err.no Git - mapper/blob - src/map.c

   1 /*
   2  * This file is part of mapper
   3  *
   4  * Copyright (C) 2007 Kaj-Michael Lang
   5  * Copyright (C) 2006-2007 John Costigan.
   6  *
   7  * POI and GPS-Info code originally written by Cezary Jackiewicz.
   8  *
   9  * Default map data provided by http://www.openstreetmap.org/
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License along
  22  * with this program; if not, write to the Free Software Foundation, Inc.,
  23  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24  */
  25
  26 #include <config.h>
  27
  28 #include <unistd.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <strings.h>
  32 #include <stddef.h>
  33 #include <math.h>
  34 #include <errno.h>
  35 #include <sys/wait.h>
  36 #include <glib/gstdio.h>
  37 #include <gtk/gtk.h>
  38 #include <fcntl.h>
  39 #include <libintl.h>
  40 #include <locale.h>
  41
  42 #include "hildon-mapper.h"
  43
  44 #include "utils.h"
  45 #include "map.h"
  46 #include "osm.h"
  47 #include "db.h"
  48 #include "osm-db.h"
  49 #include "poi.h"
  50 #include "route.h"
  51 #include "track.h"
  52 #include "gps.h"
  53 #include "mapper-types.h"
  54 #include "ui-common.h"
  55 #include "settings.h"
  56 #include "latlon.h"
  57 #include "gpx.h"
  58 #include "speak.h"
  59 #include "map-poi.h"
  60 #include "map-download.h"
  61 #include "announcements.h"
  62 #include "gtkcompass.h"
  63 #include "dialogs.h"
  64 #include "image-cache.h"
  65
  66 #define DEBUG_MAP_TIME 1
  67
  68 #define MAP_THUMB_MARGIN_X (100)
  69 #define MAP_THUMB_MARGIN_Y (75)
  70
  71 /* Initial size */
  72 #define BUF_WIDTH_TILES (4)
  73 #define BUF_HEIGHT_TILES (3)
  74 #define BUF_WIDTH_PIXELS (1024)
  75 #define BUF_HEIGHT_PIXELS (768)
  76
  77 static guint buf_width_tiles=BUF_WIDTH_TILES;
  78 static guint buf_height_tiles=BUF_HEIGHT_TILES;
  79 static guint buf_width_pixels=BUF_WIDTH_PIXELS;
  80 static guint buf_height_pixels=BUF_HEIGHT_PIXELS;
  81
  82 #ifdef WITH_GL
  83 #include <GL/gl.h>
  84 #include <gtk/gtkgl.h>
  85 GdkGLConfig* map_gl_config=NULL;
  86 #endif
  87 gboolean map_gl=FALSE;
  88
  89 #ifdef WITH_CAIRO
  90 cairo_t *ct_pixmap;
  91 #endif
  92
  93 /** The backing pixmap of map_widget. */
  94 static GdkPixmap *map_pixmap;
  95
  96 /* Tile cache, this might need some adjustment */
  97 #define MAP_CACHE_MAX (64)
  98 static ImageCache *map_ic;
  99
 100 /** The "base tile" is the upper-left tile in the pixmap. */
 101 guint _base_tilex = -5;
 102 guint _base_tiley = -5;
 103
 104 static guint map_max_zoom=MAX_ZOOM;
 105 guint _zoom = 3;                /* zoom level, from 0 to MAX_ZOOM. */
 106
 107 Point _min_center = { -1, -1 };
 108 Point _max_center = { -1, -1 };
 109 Point _focus = { -1, -1 };
 110 /* current center location, X. */
 111 Point _center = { -1, -1 };
 112
 113 CenterMode _center_mode = CENTER_LEAD;
 114
 115 /* Drag */
 116 static guint press[2] = { 0, 0 };
 117 static guint release[2] = { 0, 0 };
 118 static guint before[2] = { 0, 0 };
 119 static guint map_drag_id = 0;
 120 static gboolean map_dragged;
 121
 122 /** VARIABLES FOR ACCESSING THE LOCATION/BOUNDS OF THE CURRENT MARK. */
 123 static gint mark_x1;
 124 static gint mark_x2;
 125 static gint mark_y1;
 126 static gint mark_y2;
 127 static gint mark_minx;
 128 static gint mark_miny;
 129 static gint mark_width;
 130 static gint mark_height;
 131
 132 static GdkRectangle scale_rect;
 133 static PangoContext *scale_context;
 134 static PangoFontDescription *scale_font;
 135 static PangoLayout *scale_layout;
 136
 137 static GdkGC *speed_gc1;
 138 static GdkGC *speed_gc2;
 139 static PangoContext *speed_context;
 140 static PangoLayout *speed_layout;
 141 static PangoFontDescription *speed_fontdesc;
 142
 143 static gint zoom_timeout_sid=0;
 144 static gint map_mode=0;
 145 static gboolean map_data_needs_refresh=FALSE;
 146
 147 osm_location map_loc = {NULL, NULL, NULL, FALSE, FALSE, 0, 0, 0.0, 0.0, 0 };
 148
 149 static GTimer *map_timer;
 150
 151 /* Tile max age, 1 week */
 152 #define TILE_MAX_AGE (604800)
 153
 154 #define KM10KNOTS (5.39956803)
 155
 156 static void map_update_location(gdouble lat, gdouble lon, gboolean force);
 157 static void map_speed_draw(void);
 158 static gboolean map_cb_after_realize(GtkWidget *map_widget, gpointer data);
 159 static gboolean map_cb_configure(GtkWidget *widget, GdkEventConfigure *event);
 160 static gboolean map_cb_expose(GtkWidget * widget, GdkEventExpose * event);
 161 static gboolean map_cb_button_press(GtkWidget * widget, GdkEventButton * event);
 162 static gboolean map_cb_button_release(GtkWidget * widget, GdkEventButton * event);
 163 static gboolean map_cb_scroll_event(GtkWidget * widget, GdkEventScroll * event);
 164
 165 /******************************************************************************/
 166
 167 GtkWidget *
 168 map_new(void)
 169 {
 170 GtkWidget *map_widget;
 171
 172 map_widget=gtk_drawing_area_new();
 173 map_timer=g_timer_new();
 174
 175 map_ic=image_cache_new(MAP_CACHE_MAX);
 176 g_debug("World size: %u", WORLD_SIZE_UNITS);
 177
 178 #ifdef WITH_GL
 179 map_gl_config=gdk_gl_config_new_by_mode(GDK_GL_MODE_RGB | GDK_GL_MODE_DEPTH);
 180 if (map_gl_config) {
 181     g_print("OpenGL version: %s\n", glGetString (GL_VERSION));
 182     g_print("OpenGL vendor: %s\n", glGetString (GL_VENDOR));
 183     g_print("OpenGL renderer: %s\n", glGetString (GL_RENDERER));
 184         gtk_widget_set_gl_capability(map_widget, map_gl_config, NULL, TRUE, GDK_GL_RGBA_TYPE);
 185         map_gl=TRUE;
 186 }
 187 #endif
 188
 189 g_signal_connect_after(G_OBJECT(map_widget), "realize", G_CALLBACK(map_cb_after_realize), NULL);
 190 g_signal_connect(G_OBJECT(map_widget), "configure_event", G_CALLBACK(map_cb_configure), NULL);
 191
 192 return map_widget;
 193 }
 194
 195 static gboolean
 196 map_cb_after_realize(GtkWidget *map_widget, gpointer data)
 197 {
 198 GdkColor color;
 199
 200 g_debug("MAP: after_realize");
 201
 202 scale_context=gtk_widget_get_pango_context(map_widget);
 203 scale_layout=pango_layout_new(scale_context);
 204 scale_font=pango_font_description_new();
 205 pango_font_description_set_size(scale_font, 12 * PANGO_SCALE);
 206 pango_layout_set_font_description(scale_layout, scale_font);
 207
 208 /* Speed limit, over limit color */
 209 speed_gc1=gdk_gc_new(map_widget->window);
 210 color.red=0xffff;
 211 color.green=0;
 212 color.blue=0;
 213 gdk_gc_set_rgb_fg_color(speed_gc1, &color);
 214
 215 /* Speed limit, under limit color */
 216 speed_gc2=gdk_gc_new(map_widget->window);
 217 color.red=0;
 218 color.green=0x1000;
 219 color.blue=0;
 220 gdk_gc_set_rgb_fg_color(speed_gc2, &color);
 221
 222 speed_context=gtk_widget_get_pango_context(map_widget);
 223 speed_layout=pango_layout_new(speed_context);
 224 speed_fontdesc=pango_font_description_new();
 225 pango_font_description_set_size(speed_fontdesc, 48 * PANGO_SCALE);
 226 pango_layout_set_font_description(speed_layout, speed_fontdesc);
 227 pango_layout_set_alignment(speed_layout, PANGO_ALIGN_CENTER);
 228
 229 /* Signals */
 230 g_signal_connect(G_OBJECT(map_widget), "expose_event", G_CALLBACK(map_cb_expose), NULL);
 231 g_signal_connect(G_OBJECT(map_widget), "button_press_event", G_CALLBACK(map_cb_button_press), NULL);
 232 g_signal_connect(G_OBJECT(map_widget), "button_release_event",G_CALLBACK(map_cb_button_release), NULL);
 233 g_signal_connect(G_OBJECT(map_widget), "scroll_event",  G_CALLBACK(map_cb_scroll_event), NULL);
 234
 235 gtk_widget_add_events(map_widget, GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
 236         | GDK_LEAVE_NOTIFY_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK);
 237 #ifdef WITH_HILDON
 238 gtk_widget_set_extension_events(GTK_WIDGET(map_widget), GDK_EXTENSION_EVENTS_ALL);
 239 #endif
 240
 241 map_poi_init(map_widget);
 242
 243 return TRUE;
 244 }
 245
 246 static gboolean
 247 map_cb_configure(GtkWidget *widget, GdkEventConfigure *event)
 248 {
 249 guint tw, th;
 250
 251 tw=TILE_SIZE_PIXELS*((widget->allocation.width/TILE_SIZE_PIXELS)+2);
 252 th=TILE_SIZE_PIXELS*((widget->allocation.height/TILE_SIZE_PIXELS)+2);
 253
 254 if (map_pixmap==NULL) {
 255         map_pixmap=gdk_pixmap_new(widget->window, tw, th, -1);
 256 } else {
 257         if (tw>buf_width_pixels || th>buf_height_pixels) {
 258                 g_object_unref(map_pixmap);
 259                 map_pixmap=gdk_pixmap_new(widget->window, tw, th, -1);
 260         } else if (tw<buf_width_pixels-(TILE_SIZE_PIXELS*2) || th<buf_height_pixels-(TILE_SIZE_PIXELS*2)) {
 261                 g_object_unref(map_pixmap);
 262                 map_pixmap=gdk_pixmap_new(widget->window, tw, th, -1);
 263         }
 264 }
 265 g_assert(map_pixmap);
 266
 267 buf_width_pixels=tw;
 268 buf_height_pixels=th;
 269 buf_width_tiles=buf_width_pixels/TILE_SIZE_PIXELS;
 270 buf_height_tiles=buf_height_pixels/TILE_SIZE_PIXELS;
 271
 272 _screen_width_pixels = widget->allocation.width;
 273 _screen_height_pixels = widget->allocation.height;
 274 _screen_grids_halfwidth = pixel2grid(_screen_width_pixels) / 2;
 275 _screen_grids_halfheight = pixel2grid(_screen_height_pixels) / 2;
 276
 277 /* Set scale_rect. */
 278 scale_rect.x = (_screen_width_pixels - SCALE_WIDTH) / 2;
 279 scale_rect.width = SCALE_WIDTH;
 280
 281 MACRO_RECALC_FOCUS_BASE(_center_ratio);
 282 MACRO_RECALC_FOCUS_SIZE(_center_ratio);
 283
 284 _min_center.unitx = pixel2unit(grid2pixel(_screen_grids_halfwidth));
 285 _min_center.unity = pixel2unit(grid2pixel(_screen_grids_halfheight));
 286 _max_center.unitx = WORLD_SIZE_UNITS - grid2unit(_screen_grids_halfwidth) - 1;
 287 _max_center.unity = WORLD_SIZE_UNITS - grid2unit(_screen_grids_halfheight) - 1;
 288
 289 map_force_redraw();
 290 return TRUE;
 291 }
 292
 293 /**
 294  * Draw the current mark (representing the current GPS location) onto
 295  * _map_widget.  This method does not queue the draw area.
 296  */
 297 static void
 298 map_draw_mark(Gps *gps)
 299 {
 300 gdk_draw_arc(_map_widget->window, gps->io.conn == RCVR_FIXED ? _gc[COLORABLE_MARK] : _gc[COLORABLE_MARK_OLD], FALSE,
 301      mark_x1 - _draw_width, mark_y1 - _draw_width, 2 * _draw_width, 2 * _draw_width, 0, 360 * 64);
 302 gdk_draw_line(_map_widget->window, gps->io.conn == RCVR_FIXED ? (_show_velvec ? _gc[COLORABLE_MARK_VELOCITY] : _gc[COLORABLE_MARK]) : _gc[COLORABLE_MARK_OLD],
 303       mark_x1, mark_y1, mark_x2, mark_y2);
 304 }
 305
 306 /**
 307  * "Set" the mark, which translates the current GPS position into on-screen
 308  * units in preparation for drawing the mark with map_draw_mark().
 309  */
 310 void
 311 map_set_mark(GpsData *gps)
 312 {
 313 mark_x1 = unit2x(gps->unitx);
 314 mark_y1 = unit2y(gps->unity);
 315 mark_x2 = mark_x1 + (_show_velvec ? gps->vel_offsetx : 0);
 316 mark_y2 = mark_y1 + (_show_velvec ? gps->vel_offsety : 0);
 317 mark_minx = MIN(mark_x1, mark_x2) - (2 * _draw_width);
 318 mark_miny = MIN(mark_y1, mark_y2) - (2 * _draw_width);
 319 mark_width = abs(mark_x1 - mark_x2) + (4 * _draw_width);
 320 mark_height = abs(mark_y1 - mark_y2) + (4 * _draw_width);
 321 }
 322
 323 /**
 324  * Do an in-place scaling of a pixbuf's pixels at the given ratio from the
 325  * given source location.  It would have been nice if gdk_pixbuf provided
 326  * this method, but I guess it's not general-purpose enough.
 327  */
 328 static void
 329 map_pixbuf_scale_inplace(GdkPixbuf *pixbuf, guint ratio_p2, guint src_x, guint src_y)
 330 {
 331 guint dest_x = 0, dest_y = 0, dest_dim = TILE_SIZE_PIXELS;
 332 guint rowstride = gdk_pixbuf_get_rowstride(pixbuf);
 333 guint n_channels = gdk_pixbuf_get_n_channels(pixbuf);
 334 guchar *pixels = gdk_pixbuf_get_pixels(pixbuf);
 335
 336 /* Sweep through the entire dest area, copying as necessary, but
 337  * DO NOT OVERWRITE THE SOURCE AREA.  We'll copy it afterward. */
 338 do {
 339         guint src_dim = dest_dim >> ratio_p2;
 340         guint src_endx = src_x - dest_x + src_dim;
 341         gint x, y;
 342
 343         for (y = dest_dim - 1; y >= 0; y--) {
 344                 guint src_offset_y, dest_offset_y;
 345
 346                 src_offset_y = (src_y + (y >> ratio_p2)) * rowstride;
 347                 dest_offset_y = (dest_y + y) * rowstride;
 348                 x = dest_dim - 1;
 349
 350                 if ((unsigned)(dest_y + y - src_y) < src_dim && (unsigned)(dest_x + x - src_x) < src_dim)
 351                         x -= src_dim;
 352
 353                 for (; x >= 0; x--) {
 354                         guint src_offset, dest_offset, i;
 355
 356                         src_offset = src_offset_y + (src_x + (x >> ratio_p2)) * n_channels;
 357                         dest_offset = dest_offset_y + (dest_x + x) * n_channels;
 358
 359                         pixels[dest_offset] = pixels[src_offset];
 360                         for (i = n_channels - 1; i; i--)
 361                                 pixels[dest_offset + i] = pixels[src_offset + i];
 362
 363                         if ((unsigned)(dest_y + y - src_y) < src_dim && x == src_endx)
 364                                 x -= src_dim;
 365                 }
 366         }
 367
 368         /* Reuse src_dim and src_endx to store new src_x and src_y. */
 369         src_dim = src_x + ((src_x - dest_x) >> ratio_p2);
 370         src_endx = src_y + ((src_y - dest_y) >> ratio_p2);
 371         dest_x = src_x;
 372         dest_y = src_y;
 373         src_x = src_dim;
 374         src_y = src_endx;
 375 }
 376 while ((dest_dim >>= ratio_p2) > 1);
 377 }
 378
 379 /**
 380  * Trim pixbufs that are bigger than tiles. (Those pixbufs result, when
 381  * captions should be cut off.)
 382  */
 383 static GdkPixbuf *
 384 pixbuf_trim(GdkPixbuf * pixbuf)
 385 {
 386 GdkPixbuf *mpixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, gdk_pixbuf_get_has_alpha(pixbuf),
 387                    8, TILE_SIZE_PIXELS, TILE_SIZE_PIXELS);
 388
 389 g_debug("TRIM!!");
 390 gdk_pixbuf_copy_area(pixbuf,
 391                      (gdk_pixbuf_get_width(pixbuf) - TILE_SIZE_PIXELS) / 2,
 392                      (gdk_pixbuf_get_height(pixbuf) - TILE_SIZE_PIXELS) / 2,
 393                      TILE_SIZE_PIXELS,
 394                      TILE_SIZE_PIXELS, mpixbuf, 0, 0);
 395
 396 g_object_unref(pixbuf);
 397 return mpixbuf;
 398 }
 399
 400 GdkPixmap *
 401 map_pixmap_get(void)
 402 {
 403 return map_pixmap;
 404 }
 405
 406 static GdkPixbuf *
 407 map_tile_load(guint tilex, guint tiley, gint zoff, gboolean download)
 408 {
 409 GdkPixbuf *pixbuf;
 410 GError *error = NULL;
 411 gchar buffer[BUFFER_SIZE];
 412 gchar key[BUFFER_SIZE];
 413 struct stat tstat;
 414 gint se;
 415
 416 g_snprintf(buffer, sizeof(buffer), "%s/%u/%u/%u.jpg", _curr_repo->cache_dir, _zoom + zoff, (tilex >> zoff), (tiley >> zoff));
 417 g_snprintf(key, sizeof(key), "%s/%u/%u/%u", _curr_repo->cache_dir, _zoom + zoff, (tilex >> zoff), (tiley >> zoff));
 418
 419 pixbuf=image_cache_get(map_ic, key, buffer);
 420 if (!pixbuf) {
 421         g_unlink(buffer);
 422
 423         if (_auto_download && _curr_repo->type != REPOTYPE_NONE && !((_zoom + zoff - (_curr_repo->double_size ? 1 : 0)) % _curr_repo->dl_zoom_steps)) {
 424                 if (download)
 425                         map_initiate_download(tilex >> zoff, tiley >> zoff, _zoom + zoff, -INITIAL_DOWNLOAD_RETRIES);
 426         }
 427         return NULL;
 428 }
 429
 430 g_object_ref(pixbuf);
 431
 432 #if 0
 433 /* Check if we need to trim. */
 434 if (gdk_pixbuf_get_width(pixbuf) != TILE_SIZE_PIXELS || gdk_pixbuf_get_height(pixbuf) != TILE_SIZE_PIXELS)
 435         pixbuf=pixbuf_trim(pixbuf);
 436 #endif
 437
 438 /* Check tile age, if file date is ower a week old, redownload if autodownload enabled */
 439 se=stat(buffer, &tstat);
 440 if (se==0) {
 441         time_t t;
 442         t=time(NULL);
 443         if (t-tstat.st_mtime>TILE_MAX_AGE) {
 444                 if (_auto_download && _curr_repo->type != REPOTYPE_NONE && !((_zoom + zoff - (_curr_repo->double_size ? 1 : 0)) % _curr_repo->dl_zoom_steps)) {
 445                         if (download) {
 446                                 g_debug("Tile: %s is old, re-downloading\n", buffer);
 447                                 map_initiate_download(tilex >> zoff, tiley >> zoff, _zoom + zoff, -INITIAL_DOWNLOAD_RETRIES);
 448                                 image_cache_invalidate(map_ic, key);
 449                         }
 450                 }
 451         }
 452 }
 453
 454 return pixbuf;
 455 }
 456
 457 gboolean
 458 map_render_tile(guint tilex, guint tiley, guint destx, guint desty, gboolean fast_fail)
 459 {
 460 GdkPixbuf *pixbuf=NULL;
 461 gint zoff;
 462
 463 if (destx > buf_width_pixels || desty > buf_height_pixels)
 464         return FALSE;
 465
 466 if (tilex > _world_size_tiles || tiley > _world_size_tiles)
 467         return FALSE;
 468
 469 g_debug("MAP RT: %u %u (%u) %u %u (%u, %u)", tilex, tiley, _world_size_tiles, destx, desty, buf_width_tiles, buf_height_tiles);
 470
 471 /* The tile is possible. */
 472 for (zoff = (_curr_repo->double_size ? 1 : 0); !pixbuf && (_zoom + zoff) <= map_max_zoom && zoff <= TILE_SIZE_P2; zoff += 1) {
 473         pixbuf=map_tile_load(tilex, tiley, zoff, !fast_fail);
 474         if (!pixbuf) {
 475                 if (!fast_fail)
 476                         fast_fail=TRUE;
 477         } else {
 478                 /* Check if we need to blit. */
 479                 if (zoff) {
 480                         map_pixbuf_scale_inplace(pixbuf, zoff,
 481                                         (tilex - ((tilex >> zoff) << zoff)) << (TILE_SIZE_P2 - zoff),
 482                                         (tiley - ((tiley >> zoff) << zoff)) << (TILE_SIZE_P2 - zoff));
 483                         image_cache_invalidate_by_image(map_ic, pixbuf);
 484                 }
 485         }
 486 }
 487
 488 if (pixbuf) {
 489         gdk_draw_pixbuf(map_pixmap, _gc[COLORABLE_MARK], pixbuf, 0, 0, destx, desty, TILE_SIZE_PIXELS, TILE_SIZE_PIXELS, GDK_RGB_DITHER_NONE, 0, 0);
 490         g_object_unref(pixbuf);
 491         return TRUE;
 492 }
 493 gdk_draw_rectangle(map_pixmap, _map_widget->style->black_gc, TRUE, destx, desty, TILE_SIZE_PIXELS, TILE_SIZE_PIXELS);
 494 return TRUE;
 495 }
 496
 497 void
 498 map_render_data(void)
 499 {
 500 /* Don't update if dragging, too much lag */
 501 if (map_drag_id>0)
 502         return;
 503
 504 if(_show_poi)
 505         map_render_all_pois(buf_width_pixels, buf_height_pixels);
 506
 507 if (_home.valid)
 508         map_draw_position_icon(&_home, "home");
 509
 510 if (_dest.valid)
 511         map_draw_position_icon(&_dest, "destination");
 512
 513 if(_show_tracks>0)
 514         map_render_paths();
 515 }
 516
 517 /**
 518  * Force a redraw of the entire map_pixmap, including fetching the
 519  * background maps from disk and redrawing the tracks on top of them.
 520  */
 521 void
 522 map_force_redraw(void)
 523 {
 524 guint new_x, new_y;
 525 #ifdef DEBUG
 526 gulong tms;
 527
 528 g_timer_start(map_timer);
 529 #endif
 530 for (new_y = 0; new_y < buf_height_tiles; ++new_y)
 531         for (new_x = 0; new_x < buf_width_tiles; ++new_x) {
 532                 map_render_tile(_base_tilex + new_x, _base_tiley + new_y,
 533                                 new_x * TILE_SIZE_PIXELS, new_y * TILE_SIZE_PIXELS, FALSE);
 534         }
 535 #ifdef DEBUG
 536 g_timer_stop(map_timer);
 537 g_debug("Full redraw: %f sec\n", g_timer_elapsed(map_timer, &tms));
 538 #endif
 539
 540 map_render_data();
 541 MACRO_QUEUE_DRAW_AREA();
 542 }
 543
 544 guint
 545 map_get_zoom(void)
 546 {
 547 return _zoom;
 548 }
 549
 550 /**
 551  * Set the current zoom level.  If the given zoom level is the same as the
 552  * current zoom level, or if the new zoom is invalid
 553  * (not MIN_ZOOM <= new_zoom < MAX_ZOOM), then this method does nothing.
 554  */
 555 gboolean
 556 map_set_zoom(guint new_zoom)
 557 {
 558 /* Note that, since new_zoom is a guint and MIN_ZOOM is 0, this if
 559  * condition also checks for new_zoom >= MIN_ZOOM. */
 560 if (new_zoom > (map_max_zoom - 1))
 561         return FALSE;
 562 if (new_zoom == _zoom)
 563         return FALSE;
 564
 565 _zoom = new_zoom / _curr_repo->view_zoom_steps * _curr_repo->view_zoom_steps;
 566 _world_size_tiles = unit2tile(WORLD_SIZE_UNITS);
 567
 568 /* If we're leading, update the center to reflect new zoom level. */
 569 MACRO_RECALC_CENTER(_gps->data, _center.unitx, _center.unity);
 570
 571 /* Update center bounds to reflect new zoom level. */
 572 _min_center.unitx = pixel2unit(grid2pixel(_screen_grids_halfwidth));
 573 _min_center.unity = pixel2unit(grid2pixel(_screen_grids_halfheight));
 574 _max_center.unitx = WORLD_SIZE_UNITS - grid2unit(_screen_grids_halfwidth) - 1;
 575 _max_center.unity = WORLD_SIZE_UNITS - grid2unit(_screen_grids_halfheight) - 1;
 576
 577 BOUND(_center.unitx, _min_center.unitx, _max_center.unitx);
 578 BOUND(_center.unity, _min_center.unity, _max_center.unity);
 579
 580 _base_tilex = grid2tile((gint) pixel2grid((gint) unit2pixel((gint) _center.unitx)) - (gint) _screen_grids_halfwidth);
 581 _base_tiley = grid2tile(pixel2grid(unit2pixel(_center.unity)) - _screen_grids_halfheight);
 582
 583 /* New zoom level, so we can't reuse the old buffer's pixels. */
 584 /* Update state variables. */
 585 MACRO_RECALC_OFFSET();
 586 MACRO_RECALC_FOCUS_BASE(_center_ratio);
 587 MACRO_RECALC_FOCUS_SIZE(_center_ratio);
 588
 589 map_set_mark(&_gps->data);
 590 map_force_redraw();
 591 return TRUE;
 592 }
 593
 594 /**
 595  * Center the view on the given unitx/unity.
 596  */
 597 void
 598 map_center_unit(guint new_center_unitx, guint new_center_unity)
 599 {
 600 gint new_base_tilex, new_base_tiley;
 601 guint new_x, new_y;
 602 guint j, k, base_new_x, base_old_x, old_x, old_y, iox, ioy;
 603
 604 /* Assure that _center.unitx/y are bounded. */
 605 BOUND(new_center_unitx, _min_center.unitx, _max_center.unitx);
 606 BOUND(new_center_unity, _min_center.unity, _max_center.unity);
 607
 608 _center.unitx = new_center_unitx;
 609 _center.unity = new_center_unity;
 610
 611 new_base_tilex = grid2tile((gint) pixel2grid((gint)unit2pixel((gint) _center.unitx)) - (gint)_screen_grids_halfwidth);
 612 new_base_tiley = grid2tile(pixel2grid(unit2pixel(_center.unity)) - _screen_grids_halfheight);
 613
 614 /* Same zoom level, so it's likely that we can reuse some of the old
 615  * buffer's pixels. */
 616
 617 if (new_base_tilex != _base_tilex || new_base_tiley != _base_tiley) {
 618         /* If copying from old parts to new parts, we need to make sure we
 619          * don't overwrite the old parts when copying, so set up new_x,
 620          * new_y, old_x, old_y, iox, and ioy with that in mind. */
 621         if (new_base_tiley < _base_tiley) {
 622                 /* New is lower than old - start at bottom and go up. */
 623                 new_y = buf_height_tiles - 1;
 624                 ioy = -1;
 625         } else {
 626                 /* New is higher than old - start at top and go down. */
 627                 new_y = 0;
 628                 ioy = 1;
 629         }
 630         if (new_base_tilex < _base_tilex) {
 631                 /* New is righter than old - start at right and go left. */
 632                 base_new_x = buf_width_tiles - 1;
 633                 iox = -1;
 634         } else {
 635                 /* New is lefter than old - start at left and go right. */
 636                 base_new_x = 0;
 637                 iox = 1;
 638         }
 639
 640         /* Iterate over the y tile values. */
 641         old_y = new_y + new_base_tiley - _base_tiley;
 642         base_old_x = base_new_x + new_base_tilex - _base_tilex;
 643         _base_tilex = new_base_tilex;
 644         _base_tiley = new_base_tiley;
 645
 646         for (j = 0; j < buf_height_tiles; ++j, new_y += ioy, old_y += ioy) {
 647                 new_x = base_new_x;
 648                 old_x = base_old_x;
 649                 /* Iterate over the x tile values. */
 650                 for (k = 0; k < buf_width_tiles; ++k, new_x += iox, old_x += iox) {
 651                         /* Can we get this grid block from the old buffer?. */
 652                         if (old_x >= 0 && old_x < buf_width_tiles && old_y >= 0 && old_y < buf_height_tiles) {
 653                                 /* Copy from old buffer to new buffer. */
 654                                 gdk_draw_drawable(map_pixmap,
 655                                                   _gc[COLORABLE_MARK],
 656                                                   map_pixmap,
 657                                                   old_x * TILE_SIZE_PIXELS,
 658                                                   old_y * TILE_SIZE_PIXELS,
 659                                                   new_x * TILE_SIZE_PIXELS,
 660                                                   new_y * TILE_SIZE_PIXELS,
 661                                                   TILE_SIZE_PIXELS,
 662                                                   TILE_SIZE_PIXELS);
 663                         } else {
 664                                 map_render_tile(new_base_tilex + new_x,
 665                                                 new_base_tiley + new_y,
 666                                                 new_x * TILE_SIZE_PIXELS,
 667                                                 new_y * TILE_SIZE_PIXELS,
 668                                                 map_drag_id!=0 ? TRUE : FALSE);
 669                         }
 670                 }
 671         }
 672         map_render_data();
 673 }
 674
 675 MACRO_RECALC_OFFSET();
 676 MACRO_RECALC_FOCUS_BASE(_center_ratio);
 677
 678 map_set_mark(&_gps->data);
 679 MACRO_QUEUE_DRAW_AREA();
 680 }
 681
 682 /**
 683  * Pan the view by the given number of units in the X and Y directions.
 684  */
 685 void
 686 map_pan(gint delta_unitx, gint delta_unity)
 687 {
 688 if (_center_mode > 0)
 689         set_action_activate("autocenter_none", TRUE);
 690
 691 map_center_unit(_center.unitx + delta_unitx, _center.unity + delta_unity);
 692 }
 693
 694 /**
 695  * Helper to center map on given lat/lon
 696  */
 697 void
 698 map_center_latlon(gdouble lat, gdouble lon)
 699 {
 700 guint unitx, unity;
 701
 702 latlon2unit(lat, lon, unitx, unity);
 703 map_center_unit(unitx, unity);
 704 }
 705
 706 /**
 707  * Helper to goto given point and update location
 708  *
 709  */
 710 gboolean
 711 map_goto_position(Position *pos)
 712 {
 713 if (pos->valid==FALSE)
 714         return FALSE;
 715
 716 _center_mode=CENTER_MANUAL;
 717 map_center_latlon(pos->lat, pos->lon);
 718 map_set_autozoom(FALSE, 0);
 719 g_idle_add_full(G_PRIORITY_HIGH_IDLE,(GSourceFunc)map_update_location_from_center, NULL, NULL);
 720 return TRUE;
 721 }
 722
 723 /**
 724  * Initiate a move of the mark from the old location to the current
 725  * location.  This function queues the draw area of the old mark (to force
 726  * drawing of the background map), then updates the mark, then queus the
 727  * draw area of the new mark.
 728  */
 729 void
 730 map_move_mark(void)
 731 {
 732 /* Just queue the old and new draw areas. */
 733 gtk_widget_queue_draw_area(_map_widget,
 734                    mark_minx<0 ? 0 : mark_minx,
 735                    mark_miny<0 ? 0 : mark_miny,
 736                    mark_width, mark_height);
 737 map_set_mark(&_gps->data);
 738 gtk_widget_queue_draw_area(_map_widget,
 739                    mark_minx<0 ? 0 : mark_minx,
 740                    mark_miny<0 ? 0 : mark_miny,
 741                    mark_width, mark_height);
 742 }
 743
 744 gboolean
 745 map_update_location_from_gps(Gps *gps)
 746 {
 747 g_assert(gps);
 748 map_update_location(gps->data.lat, gps->data.lon, FALSE);
 749 return FALSE;
 750 }
 751
 752 gboolean
 753 map_update_location_from_center(void)
 754 {
 755 gdouble lat, lon;
 756 /* Force re-validation of place if user is clicking around */
 757 map_loc.valid=FALSE;
 758 /* XXX: hmm, not the right place for this */
 759 #if 0
 760 if (_gps->fix==FIX_NOFIX) {
 761         _gps->data.unitx=_center.unitx;
 762         _gps->data.unity=_center.unity;
 763         unit2latlon(_gps->data.unitx, _gps->data.unity, _gps->data.lat, _gps->data.lon);
 764 }
 765 #endif
 766 unit2latlon(_center.unitx, _center.unity, lat, lon);
 767 map_update_location(lat, lon, TRUE);
 768 return FALSE;
 769 }
 770
 771 void
 772 map_draw_pixbuf_on_buffer(gint x, gint y, GdkPixbuf *p)
 773 {
 774 if ((x < 0) || (y < 0))
 775         return;
 776
 777 if ((x > buf_width_pixels) || (y > buf_height_pixels))
 778         return;
 779
 780 gdk_draw_pixbuf(map_pixmap, _gc[COLORABLE_POI],
 781         p, 0, 0,
 782         x - gdk_pixbuf_get_width(p) / 2,
 783         y - gdk_pixbuf_get_height(p) / 2,
 784         -1, -1, GDK_RGB_DITHER_NONE, 0, 0);
 785 }
 786
 787 /**
 788  * Draw given pixbuf on map, centered on x,y
 789  */
 790 void
 791 map_draw_pixbuf(guint unitx, guint unity, GdkPixbuf *p)
 792 {
 793 gint x,y;
 794 x=unit2bufx(unitx);
 795 y=unit2bufy(unity);
 796
 797 map_draw_pixbuf_on_buffer(x, y, p);
 798 }
 799
 800 /**
 801  * Draw an icon at given Position.
 802  *
 803  */
 804 static void
 805 map_draw_position_icon(Position *pos, const gchar *icon)
 806 {
 807 gint x, y;
 808 guint ux, uy;
 809 gchar buffer[128];
 810 GdkPixbuf *p;
 811
 812 latlon2unit(pos->lat, pos->lon, ux, uy);
 813 x=unit2bufx(ux);
 814 y=unit2bufy(uy);
 815
 816 if ((x < 0) || (y < 0))
 817         return;
 818
 819 if ((x > buf_width_pixels) || (y > buf_height_pixels))
 820         return;
 821
 822 g_snprintf(buffer, sizeof(buffer), "%s/pixmaps/mapper/%s.png", DATADIR, icon);
 823 p=gdk_pixbuf_new_from_file(buffer, NULL);
 824 if (!p)
 825         return;
 826
 827 map_draw_pixbuf_on_buffer(x, y, p);
 828 g_object_unref(p);
 829 }
 830
 831 /**
 832  * Make sure the mark is up-to-date.  This function triggers a panning of
 833  * the view if the mark is appropriately close to the edge of the view.
 834  */
 835 void
 836 map_refresh_mark(void)
 837 {
 838 guint new_center_unitx;
 839 guint new_center_unity;
 840
 841 MACRO_RECALC_CENTER(_gps->data, new_center_unitx, new_center_unity);
 842
 843 if ((new_center_unitx - _focus.unitx) < _focus_unitwidth && (new_center_unity - _focus.unity) < _focus_unitheight)
 844         /* We're not changing the view - just move the mark. */
 845         map_move_mark();
 846 else
 847         map_center_unit(new_center_unitx, new_center_unity);
 848
 849 /* Draw speed info */
 850 if (_speed_on)
 851         map_speed_draw();
 852
 853 if (_center_mode>0)
 854         g_idle_add_full(G_PRIORITY_HIGH_IDLE,(GSourceFunc)map_update_location_from_gps, _gps, NULL);
 855 }
 856
 857 /**
 858  * Render a single track line to map_pixmap.  If either point on the line
 859  * is a break (defined as unity == 0), a circle is drawn at the other point.
 860  * IT IS AN ERROR FOR BOTH POINTS TO INDICATE A BREAK.
 861  */
 862 void
 863 map_render_segment(GdkGC *gc_norm, GdkGC *gc_alt, guint unitx1, guint unity1, guint unitx2, guint unity2)
 864 {
 865 if (!unity1) {
 866         guint x2, y2;
 867
 868         x2 = unit2bufx(unitx2);
 869         y2 = unit2bufy(unity2);
 870         /* Make sure this circle will be visible. */
 871         if ((x2 < buf_width_pixels) && (y2 < buf_height_pixels))
 872                 gdk_draw_arc(map_pixmap, gc_alt, FALSE, /* FALSE: not filled. */
 873                      x2 - _draw_width, y2 - _draw_width, 2 * _draw_width, 2 * _draw_width, 0,   /* start at 0 degrees. */
 874                      360 * 64);
 875 } else if (!unity2) {
 876         guint x1, y1;
 877
 878         x1 = unit2bufx(unitx1);
 879         y1 = unit2bufy(unity1);
 880         /* Make sure this circle will be visible. */
 881         if ((x1 < buf_width_pixels) && ((unsigned)y1 < buf_height_pixels))
 882                 gdk_draw_arc(map_pixmap, gc_alt, FALSE, /* FALSE: not filled. */
 883                      x1 - _draw_width, y1 - _draw_width, 2 * _draw_width, 2 * _draw_width, 0,   /* start at 0 degrees. */
 884                      360 * 64);
 885 } else {
 886         gint x1, y1, x2, y2;
 887
 888         x1 = unit2bufx(unitx1);
 889         y1 = unit2bufy(unity1);
 890         x2 = unit2bufx(unitx2);
 891         y2 = unit2bufy(unity2);
 892         /* Make sure this line could possibly be visible. */
 893         if (!((x1 > buf_width_pixels && x2 > buf_width_pixels)
 894               || (x1 < 0 && x2 < 0)
 895               || (y1 > buf_height_pixels && y2 > buf_height_pixels)
 896               || (y1 < 0 && y2 < 0)))
 897                 gdk_draw_line(map_pixmap, gc_norm, x1, y1, x2, y2);
 898         }
 899 }
 900
 901 void
 902 map_render_waypoint(guint x1, guint y1, GdkGC *gc)
 903 {
 904 if ((x1 > buf_width_pixels) || (y1 > buf_height_pixels))
 905         return;
 906 gdk_draw_arc(map_pixmap, gc, FALSE, x1 - _draw_width, y1 - _draw_width, 2 * _draw_width, 2 * _draw_width, 0, 360 * 64);
 907 }
 908
 909 /**
 910  * Render all track data onto the map_pixmap.  Note that this does not
 911  * clear the pixmap of previous track data (use map_force_redraw() for
 912  * that), and also note that this method does not queue any redraws, so it
 913  * is up to the caller to decide which part of the track really needs to be
 914  * redrawn.
 915  */
 916 void
 917 map_render_path(Path * path, GdkGC ** gc)
 918 {
 919 Point *curr;
 920 WayPoint *wcurr;
 921
 922 /* gc is a pointer to the first GC to use (for plain points).  (gc + 1)
 923  * is a pointer to the GC to use for waypoints, and (gc + 2) is a pointer
 924  * to the GC to use for breaks. */
 925
 926 /* else there is a route to draw. */
 927 for (curr = path->head, wcurr = path->whead; curr++ != path->tail;) {
 928         /* Draw the line from (curr - 1) to (curr). */
 929         map_render_segment(gc[0], gc[2], curr[-1].unitx, curr[-1].unity, curr->unitx, curr->unity);
 930
 931         /* Now, check if curr is a waypoint. */
 932         if (wcurr && wcurr <= path->wtail && wcurr->point == curr) {
 933                 guint x1 = unit2bufx(wcurr->point->unitx);
 934                 guint y1 = unit2bufy(wcurr->point->unity);
 935
 936                 map_render_waypoint(x1, y1, _gc[COLORABLE_TRACK_BREAK]);
 937                 wcurr++;
 938         }
 939 }
 940 }
 941
 942 void
 943 map_render_paths(void)
 944 {
 945 if ((_show_tracks & ROUTES_MASK) && _route->head != _route->tail) {
 946         map_render_path(_route, _gc + COLORABLE_ROUTE);
 947
 948         /* Now, draw the next waypoint on top of all other waypoints. */
 949         if (_next_way) {
 950                 guint x1 = unit2bufx(_next_way->point->unitx);
 951                 guint y1 = unit2bufy(_next_way->point->unity);
 952
 953                 if ((x1 < buf_width_pixels) && (y1 < buf_height_pixels)) {
 954                         /* Draw the next waypoint as a break. */
 955                         gdk_draw_arc(map_pixmap, _gc[COLORABLE_ROUTE_BREAK], FALSE,     /* FALSE: not filled. */
 956                              x1 - _draw_width, y1 - _draw_width, 4 * _draw_width, 4 * _draw_width, 0,   /* start at 0 degrees. */
 957                              360 * 64);
 958                 }
 959         }
 960 }
 961 if (_show_tracks & TRACKS_MASK)
 962         map_render_path(_track, _gc + COLORABLE_TRACK);
 963 }
 964
 965 /**
 966  *
 967  *
 968  */
 969 static gboolean
 970 map_follow_move_cb(GtkWidget *widget, GdkEventMotion *event, gpointer data)
 971 {
 972 GdkModifierType state;
 973 gint xx, yy;
 974 guint unitx, unity, nunitx, nunity;
 975 guint cx, cy;
 976
 977 if (!(event->state & GDK_BUTTON1_MASK)) {
 978         map_drag_id=0;
 979         return TRUE;
 980 }
 981
 982 if (event->is_hint) {
 983         gdk_window_get_pointer(event->window, &xx, &yy, &state);
 984         state = event->state;
 985 } else {
 986         xx = event->x;
 987         yy = event->y;
 988         state = event->state;
 989 }
 990
 991 unitx = x2unit((gint) (xx - before[0]));
 992 unity = y2unit((gint) (yy - before[1]));
 993 cx = unit2x(_center.unitx);
 994 cy = unit2y(_center.unity);
 995
 996 nunitx=x2unit((gint) (cx - (xx - before[0])));
 997 nunity=y2unit((gint) (cy - (yy - before[1])));
 998
 999 map_center_unit(nunitx, nunity);
1000
1001 map_dragged=TRUE;
1002 g_debug("MAP PAN: %d %d %d %d (%d, %d)", cx, cy, xx, yy, nunitx, nunity);
1003 before[0] = xx;
1004 before[1] = yy;
1005 return FALSE;
1006 }
1007
1008 gboolean
1009 map_key_zoom_timeout(void)
1010 {
1011 if (_key_zoom_new < _zoom) {
1012         /* We're currently zooming in (_zoom is decreasing). */
1013         guint test = _key_zoom_new - _curr_repo->view_zoom_steps;
1014         if (test < map_max_zoom)
1015                 _key_zoom_new = test;
1016         else
1017                 return FALSE;
1018 } else {
1019         /* We're currently zooming out (_zoom is increasing). */
1020         guint test = _key_zoom_new + _curr_repo->view_zoom_steps;
1021         if (test < map_max_zoom)
1022                 _key_zoom_new = test;
1023         else
1024                 return FALSE;
1025 }
1026
1027 return TRUE;
1028 }
1029
1030 static void
1031 map_information_text(guint x, guint y, GdkGC *gc, gchar *msg)
1032 {
1033 guint width, height;
1034
1035 pango_layout_set_text(speed_layout, msg, -1);
1036 pango_layout_get_pixel_size(speed_layout, &width, &height);
1037 gtk_widget_queue_draw_area(_map_widget, x - 5, y - 5, width * 3 + 15, height + 5);
1038 gdk_window_process_all_updates();
1039 gdk_draw_layout(_map_widget->window, gc, x, y, speed_layout);
1040 }
1041
1042 static void
1043 map_speed_draw(void)
1044 {
1045 GdkGC *gc;
1046 gfloat cur_speed;
1047 gchar *buffer;
1048
1049 cur_speed = _gps->data.speed * UNITS_CONVERT[_units];
1050 gc=(cur_speed > _speed_limit) ? speed_gc1 : speed_gc2;
1051 buffer = g_strdup_printf("%0.0f", cur_speed);
1052 map_information_text(10, 10, gc, buffer);
1053 g_free(buffer);
1054 }
1055
1056 static void
1057 map_scale_draw(GdkEventExpose *event)
1058 {
1059 gchar buffer[16];
1060 gdouble distance;
1061 gdouble lat1, lon1, lat2, lon2;
1062 gint width;
1063
1064 pango_layout_set_text(scale_layout, "0", -1);
1065 pango_layout_get_pixel_size(scale_layout, NULL, &scale_rect.height);
1066 scale_rect.y = _screen_height_pixels - scale_rect.height - 1;
1067
1068 gdk_rectangle_intersect(&event->area, &scale_rect, &event->area);
1069
1070 if (event->area.width && event->area.height) {
1071         gdk_draw_rectangle(_map_widget->window,
1072                            _map_widget->style->bg_gc[GTK_WIDGET_STATE(_map_widget)],
1073                            TRUE, scale_rect.x, scale_rect.y,
1074                            scale_rect.width,
1075                            scale_rect.height);
1076         gdk_draw_rectangle(_map_widget->window,
1077                            _map_widget->style->fg_gc[GTK_WIDGET_STATE(_map_widget)],
1078                            FALSE, scale_rect.x, scale_rect.y,
1079                            scale_rect.width,
1080                            scale_rect.height);
1081
1082         /* Now calculate and draw the distance. */
1083         unit2latlon(_center.unitx - pixel2unit(SCALE_WIDTH / 2 - 4), _center.unity, lat1, lon1);
1084         unit2latlon(_center.unitx + pixel2unit(SCALE_WIDTH / 2 - 4), _center.unity, lat2, lon2);
1085         distance=calculate_distance(lat1, lon1, lat2, lon2) * UNITS_CONVERT[_units];
1086
1087         if (distance < 1.f)
1088                 g_snprintf(buffer, sizeof(buffer), "%0.2f %s", distance, UNITS_TEXT[_units]);
1089         else if (distance < 10.f)
1090                 g_snprintf(buffer, sizeof(buffer), "%0.1f %s", distance, UNITS_TEXT[_units]);
1091         else
1092                 g_snprintf(buffer, sizeof(buffer), "%0.f %s", distance, UNITS_TEXT[_units]);
1093
1094         pango_layout_set_text(scale_layout, buffer, -1);
1095         pango_layout_get_pixel_size(scale_layout, &width, NULL);
1096
1097         /* Draw the layout itself. */
1098         gdk_draw_layout(_map_widget->window,
1099                         _map_widget->style->fg_gc[GTK_WIDGET_STATE(_map_widget)],
1100                         scale_rect.x + (scale_rect.width - width) / 2,
1101                         scale_rect.y, scale_layout);
1102
1103         /* Draw little hashes on the ends. */
1104         gdk_draw_line(_map_widget->window,
1105                       _map_widget->style->fg_gc[GTK_WIDGET_STATE(_map_widget)],
1106                       scale_rect.x + 4,
1107                       scale_rect.y + scale_rect.height / 2 - 4,
1108                       scale_rect.x + 4,
1109                       scale_rect.y + scale_rect.height / 2 + 4);
1110         gdk_draw_line(_map_widget->window,
1111                       _map_widget->style->fg_gc[GTK_WIDGET_STATE(_map_widget)],
1112                       scale_rect.x + 4,
1113                       scale_rect.y + scale_rect.height / 2,
1114                       scale_rect.x + (scale_rect.width - width) / 2 - 4,
1115                       scale_rect.y + scale_rect.height / 2);
1116         gdk_draw_line(_map_widget->window,
1117                       _map_widget->style->fg_gc[GTK_WIDGET_STATE(_map_widget)],
1118                       scale_rect.x + scale_rect.width - 4,
1119                       scale_rect.y + scale_rect.height / 2 - 4,
1120                       scale_rect.x + scale_rect.width - 4,
1121                       scale_rect.y + scale_rect.height / 2 + 4);
1122         gdk_draw_line(_map_widget->window,
1123                       _map_widget->style->fg_gc[GTK_WIDGET_STATE(_map_widget)],
1124                       scale_rect.x + scale_rect.width - 4,
1125                       scale_rect.y + scale_rect.height / 2,
1126                       scale_rect.x + (scale_rect.width + width) / 2 + 4,
1127                       scale_rect.y + scale_rect.height / 2);
1128         }
1129 }
1130
1131 static gboolean
1132 map_cb_expose(GtkWidget *widget, GdkEventExpose *event)
1133 {
1134 gdk_draw_drawable(GDK_DRAWABLE(_map_widget->window),
1135                 _gc[COLORABLE_MARK],
1136                 map_pixmap,
1137                 event->area.x + _offsetx, event->area.y + _offsety,
1138                 event->area.x, event->area.y,
1139                 event->area.width, event->area.height);
1140 map_draw_mark(_gps);
1141
1142 /* Draw scale, if necessary. */
1143 if (_show_scale)
1144         map_scale_draw(event);
1145
1146 #if 0
1147 if (_speed_on)
1148         map_speed_draw();
1149 #endif
1150
1151 return TRUE;
1152 }
1153
1154 int
1155 map_zoom(gint zdir)
1156 {
1157 gint nzoom;
1158
1159 nzoom=_zoom+zdir;
1160 if ((nzoom >= 0) && (nzoom < map_max_zoom - 1)) {
1161         image_cache_clear(map_ic);
1162         map_set_zoom(nzoom);
1163 }
1164 return nzoom;
1165 }
1166
1167 gboolean
1168 map_zoom_in(void)
1169 {
1170 map_zoom(-1);
1171 return FALSE;
1172 }
1173
1174 gboolean
1175 map_zoom_out(void)
1176 {
1177 map_zoom(1);
1178 return FALSE;
1179 }
1180
1181 static gboolean
1182 map_autozoomer(void)
1183 {
1184 static gfloat z=5.0;
1185 static gint last=5;
1186 gint b=0;
1187 gint iz;
1188
1189 if (zoom_timeout_sid==0)
1190         return FALSE;
1191
1192 /* If location is known, use road type and speed for zoom setting */
1193 if (map_loc.valid && map_loc.street) {
1194         switch (map_loc.street->type) {
1195         case WAY_MOTORWAY:
1196         case WAY_TRUNK:
1197                 b=2;
1198         break;
1199         case WAY_PRIMARY:
1200         case WAY_SECONDARY:
1201                 b=1;
1202         break;
1203         default:
1204                 b=0;
1205         break;
1206         }
1207 }
1208
1209 z=(z+_gps->data.speed+1)/5;
1210 z+=b;
1211 if (z>5) z=5.0; else if (z<1) z=1.0;
1212 iz=(gint)roundf(z);
1213 g_debug("Setting autozoom to: %f %d S:%f\n", z, iz, _gps->data.speed);
1214 if (iz>last)
1215         iz=last+1;
1216 else if (iz<last)
1217         iz=last-1;
1218 last=iz;
1219 map_set_zoom(iz);
1220
1221 return TRUE;
1222 }
1223
1224 void
1225 map_set_autozoom(gboolean az, gfloat speed)
1226 {
1227 if (az==TRUE) {
1228         zoom_timeout_sid=g_timeout_add(speed<5 ? 2000 : 5000, (GSourceFunc) map_autozoomer, NULL);
1229         MACRO_BANNER_SHOW_INFO(_window, "Autozoom enabled");
1230         return;
1231 } else {
1232         if (zoom_timeout_sid) {
1233                 g_source_remove(zoom_timeout_sid);
1234                 zoom_timeout_sid=0;
1235                 MACRO_BANNER_SHOW_INFO(_window, "Autozoom disabled");
1236         }
1237         return;
1238 }
1239
1240 }
1241
1242 static void
1243 map_draw_route(gint x, gint y)
1244 {
1245 cmenu_route_add_way(x, y);
1246 }
1247
1248 static void
1249 map_draw_track(gint x, gint y)
1250 {
1251 _gps->data.unitx=x2unit((gint) (x + 0.5));
1252 _gps->data.unity=y2unit((gint) (y + 0.5));
1253 unit2latlon(_gps->data.unitx, _gps->data.unity, _gps->data.lat, _gps->data.lon);
1254 _gps->data.speed=20.f;
1255 gps_data_integerize(&_gps->data);
1256 _gps->data.time=time(NULL);
1257 track_add(&_gps->data);
1258 map_refresh_mark();
1259 }
1260
1261 static void
1262 map_set_place_information(osm_way *s, osm_place *mp, osm_place *sp)
1263 {
1264 gchar buffer[256];
1265
1266 if (!s && !mp && !sp) {
1267         g_snprintf(buffer, sizeof(buffer), _("Unknown location"));
1268 } else {
1269         /* oh, fun */
1270         g_snprintf(buffer, sizeof(buffer), "%s%s%s%s%s%s%s%s%s%s",
1271         s ? s->name ? s->name : "" : "",
1272         s ? s->ref ? ", " : "" : "",
1273         s ? s->ref ? s->ref : "" : "",
1274         s ? s->int_ref ? " (" : "" : "",
1275         s ? s->int_ref ? s->int_ref : "" : "",
1276         s ? s->int_ref ? ") " : "" : "",
1277         (sp && sp->name) ? " in " : "",
1278         (sp && sp->name) ? sp->name : "",
1279         (mp && mp->name) ? " in " : "",
1280         (mp && mp->name) ? mp->name : "");
1281 }
1282 gtk_label_set_label(GTK_LABEL(info_banner.location), buffer);
1283 }
1284
1285 static void
1286 map_update_destination(gdouble lat, gdouble lon)
1287 {
1288 gdouble dh=0.0;
1289 gdouble dt, cdist;
1290 static gdouble prev_dt=99999.0;
1291 static gboolean dest_reached=FALSE;
1292 gchar buffer[64];
1293
1294 if (_dest.valid) {
1295         dt=calculate_distance(lat, lon, _dest.lat, _dest.lon);
1296         dh=calculate_course(lat, lon, _dest.lat, _dest.lon);
1297         cdist=dt*UNITS_CONVERT[_units];
1298
1299         g_snprintf(buffer, sizeof(buffer), "%.02f %s (%0.02f)", cdist, UNITS_TEXT[_units], dh<0 ? 360+dh : dh);
1300         gtk_label_set_label(GTK_LABEL(info_banner.distance), buffer);
1301
1302         if (dt<0.005 && dest_reached==FALSE) {
1303                 if (_center_mode>0)
1304                         announce_destination_reached();
1305                 dest_reached=TRUE;
1306         } else if (dt<prev_dt-KM10KNOTS) {
1307                 if (_center_mode>0 && _announce_destination==TRUE)
1308                         announce_distance_to_destination(cdist, UNITS_TEXT[_units], KM10KNOTS);
1309                 prev_dt=dt;
1310         } else if (dt>prev_dt+KM10KNOTS/4) {
1311                 prev_dt=dt;
1312         }
1313         if (dt>0.05) {
1314                 dest_reached=FALSE;
1315         }
1316         g_debug("%f (Prev:%f)\n", prev_dt, dt);
1317 } else {
1318         dest_reached=FALSE;
1319         prev_dt=99999.0;
1320         gtk_label_set_label(GTK_LABEL(info_banner.distance), "");
1321 }
1322
1323 gtk_compass_set_dest_heading(_gps_compass, _dest.valid, (gfloat)dh);
1324 gtk_compass_set_dest_heading(_tab_compass, _dest.valid, (gfloat)dh);
1325
1326 if (_next_way && _next_way->point) {
1327         gdouble wp_lat, wp_lon;
1328         gfloat wc;
1329
1330         unit2latlon(_next_way->point->unitx,_next_way->point->unity, wp_lat, wp_lon);
1331         wc=calculate_course(lat, lon, wp_lat, wp_lon);
1332         gtk_compass_set_way_heading(_gps_compass, TRUE, wc);
1333         gtk_compass_set_way_heading(_tab_compass, TRUE, wc);
1334 } else {
1335         gtk_compass_set_way_heading(_gps_compass, FALSE, 0);
1336         gtk_compass_set_way_heading(_tab_compass, FALSE, 0);
1337 }
1338
1339 }
1340
1341 /**
1342  * Query the OSM database for where we are.
1343  *
1344  * XXX: This is the wrong place for this function.
1345  */
1346 static void
1347 map_update_location(gdouble lat, gdouble lon, gboolean force)
1348 {
1349 gint ilat, ilon;
1350 static gboolean inp=FALSE;
1351
1352 /* We run the gtk mainloop in progress callback so we can be called again, we don't like that */
1353 if (inp==TRUE) {
1354         g_debug("LOC: Query in progress");
1355         return;
1356 }
1357 inp=TRUE;
1358
1359 ilat=lat2mp_int(lat);
1360 ilon=lon2mp_int(lon);
1361
1362 if (_gps->data.fix>1 && !force)
1363         osm_set_way_range_from_speed(_gps->data.speed);
1364 else
1365         osm_set_way_range(2800);
1366
1367 map_update_destination(lat, lon);
1368
1369 if (osm_check_location(&map_loc, ilat, ilon)==FALSE) {
1370         osm_progress_set_widget(_db, _progress_item);
1371         osm_get_location_data(ilat, ilon, _gps->data.heading, &map_loc);
1372         if (map_loc.valid)
1373                 map_set_place_information(map_loc.street, map_loc.primary, map_loc.secondary);
1374         else
1375                 map_set_place_information(NULL, NULL, NULL);
1376         osm_progress_set_widget(_db, NULL);
1377 } else g_debug("IN PLACE");
1378
1379 inp=FALSE;
1380 }
1381
1382 /**
1383  * Mouse scroller zoom in/out callback
1384  */
1385 static gboolean
1386 map_cb_scroll_event(GtkWidget * widget, GdkEventScroll * event)
1387 {
1388 if (event->direction == GDK_SCROLL_UP) {
1389         map_center_unit(x2unit((gint) (event->x + 0.5)), y2unit((gint) (event->y + 0.5)));
1390         map_set_zoom(_zoom - 1);
1391 } else if (event->direction == GDK_SCROLL_DOWN) {
1392         map_center_unit(x2unit((gint) (event->x + 0.5)), y2unit((gint) (event->y + 0.5)));
1393         map_set_zoom(_zoom + 1);
1394 }
1395 return FALSE;
1396 }
1397
1398 /**
1399  * Start map drag operation
1400  */
1401 static void
1402 map_drag_start(gint x,gint y)
1403 {
1404 press[0] = x;
1405 press[1] = y;
1406 before[0] = press[0];
1407 before[1] = press[1];
1408 _center_mode=CENTER_MANUAL;
1409 if (map_drag_id!=0)
1410         g_signal_handler_disconnect(G_OBJECT(_map_widget), map_drag_id);
1411 map_dragged=FALSE;
1412 map_drag_id=g_signal_connect(G_OBJECT(_map_widget), "motion_notify_event", G_CALLBACK(map_follow_move_cb), NULL);
1413 }
1414
1415 /**
1416  * Stop map drag operation
1417  */
1418 static void
1419 map_drag_stop(gint x, gint y)
1420 {
1421 if (map_drag_id==0)
1422         return;
1423
1424 g_signal_handler_disconnect(G_OBJECT(_map_widget), map_drag_id);
1425
1426 release[0]=x;
1427 release[1]=y;
1428 press[0]=0;
1429 press[1]=0;
1430 release[0]=0;
1431 release[1]=0;
1432 before[0]=0;
1433 before[1]=0;
1434 map_drag_id=0;
1435 if (map_dragged==TRUE)
1436         map_force_redraw();
1437 }
1438
1439 /* Workaround hildon content menu problem */
1440 static gboolean
1441 map_cb_show_poi_info_dialog(gpointer data)
1442 {
1443 guint poi_id=GPOINTER_TO_INT(data);
1444 if (poi_info_dialog(_window, poi_id)==FALSE)
1445         g_printerr("Huh? Failed to display info dialog\n");
1446 return FALSE;
1447 }
1448
1449 static gboolean
1450 map_cb_button_press(GtkWidget *widget, GdkEventButton *event)
1451 {
1452 _cmenu_position_x = event->x + 0.5;
1453 _cmenu_position_y = event->y + 0.5;
1454
1455 /* Handle map panning using clicks, use thumb on tablets and middle button on non-tablets */
1456 #if defined(WITH_HILDON_NEW)
1457 if (hildon_helper_event_button_is_finger(event)) {
1458         g_debug("Thumb down");
1459 #else
1460 if (event->button==2) {
1461 #endif
1462         gint pns=0, pew=0;
1463         if (event->x<MAP_THUMB_MARGIN_X)
1464                 pns=-PAN_UNITS;
1465         else if (event->x>(_screen_width_pixels-MAP_THUMB_MARGIN_X))
1466                 pns=PAN_UNITS;
1467
1468         if (event->y<MAP_THUMB_MARGIN_Y)
1469                 pew=-PAN_UNITS;
1470         else if (event->y>(_screen_height_pixels-MAP_THUMB_MARGIN_Y))
1471                 pew=PAN_UNITS;
1472
1473         if (pns!=0 || pew!=0) {
1474                 map_pan(pns, pew);
1475                 return FALSE;
1476         }
1477 }
1478
1479 switch (event->button) {
1480 case 1:
1481         if (event->type==GDK_2BUTTON_PRESS) {
1482                 map_center_unit(x2unit((gint) (event->x + 0.5)), y2unit((gint) (event->y + 0.5)));
1483 #ifdef MAP_ZOOM_ON_DOUBLE_CLICK
1484                 map_set_zoom(_zoom-1);
1485 #endif
1486                 map_data_needs_refresh=TRUE;
1487                 map_drag_stop(event->x, event->y);
1488                 return FALSE;
1489         }
1490         if (event->type==GDK_3BUTTON_PRESS) {
1491                 map_drag_stop(event->x, event->y);
1492                 return FALSE;
1493         }
1494
1495         map_drag_start(event->x, event->y);
1496         return FALSE;
1497 break;
1498 case 2:
1499         map_set_zoom(_zoom - 1);
1500 break;
1501 case 3:
1502 #ifndef WITH_HILDON
1503         gtk_menu_popup(GTK_MENU(_menu_map), NULL, NULL, NULL, NULL, event->button, gtk_get_current_event_time());
1504 #endif
1505 break;
1506 }
1507 /* Return FALSE to allow context menu to work. */
1508 return FALSE;
1509 }
1510
1511 static gboolean
1512 map_cb_button_release(GtkWidget *widget, GdkEventButton *event)
1513 {
1514 gdouble lat, lon;
1515 guint poi_id;
1516 gint ux, uy;
1517
1518 #if defined(WITH_HILDON_NEW)
1519 if (hildon_helper_event_button_is_finger(event)) {
1520         g_debug("Thumb up");
1521         return FALSE;
1522 }
1523 #endif
1524
1525 switch (event->button) {
1526 case 1:
1527         if (_center_mode>0)
1528                 set_action_activate("autocenter_none", TRUE);
1529
1530         switch (map_mode) {
1531         case MAP_MODE_DRAW_TRACK:
1532                 map_draw_track(event->x, event->y);
1533         break;
1534         case MAP_MODE_DRAW_ROUTE:
1535                 map_draw_route(event->x, event->y);
1536         break;
1537         case MAP_MODE_SET_ROUTE_FROM:
1538         case MAP_MODE_SET_ROUTE_POINT:
1539         case MAP_MODE_SET_ROUTE_TO:
1540         break;
1541         default:
1542                 ux=x2unit(_cmenu_position_x);
1543                 uy=y2unit(_cmenu_position_y);
1544
1545                 unit2latlon(ux, uy, lat, lon);
1546                 if (map_poi_find_at_latlon(lat, lon, &poi_id)==TRUE) {
1547                         g_idle_add_full(G_PRIORITY_HIGH_IDLE,(GSourceFunc)map_cb_show_poi_info_dialog, GINT_TO_POINTER(poi_id), NULL);
1548                 }
1549                 if (map_data_needs_refresh==TRUE) {
1550                         map_data_needs_refresh=FALSE;
1551                         map_render_data();
1552                         g_idle_add_full(G_PRIORITY_HIGH_IDLE,(GSourceFunc)map_update_location_from_center, NULL, NULL);
1553                 }
1554                 map_drag_stop(event->x, event->y);
1555         break;
1556         }
1557 break;
1558 case 2:
1559         /* */
1560 break;
1561 case 3:
1562 break;
1563 }
1564
1565 /* Return FALSE to avoid context menu (if it hasn't popped up already). */
1566 return FALSE;
1567 }
1568
1569 gboolean
1570 map_dialog_goto_latlon(void)
1571 {
1572 GtkWidget *dialog;
1573 GtkWidget *table;
1574 GtkWidget *label;
1575 GtkWidget *txt_lat;
1576 GtkWidget *txt_lon;
1577
1578 dialog = gtk_dialog_new_with_buttons(_("Go to Lat/Lon"),
1579                      GTK_WINDOW(_window),
1580                      GTK_DIALOG_MODAL, GTK_STOCK_OK,
1581                      GTK_RESPONSE_ACCEPT,
1582                      GTK_STOCK_CANCEL,
1583                      GTK_RESPONSE_REJECT, NULL);
1584
1585 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), table = gtk_table_new(2, 3, FALSE), TRUE, TRUE, 0);
1586
1587 gtk_table_attach(GTK_TABLE(table), label = gtk_label_new(_("Latitude")),0, 1, 0, 1, GTK_FILL, 0, 2, 4);
1588 gtk_misc_set_alignment(GTK_MISC(label), 1.f, 0.5f);
1589
1590 gtk_table_attach(GTK_TABLE(table), txt_lat = gtk_entry_new(), 1, 2, 0, 1, GTK_FILL, 0, 2, 4);
1591 gtk_misc_set_alignment(GTK_MISC(label), 0.0f, 0.5f);
1592
1593 gtk_table_attach(GTK_TABLE(table), label = gtk_label_new(_("Longitude")), 0, 1, 1, 2, GTK_FILL, 0, 2, 4);
1594 gtk_misc_set_alignment(GTK_MISC(label), 1.f, 0.5f);
1595
1596 gtk_table_attach(GTK_TABLE(table), txt_lon = gtk_entry_new(), 1, 2, 1, 2, GTK_FILL, 0, 2, 4);
1597 gtk_misc_set_alignment(GTK_MISC(label), 0.0f, 0.5f);
1598
1599 #if defined (WITH_DEVICE_770) && !defined(WITH_HILDON_NEW)
1600 g_object_set(G_OBJECT(txt_lat), HILDON_INPUT_MODE_HINT, HILDON_INPUT_MODE_HINT_NUMERICSPECIAL, NULL);
1601 g_object_set(G_OBJECT(txt_lon), HILDON_INPUT_MODE_HINT, HILDON_INPUT_MODE_HINT_NUMERICSPECIAL, NULL);
1602 #endif
1603
1604 /* Initialize with the current center position. */
1605 {
1606         gchar buffer[32];
1607         gdouble lat, lon;
1608         unit2latlon(_center.unitx, _center.unity, lat, lon);
1609         g_snprintf(buffer, sizeof(buffer), "%.06f", lat);
1610         gtk_label_set_text(GTK_LABEL(txt_lat), buffer);
1611         g_snprintf(buffer, sizeof(buffer), "%.06f", lon);
1612         gtk_label_set_text(GTK_LABEL(txt_lon), buffer);
1613 }
1614
1615 gtk_widget_show_all(dialog);
1616
1617 while (GTK_RESPONSE_ACCEPT == gtk_dialog_run(GTK_DIALOG(dialog))) {
1618         const gchar *text;
1619         gchar *error_check;
1620         gdouble lat, lon;
1621         guint unitx, unity;
1622
1623         text = gtk_entry_get_text(GTK_ENTRY(txt_lat));
1624         lat = strtof(text, &error_check);
1625         if (text == error_check || lat < -90.f || lat > 90.f) {
1626                 popup_error(dialog, _("Invalid Latitude"));
1627                 continue;
1628         }
1629
1630         text = gtk_entry_get_text(GTK_ENTRY(txt_lon));
1631         lon = strtof(text, &error_check);
1632         if (text == error_check || lon < -180.f || lon > 180.f) {
1633                 popup_error(dialog, _("Invalid Longitude"));
1634                 continue;
1635         }
1636
1637         latlon2unit(lat, lon, unitx, unity);
1638         if (_center_mode > 0)
1639                 set_action_activate("autocenter_none", TRUE);
1640
1641         map_center_unit(unitx, unity);
1642         break;
1643 }
1644 gtk_widget_destroy(dialog);
1645 return TRUE;
1646 }
1647