Pileus Git - ~andy/gtk/blob - tests/testtreefocus.c

   1 #include <gtk/gtk.h>
   2
   3 typedef struct _TreeStruct TreeStruct;
   4 struct _TreeStruct
   5 {
   6   const gchar *label;
   7   gboolean alex;
   8   gboolean havoc;
   9   gboolean tim;
  10   gboolean owen;
  11   gboolean dave;
  12   gboolean world_holiday; /* shared by the european hackers */
  13   TreeStruct *children;
  14 };
  15
  16
  17 static TreeStruct january[] =
  18 {
  19   {"New Years Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
  20   {"Presidential Inauguration", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  21   {"Martin Luther King Jr. day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  22   { NULL }
  23 };
  24
  25 static TreeStruct february[] =
  26 {
  27   { "Presidents' Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  28   { "Groundhog Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  29   { "Valentine's Day", FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, NULL },
  30   { NULL }
  31 };
  32
  33 static TreeStruct march[] =
  34 {
  35   { "National Tree Planting Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  36   { "St Patrick's Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  37   { NULL }
  38 };
  39
  40 static TreeStruct april[] =
  41 {
  42   { "April Fools' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  43   { "Army Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  44   { "Earth Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  45   { "Administrative Professionals' Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  46   { NULL }
  47 };
  48
  49 static TreeStruct may[] =
  50 {
  51   { "Nurses' Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  52   { "National Day of Prayer", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  53   { "Mothers' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  54   { "Armed Forces Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  55   { "Memorial Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
  56   { NULL }
  57 };
  58
  59 static TreeStruct june[] =
  60 {
  61   { "June Fathers' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  62   { "Juneteenth (Liberation of Slaves)", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  63   { "Flag Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  64   { NULL }
  65 };
  66
  67 static TreeStruct july[] =
  68 {
  69   { "Parents' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  70   { "Independence Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  71   { NULL }
  72 };
  73
  74 static TreeStruct august[] =
  75 {
  76   { "Air Force Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  77   { "Coast Guard Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  78   { "Friendship Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  79   { NULL }
  80 };
  81
  82 static TreeStruct september[] =
  83 {
  84   { "Grandparents' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  85   { "Citizenship Day or Constitution Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  86   { "Labor Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
  87   { NULL }
  88 };
  89
  90 static TreeStruct october[] =
  91 {
  92   { "National Children's Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  93   { "Bosses' Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  94   { "Sweetest Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  95   { "Mother-in-Law's Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  96   { "Navy Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  97   { "Columbus Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  98   { "Halloween", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  99   { NULL }
 100 };
 101
 102 static TreeStruct november[] =
 103 {
 104   { "Marine Corps Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 105   { "Veterans' Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
 106   { "Thanksgiving", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
 107   { NULL }
 108 };
 109
 110 static TreeStruct december[] =
 111 {
 112   { "Pearl Harbor Remembrance Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 113   { "Christmas", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
 114   { "Kwanzaa", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 115   { NULL }
 116 };
 117
 118
 119 static TreeStruct toplevel[] =
 120 {
 121   {"January", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, january},
 122   {"February", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, february},
 123   {"March", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, march},
 124   {"April", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, april},
 125   {"May", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, may},
 126   {"June", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, june},
 127   {"July", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, july},
 128   {"August", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, august},
 129   {"September", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, september},
 130   {"October", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, october},
 131   {"November", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, november},
 132   {"December", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, december},
 133   {NULL}
 134 };
 135
 136
 137 enum
 138 {
 139   HOLIDAY_COLUMN = 0,
 140   ALEX_COLUMN,
 141   HAVOC_COLUMN,
 142   TIM_COLUMN,
 143   OWEN_COLUMN,
 144   DAVE_COLUMN,
 145   VISIBLE_COLUMN,
 146   WORLD_COLUMN,
 147   NUM_COLUMNS
 148 };
 149
 150 static GtkTreeModel *
 151 make_model (void)
 152 {
 153   GtkTreeStore *model;
 154   TreeStruct *month = toplevel;
 155   GtkTreeIter iter;
 156
 157   model = gtk_tree_store_new_with_types (NUM_COLUMNS,
 158                                          G_TYPE_STRING,
 159                                          G_TYPE_BOOLEAN,
 160                                          G_TYPE_BOOLEAN,
 161                                          G_TYPE_BOOLEAN,
 162                                          G_TYPE_BOOLEAN,
 163                                          G_TYPE_BOOLEAN,
 164                                          G_TYPE_BOOLEAN,
 165                                          G_TYPE_BOOLEAN);
 166
 167   while (month->label)
 168     {
 169       TreeStruct *holiday = month->children;
 170
 171       gtk_tree_store_append (model, &iter, NULL);
 172       gtk_tree_store_set (model, &iter,
 173                           HOLIDAY_COLUMN, month->label,
 174                           ALEX_COLUMN, FALSE,
 175                           HAVOC_COLUMN, FALSE,
 176                           TIM_COLUMN, FALSE,
 177                           OWEN_COLUMN, FALSE,
 178                           DAVE_COLUMN, FALSE,
 179                           VISIBLE_COLUMN, FALSE,
 180                           WORLD_COLUMN, FALSE,
 181                           -1);
 182       while (holiday->label)
 183         {
 184           GtkTreeIter child_iter;
 185
 186           gtk_tree_store_append (model, &child_iter, &iter);
 187           gtk_tree_store_set (model, &child_iter,
 188                               HOLIDAY_COLUMN, holiday->label,
 189                               ALEX_COLUMN, holiday->alex,
 190                               HAVOC_COLUMN, holiday->havoc,
 191                               TIM_COLUMN, holiday->tim,
 192                               OWEN_COLUMN, holiday->owen,
 193                               DAVE_COLUMN, holiday->dave,
 194                               VISIBLE_COLUMN, TRUE,
 195                               WORLD_COLUMN, holiday->world_holiday,
 196                               -1);
 197
 198           holiday ++;
 199         }
 200       month ++;
 201     }
 202
 203   return GTK_TREE_MODEL (model);
 204 }
 205
 206 static void
 207 alex_toggled (GtkCellRendererToggle *cell,
 208               gchar                 *path_str,
 209               gpointer               data)
 210 {
 211   GtkTreeModel *model = (GtkTreeModel *) data;
 212   GtkTreeIter iter;
 213   GtkTreePath *path = gtk_tree_path_new_from_string (path_str);
 214   gboolean alex;
 215
 216   gtk_tree_model_get_iter (model, &iter, path);
 217   gtk_tree_model_get (model, &iter, ALEX_COLUMN, &alex, -1);
 218
 219   alex = !alex;
 220   gtk_tree_store_set (GTK_TREE_STORE (model), &iter, ALEX_COLUMN, alex, -1);
 221
 222   gtk_tree_path_free (path);
 223 }
 224
 225 static void
 226 havoc_toggled (GtkCellRendererToggle *cell,
 227                gchar                 *path_str,
 228                gpointer               data)
 229 {
 230   GtkTreeModel *model = (GtkTreeModel *) data;
 231   GtkTreeIter iter;
 232   GtkTreePath *path = gtk_tree_path_new_from_string (path_str);
 233   gboolean havoc;
 234
 235   gtk_tree_model_get_iter (model, &iter, path);
 236   gtk_tree_model_get (model, &iter, HAVOC_COLUMN, &havoc, -1);
 237
 238   havoc = !havoc;
 239   gtk_tree_store_set (GTK_TREE_STORE (model), &iter, HAVOC_COLUMN, havoc, -1);
 240
 241   gtk_tree_path_free (path);
 242 }
 243
 244 static void
 245 owen_toggled (GtkCellRendererToggle *cell,
 246               gchar                 *path_str,
 247               gpointer               data)
 248 {
 249   GtkTreeModel *model = (GtkTreeModel *) data;
 250   GtkTreeIter iter;
 251   GtkTreePath *path = gtk_tree_path_new_from_string (path_str);
 252   gboolean owen;
 253
 254   gtk_tree_model_get_iter (model, &iter, path);
 255   gtk_tree_model_get (model, &iter, OWEN_COLUMN, &owen, -1);
 256
 257   owen = !owen;
 258   gtk_tree_store_set (GTK_TREE_STORE (model), &iter, OWEN_COLUMN, owen, -1);
 259
 260   gtk_tree_path_free (path);
 261 }
 262
 263 static void
 264 tim_toggled (GtkCellRendererToggle *cell,
 265              gchar                 *path_str,
 266              gpointer               data)
 267 {
 268   GtkTreeModel *model = (GtkTreeModel *) data;
 269   GtkTreeIter iter;
 270   GtkTreePath *path = gtk_tree_path_new_from_string (path_str);
 271   gboolean tim;
 272
 273   gtk_tree_model_get_iter (model, &iter, path);
 274   gtk_tree_model_get (model, &iter, TIM_COLUMN, &tim, -1);
 275
 276   tim = !tim;
 277   gtk_tree_store_set (GTK_TREE_STORE (model), &iter, TIM_COLUMN, tim, -1);
 278
 279   gtk_tree_path_free (path);
 280 }
 281
 282 static void
 283 dave_toggled (GtkCellRendererToggle *cell,
 284               gchar                 *path_str,
 285               gpointer               data)
 286 {
 287   GtkTreeModel *model = (GtkTreeModel *) data;
 288   GtkTreeIter iter;
 289   GtkTreePath *path = gtk_tree_path_new_from_string (path_str);
 290   gboolean dave;
 291
 292   gtk_tree_model_get_iter (model, &iter, path);
 293   gtk_tree_model_get (model, &iter, DAVE_COLUMN, &dave, -1);
 294
 295   dave = !dave;
 296   gtk_tree_store_set (GTK_TREE_STORE (model), &iter, DAVE_COLUMN, dave, -1);
 297
 298   gtk_tree_path_free (path);
 299 }
 300
 301 int
 302 main (int argc, char *argv[])
 303 {
 304   GtkWidget *window;
 305   GtkWidget *vbox;
 306   GtkWidget *scrolled_window;
 307   GtkWidget *tree_view;
 308   GtkTreeModel *model;
 309   GtkCellRenderer *renderer;
 310   gint col_offset;
 311   GtkTreeViewColumn *column;
 312
 313   gtk_init (&argc, &argv);
 314
 315   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 316   gtk_window_set_title (GTK_WINDOW (window), "Card planning sheet");
 317   gtk_signal_connect (GTK_OBJECT (window), "destroy", gtk_main_quit, NULL);
 318   vbox = gtk_vbox_new (FALSE, 8);
 319   gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
 320   gtk_box_pack_start (GTK_BOX (vbox), gtk_label_new ("Jonathan's Holiday Card Planning Sheet"), FALSE, FALSE, 0);
 321   gtk_container_add (GTK_CONTAINER (window), vbox);
 322
 323   scrolled_window = gtk_scrolled_window_new (NULL, NULL);
 324   gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window), GTK_SHADOW_ETCHED_IN);
 325   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 326   gtk_box_pack_start (GTK_BOX (vbox), scrolled_window, TRUE, TRUE, 0);
 327
 328   model = make_model ();
 329   tree_view = gtk_tree_view_new_with_model (model);
 330   gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view), TRUE);
 331
 332   renderer = gtk_cell_renderer_text_new ();
 333   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 334                                                -1, "Holiday",
 335                                                renderer,
 336                                                "text", HOLIDAY_COLUMN, NULL);
 337   g_object_unref (renderer);
 338
 339   /* Alex Column */
 340   renderer = gtk_cell_renderer_toggle_new ();
 341   g_signal_connect_data (G_OBJECT (renderer), "toggled", alex_toggled, model, NULL, FALSE, FALSE);
 342
 343   g_object_set (G_OBJECT (renderer), "xalign", 0.0, NULL);
 344   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 345                                                             -1, "Alex",
 346                                                             renderer,
 347                                                             "active", ALEX_COLUMN,
 348                                                             "visible", VISIBLE_COLUMN,
 349                                                             "can_activate", WORLD_COLUMN,
 350                                                             NULL);
 351   column = gtk_tree_view_get_column (GTK_TREE_VIEW (tree_view), col_offset - 1);
 352   gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column), GTK_TREE_VIEW_COLUMN_FIXED);
 353   gtk_tree_view_column_set_width (GTK_TREE_VIEW_COLUMN (column), 50);
 354   g_object_unref (renderer);
 355
 356   /* Havoc Column */
 357   renderer = gtk_cell_renderer_toggle_new ();
 358   g_signal_connect_data (G_OBJECT (renderer), "toggled", havoc_toggled, model, NULL, FALSE, FALSE);
 359
 360   g_object_set (G_OBJECT (renderer), "xalign", 0.0, NULL);
 361   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 362                                                             -1, "Havoc",
 363                                                             renderer,
 364                                                             "active", HAVOC_COLUMN,
 365                                                             "visible", VISIBLE_COLUMN,
 366                                                             NULL);
 367   column = gtk_tree_view_get_column (GTK_TREE_VIEW (tree_view), col_offset - 1);
 368   gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column), GTK_TREE_VIEW_COLUMN_FIXED);
 369   gtk_tree_view_column_set_width (GTK_TREE_VIEW_COLUMN (column), 50);
 370   g_object_unref (renderer);
 371
 372   /* Tim Column */
 373   renderer = gtk_cell_renderer_toggle_new ();
 374   g_signal_connect_data (G_OBJECT (renderer), "toggled", tim_toggled, model, NULL, FALSE, FALSE);
 375
 376   g_object_set (G_OBJECT (renderer), "xalign", 0.0, NULL);
 377   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 378                                                -1, "Tim",
 379                                                renderer,
 380                                                "active", TIM_COLUMN,
 381                                                "visible", VISIBLE_COLUMN,
 382                                                "can_activate", WORLD_COLUMN,
 383                                                NULL);
 384   column = gtk_tree_view_get_column (GTK_TREE_VIEW (tree_view), col_offset - 1);
 385   gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column), GTK_TREE_VIEW_COLUMN_FIXED);
 386   gtk_tree_view_column_set_width (GTK_TREE_VIEW_COLUMN (column), 50);
 387   g_object_unref (renderer);
 388
 389   /* Owen Column */
 390   renderer = gtk_cell_renderer_toggle_new ();
 391   g_signal_connect_data (G_OBJECT (renderer), "toggled", owen_toggled, model, NULL, FALSE, FALSE);
 392   g_object_set (G_OBJECT (renderer), "xalign", 0.0, NULL);
 393   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 394                                                -1, "Owen",
 395                                                renderer,
 396                                                "active", OWEN_COLUMN,
 397                                                "visible", VISIBLE_COLUMN,
 398                                                NULL);
 399   column = gtk_tree_view_get_column (GTK_TREE_VIEW (tree_view), col_offset - 1);
 400   gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column), GTK_TREE_VIEW_COLUMN_FIXED);
 401   gtk_tree_view_column_set_width (GTK_TREE_VIEW_COLUMN (column), 50);
 402   g_object_unref (renderer);
 403
 404   /* Owen Column */
 405   renderer = gtk_cell_renderer_toggle_new ();
 406   g_signal_connect_data (G_OBJECT (renderer), "toggled", dave_toggled, model, NULL, FALSE, FALSE);
 407   g_object_set (G_OBJECT (renderer), "xalign", 0.0, NULL);
 408   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 409                                                -1, "Dave",
 410                                                renderer,
 411                                                "active", DAVE_COLUMN,
 412                                                "visible", VISIBLE_COLUMN,
 413                                                NULL);
 414   column = gtk_tree_view_get_column (GTK_TREE_VIEW (tree_view), col_offset - 1);
 415   gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column), GTK_TREE_VIEW_COLUMN_FIXED);
 416   gtk_tree_view_column_set_width (GTK_TREE_VIEW_COLUMN (column), 50);
 417   g_object_unref (renderer);
 418
 419   gtk_container_add (GTK_CONTAINER (scrolled_window), tree_view);
 420
 421   gtk_signal_connect (GTK_OBJECT (tree_view), "realize",
 422                       GTK_SIGNAL_FUNC (gtk_tree_view_expand_all),
 423                       NULL);
 424   gtk_window_set_default_size (GTK_WINDOW (window),
 425                                650, 400);
 426   gtk_widget_show_all (window);
 427
 428   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 429   gtk_window_set_title (GTK_WINDOW (window), "Model");
 430   gtk_signal_connect (GTK_OBJECT (window), "destroy", gtk_main_quit, NULL);
 431   vbox = gtk_vbox_new (FALSE, 8);
 432   gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
 433   gtk_box_pack_start (GTK_BOX (vbox), gtk_label_new ("The model revealed"), FALSE, FALSE, 0);
 434   gtk_container_add (GTK_CONTAINER (window), vbox);
 435
 436   scrolled_window = gtk_scrolled_window_new (NULL, NULL);
 437   gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window), GTK_SHADOW_ETCHED_IN);
 438   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 439   gtk_box_pack_start (GTK_BOX (vbox), scrolled_window, TRUE, TRUE, 0);
 440
 441
 442   tree_view = gtk_tree_view_new_with_model (model);
 443   g_object_unref (G_OBJECT (model));
 444   gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view), TRUE);
 445
 446   renderer = gtk_cell_renderer_text_new ();
 447   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 448                                                -1, "Holiday Column",
 449                                                renderer,
 450                                                "text", 0, NULL);
 451   g_object_unref (renderer);
 452
 453   renderer = gtk_cell_renderer_text_new ();
 454   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 455                                                -1, "Alex Column",
 456                                                renderer,
 457                                                "text", 1, NULL);
 458   g_object_unref (renderer);
 459
 460   renderer = gtk_cell_renderer_text_new ();
 461   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 462                                                -1, "Havoc Column",
 463                                                renderer,
 464                                                "text", 2, NULL);
 465   g_object_unref (renderer);
 466
 467   renderer = gtk_cell_renderer_text_new ();
 468   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 469                                                -1, "Tim Column",
 470                                                renderer,
 471                                                "text", 3, NULL);
 472   g_object_unref (renderer);
 473
 474   renderer = gtk_cell_renderer_text_new ();
 475   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 476                                                -1, "Owen Column",
 477                                                renderer,
 478                                                "text", 4, NULL);
 479   g_object_unref (renderer);
 480
 481   renderer = gtk_cell_renderer_text_new ();
 482   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 483                                                -1, "Dave Column",
 484                                                renderer,
 485                                                "text", 5, NULL);
 486   g_object_unref (renderer);
 487
 488   renderer = gtk_cell_renderer_text_new ();
 489   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 490                                                -1, "Visible Column",
 491                                                renderer,
 492                                                "text", 6, NULL);
 493   g_object_unref (renderer);
 494
 495   renderer = gtk_cell_renderer_text_new ();
 496   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 497                                                -1, "World Holiday",
 498                                                renderer,
 499                                                "text", 7, NULL);
 500   g_object_unref (renderer);
 501
 502   gtk_signal_connect (GTK_OBJECT (tree_view), "realize",
 503                       GTK_SIGNAL_FUNC (gtk_tree_view_expand_all),
 504                       NULL);
 505
 506   gtk_container_add (GTK_CONTAINER (scrolled_window), tree_view);
 507
 508
 509   gtk_window_set_default_size (GTK_WINDOW (window),
 510                                650, 400);
 511
 512   gtk_widget_show_all (window);
 513   gtk_main ();
 514
 515   return 0;
 516 }
 517