medit/moo/mooutils/mooutils-treeview.c

890 lines
26 KiB
C

/*
* mooutils-treeview.c
*
* Copyright (C) 2004-2007 by Yevgen Muntyan <muntyan@math.tamu.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* See COPYING file that comes with this distribution.
*/
#include "mooutils/mooutils-treeview.h"
#include "mooutils/mooutils-gobject.h"
#include "mooutils/moomarshals.h"
#include "mooutils/mooutils-debug.h"
#include <string.h>
#include <gobject/gvaluecollector.h>
typedef enum {
TREE_VIEW,
COMBO_BOX
} WidgetType;
static void moo_tree_helper_new_row (MooTreeHelper *helper);
static void moo_tree_helper_delete_row (MooTreeHelper *helper);
static void moo_tree_helper_row_up (MooTreeHelper *helper);
static void moo_tree_helper_row_down (MooTreeHelper *helper);
static void moo_tree_helper_real_update_widgets (MooTreeHelper *helper,
GtkTreeModel *model,
GtkTreePath *path);
static GtkTreeModel *moo_tree_helper_get_model (MooTreeHelper *helper);
static gboolean moo_tree_helper_get_selected (MooTreeHelper *helper,
GtkTreeModel **model,
GtkTreeIter *iter);
static gboolean tree_helper_new_row_default (MooTreeHelper *helper,
GtkTreeModel *model,
GtkTreePath *path);
static gboolean tree_helper_delete_row_default (MooTreeHelper *helper,
GtkTreeModel *model,
GtkTreePath *path);
static gboolean tree_helper_move_row_default (MooTreeHelper *helper,
GtkTreeModel *model,
GtkTreePath *old_path,
GtkTreePath *new_path);
G_DEFINE_TYPE (MooTreeHelper, _moo_tree_helper, GTK_TYPE_OBJECT)
enum {
NEW_ROW,
DELETE_ROW,
MOVE_ROW,
UPDATE_WIDGETS,
UPDATE_MODEL,
TREE_NUM_SIGNALS
};
static guint tree_signals[TREE_NUM_SIGNALS];
static void
tree_selection_changed (GtkTreeSelection *selection,
MooTreeHelper *helper)
{
GtkTreeRowReference *old_row;
GtkTreeModel *model;
GtkTreeIter iter;
GtkTreePath *path, *old_path;
old_row = g_object_get_data (G_OBJECT (selection), "moo-tree-helper-current-row");
old_path = old_row ? gtk_tree_row_reference_get_path (old_row) : NULL;
if (old_row && !old_path)
{
g_object_set_data (G_OBJECT (selection), "moo-tree-helper-current-row", NULL);
old_row = NULL;
}
if (gtk_tree_selection_get_selected (selection, &model, &iter))
{
path = gtk_tree_model_get_path (model, &iter);
if (old_path && !gtk_tree_path_compare (old_path, path))
{
gtk_tree_path_free (old_path);
gtk_tree_path_free (path);
return;
}
}
else
{
if (!old_path)
return;
path = NULL;
}
if (old_path)
_moo_tree_helper_update_model (helper, model, old_path);
moo_tree_helper_real_update_widgets (helper, model, path);
if (path)
{
GtkTreeRowReference *row;
row = gtk_tree_row_reference_new (model, path);
g_object_set_data_full (G_OBJECT (selection), "moo-tree-helper-current-row", row,
(GDestroyNotify) gtk_tree_row_reference_free);
}
else
{
g_object_set_data (G_OBJECT (selection), "moo-tree-helper-current-row", NULL);
}
gtk_tree_path_free (path);
gtk_tree_path_free (old_path);
}
static void
combo_changed (GtkComboBox *combo,
MooTreeHelper *helper)
{
GtkTreeRowReference *old_row;
GtkTreeModel *model;
GtkTreeIter iter;
GtkTreePath *path, *old_path;
g_return_if_fail (MOO_IS_TREE_HELPER (helper));
g_return_if_fail (combo == helper->widget);
old_row = g_object_get_data (G_OBJECT (combo), "moo-tree-helper-current-row");
old_path = old_row ? gtk_tree_row_reference_get_path (old_row) : NULL;
if (old_row && !old_path)
{
g_object_set_data (G_OBJECT (combo), "moo-tree-helper-current-row", NULL);
old_row = NULL;
}
if (moo_tree_helper_get_selected (helper, &model, &iter))
{
path = gtk_tree_model_get_path (model, &iter);
if (old_path && !gtk_tree_path_compare (old_path, path))
{
gtk_tree_path_free (old_path);
gtk_tree_path_free (path);
return;
}
}
else
{
if (!old_path)
return;
path = NULL;
}
if (old_path)
_moo_tree_helper_update_model (helper, model, old_path);
moo_tree_helper_real_update_widgets (helper, model, path);
if (path)
{
GtkTreeRowReference *row;
row = gtk_tree_row_reference_new (model, path);
g_object_set_data_full (G_OBJECT (combo), "moo-tree-helper-current-row", row,
(GDestroyNotify) gtk_tree_row_reference_free);
}
else
{
g_object_set_data (G_OBJECT (combo), "moo-tree-helper-current-row", NULL);
}
gtk_tree_path_free (path);
gtk_tree_path_free (old_path);
}
static void
moo_tree_helper_destroy (GtkObject *object)
{
MooTreeHelper *helper = MOO_TREE_HELPER (object);
if (helper->widget)
{
GtkTreeSelection *selection;
g_signal_handlers_disconnect_by_func (helper->widget,
(gpointer) gtk_object_destroy,
helper);
switch (helper->type)
{
case TREE_VIEW:
selection = gtk_tree_view_get_selection (helper->widget);
g_signal_handlers_disconnect_by_func (selection,
(gpointer) tree_selection_changed,
helper);
break;
case COMBO_BOX:
g_signal_handlers_disconnect_by_func (helper->widget,
(gpointer) combo_changed,
helper);
break;
}
if (helper->new_btn)
g_signal_handlers_disconnect_by_func (helper->new_btn,
(gpointer) moo_tree_helper_new_row,
helper);
if (helper->delete_btn)
g_signal_handlers_disconnect_by_func (helper->delete_btn,
(gpointer) moo_tree_helper_delete_row,
helper);
if (helper->up_btn)
g_signal_handlers_disconnect_by_func (helper->up_btn,
(gpointer) moo_tree_helper_row_up,
helper);
if (helper->down_btn)
g_signal_handlers_disconnect_by_func (helper->down_btn,
(gpointer) moo_tree_helper_row_down,
helper);
helper->widget = NULL;
}
GTK_OBJECT_CLASS (_moo_tree_helper_parent_class)->destroy (object);
}
static gboolean
tree_helper_new_row_default (G_GNUC_UNUSED MooTreeHelper *helper,
GtkTreeModel *model,
GtkTreePath *path)
{
GtkTreeIter iter;
if (!GTK_IS_LIST_STORE (model))
return FALSE;
g_return_val_if_fail (path != NULL, FALSE);
g_return_val_if_fail (gtk_tree_path_get_depth (path) == 1, FALSE);
gtk_list_store_insert (GTK_LIST_STORE (model), &iter,
gtk_tree_path_get_indices(path)[0]);
return TRUE;
}
static gboolean
tree_helper_delete_row_default (G_GNUC_UNUSED MooTreeHelper *helper,
GtkTreeModel *model,
GtkTreePath *path)
{
GtkTreeIter iter;
if (!GTK_IS_LIST_STORE (model))
return FALSE;
g_return_val_if_fail (path != NULL, FALSE);
g_return_val_if_fail (gtk_tree_path_get_depth (path) == 1, FALSE);
gtk_tree_model_get_iter (model, &iter, path);
gtk_list_store_remove (GTK_LIST_STORE (model), &iter);
return TRUE;
}
static gboolean
tree_helper_move_row_default (G_GNUC_UNUSED MooTreeHelper *helper,
GtkTreeModel *model,
GtkTreePath *old_path,
GtkTreePath *new_path)
{
GtkTreeIter old_iter, new_iter;
int new, old;
if (!GTK_IS_LIST_STORE (model))
return FALSE;
g_return_val_if_fail (old_path && new_path, FALSE);
g_return_val_if_fail (gtk_tree_path_get_depth (old_path) == 1, FALSE);
g_return_val_if_fail (gtk_tree_path_get_depth (new_path) == 1, FALSE);
new = gtk_tree_path_get_indices(new_path)[0];
old = gtk_tree_path_get_indices(old_path)[0];
g_return_val_if_fail (ABS (new - old) == 1, FALSE);
gtk_tree_model_get_iter (model, &old_iter, old_path);
gtk_tree_model_get_iter (model, &new_iter, new_path);
gtk_list_store_swap (GTK_LIST_STORE (model), &old_iter, &new_iter);
return TRUE;
}
static void
_moo_tree_helper_class_init (MooTreeHelperClass *klass)
{
GTK_OBJECT_CLASS(klass)->destroy = moo_tree_helper_destroy;
klass->move_row = tree_helper_move_row_default;
klass->new_row = tree_helper_new_row_default;
klass->delete_row = tree_helper_delete_row_default;
tree_signals[NEW_ROW] =
g_signal_new ("new-row",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTreeHelperClass, new_row),
g_signal_accumulator_true_handled, NULL,
_moo_marshal_BOOL__OBJECT_BOXED,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_TREE_MODEL,
GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE);
tree_signals[DELETE_ROW] =
g_signal_new ("delete-row",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTreeHelperClass, delete_row),
g_signal_accumulator_true_handled, NULL,
_moo_marshal_BOOL__OBJECT_BOXED,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_TREE_MODEL,
GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE);
tree_signals[MOVE_ROW] =
g_signal_new ("move-row",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTreeHelperClass, move_row),
g_signal_accumulator_true_handled, NULL,
_moo_marshal_BOOL__OBJECT_BOXED_BOXED,
G_TYPE_BOOLEAN, 3,
GTK_TYPE_TREE_MODEL,
GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE,
GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE);
tree_signals[UPDATE_WIDGETS] =
g_signal_new ("update-widgets",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTreeHelperClass, update_widgets),
NULL, NULL,
_moo_marshal_VOID__OBJECT_BOXED_BOXED,
G_TYPE_NONE, 3,
GTK_TYPE_TREE_MODEL,
GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE,
GTK_TYPE_TREE_ITER | G_SIGNAL_TYPE_STATIC_SCOPE);
tree_signals[UPDATE_MODEL] =
g_signal_new ("update-model",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTreeHelperClass, update_model),
NULL, NULL,
_moo_marshal_VOID__OBJECT_BOXED_BOXED,
G_TYPE_NONE, 3,
GTK_TYPE_TREE_MODEL,
GTK_TYPE_TREE_PATH | G_SIGNAL_TYPE_STATIC_SCOPE,
GTK_TYPE_TREE_ITER | G_SIGNAL_TYPE_STATIC_SCOPE);
}
void
_moo_tree_helper_set_modified (MooTreeHelper *helper,
gboolean modified)
{
g_return_if_fail (MOO_IS_TREE_HELPER (helper));
#ifdef MOO_DEBUG
if (!helper->modified && modified)
{
g_message ("%s: helper modified", G_STRLOC);
}
#endif
helper->modified = modified != 0;
}
gboolean
_moo_tree_helper_get_modified (MooTreeHelper *helper)
{
g_return_val_if_fail (MOO_IS_TREE_HELPER (helper), FALSE);
return helper->modified;
}
void
_moo_tree_view_select_first (GtkTreeView *tree_view)
{
GtkTreeSelection *selection;
GtkTreeModel *model;
GtkTreeIter iter;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
selection = gtk_tree_view_get_selection (tree_view);
model = gtk_tree_view_get_model (tree_view);
if (gtk_tree_model_get_iter_first (model, &iter))
gtk_tree_selection_select_iter (selection, &iter);
}
void
_moo_combo_box_select_first (GtkComboBox *combo)
{
GtkTreeModel *model;
GtkTreeIter iter;
g_return_if_fail (GTK_IS_COMBO_BOX (combo));
model = gtk_combo_box_get_model (combo);
if (gtk_tree_model_get_iter_first (model, &iter))
gtk_combo_box_set_active_iter (combo, &iter);
}
static void
moo_tree_helper_real_update_widgets (MooTreeHelper *helper,
GtkTreeModel *model,
GtkTreePath *path)
{
GtkTreeIter iter;
if (!path)
{
if (helper->delete_btn)
gtk_widget_set_sensitive (helper->delete_btn, FALSE);
if (helper->up_btn)
gtk_widget_set_sensitive (helper->up_btn, FALSE);
if (helper->down_btn)
gtk_widget_set_sensitive (helper->down_btn, FALSE);
}
else
{
int *indices;
int n_rows;
if (helper->delete_btn)
gtk_widget_set_sensitive (helper->delete_btn, TRUE);
indices = gtk_tree_path_get_indices (path);
if (helper->up_btn)
gtk_widget_set_sensitive (helper->up_btn, indices[0] != 0);
n_rows = gtk_tree_model_iter_n_children (model, NULL);
if (helper->down_btn)
gtk_widget_set_sensitive (helper->down_btn, indices[0] != n_rows - 1);
}
if (path)
gtk_tree_model_get_iter (model, &iter, path);
g_signal_emit (helper, tree_signals[UPDATE_WIDGETS], 0,
model, path, path ? &iter : NULL);
}
void
_moo_tree_helper_update_model (MooTreeHelper *helper,
GtkTreeModel *model,
GtkTreePath *path)
{
GtkTreePath *freeme = NULL;
GtkTreeIter iter;
g_return_if_fail (MOO_IS_TREE_HELPER (helper));
g_return_if_fail (!model || GTK_IS_TREE_MODEL (model));
if (!model)
model = moo_tree_helper_get_model (helper);
if (!path && moo_tree_helper_get_selected (helper, NULL, &iter))
path = freeme = gtk_tree_model_get_path (model, &iter);
if (path)
{
gtk_tree_model_get_iter (model, &iter, path);
g_signal_emit (helper, tree_signals[UPDATE_MODEL], 0,
model, path, &iter);
}
gtk_tree_path_free (freeme);
}
static GtkTreeModel *
moo_tree_helper_get_model (MooTreeHelper *helper)
{
switch (helper->type)
{
case TREE_VIEW:
return gtk_tree_view_get_model (helper->widget);
case COMBO_BOX:
return gtk_combo_box_get_model (helper->widget);
}
g_return_val_if_reached (NULL);
}
static gboolean
moo_tree_helper_get_selected (MooTreeHelper *helper,
GtkTreeModel **model,
GtkTreeIter *iter)
{
GtkTreeSelection *selection;
switch (helper->type)
{
case TREE_VIEW:
selection = gtk_tree_view_get_selection (helper->widget);
return gtk_tree_selection_get_selected (selection, model, iter);
case COMBO_BOX:
if (model)
*model = gtk_combo_box_get_model (helper->widget);
return gtk_combo_box_get_active_iter (helper->widget, iter);
}
g_return_val_if_reached (FALSE);
}
static int
iter_get_index (GtkTreeModel *model,
GtkTreeIter *iter)
{
int index;
GtkTreePath *path;
path = gtk_tree_model_get_path (model, iter);
if (!path)
return -1;
index = gtk_tree_path_get_indices(path)[0];
gtk_tree_path_free (path);
return index;
}
static void
moo_tree_helper_new_row (MooTreeHelper *helper)
{
GtkTreeModel *model;
GtkTreeIter iter;
GtkTreeSelection *selection;
GtkTreePath *path;
int index;
gboolean result;
g_return_if_fail (helper->type == TREE_VIEW);
selection = gtk_tree_view_get_selection (helper->widget);
if (!gtk_tree_selection_get_selected (selection, &model, &iter))
index = gtk_tree_model_iter_n_children (model, NULL);
else
index = iter_get_index (model, &iter) + 1;
path = gtk_tree_path_new_from_indices (index, -1);
g_signal_emit (helper, tree_signals[NEW_ROW], 0, model, path, &result);
if (result && gtk_tree_model_get_iter (model, &iter, path))
{
gtk_tree_selection_select_iter (selection, &iter);
helper->modified = TRUE;
}
gtk_tree_path_free (path);
}
static void
moo_tree_helper_delete_row (MooTreeHelper *helper)
{
GtkTreeModel *model;
GtkTreeIter iter;
GtkTreeSelection *selection;
GtkTreePath *path;
gboolean result;
g_return_if_fail (helper->type == TREE_VIEW);
selection = gtk_tree_view_get_selection (helper->widget);
if (!gtk_tree_selection_get_selected (selection, &model, &iter))
{
g_critical ("%s: oops", G_STRLOC);
return;
}
path = gtk_tree_model_get_path (model, &iter);
g_signal_emit (helper, tree_signals[DELETE_ROW], 0, model, path, &result);
if (result)
helper->modified = TRUE;
if (result && (gtk_tree_model_get_iter (model, &iter, path) ||
(gtk_tree_path_prev (path) && gtk_tree_model_get_iter (model, &iter, path))))
gtk_tree_selection_select_iter (selection, &iter);
else
_moo_tree_helper_update_widgets (helper);
gtk_tree_path_free (path);
}
static void
moo_tree_helper_row_move (MooTreeHelper *helper,
gboolean up)
{
GtkTreeModel *model;
GtkTreeIter iter;
GtkTreePath *path, *new_path;
GtkTreeSelection *selection;
gboolean result;
g_return_if_fail (helper->type == TREE_VIEW);
selection = gtk_tree_view_get_selection (helper->widget);
if (!gtk_tree_selection_get_selected (selection, &model, &iter))
{
g_critical ("%s: oops", G_STRLOC);
return;
}
path = gtk_tree_model_get_path (model, &iter);
new_path = gtk_tree_path_copy (path);
if (up && !gtk_tree_path_prev (new_path))
g_return_if_reached ();
else if (!up)
gtk_tree_path_next (new_path);
g_signal_emit (helper, tree_signals[MOVE_ROW], 0, model, path, new_path, &result);
if (result)
{
helper->modified = TRUE;
moo_tree_helper_real_update_widgets (helper, model, new_path);
}
gtk_tree_path_free (new_path);
gtk_tree_path_free (path);
}
static void
moo_tree_helper_row_up (MooTreeHelper *helper)
{
moo_tree_helper_row_move (helper, TRUE);
}
static void
moo_tree_helper_row_down (MooTreeHelper *helper)
{
moo_tree_helper_row_move (helper, FALSE);
}
static void
_moo_tree_helper_init (G_GNUC_UNUSED MooTreeHelper *helper)
{
}
void
_moo_tree_helper_connect (MooTreeHelper *helper,
GtkWidget *widget,
GtkWidget *new_btn,
GtkWidget *delete_btn,
GtkWidget *up_btn,
GtkWidget *down_btn)
{
GtkTreeSelection *selection;
g_return_if_fail (MOO_IS_TREE_HELPER (helper));
g_return_if_fail (GTK_IS_TREE_VIEW (widget) || GTK_IS_COMBO_BOX (widget));
g_return_if_fail (helper->widget == NULL);
helper->widget = widget;
if (GTK_IS_TREE_VIEW (widget))
helper->type = TREE_VIEW;
else
helper->type = COMBO_BOX;
helper->new_btn = new_btn;
helper->delete_btn = delete_btn;
helper->up_btn = up_btn;
helper->down_btn = down_btn;
g_signal_connect_swapped (widget, "destroy",
G_CALLBACK (gtk_object_destroy),
helper);
switch (helper->type)
{
case TREE_VIEW:
selection = gtk_tree_view_get_selection (helper->widget);
g_signal_connect (selection, "changed",
G_CALLBACK (tree_selection_changed),
helper);
break;
case COMBO_BOX:
g_signal_connect (widget, "changed",
G_CALLBACK (combo_changed),
helper);
break;
}
if (new_btn)
g_signal_connect_swapped (new_btn, "clicked",
G_CALLBACK (moo_tree_helper_new_row),
helper);
if (delete_btn)
g_signal_connect_swapped (delete_btn, "clicked",
G_CALLBACK (moo_tree_helper_delete_row),
helper);
if (up_btn)
g_signal_connect_swapped (up_btn, "clicked",
G_CALLBACK (moo_tree_helper_row_up),
helper);
if (down_btn)
g_signal_connect_swapped (down_btn, "clicked",
G_CALLBACK (moo_tree_helper_row_down),
helper);
}
MooTreeHelper *
_moo_tree_helper_new (GtkWidget *widget,
GtkWidget *new_btn,
GtkWidget *delete_btn,
GtkWidget *up_btn,
GtkWidget *down_btn)
{
MooTreeHelper *helper;
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget) || GTK_IS_COMBO_BOX (widget), NULL);
helper = g_object_new (MOO_TYPE_TREE_HELPER, NULL);
MOO_OBJECT_REF_SINK (helper);
_moo_tree_helper_connect (helper, widget, new_btn, delete_btn, up_btn, down_btn);
return helper;
}
void
_moo_tree_helper_update_widgets (MooTreeHelper *helper)
{
GtkTreeModel *model;
GtkTreeIter iter;
g_return_if_fail (MOO_IS_TREE_HELPER (helper));
if (moo_tree_helper_get_selected (helper, &model, &iter))
{
GtkTreePath *path = gtk_tree_model_get_path (model, &iter);
moo_tree_helper_real_update_widgets (MOO_TREE_HELPER (helper), model, path);
gtk_tree_path_free (path);
}
else
{
moo_tree_helper_real_update_widgets (MOO_TREE_HELPER (helper), NULL, NULL);
}
}
static gboolean
set_value (GtkTreeModel *model,
GtkTreeIter *iter,
int column,
GValue *value)
{
GValue old_value;
gboolean modified;
old_value.g_type = 0;
gtk_tree_model_get_value (model, iter, column, &old_value);
modified = !_moo_value_equal (value, &old_value);
if (GTK_IS_TREE_STORE (model))
gtk_tree_store_set_value (GTK_TREE_STORE (model), iter, column, value);
else if (GTK_IS_LIST_STORE (model))
gtk_list_store_set_value (GTK_LIST_STORE (model), iter, column, value);
g_value_unset (&old_value);
return modified;
}
static gboolean
moo_tree_helper_set_valist (MooTreeHelper *helper,
GtkTreeModel *model,
GtkTreeIter *iter,
va_list var_args)
{
int column;
int n_columns;
gboolean modified = FALSE;
n_columns = gtk_tree_model_get_n_columns (model);
column = va_arg (var_args, gint);
while (column >= 0)
{
GType type;
GValue value;
char *error = NULL;
value.g_type = 0;
if (column >= n_columns)
{
g_warning ("%s: invalid column number %d", G_STRLOC, column);
break;
}
type = gtk_tree_model_get_column_type (model, column);
g_value_init (&value, type);
G_VALUE_COLLECT (&value, var_args, 0, &error);
if (error)
{
g_warning ("%s: %s", G_STRLOC, error);
g_free (error);
break;
}
modified = set_value (model, iter, column, &value) || modified;
g_value_unset (&value);
column = va_arg (var_args, gint);
}
helper->modified = helper->modified || modified;
return modified;
}
gboolean
_moo_tree_helper_set (MooTreeHelper *helper,
GtkTreeIter *iter,
...)
{
va_list args;
GtkTreeModel *model;
gboolean ret;
g_return_val_if_fail (MOO_IS_TREE_HELPER (helper), FALSE);
model = moo_tree_helper_get_model (helper);
g_return_val_if_fail (GTK_IS_TREE_STORE (model) || GTK_IS_LIST_STORE (model), FALSE);
va_start (args, iter);
ret = moo_tree_helper_set_valist (helper, model, iter, args);
va_end (args);
return ret;
}