testgtk.c 253 KB
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/* GTK - The GIMP Toolkit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
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 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
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 */
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/*
 * Modified by the GTK+ Team and others 1997-1999.  See the AUTHORS
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 */

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#include "config.h"

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#undef	G_LOG_DOMAIN
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#include <stdio.h>
#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <math.h>
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#include <time.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif

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#include "gtk.h"
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#include "gdk/gdk.h"
#include "gdk/gdkkeysyms.h"
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#include "circles.xbm"
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#include "test.xpm"
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typedef struct _OptionMenuItem
{
  gchar        *name;
  GtkSignalFunc func;
} OptionMenuItem;

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gboolean
file_exists (const char *filename)
{
  struct stat statbuf;

  return stat (filename, &statbuf) == 0;
}

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GtkWidget *
shape_create_icon (char     *xpm_file,
		   gint      x,
		   gint      y,
		   gint      px,
		   gint      py,
		   gint      window_type);

static GtkWidget *
build_option_menu (OptionMenuItem items[],
		   gint           num_items,
		   gint           history,
		   gpointer       data);
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/* macro, structure and variables used by tree window demos */
#define DEFAULT_NUMBER_OF_ITEM  3
#define DEFAULT_RECURSION_LEVEL 3

struct {
  GSList* selection_mode_group;
  GtkWidget* single_button;
  GtkWidget* browse_button;
  GtkWidget* multiple_button;
  GtkWidget* draw_line_button;
  GtkWidget* view_line_button;
  GtkWidget* no_root_item_button;
  GtkWidget* nb_item_spinner;
  GtkWidget* recursion_spinner;
} sTreeSampleSelection;

typedef struct sTreeButtons {
  guint nb_item_add;
  GtkWidget* add_button;
  GtkWidget* remove_button;
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  GtkWidget* subtree_button;
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} sTreeButtons;
/* end of tree section */

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static GtkWidget *
build_option_menu (OptionMenuItem items[],
		   gint           num_items,
		   gint           history,
		   gpointer       data)
{
  GtkWidget *omenu;
  GtkWidget *menu;
  GtkWidget *menu_item;
  GSList *group;
  gint i;

  omenu = gtk_option_menu_new ();
      
  menu = gtk_menu_new ();
  group = NULL;
  
  for (i = 0; i < num_items; i++)
    {
      menu_item = gtk_radio_menu_item_new_with_label (group, items[i].name);
      gtk_signal_connect (GTK_OBJECT (menu_item), "activate",
			  (GtkSignalFunc) items[i].func, data);
      group = gtk_radio_menu_item_group (GTK_RADIO_MENU_ITEM (menu_item));
      gtk_menu_append (GTK_MENU (menu), menu_item);
      if (i == history)
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	gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menu_item), TRUE);
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      gtk_widget_show (menu_item);
    }

  gtk_option_menu_set_menu (GTK_OPTION_MENU (omenu), menu);
  gtk_option_menu_set_history (GTK_OPTION_MENU (omenu), history);
  
  return omenu;
}

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static void
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destroy_tooltips (GtkWidget *widget, GtkWindow **window)
{
  GtkTooltips *tt = gtk_object_get_data (GTK_OBJECT (*window), "tooltips");
  gtk_object_unref (GTK_OBJECT (tt));
  *window = NULL;
}

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/*
 * GtkButton
 */

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static void
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button_window (GtkWidget *widget,
	       GtkWidget *button)
{
  if (!GTK_WIDGET_VISIBLE (button))
    gtk_widget_show (button);
  else
    gtk_widget_hide (button);
}

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static void
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create_buttons (void)
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{
  static GtkWidget *window = NULL;
  GtkWidget *box1;
  GtkWidget *box2;
  GtkWidget *table;
  GtkWidget *button[10];
  GtkWidget *separator;

  if (!window)
    {
      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

      gtk_signal_connect (GTK_OBJECT (window), "destroy",
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			  GTK_SIGNAL_FUNC (gtk_widget_destroyed),
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			  &window);

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      gtk_window_set_title (GTK_WINDOW (window), "GtkButton");
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      gtk_container_set_border_width (GTK_CONTAINER (window), 0);
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      box1 = gtk_vbox_new (FALSE, 0);
      gtk_container_add (GTK_CONTAINER (window), box1);

      table = gtk_table_new (3, 3, FALSE);
      gtk_table_set_row_spacings (GTK_TABLE (table), 5);
      gtk_table_set_col_spacings (GTK_TABLE (table), 5);
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      gtk_container_set_border_width (GTK_CONTAINER (table), 10);
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      gtk_box_pack_start (GTK_BOX (box1), table, TRUE, TRUE, 0);

      button[0] = gtk_button_new_with_label ("button1");
      button[1] = gtk_button_new_with_label ("button2");
      button[2] = gtk_button_new_with_label ("button3");
      button[3] = gtk_button_new_with_label ("button4");
      button[4] = gtk_button_new_with_label ("button5");
      button[5] = gtk_button_new_with_label ("button6");
      button[6] = gtk_button_new_with_label ("button7");
      button[7] = gtk_button_new_with_label ("button8");
      button[8] = gtk_button_new_with_label ("button9");

      gtk_signal_connect (GTK_OBJECT (button[0]), "clicked",
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			  GTK_SIGNAL_FUNC(button_window),
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			  button[1]);

      gtk_table_attach (GTK_TABLE (table), button[0], 0, 1, 0, 1,
			GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);

      gtk_signal_connect (GTK_OBJECT (button[1]), "clicked",
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			  GTK_SIGNAL_FUNC(button_window),
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			  button[2]);

      gtk_table_attach (GTK_TABLE (table), button[1], 1, 2, 1, 2,
			GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);

      gtk_signal_connect (GTK_OBJECT (button[2]), "clicked",
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			  GTK_SIGNAL_FUNC(button_window),
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			  button[3]);
      gtk_table_attach (GTK_TABLE (table), button[2], 2, 3, 2, 3,
			GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);

      gtk_signal_connect (GTK_OBJECT (button[3]), "clicked",
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			  GTK_SIGNAL_FUNC(button_window),
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			  button[4]);
      gtk_table_attach (GTK_TABLE (table), button[3], 0, 1, 2, 3,
			GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);

      gtk_signal_connect (GTK_OBJECT (button[4]), "clicked",
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			  GTK_SIGNAL_FUNC(button_window),
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			  button[5]);
      gtk_table_attach (GTK_TABLE (table), button[4], 2, 3, 0, 1,
			GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);

      gtk_signal_connect (GTK_OBJECT (button[5]), "clicked",
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			  GTK_SIGNAL_FUNC(button_window),
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			  button[6]);
      gtk_table_attach (GTK_TABLE (table), button[5], 1, 2, 2, 3,
			GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);

      gtk_signal_connect (GTK_OBJECT (button[6]), "clicked",
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			  GTK_SIGNAL_FUNC(button_window),
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			  button[7]);
      gtk_table_attach (GTK_TABLE (table), button[6], 1, 2, 0, 1,
			GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);

      gtk_signal_connect (GTK_OBJECT (button[7]), "clicked",
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			  GTK_SIGNAL_FUNC(button_window),
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			  button[8]);
      gtk_table_attach (GTK_TABLE (table), button[7], 2, 3, 1, 2,
			GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);

      gtk_signal_connect (GTK_OBJECT (button[8]), "clicked",
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			  GTK_SIGNAL_FUNC(button_window),
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			  button[0]);
      gtk_table_attach (GTK_TABLE (table), button[8], 0, 1, 1, 2,
			GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);

      separator = gtk_hseparator_new ();
      gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);

      box2 = gtk_vbox_new (FALSE, 10);
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      gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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      gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);

      button[9] = gtk_button_new_with_label ("close");
      gtk_signal_connect_object (GTK_OBJECT (button[9]), "clicked",
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				 GTK_SIGNAL_FUNC(gtk_widget_destroy),
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				 GTK_OBJECT (window));
      gtk_box_pack_start (GTK_BOX (box2), button[9], TRUE, TRUE, 0);
      GTK_WIDGET_SET_FLAGS (button[9], GTK_CAN_DEFAULT);
      gtk_widget_grab_default (button[9]);
    }

  if (!GTK_WIDGET_VISIBLE (window))
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    gtk_widget_show_all (window);
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  else
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    gtk_widget_hide (window);
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}

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/*
 * GtkToggleButton
 */

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static void
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create_toggle_buttons (void)
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{
  static GtkWidget *window = NULL;
  GtkWidget *box1;
  GtkWidget *box2;
  GtkWidget *button;
  GtkWidget *separator;

  if (!window)
    {
      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

      gtk_signal_connect (GTK_OBJECT (window), "destroy",
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			  GTK_SIGNAL_FUNC(gtk_widget_destroyed),
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			  &window);

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      gtk_window_set_title (GTK_WINDOW (window), "GtkToggleButton");
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      gtk_container_set_border_width (GTK_CONTAINER (window), 0);
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      box1 = gtk_vbox_new (FALSE, 0);
      gtk_container_add (GTK_CONTAINER (window), box1);

      box2 = gtk_vbox_new (FALSE, 10);
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      gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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      gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);

      button = gtk_toggle_button_new_with_label ("button1");
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      button = gtk_toggle_button_new_with_label ("button2");
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      button = gtk_toggle_button_new_with_label ("button3");
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      separator = gtk_hseparator_new ();
      gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);

      box2 = gtk_vbox_new (FALSE, 10);
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      gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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      gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);

      button = gtk_button_new_with_label ("close");
      gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
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				 GTK_SIGNAL_FUNC(gtk_widget_destroy),
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				 GTK_OBJECT (window));
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
      GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
      gtk_widget_grab_default (button);
    }

  if (!GTK_WIDGET_VISIBLE (window))
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    gtk_widget_show_all (window);
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  else
    gtk_widget_destroy (window);
}

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/*
 * GtkCheckButton
 */

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static void
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create_check_buttons (void)
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{
  static GtkWidget *window = NULL;
  GtkWidget *box1;
  GtkWidget *box2;
  GtkWidget *button;
  GtkWidget *separator;

  if (!window)
    {
      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

      gtk_signal_connect (GTK_OBJECT (window), "destroy",
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			  GTK_SIGNAL_FUNC(gtk_widget_destroyed),
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			  &window);

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      gtk_window_set_title (GTK_WINDOW (window), "GtkCheckButton");
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      gtk_container_set_border_width (GTK_CONTAINER (window), 0);
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      box1 = gtk_vbox_new (FALSE, 0);
      gtk_container_add (GTK_CONTAINER (window), box1);

      box2 = gtk_vbox_new (FALSE, 10);
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      gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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      gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);

      button = gtk_check_button_new_with_label ("button1");
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      button = gtk_check_button_new_with_label ("button2");
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      button = gtk_check_button_new_with_label ("button3");
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      separator = gtk_hseparator_new ();
      gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);

      box2 = gtk_vbox_new (FALSE, 10);
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      gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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      gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);

      button = gtk_button_new_with_label ("close");
      gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
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				 GTK_SIGNAL_FUNC(gtk_widget_destroy),
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				 GTK_OBJECT (window));
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
      GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
      gtk_widget_grab_default (button);
    }

  if (!GTK_WIDGET_VISIBLE (window))
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    gtk_widget_show_all (window);
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  else
    gtk_widget_destroy (window);
}

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/*
 * GtkRadioButton
 */

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static void
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create_radio_buttons (void)
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{
  static GtkWidget *window = NULL;
  GtkWidget *box1;
  GtkWidget *box2;
  GtkWidget *button;
  GtkWidget *separator;

  if (!window)
    {
      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

      gtk_signal_connect (GTK_OBJECT (window), "destroy",
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			  GTK_SIGNAL_FUNC(gtk_widget_destroyed),
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			  &window);

      gtk_window_set_title (GTK_WINDOW (window), "radio buttons");
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      gtk_container_set_border_width (GTK_CONTAINER (window), 0);
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      box1 = gtk_vbox_new (FALSE, 0);
      gtk_container_add (GTK_CONTAINER (window), box1);

      box2 = gtk_vbox_new (FALSE, 10);
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      gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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      gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);

      button = gtk_radio_button_new_with_label (NULL, "button1");
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      button = gtk_radio_button_new_with_label (
	         gtk_radio_button_group (GTK_RADIO_BUTTON (button)),
		 "button2");
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      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
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      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      button = gtk_radio_button_new_with_label (
                 gtk_radio_button_group (GTK_RADIO_BUTTON (button)),
		 "button3");
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      separator = gtk_hseparator_new ();
      gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);

      box2 = gtk_vbox_new (FALSE, 10);
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      gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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      gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);

      button = gtk_button_new_with_label ("close");
      gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
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				 GTK_SIGNAL_FUNC(gtk_widget_destroy),
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				 GTK_OBJECT (window));
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
      GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
      gtk_widget_grab_default (button);
    }

  if (!GTK_WIDGET_VISIBLE (window))
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    gtk_widget_show_all (window);
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  else
    gtk_widget_destroy (window);
}

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/*
 * GtkButtonBox
 */
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static GtkWidget *
create_bbox (gint  horizontal,
	     char* title, 
	     gint  spacing,
	     gint  child_w, 
	     gint  child_h, 
	     gint  layout)
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{
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  GtkWidget *frame;
  GtkWidget *bbox;
  GtkWidget *button;
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  frame = gtk_frame_new (title);
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  if (horizontal)
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    bbox = gtk_hbutton_box_new ();
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  else
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    bbox = gtk_vbutton_box_new ();

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  gtk_container_set_border_width (GTK_CONTAINER (bbox), 5);
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  gtk_container_add (GTK_CONTAINER (frame), bbox);

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  gtk_button_box_set_layout (GTK_BUTTON_BOX (bbox), layout);
  gtk_button_box_set_spacing (GTK_BUTTON_BOX (bbox), spacing);
  gtk_button_box_set_child_size (GTK_BUTTON_BOX (bbox), child_w, child_h);
  
  button = gtk_button_new_with_label ("OK");
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  gtk_container_add (GTK_CONTAINER (bbox), button);
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  button = gtk_button_new_with_label ("Cancel");
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  gtk_container_add (GTK_CONTAINER (bbox), button);
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  button = gtk_button_new_with_label ("Help");
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  gtk_container_add (GTK_CONTAINER (bbox), button);
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  return frame;
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}

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static void
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create_button_box (void)
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{
  static GtkWidget* window = NULL;
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  GtkWidget *main_vbox;
  GtkWidget *vbox;
  GtkWidget *hbox;
  GtkWidget *frame_horz;
  GtkWidget *frame_vert;
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  if (!window)
  {
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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    gtk_window_set_title (GTK_WINDOW (window), "Button Boxes");
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    gtk_signal_connect (GTK_OBJECT (window), "destroy",
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			GTK_SIGNAL_FUNC(gtk_widget_destroyed),
			&window);
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    gtk_container_set_border_width (GTK_CONTAINER (window), 10);
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    main_vbox = gtk_vbox_new (FALSE, 0);
    gtk_container_add (GTK_CONTAINER (window), main_vbox);
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    frame_horz = gtk_frame_new ("Horizontal Button Boxes");
    gtk_box_pack_start (GTK_BOX (main_vbox), frame_horz, TRUE, TRUE, 10);
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    vbox = gtk_vbox_new (FALSE, 0);
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    gtk_container_set_border_width (GTK_CONTAINER (vbox), 10);
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    gtk_container_add (GTK_CONTAINER (frame_horz), vbox);

    gtk_box_pack_start (GTK_BOX (vbox), 
	   create_bbox (TRUE, "Spread", 40, 85, 20, GTK_BUTTONBOX_SPREAD),
			TRUE, TRUE, 0);

    gtk_box_pack_start (GTK_BOX (vbox), 
	   create_bbox (TRUE, "Edge", 40, 85, 20, GTK_BUTTONBOX_EDGE),
			TRUE, TRUE, 5);

    gtk_box_pack_start (GTK_BOX (vbox), 
	   create_bbox (TRUE, "Start", 40, 85, 20, GTK_BUTTONBOX_START),
			TRUE, TRUE, 5);

    gtk_box_pack_start (GTK_BOX (vbox), 
	   create_bbox (TRUE, "End", 40, 85, 20, GTK_BUTTONBOX_END),
			TRUE, TRUE, 5);

    frame_vert = gtk_frame_new ("Vertical Button Boxes");
    gtk_box_pack_start (GTK_BOX (main_vbox), frame_vert, TRUE, TRUE, 10);
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    hbox = gtk_hbox_new (FALSE, 0);
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    gtk_container_set_border_width (GTK_CONTAINER (hbox), 10);
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    gtk_container_add (GTK_CONTAINER (frame_vert), hbox);

    gtk_box_pack_start (GTK_BOX (hbox), 
	   create_bbox (FALSE, "Spread", 30, 85, 20, GTK_BUTTONBOX_SPREAD),
			TRUE, TRUE, 0);

    gtk_box_pack_start (GTK_BOX (hbox), 
	   create_bbox (FALSE, "Edge", 30, 85, 20, GTK_BUTTONBOX_EDGE),
			TRUE, TRUE, 5);

    gtk_box_pack_start (GTK_BOX (hbox), 
	   create_bbox (FALSE, "Start", 30, 85, 20, GTK_BUTTONBOX_START),
			TRUE, TRUE, 5);

    gtk_box_pack_start (GTK_BOX (hbox), 
	   create_bbox (FALSE, "End", 30, 85, 20, GTK_BUTTONBOX_END),
			TRUE, TRUE, 5);
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  }

  if (!GTK_WIDGET_VISIBLE (window))
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    gtk_widget_show_all (window);
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  else
    gtk_widget_destroy (window);
}

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/*
 * GtkToolBar
 */

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static GtkWidget*
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new_pixmap (char      *filename,
	    GdkWindow *window,
	    GdkColor  *background)
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{
  GtkWidget *wpixmap;
  GdkPixmap *pixmap;
  GdkBitmap *mask;

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  if (strcmp (filename, "test.xpm") == 0 ||
      !file_exists (filename))
    {
      pixmap = gdk_pixmap_create_from_xpm_d (window, &mask,
					     background,
					     openfile);
    }
  else
    pixmap = gdk_pixmap_create_from_xpm (window, &mask,
					 background,
					 filename);
  
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  wpixmap = gtk_pixmap_new (pixmap, mask);

  return wpixmap;
}

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static void
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set_toolbar_horizontal (GtkWidget *widget,
			gpointer   data)
{
  gtk_toolbar_set_orientation (GTK_TOOLBAR (data), GTK_ORIENTATION_HORIZONTAL);
}

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static void
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set_toolbar_vertical (GtkWidget *widget,
		      gpointer   data)
{
  gtk_toolbar_set_orientation (GTK_TOOLBAR (data), GTK_ORIENTATION_VERTICAL);
}

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static void
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set_toolbar_icons (GtkWidget *widget,
		   gpointer   data)
{
  gtk_toolbar_set_style (GTK_TOOLBAR (data), GTK_TOOLBAR_ICONS);
}

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static void
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set_toolbar_text (GtkWidget *widget,
	          gpointer   data)
{
  gtk_toolbar_set_style (GTK_TOOLBAR (data), GTK_TOOLBAR_TEXT);
}

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static void
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set_toolbar_both (GtkWidget *widget,
		  gpointer   data)
{
  gtk_toolbar_set_style (GTK_TOOLBAR (data), GTK_TOOLBAR_BOTH);
}

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static void
set_toolbar_both_horiz (GtkWidget *widget,
			gpointer   data)
{
  gtk_toolbar_set_style (GTK_TOOLBAR (data), GTK_TOOLBAR_BOTH_HORIZ);
}

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static void
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set_toolbar_small_space (GtkWidget *widget,
			 gpointer   data)
{
  gtk_toolbar_set_space_size (GTK_TOOLBAR (data), 5);
}

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static void
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set_toolbar_big_space (GtkWidget *widget,
		       gpointer   data)
{
  gtk_toolbar_set_space_size (GTK_TOOLBAR (data), 10);
}

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static void
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set_toolbar_enable (GtkWidget *widget,
		    gpointer   data)
{
  gtk_toolbar_set_tooltips (GTK_TOOLBAR (data), TRUE);
}

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static void
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set_toolbar_disable (GtkWidget *widget,
		     gpointer   data)
{
  gtk_toolbar_set_tooltips (GTK_TOOLBAR (data), FALSE);
}

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static void
set_toolbar_borders (GtkWidget *widget,
		     gpointer   data)
{
  gtk_toolbar_set_button_relief (GTK_TOOLBAR (data), GTK_RELIEF_NORMAL);
}

static void
set_toolbar_borderless (GtkWidget *widget,
			gpointer   data)
{
  gtk_toolbar_set_button_relief (GTK_TOOLBAR (data), GTK_RELIEF_NONE);
}

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static void
set_toolbar_space_style_empty (GtkWidget *widget,
			       gpointer   data)
{
  gtk_toolbar_set_space_style (GTK_TOOLBAR (data), GTK_TOOLBAR_SPACE_EMPTY);
}

static void
set_toolbar_space_style_line (GtkWidget *widget,
			      gpointer   data)
{
  gtk_toolbar_set_space_style (GTK_TOOLBAR (data), GTK_TOOLBAR_SPACE_LINE);
}

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static void
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create_toolbar (void)
{
  static GtkWidget *window = NULL;
  GtkWidget *toolbar;
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  GtkWidget *entry;
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  if (!window)
    {
      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
      gtk_window_set_title (GTK_WINDOW (window), "Toolbar test");
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      gtk_window_set_policy (GTK_WINDOW (window), FALSE, TRUE, TRUE);
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      gtk_signal_connect (GTK_OBJECT (window), "destroy",
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			  GTK_SIGNAL_FUNC (gtk_widget_destroyed),
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			  &window);

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      gtk_container_set_border_width (GTK_CONTAINER (window), 0);
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      gtk_widget_realize (window);

      toolbar = gtk_toolbar_new (GTK_ORIENTATION_HORIZONTAL, GTK_TOOLBAR_BOTH);
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      gtk_toolbar_set_button_relief (GTK_TOOLBAR (toolbar), GTK_RELIEF_NONE);
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      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			       "Horizontal", "Horizontal toolbar layout", "Toolbar/Horizontal",
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			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			       (GtkSignalFunc) set_toolbar_horizontal, toolbar);
      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			       "Vertical", "Vertical toolbar layout", "Toolbar/Vertical",
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			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			       (GtkSignalFunc) set_toolbar_vertical, toolbar);

      gtk_toolbar_append_space (GTK_TOOLBAR(toolbar));

      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			       "Icons", "Only show toolbar icons", "Toolbar/IconsOnly",
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			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			       (GtkSignalFunc) set_toolbar_icons, toolbar);
      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			       "Text", "Only show toolbar text", "Toolbar/TextOnly",
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			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			       (GtkSignalFunc) set_toolbar_text, toolbar);
      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			       "Both", "Show toolbar icons and text", "Toolbar/Both",
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			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			       (GtkSignalFunc) set_toolbar_both, toolbar);
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      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
			       "Both (horizontal)",
			       "Show toolbar icons and text in a horizontal fashion",
			       "Toolbar/BothHoriz",
			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
			       (GtkSignalFunc) set_toolbar_both_horiz, toolbar);
			       
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      gtk_toolbar_append_space (GTK_TOOLBAR (toolbar));

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      entry = gtk_entry_new ();
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      gtk_toolbar_append_widget (GTK_TOOLBAR (toolbar), entry, "This is an unusable GtkEntry ;)", "Hey don't click me!!!");
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      gtk_toolbar_append_space (GTK_TOOLBAR (toolbar));

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      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			       "Small", "Use small spaces", "Toolbar/Small",
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			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			       (GtkSignalFunc) set_toolbar_small_space, toolbar);
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      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			       "Big", "Use big spaces", "Toolbar/Big",
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			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			       (GtkSignalFunc) set_toolbar_big_space, toolbar);

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      gtk_toolbar_append_space (GTK_TOOLBAR (toolbar));
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      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			       "Enable", "Enable tooltips", NULL,
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			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			       (GtkSignalFunc) set_toolbar_enable, toolbar);
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      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			       "Disable", "Disable tooltips", NULL,
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			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			       (GtkSignalFunc) set_toolbar_disable, toolbar);
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      gtk_toolbar_append_space (GTK_TOOLBAR (toolbar));

      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
			       "Borders", "Show Borders", NULL,
			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
			       (GtkSignalFunc) set_toolbar_borders, toolbar);
      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
			       "Borderless", "Hide Borders", NULL,
			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
			       (GtkSignalFunc) set_toolbar_borderless, toolbar);

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      gtk_toolbar_append_space (GTK_TOOLBAR (toolbar));
      
      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
			       "Empty", "Empty spaces", NULL,
			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
			       (GtkSignalFunc) set_toolbar_space_style_empty, toolbar);
      gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
			       "Lines", "Lines in spaces", NULL,
			       new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
			       (GtkSignalFunc) set_toolbar_space_style_line, toolbar);

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      gtk_container_add (GTK_CONTAINER (window), toolbar);
    }

  if (!GTK_WIDGET_VISIBLE (window))
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    gtk_widget_show_all (window);
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  else
    gtk_widget_destroy (window);
}

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static GtkWidget*
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make_toolbar (GtkWidget *window)
{
  GtkWidget *toolbar;

  if (!GTK_WIDGET_REALIZED (window))
    gtk_widget_realize (window);

  toolbar = gtk_toolbar_new (GTK_ORIENTATION_HORIZONTAL, GTK_TOOLBAR_BOTH);
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  gtk_toolbar_set_button_relief (GTK_TOOLBAR (toolbar), GTK_RELIEF_NONE);
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  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			   "Horizontal", "Horizontal toolbar layout", NULL,
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			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			   (GtkSignalFunc) set_toolbar_horizontal, toolbar);
  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			   "Vertical", "Vertical toolbar layout", NULL,
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			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			   (GtkSignalFunc) set_toolbar_vertical, toolbar);

  gtk_toolbar_append_space (GTK_TOOLBAR(toolbar));

  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			   "Icons", "Only show toolbar icons", NULL,
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			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			   (GtkSignalFunc) set_toolbar_icons, toolbar);
  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			   "Text", "Only show toolbar text", NULL,
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			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			   (GtkSignalFunc) set_toolbar_text, toolbar);
  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			   "Both", "Show toolbar icons and text", NULL,
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			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			   (GtkSignalFunc) set_toolbar_both, toolbar);

  gtk_toolbar_append_space (GTK_TOOLBAR (toolbar));

  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			   "Small", "Use small spaces", NULL,
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			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			   (GtkSignalFunc) set_toolbar_small_space, toolbar);
  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			   "Big", "Use big spaces", "Toolbar/Big",
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			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			   (GtkSignalFunc) set_toolbar_big_space, toolbar);

  gtk_toolbar_append_space (GTK_TOOLBAR (toolbar));

  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			   "Enable", "Enable tooltips", NULL,
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			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			   (GtkSignalFunc) set_toolbar_enable, toolbar);
  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
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			   "Disable", "Disable tooltips", NULL,
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			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
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			   (GtkSignalFunc) set_toolbar_disable, toolbar);

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  gtk_toolbar_append_space (GTK_TOOLBAR (toolbar));
  
  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
			   "Borders", "Show Borders", NULL,
			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
			   (GtkSignalFunc) set_toolbar_borders, toolbar);
  gtk_toolbar_append_item (GTK_TOOLBAR (toolbar),
			   "Borderless", "Hide Borders", NULL,
			   new_pixmap ("test.xpm", window->window, &window->style->bg[GTK_STATE_NORMAL]),
			   (GtkSignalFunc) set_toolbar_borderless, toolbar);

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  return toolbar;
}

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/*
 * GtkStatusBar
 */

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static guint statusbar_counter = 1;

static void
statusbar_push (GtkWidget *button,
		GtkStatusbar *statusbar)
{
  gchar text[1024];

  sprintf (text, "something %d", statusbar_counter++);

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  gtk_statusbar_push (statusbar, 1, text);
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}

static void
statusbar_pop (GtkWidget *button,
	       GtkStatusbar *statusbar)
{
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  gtk_statusbar_pop (statusbar, 1);
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}

static void
statusbar_steal (GtkWidget *button,
	         GtkStatusbar *statusbar)
{
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  gtk_statusbar_remove (statusbar, 1, 4);
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}

static void
statusbar_popped (GtkStatusbar  *statusbar,
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		  guint          context_id,
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		  const gchar	*text)
{
  if (!statusbar->messages)
    statusbar_counter = 1;
}

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static void
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statusbar_contexts (GtkStatusbar *statusbar)
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{
  gchar *string;

  string = "any context";
  g_print ("GtkStatusBar: context=\"%s\", context_id=%d\n",
	   string,
	   gtk_statusbar_get_context_id (statusbar, string));
  
  string = "idle messages";
  g_print ("GtkStatusBar: context=\"%s\", context_id=%d\n",
	   string,
	   gtk_statusbar_get_context_id (statusbar, string));
  
  string = "some text";
  g_print ("GtkStatusBar: context=\"%s\", context_id=%d\n",
	   string,
	   gtk_statusbar_get_context_id (statusbar, string));

  string = "hit the mouse";
  g_print ("GtkStatusBar: context=\"%s\", context_id=%d\n",
	   string,
	   gtk_statusbar_get_context_id (statusbar, string));

  string = "hit the mouse2";
  g_print ("GtkStatusBar: context=\"%s\", context_id=%d\n",
	   string,
	   gtk_statusbar_get_context_id (statusbar, string));
}

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static void
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statusbar_dump_stack (GtkStatusbar *statusbar)
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{
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  GSList *list;
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  for (list = statusbar->messages; list; list = list->next)
    {
      GtkStatusbarMsg *msg;

      msg = list->data;
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      g_print ("context_id: %d, message_id: %d, status_text: \"%s\"\n",
               msg->context_id,
               msg->message_id,
               msg->text);
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    }
}

static void
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create_statusbar (void)
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{
  static GtkWidget *window = NULL;
  GtkWidget *box1;
  GtkWidget *box2;
  GtkWidget *button;
  GtkWidget *separator;
  GtkWidget *statusbar;

  if (!window)
    {
      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

      gtk_signal_connect (GTK_OBJECT (window), "destroy",
			  GTK_SIGNAL_FUNC (gtk_widget_destroyed),
			  &window);

      gtk_window_set_title (GTK_WINDOW (window), "statusbar");
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      gtk_container_set_border_width (GTK_CONTAINER (window), 0);
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      box1 = gtk_vbox_new (FALSE, 0);
      gtk_container_add (GTK_CONTAINER (window), box1);

      box2 = gtk_vbox_new (FALSE, 10);
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      gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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      gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);

      statusbar = gtk_statusbar_new ();
      gtk_box_pack_end (GTK_BOX (box1), statusbar, TRUE, TRUE, 0);
      gtk_signal_connect (GTK_OBJECT (statusbar),
			  "text_popped",
			  GTK_SIGNAL_FUNC (statusbar_popped),
			  NULL);

      button = gtk_widget_new (gtk_button_get_type (),
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			       "label", "push something",
			       "visible", TRUE,
			       "parent", box2,
			       "signal::clicked", statusbar_push, statusbar,
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			       NULL);

      button = gtk_widget_new (gtk_button_get_type (),
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			       "label", "pop",
			       "visible", TRUE,
			       "parent", box2,
			       "signal_after::clicked", statusbar_pop, statusbar,
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			       NULL);

      button = gtk_widget_new (gtk_button_get_type (),
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			       "label", "steal #4",
			       "visible", TRUE,
			       "parent", box2,
			       "signal_after::clicked", statusbar_steal, statusbar,
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			       NULL);

      button = gtk_widget_new (gtk_button_get_type (),
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			       "label", "dump stack",
			       "visible", TRUE,
			       "parent", box2,
			       "object_signal::clicked", statusbar_dump_stack, statusbar,
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			       NULL);

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      button = gtk_widget_new (gtk_button_get_type (),
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			       "label", "test contexts",
			       "visible", TRUE,
			       "parent", box2,
			       "object_signal_after::clicked", statusbar_contexts, statusbar,
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			       NULL);

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      separator = gtk_hseparator_new ();
      gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);

      box2 = gtk_vbox_new (FALSE, 10);
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      gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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      gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);

      button = gtk_button_new_with_label ("close");
      gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
				 GTK_SIGNAL_FUNC(gtk_widget_destroy),
				 GTK_OBJECT (window));
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
      GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
      gtk_widget_grab_default (button);
    }

  if (!GTK_WIDGET_VISIBLE (window))
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    gtk_widget_show_all (window);
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  else
    gtk_widget_destroy (window);
}

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/*
 * GtkTree
 */
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static void
cb_tree_destroy_event(GtkWidget* w)
{
  sTreeButtons* tree_buttons;

  /* free buttons structure associate at this tree */
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  tree_buttons = gtk_object_get_user_data (GTK_OBJECT (w));
  g_free (tree_buttons);
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}
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static void
cb_add_new_item(GtkWidget* w, GtkTree* tree)
{
  sTreeButtons* tree_buttons;
  GList* selected_list;
  GtkWidget* selected_item;
  GtkWidget* subtree;
  GtkWidget* item_new;
  char buffer[255];

  tree_buttons = gtk_object_get_user_data(GTK_OBJECT(tree));

  selected_list = GTK_TREE_SELECTION(tree);

  if(selected_list == NULL)
    {
      /* there is no item in tree */
      subtree = GTK_WIDGET(tree);
    }
  else
    {
      /* list can have only one element */
      selected_item = GTK_WIDGET(selected_list->data);
      
      subtree = GTK_TREE_ITEM_SUBTREE(selected_item);

      if(subtree == NULL)
	{
	  /* current selected item have not subtree ... create it */
	  subtree = gtk_tree_new();
	  gtk_tree_item_set_subtree(GTK_TREE_ITEM(selected_item), 
				    subtree);
	}
    }

  /* at this point, we know which subtree will be used to add new item */
  /* create a new item */
  sprintf(buffer, "item add %d", tree_buttons->nb_item_add);
  item_new = gtk_tree_item_new_with_label(buffer);
  gtk_tree_append(GTK_TREE(subtree), item_new);
  gtk_widget_show(item_new);

  tree_buttons->nb_item_add++;
}

static void
cb_remove_item(GtkWidget*w, GtkTree* tree)
{
  GList* selected_list;
  GList* clear_list;
  
  selected_list = GTK_TREE_SELECTION(tree);

  clear_list = NULL;
    
  while (selected_list) 
    {
      clear_list = g_list_prepend (clear_list, selected_list->data);
      selected_list = selected_list->next;
    }
  
  clear_list = g_list_reverse (clear_list);
  gtk_tree_remove_items(tree, clear_list);

  g_list_free (clear_list);
}

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static void
cb_remove_subtree(GtkWidget*w, GtkTree* tree)
{
  GList* selected_list;
  GtkTreeItem *item;
  
  selected_list = GTK_TREE_SELECTION(tree);

  if (selected_list)
    {
      item = GTK_TREE_ITEM (selected_list->data);
      if (item->subtree)
	gtk_tree_item_remove_subtree (item);
    }
}

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static void
cb_tree_changed(GtkTree* tree)
{
  sTreeButtons* tree_buttons;
  GList* selected_list;
  guint nb_selected;

  tree_buttons = gtk_object_get_user_data(GTK_OBJECT(tree));

  selected_list = GTK_TREE_SELECTION(tree);
  nb_selected = g_list_length(selected_list);

  if(nb_selected == 0) 
    {
      if(tree->children == NULL)
	gtk_widget_set_sensitive(tree_buttons->add_button, TRUE);
      else
	gtk_widget_set_sensitive(tree_buttons->add_button, FALSE);
      gtk_widget_set_sensitive(tree_buttons->remove_button, FALSE);
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      gtk_widget_set_sensitive(tree_buttons->subtree_button, FALSE);
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    } 
  else 
    {
      gtk_widget_set_sensitive(tree_buttons->remove_button, TRUE);
      gtk_widget_set_sensitive(tree_buttons->add_button, (nb_selected == 1));
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      gtk_widget_set_sensitive(tree_buttons->subtree_button, (nb_selected == 1));
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    }  
}

static void 
create_subtree(GtkWidget* item, guint level, guint nb_item_max, guint recursion_level_max)
{
  GtkWidget* item_subtree;
  GtkWidget* item_new;
  guint nb_item;
  char buffer[255];
  int no_root_item;

  if(level == recursion_level_max) return;

  if(level == -1)
    {
      /* query with no root item */
      level = 0;
      item_subtree = item;
      no_root_item = 1;
    }
  else
    {
      /* query with no root item */
      /* create subtree and associate it with current item */
      item_subtree = gtk_tree_new();
      no_root_item = 0;
    }
  
  for(nb_item = 0; nb_item < nb_item_max; nb_item++)
    {
      sprintf(buffer, "item %d-%d", level, nb_item);
      item_new = gtk_tree_item_new_with_label(buffer);
      gtk_tree_append(GTK_TREE(item_subtree), item_new);
      create_subtree(item_new, level+1, nb_item_max, recursion_level_max);
      gtk_widget_show(item_new);
    }

  if(!no_root_item)
    gtk_tree_item_set_subtree(GTK_TREE_ITEM(item), item_subtree);
}

static void
create_tree_sample(guint selection_mode, 
		   guint draw_line, guint view_line, guint no_root_item,
		   guint nb_item_max, guint recursion_level_max) 
{
  GtkWidget* window;
  GtkWidget* box1;
  GtkWidget* box2;
  GtkWidget* separator;
  GtkWidget* button;
  GtkWidget* scrolled_win;
  GtkWidget* root_tree;
  GtkWidget* root_item;
  sTreeButtons* tree_buttons;

  /* create tree buttons struct */
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  if ((tree_buttons = g_malloc (sizeof (sTreeButtons))) == NULL)
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    {
      g_error("can't allocate memory for tree structure !\n");
      return;
    }
  tree_buttons->nb_item_add = 0;

  /* create top level window */
  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title(GTK_WINDOW(window), "Tree Sample");
  gtk_signal_connect(GTK_OBJECT(window), "destroy",
		     (GtkSignalFunc) cb_tree_destroy_event, NULL);
  gtk_object_set_user_data(GTK_OBJECT(window), tree_buttons);

  box1 = gtk_vbox_new(FALSE, 0);
  gtk_container_add(GTK_CONTAINER(window), box1);
  gtk_widget_show(box1);

  /* create tree box */
  box2 = gtk_vbox_new(FALSE, 0);
  gtk_box_pack_start(GTK_BOX(box1), box2, TRUE, TRUE, 0);
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  gtk_container_set_border_width(GTK_CONTAINER(box2), 5);
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  gtk_widget_show(box2);

  /* create scrolled window */
  scrolled_win = gtk_scrolled_window_new (NULL, NULL);
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
				  GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
  gtk_box_pack_start (GTK_BOX (box2), scrolled_win, TRUE, TRUE, 0);
  gtk_widget_set_usize (scrolled_win, 200, 200);
  gtk_widget_show (scrolled_win);
  
  /* create root tree widget */
  root_tree = gtk_tree_new();
  gtk_signal_connect(GTK_OBJECT(root_tree), "selection_changed",
		     (GtkSignalFunc)cb_tree_changed,
		     (gpointer)NULL);
  gtk_object_set_user_data(GTK_OBJECT(root_tree), tree_buttons);
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  gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scrolled_win), root_tree);
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  gtk_tree_set_selection_mode(GTK_TREE(root_tree), selection_mode);
  gtk_tree_set_view_lines(GTK_TREE(root_tree), draw_line);
  gtk_tree_set_view_mode(GTK_TREE(root_tree), !view_line);
  gtk_widget_show(root_tree);

  if ( no_root_item )
    {
      /* set root tree to subtree function with root item variable */
      root_item = GTK_WIDGET(root_tree);
    }
  else
    {
      /* create root tree item widget */
      root_item = gtk_tree_item_new_with_label("root item");
      gtk_tree_append(GTK_TREE(root_tree), root_item);
      gtk_widget_show(root_item);
     }
  create_subtree(root_item, -no_root_item, nb_item_max, recursion_level_max);

  box2 = gtk_vbox_new(FALSE, 0);
  gtk_box_pack_start(GTK_BOX(box1), box2, FALSE, FALSE, 0);
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  gtk_container_set_border_width(GTK_CONTAINER(box2), 5);
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  gtk_widget_show(box2);

  button = gtk_button_new_with_label("Add Item");
  gtk_widget_set_sensitive(button, FALSE);
  gtk_signal_connect(GTK_OBJECT (button), "clicked",
		     (GtkSignalFunc) cb_add_new_item, 
		     (gpointer)root_tree);
  gtk_box_pack_start(GTK_BOX(box2), button, TRUE, TRUE, 0);
  gtk_widget_show(button);
  tree_buttons->add_button = button;

  button = gtk_button_new_with_label("Remove Item(s)");
  gtk_widget_set_sensitive(button, FALSE);
  gtk_signal_connect(GTK_OBJECT (button), "clicked",
		     (GtkSignalFunc) cb_remove_item, 
		     (gpointer)root_tree);
  gtk_box_pack_start(GTK_BOX(box2), button, TRUE, TRUE, 0);
  gtk_widget_show(button);
  tree_buttons->remove_button = button;

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  button = gtk_button_new_with_label("Remove Subtree");
  gtk_widget_set_sensitive(button, FALSE);
  gtk_signal_connect(GTK_OBJECT (button), "clicked",
		     (GtkSignalFunc) cb_remove_subtree, 
		     (gpointer)root_tree);
  gtk_box_pack_start(GTK_BOX(box2), button, TRUE, TRUE, 0);
  gtk_widget_show(button);
  tree_buttons->subtree_button = button;

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  /* create separator */
  separator = gtk_hseparator_new();
  gtk_box_pack_start(GTK_BOX(box1), separator, FALSE, FALSE, 0);
  gtk_widget_show(separator);

  /* create button box */
  box2 = gtk_vbox_new(FALSE, 0);
  gtk_box_pack_start(GTK_BOX(box1), box2, FALSE, FALSE, 0);
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  gtk_container_set_border_width(GTK_CONTAINER(box2), 5);
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  gtk_widget_show(box2);

  button = gtk_button_new_with_label("Close");
  gtk_box_pack_start(GTK_BOX(box2), button, TRUE, TRUE, 0);
  gtk_signal_connect_object(GTK_OBJECT (button), "clicked",
			    (GtkSignalFunc) gtk_widget_destroy, 
			    GTK_OBJECT(window));
  gtk_widget_show(button);

  gtk_widget_show(window);
}

static void
cb_create_tree(GtkWidget* w)
{
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  guint selection_mode = GTK_SELECTION_SINGLE;
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  guint view_line;
  guint draw_line;
  guint no_root_item;
  guint nb_item;
  guint recursion_level;

  /* get selection mode choice */
  if(GTK_TOGGLE_BUTTON(sTreeSampleSelection.single_button)->active)
    selection_mode = GTK_SELECTION_SINGLE;
  else
    if(GTK_TOGGLE_BUTTON(sTreeSampleSelection.browse_button)->active)
      selection_mode = GTK_SELECTION_BROWSE;
    else
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      selection_mode = GTK_SELECTION_MULTIPLE;
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  /* get options choice */
  draw_line = GTK_TOGGLE_BUTTON(sTreeSampleSelection.draw_line_button)->active;
  view_line = GTK_TOGGLE_BUTTON(sTreeSampleSelection.view_line_button)->active;
  no_root_item = GTK_TOGGLE_BUTTON(sTreeSampleSelection.no_root_item_button)->active;
    
  /* get levels */
  nb_item = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(sTreeSampleSelection.nb_item_spinner));
  recursion_level = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(sTreeSampleSelection.recursion_spinner));

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  if (pow (nb_item, recursion_level) > 10000)
    {
      g_print ("%g total items? That will take a very long time. Try less\n",
	       pow (nb_item, recursion_level));
      return;
    }

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  create_tree_sample(selection_mode, draw_line, view_line, no_root_item, nb_item, recursion_level);
}

void 
create_tree_mode_window(void)
{
  static GtkWidget* window;
  GtkWidget* box1;
  GtkWidget* box2;
  GtkWidget* box3;
  GtkWidget* box4;
  GtkWidget* box5;
  GtkWidget* button;
  GtkWidget* frame;
  GtkWidget* separator;
  GtkWidget* label;
  GtkWidget* spinner;
  GtkAdjustment *adj;

  if (!window)
    {
      /* create toplevel window  */
      window = gtk_win