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

   1 /**
   2  * Navit, a modular navigation system.
   3  * Copyright (C) 2005-2008 Navit Team
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * version 2 as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include <stdio.h>
  21 #include <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 "cursor.h"
  46 #include "popup.h"
  47 #include "data_window.h"
  48 #include "route.h"
  49 #include "navigation.h"
  50 #include "speech.h"
  51 #include "track.h"
  52 #include "vehicle.h"
  53 #include "color.h"
  54 #include "layout.h"
  55 #include "log.h"
  56 #include "attr.h"
  57 #include "event.h"
  58 #include "file.h"
  59 #include "profile.h"
  60 #include "command.h"
  61 #include "navit_nls.h"
  62 #include "util.h"
  63 #include "messages.h"
  64 #include "vehicleprofile.h"
  65
  66 /**
  67  * @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
  68  * @{
  69  */
  70
  71 //! The navit_vehicule
  72 struct navit_vehicle {
  73         int follow;
  74         /*! Limit of the follow counter. See navit_add_vehicle */
  75         int follow_curr;
  76         /*! Deprecated : follow counter itself. When it reaches 'update' counts, map is recentered*/
  77         struct coord coord;
  78         int dir;
  79         int speed;
  80         struct coord last; /*< Position of the last update of this vehicle */
  81         struct color c;
  82         struct color *c2;
  83         struct cursor *cursor;
  84         struct vehicle *vehicle;
  85         struct attr callback;
  86         int animate_cursor;
  87 };
  88
  89 struct navit {
  90         struct attr self;
  91         GList *mapsets;
  92         GList *layouts;
  93         struct gui *gui;
  94         struct layout *layout_current;
  95         struct graphics *gra;
  96         struct action *action;
  97         struct transformation *trans;
  98         struct compass *compass;
  99         struct route *route;
 100         struct navigation *navigation;
 101         struct speech *speech;
 102         struct tracking *tracking;
 103         int ready;
 104         struct window *win;
 105         struct displaylist *displaylist;
 106         int tracking_flag;
 107         int orientation;
 108         int recentdest_count;
 109         int osd_configuration;
 110         GList *vehicles;
 111         GList *windows_items;
 112         struct navit_vehicle *vehicle;
 113         struct callback_list *attr_cbl;
 114         struct callback *nav_speech_cb, *roadbook_callback, *popup_callback, *route_cb;
 115         struct datawindow *roadbook_window;
 116         struct map *bookmark;
 117         struct map *former_destination;
 118         GHashTable *bookmarks_hash;
 119         struct point pressed, last, current;
 120         int button_pressed,moved,popped,zoomed;
 121         int center_timeout;
 122         int autozoom_secs;
 123         int autozoom_min;
 124         int autozoom_active;
 125         struct event_timeout *button_timeout, *motion_timeout;
 126         struct callback *motion_timeout_callback;
 127         int ignore_button;
 128         int ignore_graphics_events;
 129         struct log *textfile_debug_log;
 130         struct pcoord destination;
 131         int destination_valid;
 132         int blocked;
 133         int w,h;
 134         int drag_bitmap;
 135         int use_mousewheel;
 136         struct messagelist *messages;
 137         struct callback *resize_callback,*button_callback,*motion_callback;
 138         struct vehicleprofile *vehicleprofile;
 139         GList *vehicleprofiles;
 140         int pitch;
 141 };
 142
 143 struct gui *main_loop_gui;
 144
 145 struct attr_iter {
 146         union {
 147                 GList *list;
 148                 struct mapset_handle *mapset_handle;
 149         } u;
 150 };
 151
 152 static void navit_vehicle_update(struct navit *this_, struct navit_vehicle *nv);
 153 static void navit_vehicle_draw(struct navit *this_, struct navit_vehicle *nv, struct point *pnt);
 154 static int navit_add_vehicle(struct navit *this_, struct vehicle *v);
 155 static int navit_set_attr_do(struct navit *this_, struct attr *attr, int init);
 156 static int navit_get_cursor_pnt(struct navit *this_, struct point *p, int *dir);
 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_set_vehicle(struct navit *this_, struct navit_vehicle *nv);
 160
 161 void
 162 navit_add_mapset(struct navit *this_, struct mapset *ms)
 163 {
 164         this_->mapsets = g_list_append(this_->mapsets, ms);
 165 }
 166
 167 struct mapset *
 168 navit_get_mapset(struct navit *this_)
 169 {
 170         if(this_->mapsets){
 171                 return this_->mapsets->data;
 172         } else {
 173                 dbg(0,"No mapsets enabled! Is it on purpose? Navit can't draw a map. Please check your navit.xml\n");
 174         }
 175         return NULL;
 176 }
 177
 178 struct tracking *
 179 navit_get_tracking(struct navit *this_)
 180 {
 181         return this_->tracking;
 182 }
 183
 184 static void
 185 navit_draw_async(struct navit *this_, int async)
 186 {
 187         GList *l;
 188         struct navit_vehicle *nv;
 189
 190         if (this_->blocked) {
 191                 this_->blocked |= 2;
 192                 return;
 193         }
 194         transform_setup_source_rect(this_->trans);
 195         l=this_->vehicles;
 196         while (l) {
 197                 nv=l->data;
 198                 navit_vehicle_draw(this_, nv, NULL);
 199                 l=g_list_next(l);
 200         }
 201         graphics_draw(this_->gra, this_->displaylist, this_->mapsets->data, this_->trans, this_->layout_current, async, NULL);
 202 }
 203
 204 void
 205 navit_draw(struct navit *this_)
 206 {
 207         navit_draw_async(this_, 0);
 208 }
 209
 210
 211 void
 212 navit_draw_displaylist(struct navit *this_)
 213 {
 214         if (this_->ready == 3)
 215                 graphics_displaylist_draw(this_->gra, this_->displaylist, this_->trans, this_->layout_current, 1);
 216 }
 217
 218 static void
 219 navit_redraw_route(struct navit *this_, struct route *route, struct attr *attr)
 220 {
 221         int updated;
 222         if (attr->type != attr_route_status)
 223                 return;
 224         updated=attr->u.num;
 225         if (this_->ready != 3)
 226                 return;
 227         if (updated != route_status_path_done_new)
 228                 return;
 229         if (this_->vehicle) {
 230                 if (this_->vehicle->follow_curr == 1)
 231                         return;
 232                 if (this_->vehicle->follow_curr <= this_->vehicle->follow)
 233                         this_->vehicle->follow_curr=this_->vehicle->follow;
 234         }
 235         navit_draw(this_);
 236 }
 237
 238 void
 239 navit_handle_resize(struct navit *this_, int w, int h)
 240 {
 241         struct map_selection sel;
 242         memset(&sel, 0, sizeof(sel));
 243         this_->w=w;
 244         this_->h=h;
 245         sel.u.p_rect.rl.x=w;
 246         sel.u.p_rect.rl.y=h;
 247         transform_set_screen_selection(this_->trans, &sel);
 248         this_->ready |= 2;
 249         graphics_set_rect(this_->gra, &sel.u.p_rect);
 250         if (this_->ready == 3)
 251                 navit_draw(this_);
 252 }
 253
 254 static void
 255 navit_resize(void *data, int w, int h)
 256 {
 257         struct navit *this=data;
 258         if (!this->ignore_graphics_events)
 259                 navit_handle_resize(this, w, h);
 260 }
 261
 262 int
 263 navit_get_width(struct navit *this_)
 264 {
 265         return this_->w;
 266 }
 267
 268
 269 int
 270 navit_get_height(struct navit *this_)
 271 {
 272         return this_->h;
 273 }
 274
 275 static void
 276 navit_popup(void *data)
 277 {
 278         struct navit *this_=data;
 279         popup(this_, 1, &this_->pressed);
 280         this_->button_timeout=NULL;
 281         this_->popped=1;
 282 }
 283
 284
 285 int
 286 navit_ignore_button(struct navit *this_)
 287 {
 288         if (this_->ignore_button)
 289                 return 1;
 290         this_->ignore_button=1;
 291         return 0;
 292 }
 293
 294 void
 295 navit_ignore_graphics_events(struct navit *this_, int ignore)
 296 {
 297         this_->ignore_graphics_events=ignore;
 298 }
 299
 300 static void
 301 update_transformation(struct transformation *tr, struct point *old, struct point *new, struct point *rot)
 302 {
 303         struct coord co,cn;
 304         struct coord c,*cp;
 305         int yaw;
 306         double angleo,anglen;
 307
 308         transform_reverse(tr, old, &co);
 309         if (rot) {
 310                 angleo=atan2(old->y-rot->y, old->x-rot->x)*180/M_PI;
 311                 anglen=atan2(new->y-rot->y, new->x-rot->x)*180/M_PI;
 312                 yaw=transform_get_yaw(tr)+angleo-anglen;
 313                 transform_set_yaw(tr, yaw % 360);
 314         }
 315         transform_reverse(tr, new, &cn);
 316         cp=transform_get_center(tr);
 317         c.x=cp->x+co.x-cn.x;
 318         c.y=cp->y+co.y-cn.y;
 319         dbg(1,"from 0x%x,0x%x to 0x%x,0x%x\n", cp->x, cp->y, c.x, c.y);
 320         transform_set_center(tr, &c);
 321 }
 322
 323 int
 324 navit_handle_button(struct navit *this_, int pressed, int button, struct point *p, struct callback *popup_callback)
 325 {
 326         int border=16;
 327
 328         callback_list_call_attr_4(this_->attr_cbl, attr_button, this_, (void *)pressed, (void *)button, p);
 329         if (this_->ignore_button) {
 330                 this_->ignore_button=0;
 331                 return 0;
 332         }
 333         if (pressed) {
 334                 this_->pressed=*p;
 335                 this_->last=*p;
 336                 this_->zoomed=0;
 337                 if (button == 1) {
 338                         this_->button_pressed=1;
 339                         this_->moved=0;
 340                         this_->popped=0;
 341                         if (popup_callback)
 342                                 this_->button_timeout=event_add_timeout(500, 0, popup_callback);
 343                 }
 344                 if (button == 2)
 345                         navit_set_center_screen(this_, p);
 346                 if (button == 3)
 347                         popup(this_, button, p);
 348                 if (button == 4 && this_->use_mousewheel) {
 349                         this_->zoomed = 1;
 350                         navit_zoom_in(this_, 2, p);
 351                 }
 352                 if (button == 5 && this_->use_mousewheel) {
 353                         this_->zoomed = 1;
 354                         navit_zoom_out(this_, 2, p);
 355                 }
 356         } else {
 357                 struct attr follow;
 358                 follow.type=attr_follow;
 359                 follow.u.num=this_->center_timeout;
 360
 361                 this_->button_pressed=0;
 362                 if (this_->button_timeout) {
 363                         event_remove_timeout(this_->button_timeout);
 364                         this_->button_timeout=NULL;
 365                         if (! this_->moved && ! transform_within_border(this_->trans, p, border)) {
 366                                 if (!this_->zoomed)
 367                                         navit_set_attr(this_, &follow);
 368                                 navit_set_center_screen(this_, p);
 369                         }
 370                 }
 371                 if (this_->motion_timeout) {
 372                         event_remove_timeout(this_->motion_timeout);
 373                         this_->motion_timeout=NULL;
 374                 }
 375                 if (this_->moved) {
 376                         struct point pr;
 377                         pr.x=this_->w/2;
 378                         pr.y=this_->h;
 379 #if 0
 380                         update_transformation(this_->trans, &this_->pressed, p, &pr);
 381 #else
 382                         update_transformation(this_->trans, &this_->pressed, p, NULL);
 383 #endif
 384                         graphics_draw_drag(this_->gra, NULL);
 385                         graphics_overlay_disable(this_->gra, 0);
 386                         if (!this_->zoomed)
 387                                 navit_set_attr(this_, &follow);
 388                         navit_draw(this_);
 389                 } else
 390                         return 1;
 391         }
 392         return 0;
 393 }
 394
 395 static void
 396 navit_button(void *data, int pressed, int button, struct point *p)
 397 {
 398         struct navit *this=data;
 399         if (!this->ignore_graphics_events) {
 400                 if (! this->popup_callback)
 401                         this->popup_callback=callback_new_1(callback_cast(navit_popup), this);
 402                 navit_handle_button(this, pressed, button, p, this->popup_callback);
 403         }
 404 }
 405
 406
 407 static void
 408 navit_motion_timeout(struct navit *this_)
 409 {
 410         int dx, dy;
 411
 412         if (this_->drag_bitmap) {
 413                 struct point point;
 414                 point.x=(this_->current.x-this_->pressed.x);
 415                 point.y=(this_->current.y-this_->pressed.y);
 416                 if (graphics_draw_drag(this_->gra, &point)) {
 417                         graphics_overlay_disable(this_->gra, 1);
 418                         graphics_draw_mode(this_->gra, draw_mode_end);
 419                         this_->moved=1;
 420                         this_->motion_timeout=NULL;
 421                         return;
 422                 }
 423         }
 424         dx=(this_->current.x-this_->last.x);
 425         dy=(this_->current.y-this_->last.y);
 426         if (dx || dy) {
 427                 struct transformation *tr;
 428                 struct point pr;
 429                 this_->last=this_->current;
 430                 graphics_overlay_disable(this_->gra, 1);
 431                 tr=transform_dup(this_->trans);
 432                 pr.x=this_->w/2;
 433                 pr.y=this_->h;
 434 #if 0
 435                 update_transformation(tr, &this_->pressed, &this_->current, &pr);
 436 #else
 437                 update_transformation(tr, &this_->pressed, &this_->current, NULL);
 438 #endif
 439 #if 0
 440                 graphics_displaylist_move(this_->displaylist, dx, dy);
 441 #endif
 442                 graphics_draw_cancel(this_->gra, this_->displaylist);
 443                 graphics_displaylist_draw(this_->gra, this_->displaylist, tr, this_->layout_current, 0);
 444                 transform_destroy(tr);
 445                 this_->moved=1;
 446         }
 447         this_->motion_timeout=NULL;
 448         return;
 449 }
 450
 451 void
 452 navit_handle_motion(struct navit *this_, struct point *p)
 453 {
 454         int dx, dy;
 455
 456         if (this_->button_pressed && !this_->popped) {
 457                 dx=(p->x-this_->pressed.x);
 458                 dy=(p->y-this_->pressed.y);
 459                 if (dx < -8 || dx > 8 || dy < -8 || dy > 8) {
 460                         if (this_->button_timeout) {
 461                                 event_remove_timeout(this_->button_timeout);
 462                                 this_->button_timeout=NULL;
 463                         }
 464                         this_->current=*p;
 465                         if (! this_->motion_timeout_callback)
 466                                 this_->motion_timeout_callback=callback_new_1(callback_cast(navit_motion_timeout), this_);
 467                         if (! this_->motion_timeout)
 468                                 this_->motion_timeout=event_add_timeout(100, 0, this_->motion_timeout_callback);
 469                 }
 470         }
 471 }
 472
 473 static void
 474 navit_motion(void *data, struct point *p)
 475 {
 476         struct navit *this=data;
 477         if (!this->ignore_graphics_events)
 478                 navit_handle_motion(this, p);
 479 }
 480
 481 static void
 482 navit_scale(struct navit *this_, long scale, struct point *p, int draw)
 483 {
 484         struct coord c1, c2, *center;
 485         if (p)
 486                 transform_reverse(this_->trans, p, &c1);
 487         transform_set_scale(this_->trans, scale);
 488         if (p) {
 489                 transform_reverse(this_->trans, p, &c2);
 490                 center = transform_center(this_->trans);
 491                 center->x += c1.x - c2.x;
 492                 center->y += c1.y - c2.y;
 493         }
 494         if (draw)
 495                 navit_draw(this_);
 496 }
 497
 498 /**
 499  * @brief Automatically adjusts zoom level
 500  *
 501  * This function automatically adjusts the current
 502  * zoom level according to the current speed.
 503  *
 504  * @param this_ The navit struct
 505  * @param center The "immovable" point - i.e. the vehicles position if we're centering on the vehicle
 506  * @param speed The vehicles speed in meters per second
 507  * @param dir The direction into which the vehicle moves
 508  */
 509 static void
 510 navit_autozoom(struct navit *this_, struct coord *center, int speed, int draw)
 511 {
 512         struct point pc;
 513         int distance,w,h;
 514         double new_scale;
 515         long scale;
 516
 517         if (! this_->autozoom_active) {
 518                 return;
 519         }
 520
 521         distance = speed * this_->autozoom_secs;
 522
 523         transform_get_size(this_->trans, &w, &h);
 524         transform(this_->trans, transform_get_projection(this_->trans), center, &pc, 1, 0, 0, NULL);
 525         scale = transform_get_scale(this_->trans);
 526
 527         /* We make shure that the point we want to see is within a certain range
 528          * around the vehicle. The radius of this circle is the size of the
 529          * screen. This doesn't necessarily mean the point is visible because of
 530          * perspective etc. Quite rough, but should be enough. */
 531
 532         if (w > h) {
 533                 new_scale = (double)distance / h * 16;
 534         } else {
 535                 new_scale = (double)distance / w * 16;
 536         }
 537
 538         if (abs(new_scale - scale) < 2) {
 539                 return; // Smoothing
 540         }
 541
 542         if (new_scale >= this_->autozoom_min) {
 543                 navit_scale(this_, (long)new_scale, &pc, 0);
 544         } else {
 545                 if (scale != this_->autozoom_min) {
 546                         navit_scale(this_, this_->autozoom_min, &pc, 0);
 547                 }
 548         }
 549 }
 550
 551 /**
 552  * Change the current zoom level, zooming closer to the ground
 553  *
 554  * @param navit The navit instance
 555  * @param factor The zoom factor, usually 2
 556  * @param p The invariant point (if set to NULL, default to center)
 557  * @returns nothing
 558  */
 559 void
 560 navit_zoom_in(struct navit *this_, int factor, struct point *p)
 561 {
 562         long scale=transform_get_scale(this_->trans)/factor;
 563         if (scale < 1)
 564                 scale=1;
 565         navit_scale(this_, scale, p, 1);
 566 }
 567
 568 /**
 569  * Change the current zoom level
 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_out(struct navit *this_, int factor, struct point *p)
 578 {
 579         long scale=transform_get_scale(this_->trans)*factor;
 580         navit_scale(this_, scale, p, 1);
 581 }
 582
 583 static int
 584 navit_cmd_zoom_in(struct navit *this_)
 585 {
 586         struct point p;
 587         if (this_->vehicle && this_->vehicle->follow_curr == 1 && navit_get_cursor_pnt(this_, &p, NULL)) {
 588                 navit_zoom_in(this_, 2, &p);
 589                 this_->vehicle->follow_curr=this_->vehicle->follow;
 590         } else
 591                 navit_zoom_in(this_, 2, NULL);
 592         return 0;
 593 }
 594
 595 static int
 596 navit_cmd_zoom_out(struct navit *this_)
 597 {
 598         struct point p;
 599         if (this_->vehicle && this_->vehicle->follow_curr == 1 && navit_get_cursor_pnt(this_, &p, NULL)) {
 600                 navit_zoom_out(this_, 2, &p);
 601                 this_->vehicle->follow_curr=this_->vehicle->follow;
 602         } else
 603                 navit_zoom_out(this_, 2, NULL);
 604         return 0;
 605 }
 606
 607 static struct command_table commands[] = {
 608         {"zoom_in",command_cast(navit_cmd_zoom_in)},
 609         {"zoom_out",command_cast(navit_cmd_zoom_out)},
 610         {"zoom_to_route",command_cast(navit_cmd_zoom_to_route)},
 611         {"set_center_cursor",command_cast(navit_cmd_set_center_cursor)},
 612 };
 613
 614
 615 struct navit *
 616 navit_new(struct attr *parent, struct attr **attrs)
 617 {
 618         struct navit *this_=g_new0(struct navit, 1);
 619         struct pcoord center;
 620         struct coord co;
 621         struct coord_geo g;
 622         enum projection pro=projection_mg;
 623         int zoom = 256;
 624         g.lat=53.13;
 625         g.lng=11.70;
 626
 627         this_->self.type=attr_navit;
 628         this_->self.u.navit=this_;
 629         this_->attr_cbl=callback_list_new();
 630         main_add_navit(this_);
 631
 632         this_->bookmarks_hash=g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
 633
 634         this_->orientation=-1;
 635         this_->tracking_flag=1;
 636         this_->recentdest_count=10;
 637         this_->osd_configuration=-1;
 638
 639         this_->center_timeout = 10;
 640         this_->use_mousewheel = 1;
 641         this_->autozoom_secs = 10;
 642         this_->autozoom_min = 7;
 643         this_->autozoom_active = 0;
 644
 645         this_->trans = transform_new();
 646         transform_from_geo(pro, &g, &co);
 647         center.x=co.x;
 648         center.y=co.y;
 649         center.pro = pro;
 650
 651         transform_setup(this_->trans, &center, zoom, (this_->orientation != -1) ? this_->orientation : 0);
 652         for (;*attrs; attrs++) {
 653                 navit_set_attr_do(this_, *attrs, 1);
 654         }
 655         this_->displaylist=graphics_displaylist_new();
 656         command_add_table(this_->attr_cbl, commands, sizeof(commands)/sizeof(struct command_table), this_);
 657
 658         this_->messages = messagelist_new(attrs);
 659
 660         return this_;
 661 }
 662
 663 static int
 664 navit_set_gui(struct navit *this_, struct gui *gui)
 665 {
 666         if (this_->gui)
 667                 return 0;
 668         this_->gui=gui;
 669         if (gui_has_main_loop(this_->gui)) {
 670                 if (! main_loop_gui) {
 671                         main_loop_gui=this_->gui;
 672                 } else {
 673                         dbg(0,"gui with main loop already active, ignoring this instance");
 674                         return 0;
 675                 }
 676         }
 677         return 1;
 678 }
 679
 680 void
 681 navit_add_message(struct navit *this_, char *message)
 682 {
 683         message_new(this_->messages, message);
 684 }
 685
 686 struct message
 687 *navit_get_messages(struct navit *this_)
 688 {
 689         return message_get(this_->messages);
 690 }
 691
 692 static int
 693 navit_set_graphics(struct navit *this_, struct graphics *gra)
 694 {
 695         if (this_->gra)
 696                 return 0;
 697         this_->gra=gra;
 698         this_->resize_callback=callback_new_attr_1(callback_cast(navit_resize), attr_resize, this_);
 699         graphics_add_callback(gra, this_->resize_callback);
 700         this_->button_callback=callback_new_attr_1(callback_cast(navit_button), attr_button, this_);
 701         graphics_add_callback(gra, this_->button_callback);
 702         this_->motion_callback=callback_new_attr_1(callback_cast(navit_motion), attr_motion, this_);
 703         graphics_add_callback(gra, this_->motion_callback);
 704         return 1;
 705 }
 706
 707 struct graphics *
 708 navit_get_graphics(struct navit *this_)
 709 {
 710         return this_->gra;
 711 }
 712
 713 struct vehicleprofile *
 714 navit_get_vehicleprofile(struct navit *this_)
 715 {
 716         return this_->vehicleprofile;
 717 }
 718
 719 static void
 720 navit_projection_set(struct navit *this_, enum projection pro)
 721 {
 722         struct coord_geo g;
 723         struct coord *c;
 724
 725         c=transform_center(this_->trans);
 726         transform_to_geo(transform_get_projection(this_->trans), c, &g);
 727         transform_set_projection(this_->trans, pro);
 728         transform_from_geo(pro, &g, c);
 729         navit_draw(this_);
 730 }
 731
 732 /**
 733  * @param limit Limits the number of entries in the "backlog". Set to 0 for "infinite"
 734  */
 735 static void
 736 navit_append_coord(struct navit *this_, char *file, struct pcoord *c, const char *type, const char *description, GHashTable *h, int limit)
 737 {
 738         FILE *f;
 739         int offset=0;
 740         char *buffer;
 741         int ch,prev,lines=0;
 742         int numc,readc;
 743         int fd;
 744         const char *prostr;
 745
 746         f=fopen(file, "r");
 747         if (!f)
 748                 goto new_file;
 749         if (limit != 0) {
 750                 prev = '\n';
 751                 while ((ch = fgetc(f)) != EOF) {
 752                         if ((ch == '\n') && (prev != '\n')) {
 753                                 lines++;
 754                         }
 755                         prev = ch;
 756                 }
 757
 758                 if (prev != '\n') { // Last line did not end with a newline
 759                         lines++;
 760                 }
 761
 762                 fclose(f);
 763                 f = fopen(file, "r+");
 764                 fd = fileno(f);
 765                 while (lines >= limit) { // We have to "scroll up"
 766                         rewind(f);
 767                         numc = 0; // Counts how many bytes we have in our line to scroll up
 768                         while ((ch = fgetc(f)) != EOF) {
 769                                 numc++;
 770                                 if (ch == '\n') {
 771                                         break;
 772                                 }
 773                         }
 774
 775                         buffer=g_malloc(numc);
 776                         offset = numc; // Offset holds where we currently are
 777
 778                         do {
 779                                 fseek(f,offset,SEEK_SET);
 780                                 readc = fread(buffer,1,numc,f);
 781
 782                                 fseek(f,-(numc+readc),SEEK_CUR);
 783                                 fwrite(buffer,1,readc,f);
 784
 785                                 offset += readc;
 786                         } while (readc == numc);
 787
 788                         g_free(buffer);
 789                         fflush(f);
 790                         ftruncate(fd,(offset-numc));
 791 #ifdef HAVE_FSYNC
 792                         fsync(fd);
 793 #endif
 794
 795                         lines--;
 796                 }
 797                 fclose(f);
 798         }
 799
 800 new_file:
 801         f=fopen(file, "a");
 802         if (f) {
 803                 if (c) {
 804                         prostr = projection_to_name(c->pro,NULL);
 805                         fprintf(f,"%s%s%s0x%x %s0x%x type=%s label=\"%s\"\n",
 806                                  prostr, *prostr ? ":" : "",
 807                                  c->x >= 0 ? "":"-", c->x >= 0 ? c->x : -c->x,
 808                                  c->y >= 0 ? "":"-", c->y >= 0 ? c->y : -c->y,
 809                                  type, description);
 810                 } else
 811                         fprintf(f,"\n");
 812                 fclose(f);
 813         }
 814 }
 815
 816 /*
 817  * navit_get_user_data_directory
 818  *
 819  * returns the directory used to store user data files (center.txt,
 820  * destination.txt, bookmark.txt, ...)
 821  *
 822  * arg: gboolean create: create the directory if it does not exist
 823  */
 824 static char*
 825 navit_get_user_data_directory(gboolean create) {
 826         char *dir;
 827         dir = getenv("NAVIT_USER_DATADIR");
 828         if (create && !file_exists(dir)) {
 829                 dbg(0,"creating dir %s\n", dir);
 830                 if (file_mkdir(dir,0)) {
 831                         dbg(0,"failed creating dir %s\n", dir);
 832                         return NULL;
 833                 }
 834         }
 835
 836         return dir;
 837 }
 838
 839 /*
 840  * navit_get_destination_file
 841  *
 842  * returns the name of the file used to store destinations with its
 843  * full path
 844  *
 845  * arg: gboolean create: create the directory where the file is stored
 846  * if it does not exist
 847  */
 848 static char*
 849 navit_get_destination_file(gboolean create)
 850 {
 851         return g_strjoin(NULL, navit_get_user_data_directory(create), "/destination.txt", NULL);
 852 }
 853
 854 /*
 855  * navit_get_bookmark_file
 856  *
 857  * returns the name of the file used to store bookmarks with its
 858  * full path
 859  *
 860  * arg: gboolean create: create the directory where the file is stored
 861  * if it does not exist
 862  */
 863 static char*
 864 navit_get_bookmark_file(gboolean create)
 865 {
 866         return g_strjoin(NULL, navit_get_user_data_directory(create), "/bookmark.txt", NULL);
 867 }
 868
 869
 870 /*
 871  * navit_get_bookmark_file
 872  *
 873  * returns the name of the file used to store the center file  with its
 874  * full path
 875  *
 876  * arg: gboolean create: create the directory where the file is stored
 877  * if it does not exist
 878  */
 879 static char*
 880 navit_get_center_file(gboolean create)
 881 {
 882         return g_strjoin(NULL, navit_get_user_data_directory(create), "/center.txt", NULL);
 883 }
 884
 885 static void
 886 navit_set_center_from_file(struct navit *this_, char *file)
 887 {
 888         FILE *f;
 889         char *line = NULL;
 890
 891         size_t line_size = 0;
 892         enum projection pro;
 893         struct coord *center;
 894
 895         f = fopen(file, "r");
 896         if (! f)
 897                 return;
 898         getline(&line, &line_size, f);
 899         fclose(f);
 900         if (line) {
 901                 center = transform_center(this_->trans);
 902                 pro = transform_get_projection(this_->trans);
 903                 coord_parse(g_strchomp(line), pro, center);
 904                 free(line);
 905         }
 906         return;
 907 }
 908
 909 static void
 910 navit_write_center_to_file(struct navit *this_, char *file)
 911 {
 912         FILE *f;
 913         enum projection pro;
 914         struct coord *center;
 915
 916         f = fopen(file, "w+");
 917         if (f) {
 918                 center = transform_center(this_->trans);
 919                 pro = transform_get_projection(this_->trans);
 920                 coord_print(pro, center, f);
 921                 fclose(f);
 922         } else {
 923                 perror(file);
 924         }
 925         return;
 926 }
 927
 928
 929 /**
 930  * Start the route computing to a given set of coordinates
 931  *
 932  * @param navit The navit instance
 933  * @param c The coordinate to start routing to
 934  * @param description A label which allows the user to later identify this destination in the former destinations selection
 935  * @returns nothing
 936  */
 937 void
 938 navit_set_destination(struct navit *this_, struct pcoord *c, const char *description, int async)
 939 {
 940         if (c) {
 941                 this_->destination=*c;
 942                 this_->destination_valid=1;
 943         } else
 944                 this_->destination_valid=0;
 945         char *destination_file = navit_get_destination_file(TRUE);
 946         navit_append_coord(this_, destination_file, c, "former_destination", description, NULL, this_->recentdest_count);
 947         g_free(destination_file);
 948         callback_list_call_attr_0(this_->attr_cbl, attr_destination);
 949         if (this_->route) {
 950                 route_set_destination(this_->route, c, async);
 951
 952                 if (this_->ready == 3)
 953                         navit_draw(this_);
 954         }
 955 }
 956
 957 /**
 958  * @brief Checks if a route is calculated
 959  *
 960  * This function checks if a route is calculated.
 961  *
 962  * @param this_ The navit struct whose route should be checked.
 963  * @return True if the route is set, false otherwise.
 964  */
 965 int
 966 navit_check_route(struct navit *this_)
 967 {
 968         if (this_->route) {
 969                 return route_get_path_set(this_->route);
 970         }
 971
 972         return 0;
 973 }
 974
 975 /**
 976  * Record the given set of coordinates as a bookmark
 977  *
 978  * @param navit The navit instance
 979  * @param c The coordinate to store
 980  * @param description A label which allows the user to later identify this bookmark
 981  * @returns nothing
 982  */
 983 void
 984 navit_add_bookmark(struct navit *this_, struct pcoord *c, const char *description)
 985 {
 986         char *bookmark_file = navit_get_bookmark_file(TRUE);
 987         navit_append_coord(this_,bookmark_file, c, "bookmark", description, this_->bookmarks_hash,0);
 988         g_free(bookmark_file);
 989
 990         callback_list_call_attr_0(this_->attr_cbl, attr_bookmark_map);
 991 }
 992
 993 struct navit *global_navit;
 994
 995 static void
 996 navit_add_bookmarks_from_file(struct navit *this_)
 997 {
 998         char *bookmark_file = navit_get_bookmark_file(FALSE);
 999         struct attr parent={attr_navit, .u.navit=this_};
1000         struct attr type={attr_type, {"textfile"}}, data={attr_data, {bookmark_file}};
1001         struct attr *attrs[]={&type, &data, NULL};
1002
1003         this_->bookmark=map_new(&parent, attrs);
1004         g_free(bookmark_file);
1005 }
1006
1007 static int
1008 navit_former_destinations_active(struct navit *this_)
1009 {
1010         char *destination_file = navit_get_destination_file(FALSE);
1011         FILE *f;
1012         int active=0;
1013         char buffer[3];
1014         f=fopen(destination_file,"r");
1015         if (f) {
1016                 if(!fseek(f, -2, SEEK_END) && fread(buffer, 2, 1, f) == 1 && (buffer[0]!='\n' || buffer[1]!='\n'))
1017                         active=1;
1018                 fclose(f);
1019         }
1020         g_free(destination_file);
1021         return active;
1022 }
1023
1024 static void
1025 navit_add_former_destinations_from_file(struct navit *this_)
1026 {
1027         char *destination_file = navit_get_destination_file(FALSE);
1028         struct attr parent={attr_navit, .u.navit=this_};
1029         struct attr type={attr_type, {"textfile"}}, data={attr_data, {destination_file}};
1030         struct attr *attrs[]={&type, &data, NULL};
1031         struct map_rect *mr;
1032         struct item *item;
1033         int valid=0;
1034         struct coord c;
1035         struct pcoord pc;
1036
1037         this_->former_destination=map_new(&parent, attrs);
1038         g_free(destination_file);
1039         if (!this_->route || !navit_former_destinations_active(this_))
1040                 return;
1041         mr=map_rect_new(this_->former_destination, NULL);
1042         while ((item=map_rect_get_item(mr))) {
1043                 if (item->type == type_former_destination && item_coord_get(item, &c, 1))
1044                         valid=1;
1045         }
1046         map_rect_destroy(mr);
1047         pc.pro=map_projection(this_->former_destination);
1048         pc.x=c.x;
1049         pc.y=c.y;
1050         if (valid) {
1051                 route_set_destination(this_->route, &pc, 1);
1052                 this_->destination=pc;
1053                 this_->destination_valid=1;
1054         }
1055 }
1056
1057
1058 static void
1059 navit_textfile_debug_log(struct navit *this_, const char *fmt, ...)
1060 {
1061         va_list ap;
1062         char *str1,*str2;
1063         va_start(ap, fmt);
1064         if (this_->textfile_debug_log && this_->vehicle) {
1065                 str1=g_strdup_vprintf(fmt, ap);
1066                 str2=g_strdup_printf("0x%x 0x%x%s%s\n", this_->vehicle->coord.x, this_->vehicle->coord.y, strlen(str1) ? " " : "", str1);
1067                 log_write(this_->textfile_debug_log, str2, strlen(str2));
1068                 g_free(str2);
1069                 g_free(str1);
1070         }
1071         va_end(ap);
1072 }
1073
1074 int
1075 navit_speech_estimate(struct navit *this_, char *str)
1076 {
1077         return speech_estimate_duration(this_->speech, str);
1078 }
1079
1080 void
1081 navit_say(struct navit *this_, char *text)
1082 {
1083         speech_say(this_->speech, text);
1084 }
1085
1086 /**
1087  * @brief Toggles the navigation announcer for navit
1088  * @param this_ The navit object
1089  */
1090 void
1091 navit_announcer_toggle(struct navit *this_)
1092 {
1093     struct attr attr, speechattr;
1094
1095     // search for the speech attribute
1096     if(!navit_get_attr(this_, attr_speech, &speechattr, NULL))
1097         return;
1098     // find out if the corresponding attribute attr_active has been set
1099     if(speech_get_attr(speechattr.u.speech, attr_active, &attr, NULL)) {
1100         // flip it then...
1101         attr.u.num = !attr.u.num;
1102     } else {
1103         // otherwise disable it because voice is enabled by default
1104         attr.type = attr_active;
1105         attr.u.num = 0;
1106     }
1107
1108     // apply the new state
1109     if(!speech_set_attr(speechattr.u.speech, &attr))
1110         return;
1111
1112     // announce that the speech attribute has changed
1113     callback_list_call_attr_0(this_->attr_cbl, attr_speech);
1114 }
1115
1116 void
1117 navit_speak(struct navit *this_)
1118 {
1119         struct navigation *nav=this_->navigation;
1120         struct map *map=NULL;
1121         struct map_rect *mr=NULL;
1122         struct item *item;
1123         struct attr attr;
1124
1125     if (!speech_get_attr(this_->speech, attr_active, &attr, NULL))
1126         attr.u.num = 1;
1127     dbg(1, "this_.speech->active %i\n", attr.u.num);
1128     if(!attr.u.num)
1129         return;
1130
1131         if (nav)
1132                 map=navigation_get_map(nav);
1133         if (map)
1134                 mr=map_rect_new(map, NULL);
1135         if (mr) {
1136                 while ((item=map_rect_get_item(mr)) && (item->type == type_nav_position || item->type == type_nav_none));
1137                 if (item && item_attr_get(item, attr_navigation_speech, &attr)) {
1138                         speech_say(this_->speech, attr.u.str);
1139                         navit_add_message(this_, attr.u.str);
1140                         navit_textfile_debug_log(this_, "type=announcement label=\"%s\"", attr.u.str);
1141                 }
1142                 map_rect_destroy(mr);
1143         }
1144 }
1145
1146 static void
1147 navit_window_roadbook_update(struct navit *this_)
1148 {
1149         struct navigation *nav=this_->navigation;
1150         struct map *map=NULL;
1151         struct map_rect *mr=NULL;
1152         struct item *item;
1153         struct attr attr;
1154         struct param_list param[5];
1155         int secs;
1156
1157         dbg(1,"enter\n");
1158         datawindow_mode(this_->roadbook_window, 1);
1159         if (nav)
1160                 map=navigation_get_map(nav);
1161         if (map)
1162                 mr=map_rect_new(map, NULL);
1163         dbg(0,"nav=%p map=%p mr=%p\n", nav, map, mr);
1164         if (mr) {
1165                 dbg(0,"while loop\n");
1166                 while ((item=map_rect_get_item(mr))) {
1167                         dbg(0,"item=%p\n", item);
1168                         attr.u.str=NULL;
1169                         if (item->type != type_nav_position) {
1170                                 item_attr_get(item, attr_navigation_long, &attr);
1171                                 dbg(2, "Command='%s'\n", attr.u.str);
1172                                 param[0].value=g_strdup(attr.u.str);
1173                         } else
1174                                 param[0].value=_("Position");
1175                         param[0].name=_("Command");
1176
1177                         item_attr_get(item, attr_length, &attr);
1178                         dbg(2, "Length=%d\n", attr.u.num);
1179                         param[1].name=_("Length");
1180
1181                         if ( attr.u.num >= 2000 )
1182                         {
1183                                 param[1].value=g_strdup_printf("%5.1f %s",(float)attr.u.num / 1000, _("km") );
1184                         }
1185                         else
1186                         {
1187                                 param[1].value=g_strdup_printf("%7d %s",attr.u.num, _("m"));
1188                         }
1189
1190                         item_attr_get(item, attr_time, &attr);
1191                         dbg(2, "Time=%d\n", attr.u.num);
1192                         secs=attr.u.num/10;
1193                         param[2].name=_("Time");
1194                         if ( secs >= 3600 )
1195                         {
1196                                 param[2].value=g_strdup_printf("%d:%02d:%02d",secs / 60, ( secs / 60 ) % 60 , secs % 60);
1197                         }
1198                         else
1199                         {
1200                                 param[2].value=g_strdup_printf("%d:%02d",secs / 60, secs % 60);
1201                         }
1202
1203                         item_attr_get(item, attr_destination_length, &attr);
1204                         dbg(2, "Destlength=%d\n", attr.u.num);
1205                         param[3].name=_("Destination Length");
1206                         if ( attr.u.num >= 2000 )
1207                         {
1208                                 param[3].value=g_strdup_printf("%5.1f %s",(float)attr.u.num / 1000, _("km") );
1209                         }
1210                         else
1211                         {
1212                                 param[3].value=g_strdup_printf("%d %s",attr.u.num, _("m"));
1213                         }
1214
1215                         item_attr_get(item, attr_destination_time, &attr);
1216                         dbg(2, "Desttime=%d\n", attr.u.num);
1217                         secs=attr.u.num/10;
1218                         param[4].name=_("Destination Time");
1219                         if ( secs >= 3600 )
1220                         {
1221                                 param[4].value=g_strdup_printf("%d:%02d:%02d",secs / 3600, (secs / 60 ) % 60 , secs % 60);
1222                         }
1223                         else
1224                         {
1225                                 param[4].value=g_strdup_printf("%d:%02d",secs / 60, secs % 60);
1226                         }
1227                         datawindow_add(this_->roadbook_window, param, 5);
1228                 }
1229                 map_rect_destroy(mr);
1230         }
1231         datawindow_mode(this_->roadbook_window, 0);
1232 }
1233
1234 void
1235 navit_window_roadbook_destroy(struct navit *this_)
1236 {
1237         dbg(0, "enter\n");
1238         navigation_unregister_callback(this_->navigation, attr_navigation_long, this_->roadbook_callback);
1239         this_->roadbook_window=NULL;
1240         this_->roadbook_callback=NULL;
1241 }
1242 void
1243 navit_window_roadbook_new(struct navit *this_)
1244 {
1245         if (this_->roadbook_callback || this_->roadbook_window) {
1246                 return;
1247         }
1248
1249         this_->roadbook_callback=callback_new_1(callback_cast(navit_window_roadbook_update), this_);
1250         navigation_register_callback(this_->navigation, attr_navigation_long, this_->roadbook_callback);
1251         this_->roadbook_window=gui_datawindow_new(this_->gui, _("Roadbook"), NULL, callback_new_1(callback_cast(navit_window_roadbook_destroy), this_));
1252         navit_window_roadbook_update(this_);
1253 }
1254
1255 void
1256 navit_init(struct navit *this_)
1257 {
1258         struct mapset *ms;
1259         struct map *map;
1260
1261         dbg(2,"enter gui %p graphics %p\n",this_->gui,this_->gra);
1262         if (!this_->gui) {
1263                 dbg(0,"no gui\n");
1264                 navit_destroy(this_);
1265                 return;
1266         }
1267         if (!this_->gra) {
1268                 dbg(0,"no graphics\n");
1269                 navit_destroy(this_);
1270                 return;
1271         }
1272         dbg(2,"Connecting gui to graphics\n");
1273         if (gui_set_graphics(this_->gui, this_->gra)) {
1274                 struct attr attr_type_gui, attr_type_graphics;
1275                 gui_get_attr(this_->gui, attr_type, &attr_type_gui, NULL);
1276                 graphics_get_attr(this_->gra, attr_type, &attr_type_graphics, NULL);
1277                 dbg(0,"failed to connect graphics '%s' to gui '%s'\n", attr_type_graphics.u.str, attr_type_gui.u.str);
1278                 dbg(0," Please see http://wiki.navit-project.org/index.php/Failed_to_connect_graphics_to_gui\n");
1279                 dbg(0," for explanations and solutions\n");
1280
1281                 navit_destroy(this_);
1282                 return;
1283         }
1284         dbg(2,"Initializing graphics\n");
1285         graphics_init(this_->gra);
1286         dbg(2,"Setting Vehicle\n");
1287         navit_set_vehicle(this_, this_->vehicle);
1288         dbg(2,"Adding dynamic maps to mapset %p\n",this_->mapsets);
1289         if (this_->mapsets) {
1290                 ms=this_->mapsets->data;
1291                 if (this_->route) {
1292                         if ((map=route_get_map(this_->route)))
1293                                 mapset_add_attr(ms, &(struct attr){attr_map,.u.map=map});
1294                         if ((map=route_get_graph_map(this_->route))) {
1295                                 mapset_add_attr(ms, &(struct attr){attr_map,.u.map=map});
1296                                 map_set_attr(map, &(struct attr ){attr_active,.u.num=0});
1297                         }
1298                         route_set_mapset(this_->route, ms);
1299                         route_set_projection(this_->route, transform_get_projection(this_->trans));
1300                 }
1301                 if (this_->tracking) {
1302                         tracking_set_mapset(this_->tracking, ms);
1303                         if (this_->route)
1304                                 tracking_set_route(this_->tracking, this_->route);
1305                 }
1306                 if (this_->navigation) {
1307                         if ((map=navigation_get_map(this_->navigation))) {
1308                                 mapset_add_attr(ms, &(struct attr){attr_map,.u.map=map});
1309                                 map_set_attr(map, &(struct attr ){attr_active,.u.num=0});
1310                         }
1311                 }
1312                 if (this_->tracking) {
1313                         if ((map=tracking_get_map(this_->tracking))) {
1314                                 mapset_add_attr(ms, &(struct attr){attr_map,.u.map=map});
1315                                 map_set_attr(map, &(struct attr ){attr_active,.u.num=0});
1316                         }
1317                 }
1318                 navit_add_bookmarks_from_file(this_);
1319                 navit_add_former_destinations_from_file(this_);
1320         }
1321         if (this_->route) {
1322                 struct attr callback;
1323                 this_->route_cb=callback_new_attr_1(callback_cast(navit_redraw_route), attr_route_status, this_);
1324                 callback.type=attr_callback;
1325                 callback.u.callback=this_->route_cb;
1326                 route_add_attr(this_->route, &callback);
1327         }
1328         if (this_->navigation) {
1329                 if (this_->speech) {
1330                         this_->nav_speech_cb=callback_new_1(callback_cast(navit_speak), this_);
1331                         navigation_register_callback(this_->navigation, attr_navigation_speech, this_->nav_speech_cb);
1332                 }
1333                 if (this_->route)
1334                         navigation_set_route(this_->navigation, this_->route);
1335         }
1336         dbg(2,"Setting Center\n");
1337         char *center_file = navit_get_center_file(FALSE);
1338         navit_set_center_from_file(this_, center_file);
1339         g_free(center_file);
1340 #if 0
1341         if (this_->menubar) {
1342                 men=menu_add(this_->menubar, "Data", menu_type_submenu, NULL);
1343                 if (men) {
1344                         navit_add_menu_windows_items(this_, men);
1345                 }
1346         }
1347 #endif
1348         global_navit=this_;
1349 #if 0
1350         navit_window_roadbook_new(this_);
1351         navit_window_items_new(this_);
1352 #endif
1353         callback_list_call_attr_1(this_->attr_cbl, attr_navit, this_);
1354         this_->ready|=1;
1355
1356         messagelist_init(this_->messages);
1357
1358         dbg(2,"ready=%d\n",this_->ready);
1359         if (this_->ready == 3)
1360                 navit_draw(this_);
1361 }
1362
1363 void
1364 navit_zoom_to_route(struct navit *this_, int orientation)
1365 {
1366         struct map *map;
1367         struct map_rect *mr=NULL;
1368         struct item *item;
1369         struct coord c;
1370         struct coord_rect r;
1371         int count=0,scale=16;
1372         if (! this_->route)
1373                 return;
1374         dbg(1,"enter\n");
1375         map=route_get_map(this_->route);
1376         dbg(1,"map=%p\n",map);
1377         if (map)
1378                 mr=map_rect_new(map, NULL);
1379         dbg(1,"mr=%p\n",mr);
1380         if (mr) {
1381                 while ((item=map_rect_get_item(mr))) {
1382                         dbg(1,"item=%s\n", item_to_name(item->type));
1383                         while (item_coord_get(item, &c, 1)) {
1384                                 dbg(1,"coord\n");
1385                                 if (!count)
1386                                         r.lu=r.rl=c;
1387                                 else
1388                                         coord_rect_extend(&r, &c);
1389                                 count++;
1390                         }
1391                 }
1392         }
1393         if (! count)
1394                 return;
1395         c.x=(r.rl.x+r.lu.x)/2;
1396         c.y=(r.rl.y+r.lu.y)/2;
1397         dbg(1,"count=%d\n",count);
1398         if (orientation != -1)
1399                 transform_set_yaw(this_->trans, orientation);
1400         transform_set_center(this_->trans, &c);
1401         dbg(1,"%x,%x-%x,%x\n", r.rl.x,r.rl.y,r.lu.x,r.lu.y);
1402         while (scale < 1<<20) {
1403                 struct point p1,p2;
1404                 transform_set_scale(this_->trans, scale);
1405                 transform_setup_source_rect(this_->trans);
1406                 transform(this_->trans, transform_get_projection(this_->trans), &r.lu, &p1, 1, 0, 0, NULL);
1407                 transform(this_->trans, transform_get_projection(this_->trans), &r.rl, &p2, 1, 0, 0, NULL);
1408                 dbg(1,"%d,%d-%d,%d\n",p1.x,p1.y,p2.x,p2.y);
1409                 if (p1.x < 0 || p2.x < 0 || p1.x > this_->w || p2.x > this_->w ||
1410                     p1.y < 0 || p2.y < 0 || p1.y > this_->h || p2.y > this_->h)
1411                         scale*=2;
1412                 else
1413                         break;
1414
1415         }
1416         if (this_->ready == 3)
1417                 navit_draw_async(this_,0);
1418 }
1419
1420 static void
1421 navit_cmd_zoom_to_route(struct navit *this)
1422 {
1423         navit_zoom_to_route(this, 0);
1424 }
1425
1426 /**
1427  * Change the current zoom level
1428  *
1429  * @param navit The navit instance
1430  * @param center The point where to center the map, including its projection
1431  * @returns nothing
1432  */
1433 void
1434 navit_set_center(struct navit *this_, struct pcoord *center)
1435 {
1436         struct coord *c=transform_center(this_->trans);
1437         struct coord c1,c2;
1438         enum projection pro = transform_get_projection(this_->trans);
1439         if (pro != center->pro) {
1440                 c1.x = center->x;
1441                 c1.y = center->y;
1442                 transform_from_to(&c1, center->pro, &c2, pro);
1443         } else {
1444                 c2.x = center->x;
1445                 c2.y = center->y;
1446         }
1447         *c=c2;
1448         if (this_->ready == 3)
1449                 navit_draw(this_);
1450 }
1451
1452 static void
1453 navit_set_center_coord_screen(struct navit *this_, struct coord *c, struct point *p)
1454 {
1455         int width, height;
1456         struct point po;
1457         transform_set_center(this_->trans, c);
1458         transform_get_size(this_->trans, &width, &height);
1459         po.x=width/2;
1460         po.y=height/2;
1461         update_transformation(this_->trans, &po, p, NULL);
1462 }
1463
1464 static int
1465 navit_get_cursor_pnt(struct navit *this_, struct point *p, int *dir)
1466 {
1467         int width, height;
1468         struct navit_vehicle *nv=this_->vehicle;
1469         transform_get_size(this_->trans, &width, &height);
1470         if (this_->orientation == -1) {
1471                 p->x=50*width/100;
1472                 p->y=80*height/100;
1473                 if (dir)
1474                         *dir=nv->dir;
1475         } else {
1476                 int mdir;
1477                 if (this_->tracking && this_->tracking_flag) {
1478                         mdir = tracking_get_angle(this_->tracking) - this_->orientation;
1479                 } else {
1480                         mdir=nv->dir-this_->orientation;
1481                 }
1482
1483                 p->x=(50 - 30.*sin(M_PI*mdir/180.))*width/100;
1484                 p->y=(50 + 30.*cos(M_PI*mdir/180.))*height/100;
1485                 if (dir)
1486                         *dir=this_->orientation;
1487         }
1488         return 1;
1489 }
1490
1491 static void
1492 navit_set_center_cursor(struct navit *this_)
1493 {
1494         int dir;
1495         struct point pn;
1496         struct navit_vehicle *nv=this_->vehicle;
1497         navit_get_cursor_pnt(this_, &pn, &dir);
1498         transform_set_yaw(this_->trans, dir);
1499         navit_set_center_coord_screen(this_, &nv->coord, &pn);
1500         navit_autozoom(this_, &nv->coord, nv->speed, 0);
1501         if (this_->ready == 3)
1502                 navit_draw_async(this_, 1);
1503 }
1504
1505 static void
1506 navit_cmd_set_center_cursor(struct navit *this_)
1507 {
1508         navit_set_center_cursor(this_);
1509 }
1510
1511 void
1512 navit_set_center_screen(struct navit *this_, struct point *p)
1513 {
1514         struct coord c;
1515         struct pcoord pc;
1516         transform_reverse(this_->trans, p, &c);
1517         pc.x = c.x;
1518         pc.y = c.y;
1519         pc.pro = transform_get_projection(this_->trans);
1520         navit_set_center(this_, &pc);
1521 }
1522
1523 #if 0
1524                 switch((*attrs)->type) {
1525                 case attr_zoom:
1526                         zoom=(*attrs)->u.num;
1527                         break;
1528                 case attr_center:
1529                         g=*((*attrs)->u.coord_geo);
1530                         break;
1531 #endif
1532
1533 static int
1534 navit_set_attr_do(struct navit *this_, struct attr *attr, int init)
1535 {
1536         int dir=0, orient_old=0, attr_updated=0;
1537         struct coord co;
1538         long zoom;
1539
1540         switch (attr->type) {
1541         case attr_autozoom:
1542                 attr_updated=(this_->autozoom_secs != attr->u.num);
1543                 this_->autozoom_secs = attr->u.num;
1544                 break;
1545         case attr_autozoom_active:
1546                 attr_updated=(this_->autozoom_active != attr->u.num);
1547                 this_->autozoom_active = attr->u.num;
1548                 break;
1549         case attr_center:
1550                 transform_from_geo(transform_get_projection(this_->trans), attr->u.coord_geo, &co);
1551                 dbg(1,"0x%x,0x%x\n",co.x,co.y);
1552                 transform_set_center(this_->trans, &co);
1553                 break;
1554         case attr_drag_bitmap:
1555                 attr_updated=(this_->drag_bitmap != !!attr->u.num);
1556                 this_->drag_bitmap=!!attr->u.num;
1557                 break;
1558         case attr_follow:
1559                 if (!this_->vehicle)
1560                         return 0;
1561                 attr_updated=(this_->vehicle->follow_curr != attr->u.num);
1562                 this_->vehicle->follow_curr = attr->u.num;
1563                 break;
1564         case attr_layout:
1565                 if(this_->layout_current!=attr->u.layout) {
1566                         this_->layout_current=attr->u.layout;
1567                         graphics_font_destroy_all(this_->gra);
1568                         navit_draw(this_);
1569                         attr_updated=1;
1570                 }
1571                 break;
1572         case attr_orientation:
1573                 orient_old=this_->orientation;
1574                 this_->orientation=attr->u.num;
1575                 if (!init) {
1576                         if (this_->orientation != -1) {
1577                                 dir = this_->orientation;
1578                         } else {
1579                                 if (this_->vehicle) {
1580                                         dir = this_->vehicle->dir;
1581                                 }
1582                         }
1583                         transform_set_yaw(this_->trans, dir);
1584                         if (orient_old != this_->orientation) {
1585                                 if (this_->ready == 3)
1586                                         navit_draw(this_);
1587                                 attr_updated=1;
1588                         }
1589                 }
1590                 break;
1591         case attr_osd_configuration:
1592                 dbg(0,"setting osd_configuration to %d (was %d)\n", attr->u.num, this_->osd_configuration);
1593                 attr_updated=(this_->osd_configuration != attr->u.num);
1594                 this_->osd_configuration=attr->u.num;
1595                 break;
1596         case attr_pitch:
1597                 attr_updated=(this_->pitch != attr->u.num);
1598                 this_->pitch=attr->u.num;
1599                 transform_set_pitch(this_->trans, this_->pitch);
1600                 if (!init && attr_updated && this_->ready == 3)
1601                         navit_draw(this_);
1602                 break;
1603         case attr_projection:
1604                 if(this_->trans && transform_get_projection(this_->trans) != attr->u.projection) {
1605                         navit_projection_set(this_, attr->u.projection);
1606                         attr_updated=1;
1607                 }
1608                 break;
1609         case attr_recent_dest:
1610                 attr_updated=(this_->recentdest_count != attr->u.num);
1611                 this_->recentdest_count=attr->u.num;
1612                 break;
1613         case attr_speech:
1614                 if(this_->speech && this_->speech != attr->u.speech) {
1615                         attr_updated=1;
1616                         this_->speech = attr->u.speech;
1617                 }
1618                 break;
1619         case attr_timeout:
1620                 attr_updated=(this_->center_timeout != attr->u.num);
1621                 this_->center_timeout = attr->u.num;
1622                 break;
1623         case attr_tracking:
1624                 attr_updated=(this_->tracking_flag != !!attr->u.num);
1625                 this_->tracking_flag=!!attr->u.num;
1626                 break;
1627         case attr_use_mousewheel:
1628                 attr_updated=(this_->use_mousewheel != !!attr->u.num);
1629                 this_->use_mousewheel=!!attr->u.num;
1630                 break;
1631         case attr_vehicle:
1632                 if (!this_->vehicle || this_->vehicle->vehicle != attr->u.vehicle) {
1633                         GList *l;
1634                         struct navit_vehicle *nv;
1635                         struct attr active=(struct attr){attr_active,{(void *)0}};
1636                         l=this_->vehicles;
1637                         while(l) {
1638                                 nv=l->data;
1639                                 if (nv->vehicle == attr->u.vehicle) {
1640                                         if (this_->vehicle)
1641                                                 vehicle_set_attr(this_->vehicle->vehicle, &active, NULL);
1642                                         active.u.num=1;
1643                                         vehicle_set_attr(nv->vehicle, &active, NULL);
1644                                         navit_set_vehicle(this_, nv);
1645                                         attr_updated=1;
1646                                 }
1647                                 l=g_list_next(l);
1648                         }
1649                 }
1650                 break;
1651         case attr_zoom:
1652                 zoom=transform_get_scale(this_->trans);
1653                 attr_updated=(zoom != attr->u.num);
1654                 transform_set_scale(this_->trans, attr->u.num);
1655                 if (attr_updated && !init)
1656                         navit_draw(this_);
1657                 break;
1658         case attr_message:
1659                 navit_add_message(this_, attr->u.str);
1660                 break;
1661         default:
1662                 return 0;
1663         }
1664         if (attr_updated && !init) {
1665                 callback_list_call_attr_2(this_->attr_cbl, attr->type, this_, attr);
1666                 if (attr->type == attr_osd_configuration)
1667                         graphics_draw_mode(this_->gra, draw_mode_end);
1668         }
1669         return 1;
1670 }
1671
1672 int
1673 navit_set_attr(struct navit *this_, struct attr *attr)
1674 {
1675         return navit_set_attr_do(this_, attr, 0);
1676 }
1677
1678 int
1679 navit_get_attr(struct navit *this_, enum attr_type type, struct attr *attr, struct attr_iter *iter)
1680 {
1681         struct message *msg;
1682         int len,offset;
1683         int ret=1;
1684
1685         switch (type) {
1686         case attr_message:
1687                 msg = navit_get_messages(this_);
1688
1689                 if (!msg) {
1690                         return 0;
1691                 }
1692
1693                 len = 0;
1694                 while (msg) {
1695                         len += strlen(msg->text) + 1;
1696                         msg = msg->next;
1697                 }
1698                 attr->u.str = g_malloc(len + 1);
1699
1700                 msg = navit_get_messages(this_);
1701                 offset = 0;
1702                 while (msg) {
1703                         g_stpcpy((attr->u.str + offset), msg->text);
1704                         offset += strlen(msg->text);
1705                         attr->u.str[offset] = '\n';
1706                         offset++;
1707
1708                         msg = msg->next;
1709                 }
1710
1711                 attr->u.str[len] = '\0';
1712                 break;
1713         case attr_bookmark_map:
1714                 attr->u.map=this_->bookmark;
1715                 break;
1716         case attr_callback_list:
1717                 attr->u.callback_list=this_->attr_cbl;
1718                 break;
1719         case attr_destination:
1720                 if (! this_->destination_valid)
1721                         return 0;
1722                 attr->u.pcoord=&this_->destination;
1723                 break;
1724         case attr_displaylist:
1725                 attr->u.displaylist=this_->displaylist;
1726                 return (attr->u.displaylist != NULL);
1727         case attr_former_destination_map:
1728                 attr->u.map=this_->former_destination;
1729                 break;
1730         case attr_graphics:
1731                 attr->u.graphics=this_->gra;
1732                 ret=(attr->u.graphics != NULL);
1733                 break;
1734         case attr_gui:
1735                 attr->u.gui=this_->gui;
1736                 ret=(attr->u.gui != NULL);
1737                 break;
1738         case attr_layout:
1739                 if (iter) {
1740                         if (iter->u.list) {
1741                                 iter->u.list=g_list_next(iter->u.list);
1742                         } else {
1743                                 iter->u.list=this_->layouts;
1744                         }
1745                         if (!iter->u.list)
1746                                 return 0;
1747                         attr->u.layout=(struct layout *)iter->u.list->data;
1748                 } else {
1749                         attr->u.layout=this_->layout_current;
1750                 }
1751                 break;
1752         case attr_map:
1753                 if (iter && this_->mapsets) {
1754                         if (!iter->u.mapset_handle) {
1755                                 iter->u.mapset_handle=mapset_open((struct mapset *)this_->mapsets->data);
1756                         }
1757                         attr->u.map=mapset_next(iter->u.mapset_handle, 0);
1758                         if(!attr->u.map) {
1759                                 mapset_close(iter->u.mapset_handle);
1760                                 return 0;
1761                         }
1762                 } else {
1763                         return 0;
1764                 }
1765                 break;
1766         case attr_mapset:
1767                 attr->u.mapset=this_->mapsets->data;
1768                 return (attr->u.mapset != NULL);
1769         case attr_navigation:
1770                 attr->u.navigation=this_->navigation;
1771                 break;
1772         case attr_orientation:
1773                 attr->u.num=this_->orientation;
1774                 break;
1775         case attr_osd_configuration:
1776                 attr->u.num=this_->osd_configuration;
1777                 break;
1778         case attr_projection:
1779                 if(this_->trans) {
1780                         attr->u.num=transform_get_projection(this_->trans);
1781                 } else {
1782                         return 0;
1783                 }
1784                 break;
1785         case attr_route:
1786                 attr->u.route=this_->route;
1787                 break;
1788         case attr_speech:
1789                 attr->u.speech=this_->speech;
1790                 break;
1791         case attr_tracking:
1792                 attr->u.num=this_->tracking_flag;
1793                 break;
1794         case attr_transformation:
1795                 attr->u.transformation=this_->trans;
1796                 break;
1797         case attr_vehicle:
1798                 if(iter) {
1799                         if(iter->u.list) {
1800                                 iter->u.list=g_list_next(iter->u.list);
1801                         } else {
1802                                 iter->u.list=this_->vehicles;
1803                         }
1804                         if(!iter->u.list)
1805                                 return 0;
1806                         attr->u.vehicle=((struct navit_vehicle*)iter->u.list->data)->vehicle;
1807                 } else {
1808                         if(this_->vehicle) {
1809                                 attr->u.vehicle=this_->vehicle->vehicle;
1810                         } else {
1811                                 return 0;
1812                         }
1813                 }
1814                 break;
1815         case attr_zoom:
1816                 attr->u.num=transform_get_scale(this_->trans);
1817                 break;
1818         case attr_autozoom_active:
1819                 attr->u.num=this_->autozoom_active;
1820                 break;
1821         default:
1822                 return 0;
1823         }
1824         attr->type=type;
1825         return ret;
1826 }
1827
1828 static int
1829 navit_add_log(struct navit *this_, struct log *log)
1830 {
1831         struct attr type_attr;
1832         if (!log_get_attr(log, attr_type, &type_attr, NULL))
1833                 return 0;
1834         if (!strcmp(type_attr.u.str, "textfile_debug")) {
1835                 char *header = "type=track_tracked\n";
1836                 if (this_->textfile_debug_log)
1837                         return 0;
1838                 log_set_header(log, header, strlen(header));
1839                 this_->textfile_debug_log=log;
1840                 return 1;
1841         }
1842         return 0;
1843 }
1844
1845 int
1846 navit_add_attr(struct navit *this_, struct attr *attr)
1847 {
1848         int ret=1;
1849         switch (attr->type) {
1850         case attr_callback:
1851                 navit_add_callback(this_, attr->u.callback);
1852                 break;
1853         case attr_log:
1854                 ret=navit_add_log(this_, attr->u.log);
1855                 break;
1856         case attr_gui:
1857                 ret=navit_set_gui(this_, attr->u.gui);
1858                 break;
1859         case attr_graphics:
1860                 ret=navit_set_graphics(this_, attr->u.graphics);
1861                 break;
1862         case attr_layout:
1863                 this_->layouts = g_list_append(this_->layouts, attr->u.layout);
1864                 if(!this_->layout_current)
1865                         this_->layout_current=attr->u.layout;
1866                 break;
1867         case attr_route:
1868                 this_->route=attr->u.route;
1869                 break;
1870         case attr_mapset:
1871                 this_->mapsets = g_list_append(this_->mapsets, attr->u.mapset);
1872                 break;
1873         case attr_navigation:
1874                 this_->navigation=attr->u.navigation;
1875                 break;
1876         case attr_recent_dest:
1877                 this_->recentdest_count = attr->u.num;
1878                 break;
1879         case attr_speech:
1880                 this_->speech=attr->u.speech;
1881                 break;
1882         case attr_tracking:
1883                 this_->tracking=attr->u.tracking;
1884                 break;
1885         case attr_vehicle:
1886                 ret=navit_add_vehicle(this_, attr->u.vehicle);
1887                 break;
1888         case attr_vehicleprofile:
1889                 this_->vehicleprofiles=g_list_prepend(this_->vehicleprofiles, attr->u.vehicleprofile);
1890                 break;
1891         case attr_autozoom_min:
1892                 this_->autozoom_min = attr->u.num;
1893                 break;
1894         default:
1895                 return 0;
1896         }
1897         callback_list_call_attr_2(this_->attr_cbl, attr->type, this_, attr);
1898         return ret;
1899 }
1900
1901 int
1902 navit_remove_attr(struct navit *this_, struct attr *attr)
1903 {
1904         int ret=1;
1905         switch (attr->type) {
1906         case attr_callback:
1907                 navit_remove_callback(this_, attr->u.callback);
1908                 break;
1909         default:
1910                 return 0;
1911         }
1912         return ret;
1913 }
1914
1915 struct attr_iter *
1916 navit_attr_iter_new()
1917 {
1918         return g_new0(struct attr_iter, 1);
1919 }
1920
1921 void
1922 navit_attr_iter_destroy(struct attr_iter *iter)
1923 {
1924         g_free(iter);
1925 }
1926
1927 void
1928 navit_add_callback(struct navit *this_, struct callback *cb)
1929 {
1930         callback_list_add(this_->attr_cbl, cb);
1931 }
1932
1933 void
1934 navit_remove_callback(struct navit *this_, struct callback *cb)
1935 {
1936         callback_list_remove(this_->attr_cbl, cb);
1937 }
1938
1939 /**
1940  * Toggle the cursor update : refresh the map each time the cursor has moved (instead of only when it reaches a border)
1941  *
1942  * @param navit The navit instance
1943  * @returns nothing
1944  */
1945
1946 static void
1947 navit_vehicle_draw(struct navit *this_, struct navit_vehicle *nv, struct point *pnt)
1948 {
1949         struct point cursor_pnt;
1950         enum projection pro;
1951         struct attr cursor;
1952
1953         if (this_->blocked)
1954                 return;
1955         if (! vehicle_get_attr(nv->vehicle, attr_cursor, &cursor, NULL))
1956                 return;
1957         if (! cursor.u.cursor)
1958                 return;
1959         if (pnt)
1960                 cursor_pnt=*pnt;
1961         else {
1962                 pro=transform_get_projection(this_->trans);
1963                 transform(this_->trans, pro, &nv->coord, &cursor_pnt, 1, 0, 0, NULL);
1964         }
1965         cursor_draw(cursor.u.cursor, this_->gra, &cursor_pnt, pnt ? 0:1, nv->dir-transform_get_yaw(this_->trans), nv->speed);
1966 #if 0
1967         if (pnt)
1968                 pnt2=*pnt;
1969         else {
1970                 pro=transform_get_projection(this_->trans);
1971                 transform(this_->trans, pro, &nv->coord, &pnt2, 1);
1972         }
1973 #if 1
1974         cursor_draw(nv->cursor, &pnt2, nv->dir-transform_get_angle(this_->trans, 0), nv->speed > 2, pnt == NULL);
1975 #else
1976         cursor_draw(nv->cursor, &pnt2, nv->dir-transform_get_angle(this_->trans, 0), nv->speed > 2, 1);
1977 #endif
1978 #endif
1979 }
1980
1981 static void
1982 navit_vehicle_update(struct navit *this_, struct navit_vehicle *nv)
1983 {
1984         struct attr attr_valid, attr_dir, attr_speed, attr_pos;
1985         struct pcoord cursor_pc;
1986         struct point cursor_pnt, *pnt=&cursor_pnt;
1987         struct tracking *tracking=NULL;
1988         enum projection pro=transform_get_projection(this_->trans);
1989         int border=16;
1990         int (*get_attr)(void *, enum attr_type, struct attr *, struct attr_iter *);
1991         void *attr_object;
1992
1993         profile(0,NULL);
1994         if (this_->ready != 3) {
1995                 profile(0,"return 1\n");
1996                 return;
1997         }
1998         if (this_->vehicle == nv && this_->tracking_flag)
1999                 tracking=this_->tracking;
2000         if (tracking) {
2001                 tracking_update(tracking, nv->vehicle, this_->vehicleprofile, pro);
2002                 attr_object=tracking;
2003                 get_attr=(int (*)(void *, enum attr_type, struct attr *, struct attr_iter *))tracking_get_attr;
2004         } else {
2005                 attr_object=nv->vehicle;
2006                 get_attr=(int (*)(void *, enum attr_type, struct attr *, struct attr_iter *))vehicle_get_attr;
2007         }
2008         if (get_attr(attr_object, attr_position_valid, &attr_valid, NULL))
2009                 if (!attr_valid.u.num != attr_position_valid_invalid)
2010                         return;
2011         if (! get_attr(attr_object, attr_position_direction, &attr_dir, NULL) ||
2012             ! get_attr(attr_object, attr_position_speed, &attr_speed, NULL) ||
2013             ! get_attr(attr_object, attr_position_coord_geo, &attr_pos, NULL)) {
2014                 profile(0,"return 2\n");
2015                 return;
2016         }
2017         nv->dir=*attr_dir.u.numd;
2018         nv->speed=*attr_speed.u.numd;
2019         transform_from_geo(pro, attr_pos.u.coord_geo, &nv->coord);
2020         if (nv != this_->vehicle) {
2021                 navit_vehicle_draw(this_, nv, NULL);
2022                 profile(0,"return 3\n");
2023                 return;
2024         }
2025         cursor_pc.x = nv->coord.x;
2026         cursor_pc.y = nv->coord.y;
2027         cursor_pc.pro = pro;
2028         if (this_->route) {
2029                 if (tracking)
2030                         route_set_position_from_tracking(this_->route, tracking, pro);
2031                 else
2032                         route_set_position(this_->route, &cursor_pc);
2033         }
2034         callback_list_call_attr_0(this_->attr_cbl, attr_position);
2035         navit_textfile_debug_log(this_, "type=trackpoint_tracked");
2036         if (this_->gui && nv->speed > 2)
2037                 gui_disable_suspend(this_->gui);
2038
2039         transform(this_->trans, pro, &nv->coord, &cursor_pnt, 1, 0, 0, NULL);
2040         if (this_->button_pressed != 1 && nv->follow_curr <= nv->follow &&
2041                 (nv->follow_curr == 1 || !transform_within_border(this_->trans, &cursor_pnt, border)))
2042                 navit_set_center_cursor(this_);
2043         else
2044                 navit_vehicle_draw(this_, nv, pnt);
2045
2046         if (nv->follow_curr > 1)
2047                 nv->follow_curr--;
2048         else
2049                 nv->follow_curr=nv->follow;
2050         callback_list_call_attr_2(this_->attr_cbl, attr_position_coord_geo, this_, nv->vehicle);
2051
2052         /* Finally, if we reached our destination, stop navigation. */
2053         if (this_->route && route_destination_reached(this_->route)) {
2054                 navit_set_destination(this_, NULL, NULL, 0);
2055         }
2056         profile(0,"return 5\n");
2057 }
2058
2059 /**
2060  * Set the position of the vehicle
2061  *
2062  * @param navit The navit instance
2063  * @param c The coordinate to set as position
2064  * @returns nothing
2065  */
2066
2067 void
2068 navit_set_position(struct navit *this_, struct pcoord *c)
2069 {
2070         if (this_->route) {
2071                 route_set_position(this_->route, c);
2072                 callback_list_call_attr_0(this_->attr_cbl, attr_position);
2073         }
2074         if (this_->ready == 3)
2075                 navit_draw(this_);
2076 }
2077
2078 static int
2079 navit_set_vehicleprofile(struct navit *this_, char *name)
2080 {
2081         struct attr attr;
2082         GList *l;
2083         l=this_->vehicleprofiles;
2084         while (l) {
2085                 if (vehicleprofile_get_attr(l->data, attr_name, &attr, NULL)) {
2086                         if (!strcmp(attr.u.str, name)) {
2087                                 this_->vehicleprofile=l->data;
2088                                 if (this_->route)
2089                                         route_set_profile(this_->route, this_->vehicleprofile);
2090                                 return 1;
2091                         }
2092                 }
2093                 l=g_list_next(l);
2094         }
2095         return 0;
2096 }
2097
2098 static void
2099 navit_set_vehicle(struct navit *this_, struct navit_vehicle *nv)
2100 {
2101         struct attr attr;
2102         this_->vehicle=nv;
2103         if (nv && vehicle_get_attr(nv->vehicle, attr_profilename, &attr, NULL)) {
2104                 if (navit_set_vehicleprofile(this_, attr.u.str))
2105                         return;
2106         }
2107         navit_set_vehicleprofile(this_,"car");
2108 }
2109
2110 /**
2111  * Register a new vehicle
2112  *
2113  * @param navit The navit instance
2114  * @param v The vehicle instance
2115  * @returns 1 for success
2116  */
2117 static int
2118 navit_add_vehicle(struct navit *this_, struct vehicle *v)
2119 {
2120         struct navit_vehicle *nv=g_new0(struct navit_vehicle, 1);
2121         struct attr follow,color,active, color2, animate;
2122         nv->vehicle=v;
2123         nv->follow=0;
2124         nv->last.x = 0;
2125         nv->last.y = 0;
2126         nv->animate_cursor=0;
2127         if ((vehicle_get_attr(v, attr_follow, &follow, NULL)))
2128                 nv->follow=nv->follow=follow.u.num;
2129         if ((vehicle_get_attr(v, attr_color, &color, NULL)))
2130                 nv->c=*(color.u.color);
2131         if ((vehicle_get_attr(v, attr_color2, &color2, NULL)))
2132                 nv->c2=color2.u.color;
2133         else
2134                 nv->c2=NULL;
2135         nv->follow_curr=nv->follow;
2136         this_->vehicles=g_list_append(this_->vehicles, nv);
2137         if ((vehicle_get_attr(v, attr_active, &active, NULL)) && active.u.num)
2138                 navit_set_vehicle(this_, nv);
2139         if ((vehicle_get_attr(v, attr_animate, &animate, NULL)))
2140                 nv->animate_cursor=animate.u.num;
2141         nv->callback.type=attr_callback;
2142         nv->callback.u.callback=callback_new_2(callback_cast(navit_vehicle_update), this_, nv);
2143         vehicle_add_attr(nv->vehicle, &nv->callback);
2144         vehicle_set_attr(nv->vehicle, &this_->self, NULL);
2145         return 1;
2146 }
2147
2148
2149
2150
2151 struct gui *
2152 navit_get_gui(struct navit *this_)
2153 {
2154         return this_->gui;
2155 }
2156
2157 struct transformation *
2158 navit_get_trans(struct navit *this_)
2159 {
2160         return this_->trans;
2161 }
2162
2163 struct route *
2164 navit_get_route(struct navit *this_)
2165 {
2166         return this_->route;
2167 }
2168
2169 struct navigation *
2170 navit_get_navigation(struct navit *this_)
2171 {
2172         return this_->navigation;
2173 }
2174
2175 struct displaylist *
2176 navit_get_displaylist(struct navit *this_)
2177 {
2178         return this_->displaylist;
2179 }
2180
2181 int
2182 navit_block(struct navit *this_, int block)
2183 {
2184         if (block) {
2185                 this_->blocked |= 1;
2186                 if (graphics_draw_cancel(this_->gra, this_->displaylist))
2187                         this_->blocked |= 2;
2188                 return 0;
2189         }
2190         if (this_->blocked & 2) {
2191                 this_->blocked=0;
2192                 navit_draw(this_);
2193                 return 1;
2194         }
2195         this_->blocked=0;
2196         return 0;
2197 }
2198
2199 void
2200 navit_destroy(struct navit *this_)
2201 {
2202         /* TODO: destroy objects contained in this_ */
2203         if (this_->vehicle)
2204                 vehicle_destroy(this_->vehicle->vehicle);
2205         main_remove_navit(this_);
2206         char *center_file = navit_get_center_file(TRUE);
2207         navit_write_center_to_file(this_, center_file);
2208         g_free(center_file);
2209         callback_destroy(this_->nav_speech_cb);
2210         callback_destroy(this_->roadbook_callback);
2211         callback_destroy(this_->popup_callback);
2212         callback_destroy(this_->motion_timeout_callback);
2213         if(this_->gra)
2214           graphics_remove_callback(this_->gra, this_->resize_callback);
2215         callback_destroy(this_->resize_callback);
2216         if(this_->gra)
2217           graphics_remove_callback(this_->gra, this_->button_callback);
2218         callback_destroy(this_->button_callback);
2219         if(this_->gra)
2220           graphics_remove_callback(this_->gra, this_->motion_callback);
2221         callback_destroy(this_->motion_callback);
2222         g_free(this_);
2223 }
2224
2225 /** @} */