/*#
@method is_ancestor GtkTreePath
@brief Returns TRUE if descendant is a descendant of path.
@param descendant another GtkTreePath
@return TRUE if descendant is contained inside path
*/
FALCON_FUNC TreePath::is_ancestor( VMARG )
{
Item* i_desc = vm->param( 0 );
#ifndef NO_PARAMETER_CHECK
if ( !i_desc || !i_desc->isObject() || !IS_DERIVED( i_desc, GtkTreePath ) )
throw_inv_params( "GtkTreePath" );
#endif
GtkTreePath* desc = GET_TREEPATH( *i_desc );
MYSELF;
vm->retval( (bool) gtk_tree_path_is_ancestor( self->getTreePath(), desc ) );
}
static gboolean
bookmark_tree_store_row_drop_possible (GtkTreeDragDest *drag_dest,
GtkTreePath *dest_path,
GtkSelectionData *selection_data)
{
GtkTreeModel *src_model = NULL;
GtkTreePath *src_path = NULL;
GtkTreePath *tmp = NULL;
gboolean retval = FALSE;
GtkTreeIter iter;
GNode *src_node, *dst_node;
gftp2_bookmark *src_bm, *dst_bm;
if (!gtk_tree_get_row_drag_data (selection_data,
&src_model,
&src_path))
goto out;
/*
fprintf (stderr, "%s -to- %s",
gtk_tree_path_to_string (src_path),
gtk_tree_path_to_string (dest_path));
*/
/* can only drag to ourselves */
if (src_model != GTK_TREE_MODEL (drag_dest))
goto out;
/* Can't drop into ourself. */
if (gtk_tree_path_is_ancestor (src_path,
dest_path))
goto out;
/* Can't drop if dest_path's parent doesn't exist */
if (gtk_tree_path_get_depth (dest_path) > 1)
{
tmp = gtk_tree_path_copy (dest_path);
gtk_tree_path_up (tmp);
if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (drag_dest),
&iter, tmp))
goto out;
gtk_tree_model_get (src_model, &iter, /* src_model == dst_model */
COLUMN_ENTRY, &dst_node,
-1);
g_assert (dst_node);
dst_bm = (gftp2_bookmark *)dst_node->data;
/* can't drag an item into a non-folder */
if (!dst_bm->is_folder)
goto out;
gtk_tree_model_get_iter (src_model, &iter, src_path);
gtk_tree_model_get (src_model, &iter,
COLUMN_ENTRY, &src_node,
-1);
g_assert (src_node);
src_bm = (gftp2_bookmark *)src_node->data;
/* can't drag folder into a folder */
if (src_bm->is_folder)
goto out;
}
/* Can otherwise drop anywhere. */
retval = TRUE;
out:
/* fprintf (stderr, " %s\n", retval ? "Can drop" : "Can't drop"); */
if (src_path)
gtk_tree_path_free (src_path);
if (tmp)
gtk_tree_path_free (tmp);
return retval;
}
static VALUE
rg_ancestor_p(VALUE self, VALUE descendant)
{
return CBOOL2RVAL(gtk_tree_path_is_ancestor(_SELF(self), _SELF(descendant)));
}