src/viklayerspanel.c

   1 /*
   2  * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
   3  *
   4  * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25
  26 #include "viking.h"
  27
  28 #include <string.h>
  29
  30 #include <glib/gi18n.h>
  31
  32 enum {
  33   VLP_UPDATE_SIGNAL,
  34   VLP_LAST_SIGNAL
  35 };
  36
  37 static void layers_panel_class_init ( VikLayersPanelClass *klass );
  38 static void layers_panel_init ( VikLayersPanel *vlp );
  39 static void layers_item_edited (VikLayersPanel *vlp, GtkTreeIter *iter, const gchar *new_text);
  40 static void layers_item_toggled (VikLayersPanel *vlp, GtkTreeIter *iter);
  41
  42 static guint layers_panel_signals[VLP_LAST_SIGNAL] = { 0 };
  43
  44 static GObjectClass *parent_class;
  45
  46 struct _VikLayersPanel {
  47   GtkVBox vbox;
  48
  49   VikAggregateLayer *toplayer;
  50   GtkTreeIter toplayer_iter;
  51
  52   VikTreeview *vt;
  53   VikViewport *vvp; /* reference */
  54
  55   GtkItemFactory *popup_factory;
  56 };
  57
  58 static GtkItemFactoryEntry base_entries[] = {
  59  { N_("/C_ut"), NULL, (GtkItemFactoryCallback) vik_layers_panel_cut_selected, -1, "<StockItem>", GTK_STOCK_CUT },
  60  { N_("/_Copy"), NULL, (GtkItemFactoryCallback) vik_layers_panel_copy_selected, -1, "<StockItem>", GTK_STOCK_COPY },
  61  { N_("/_Paste"), NULL, (GtkItemFactoryCallback) vik_layers_panel_paste_selected, -1, "<StockItem>", GTK_STOCK_PASTE },
  62  { N_("/_Delete"), NULL, (GtkItemFactoryCallback) vik_layers_panel_delete_selected, -1, "<StockItem>", GTK_STOCK_DELETE },
  63  { N_("/New Layer"), NULL, NULL, -1, "<Branch>" },
  64 };
  65
  66 #define NUM_BASE_ENTRIES (sizeof(base_entries)/sizeof(base_entries[0]))
  67
  68 static void layers_item_toggled (VikLayersPanel *vlp, GtkTreeIter *iter);
  69 static void layers_item_edited (VikLayersPanel *vlp, GtkTreeIter *iter, const gchar *new_text);
  70 static void menu_popup_cb (VikLayersPanel *vlp);
  71 static void layers_popup_cb (VikLayersPanel *vlp);
  72 static void layers_popup ( VikLayersPanel *vlp, GtkTreeIter *iter, gint mouse_button );
  73 static gboolean layers_button_press_cb (VikLayersPanel *vlp, GdkEventButton *event);
  74 static void layers_move_item ( VikLayersPanel *vlp, gboolean up );
  75 static void layers_move_item_up ( VikLayersPanel *vlp );
  76 static void layers_move_item_down ( VikLayersPanel *vlp );
  77 static void layers_panel_finalize ( GObject *gob );
  78
  79 GType vik_layers_panel_get_type()
  80 {
  81   static GType vlp_type = 0;
  82
  83   if (!vlp_type)
  84   {
  85     static const GTypeInfo vlp_info =
  86     {
  87       sizeof (VikLayersPanelClass),
  88       NULL, /* base_init */
  89       NULL, /* base_finalize */
  90       (GClassInitFunc) layers_panel_class_init,
  91       NULL, /* class_finalize */
  92       NULL, /* class_data */
  93       sizeof (VikLayersPanel),
  94       0,
  95       (GInstanceInitFunc) layers_panel_init,
  96     };
  97     vlp_type = g_type_register_static ( GTK_TYPE_VBOX, "VikLayersPanel", &vlp_info, 0 );
  98   }
  99
 100   return vlp_type;
 101 }
 102
 103 static void layers_panel_class_init ( VikLayersPanelClass *klass )
 104 {
 105   GObjectClass *object_class;
 106
 107   object_class = G_OBJECT_CLASS (klass);
 108
 109   object_class->finalize = layers_panel_finalize;
 110
 111   parent_class = g_type_class_peek_parent (klass);
 112
 113   layers_panel_signals[VLP_UPDATE_SIGNAL] = g_signal_new ( "update", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (VikLayersPanelClass, update), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
 114 }
 115
 116 VikLayersPanel *vik_layers_panel_new ()
 117 {
 118   return VIK_LAYERS_PANEL ( g_object_new ( VIK_LAYERS_PANEL_TYPE, NULL ) );
 119 }
 120
 121 void vik_layers_panel_set_viewport ( VikLayersPanel *vlp, VikViewport *vvp )
 122 {
 123   vlp->vvp = vvp;
 124   /* TODO: also update GCs (?) */
 125 }
 126
 127 VikViewport *vik_layers_panel_get_viewport ( VikLayersPanel *vlp )
 128 {
 129   return vlp->vvp;
 130 }
 131
 132 static void layers_panel_init ( VikLayersPanel *vlp )
 133 {
 134   GtkWidget *hbox;
 135   GtkWidget *addbutton, *addimage;
 136   GtkWidget *removebutton, *removeimage;
 137   GtkWidget *upbutton, *upimage;
 138   GtkWidget *downbutton, *downimage;
 139   GtkWidget *cutbutton, *cutimage;
 140   GtkWidget *copybutton, *copyimage;
 141   GtkWidget *pastebutton, *pasteimage;
 142   GtkWidget *scrolledwindow;
 143   GtkItemFactoryEntry entry;
 144   guint i, tmp;
 145
 146   vlp->vvp = NULL;
 147
 148   hbox = gtk_hbox_new ( TRUE, 2 );
 149   vlp->vt = vik_treeview_new ( );
 150
 151   vlp->toplayer = vik_aggregate_layer_new ();
 152   vik_layer_rename ( VIK_LAYER(vlp->toplayer), _("Top Layer"));
 153   g_signal_connect_swapped ( G_OBJECT(vlp->toplayer), "update", G_CALLBACK(vik_layers_panel_emit_update), vlp );
 154
 155   vik_treeview_add_layer ( vlp->vt, NULL, &(vlp->toplayer_iter), VIK_LAYER(vlp->toplayer)->name, NULL, vlp->toplayer, VIK_LAYER_AGGREGATE, VIK_LAYER_AGGREGATE );
 156   vik_layer_realize ( VIK_LAYER(vlp->toplayer), vlp->vt, &(vlp->toplayer_iter) );
 157
 158   g_signal_connect_swapped ( vlp->vt, "popup_menu", G_CALLBACK(menu_popup_cb), vlp);
 159   g_signal_connect_swapped ( vlp->vt, "button_press_event", G_CALLBACK(layers_button_press_cb), vlp);
 160   g_signal_connect_swapped ( vlp->vt, "item_toggled", G_CALLBACK(layers_item_toggled), vlp);
 161   g_signal_connect_swapped ( vlp->vt, "item_edited", G_CALLBACK(layers_item_edited), vlp);
 162
 163   /* Add button */
 164   addimage = gtk_image_new_from_stock ( GTK_STOCK_ADD, GTK_ICON_SIZE_SMALL_TOOLBAR );
 165   addbutton = gtk_button_new ( );
 166   gtk_container_add ( GTK_CONTAINER(addbutton), addimage );
 167   gtk_box_pack_start ( GTK_BOX(hbox), addbutton, TRUE, TRUE, 0 );
 168   g_signal_connect_swapped ( G_OBJECT(addbutton), "clicked", G_CALLBACK(layers_popup_cb), vlp );
 169   /* Remove button */
 170   removeimage = gtk_image_new_from_stock ( GTK_STOCK_REMOVE, GTK_ICON_SIZE_SMALL_TOOLBAR );
 171   removebutton = gtk_button_new ( );
 172   gtk_container_add ( GTK_CONTAINER(removebutton), removeimage );
 173   gtk_box_pack_start ( GTK_BOX(hbox), removebutton, TRUE, TRUE, 0 );
 174   g_signal_connect_swapped ( G_OBJECT(removebutton), "clicked", G_CALLBACK(vik_layers_panel_delete_selected), vlp );
 175   /* Up button */
 176   upimage = gtk_image_new_from_stock ( GTK_STOCK_GO_UP, GTK_ICON_SIZE_SMALL_TOOLBAR );
 177   upbutton = gtk_button_new ( );
 178   gtk_container_add ( GTK_CONTAINER(upbutton), upimage );
 179   gtk_box_pack_start ( GTK_BOX(hbox), upbutton, TRUE, TRUE, 0 );
 180   g_signal_connect_swapped ( G_OBJECT(upbutton), "clicked", G_CALLBACK(layers_move_item_up), vlp );
 181   /* Down button */
 182   downimage = gtk_image_new_from_stock ( GTK_STOCK_GO_DOWN, GTK_ICON_SIZE_SMALL_TOOLBAR );
 183   downbutton = gtk_button_new ( );
 184   gtk_container_add ( GTK_CONTAINER(downbutton), downimage );
 185   gtk_box_pack_start ( GTK_BOX(hbox), downbutton, TRUE, TRUE, 0 );
 186   g_signal_connect_swapped ( G_OBJECT(downbutton), "clicked", G_CALLBACK(layers_move_item_down), vlp );
 187   /* Cut button */
 188   cutimage = gtk_image_new_from_stock ( GTK_STOCK_CUT, GTK_ICON_SIZE_SMALL_TOOLBAR );
 189   cutbutton = gtk_button_new ( );
 190   gtk_container_add ( GTK_CONTAINER(cutbutton), cutimage );
 191   gtk_box_pack_start ( GTK_BOX(hbox), cutbutton, TRUE, TRUE, 0 );
 192   g_signal_connect_swapped ( G_OBJECT(cutbutton), "clicked", G_CALLBACK(vik_layers_panel_cut_selected), vlp );
 193   /* Copy button */
 194   copyimage = gtk_image_new_from_stock ( GTK_STOCK_COPY, GTK_ICON_SIZE_SMALL_TOOLBAR );
 195   copybutton = gtk_button_new ( );
 196   gtk_container_add ( GTK_CONTAINER(copybutton), copyimage );
 197   gtk_box_pack_start ( GTK_BOX(hbox), copybutton, TRUE, TRUE, 0 );
 198   g_signal_connect_swapped ( G_OBJECT(copybutton), "clicked", G_CALLBACK(vik_layers_panel_copy_selected), vlp );
 199   /* Paste button */
 200   pasteimage = gtk_image_new_from_stock ( GTK_STOCK_PASTE, GTK_ICON_SIZE_SMALL_TOOLBAR );
 201   pastebutton = gtk_button_new ( );
 202   gtk_container_add ( GTK_CONTAINER(pastebutton),pasteimage );
 203   gtk_box_pack_start ( GTK_BOX(hbox), pastebutton, TRUE, TRUE, 0 );
 204   g_signal_connect_swapped ( G_OBJECT(pastebutton), "clicked", G_CALLBACK(vik_layers_panel_paste_selected), vlp );
 205
 206   scrolledwindow = gtk_scrolled_window_new ( NULL, NULL );
 207   gtk_scrolled_window_set_policy ( GTK_SCROLLED_WINDOW(scrolledwindow), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC );
 208   gtk_container_add ( GTK_CONTAINER(scrolledwindow), GTK_WIDGET(vlp->vt) );
 209
 210   gtk_box_pack_start ( GTK_BOX(vlp), scrolledwindow, TRUE, TRUE, 0 );
 211   gtk_box_pack_start ( GTK_BOX(vlp), hbox, FALSE, FALSE, 0 );
 212
 213   vlp->popup_factory = gtk_item_factory_new ( GTK_TYPE_MENU, "<main>", NULL );
 214   gtk_item_factory_create_items ( vlp->popup_factory, NUM_BASE_ENTRIES, base_entries, vlp );
 215   for ( i = 0; i < VIK_LAYER_NUM_TYPES; i++ )
 216   {
 217     /* TODO: FIXME: if name has a '/' in it it will get all messed up. why not have an itemfactory field with
 218                     name, icon, shortcut, etc.? */
 219     entry.path = g_strdup_printf("%s/New %s Layer", base_entries[NUM_BASE_ENTRIES-1].path, vik_layer_get_interface(i)->name );
 220     entry.accelerator = NULL;
 221     entry.callback = (GtkItemFactoryCallback) vik_layers_panel_new_layer;
 222     entry.callback_action = i;
 223     if ( vik_layer_get_interface(i)->icon )
 224     {
 225       entry.item_type = "<ImageItem>";
 226       entry.extra_data = gdk_pixdata_serialize ( vik_layer_get_interface(i)->icon, &tmp );
 227     }
 228     else
 229       entry.item_type = "<Item>";
 230
 231     gtk_item_factory_create_item ( vlp->popup_factory, &entry, vlp, 1 );
 232     g_free ( (gpointer) entry.extra_data );
 233     g_free ( entry.path );
 234   }
 235 }
 236
 237 void vik_layers_panel_emit_update ( VikLayersPanel *vlp )
 238 {
 239   g_signal_emit ( G_OBJECT(vlp), layers_panel_signals[VLP_UPDATE_SIGNAL], 0 );
 240 }
 241
 242 static void layers_item_toggled (VikLayersPanel *vlp, GtkTreeIter *iter)
 243 {
 244   gboolean visible;
 245   gpointer p;
 246   gint type;
 247
 248   /* get type and data */
 249   type = vik_treeview_item_get_type ( vlp->vt, iter );
 250   p = vik_treeview_item_get_pointer ( vlp->vt, iter );
 251
 252   switch ( type )
 253   {
 254     case VIK_TREEVIEW_TYPE_LAYER:
 255       visible = (VIK_LAYER(p)->visible ^= 1);
 256       vik_layer_emit_update_although_invisible ( VIK_LAYER(p) ); /* set trigger for half-drawn */
 257       break;
 258     case VIK_TREEVIEW_TYPE_SUBLAYER:
 259       visible = vik_layer_sublayer_toggle_visible ( VIK_LAYER(vik_treeview_item_get_parent(vlp->vt, iter)),
 260                                                 vik_treeview_item_get_data(vlp->vt, iter), p);
 261       vik_layer_emit_update_although_invisible ( VIK_LAYER(vik_treeview_item_get_parent(vlp->vt, iter)) );
 262       break;
 263     default: return;
 264   }
 265
 266   vik_treeview_item_set_visible ( vlp->vt, iter, visible );
 267 }
 268
 269 static void layers_item_edited (VikLayersPanel *vlp, GtkTreeIter *iter, const gchar *new_text)
 270 {
 271   if ( vik_treeview_item_get_type ( vlp->vt, iter ) == VIK_TREEVIEW_TYPE_LAYER )
 272   {
 273     VikLayer *l;
 274
 275     /* get iter and layer */
 276     l = VIK_LAYER ( vik_treeview_item_get_pointer ( vlp->vt, iter ) );
 277
 278     if ( strcmp ( l->name, new_text ) != 0 )
 279     {
 280       vik_layer_rename ( l, new_text );
 281       vik_treeview_item_set_name ( vlp->vt, iter, l->name );
 282     }
 283   }
 284   else
 285   {
 286     const gchar *name = vik_layer_sublayer_rename_request ( vik_treeview_item_get_parent ( vlp->vt, iter ), new_text, vlp, vik_treeview_item_get_data ( vlp->vt, iter ), vik_treeview_item_get_pointer ( vlp->vt, iter ), iter );
 287     if ( name )
 288       vik_treeview_item_set_name ( vlp->vt, iter, name);
 289   }
 290 }
 291
 292 static gboolean layers_button_press_cb ( VikLayersPanel *vlp, GdkEventButton *event )
 293 {
 294   if (event->button == 3)
 295   {
 296     GtkTreeIter iter;
 297     if ( vik_treeview_get_iter_at_pos ( vlp->vt, &iter, event->x, event->y ) )
 298     {
 299       layers_popup ( vlp, &iter, 3 );
 300       vik_treeview_item_select ( vlp->vt, &iter );
 301     }
 302     else
 303       layers_popup ( vlp, NULL, 3 );
 304     return TRUE;
 305   }
 306   return FALSE;
 307 }
 308
 309 static void layers_popup ( VikLayersPanel *vlp, GtkTreeIter *iter, gint mouse_button )
 310 {
 311   GtkMenu *menu = NULL;
 312
 313
 314   if ( iter )
 315   {
 316     if ( vik_treeview_item_get_type ( vlp->vt, iter ) == VIK_TREEVIEW_TYPE_LAYER )
 317     {
 318       VikLayer *layer = VIK_LAYER(vik_treeview_item_get_pointer ( vlp->vt, iter ));
 319
 320       if ( layer->type == VIK_LAYER_AGGREGATE )
 321         menu = GTK_MENU(gtk_item_factory_get_widget ( vlp->popup_factory, "<main>" ));
 322       else
 323       {
 324         GtkWidget *del, *prop;
 325         VikStdLayerMenuItem menu_selection = vik_layer_get_menu_items_selection(layer);
 326
 327         menu = GTK_MENU ( gtk_menu_new () );
 328
 329         if (menu_selection & VIK_MENU_ITEM_PROPERTY) {
 330           prop = gtk_image_menu_item_new_from_stock ( GTK_STOCK_PROPERTIES, NULL );
 331           g_signal_connect_swapped ( G_OBJECT(prop), "activate", G_CALLBACK(vik_layers_panel_properties), vlp );
 332           gtk_menu_shell_append (GTK_MENU_SHELL (menu), prop);
 333           gtk_widget_show ( prop );
 334         }
 335
 336         if (menu_selection & VIK_MENU_ITEM_CUT) {
 337           del = gtk_image_menu_item_new_from_stock ( GTK_STOCK_CUT, NULL );
 338           g_signal_connect_swapped ( G_OBJECT(del), "activate", G_CALLBACK(vik_layers_panel_cut_selected), vlp );
 339           gtk_menu_shell_append (GTK_MENU_SHELL (menu), del);
 340           gtk_widget_show ( del );
 341         }
 342
 343         if (menu_selection & VIK_MENU_ITEM_COPY) {
 344           del = gtk_image_menu_item_new_from_stock ( GTK_STOCK_COPY, NULL );
 345           g_signal_connect_swapped ( G_OBJECT(del), "activate", G_CALLBACK(vik_layers_panel_copy_selected), vlp );
 346           gtk_menu_shell_append (GTK_MENU_SHELL (menu), del);
 347           gtk_widget_show ( del );
 348         }
 349
 350         if (menu_selection & VIK_MENU_ITEM_PASTE) {
 351           del = gtk_image_menu_item_new_from_stock ( GTK_STOCK_PASTE, NULL );
 352           g_signal_connect_swapped ( G_OBJECT(del), "activate", G_CALLBACK(vik_layers_panel_paste_selected), vlp );
 353           gtk_menu_shell_append (GTK_MENU_SHELL (menu), del);
 354           gtk_widget_show ( del );
 355         }
 356
 357         if (menu_selection & VIK_MENU_ITEM_DELETE) {
 358           del = gtk_image_menu_item_new_from_stock ( GTK_STOCK_DELETE, NULL );
 359           g_signal_connect_swapped ( G_OBJECT(del), "activate", G_CALLBACK(vik_layers_panel_delete_selected), vlp );
 360           gtk_menu_shell_append (GTK_MENU_SHELL (menu), del);
 361           gtk_widget_show ( del );
 362         }
 363
 364         vik_layer_add_menu_items ( layer, menu, vlp );
 365       }
 366     }
 367     else
 368     {
 369       menu = GTK_MENU ( gtk_menu_new () );
 370       if ( ! vik_layer_sublayer_add_menu_items ( vik_treeview_item_get_parent ( vlp->vt, iter ), menu, vlp, vik_treeview_item_get_data ( vlp->vt, iter ), vik_treeview_item_get_pointer ( vlp->vt, iter ), iter ) )
 371       {
 372         gtk_widget_destroy ( GTK_WIDGET(menu) );
 373         return;
 374       }
 375       /* TODO: specific things for different types */
 376     }
 377   }
 378   else
 379     menu = GTK_MENU(gtk_item_factory_get_widget ( vlp->popup_factory, base_entries[NUM_BASE_ENTRIES-1].path ));
 380   gtk_menu_popup ( menu, NULL, NULL, NULL, NULL, mouse_button, gtk_get_current_event_time() );
 381 }
 382
 383 static void menu_popup_cb ( VikLayersPanel *vlp )
 384 {
 385   GtkTreeIter iter;
 386   layers_popup ( vlp, vik_treeview_get_selected_iter ( vlp->vt, &iter ) ? &iter : NULL, 0 );
 387 }
 388
 389 static void layers_popup_cb ( VikLayersPanel *vlp )
 390 {
 391   layers_popup ( vlp, NULL, 0 );
 392 }
 393
 394 gboolean vik_layers_panel_new_layer ( VikLayersPanel *vlp, gint type )
 395 {
 396   VikLayer *l;
 397   g_assert ( vlp->vvp );
 398   l = vik_layer_create ( type, vlp->vvp, VIK_GTK_WINDOW_FROM_WIDGET(vlp), TRUE );
 399   if ( l )
 400   {
 401     vik_layers_panel_add_layer ( vlp, l );
 402     vik_layers_panel_emit_update ( vlp );
 403     return TRUE;
 404   }
 405   return FALSE;
 406 }
 407
 408 void vik_layers_panel_add_layer ( VikLayersPanel *vlp, VikLayer *l )
 409 {
 410   GtkTreeIter iter;
 411   GtkTreeIter *replace_iter = NULL;
 412
 413   /* could be something different so we have to do this */
 414   vik_layer_change_coord_mode ( l, vik_viewport_get_coord_mode(vlp->vvp) );
 415
 416   if ( ! vik_treeview_get_selected_iter ( vlp->vt, &iter ) )
 417     vik_aggregate_layer_add_layer ( vlp->toplayer, l );
 418   else
 419   {
 420     VikAggregateLayer *addtoagg;
 421     if (vik_treeview_item_get_type ( vlp->vt, &iter ) == VIK_TREEVIEW_TYPE_LAYER )
 422     {
 423       if ( IS_VIK_AGGREGATE_LAYER(vik_treeview_item_get_pointer ( vlp->vt, &iter )) )
 424          addtoagg = VIK_AGGREGATE_LAYER(vik_treeview_item_get_pointer ( vlp->vt, &iter ));
 425       else {
 426        VikLayer *vl = VIK_LAYER(vik_treeview_item_get_parent ( vlp->vt, &iter ));
 427        while ( ! IS_VIK_AGGREGATE_LAYER(vl) ) {
 428          iter = vl->iter;
 429          vl = VIK_LAYER(vik_treeview_item_get_parent ( vlp->vt, &vl->iter ));
 430          g_assert ( vl->realized );
 431        }
 432        addtoagg = VIK_AGGREGATE_LAYER(vl);
 433        replace_iter = &iter;
 434       }
 435     }
 436     else
 437     {
 438       /* a sublayer is selected, first get its parent (layer), then find the layer's parent (aggr. layer) */
 439       VikLayer *vl = VIK_LAYER(vik_treeview_item_get_parent ( vlp->vt, &iter ));
 440       replace_iter = &(vl->iter);
 441       g_assert ( vl->realized );
 442       VikLayer *grandpa = (vik_treeview_item_get_parent ( vlp->vt, &(vl->iter) ) );
 443       if (IS_VIK_AGGREGATE_LAYER(grandpa))
 444         addtoagg = VIK_AGGREGATE_LAYER(grandpa);
 445       else {
 446         addtoagg = vlp->toplayer;
 447         replace_iter = &grandpa->iter;
 448       }
 449     }
 450     if ( replace_iter )
 451       vik_aggregate_layer_insert_layer ( addtoagg, l, replace_iter );
 452     else
 453       vik_aggregate_layer_add_layer ( addtoagg, l );
 454   }
 455 }
 456
 457 static void layers_move_item ( VikLayersPanel *vlp, gboolean up )
 458 {
 459   GtkTreeIter iter;
 460   VikAggregateLayer *parent;
 461
 462   /* TODO: deactivate the buttons and stuff */
 463   if ( ! vik_treeview_get_selected_iter ( vlp->vt, &iter ) )
 464     return;
 465
 466   vik_treeview_select_iter ( vlp->vt, &iter ); /* cancel any layer-name editing going on... */
 467
 468   if ( vik_treeview_item_get_type ( vlp->vt, &iter ) == VIK_TREEVIEW_TYPE_LAYER )
 469   {
 470     parent = VIK_AGGREGATE_LAYER(vik_treeview_item_get_parent ( vlp->vt, &iter ));
 471     if ( parent ) /* not toplevel */
 472     {
 473       vik_aggregate_layer_move_layer ( parent, &iter, up );
 474       vik_layers_panel_emit_update ( vlp );
 475     }
 476   }
 477 }
 478
 479 gboolean vik_layers_panel_properties ( VikLayersPanel *vlp )
 480 {
 481   GtkTreeIter iter;
 482   g_assert ( vlp->vvp );
 483
 484   if ( vik_treeview_get_selected_iter ( vlp->vt, &iter ) && vik_treeview_item_get_type ( vlp->vt, &iter ) == VIK_TREEVIEW_TYPE_LAYER )
 485   {
 486     if ( vik_treeview_item_get_data ( vlp->vt, &iter ) == VIK_LAYER_AGGREGATE )
 487       a_dialog_info_msg ( VIK_GTK_WINDOW_FROM_WIDGET(vlp), _("Aggregate Layers have no settable properties.") );
 488     vik_layer_properties ( VIK_LAYER( vik_treeview_item_get_pointer ( vlp->vt, &iter ) ), vlp->vvp );
 489     return TRUE;
 490   }
 491   else
 492     return FALSE;
 493 }
 494
 495 void vik_layers_panel_draw_all ( VikLayersPanel *vlp )
 496 {
 497   if ( vlp->vvp && VIK_LAYER(vlp->toplayer)->visible )
 498     vik_aggregate_layer_draw ( vlp->toplayer, vlp->vvp );
 499 }
 500
 501 void vik_layers_panel_draw_all_using_viewport ( VikLayersPanel *vlp, VikViewport *vvp )
 502 {
 503   if ( vlp->vvp && VIK_LAYER(vlp->toplayer)->visible )
 504     vik_aggregate_layer_draw ( vlp->toplayer, vvp );
 505 }
 506
 507 void vik_layers_panel_cut_selected ( VikLayersPanel *vlp )
 508 {
 509   gint type;
 510   GtkTreeIter iter;
 511
 512   g_return_if_fail ( vik_treeview_get_selected_iter ( vlp->vt, &iter ) );
 513
 514   type = vik_treeview_item_get_type ( vlp->vt, &iter );
 515
 516   if ( type == VIK_TREEVIEW_TYPE_LAYER )
 517   {
 518     VikAggregateLayer *parent = vik_treeview_item_get_parent ( vlp->vt, &iter );
 519
 520     if ( parent )
 521     {
 522
 523       /* reset trigger if trigger deleted */
 524       if ( vik_layers_panel_get_selected ( vlp ) == vik_viewport_get_trigger ( vlp->vvp ) )
 525         vik_viewport_set_trigger ( vlp->vvp, NULL );
 526
 527       a_clipboard_copy_selected ( vlp );
 528       if ( vik_aggregate_layer_delete ( parent, &iter ) )
 529         vik_layers_panel_emit_update ( vlp );
 530     }
 531     else
 532       a_dialog_info_msg ( VIK_GTK_WINDOW_FROM_WIDGET(vlp), _("You cannot cut the Top Layer.") );
 533   }
 534 }
 535
 536 void vik_layers_panel_copy_selected ( VikLayersPanel *vlp )
 537 {
 538   gint type;
 539   GtkTreeIter iter;
 540
 541   g_return_if_fail ( vik_treeview_get_selected_iter ( vlp->vt, &iter ) );
 542
 543   type = vik_treeview_item_get_type ( vlp->vt, &iter );
 544
 545   if ( type == VIK_TREEVIEW_TYPE_LAYER ) {
 546     a_clipboard_copy_selected ( vlp );
 547   }
 548 }
 549
 550 void vik_layers_panel_paste_selected ( VikLayersPanel *vlp )
 551 {
 552   GtkTreeIter iter;
 553   g_return_if_fail ( vik_treeview_get_selected_iter ( vlp->vt, &iter ) );
 554   a_clipboard_paste ( vlp );
 555 }
 556
 557 void vik_layers_panel_delete_selected ( VikLayersPanel *vlp )
 558 {
 559   gint type;
 560   GtkTreeIter iter;
 561
 562   g_return_if_fail ( vik_treeview_get_selected_iter ( vlp->vt, &iter ) );
 563
 564   type = vik_treeview_item_get_type ( vlp->vt, &iter );
 565
 566   if ( type == VIK_TREEVIEW_TYPE_LAYER )
 567   {
 568     VikAggregateLayer *parent = vik_treeview_item_get_parent ( vlp->vt, &iter );
 569     if ( parent )
 570     {
 571       /* reset trigger if trigger deleted */
 572       if ( vik_layers_panel_get_selected ( vlp ) == vik_viewport_get_trigger ( vlp->vvp ) )
 573         vik_viewport_set_trigger ( vlp->vvp, NULL );
 574
 575       if (IS_VIK_AGGREGATE_LAYER(parent)) {
 576         if ( vik_aggregate_layer_delete ( parent, &iter ) )
 577           vik_layers_panel_emit_update ( vlp );
 578       }
 579     }
 580     else
 581       a_dialog_info_msg ( VIK_GTK_WINDOW_FROM_WIDGET(vlp), _("You cannot delete the Top Layer.") );
 582   }
 583   else if (type == VIK_TREEVIEW_TYPE_SUBLAYER) {
 584     VikLayer *sel = vik_layers_panel_get_selected ( vlp );
 585     if ( vik_layer_get_interface(sel->type)->delete_item ) {
 586       gint subtype = vik_treeview_item_get_data( vlp->vt, &iter);
 587       vik_layer_get_interface(sel->type)->delete_item ( sel, subtype, vik_treeview_item_get_pointer(sel->vt, &iter) );
 588     }
 589   }
 590 }
 591
 592 VikLayer *vik_layers_panel_get_selected ( VikLayersPanel *vlp )
 593 {
 594   GtkTreeIter iter, parent;
 595   gint type;
 596
 597   if ( ! vik_treeview_get_selected_iter ( vlp->vt, &iter ) )
 598     return NULL;
 599
 600   type = vik_treeview_item_get_type ( vlp->vt, &iter );
 601
 602   while ( type != VIK_TREEVIEW_TYPE_LAYER )
 603   {
 604     if ( ! vik_treeview_item_get_parent_iter ( vlp->vt, &iter, &parent ) )
 605       return NULL;
 606     iter = parent;
 607     type = vik_treeview_item_get_type ( vlp->vt, &iter );
 608   }
 609
 610   return VIK_LAYER( vik_treeview_item_get_pointer ( vlp->vt, &iter ) );
 611 }
 612
 613 static void layers_move_item_up ( VikLayersPanel *vlp )
 614 {
 615   layers_move_item ( vlp, TRUE );
 616 }
 617
 618 static void layers_move_item_down ( VikLayersPanel *vlp )
 619 {
 620   layers_move_item ( vlp, FALSE );
 621 }
 622
 623 #if 0
 624 gboolean vik_layers_panel_tool ( VikLayersPanel *vlp, guint16 layer_type, VikToolInterfaceFunc tool_func, GdkEventButton *event, VikViewport *vvp )
 625 {
 626   VikLayer *vl = vik_layers_panel_get_selected ( vlp );
 627   if ( vl && vl->type == layer_type )
 628   {
 629     tool_func ( vl, event, vvp );
 630     return TRUE;
 631   }
 632   else if ( VIK_LAYER(vlp->toplayer)->visible &&
 633       vik_aggregate_layer_tool ( vlp->toplayer, layer_type, tool_func, event, vvp ) != 1 ) /* either accepted or rejected, but a layer was found */
 634     return TRUE;
 635   return FALSE;
 636 }
 637 #endif
 638
 639 VikLayer *vik_layers_panel_get_layer_of_type ( VikLayersPanel *vlp, gint type )
 640 {
 641   VikLayer *rv = vik_layers_panel_get_selected ( vlp );
 642   if ( rv == NULL || rv->type != type )
 643     if ( VIK_LAYER(vlp->toplayer)->visible )
 644       return vik_aggregate_layer_get_top_visible_layer_of_type ( vlp->toplayer, type );
 645     else
 646       return NULL;
 647   else
 648     return rv;
 649 }
 650
 651 GList *vik_layers_panel_get_all_layers_of_type(VikLayersPanel *vlp, gint type)
 652 {
 653   GList *layers = NULL;
 654
 655   return (vik_aggregate_layer_get_all_layers_of_type ( vlp->toplayer, layers, type ));
 656 }
 657
 658 VikAggregateLayer *vik_layers_panel_get_top_layer ( VikLayersPanel *vlp )
 659 {
 660   return vlp->toplayer;
 661 }
 662
 663 void vik_layers_panel_clear ( VikLayersPanel *vlp )
 664 {
 665   if ( (! vik_aggregate_layer_is_empty(vlp->toplayer)) && a_dialog_overwrite ( VIK_GTK_WINDOW_FROM_WIDGET(vlp), _("Are you sure you wish to delete all layers?"), NULL ) )
 666     vik_aggregate_layer_clear ( vlp->toplayer ); /* simply deletes all layers */
 667 }
 668
 669 void vik_layers_panel_change_coord_mode ( VikLayersPanel *vlp, VikCoordMode mode )
 670 {
 671   vik_layer_change_coord_mode ( VIK_LAYER(vlp->toplayer), mode );
 672 }
 673
 674 static void layers_panel_finalize ( GObject *gob )
 675 {
 676   VikLayersPanel *vlp = VIK_LAYERS_PANEL ( gob );
 677   g_object_unref ( VIK_LAYER(vlp->toplayer) );
 678   g_object_unref ( G_OBJECT(vlp->popup_factory) );
 679   G_OBJECT_CLASS(parent_class)->finalize(gob);
 680 }
 681