src/bar_gps.c

   1 /*
   2  * Copyright (C) 2004 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: Colin Clark
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "main.h"
  23 #ifdef HAVE_LIBCHAMPLAIN
  24 #ifdef HAVE_LIBCHAMPLAIN_GTK
  25
  26 #include "bar_gps.h"
  27
  28 #include "bar.h"
  29 #include "filedata.h"
  30 #include "layout.h"
  31 #include "metadata.h"
  32 #include "menu.h"
  33 #include "rcfile.h"
  34 #include "thumb.h"
  35 #include "ui_menu.h"
  36
  37 #include <clutter-gtk/clutter-gtk.h>
  38 #include <champlain/champlain.h>
  39 #include <champlain-gtk/champlain-gtk.h>
  40
  41 #define MARKER_COLOUR 0x00, 0x00, 0xff, 0xff
  42 #define TEXT_COLOUR 0x00, 0x00, 0x00, 0xff
  43 #define THUMB_COLOUR 0xff, 0xff, 0xff, 0xff
  44 #define THUMB_SIZE 100
  45
  46 #define DIRECTION_SIZE 300
  47
  48 /*
  49  *-------------------------------------------------------------------
  50  * GPS Map utils
  51  *-------------------------------------------------------------------
  52  */
  53
  54 typedef struct _PaneGPSData PaneGPSData;
  55 struct _PaneGPSData
  56 {
  57         PaneData pane;
  58         GtkWidget *widget;
  59         gchar *map_source;
  60         gint height;
  61         FileData *fd;
  62         ClutterActor *gps_view;
  63         ChamplainMarkerLayer *icon_layer;
  64         GList *selection_list;
  65         GList *not_added;
  66         ChamplainBoundingBox *bbox;
  67         guint num_added;
  68         guint create_markers_id;
  69         GtkWidget *progress;
  70         GtkWidget *slider;
  71         GtkWidget *state;
  72         gint selection_count;
  73         gboolean centre_map_checked;
  74         gboolean enable_markers_checked;
  75 };
  76
  77 static gboolean bar_gps_draw_direction (ClutterCanvas *canvas,
  78                                 cairo_t *cr, gpointer data)
  79 {
  80         cairo_set_source_rgb(cr, 255, 0, 0);
  81
  82         cairo_set_line_width(cr, 2);
  83         cairo_move_to(cr, 0, 1);
  84         cairo_line_to(cr, DIRECTION_SIZE, 1);
  85
  86         cairo_stroke(cr);
  87
  88         return TRUE;
  89 }
  90
  91 static void bar_pane_gps_thumb_done_cb(ThumbLoader *tl, gpointer data)
  92 {
  93         FileData *fd;
  94         ClutterActor *marker;
  95         ClutterActor *actor;
  96
  97         marker = CLUTTER_ACTOR(data);
  98         fd = g_object_get_data(G_OBJECT(marker), "file_fd");
  99         if (fd->thumb_pixbuf != NULL)
 100                 {
 101                 actor = gtk_clutter_texture_new();
 102                 gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(actor), fd->thumb_pixbuf, NULL);
 103                 champlain_label_set_image(CHAMPLAIN_LABEL(marker), actor);
 104                 }
 105         thumb_loader_free(tl);
 106 }
 107
 108 static void bar_pane_gps_thumb_error_cb(ThumbLoader *tl, gpointer data)
 109 {
 110         thumb_loader_free(tl);
 111 }
 112
 113 static gboolean bar_pane_gps_marker_keypress_cb(GtkWidget *widget, ClutterButtonEvent *bevent, gpointer data)
 114 {
 115         //PaneGPSData *pgd = data;
 116         FileData *fd;
 117         ClutterActor *label_marker, *parent_marker;
 118         ClutterColor marker_colour = { MARKER_COLOUR };
 119         ClutterColor text_colour = { TEXT_COLOUR };
 120         ClutterColor thumb_colour = { THUMB_COLOUR };
 121         gchar *current_text;
 122         ClutterActor *actor, *direction;
 123         ClutterActor *current_image;
 124         GString *text;
 125         gint height, width, rotate;
 126         gchar *altitude = NULL;
 127         ThumbLoader *tl;
 128
 129         if (bevent->button == MOUSE_BUTTON_LEFT)
 130                 {
 131                 label_marker = CLUTTER_ACTOR(widget);
 132                 fd = g_object_get_data(G_OBJECT(label_marker), "file_fd");
 133
 134                 /* If the marker is showing a thumbnail, delete it
 135                  */
 136                 current_image = champlain_label_get_image(CHAMPLAIN_LABEL(label_marker));
 137                 if (current_image != NULL)
 138                         {
 139                         clutter_actor_destroy(CLUTTER_ACTOR(current_image));
 140                         champlain_label_set_image(CHAMPLAIN_LABEL(label_marker), NULL);
 141                         }
 142
 143                 current_text = g_strdup(champlain_label_get_text(CHAMPLAIN_LABEL(label_marker)));
 144
 145                 /* If the marker is showing only the text character, replace it with a
 146                  * thumbnail and date and altitude
 147                  */
 148                 if (g_strcmp0(current_text, "i") == 0)
 149                         {
 150                         /* If a thumbail has already been generated, use that. If not try the pixbuf of the full image.
 151                          * If not, call the thumb_loader to generate a thumbnail and update the marker later in the
 152                          * thumb_loader callback
 153                          */
 154                          if (fd->thumb_pixbuf != NULL)
 155                                 {
 156                                 actor = gtk_clutter_texture_new();
 157                                 gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(actor), fd->thumb_pixbuf, NULL);
 158                                 champlain_label_set_image(CHAMPLAIN_LABEL(label_marker), actor);
 159                                 }
 160                         else if (fd->pixbuf != NULL)
 161                                 {
 162                                 actor = gtk_clutter_texture_new();
 163                                 width = gdk_pixbuf_get_width (fd->pixbuf);
 164                                 height = gdk_pixbuf_get_height (fd->pixbuf);
 165                                 switch (fd->exif_orientation)
 166                                         {
 167                                         case 8:
 168                                                 rotate = GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE;
 169                                                 break;
 170                                         case 3:
 171                                                 rotate = GDK_PIXBUF_ROTATE_UPSIDEDOWN;
 172                                                 break;
 173                                         case 6:
 174                                                 rotate = GDK_PIXBUF_ROTATE_CLOCKWISE;
 175                                                 break;
 176                                         default:
 177                                                 rotate = GDK_PIXBUF_ROTATE_NONE;
 178                                         }
 179
 180                                         gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(actor),
 181                                                                                 gdk_pixbuf_rotate_simple(gdk_pixbuf_scale_simple(fd->pixbuf, THUMB_SIZE, height * THUMB_SIZE / width,
 182                                                                                 GDK_INTERP_NEAREST), rotate), NULL);
 183                                         champlain_label_set_image(CHAMPLAIN_LABEL(label_marker), actor);
 184                                 }
 185                         else
 186                                 {
 187                                 tl = thumb_loader_new(THUMB_SIZE, THUMB_SIZE);
 188                                 thumb_loader_set_callbacks(tl,
 189                                                                                         bar_pane_gps_thumb_done_cb,
 190                                                                                         bar_pane_gps_thumb_error_cb,
 191                                                                                         NULL,
 192                                                                                         label_marker);
 193                                 thumb_loader_start(tl, fd);
 194                                 }
 195
 196                         text = g_string_new(fd->name);
 197                         g_string_append(text, "\n");
 198                         g_string_append(text, text_from_time(fd->date));
 199                         g_string_append(text, "\n");
 200                         altitude = metadata_read_string(fd, "formatted.GPSAltitude", METADATA_FORMATTED);
 201                         if (altitude != NULL)
 202                                 {
 203                                 g_string_append(text, altitude);
 204                                 }
 205
 206                         champlain_label_set_text(CHAMPLAIN_LABEL(label_marker), text->str);
 207                         champlain_label_set_font_name(CHAMPLAIN_LABEL(label_marker), "sans 8");
 208                         champlain_marker_set_selection_color(&thumb_colour);
 209                         champlain_marker_set_selection_text_color(&text_colour);
 210
 211                         g_free(altitude);
 212                         g_string_free(text, TRUE);
 213
 214                         parent_marker = clutter_actor_get_parent(label_marker);
 215                         direction = clutter_actor_get_child_at_index(parent_marker, 0);
 216                         clutter_actor_set_opacity(direction, 255);
 217                         }
 218                 /* otherwise, revert to the hidden text marker
 219                  */
 220                 else
 221                         {
 222                         champlain_label_set_text(CHAMPLAIN_LABEL(label_marker), "i");
 223                         champlain_label_set_font_name(CHAMPLAIN_LABEL(label_marker), "courier 5");
 224                         champlain_marker_set_selection_color(&marker_colour);
 225                         champlain_marker_set_selection_text_color(&marker_colour);
 226
 227                         parent_marker = clutter_actor_get_parent(label_marker);
 228                         direction = clutter_actor_get_child_at_index(parent_marker, 0);
 229                         clutter_actor_set_opacity(direction, 0);
 230                         }
 231
 232                 g_free(current_text);
 233
 234                 return TRUE;
 235                 }
 236         return TRUE;
 237 }
 238
 239 static gboolean bar_pane_gps_create_markers_cb(gpointer data)
 240 {
 241         PaneGPSData *pgd = data;
 242         gdouble latitude;
 243         gdouble longitude;
 244         gdouble compass;
 245         FileData *fd;
 246         ClutterActor *parent_marker, *label_marker;
 247         ClutterActor *direction;
 248         ClutterColor marker_colour = { MARKER_COLOUR };
 249         ClutterColor thumb_colour = { THUMB_COLOUR };
 250         GString *message;
 251         ClutterContent *canvas;
 252
 253         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(pgd->progress),
 254                                                         (gdouble)(pgd->selection_count - g_list_length(pgd->not_added)) /
 255                                                         (gdouble)pgd->selection_count);
 256
 257         message = g_string_new("");
 258         g_string_printf(message, "%i/%i", (pgd->selection_count - g_list_length(pgd->not_added)),
 259                                                                                                                                                         pgd->selection_count);
 260         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(pgd->progress), message->str);
 261         g_string_free(message, TRUE);
 262
 263         if(pgd->not_added)
 264                 {
 265                 fd = pgd->not_added->data;
 266                 pgd->not_added = pgd->not_added->next;
 267
 268                 latitude = metadata_read_GPS_coord(fd, "Xmp.exif.GPSLatitude", 0);
 269                 longitude = metadata_read_GPS_coord(fd, "Xmp.exif.GPSLongitude", 0);
 270                 compass = metadata_read_GPS_direction(fd, "Xmp.exif.GPSImgDirection", 1000);
 271
 272                 if (!(latitude == 0 && longitude == 0))
 273                         {
 274                         pgd->num_added++;
 275
 276                         parent_marker = champlain_marker_new();
 277                         clutter_actor_set_reactive(parent_marker, FALSE);
 278                         label_marker = champlain_label_new_with_text("i","courier 5", &marker_colour, &marker_colour);
 279                         clutter_actor_set_reactive(label_marker, TRUE);
 280                         champlain_marker_set_selection_color(&thumb_colour);
 281
 282                         if (compass != 1000)
 283                                 {
 284                                 canvas = clutter_canvas_new();
 285                                 clutter_canvas_set_size(CLUTTER_CANVAS (canvas), DIRECTION_SIZE, 3);
 286                                 g_signal_connect(canvas, "draw", G_CALLBACK(bar_gps_draw_direction), NULL);
 287                                 direction = clutter_actor_new();
 288                                 clutter_actor_set_size(direction, DIRECTION_SIZE, 3);
 289                                 clutter_actor_set_position(direction, 0, 0);
 290                                 clutter_actor_set_rotation_angle(direction, CLUTTER_Z_AXIS, compass -90.00);
 291                                 clutter_actor_set_content(direction, canvas);
 292                                 clutter_content_invalidate(canvas);
 293                                 g_object_unref(canvas);
 294
 295                                 clutter_actor_add_child(parent_marker, direction);
 296                                 clutter_actor_set_opacity(direction, 0);
 297                                 }
 298
 299                         clutter_actor_add_child(parent_marker, label_marker);
 300
 301                         champlain_location_set_location(CHAMPLAIN_LOCATION(parent_marker), latitude, longitude);
 302                         champlain_marker_layer_add_marker(pgd->icon_layer, CHAMPLAIN_MARKER(parent_marker));
 303
 304                         g_signal_connect(G_OBJECT(label_marker), "button_release_event",
 305                                         G_CALLBACK(bar_pane_gps_marker_keypress_cb), pgd);
 306
 307                         g_object_set_data(G_OBJECT(label_marker), "file_fd", fd);
 308
 309                         champlain_bounding_box_extend(pgd->bbox, latitude, longitude);
 310
 311                         }
 312                 return TRUE;
 313                 }
 314
 315         if (pgd->centre_map_checked)
 316                 {
 317                 if (pgd->num_added == 1)
 318                         {
 319                         champlain_bounding_box_get_center(pgd->bbox, &latitude, &longitude);
 320                         champlain_view_go_to(CHAMPLAIN_VIEW(pgd->gps_view), latitude, longitude);
 321                         }
 322                  else if (pgd->num_added > 1)
 323                         {
 324                         champlain_view_ensure_visible(CHAMPLAIN_VIEW(pgd->gps_view), pgd->bbox, TRUE);
 325                         }
 326                 }
 327         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(pgd->progress), 0);
 328         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(pgd->progress), NULL);
 329         pgd->create_markers_id = 0;
 330
 331         return FALSE;
 332 }
 333
 334 static void bar_pane_gps_update(PaneGPSData *pgd)
 335 {
 336         GList *list;
 337
 338         /* The widget does not have a parent during bar_pane_gps_new, so calling gtk_widget_show_all there gives a
 339          * "Gtk-CRITICAL **: gtk_widget_realize: assertion `GTK_WIDGET_ANCHORED (widget) || GTK_IS_INVISIBLE (widget)' failed"
 340          * error. gtk_widget_show_all can be given after it has been added to the bar.
 341          */
 342         if (gtk_widget_get_parent(pgd->widget) != NULL)
 343                 gtk_widget_show_all(pgd->widget);
 344
 345         /* If a create-marker background process is running, kill it
 346          * and start again
 347          */
 348         if (pgd->create_markers_id != 0)
 349                 {
 350                 if (g_idle_remove_by_data(pgd))
 351                         {
 352                         pgd->create_markers_id = 0;
 353                         }
 354                 else
 355                         {
 356                         return;
 357                         }
 358                 }
 359
 360         /* Delete any markers currently displayed
 361          */
 362
 363         champlain_marker_layer_remove_all(pgd->icon_layer);
 364
 365         if (!pgd->enable_markers_checked)
 366                 {
 367                 return;
 368                 }
 369
 370         /* For each selected photo that has GPS data, create a marker containing
 371          * a single, small text character the same colour as the marker background.
 372          * Use a background process in case the user selects a large number of files.
 373          */
 374         filelist_free(pgd->selection_list);
 375         if (pgd->bbox) champlain_bounding_box_free(pgd->bbox);
 376
 377         list = layout_selection_list(pgd->pane.lw);
 378         list = file_data_process_groups_in_selection(list, FALSE, NULL);
 379
 380         pgd->selection_list = list;
 381         pgd->not_added = list;
 382
 383         pgd->bbox = champlain_bounding_box_new();
 384         pgd->selection_count = g_list_length(pgd->selection_list);
 385         pgd->create_markers_id = g_idle_add(bar_pane_gps_create_markers_cb, pgd);
 386         pgd->num_added = 0;
 387 }
 388
 389 void bar_pane_gps_set_map_source(PaneGPSData *pgd, const gchar *map_id)
 390 {
 391         ChamplainMapSource *map_source;
 392         ChamplainMapSourceFactory *map_factory;
 393
 394         map_factory = champlain_map_source_factory_dup_default();
 395         map_source = champlain_map_source_factory_create(map_factory, map_id);
 396
 397         if (map_source != NULL)
 398                 {
 399                 g_object_set(G_OBJECT(pgd->gps_view), "map-source", map_source, NULL);
 400                 }
 401
 402         g_object_unref(map_factory);
 403 }
 404
 405 void bar_pane_gps_enable_markers_checked_toggle_cb(GtkWidget *menu_widget, gpointer data)
 406 {
 407         PaneGPSData *pgd = data;
 408
 409         if (pgd->enable_markers_checked)
 410                 {
 411                 pgd->enable_markers_checked = FALSE;
 412                 }
 413         else
 414                 {
 415                 pgd->enable_markers_checked = TRUE;
 416                 }
 417 }
 418
 419 static void bar_pane_gps_centre_map_checked_toggle_cb(GtkWidget *menu_widget, gpointer data)
 420 {
 421         PaneGPSData *pgd = data;
 422
 423         if (pgd->centre_map_checked)
 424                 {
 425                 pgd->centre_map_checked = FALSE;
 426                 }
 427         else
 428                 {
 429                 pgd->centre_map_checked = TRUE;
 430                 }
 431 }
 432
 433 static void bar_pane_gps_change_map_cb(GtkWidget *widget, gpointer data)
 434 {
 435         PaneGPSData *pgd = data;
 436         gchar *mapsource;
 437
 438         if (!gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(widget)))
 439                 return;
 440
 441         if (!pgd) return;
 442
 443         mapsource = g_object_get_data(G_OBJECT(widget), "menu_item_radio_data");
 444         bar_pane_gps_set_map_source(pgd, mapsource);
 445 }
 446
 447 static void bar_pane_gps_notify_selection(GtkWidget *bar, gint count)
 448 {
 449         PaneGPSData *pgd;
 450
 451         if (count == 0) return;
 452
 453         pgd = g_object_get_data(G_OBJECT(bar), "pane_data");
 454         if (!pgd) return;
 455
 456         bar_pane_gps_update(pgd);
 457 }
 458
 459 static void bar_pane_gps_set_fd(GtkWidget *bar, FileData *fd)
 460 {
 461         PaneGPSData *pgd;
 462
 463         pgd = g_object_get_data(G_OBJECT(bar), "pane_data");
 464         if (!pgd) return;
 465
 466         file_data_unref(pgd->fd);
 467         pgd->fd = file_data_ref(fd);
 468
 469         bar_pane_gps_update(pgd);
 470 }
 471
 472 static gint bar_pane_gps_event(GtkWidget *bar, GdkEvent *event)
 473 {
 474         PaneGPSData *pgd;
 475
 476         pgd = g_object_get_data(G_OBJECT(bar), "pane_data");
 477         if (!pgd) return FALSE;
 478
 479         if (gtk_widget_has_focus(pgd->widget)) return gtk_widget_event(GTK_WIDGET(pgd->widget), event);
 480
 481         return FALSE;
 482 }
 483
 484 static void bar_pane_gps_write_config(GtkWidget *pane, GString *outstr, gint indent)
 485 {
 486         PaneGPSData *pgd;
 487         gint zoom;
 488         ChamplainMapSource *mapsource;
 489         const gchar *map_id;
 490         gchar *str = NULL;
 491         GString *buffer = g_string_new(str);
 492         gdouble position;
 493         gint int_position;
 494
 495         pgd = g_object_get_data(G_OBJECT(pane), "pane_data");
 496         if (!pgd) return;
 497
 498         WRITE_NL();
 499         WRITE_STRING("<pane_gps ");
 500         write_char_option(outstr, indent, "id", pgd->pane.id);
 501         write_char_option(outstr, indent, "title", gtk_label_get_text(GTK_LABEL(pgd->pane.title)));
 502         WRITE_BOOL(pgd->pane, expanded);
 503         WRITE_INT(*pgd, height);
 504         indent++;
 505
 506         g_object_get(G_OBJECT(pgd->gps_view), "map-source", &mapsource, NULL);
 507         map_id = champlain_map_source_get_id(mapsource);
 508         WRITE_NL();
 509         write_char_option(outstr, indent, "map-id", map_id);
 510
 511         g_object_get(G_OBJECT(pgd->gps_view), "zoom-level", &zoom, NULL);
 512         g_string_printf(buffer, "%d", zoom);
 513         WRITE_NL();
 514         write_char_option(outstr, indent, "zoom-level", buffer->str);
 515
 516         g_object_get(G_OBJECT(pgd->gps_view), "latitude", &position, NULL);
 517         int_position = position * 1000000;
 518         g_string_printf(buffer, "%i", int_position);
 519         WRITE_NL();
 520         write_char_option(outstr, indent, "latitude", buffer->str);
 521
 522         g_object_get(G_OBJECT(pgd->gps_view), "longitude", &position, NULL);
 523         int_position = position * 1000000;
 524         g_string_printf(buffer, "%i", int_position);
 525         WRITE_NL();
 526         write_char_option(outstr, indent, "longitude", buffer->str);
 527
 528         indent--;
 529         WRITE_NL();
 530         WRITE_STRING("/>");
 531
 532   g_object_unref(mapsource);
 533
 534 }
 535
 536 static void bar_pane_gps_slider_changed_cb(GtkScaleButton *slider,
 537                                            gdouble zoom,
 538                                            gpointer data)
 539 {
 540         PaneGPSData *pgd = data;
 541         GString *message;
 542
 543         message = g_string_new("");
 544         g_string_printf(message, _("Zoom %i"), (gint)zoom);
 545
 546         g_object_set(G_OBJECT(CHAMPLAIN_VIEW(pgd->gps_view)), "zoom-level", (gint)zoom, NULL);
 547         gtk_widget_set_tooltip_text(GTK_WIDGET(slider), message->str);
 548         g_string_free(message, TRUE);
 549
 550 }
 551 static void bar_pane_gps_view_state_changed_cb(ChamplainView *view,
 552                                                GParamSpec *gobject,
 553                                                gpointer data)
 554 {
 555         PaneGPSData *pgd = data;
 556         ChamplainState status;
 557         gint zoom;
 558         GString *message;
 559
 560         g_object_get(G_OBJECT(view), "zoom-level", &zoom, NULL);
 561         message = g_string_new("");
 562         g_string_printf(message, _("Zoom level %i"), zoom);
 563
 564         g_object_get(G_OBJECT(view), "state", &status, NULL);
 565         if (status == CHAMPLAIN_STATE_LOADING)
 566                 {
 567                 gtk_label_set_text(GTK_LABEL(pgd->state), _("Loading map"));
 568                 }
 569         else
 570                 {
 571                 gtk_label_set_text(GTK_LABEL(pgd->state), message->str);
 572                 }
 573
 574         gtk_widget_set_tooltip_text(GTK_WIDGET(pgd->slider), message->str);
 575         gtk_scale_button_set_value(GTK_SCALE_BUTTON(pgd->slider), (gdouble)zoom);
 576
 577         g_string_free(message, TRUE);
 578 }
 579
 580 static void bar_pane_gps_notify_cb(FileData *fd, NotifyType type, gpointer data)
 581 {
 582         PaneGPSData *pgd = data;
 583
 584         if ((type & (NOTIFY_REREAD | NOTIFY_CHANGE | NOTIFY_METADATA)) &&
 585             g_list_find(pgd->selection_list, fd))
 586                 {
 587                 bar_pane_gps_update(pgd);
 588                 }
 589 }
 590
 591 const gchar *bar_pane_gps_get_map_id(PaneGPSData *pgd)
 592 {
 593         const gchar *map_id;
 594         ChamplainMapSource *mapsource;
 595
 596         g_object_get(G_OBJECT(pgd->gps_view), "map-source", &mapsource, NULL);
 597         map_id = champlain_map_source_get_id(mapsource);
 598
 599         g_object_unref(mapsource);
 600
 601         return map_id;
 602 }
 603
 604 static GtkWidget *bar_pane_gps_menu(PaneGPSData *pgd)
 605 {
 606         GtkWidget *menu;
 607         GtkWidget *map_centre;
 608         ChamplainMapSourceFactory *map_factory;
 609         GSList *map_list;
 610         ChamplainMapSourceDesc *map_desc;
 611         const gchar *current;
 612
 613         menu = popup_menu_short_lived();
 614
 615         map_factory = champlain_map_source_factory_dup_default();
 616         map_list = champlain_map_source_factory_get_registered(map_factory);
 617         current = bar_pane_gps_get_map_id(pgd);
 618
 619         while (map_list)
 620                 {
 621                 map_desc = (ChamplainMapSourceDesc *)(map_list->data);
 622
 623                 menu_item_add_radio(menu,
 624                                     champlain_map_source_desc_get_name(map_desc),
 625                                     (gpointer)champlain_map_source_desc_get_id(map_desc),
 626                                     strcmp(champlain_map_source_desc_get_id(map_desc), current) == 0,
 627                                     G_CALLBACK(bar_pane_gps_change_map_cb), pgd);
 628
 629                 map_list = g_slist_next(map_list);
 630                 }
 631
 632         menu_item_add_divider(menu);
 633         menu_item_add_check(menu, _("Enable markers"), pgd->enable_markers_checked,
 634                             G_CALLBACK(bar_pane_gps_enable_markers_checked_toggle_cb), pgd);
 635         map_centre = menu_item_add_check(menu, _("Centre map on marker"), pgd->centre_map_checked,
 636                                          G_CALLBACK(bar_pane_gps_centre_map_checked_toggle_cb), pgd);
 637         if (!pgd->enable_markers_checked)
 638                 {
 639                 gtk_widget_set_sensitive(map_centre, FALSE);
 640                 }
 641
 642         g_slist_free(map_list);
 643         g_object_unref(map_factory);
 644
 645         return menu;
 646 }
 647
 648 /* Determine if the map is to be re-centred on the marker when another photo is selected
 649  */
 650 void bar_pane_gps_map_centreing(PaneGPSData *pgd)
 651 {
 652         GtkWidget *dialog;
 653         GString *message = g_string_new("");
 654
 655         if (pgd->centre_map_checked)
 656                 {
 657                 message = g_string_append(message, _("Move map centre to marker\n is disabled"));
 658                 pgd->centre_map_checked = FALSE;
 659                 }
 660         else
 661                 {
 662                 message = g_string_append(message, _("Move map centre to marker\n is enabled"));
 663                 pgd->centre_map_checked = TRUE;
 664                 }
 665
 666         dialog = gtk_message_dialog_new(NULL,
 667                                                           GTK_DIALOG_DESTROY_WITH_PARENT,
 668                                                           GTK_MESSAGE_INFO,
 669                                                           GTK_BUTTONS_CLOSE,
 670                                                           "%s", message->str);
 671         gtk_window_set_title(GTK_WINDOW(dialog), _("Map Centreing"));
 672         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_MOUSE);
 673         gtk_dialog_run(GTK_DIALOG(dialog));
 674
 675         gtk_widget_destroy(dialog);
 676         g_string_free(message, TRUE);
 677 }
 678
 679 static gboolean bar_pane_gps_map_keypress_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
 680 {
 681         PaneGPSData *pgd = data;
 682         GtkWidget *menu;
 683         GtkClipboard *clipboard;
 684         gchar *geo_coords;
 685
 686         if (bevent->button == MOUSE_BUTTON_RIGHT)
 687                 {
 688                 menu = bar_pane_gps_menu(pgd);
 689                 gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, bevent->button, bevent->time);
 690                 return TRUE;
 691                 }
 692         else if (bevent->button == MOUSE_BUTTON_MIDDLE)
 693                 {
 694                 bar_pane_gps_map_centreing(pgd);
 695                 return TRUE;
 696                 }
 697         else if (bevent->button == MOUSE_BUTTON_LEFT)
 698                 {
 699                 clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 700                 geo_coords = g_strdup_printf("%lf %lf",
 701                                                         champlain_view_y_to_latitude(
 702                                                                 CHAMPLAIN_VIEW(pgd->gps_view),bevent->y),
 703                                                         champlain_view_x_to_longitude(
 704                                                                 CHAMPLAIN_VIEW(pgd->gps_view),bevent->x));
 705                 gtk_clipboard_set_text(clipboard, geo_coords, -1);
 706
 707                 g_free(geo_coords);
 708
 709                 return TRUE;
 710                 }
 711         else
 712                 {
 713                 return FALSE;
 714                 }
 715 }
 716
 717 static void bar_pane_gps_destroy(GtkWidget *widget, gpointer data)
 718 {
 719         PaneGPSData *pgd = data;
 720
 721         file_data_unregister_notify_func(bar_pane_gps_notify_cb, pgd);
 722
 723         g_idle_remove_by_data(pgd);
 724
 725         filelist_free(pgd->selection_list);
 726         if (pgd->bbox) champlain_bounding_box_free(pgd->bbox);
 727
 728         file_data_unref(pgd->fd);
 729         g_free(pgd->map_source);
 730         g_free(pgd->pane.id);
 731         clutter_actor_destroy(pgd->gps_view);
 732         g_free(pgd);
 733 }
 734
 735
 736 GtkWidget *bar_pane_gps_new(const gchar *id, const gchar *title, const gchar *map_id,
 737                                                 const gint zoom, const gdouble latitude, const gdouble longitude,
 738                                         gboolean expanded, gint height)
 739 {
 740         PaneGPSData *pgd;
 741         GtkWidget *vbox, *frame;
 742         GtkWidget *gpswidget;
 743         GtkWidget *status, *state, *progress, *slider;
 744         ChamplainMarkerLayer *layer;
 745         ChamplainView *view;
 746         const gchar *slider_list[] = {"zoom-in", "zoom-out", NULL};
 747         const gchar **slider_icons = slider_list;
 748
 749         pgd = g_new0(PaneGPSData, 1);
 750
 751         pgd->pane.pane_set_fd = bar_pane_gps_set_fd;
 752         pgd->pane.pane_notify_selection = bar_pane_gps_notify_selection;
 753         pgd->pane.pane_event = bar_pane_gps_event;
 754         pgd->pane.pane_write_config = bar_pane_gps_write_config;
 755         pgd->pane.title = bar_pane_expander_title(title);
 756         pgd->pane.id = g_strdup(id);
 757         pgd->pane.type = PANE_GPS;
 758         pgd->pane.expanded = expanded;
 759         pgd->height = height;
 760
 761         frame = gtk_frame_new(NULL);
 762         vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 763
 764         gpswidget = gtk_champlain_embed_new();
 765         view = gtk_champlain_embed_get_view(GTK_CHAMPLAIN_EMBED(gpswidget));
 766
 767         gtk_box_pack_start(GTK_BOX(vbox), gpswidget, TRUE, TRUE, 0);
 768         gtk_container_add(GTK_CONTAINER(frame), vbox);
 769
 770         status = gtk_box_new(GTK_ORIENTATION_HORIZONTAL,0);
 771         slider = gtk_scale_button_new(GTK_ICON_SIZE_SMALL_TOOLBAR, 1, 17, 1, slider_icons);
 772         gtk_widget_set_tooltip_text(slider, "Zoom");
 773         gtk_scale_button_set_value(GTK_SCALE_BUTTON(slider), (gdouble)zoom);
 774
 775         progress = gtk_progress_bar_new();
 776 #if GTK_CHECK_VERSION(3,0,0)
 777         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress), "");
 778         gtk_progress_bar_set_show_text(GTK_PROGRESS_BAR(progress), TRUE);
 779 #endif
 780         state = gtk_label_new("");
 781         gtk_label_set_justify(GTK_LABEL(state), GTK_JUSTIFY_CENTER);
 782
 783         gtk_box_pack_start(GTK_BOX(status), GTK_WIDGET(slider), FALSE, FALSE, 0);
 784         gtk_box_pack_start(GTK_BOX(status), GTK_WIDGET(state), FALSE, FALSE, 5);
 785         gtk_box_pack_end(GTK_BOX(status), GTK_WIDGET(progress), FALSE, FALSE, 0);
 786         gtk_box_pack_end(GTK_BOX(vbox),GTK_WIDGET(status), FALSE, FALSE, 0);
 787
 788         layer = champlain_marker_layer_new();
 789         champlain_view_add_layer(view, CHAMPLAIN_LAYER(layer));
 790
 791         pgd->icon_layer = layer;
 792         pgd->gps_view = CLUTTER_ACTOR(view);
 793         pgd->widget = frame;
 794         pgd->progress = progress;
 795         pgd->slider = slider;
 796         pgd->state = state;
 797
 798         bar_pane_gps_set_map_source(pgd, map_id);
 799
 800         g_object_set(G_OBJECT(view), "kinetic-mode", TRUE,
 801                                      "zoom-level", zoom,
 802                                      "keep-center-on-resize", TRUE,
 803                                      "deceleration", 1.1,
 804                                      "zoom-on-double-click", FALSE,
 805                                      "max-zoom-level", 17,
 806                                      "min-zoom-level", 1,
 807                                      NULL);
 808         champlain_view_center_on(view, latitude, longitude);
 809         pgd->centre_map_checked = TRUE;
 810         g_object_set_data(G_OBJECT(pgd->widget), "pane_data", pgd);
 811         g_signal_connect(G_OBJECT(pgd->widget), "destroy", G_CALLBACK(bar_pane_gps_destroy), pgd);
 812
 813         gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_IN);
 814
 815         gtk_widget_set_size_request(pgd->widget, -1, height);
 816
 817         g_signal_connect(G_OBJECT(gpswidget), "button_press_event", G_CALLBACK(bar_pane_gps_map_keypress_cb), pgd);
 818         g_signal_connect(pgd->gps_view, "notify::state", G_CALLBACK(bar_pane_gps_view_state_changed_cb), pgd);
 819         g_signal_connect(pgd->gps_view, "notify::zoom-level", G_CALLBACK(bar_pane_gps_view_state_changed_cb), pgd);
 820         g_signal_connect(G_OBJECT(slider), "value-changed", G_CALLBACK(bar_pane_gps_slider_changed_cb), pgd);
 821
 822         file_data_register_notify_func(bar_pane_gps_notify_cb, pgd, NOTIFY_PRIORITY_LOW);
 823
 824         pgd->create_markers_id = 0;
 825         pgd->enable_markers_checked = TRUE;
 826         pgd->centre_map_checked = TRUE;
 827
 828         return pgd->widget;
 829 }
 830
 831 GtkWidget *bar_pane_gps_new_from_config(const gchar **attribute_names, const gchar **attribute_values)
 832 {
 833         gchar *title = g_strdup(_("GPS Map"));
 834         gchar *map_id = NULL;
 835         gboolean expanded = TRUE;
 836         gint height = 350;
 837         gint zoom = 7;
 838         gdouble latitude;
 839         gdouble longitude;
 840         /* Latitude and longitude are stored in the config file as an integer of
 841          * (actual value * 1,000,000). There is no READ_DOUBLE utilty function.
 842          */
 843         gint int_latitude = 54000000;
 844         gint int_longitude = -4000000;
 845         gchar *id = g_strdup("gps");
 846         GtkWidget *ret;
 847
 848         while (*attribute_names)
 849                 {
 850                 const gchar *option = *attribute_names++;
 851                 const gchar *value = *attribute_values++;
 852
 853                 if (READ_CHAR_FULL("title", title))
 854                         continue;
 855                 if (READ_CHAR_FULL("map-id", map_id))
 856                         continue;
 857                 if (READ_INT_CLAMP_FULL("zoom-level", zoom, 1, 20))
 858                         continue;
 859                 if (READ_INT_CLAMP_FULL("latitude", int_latitude, -90000000, +90000000))
 860                         continue;
 861                 if (READ_INT_CLAMP_FULL("longitude", int_longitude, -90000000, +90000000))
 862                         continue;
 863                 if (READ_BOOL_FULL("expanded", expanded))
 864                         continue;
 865                 if (READ_INT_FULL("height", height))
 866                         continue;
 867                 if (READ_CHAR_FULL("id", id))
 868                         continue;
 869
 870                 log_printf("unknown attribute %s = %s\n", option, value);
 871                 }
 872
 873         bar_pane_translate_title(PANE_COMMENT, id, &title);
 874         latitude = int_latitude / 1000000;
 875         longitude = int_longitude / 1000000;
 876         ret = bar_pane_gps_new(id, title, map_id, zoom, latitude, longitude, expanded, height);
 877         g_free(title);
 878         g_free(map_id);
 879         g_free(id);
 880         return ret;
 881 }
 882
 883 void bar_pane_gps_update_from_config(GtkWidget *pane, const gchar **attribute_names,
 884                                                                                 const gchar **attribute_values)
 885 {
 886         PaneGPSData *pgd;
 887         gint zoom;
 888         gint int_longitude, int_latitude;
 889         gdouble longitude, latitude;
 890
 891         pgd = g_object_get_data(G_OBJECT(pane), "pane_data");
 892         if (!pgd)
 893                 return;
 894
 895         gchar *title = NULL;
 896
 897         while (*attribute_names)
 898         {
 899                 const gchar *option = *attribute_names++;
 900                 const gchar *value = *attribute_values++;
 901
 902                 if (READ_CHAR_FULL("title", title))
 903                         continue;
 904                 if (READ_CHAR_FULL("map-id", pgd->map_source))
 905                         continue;
 906                 if (READ_BOOL_FULL("expanded", pgd->pane.expanded))
 907                         continue;
 908                 if (READ_INT_FULL("height", pgd->height))
 909                         continue;
 910                 if (READ_CHAR_FULL("id", pgd->pane.id))
 911                         continue;
 912                 if (READ_INT_CLAMP_FULL("zoom-level", zoom, 1, 8))
 913                         {
 914                         g_object_set(G_OBJECT(CHAMPLAIN_VIEW(pgd->gps_view)), "zoom-level", zoom, NULL);
 915                         continue;
 916                         }
 917                 if (READ_INT_CLAMP_FULL("longitude", int_longitude, -90000000, +90000000))
 918                         {
 919                         longitude = int_longitude / 1000000;
 920                         g_object_set(G_OBJECT(CHAMPLAIN_VIEW(pgd->gps_view)), "longitude", longitude, NULL);
 921                         continue;
 922                         }
 923                 if (READ_INT_CLAMP_FULL("latitude", int_latitude, -90000000, +90000000))
 924                         {
 925                         latitude = int_latitude / 1000000;
 926                         g_object_set(G_OBJECT(CHAMPLAIN_VIEW(pgd->gps_view)), "latitude", latitude, NULL);
 927                         continue;
 928                         }
 929                 log_printf("unknown attribute %s = %s\n", option, value);
 930         }
 931
 932         if (title)
 933                 {
 934                 bar_pane_translate_title(PANE_COMMENT, pgd->pane.id, &title);
 935                 gtk_label_set_text(GTK_LABEL(pgd->pane.title), title);
 936                 g_free(title);
 937                 }
 938
 939         gtk_widget_set_size_request(pgd->widget, -1, pgd->height);
 940         bar_update_expander(pane);
 941 }
 942
 943 #endif
 944 #endif
 945
 946 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */