text: /* simple.c
   * Copyright (C) 1997  Red Hat, Inc
   * Author: Elliot Lee
   *
   * 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
   * License along with this library. If not, see <http://www.gnu.org/licenses/>.
   */
  #include <gtk/gtk.h>
  #include <string.h>
  
  static char *
  get_content (void)
  {
    GString *s;
    int i;
  
    s = g_string_new ("");
    for (i = 1; i <= 150; i++)
      g_string_append_printf (s, "Line %d\n", i);
  
    return g_string_free (s, FALSE);
  }
  
  static void
  mode_changed (GtkComboBox *combo, GtkScrolledWindow *sw)
  {
    int active = gtk_combo_box_get_active (combo);
  
    gtk_scrolled_window_set_overlay_scrolling (sw, active == 1);
  }
  
  static void
  quit_cb (GtkWidget *widget,
           gpointer   data)
  {
    gboolean *done = data;
  
    *done = TRUE;
  
    g_main_context_wakeup (NULL);
  }
  
  int
  main (int argc, char *argv[])
  {
    GtkWidget *window;
    char *content;
    GtkWidget *box;
    GtkWidget *sw;
    GtkWidget *tv;
    GtkWidget *sb2;
    GtkWidget *combo;
    GtkAdjustment *adj;
    gboolean done = FALSE;
  
    gtk_init ();
  
    window = gtk_window_new ();
    gtk_window_set_default_size (GTK_WINDOW (window), 640, 480);
    g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
  
    box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 20);
    gtk_window_set_child (GTK_WINDOW (window), box);
  
    sw = gtk_scrolled_window_new ();
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                    GTK_POLICY_NEVER,
                                    GTK_POLICY_AUTOMATIC);
  
    gtk_widget_set_hexpand (sw, TRUE);
    gtk_box_append (GTK_BOX (box), sw);
  
    content = get_content ();
  
    tv = gtk_text_view_new ();
    gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (tv), GTK_WRAP_WORD);
    gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), tv);
    gtk_text_buffer_set_text (gtk_text_view_get_buffer (GTK_TEXT_VIEW (tv)),
                              content, -1);
    g_free (content);
  
    adj = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (tv));
  
    combo = gtk_combo_box_text_new ();
    gtk_widget_set_valign (combo, GTK_ALIGN_START);
    gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Traditional");
    gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Overlay");
    g_signal_connect (combo, "changed", G_CALLBACK (mode_changed), sw);
    gtk_combo_box_set_active (GTK_COMBO_BOX (combo), 1);
  
    gtk_box_append (GTK_BOX (box), combo);
  
    sb2 = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, adj);
    gtk_box_append (GTK_BOX (box), sb2);
  
    gtk_widget_show (window);
  
    while (!done)
      g_main_context_iteration (NULL, TRUE);
  
    return 0;
  }
  