 0;
1945 }
1946
1947 int
1948 navit_add_attr(struct navit *this_, struct attr *attr)
1949 {
1950         int ret=1;
1951         switch (attr->type) {
1952         case attr_callback:
1953                 navit_add_callback(this_, attr->u.callback);
1954                 break;
1955         case attr_log:
1956                 ret=navit_add_log(this_, attr->u.log);
1957                 break;
1958         case attr_gui:
1959                 ret=navit_set_gui(this_, attr->u.gui);
1960                 break;
1961         case attr_graphics:
1962                 ret=navit_set_graphics(this_, attr->u.graphics);
1963                 break;
1964         case attr_layout:
1965                 this_->layouts = g_list_append(this_->layouts, attr->u.layout);
1966                 if(!this_->layout_current)
1967                         this_->layout_current=attr->u.layout;
1968                 break;
1969         case attr_route:
1970                 this_->route=attr->u.route;
1971                 break;
1972         case attr_mapset:
1973                 this_->mapsets = g_list_append(this_->mapsets, attr->u.mapset);
1974                 break;
1975         case attr_navigation:
1976                 this_->navigation=attr->u.navigation;
1977                 break;
1978         case attr_recent_dest:
1979                 this_->recentdest_count = attr->u.num;
1980                 break;
1981         case attr_speech:
1982                 this_->speech=attr->u.speech;
1983                 break;
1984         case attr_tracking:
1985                 this_->tracking=attr->u.tracking;
1986                 break;
1987         case attr_vehicle:
1988                 ret=navit_add_vehicle(this_, attr->u.vehicle);
1989                 break;
1990         case attr_vehicleprofile:
1991                 this_->vehicleprofiles=g_list_prepend(this_->vehicleprofiles, attr->u.vehicleprofile);
1992                 break;
1993         case attr_autozoom_min:
1994                 this_->autozoom_min = attr->u.num;
1995                 break;
1996         default:
1997                 return 0;
1998         }
1999         callback_list_call_attr_2(this_->attr_cbl, attr->type, this_, attr);
2000         return ret;
2001 }
2002
2003 int
2004 navit_remove_attr(struct navit *this_, struct attr *attr)
2005 {
2006         int ret=1;
2007         switch (attr->type) {
2008         case attr_callback:
2009                 navit_remove_callback(this_, attr->u.callback);
2010                 break;
2011         default:
2012                 return 0;
2013         }
2014         return ret;
2015 }
2016
2017 struct attr_iter *
2018 navit_attr_iter_new(void)
2019 {
2020         return g_new0(struct attr_iter, 1);
2021 }
2022
2023 void
2024 navit_attr_iter_destroy(struct attr_iter *iter)
2025 {
2026         g_free(iter);
2027 }
2028
2029 void
2030 navit_add_callback(struct navit *this_, struct callback *cb)
2031 {
2032         callback_list_add(this_->attr_cbl, cb);
2033 }
2034
2035 void
2036 navit_remove_callback(struct navit *this_, struct callback *cb)
2037 {
2038         callback_list_remove(this_->attr_cbl, cb);
2039 }
2040
2041 /**
2042  * Toggle the cursor update : refresh the map each time the cursor has moved (instead of only when it reaches a border)
2043  *
2044  * @param navit The navit instance
2045  * @returns nothing
2046  */
2047
2048 static void
2049 navit_vehicle_draw(struct navit *this_, struct navit_vehicle *nv, struct point *pnt)
2050 {
2051         struct point cursor_pnt;
2052         enum projection pro;
2053
2054         if (this_->blocked)
2055                 return;
2056         if (pnt)
2057                 cursor_pnt=*pnt;
2058         else {
2059                 pro=transform_get_projection(this_->trans);
2060                 transform(this_->trans, pro, &nv->coord, &cursor_pnt, 1, 0, 0, NULL);
2061         }
2062         vehicle_draw(nv->vehicle, this_->gra, &cursor_pnt, pnt ? 0:1, nv->dir-transform_get_yaw(this_->trans), nv->speed);
2063 #if 0
2064         if (pnt)
2065                 pnt2=*pnt;
2066         else {
2067                 pro=transform_get_projection(this_->trans);
2068                 transform(this_->trans, pro, &nv->coord, &pnt2, 1);
2069         }
2070 #if 1
2071         cursor_draw(nv->cursor, &pnt2, nv->dir-transform_get_angle(this_->trans, 0), nv->speed > 2, pnt == NULL);
2072 #else
2073         cursor_draw(nv->cursor, &pnt2, nv->dir-transform_get_angle(this_->trans, 0), nv->speed > 2, 1);
2074 #endif
2075 #endif
2076 }
2077
2078 static void
2079 navit_vehicle_update(struct navit *this_, struct navit_vehicle *nv)
2080 {
2081         struct attr attr_valid, attr_dir, attr_speed, attr_pos;
2082         struct pcoord cursor_pc;
2083         struct point cursor_pnt, *pnt=&cursor_pnt;
2084         struct tracking *tracking=NULL;
2085         enum projection pro=transform_get_projection(this_->trans);
2086         int border=16;
2087         int (*get_attr)(void *, enum attr_type, struct attr *, struct attr_iter *);
2088         void *attr_object;
2089
2090         profile(0,NULL);
2091         if (this_->ready != 3) {
2092                 profile(0,"return 1\n");
2093                 return;
2094         }
2095         navit_layout_switch(this_);
2096         if (this_->vehicle == nv && this_->tracking_flag)
2097                 tracking=this_->tracking;
2098         if (tracking) {
2099                 tracking_update(tracking, nv->vehicle, this_->vehicleprofile, pro);
2100                 attr_object=tracking;
2101                 get_attr=(int (*)(void *, enum attr_type, struct attr *, struct attr_iter *))tracking_get_attr;
2102         } else {
2103                 attr_object=nv->vehicle;
2104                 get_attr=(int (*)(void *, enum attr_type, struct attr *, struct attr_iter *))vehicle_get_attr;
2105         }
2106         if (get_attr(attr_object, attr_position_valid, &attr_valid, NULL))
2107                 if (!attr_valid.u.num != attr_position_valid_invalid)
2108                         return;
2109         if (! get_attr(attr_object, attr_position_direction, &attr_dir, NULL) ||
2110             ! get_attr(attr_object, attr_position_speed, &attr_speed, NULL) ||
2111             ! get_attr(attr_object, attr_position_coord_geo, &attr_pos, NULL)) {
2112                 profile(0,"return 2\n");
2113                 return;
2114         }
2115         nv->dir=*attr_dir.u.numd;
2116         nv->speed=*attr_speed.u.numd;
2117         transform_from_geo(pro, attr_pos.u.coord_geo, &nv->coord);
2118         if (nv != this_->vehicle) {
2119                 navit_vehicle_draw(this_, nv, NULL);
2120                 profile(0,"return 3\n");
2121                 return;
2122         }
2123         cursor_pc.x = nv->coord.x;
2124         cursor_pc.y = nv->coord.y;
2125         cursor_pc.pro = pro;
2126         if (this_->route) {
2127                 if (tracking)
2128                         route_set_position_from_tracking(this_->route, tracking, pro);
2129                 else
2130                         route_set_position(this_->route, &cursor_pc);
2131         }
2132         callback_list_call_attr_0(this_->attr_cbl, attr_position);
2133         navit_textfile_debug_log(this_, "type=trackpoint_tracked");
2134         if (this_->gui && nv->speed > 2)
2135                 gui_disable_suspend(this_->gui);
2136
2137         transform(this_->trans, pro, &nv->coord, &cursor_pnt, 1, 0, 0, NULL);
2138         if (this_->button_pressed != 1 && this_->follow_cursor && nv->follow_curr <= nv->follow &&
2139                 (nv->follow_curr == 1 || !transform_within_border(this_->trans, &cursor_pnt, border)))
2140                 navit_set_center_cursor(this_);
2141         else
2142                 navit_vehicle_draw(this_, nv, pnt);
2143
2144         if (nv->follow_curr > 1)
2145                 nv->follow_curr--;
2146         else
2147                 nv->follow_curr=nv->follow;
2148         callback_list_call_attr_2(this_->attr_cbl, attr_position_coord_geo, this_, nv->vehicle);
2149
2150         /* Finally, if we reached our destination, stop navigation. */
2151         if (this_->route && route_destination_reached(this_->route)) {
2152                 navit_set_destination(this_, NULL, NULL, 0);
2153         }
2154         profile(0,"return 5\n");
2155 }
2156
2157 /**
2158  * Set the position of the vehicle
2159  *
2160  * @param navit The navit instance
2161  * @param c The coordinate to set as position
2162  * @returns nothing
2163  */
2164
2165 void
2166 navit_set_position(struct navit *this_, struct pcoord *c)
2167 {
2168         if (this_->route) {
2169                 route_set_position(this_->route, c);
2170                 callback_list_call_attr_0(this_->attr_cbl, attr_position);
2171         }
2172         if (this_->ready == 3)
2173                 navit_draw(this_);
2174 }
2175
2176 static int
2177 navit_set_vehicleprofile(struct navit *this_, char *name)
2178 {
2179         struct attr attr;
2180         GList *l;
2181         l=this_->vehicleprofiles;
2182         while (l) {
2183                 if (vehicleprofile_get_attr(l->data, attr_name, &attr, NULL)) {
2184                         if (!strcmp(attr.u.str, name)) {
2185                                 this_->vehicleprofile=l->data;
2186                                 if (this_->route)
2187                                         route_set_profile(this_->route, this_->vehicleprofile);
2188                                 return 1;
2189                         }
2190                 }
2191                 l=g_list_next(l);
2192         }
2193         return 0;
2194 }
2195
2196 static void
2197 navit_set_vehicle(struct navit *this_, struct navit_vehicle *nv)
2198 {
2199         struct attr attr;
2200         this_->vehicle=nv;
2201         if (nv && vehicle_get_attr(nv->vehicle, attr_profilename, &attr, NULL)) {
2202                 if (navit_set_vehicleprofile(this_, attr.u.str))
2203                         return;
2204         }
2205         navit_set_vehicleprofile(this_,"car");
2206 }
2207
2208 /**
2209  * Register a new vehicle
2210  *
2211  * @param navit The navit instance
2212  * @param v The vehicle instance
2213  * @returns 1 for success
2214  */
2215 static int
2216 navit_add_vehicle(struct navit *this_, struct vehicle *v)
2217 {
2218         struct navit_vehicle *nv=g_new0(struct navit_vehicle, 1);
2219         struct attr follow, active, animate;
2220         nv->vehicle=v;
2221         nv->follow=0;
2222         nv->last.x = 0;
2223         nv->last.y = 0;
2224         nv->animate_cursor=0;
2225         if ((vehicle_get_attr(v, attr_follow, &follow, NULL)))
2226                 nv->follow=nv->follow=follow.u.num;
2227         nv->follow_curr=nv->follow;
2228         this_->vehicles=g_list_append(this_->vehicles, nv);
2229         if ((vehicle_get_attr(v, attr_active, &active, NULL)) && active.u.num)
2230                 navit_set_vehicle(this_, nv);
2231         if ((vehicle_get_attr(v, attr_animate, &animate, NULL)))
2232                 nv->animate_cursor=animate.u.num;
2233         nv->callback.type=attr_callback;
2234         nv->callback.u.callback=callback_new_attr_2(callback_cast(navit_vehicle_update), attr_position_coord_geo, this_, nv);
2235         vehicle_add_attr(nv->vehicle, &nv->callback);
2236         vehicle_set_attr(nv->vehicle, &this_->self);
2237         return 1;
2238 }
2239
2240
2241
2242
2243 struct gui *
2244 navit_get_gui(struct navit *this_)
2245 {
2246         return this_->gui;
2247 }
2248
2249 struct transformation *
2250 navit_get_trans(struct navit *this_)
2251 {
2252         return this_->trans;
2253 }
2254
2255 struct route *
2256 navit_get_route(struct navit *this_)
2257 {
2258         return this_->route;
2259 }
2260
2261 struct navigation *
2262 navit_get_navigation(struct navit *this_)
2263 {
2264         return this_->navigation;
2265 }
2266
2267 struct displaylist *
2268 navit_get_displaylist(struct navit *this_)
2269 {
2270         return this_->displaylist;
2271 }
2272
2273 void
2274 navit_layout_switch(struct navit *n)
2275 {
2276
2277     int currTs=0;
2278     struct attr iso8601_attr,geo_attr,layout_attr;
2279     double trise,tset,trise_actual;
2280     struct layout *l;
2281     int year, month, day;
2282
2283     if (navit_get_attr(n,attr_layout,&layout_attr,NULL)!=1) {
2284         return; //No layout - nothing to switch
2285     }
2286     l=layout_attr.u.layout;
2287
2288     if (l->dayname || l->nightname) {
2289         //Ok, we know that we have profile to switch
2290
2291         //Check that we aren't calculating too fast
2292         if (vehicle_get_attr(n->vehicle->vehicle, attr_position_time_iso8601,&iso8601_attr,NULL)==1) {
2293                 currTs=iso8601_to_secs(iso8601_attr.u.str);
2294         }
2295         if (currTs-(n->prevTs)<60) {
2296             //We've have to wait a little
2297             return;
2298         }
2299         if (sscanf(iso8601_attr.u.str,"%d-%02d-%02dT",&year,&month,&day) != 3)
2300                 return;
2301         if (vehicle_get_attr(n->vehicle->vehicle, attr_position_coord_geo,&geo_attr,NULL)!=1) {
2302                 //No position - no sun
2303                 return;
2304         }
2305         if (vehicle_get_attr(n->vehicle->vehicle, attr_position_valid, &geo_attr,NULL) && geo_attr.u.num==attr_position_valid_invalid) {
2306                 return; //No valid fix yet
2307         }
2308
2309         //We calculate sunrise anyway, cause it is need both for day and for night
2310         if (__sunriset__(year,month,day,geo_attr.u.coord_geo->lat,geo_attr.u.coord_geo->lng,35,1,&trise,&tset)!=0) {
2311                 //near the pole sun never rises/sets, so we should never switch profiles
2312                 n->prevTs=currTs;
2313                 return;
2314             }
2315
2316         trise_actual=trise;
2317
2318         if (l->dayname) {
2319
2320             if ((HOURS(trise)*60+MINUTES(trise)==(currTs%86400)/60) ||
2321                     (n->prevTs==0 && ((HOURS(trise)*60+MINUTES(trise)<(currTs%86400)/60)))) {
2322                 //The sun is rising now!
2323                 if (strcmp(l->name,l->dayname)) {
2324                     navit_set_layout_by_name(n,l->dayname);
2325                 }
2326             }
2327         }
2328         if (l->nightname) {
2329             if (__sunriset__(year,month,day,geo_attr.u.coord_geo->lat,geo_attr.u.coord_geo->lng,-12,0,&trise,&tset)!=0) {
2330                 //near the pole sun never rises/sets, so we should never switch profiles
2331                 n->prevTs=currTs;
2332                 return;
2333             }
2334
2335             if (HOURS(tset)*60+MINUTES(tset)==((currTs%86400)/60)
2336                 || (n->prevTs==0 && (((HOURS(tset)*60+MINUTES(tset)<(currTs%86400)/60)) ||
2337                         ((HOURS(trise_actual)*60+MINUTES(trise_actual)>(currTs%86400)/60))))) {
2338                 //Time to sleep
2339                 if (strcmp(l->name,l->nightname)) {
2340                     navit_set_layout_by_name(n,l->nightname);
2341                 }
2342             }
2343         }
2344
2345         n->prevTs=currTs;
2346     }
2347 }
2348
2349 int
2350 navit_set_layout_by_name(struct navit *n,char *name)
2351 {
2352     struct layout *l;
2353     struct attr_iter iter;
2354     struct attr layout_attr;
2355
2356     iter.u.list=0x00;
2357
2358     if (navit_get_attr(n,attr_layout,&layout_attr,&iter)!=1) {
2359         return 0; //No layouts - nothing to do
2360     }
2361     if (iter.u.list==NULL) {
2362         return 0;
2363     }
2364
2365     iter.u.list=g_list_first(iter.u.list);
2366
2367     while(iter.u.list) {
2368         l=(struct layout*)iter.u.list->data;
2369         if (!strcmp(name,l->name)) {
2370             layout_attr.u.layout=l;
2371             layout_attr.type=attr_layout;
2372             navit_set_attr(n,&layout_attr);
2373             iter.u.list=g_list_first(iter.u.list);
2374             return 1;
2375         }
2376         iter.u.list=g_list_next(iter.u.list);
2377     }
2378
2379     iter.u.list=g_list_first(iter.u.list);
2380     return 0;
2381 }
2382
2383 int
2384 navit_block(struct navit *this_, int block)
2385 {
2386         if (block) {
2387                 this_->blocked |= 1;
2388                 if (graphics_draw_cancel(this_->gra, this_->displaylist))
2389                         this_->blocked |= 2;
2390                 return 0;
2391         }
2392         if (this_->blocked & 2) {
2393                 this_->blocked=0;
2394                 navit_draw(this_);
2395                 return 1;
2396         }
2397         this_->blocked=0;
2398         return 0;
2399 }
2400
2401 void
2402 navit_destroy(struct navit *this_)
2403 {
2404         /* TODO: destroy objects contained in this_ */
2405         if (this_->vehicle)
2406                 vehicle_destroy(this_->vehicle->vehicle);
2407         char *center_file = navit_get_center_file(TRUE);
2408         navit_write_center_to_file(this_, center_file);
2409         g_free(center_file);
2410         callback_destroy(this_->nav_speech_cb);
2411         callback_destroy(this_->roadbook_callback);
2412         callback_destroy(this_->popup_callback);
2413         callback_destroy(this_->motion_timeout_callback);
2414         if(this_->gra)
2415           graphics_remove_callback(this_->gra, this_->resize_callback);
2416         callback_destroy(this_->resize_callback);
2417         if(this_->gra)
2418           graphics_remove_callback(this_->gra, this_->button_callback);
2419         callback_destroy(this_->button_callback);
2420         if(this_->gra)
2421           graphics_remove_callback(this_->gra, this_->motion_callback);
2422         callback_destroy(this_->motion_callback);
2423         g_free(this_);
2424 }
2425
2426 /** @} */