gnome-control-center/capplets/theme-switcher/control/control.c

#include <config.h>
#include <libbonoboui.h>
#include <string.h>

static gchar* current_theme = NULL;
static gchar **new_rc_files = NULL;

#define GNOME_PAD_SMALL 4

static GtkWidget*
create_form (void)
{
  GtkWidget *widget, *table, *hbox;
  GtkWidget *scrolled_window, *menubar, *menu;
  GtkListStore *store;
  GtkTreeIter iter;
  GSList *group;
  const gchar *text = _("Eenie Meenie Mynie Moe Catcha Tiger By Its Toe");
  gchar **textarr;
  gint i;
  gint col = 0, newcol;

  store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_STRING);
  textarr = g_strsplit (text, " ", -1);

  for (i = 0; textarr && textarr[i]; i++) {
	  if (!col) {
		  gtk_list_store_append (store, &iter);
		  newcol = 1;
	  }
	  else
		  newcol = 0;

	  gtk_list_store_set (store,
			      &iter, 
			      col, textarr[i],
			      -1);
	  col = newcol;
  }
  
  table = gtk_table_new (5, 3, FALSE);
  
  widget = gtk_label_new (_("Selected themes from above will be tested by previewing here."));
  gtk_label_set_justify (GTK_LABEL (widget), GTK_JUSTIFY_LEFT);
  gtk_table_attach (GTK_TABLE (table), widget, 0, 3, 0, 1, 0, 0, GNOME_PAD_SMALL, GNOME_PAD_SMALL);

  /* column one */
  widget = gtk_button_new_with_label (_("Sample Button"));
  hbox = gtk_hbox_new (FALSE, 0);
  gtk_box_pack_start (GTK_BOX (hbox), widget, FALSE, FALSE, 0);
  gtk_table_attach (GTK_TABLE (table), hbox, 0, 1, 2, 3, GTK_EXPAND | GTK_FILL, 0, GNOME_PAD_SMALL, GNOME_PAD_SMALL);
  widget = gtk_check_button_new_with_label (_("Sample Check Button"));
  hbox = gtk_hbox_new (FALSE, 0);
  gtk_box_pack_start (GTK_BOX (hbox), widget, FALSE, FALSE, 0);
  gtk_table_attach (GTK_TABLE (table), hbox, 0, 1, 3, 4, GTK_EXPAND | GTK_FILL, 0, GNOME_PAD_SMALL, 0);
  widget = gtk_entry_new ();
  gtk_entry_set_max_length (GTK_ENTRY (widget), 50);
  gtk_entry_set_text (GTK_ENTRY (widget), _("Sample Text Entry Field"));
  gtk_widget_set_size_request (widget, 70, -1);
  hbox = gtk_hbox_new (FALSE, 0);
  gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
  gtk_table_attach (GTK_TABLE (table), hbox, 0, 1, 4, 5, GTK_EXPAND | GTK_FILL, 0, GNOME_PAD_SMALL, GNOME_PAD_SMALL);

  /* column two */

  menubar = gtk_menu_bar_new();
  gtk_table_attach (GTK_TABLE (table), menubar, 1, 2, 2, 3, 0, 0, GNOME_PAD_SMALL, GNOME_PAD_SMALL);

  widget = gtk_menu_item_new_with_label(_("Submenu"));
  gtk_menu_shell_append (GTK_MENU_SHELL (menubar), widget);

  menu = gtk_menu_new();
  gtk_menu_item_set_submenu(GTK_MENU_ITEM(widget), menu);
  widget = gtk_menu_item_new_with_label(_("Item 1"));
  gtk_menu_shell_append (GTK_MENU_SHELL (menu), widget);
  widget = gtk_menu_item_new_with_label(_("Another item"));
  gtk_menu_shell_append (GTK_MENU_SHELL (menu), widget);


  widget = gtk_radio_button_new_with_label (NULL, _("Radio Button 1"));
  hbox = gtk_hbox_new (FALSE, 0);
  gtk_box_pack_start (GTK_BOX (hbox), widget, FALSE, FALSE, 0);
  group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (widget));
  gtk_table_attach (GTK_TABLE (table), hbox, 1, 2, 3, 4, GTK_EXPAND | GTK_FILL, 0, 0, 0);

  widget = gtk_radio_button_new_with_label (group, _("Radio Button 2"));
  hbox = gtk_hbox_new (FALSE, 0);
  gtk_box_pack_start (GTK_BOX (hbox), widget, FALSE, FALSE, 0);
  group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (widget));
  gtk_table_attach (GTK_TABLE (table), hbox, 1, 2, 4, 5, GTK_EXPAND | GTK_FILL, 0, 0, 0);

  /* column three */
  scrolled_window = gtk_scrolled_window_new (NULL, NULL);
  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
				       GTK_SHADOW_ETCHED_IN);
  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (scrolled_window), 
				 GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);

  gtk_table_attach (GTK_TABLE (table), scrolled_window, 2, 3, 2, 5, GTK_EXPAND | GTK_FILL, 0, GNOME_PAD_SMALL, 0);

  widget = gtk_tree_view_new_with_model (GTK_TREE_MODEL (store));
  gtk_widget_set_size_request (widget, 150, 75);
  g_object_unref (store);

  gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (widget),
					       -1,
					       _("One"),
					       gtk_cell_renderer_text_new (),
					       "text", 0,
					       NULL);
  gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (widget),
					       -1,
					       _("Two"),
					       gtk_cell_renderer_text_new (),
					       "text", 1,
					       NULL);
  
  gtk_container_add (GTK_CONTAINER (scrolled_window), widget);

  return table;
} 

static void
get_prop_cb (BonoboPropertyBag *bag, BonoboArg *arg, guint arg_id,
	     CORBA_Environment *ev, gpointer data)
{
	BONOBO_ARG_SET_STRING (arg, current_theme);
}

static void
set_prop_cb (BonoboPropertyBag *bag, const BonoboArg *arg, guint arg_id,
	     CORBA_Environment *ev, gpointer data)
{
	GtkWidget *form = GTK_WIDGET (data);
	
	if (!new_rc_files)
	{
		gchar **rc_files = gtk_rc_get_default_files ();
		int i, j;
		for (i = 0; rc_files[i] != NULL; i++)
		{
		}
		new_rc_files = g_new0 (gchar *, i + 2);
		for (j = 0; j < i; j++)
			new_rc_files[j] = g_strdup (rc_files[j]);
		current_theme = g_strdup (BONOBO_ARG_GET_STRING (arg));
		new_rc_files[j] = current_theme;
	}
	else
	{
		gchar **rc_files = gtk_rc_get_default_files ();
		int i;
		for (i = 0; rc_files[i] != NULL; i++)
		{
			if (!strcmp (rc_files[i], current_theme))
			{
				g_free (current_theme);
				current_theme = g_strdup (BONOBO_ARG_GET_STRING (arg));
				new_rc_files[i] = current_theme;
			}
			else
			{
				g_free (new_rc_files[i]);
				new_rc_files[i] = g_strdup (rc_files[i]);
			}
		}
	}
	
	gtk_rc_set_default_files (new_rc_files);

	gtk_rc_reparse_all_for_settings (gtk_settings_get_default (), TRUE);
	gtk_widget_reset_rc_styles (form);
}

BonoboObject *
gnome_theme_preview_new (void)
{
	BonoboPropertyBag *pb;
	BonoboControl *control;
	GtkWidget *form;

	form = create_form ();
	gtk_widget_show_all (form);

	control = bonobo_control_new (form);
	pb = bonobo_property_bag_new (get_prop_cb, set_prop_cb, form);
	bonobo_property_bag_add (pb, "theme", 0, BONOBO_ARG_STRING, NULL,
				 "The currently previewed theme",
				 BONOBO_PROPERTY_READABLE |
				 BONOBO_PROPERTY_WRITEABLE);
	bonobo_control_set_properties (control, BONOBO_OBJREF (pb), NULL);
	bonobo_object_unref (BONOBO_OBJECT (pb));

	return BONOBO_OBJECT (control);
}

static BonoboObject *
control_factory (BonoboGenericFactory *factory, const char *id, gpointer data)
{
	BonoboObject *object = NULL;

	g_return_val_if_fail (id != NULL, NULL);

	if (!strcmp (id, "OAFIID:GNOME_Theme_Preview"))
		object = gnome_theme_preview_new ();

	return object;
}

BONOBO_ACTIVATION_FACTORY ("OAFIID:GNOME_Theme_PreviewFactory",
			   "gnome-theme-preview", VERSION,
			   control_factory, NULL);