git.itanic.dy.fi Git - maemo-mapper/blob - src/main.c

   1 /*
   2  * Copyright (C) 2006, 2007 John Costigan.
   3  *
   4  * POI and GPS-Info code originally written by Cezary Jackiewicz.
   5  *
   6  * Default map data provided by http://www.openstreetmap.org/
   7  *
   8  * This file is part of Maemo Mapper.
   9  *
  10  * Maemo Mapper is free software: you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation, either version 3 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * Maemo Mapper is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with Maemo Mapper.  If not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #define _GNU_SOURCE
  25
  26 #ifdef HAVE_CONFIG_H
  27 #    include "config.h"
  28 #endif
  29
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <math.h>
  33 #include <dbus/dbus-glib.h>
  34 #include <locale.h>
  35
  36 #include <gconf/gconf-client.h>
  37 #include <device_symbols.h>
  38 #include <conicconnection.h>
  39 #include <conicconnectionevent.h>
  40
  41 #ifndef LEGACY
  42 #    include <hildon/hildon-program.h>
  43 #    include <hildon/hildon-banner.h>
  44 #else
  45 #    include <hildon-widgets/hildon-program.h>
  46 #    include <hildon-widgets/hildon-banner.h>
  47 #endif
  48
  49 #include "types.h"
  50 #include "data.h"
  51 #include "defines.h"
  52
  53 #include "cmenu.h"
  54 #include "dbus-ifc.h"
  55 #include "display.h"
  56 #include "gps.h"
  57 #include "gpx.h"
  58 #include "input.h"
  59 #include "main.h"
  60 #include "maps.h"
  61 #include "menu.h"
  62 #include "path.h"
  63 #include "poi.h"
  64 #include "settings.h"
  65 #include "util.h"
  66
  67 static void osso_cb_hw_state(osso_hw_state_t *state, gpointer data);
  68
  69 static HildonProgram *_program = NULL;
  70
  71 static ConIcConnection *_conic_conn = NULL;
  72 static gboolean _conic_is_connecting = FALSE;
  73 static gboolean _conic_conn_failed = FALSE;
  74 static GMutex *_conic_connection_mutex = NULL;
  75 static GCond *_conic_connection_cond = NULL;
  76
  77 /* Dynamically-sized in-memory map cache. */
  78 static size_t _map_cache_size = (32*1024*1024);
  79 static gboolean _map_cache_enabled = TRUE;
  80
  81 static void
  82 conic_conn_event(ConIcConnection *connection, ConIcConnectionEvent *event)
  83 {
  84     ConIcConnectionStatus status;
  85     printf("%s()\n", __PRETTY_FUNCTION__);
  86
  87     g_mutex_lock(_conic_connection_mutex);
  88
  89     status = con_ic_connection_event_get_status(event);
  90
  91     if((_conic_is_connected = (status == CON_IC_STATUS_CONNECTED)))
  92     {
  93         /* We're connected. */
  94         _conic_conn_failed = FALSE;
  95         if(_download_banner != NULL)
  96             gtk_widget_show(_download_banner);
  97     }
  98     else
  99     {
 100         /* We're not connected. */
 101         /* Mark as a failed connection, if we had been trying to connect. */
 102         _conic_conn_failed = _conic_is_connecting;
 103         if(_download_banner != NULL)
 104             gtk_widget_hide(_download_banner);
 105     }
 106
 107     _conic_is_connecting = FALSE; /* No longer trying to connect. */
 108     g_cond_broadcast(_conic_connection_cond);
 109     g_mutex_unlock(_conic_connection_mutex);
 110
 111     vprintf("%s(): return\n", __PRETTY_FUNCTION__);
 112 }
 113
 114 void
 115 conic_recommend_connected()
 116 {
 117     printf("%s()\n", __PRETTY_FUNCTION__);
 118
 119 #ifdef __arm__
 120     g_mutex_lock(_conic_connection_mutex);
 121     if(!_conic_is_connecting)
 122     {
 123         /* Fire up a connection request. */
 124         con_ic_connection_connect(_conic_conn, CON_IC_CONNECT_FLAG_NONE);
 125         _conic_is_connecting = TRUE;
 126     }
 127     g_mutex_unlock(_conic_connection_mutex);
 128 #endif
 129
 130     vprintf("%s(): return\n", __PRETTY_FUNCTION__);
 131 }
 132
 133 gboolean
 134 conic_ensure_connected()
 135 {
 136     printf("%s()\n", __PRETTY_FUNCTION__);
 137
 138 #ifdef __arm__
 139     while(_window && !_conic_is_connected)
 140     {
 141         g_mutex_lock(_conic_connection_mutex);
 142         /* If we're not connected, and if we're not connecting, and if we're
 143          * not in the wake of a connection failure, then try to connect. */
 144         if(!_conic_is_connected && !_conic_is_connecting &&!_conic_conn_failed)
 145         {
 146             /* Fire up a connection request. */
 147             con_ic_connection_connect(_conic_conn, CON_IC_CONNECT_FLAG_NONE);
 148             _conic_is_connecting = TRUE;
 149         }
 150         g_cond_wait(_conic_connection_cond, _conic_connection_mutex);
 151         g_mutex_unlock(_conic_connection_mutex);
 152     }
 153 #else
 154     _conic_is_connected = TRUE;
 155 #endif
 156
 157     vprintf("%s(): return %d\n", __PRETTY_FUNCTION__,
 158             _window && _conic_is_connected);
 159     return _window && _conic_is_connected;
 160 }
 161
 162 /**
 163  * Save state and destroy all non-UI elements created by this program in
 164  * preparation for exiting.
 165  */
 166 static void
 167 maemo_mapper_destroy()
 168 {
 169     printf("%s()\n", __PRETTY_FUNCTION__);
 170
 171     /* _program and widgets have already been destroyed. */
 172     _window = NULL;
 173
 174     gps_destroy(FALSE);
 175
 176     path_destroy();
 177
 178     settings_save();
 179
 180     poi_destroy();
 181
 182     g_mutex_lock(_mut_priority_mutex);
 183     _mut_priority_tree = g_tree_new((GCompareFunc)mut_priority_comparefunc);
 184     g_mutex_unlock(_mut_priority_mutex);
 185
 186     /* Allow remaining downloads to finish. */
 187     g_mutex_lock(_conic_connection_mutex);
 188     g_cond_broadcast(_conic_connection_cond);
 189     g_mutex_unlock(_conic_connection_mutex);
 190     g_thread_pool_free(_mut_thread_pool, TRUE, TRUE);
 191
 192     if(_curr_repo->db)
 193     {
 194 #ifdef MAPDB_SQLITE
 195         g_mutex_lock(_mapdb_mutex);
 196         sqlite3_close(_curr_repo->db);
 197         _curr_repo->db = NULL;
 198         g_mutex_unlock(_mapdb_mutex);
 199 #else
 200         g_mutex_lock(_mapdb_mutex);
 201         gdbm_close(_curr_repo->db);
 202         _curr_repo->db = NULL;
 203         g_mutex_unlock(_mapdb_mutex);
 204 #endif
 205     }
 206     map_cache_destroy();
 207
 208     gps_destroy(TRUE);
 209
 210     vprintf("%s(): return\n", __PRETTY_FUNCTION__);
 211 }
 212
 213 /**
 214  * Initialize everything required in preparation for calling gtk_main().
 215  */
 216 static void
 217 maemo_mapper_init(gint argc, gchar **argv)
 218 {
 219     GtkWidget *hbox, *label, *vbox;
 220     printf("%s()\n", __PRETTY_FUNCTION__);
 221
 222     /* Set enum-based constants. */
 223     UNITS_ENUM_TEXT[UNITS_KM] = _("km");
 224     UNITS_ENUM_TEXT[UNITS_MI] = _("mi.");
 225     UNITS_ENUM_TEXT[UNITS_NM] = _("n.m.");
 226
 227     ROTATE_DIR_ENUM_TEXT[ROTATE_DIR_UP] = _("Up");
 228     ROTATE_DIR_ENUM_TEXT[ROTATE_DIR_RIGHT] = _("Right");
 229     ROTATE_DIR_ENUM_TEXT[ROTATE_DIR_DOWN] = _("Down");
 230     ROTATE_DIR_ENUM_TEXT[ROTATE_DIR_LEFT] = _("Left");
 231
 232     UNBLANK_ENUM_TEXT[UNBLANK_WITH_GPS] = _("When Receiving Any GPS Data");
 233     UNBLANK_ENUM_TEXT[UNBLANK_WHEN_MOVING] = _("When Moving");
 234     UNBLANK_ENUM_TEXT[UNBLANK_FULLSCREEN] = _("When Moving (Full Screen Only)");
 235     UNBLANK_ENUM_TEXT[UNBLANK_WAYPOINT] = _("When Approaching a Waypoint");
 236     UNBLANK_ENUM_TEXT[UNBLANK_NEVER] = _("Never");
 237
 238     INFO_FONT_ENUM_TEXT[INFO_FONT_XXSMALL] = "xx-small";
 239     INFO_FONT_ENUM_TEXT[INFO_FONT_XSMALL] = "x-small";
 240     INFO_FONT_ENUM_TEXT[INFO_FONT_SMALL] = "small";
 241     INFO_FONT_ENUM_TEXT[INFO_FONT_MEDIUM] = "medium";
 242     INFO_FONT_ENUM_TEXT[INFO_FONT_LARGE] = "large";
 243     INFO_FONT_ENUM_TEXT[INFO_FONT_XLARGE] = "x-large";
 244     INFO_FONT_ENUM_TEXT[INFO_FONT_XXLARGE] = "xx-large";
 245
 246     CUSTOM_KEY_ICON[CUSTOM_KEY_UP] = HWK_BUTTON_UP;
 247     CUSTOM_KEY_ICON[CUSTOM_KEY_LEFT] = HWK_BUTTON_LEFT;
 248     CUSTOM_KEY_ICON[CUSTOM_KEY_DOWN] = HWK_BUTTON_DOWN;
 249     CUSTOM_KEY_ICON[CUSTOM_KEY_RIGHT] = HWK_BUTTON_RIGHT;
 250     CUSTOM_KEY_ICON[CUSTOM_KEY_SELECT] = HWK_BUTTON_SELECT;
 251     CUSTOM_KEY_ICON[CUSTOM_KEY_INCREASE] = HWK_BUTTON_INCREASE;
 252     CUSTOM_KEY_ICON[CUSTOM_KEY_DECREASE] = HWK_BUTTON_DECREASE;
 253     CUSTOM_KEY_ICON[CUSTOM_KEY_FULLSCREEN] = HWK_BUTTON_VIEW;
 254     CUSTOM_KEY_ICON[CUSTOM_KEY_ESC] = HWK_BUTTON_CANCEL;
 255
 256     CUSTOM_KEY_DEFAULT[CUSTOM_KEY_UP] = CUSTOM_ACTION_RESET_VIEW_ANGLE;
 257     CUSTOM_KEY_DEFAULT[CUSTOM_KEY_LEFT] =CUSTOM_ACTION_ROTATE_COUNTERCLOCKWISE;
 258     CUSTOM_KEY_DEFAULT[CUSTOM_KEY_DOWN] = CUSTOM_ACTION_TOGGLE_AUTOROTATE;
 259     CUSTOM_KEY_DEFAULT[CUSTOM_KEY_RIGHT] = CUSTOM_ACTION_ROTATE_CLOCKWISE;
 260     CUSTOM_KEY_DEFAULT[CUSTOM_KEY_SELECT] = CUSTOM_ACTION_TOGGLE_AUTOCENTER;
 261     CUSTOM_KEY_DEFAULT[CUSTOM_KEY_INCREASE] = CUSTOM_ACTION_ZOOM_IN;
 262     CUSTOM_KEY_DEFAULT[CUSTOM_KEY_DECREASE] = CUSTOM_ACTION_ZOOM_OUT;
 263     CUSTOM_KEY_DEFAULT[CUSTOM_KEY_FULLSCREEN]= CUSTOM_ACTION_TOGGLE_FULLSCREEN;
 264     CUSTOM_KEY_DEFAULT[CUSTOM_KEY_ESC] = CUSTOM_ACTION_TOGGLE_TRACKS;
 265
 266     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_PAN_NORTH] = _("Pan North");
 267     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_PAN_WEST] = _("Pan West");
 268     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_PAN_SOUTH] = _("Pan South");
 269     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_PAN_EAST] = _("Pan East");
 270     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_PAN_UP] = _("Pan Up");
 271     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_PAN_DOWN] = _("Pan Down");
 272     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_PAN_LEFT] = _("Pan Left");
 273     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_PAN_RIGHT] = _("Pan Right");
 274     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_RESET_VIEW_ANGLE]
 275         = _("Reset Viewing Angle");
 276     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_ROTATE_CLOCKWISE]
 277         = _("Rotate View Clockwise");
 278     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_ROTATE_COUNTERCLOCKWISE]
 279         = _("Rotate View Counter-Clockwise");
 280     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TOGGLE_AUTOCENTER]
 281         = _("Toggle Auto-Center");
 282     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TOGGLE_AUTOROTATE]
 283         = _("Toggle Auto-Rotate");
 284     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TOGGLE_FULLSCREEN]
 285         = _("Toggle Fullscreen");
 286     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_ZOOM_IN] = _("Zoom In");
 287     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_ZOOM_OUT] = _("Zoom Out");
 288     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TOGGLE_TRACKS] = _("Toggle Tracks");
 289     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TOGGLE_SCALE] = _("Toggle Scale");
 290     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TOGGLE_POI] = _("Toggle POIs");
 291     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_CHANGE_REPO]
 292         = _("Select Next Repository");
 293     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_ROUTE_DISTNEXT]
 294         = _("Show Distance to Next Waypoint");
 295     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_ROUTE_DISTLAST]
 296         = _("Show Distance to End of Route");
 297     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TRACK_BREAK]=_("Insert Track Break");
 298     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TRACK_CLEAR] = _("Clear Track");
 299     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TRACK_DISTLAST]
 300         = _("Show Distance from Last Break");
 301     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TRACK_DISTFIRST]
 302         = _("Show Distance from Beginning");
 303     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TOGGLE_GPS] = _("Toggle GPS");
 304     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TOGGLE_GPSINFO]=_("Toggle GPS Info");
 305     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_TOGGLE_SPEEDLIMIT]
 306         = _("Toggle Speed Limit");
 307     CUSTOM_ACTION_ENUM_TEXT[CUSTOM_ACTION_RESET_BLUETOOTH]
 308         = _("Reset Bluetooth");
 309
 310     DEG_FORMAT_ENUM_TEXT[DDPDDDDD] = "-dd.ddddd°";
 311     DEG_FORMAT_ENUM_TEXT[DD_MMPMMM] = "-dd°mm.mmm'";
 312     DEG_FORMAT_ENUM_TEXT[DD_MM_SSPS] = "-dd°mm'ss.s\"";
 313     DEG_FORMAT_ENUM_TEXT[DDPDDDDD_NSEW] = "dd.ddddd° S";
 314     DEG_FORMAT_ENUM_TEXT[DD_MMPMMM_NSEW] = "dd°mm.mmm' S";
 315     DEG_FORMAT_ENUM_TEXT[DD_MM_SSPS_NSEW] = "dd°mm'ss.s\" S";
 316     DEG_FORMAT_ENUM_TEXT[NSEW_DDPDDDDD] = "S dd.ddddd°";
 317     DEG_FORMAT_ENUM_TEXT[NSEW_DD_MMPMMM] = "S dd° mm.mmm'";
 318     DEG_FORMAT_ENUM_TEXT[NSEW_DD_MM_SSPS] = "S dd° mm' ss.s\"";
 319
 320     SPEED_LOCATION_ENUM_TEXT[SPEED_LOCATION_TOP_LEFT] = _("Top-Left");
 321     SPEED_LOCATION_ENUM_TEXT[SPEED_LOCATION_TOP_RIGHT] = _("Top-Right");
 322     SPEED_LOCATION_ENUM_TEXT[SPEED_LOCATION_BOTTOM_RIGHT] = _("Bottom-Right");
 323     SPEED_LOCATION_ENUM_TEXT[SPEED_LOCATION_BOTTOM_LEFT] = _("Bottom-Left");
 324
 325     GPS_RCVR_ENUM_TEXT[GPS_RCVR_BT] = _("Bluetooth");
 326     GPS_RCVR_ENUM_TEXT[GPS_RCVR_GPSD] = _("GPSD");
 327     GPS_RCVR_ENUM_TEXT[GPS_RCVR_FILE] = _("File");
 328
 329     /* Set up track array (must be done before config). */
 330     memset(&_track, 0, sizeof(_track));
 331     memset(&_route, 0, sizeof(_route));
 332     MACRO_PATH_INIT(_track);
 333     MACRO_PATH_INIT(_route);
 334
 335     _mapdb_mutex = g_mutex_new();
 336     _mut_priority_mutex = g_mutex_new();
 337     _mouse_mutex = g_mutex_new();
 338
 339     _conic_connection_mutex = g_mutex_new();
 340     _conic_connection_cond = g_cond_new();
 341
 342     settings_init();
 343     map_cache_init(_map_cache_size);
 344
 345     /* Initialize _program. */
 346     _program = HILDON_PROGRAM(hildon_program_get_instance());
 347     g_set_application_name("Maemo Mapper");
 348
 349     /* Initialize _window. */
 350     _window = GTK_WIDGET(hildon_window_new());
 351     hildon_program_add_window(_program, HILDON_WINDOW(_window));
 352
 353     /* Lets go fullscreen if so requested in saved config */
 354     if (_fullscreen) {
 355       gtk_window_fullscreen(GTK_WINDOW(_window));
 356     }
 357
 358     /* Create and add widgets and supporting data. */
 359     hbox = gtk_hbox_new(FALSE, 0);
 360     gtk_container_add(GTK_CONTAINER(_window), hbox);
 361
 362     _gps_widget = gtk_frame_new("GPS Info");
 363     gtk_container_add(GTK_CONTAINER(_gps_widget),
 364             vbox = gtk_vbox_new(FALSE, 0));
 365     gtk_widget_set_size_request(GTK_WIDGET(_gps_widget), 180, 0);
 366     gtk_box_pack_start(GTK_BOX(hbox), _gps_widget, FALSE, TRUE, 0);
 367
 368     label = gtk_label_new(" ");
 369     gtk_widget_set_size_request(GTK_WIDGET(label), -1, 10);
 370     gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, TRUE, 0);
 371
 372     _text_lat = gtk_label_new(" --- ");
 373     gtk_widget_set_size_request(GTK_WIDGET(_text_lat), -1, 30);
 374     gtk_box_pack_start(GTK_BOX(vbox), _text_lat, FALSE, TRUE, 0);
 375
 376     _text_lon = gtk_label_new(" --- ");
 377     gtk_widget_set_size_request(GTK_WIDGET(_text_lon), -1, 30);
 378     gtk_box_pack_start(GTK_BOX(vbox), _text_lon, FALSE, TRUE, 0);
 379
 380     _text_speed = gtk_label_new(" --- ");
 381     gtk_widget_set_size_request(GTK_WIDGET(_text_speed), -1, 30);
 382     gtk_box_pack_start(GTK_BOX(vbox), _text_speed, FALSE, TRUE, 0);
 383
 384     _text_alt = gtk_label_new(" --- ");
 385     gtk_widget_set_size_request(GTK_WIDGET(_text_alt), -1, 30);
 386     gtk_box_pack_start(GTK_BOX(vbox), _text_alt, FALSE, TRUE, 0);
 387
 388     label = gtk_label_new(" ");
 389     gtk_widget_set_size_request(GTK_WIDGET(label), -1, 10);
 390     gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, TRUE, 0);
 391
 392     _sat_panel = gtk_drawing_area_new ();
 393     gtk_widget_set_size_request (_sat_panel, -1, 100);
 394     gtk_box_pack_start(GTK_BOX(vbox), _sat_panel, TRUE, TRUE, 0);
 395
 396     label = gtk_label_new(" ");
 397     gtk_widget_set_size_request(GTK_WIDGET(label), -1, 10);
 398     gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, TRUE, 0);
 399
 400     _text_time = gtk_label_new("--:--:--");
 401     gtk_widget_set_size_request(GTK_WIDGET(_text_time), -1, 30);
 402     gtk_box_pack_start(GTK_BOX(vbox), _text_time, FALSE, TRUE, 0);
 403
 404     _heading_panel = gtk_drawing_area_new ();
 405     gtk_widget_set_size_request (_heading_panel, -1, 100);
 406     gtk_box_pack_start(GTK_BOX(vbox), _heading_panel, TRUE, TRUE, 0);
 407
 408     _map_widget = gtk_drawing_area_new();
 409
 410     gtk_box_pack_start(GTK_BOX(hbox), _map_widget, TRUE, TRUE, 0);
 411
 412     gtk_widget_show_all(hbox);
 413     gps_show_info(); /* hides info, if necessary. */
 414
 415     gtk_widget_realize(_map_widget);
 416
 417     /* Tweak the foreground and background colors a little bit... */
 418     {
 419         GdkColor color;
 420         GdkGCValues values;
 421         GdkColormap *colormap = gtk_widget_get_colormap(_map_widget);
 422
 423         gdk_gc_get_values(
 424                 _map_widget->style->fg_gc[GTK_STATE_NORMAL],
 425                 &values);
 426         gdk_colormap_query_color(colormap, values.foreground.pixel, &color);
 427         gtk_widget_modify_fg(_map_widget, GTK_STATE_ACTIVE, &color);
 428
 429         gdk_gc_get_values(
 430                 _map_widget->style->bg_gc[GTK_STATE_NORMAL],
 431                 &values);
 432         gdk_colormap_query_color(colormap, values.foreground.pixel, &color);
 433         gtk_widget_modify_bg(_map_widget, GTK_STATE_ACTIVE, &color);
 434
 435         /* Use a black background for _map_widget, since missing tiles are
 436          * also drawn with a black background. */
 437         color.red = 0; color.green = 0; color.blue = 0;
 438         gtk_widget_modify_bg(_map_widget,
 439                 GTK_STATE_NORMAL, &color);
 440     }
 441
 442     _map_pixmap = gdk_pixmap_new(_map_widget->window, 1, 1, -1);
 443     /* -1: use bit depth of widget->window. */
 444
 445     _map_pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 1, 1);
 446
 447     _mut_exists_table = g_hash_table_new(
 448             (GHashFunc)mut_exists_hashfunc, (GEqualFunc)mut_exists_equalfunc);
 449     _mut_priority_tree = g_tree_new((GCompareFunc)mut_priority_comparefunc);
 450
 451     _mut_thread_pool = g_thread_pool_new(
 452             (GFunc)thread_proc_mut, NULL, NUM_DOWNLOAD_THREADS, FALSE, NULL);
 453     _mrt_thread_pool = g_thread_pool_new(
 454             (GFunc)thread_render_map, NULL, 1, FALSE, NULL);
 455
 456     /* Connect signals. */
 457     g_signal_connect(G_OBJECT(_window), "destroy",
 458             G_CALLBACK(gtk_main_quit), NULL);
 459
 460     memset(&_autoroute_data, 0, sizeof(_autoroute_data));
 461
 462     latlon2unit(_gps.lat, _gps.lon, _pos.unitx, _pos.unity);
 463
 464     /* Initialize our line styles. */
 465     update_gcs();
 466
 467     menu_init();
 468     cmenu_init();
 469     path_init();
 470     gps_init();
 471     input_init();
 472     poi_db_connect();
 473     display_init();
 474     dbus_ifc_init();
 475
 476     /* If present, attempt to load the file specified on the command line. */
 477     if(argc > 1)
 478     {
 479         GnomeVFSResult vfs_result;
 480         gint size;
 481         gchar *buffer;
 482         gchar *file_uri;
 483
 484         /* Get the selected filename. */
 485         file_uri = gnome_vfs_make_uri_from_shell_arg(argv[1]);
 486
 487         if(GNOME_VFS_OK != (vfs_result = gnome_vfs_read_entire_file(
 488                         file_uri, &size, &buffer)))
 489         {
 490             gchar buffer[BUFFER_SIZE];
 491             snprintf(buffer, sizeof(buffer),
 492                     "%s:\n%s", _("Failed to open file for reading"),
 493                     gnome_vfs_result_to_string(vfs_result));
 494             popup_error(_window, buffer);
 495         }
 496         else
 497         {
 498             if(gpx_path_parse(&_route, buffer, size, 0))
 499             {
 500                 path_save_route_to_db();
 501                 MACRO_BANNER_SHOW_INFO(_window, _("Route Opened"));
 502             }
 503             else
 504                 popup_error(_window, _("Error parsing GPX file."));
 505             g_free(buffer);
 506         }
 507         g_free(file_uri);
 508     }
 509
 510     /* If we have a route, calculate the next point. */
 511     route_find_nearest_point();
 512
 513     _conic_conn = con_ic_connection_new();
 514     g_object_set(_conic_conn, "automatic-connection-events", TRUE, NULL);
 515     g_signal_connect(G_OBJECT(_conic_conn), "connection-event",
 516             G_CALLBACK(conic_conn_event), NULL);
 517
 518     g_idle_add((GSourceFunc)window_present, NULL);
 519
 520
 521     osso_hw_set_event_cb(_osso, NULL, osso_cb_hw_state, NULL);
 522
 523     vprintf("%s(): return\n", __PRETTY_FUNCTION__);
 524 }
 525
 526 static gboolean
 527 osso_cb_hw_state_idle(osso_hw_state_t *state)
 528 {
 529     static gboolean _must_save_data = FALSE;
 530     printf("%s(inact=%d, save=%d, shut=%d, memlow=%d, state=%d)\n",
 531             __PRETTY_FUNCTION__, state->system_inactivity_ind,
 532             state->save_unsaved_data_ind, state->shutdown_ind,
 533             state->memory_low_ind, state->sig_device_mode_ind);
 534
 535     if(state->shutdown_ind)
 536     {
 537         maemo_mapper_destroy();
 538         exit(1);
 539     }
 540
 541     if(state->save_unsaved_data_ind)
 542     {
 543         settings_save();
 544         _must_save_data = TRUE;
 545     }
 546
 547     if(state->memory_low_ind)
 548     {
 549         // Disable the map cache and set the next max cache size to
 550         // slightly less than the current cache size.
 551         _map_cache_size = map_cache_resize(0) * 0.8;
 552         _map_cache_enabled = FALSE;
 553     }
 554     else
 555     {
 556         if(!_map_cache_enabled)
 557         {
 558             // Restore the map cache.
 559             map_cache_resize(_map_cache_size);
 560             _map_cache_enabled = TRUE;
 561         }
 562     }
 563
 564     g_free(state);
 565
 566     vprintf("%s(): return\n", __PRETTY_FUNCTION__);
 567     return FALSE;
 568 }
 569
 570 static void
 571 osso_cb_hw_state(osso_hw_state_t *state, gpointer data)
 572 {
 573     printf("%s()\n", __PRETTY_FUNCTION__);
 574     osso_hw_state_t *state_copy = g_new(osso_hw_state_t, 1);
 575     memcpy(state_copy, state, sizeof(osso_hw_state_t));
 576     g_idle_add((GSourceFunc)osso_cb_hw_state_idle, state_copy);
 577     vprintf("%s(): return\n", __PRETTY_FUNCTION__);
 578 }
 579
 580 gint
 581 main(gint argc, gchar *argv[])
 582 {
 583     printf("%s()\n", __PRETTY_FUNCTION__);
 584
 585     /* Initialize localization. */
 586     setlocale(LC_ALL, "");
 587     bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
 588     bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
 589     textdomain(GETTEXT_PACKAGE);
 590
 591     g_thread_init(NULL);
 592
 593     /* Initialize _osso. */
 594     _osso = osso_initialize("com.gnuite.maemo_mapper", VERSION, TRUE, NULL);
 595     if(!_osso)
 596     {
 597         g_printerr("osso_initialize failed.\n");
 598         return 1;
 599     }
 600
 601     gtk_init(&argc, &argv);
 602
 603     /* Init gconf. */
 604     g_type_init();
 605     gconf_init(argc, argv, NULL);
 606
 607     /* Init Gnome-VFS. */
 608     gnome_vfs_init();
 609
 610 #ifdef DEBUG
 611     /* This is just some helpful DBUS testing code. */
 612     if(argc >= 3)
 613     {
 614         /* Try to set the center to a new lat/lon. */
 615         GError *error = NULL;
 616         gchar *error_check;
 617         gdouble lat, lon;
 618         DBusGConnection *bus;
 619         DBusGProxy *proxy;
 620
 621         bus = dbus_g_bus_get(DBUS_BUS_SESSION, &error);
 622         if(!bus || error)
 623         {
 624             g_printerr("Error: %s\n", error->message);
 625             return -1;
 626         }
 627
 628         proxy = dbus_g_proxy_new_for_name(bus,
 629                         MM_DBUS_SERVICE, MM_DBUS_PATH, MM_DBUS_INTERFACE);
 630
 631         lat = g_ascii_strtod((argv[1]), &error_check);
 632         if(error_check == argv[1])
 633         {
 634             g_printerr("Failed to parse string as float: %s\n", argv[1]);
 635             return 1;
 636         }
 637
 638         lon = g_ascii_strtod((argv[2]), &error_check);
 639         if(error_check == argv[2])
 640         {
 641             g_printerr("Failed to parse string as float: %s\n", argv[2]);
 642             return 2;
 643         }
 644
 645         error = NULL;
 646         if(argc >= 4)
 647         {
 648             /* We are specifying a zoom. */
 649             gint zoom;
 650
 651             zoom = g_ascii_strtod((argv[3]), &error_check);
 652             if(error_check == argv[3])
 653             {
 654                 g_printerr("Failed to parse string as integer: %s\n", argv[3]);
 655                 return 3;
 656             }
 657             if(!dbus_g_proxy_call(proxy, MM_DBUS_METHOD_SET_VIEW_POSITION,
 658                         &error,
 659                         G_TYPE_DOUBLE, lat, G_TYPE_DOUBLE, lon,
 660                         G_TYPE_INT, zoom, G_TYPE_INVALID,
 661                         G_TYPE_INVALID)
 662                     || error)
 663             {
 664                 g_printerr("Error: %s\n", error->message);
 665                 return 4;
 666             }
 667         }
 668         else
 669         {
 670             /* Not specifying a zoom. */
 671             if(!dbus_g_proxy_call(proxy, MM_DBUS_METHOD_SET_VIEW_POSITION,
 672                         &error,
 673                         G_TYPE_DOUBLE, lat, G_TYPE_DOUBLE, lon, G_TYPE_INVALID,
 674                         G_TYPE_INVALID)
 675                     || error)
 676             {
 677                 g_printerr("Error: %s\n", error->message);
 678                 return -2;
 679             }
 680         }
 681
 682         g_object_unref(proxy);
 683         dbus_g_connection_unref(bus);
 684
 685         return 0;
 686     }
 687 #endif
 688
 689     maemo_mapper_init(argc, argv);
 690
 691     gtk_main();
 692
 693     maemo_mapper_destroy();
 694
 695     osso_deinitialize(_osso);
 696
 697     vprintf("%s(): return\n", __PRETTY_FUNCTION__);
 698     exit(0);
 699 }
 700