"not_editable", NULL);  gtk_text_buffer_insert_with_tags_by_name (buffer, &iter, "Wrapping. ", -1,					    "heading", NULL);  gtk_text_buffer_insert (buffer, &iter,			  "This line (and most of the others in this buffer) is word-wrapped, using the proper Unicode algorithm. Word wrap should work in all scripts and languages that GTK+ supports. Let's make this a long paragraph to demonstrate: blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah\n\n", -1);      gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,					    "This line has character-based wrapping, and can wrap between any two character glyphs. Let's make this a long paragraph to demonstrate: blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah\n\n", -1,					    "char_wrap", NULL);    gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,					    "This line has all wrapping turned off, so it makes the horizontal scrollbar appear.\n\n\n", -1,					    "no_wrap", NULL);  gtk_text_buffer_insert_with_tags_by_name (buffer, &iter, "Justification. ", -1,					    "heading", NULL);      gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,					    "\nThis line has center justification.\n", -1,					    "center", NULL);  gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,					    "This line has right justification.\n", -1,					    "right_justify", NULL);  gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,					    "\nThis line has big wide margins. Text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text.\n", -1,					    "wide_margins", NULL);    gtk_text_buffer_insert_with_tags_by_name (buffer, &iter, "Internationalization. ", -1,					    "heading", NULL);	    gtk_text_buffer_insert (buffer, &iter,			  "You can put all sorts of Unicode text in the buffer.\n\nGerman (Deutsch S\303\274d) Gr\303\274\303\237 Gott\nGreek (\316\225\316\273\316\273\316\267\316\275\316\271\316\272\316\254) \316\223\316\265\316\271\316\254 \317\203\316\261\317\202\nHebrew	\327\251\327\234\327\225\327\235\nJapanese (\346\227\245\346\234\254\350\252\236)\n\nThe widget properly handles bidirectional text, word wrapping, DOS/UNIX/Unicode paragraph separators, grapheme boundaries, and so on using the Pango internationalization framework.\n", -1);    gtk_text_buffer_insert (buffer, &iter, "Here's a word-wrapped quote in a right-to-left language:\n", -1);  gtk_text_buffer_insert_with_tags_by_name (buffer, &iter, "\331\210\331\202\330\257 \330\250\330\257\330\243 \330\253\331\204\330\247\330\253 \331\205\331\206 \330\243\331\203\330\253\330\261 \330\247\331\204\331\205\330\244\330\263\330\263\330\247\330\252 \330\252\331\202\330\257\331\205\330\247 \331\201\331\212 \330\264\330\250\331\203\330\251 \330\247\331\203\330\263\331\212\331\210\331\206 \330\250\330\261\330\247\331\205\330\254\331\207\330\247 \331\203\331\205\331\206\330\270\331\205\330\247\330\252 \331\204\330\247 \330\252\330\263\330\271\331\211 \331\204\331\204\330\261\330\250\330\255\330\214 \330\253\331\205 \330\252\330\255\331\210\331\204\330\252 \331\201\331\212 \330\247\331\204\330\263\331\206\331\210\330\247\330\252 \330\247\331\204\330\256\331\205\330\263 \330\247\331\204\331\205\330\247\330\266\331\212\330\251 \330\245\331\204\331\211 \331\205\330\244\330\263\330\263\330\247\330\252 \331\205\330\247\331\204\331\212\330\251 \331\205\331\206\330\270\331\205\330\251\330\214 \331\210\330\250\330\247\330\252\330\252 \330\254\330\262\330\241\330\247 \331\205\331\206 \330\247\331\204\331\206\330\270\330\247\331\205 \330\247\331\204\331\205\330\247\331\204\331\212 \331\201\331\212 \330\250\331\204\330\257\330\247\331\206\331\207\330\247\330\214 \331\210\331\204\331\203\331\206\331\207\330\247 \330\252\330\252\330\256\330\265\330\265 \331\201\331\212 \330\256\330\257\331\205\330\251 \331\202\330\267\330\247\330\271 \330\247\331\204\331\205\330\264\330\261\331\210\330\271\330\247\330\252 \330\247\331\204\330\265\330\272\331\212\330\261\330\251. \331\210\330\243\330\255\330\257 \330\243\331\203\330\253\330\261 \331\207\330\260\331\207 \330\247\331\204\331\205\330\244\330\263\330\263\330\247\330\252 \331\206\330\254\330\247\330\255\330\247 \331\207\331\210 \302\273\330\250\330\247\331\206\331\203\331\210\330\263\331\210\331\204\302\253 \331\201\331\212 \330\250\331\210\331\204\331\212\331\201\331\212\330\247.\n\n", -1,						"rtl_quote", NULL);        gtk_text_buffer_insert (buffer, &iter, "You can put widgets in the buffer: Here's a button: ", -1);  anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);  gtk_text_buffer_insert (buffer, &iter, " and a menu: ", -1);  anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);  gtk_text_buffer_insert (buffer, &iter, " and a scale: ", -1);  anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);  gtk_text_buffer_insert (buffer, &iter, " and an animation: ", -1);  anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);  gtk_text_buffer_insert (buffer, &iter, " finally a text entry: ", -1);  anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);  gtk_text_buffer_insert (buffer, &iter, ".\n", -1);    gtk_text_buffer_insert (buffer, &iter, "\n\nThis demo doesn't demonstrate all the GtkTextBuffer features; it leaves out, for example: invisible/hidden text (doesn't work in GTK 2, but planned), tab stops, application-drawn areas on the sides of the widget for displaying breakpoints and such...", -1);  /* Apply word_wrap tag to whole buffer */  gtk_text_buffer_get_bounds (buffer, &start, &end);  gtk_text_buffer_apply_tag_by_name (buffer, "word_wrap", &start, &end);  g_object_unref (pixbuf);}static gbooleanfind_anchor (GtkTextIter *iter){  while (gtk_text_iter_forward_char (iter))    {      if (gtk_text_iter_get_child_anchor (iter))        return TRUE;    }  return FALSE;}static voidattach_widgets (GtkTextView *text_view){  GtkTextIter iter;  GtkTextBuffer *buffer;  int i;    buffer = gtk_text_view_get_buffer (text_view);  gtk_text_buffer_get_start_iter (buffer, &iter);  i = 0;  while (find_anchor (&iter))    {      GtkTextChildAnchor *anchor;      GtkWidget *widget;            anchor = gtk_text_iter_get_child_anchor (&iter);      if (i == 0)        {          widget = gtk_button_new_with_label ("Click Me");          g_signal_connect (widget, "clicked",                            G_CALLBACK (easter_egg_callback),                            NULL);        }      else if (i == 1)        {          widget = gtk_combo_box_new_text ();          gtk_combo_box_append_text (GTK_COMBO_BOX (widget), "Option 1");          gtk_combo_box_append_text (GTK_COMBO_BOX (widget), "Option 2");          gtk_combo_box_append_text (GTK_COMBO_BOX (widget), "Option 3");        }      else if (i == 2)        {          widget = gtk_hscale_new (NULL);          gtk_range_set_range (GTK_RANGE (widget), 0, 100);          gtk_widget_set_size_request (widget, 70, -1);        }      else if (i == 3)        {	  gchar *filename = demo_find_file ("floppybuddy.gif", NULL);	  widget = gtk_image_new_from_file (filename);	  g_free (filename);        }      else if (i == 4)        {          widget = gtk_entry_new ();        }      else        {          widget = NULL; /* avoids a compiler warning */          g_assert_not_reached ();        }      gtk_text_view_add_child_at_anchor (text_view,                                         widget,                                         anchor);      gtk_widget_show_all (widget);      ++i;    }}GtkWidget *do_textview (GtkWidget *do_widget){  static GtkWidget *window = NULL;  if (!window)    {      GtkWidget *vpaned;      GtkWidget *view1;      GtkWidget *view2;      GtkWidget *sw;      GtkTextBuffer *buffer;            window = gtk_window_new (GTK_WINDOW_TOPLEVEL);      gtk_window_set_screen (GTK_WINDOW (window),			     gtk_widget_get_screen (do_widget));      gtk_window_set_default_size (GTK_WINDOW (window),				   450, 450);            g_signal_connect (window, "destroy",			G_CALLBACK (gtk_widget_destroyed), &window);      gtk_window_set_title (GTK_WINDOW (window), "TextView");      gtk_container_set_border_width (GTK_CONTAINER (window), 0);      vpaned = gtk_vpaned_new ();      gtk_container_set_border_width (GTK_CONTAINER(vpaned), 5);      gtk_container_add (GTK_CONTAINER (window), vpaned);      /* For convenience, we just use the autocreated buffer from       * the first text view; you could also create the buffer       * by itself with gtk_text_buffer_new(), then later create       * a view widget.       */      view1 = gtk_text_view_new ();      buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view1));      view2 = gtk_text_view_new_with_buffer (buffer);            sw = gtk_scrolled_window_new (NULL, NULL);      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),				      GTK_POLICY_AUTOMATIC,				      GTK_POLICY_AUTOMATIC);      gtk_paned_add1 (GTK_PANED (vpaned), sw);      gtk_container_add (GTK_CONTAINER (sw), view1);      sw = gtk_scrolled_window_new (NULL, NULL);      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),				      GTK_POLICY_AUTOMATIC,				      GTK_POLICY_AUTOMATIC);      gtk_paned_add2 (GTK_PANED (vpaned), sw);      gtk_container_add (GTK_CONTAINER (sw), view2);      create_tags (buffer);      insert_text (buffer);      attach_widgets (GTK_TEXT_VIEW (view1));      attach_widgets (GTK_TEXT_VIEW (view2));            gtk_widget_show_all (vpaned);    }  if (!GTK_WIDGET_VISIBLE (window))    {      gtk_widget_show (window);    }  else    {      gtk_widget_destroy (window);      window = NULL;    }  return window;}static voidrecursive_attach_view (int                 depth,                       GtkTextView        *view,                       GtkTextChildAnchor *anchor){  GtkWidget *child_view;  GtkWidget *event_box;  GdkColor color;  GtkWidget *align;    if (depth > 4)    return;    child_view = gtk_text_view_new_with_buffer (gtk_text_view_get_buffer (view));  /* Event box is to add a black border around each child view */  event_box = gtk_event_box_new ();  gdk_color_parse ("black", &color);  gtk_widget_modify_bg (event_box, GTK_STATE_NORMAL, &color);  align = gtk_alignment_new (0.5, 0.5, 1.0, 1.0);  gtk_container_set_border_width (GTK_CONTAINER (align), 1);    gtk_container_add (GTK_CONTAINER (event_box), align);  gtk_container_add (GTK_CONTAINER (align), child_view);    gtk_text_view_add_child_at_anchor (view, event_box, anchor);  recursive_attach_view (depth + 1, GTK_TEXT_VIEW (child_view), anchor);}static voideaster_egg_callback (GtkWidget *button,                     gpointer   data){  static GtkWidget *window = NULL;  GtkTextBuffer *buffer;  GtkWidget     *view;  GtkTextIter    iter;  GtkTextChildAnchor *anchor;  GtkWidget *sw;  if (window)    {      gtk_window_present (GTK_WINDOW (window));      return;    }    buffer = gtk_text_buffer_new (NULL);  gtk_text_buffer_get_start_iter (buffer, &iter);  gtk_text_buffer_insert (buffer, &iter,                          "This buffer is shared by a set of nested text views.\n Nested view:\n", -1);  anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);  gtk_text_buffer_insert (buffer, &iter,                          "\nDon't do this in real applications, please.\n", -1);  view = gtk_text_view_new_with_buffer (buffer);    recursive_attach_view (0, GTK_TEXT_VIEW (view), anchor);    g_object_unref (buffer);  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);  sw = gtk_scrolled_window_new (NULL, NULL);  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),                                  GTK_POLICY_AUTOMATIC,                                  GTK_POLICY_AUTOMATIC);  gtk_container_add (GTK_CONTAINER (window), sw);  gtk_container_add (GTK_CONTAINER (sw), view);  g_object_add_weak_pointer (G_OBJECT (window),                             (gpointer *) &window);  gtk_window_set_default_size (GTK_WINDOW (window), 300, 400);    gtk_widget_show_all (window);}