2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
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.
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.
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
27 #include <glib/gi18n.h>
34 #define TREEVIEW_GET(model,iter,what,dest) gtk_tree_model_get(GTK_TREE_MODEL(model),(iter),(what),(dest),-1)
37 VT_ITEM_EDITED_SIGNAL,
38 VT_ITEM_TOGGLED_SIGNAL,
42 static guint treeview_signals[VT_LAST_SIGNAL] = { 0, 0 };
44 static GObjectClass *parent_class;
59 /* properties dialog, delete, rename, etc. */
67 GdkPixbuf *layer_type_icons[VIK_LAYER_NUM_TYPES];
69 gboolean was_a_toggle;
72 /* TODO: find, make "static" and put up here all non-"a_" functions */
73 static void treeview_class_init ( VikTreeviewClass *klass );
74 static void treeview_init ( VikTreeview *vt );
75 static void treeview_finalize ( GObject *gob );
76 static void treeview_add_columns ( VikTreeview *vt );
78 static gboolean treeview_drag_data_received ( GtkTreeDragDest *drag_dest, GtkTreePath *dest, GtkSelectionData *selection_data );
79 static gboolean treeview_drag_data_delete ( GtkTreeDragSource *drag_source, GtkTreePath *path );
81 GType vik_treeview_get_type (void)
83 static GType vt_type = 0;
87 static const GTypeInfo vt_info =
89 sizeof (VikTreeviewClass),
91 NULL, /* base_finalize */
92 (GClassInitFunc) treeview_class_init,
93 NULL, /* class_finalize */
94 NULL, /* class_data */
97 (GInstanceInitFunc) treeview_init,
99 vt_type = g_type_register_static ( GTK_TYPE_TREE_VIEW, "VikTreeview", &vt_info, 0 );
105 static void treeview_class_init ( VikTreeviewClass *klass )
108 GObjectClass *object_class;
110 object_class = G_OBJECT_CLASS (klass);
112 object_class->finalize = treeview_finalize;
114 parent_class = g_type_class_peek_parent (klass);
116 treeview_signals[VT_ITEM_EDITED_SIGNAL] = g_signal_new ( "item_edited", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (VikTreeviewClass, item_edited), NULL, NULL,
117 gtk_marshal_VOID__POINTER_POINTER, G_TYPE_NONE, 2, GTK_TYPE_POINTER, G_TYPE_POINTER);
118 /* VOID__UINT_POINTER: kinda hack-ish, but it works. */
120 treeview_signals[VT_ITEM_TOGGLED_SIGNAL] = g_signal_new ( "item_toggled", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (VikTreeviewClass, item_toggled), NULL, NULL,
121 g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1, GTK_TYPE_POINTER );
124 static void treeview_edited_cb (GtkCellRendererText *cell, gchar *path_str, const gchar *new_name, VikTreeview *vt)
128 /* get type and data */
129 vik_treeview_get_iter_from_path_str ( vt, &iter, path_str );
131 g_signal_emit ( G_OBJECT(vt), treeview_signals[VT_ITEM_EDITED_SIGNAL], 0, &iter, new_name );
134 static void treeview_toggled_cb (GtkCellRendererToggle *cell, gchar *path_str, VikTreeview *vt)
138 /* get type and data */
139 vik_treeview_get_iter_from_path_str ( vt, &iter, path_str );
140 vt->was_a_toggle = TRUE;
142 g_signal_emit ( G_OBJECT(vt),
143 treeview_signals[VT_ITEM_TOGGLED_SIGNAL], 0, &iter );
146 /* Inspired by GTK+ test
147 * http://git.gnome.org/browse/gtk+/tree/tests/testtooltips.c
150 treeview_tooltip_cb (GtkWidget *widget,
153 gboolean keyboard_tip,
158 GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
159 GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
160 GtkTreePath *path = NULL;
164 if (!gtk_tree_view_get_tooltip_context (tree_view, &x, &y,
166 &model, &path, &iter))
169 /* ATM normally treeview doesn't call into layers - maybe another level of redirection required? */
171 gtk_tree_model_get (model, &iter, TYPE_COLUMN, &rv, -1);
172 if ( rv == VIK_TREEVIEW_TYPE_SUBLAYER ) {
174 gtk_tree_model_get (model, &iter, ITEM_DATA_COLUMN, &rv, -1);
175 // No tooltips ATM for the immediate Tracks / Waypoints tree list
176 if ( rv == 0 || rv == 1 )
177 // VIK_TRW_LAYER_SUBLAYER_WAYPOINTS or VIK_TRW_LAYER_SUBLAYER_TRACKS
181 gtk_tree_model_get (model, &iter, ITEM_POINTER_COLUMN, &sublayer, -1);
184 gtk_tree_model_get (model, &iter, ITEM_PARENT_COLUMN, &parent, -1);
186 g_snprintf (buffer, sizeof(buffer), "%s", vik_layer_sublayer_tooltip (VIK_LAYER(parent), rv, sublayer));
188 else if ( rv == VIK_TREEVIEW_TYPE_LAYER ) {
190 gtk_tree_model_get (model, &iter, ITEM_POINTER_COLUMN, &layer, -1);
191 g_snprintf (buffer, sizeof(buffer), "%s", vik_layer_layer_tooltip (VIK_LAYER(layer)));
196 // Don't display null strings :)
197 if ( strncmp (buffer, "(null)", 6) == 0 ) {
201 gtk_tooltip_set_markup (tooltip, buffer);
204 gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
206 gtk_tree_path_free (path);
211 VikTreeview *vik_treeview_new ()
213 return VIK_TREEVIEW ( g_object_new ( VIK_TREEVIEW_TYPE, NULL ) );
216 gint vik_treeview_item_get_type ( VikTreeview *vt, GtkTreeIter *iter )
219 TREEVIEW_GET ( vt->model, iter, TYPE_COLUMN, &rv );
223 gint vik_treeview_item_get_data ( VikTreeview *vt, GtkTreeIter *iter )
226 TREEVIEW_GET ( vt->model, iter, ITEM_DATA_COLUMN, &rv );
230 gpointer vik_treeview_item_get_pointer ( VikTreeview *vt, GtkTreeIter *iter )
233 TREEVIEW_GET ( vt->model, iter, ITEM_POINTER_COLUMN, &rv );
237 void vik_treeview_item_set_pointer ( VikTreeview *vt, GtkTreeIter *iter, gpointer pointer )
239 gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, ITEM_POINTER_COLUMN, pointer, -1 );
242 gpointer vik_treeview_item_get_parent ( VikTreeview *vt, GtkTreeIter *iter )
245 TREEVIEW_GET ( vt->model, iter, ITEM_PARENT_COLUMN, &rv );
249 gboolean vik_treeview_get_iter_from_path_str ( VikTreeview *vt, GtkTreeIter *iter, const gchar *path_str )
251 return gtk_tree_model_get_iter_from_string ( GTK_TREE_MODEL(vt->model), iter, path_str );
254 static void treeview_add_columns ( VikTreeview *vt )
257 GtkCellRenderer *renderer;
258 GtkTreeViewColumn *column;
261 renderer = gtk_cell_renderer_text_new ();
262 g_signal_connect (renderer, "edited",
263 G_CALLBACK (treeview_edited_cb), vt);
265 g_object_set (G_OBJECT (renderer), "xalign", 0.0, NULL);
267 col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (vt),
271 "editable", EDITABLE_COLUMN,
274 column = gtk_tree_view_get_column (GTK_TREE_VIEW (vt), col_offset - 1);
275 gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
276 GTK_TREE_VIEW_COLUMN_AUTOSIZE);
277 gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
280 renderer = gtk_cell_renderer_pixbuf_new ();
282 g_object_set (G_OBJECT (renderer), "xalign", 0.5, NULL);
284 col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (vt),
290 column = gtk_tree_view_get_column (GTK_TREE_VIEW (vt), col_offset - 1);
291 gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
292 GTK_TREE_VIEW_COLUMN_AUTOSIZE);
295 renderer = gtk_cell_renderer_toggle_new ();
296 g_object_set (G_OBJECT (renderer), "xalign", 0.5, NULL);
298 g_signal_connect (renderer, "toggled", G_CALLBACK (treeview_toggled_cb), vt);
300 col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (vt),
311 column = gtk_tree_view_get_column (GTK_TREE_VIEW (vt), col_offset - 1);
312 gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
313 GTK_TREE_VIEW_COLUMN_AUTOSIZE);
316 g_object_set (GTK_TREE_VIEW (vt), "has-tooltip", TRUE, NULL);
317 g_signal_connect (GTK_TREE_VIEW (vt), "query-tooltip", G_CALLBACK (treeview_tooltip_cb), vt);
320 static void select_cb(GtkTreeSelection *selection, gpointer data)
322 VikTreeview *vt = data;
324 GtkTreeIter iter, parent;
328 if (!gtk_tree_selection_get_selected(selection, NULL, &iter)) return;
329 type = vik_treeview_item_get_type( vt, &iter);
331 while ( type != VIK_TREEVIEW_TYPE_LAYER ) {
332 if ( ! vik_treeview_item_get_parent_iter ( vt, &iter, &parent ) )
335 type = vik_treeview_item_get_type (vt, &iter );
338 vl = VIK_LAYER( vik_treeview_item_get_pointer ( vt, &iter ) );
340 vw = VIK_WINDOW(VIK_GTK_WINDOW_FROM_LAYER(vl));
341 vik_window_selected_layer(vw, vl);
344 static gboolean treeview_selection_filter(GtkTreeSelection *selection, GtkTreeModel *model, GtkTreePath *path, gboolean path_currently_selected, gpointer data)
346 VikTreeview *vt = data;
348 if (vt->was_a_toggle) {
349 vt->was_a_toggle = FALSE;
356 void treeview_init ( VikTreeview *vt )
360 vt->was_a_toggle = FALSE;
362 vt->model = GTK_TREE_MODEL(gtk_tree_store_new ( NUM_COLUMNS, G_TYPE_STRING, G_TYPE_BOOLEAN, GDK_TYPE_PIXBUF, G_TYPE_INT, G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_INT, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN ));
364 /* create tree view */
365 gtk_tree_selection_set_select_function(gtk_tree_view_get_selection (GTK_TREE_VIEW(vt)), treeview_selection_filter, vt, NULL);
367 gtk_tree_view_set_model ( GTK_TREE_VIEW(vt), vt->model );
368 treeview_add_columns ( vt );
369 g_object_unref (vt->model);
371 gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (vt), TRUE);
372 gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (vt)),
373 GTK_SELECTION_SINGLE);
375 /* Override treestore's dnd methods only; this is easier than deriving from GtkTreeStore.
376 * The downside is that all treestores will have this behavior, so this needs to be
377 * changed if we add more treeviews in the future. //Alex
380 GtkTreeDragSourceIface *isrc;
381 GtkTreeDragDestIface *idest;
383 isrc = g_type_interface_peek (g_type_class_peek(G_OBJECT_TYPE(vt->model)), GTK_TYPE_TREE_DRAG_SOURCE);
384 isrc->drag_data_delete = treeview_drag_data_delete;
386 idest = g_type_interface_peek (g_type_class_peek(G_OBJECT_TYPE(vt->model)), GTK_TYPE_TREE_DRAG_DEST);
387 idest->drag_data_received = treeview_drag_data_received;
390 for ( i = 0; i < VIK_LAYER_NUM_TYPES; i++ )
391 vt->layer_type_icons[i] = vik_layer_load_icon ( i ); /* if icon can't be loaded, it will be null and simply not be shown. */
393 gtk_tree_view_set_reorderable (GTK_TREE_VIEW(vt), TRUE);
394 g_signal_connect(gtk_tree_view_get_selection (GTK_TREE_VIEW (vt)), "changed",
395 G_CALLBACK(select_cb), vt);
399 gboolean vik_treeview_item_get_parent_iter ( VikTreeview *vt, GtkTreeIter *iter, GtkTreeIter *parent )
401 return gtk_tree_model_iter_parent ( GTK_TREE_MODEL(vt->model), parent, iter );
404 gboolean vik_treeview_move_item ( VikTreeview *vt, GtkTreeIter *iter, gboolean up )
406 gint t = vik_treeview_item_get_type ( vt, iter );
407 if ( t == VIK_TREEVIEW_TYPE_LAYER )
409 GtkTreeIter switch_iter;
412 /* iter to path to iter */
413 GtkTreePath *path = gtk_tree_model_get_path ( vt->model, iter );
414 if ( !gtk_tree_path_prev ( path ) || !gtk_tree_model_get_iter ( vt->model, &switch_iter, path ) )
416 gtk_tree_path_free ( path );
419 gtk_tree_path_free ( path );
424 if ( !gtk_tree_model_iter_next ( vt->model, &switch_iter ) )
427 gtk_tree_store_swap ( GTK_TREE_STORE(vt->model), iter, &switch_iter );
429 /* now, the easy part. actually switching them, not the GUI */
430 } /* if item is map */
434 gboolean vik_treeview_get_iter_at_pos ( VikTreeview *vt, GtkTreeIter *iter, gint x, gint y )
437 gtk_tree_view_get_path_at_pos ( GTK_TREE_VIEW(vt), x, y, &path, NULL, NULL, NULL );
441 gtk_tree_model_get_iter (GTK_TREE_MODEL(vt->model), iter, path);
442 gtk_tree_path_free ( path );
446 void vik_treeview_select_iter ( VikTreeview *vt, GtkTreeIter *iter )
448 gtk_tree_selection_select_iter ( gtk_tree_view_get_selection ( GTK_TREE_VIEW ( vt ) ), iter );
451 gboolean vik_treeview_get_selected_iter ( VikTreeview *vt, GtkTreeIter *iter )
453 return gtk_tree_selection_get_selected ( gtk_tree_view_get_selection ( GTK_TREE_VIEW ( vt ) ), NULL, iter );
456 void vik_treeview_item_delete ( VikTreeview *vt, GtkTreeIter *iter )
458 gtk_tree_store_remove ( GTK_TREE_STORE(vt->model), iter );
461 /* Treeview Reform Project */
463 void vik_treeview_item_set_name ( VikTreeview *vt, GtkTreeIter *iter, const gchar *to )
465 g_return_if_fail ( iter != NULL && to != NULL );
466 gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, NAME_COLUMN, to, -1);
469 void vik_treeview_item_set_visible ( VikTreeview *vt, GtkTreeIter *iter, gboolean to )
471 g_return_if_fail ( iter != NULL );
472 gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, VISIBLE_COLUMN, to, -1 );
475 void vik_treeview_expand ( VikTreeview *vt, GtkTreeIter *iter )
478 path = gtk_tree_model_get_path ( vt->model, iter );
479 gtk_tree_view_expand_row ( GTK_TREE_VIEW(vt), path, FALSE );
480 gtk_tree_path_free ( path );
483 void vik_treeview_item_select ( VikTreeview *vt, GtkTreeIter *iter )
485 gtk_tree_selection_select_iter ( gtk_tree_view_get_selection ( GTK_TREE_VIEW ( vt ) ), iter );
488 void vik_treeview_add_layer ( VikTreeview *vt, GtkTreeIter *parent_iter, GtkTreeIter *iter, const gchar *name, gpointer parent,
489 gpointer item, gint data, gint icon_type )
491 g_assert ( iter != NULL );
492 g_assert ( icon_type < VIK_LAYER_NUM_TYPES );
493 gtk_tree_store_prepend ( GTK_TREE_STORE(vt->model), iter, parent_iter );
494 gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, NAME_COLUMN, name, VISIBLE_COLUMN, TRUE,
495 TYPE_COLUMN, VIK_TREEVIEW_TYPE_LAYER, ITEM_PARENT_COLUMN, parent, ITEM_POINTER_COLUMN, item,
496 ITEM_DATA_COLUMN, data, HAS_VISIBLE_COLUMN, TRUE, EDITABLE_COLUMN, TRUE,
497 ICON_COLUMN, icon_type >= 0 ? vt->layer_type_icons[icon_type] : NULL, -1 );
500 void vik_treeview_insert_layer ( VikTreeview *vt, GtkTreeIter *parent_iter, GtkTreeIter *iter, const gchar *name, gpointer parent,
501 gpointer item, gint data, gint icon_type, GtkTreeIter *sibling )
503 g_assert ( iter != NULL );
504 g_assert ( icon_type < VIK_LAYER_NUM_TYPES );
506 gtk_tree_store_insert_before ( GTK_TREE_STORE(vt->model), iter, parent_iter, sibling );
508 gtk_tree_store_append ( GTK_TREE_STORE(vt->model), iter, parent_iter );
511 gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, NAME_COLUMN, name, VISIBLE_COLUMN, TRUE,
512 TYPE_COLUMN, VIK_TREEVIEW_TYPE_LAYER, ITEM_PARENT_COLUMN, parent, ITEM_POINTER_COLUMN, item,
513 ITEM_DATA_COLUMN, data, HAS_VISIBLE_COLUMN, TRUE, EDITABLE_COLUMN, TRUE,
514 ICON_COLUMN, icon_type >= 0 ? vt->layer_type_icons[icon_type] : NULL, -1 );
517 void vik_treeview_add_sublayer ( VikTreeview *vt, GtkTreeIter *parent_iter, GtkTreeIter *iter, const gchar *name, gpointer parent, gpointer item,
518 gint data, GdkPixbuf *icon, gboolean has_visible, gboolean editable )
520 g_assert ( iter != NULL );
522 gtk_tree_store_prepend ( GTK_TREE_STORE(vt->model), iter, parent_iter );
523 gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, NAME_COLUMN, name, VISIBLE_COLUMN, TRUE, TYPE_COLUMN, VIK_TREEVIEW_TYPE_SUBLAYER, ITEM_PARENT_COLUMN, parent, ITEM_POINTER_COLUMN, item, ITEM_DATA_COLUMN, data, HAS_VISIBLE_COLUMN, has_visible, EDITABLE_COLUMN, editable, ICON_COLUMN, icon, -1 );
527 #ifdef VIK_CONFIG_ALPHABETIZED_TRW
529 void vik_treeview_sublayer_realphabetize ( VikTreeview *vt, GtkTreeIter *iter, const gchar *newname )
531 GtkTreeIter search_iter, parent_iter;
532 gchar *search_name = NULL;
533 g_assert ( iter != NULL );
535 gtk_tree_model_iter_parent ( vt->model, &parent_iter, iter );
537 g_assert ( gtk_tree_model_iter_children ( vt->model, &search_iter, &parent_iter ) );
540 gtk_tree_model_get ( vt->model, &search_iter, NAME_COLUMN, &search_name, -1 );
541 if ( strcmp ( search_name, newname ) > 0 ) /* not >= or would trip on itself */
543 gtk_tree_store_move_before ( GTK_TREE_STORE(vt->model), iter, &search_iter );
544 g_free (search_name);
548 g_free (search_name);
550 } while ( gtk_tree_model_iter_next ( vt->model, &search_iter ) );
552 gtk_tree_store_move_before ( GTK_TREE_STORE(vt->model), iter, NULL );
555 void vik_treeview_add_sublayer_alphabetized
556 ( VikTreeview *vt, GtkTreeIter *parent_iter, GtkTreeIter *iter, const gchar *name, gpointer parent, gpointer item,
557 gint data, GdkPixbuf *icon, gboolean has_visible, gboolean editable )
559 GtkTreeIter search_iter;
560 gchar *search_name = NULL;
561 g_assert ( iter != NULL );
563 if ( gtk_tree_model_iter_children ( vt->model, &search_iter, parent_iter ) )
565 gboolean found_greater_string = FALSE;
567 gtk_tree_model_get ( vt->model, &search_iter, NAME_COLUMN, &search_name, -1 );
568 if ( strcmp ( search_name, name ) >= 0 )
570 gtk_tree_store_insert_before ( GTK_TREE_STORE(vt->model), iter, parent_iter, &search_iter );
571 found_greater_string = TRUE;
572 g_free (search_name);
576 g_free (search_name);
578 } while ( gtk_tree_model_iter_next ( vt->model, &search_iter ) );
580 if ( ! found_greater_string )
581 gtk_tree_store_append ( GTK_TREE_STORE(vt->model), iter, parent_iter );
584 gtk_tree_store_prepend ( GTK_TREE_STORE(vt->model), iter, parent_iter );
586 gtk_tree_store_set ( GTK_TREE_STORE(vt->model), iter, NAME_COLUMN, name, VISIBLE_COLUMN, TRUE, TYPE_COLUMN, VIK_TREEVIEW_TYPE_SUBLAYER, ITEM_PARENT_COLUMN, parent, ITEM_POINTER_COLUMN, item, ITEM_DATA_COLUMN, data, HAS_VISIBLE_COLUMN, has_visible, EDITABLE_COLUMN, editable, ICON_COLUMN, icon, -1 );
591 static void treeview_finalize ( GObject *gob )
593 VikTreeview *vt = VIK_TREEVIEW ( gob );
596 for ( i = 0; i < VIK_LAYER_NUM_TYPES; i++ )
597 if ( vt->layer_type_icons[i] != NULL )
598 g_object_unref ( G_OBJECT(vt->layer_type_icons[i]) );
600 G_OBJECT_CLASS(parent_class)->finalize(gob);
603 static gboolean treeview_drag_data_received (GtkTreeDragDest *drag_dest, GtkTreePath *dest, GtkSelectionData *selection_data)
605 GtkTreeModel *tree_model;
606 GtkTreeStore *tree_store;
607 GtkTreeModel *src_model = NULL;
608 GtkTreePath *src_path = NULL, *dest_cp = NULL;
609 gboolean retval = FALSE;
610 GtkTreeIter src_iter, root_iter, dest_iter, dest_parent;
615 g_return_val_if_fail (GTK_IS_TREE_STORE (drag_dest), FALSE);
617 tree_model = GTK_TREE_MODEL (drag_dest);
618 tree_store = GTK_TREE_STORE (drag_dest);
620 if (gtk_tree_get_row_drag_data (selection_data, &src_model, &src_path) && src_model == tree_model) {
622 * Copy src_path to dest. There are two subcases here, depending on what
625 * 1. src_path is a layer. In this case, interpret the drop
626 * as a request to move the layer to a different aggregate layer.
627 * If the destination is not an aggregate layer, use the first
630 * 2. src_path is a sublayer. In this case, find ancestors of
631 * both source and destination nodes who are full layers,
632 * and call the move method of that layer type.
635 if (!gtk_tree_model_get_iter (src_model, &src_iter, src_path)) {
638 if (!gtk_tree_path_compare(src_path, dest)) {
642 i_src = gtk_tree_path_get_indices (src_path);
643 dest_cp = gtk_tree_path_copy (dest);
645 gtk_tree_model_get_iter_first(tree_model, &root_iter);
646 TREEVIEW_GET(tree_model, &root_iter, ITEM_POINTER_COLUMN, &vl);
650 if (gtk_tree_path_get_depth(dest_cp)>1) { /* can't be sibling of top layer */
651 VikLayer *vl_src, *vl_dest;
653 /* Find the first ancestor that is a full layer, and store in dest_parent.
654 * In addition, put in dest_iter where Gtk wants us to insert the dragged object.
655 * (Note that this may end up being an invalid iter).
658 gtk_tree_path_up(dest_cp);
659 dest_iter = dest_parent;
660 gtk_tree_model_get_iter (src_model, &dest_parent, dest_cp);
661 } while (gtk_tree_path_get_depth(dest_cp)>1 &&
662 vik_treeview_item_get_type(vt, &dest_parent) != VIK_TREEVIEW_TYPE_LAYER);
665 g_assert ( vik_treeview_item_get_parent(vt, &src_iter) );
666 vl_src = vik_treeview_item_get_parent(vt, &src_iter);
667 vl_dest = vik_treeview_item_get_pointer(vt, &dest_parent);
669 /* TODO: might want to allow different types, and let the clients handle how they want */
670 if (vl_src->type == vl_dest->type && vik_layer_get_interface(vl_dest->type)->drag_drop_request) {
671 // g_print("moving an item from layer '%s' into layer '%s'\n", vl_src->name, vl_dest->name);
672 vik_layer_get_interface(vl_dest->type)->drag_drop_request(vl_src, vl_dest, &src_iter, dest);
679 gtk_tree_path_free(dest_cp);
681 gtk_tree_path_free (src_path);
687 * This may not be necessary.
689 static gboolean treeview_drag_data_delete ( GtkTreeDragSource *drag_source, GtkTreePath *path )
691 gchar *s_dest = gtk_tree_path_to_string(path);
692 g_print(_("delete data from %s\n"), s_dest);