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Added GtkTreeMenuHeaderFunc to decide if a submenu gets a leaf header.

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GtkComboBox needs treemenus to allow selection of all leafs including
rows which may have children, this allows the combobox or combobox user
to decide which row that has children can also be selectable as a header
leaf of the submenu. Test case testtreemenu updated to reflect this.
This commit is contained in:
Tristan Van Berkom
2010-11-20 16:32:24 +09:00
parent 6d8dfd5546
commit 9ffaae5022
3 changed files with 233 additions and 29 deletions
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72
tests/testtreemenu.c
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@ -16,7 +16,7 @@ static GtkCellRenderer *cell_1 = NULL, *cell_2 = NULL, *cell_3 = NULL;
static GtkTreeModel *
simple_tree_model (void)
{
GtkTreeIter iter, parent;
GtkTreeIter iter, parent, child;
GtkTreeStore *store =
gtk_tree_store_new (N_SIMPLE_COLUMNS,
G_TYPE_STRING, /* name text */
@ -84,6 +84,27 @@ simple_tree_model (void)
SIMPLE_COLUMN_DESCRIPTION, "Eager",
-1);
gtk_tree_store_append (store, &child, &iter);
gtk_tree_store_set (store, &child,
SIMPLE_COLUMN_NAME, "Jump",
SIMPLE_COLUMN_ICON, "gtk-yes",
SIMPLE_COLUMN_DESCRIPTION, "Very High",
-1);
gtk_tree_store_append (store, &child, &iter);
gtk_tree_store_set (store, &child,
SIMPLE_COLUMN_NAME, "Pounce",
SIMPLE_COLUMN_ICON, "gtk-no",
SIMPLE_COLUMN_DESCRIPTION, "On Pooh",
-1);
gtk_tree_store_append (store, &child, &iter);
gtk_tree_store_set (store, &child,
SIMPLE_COLUMN_NAME, "Bounce",
SIMPLE_COLUMN_ICON, "gtk-cancel",
SIMPLE_COLUMN_DESCRIPTION, "Around",
-1);
gtk_tree_store_append (store, &iter, &parent);
gtk_tree_store_set (store, &iter,
SIMPLE_COLUMN_NAME, "Owl",
@ -212,6 +233,44 @@ expand_cell_3_toggled (GtkToggleButton *toggle,
gtk_cell_area_cell_set (area, cell_3, "expand", expand, NULL);
}
static void
menu_activated_cb (GtkTreeMenu *menu,
const gchar *path,
gpointer unused)
{
GtkTreeModel *model = gtk_tree_menu_get_model (menu);
GtkTreeIter iter;
gchar *row_name;
if (!gtk_tree_model_get_iter_from_string (model, &iter, path))
return;
gtk_tree_model_get (model, &iter, SIMPLE_COLUMN_NAME, &row_name, -1);
g_print ("Item activated: %s\n", row_name);
g_free (row_name);
}
gboolean
enable_submenu_headers (GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
return TRUE;
}
static void
submenu_headers_toggled (GtkToggleButton *toggle,
GtkTreeMenu *menu)
{
if (gtk_toggle_button_get_active (toggle))
gtk_tree_menu_set_header_func (menu, enable_submenu_headers, NULL, NULL);
else
gtk_tree_menu_set_header_func (menu, NULL, NULL, NULL);
}
static void
tree_menu (void)
{
@ -224,6 +283,8 @@ tree_menu (void)
menu = simple_tree_menu ();
g_signal_connect (menu, "menu-activate", G_CALLBACK (menu_activated_cb), NULL);
vbox = gtk_vbox_new (FALSE, 4);
gtk_widget_show (vbox);
@ -278,6 +339,15 @@ tree_menu (void)
g_signal_connect (G_OBJECT (widget), "toggled",
G_CALLBACK (expand_cell_3_toggled), menu);
widget = gtk_check_button_new_with_label ("Submenu Headers");
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), FALSE);
gtk_widget_show (widget);
gtk_box_pack_start (GTK_BOX (vbox), widget, FALSE, FALSE, 0);
g_signal_connect (G_OBJECT (widget), "toggled",
G_CALLBACK (submenu_headers_toggled), menu);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (window);