Pileus Git - ~andy/gtk/blob - demos/gtk-demo/tree_store.c

   1 /* Tree View/Tree Store
   2  *
   3  * The GtkTreeStore is used to store data in tree form, to be
   4  * used later on by a GtkTreeView to display it. This demo builds
   5  * a simple GtkTreeStore and displays it. If you're new to the
   6  * GtkTreeView widgets and associates, look into the GtkListStore
   7  * example first.
   8  *
   9  */
  10
  11 #include <gtk/gtk.h>
  12
  13 static GtkWidget *window = NULL;
  14
  15 /* TreeItem structure */
  16 typedef struct _TreeItem TreeItem;
  17 struct _TreeItem
  18 {
  19   const gchar    *label;
  20   gboolean        alex;
  21   gboolean        havoc;
  22   gboolean        tim;
  23   gboolean        owen;
  24   gboolean        dave;
  25   gboolean        world_holiday; /* shared by the European hackers */
  26   TreeItem       *children;
  27 };
  28
  29 /* columns */
  30 enum
  31 {
  32   HOLIDAY_NAME_COLUMN = 0,
  33   ALEX_COLUMN,
  34   HAVOC_COLUMN,
  35   TIM_COLUMN,
  36   OWEN_COLUMN,
  37   DAVE_COLUMN,
  38
  39   VISIBLE_COLUMN,
  40   WORLD_COLUMN,
  41   NUM_COLUMNS
  42 };
  43
  44 /* tree data */
  45 static TreeItem january[] =
  46 {
  47   {"New Years Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
  48   {"Presidential Inauguration", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  49   {"Martin Luther King Jr. day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  50   { NULL }
  51 };
  52
  53 static TreeItem february[] =
  54 {
  55   { "Presidents' Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  56   { "Groundhog Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  57   { "Valentine's Day", FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, NULL },
  58   { NULL }
  59 };
  60
  61 static TreeItem march[] =
  62 {
  63   { "National Tree Planting Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  64   { "St Patrick's Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  65   { NULL }
  66 };
  67 static TreeItem april[] =
  68 {
  69   { "April Fools' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  70   { "Army Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  71   { "Earth Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  72   { "Administrative Professionals' Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  73   { NULL }
  74 };
  75
  76 static TreeItem may[] =
  77 {
  78   { "Nurses' Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  79   { "National Day of Prayer", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  80   { "Mothers' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  81   { "Armed Forces Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  82   { "Memorial Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
  83   { NULL }
  84 };
  85
  86 static TreeItem june[] =
  87 {
  88   { "June Fathers' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  89   { "Juneteenth (Liberation of Slaves)", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
  90   { "Flag Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  91   { NULL }
  92 };
  93
  94 static TreeItem july[] =
  95 {
  96   { "Parents' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
  97   { "Independence Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
  98   { NULL }
  99 };
 100
 101 static TreeItem august[] =
 102 {
 103   { "Air Force Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 104   { "Coast Guard Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 105   { "Friendship Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 106   { NULL }
 107 };
 108
 109 static TreeItem september[] =
 110 {
 111   { "Grandparents' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
 112   { "Citizenship Day or Constitution Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 113   { "Labor Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
 114   { NULL }
 115 };
 116
 117 static TreeItem october[] =
 118 {
 119   { "National Children's Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 120   { "Bosses' Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 121   { "Sweetest Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 122   { "Mother-in-Law's Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 123   { "Navy Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 124   { "Columbus Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
 125   { "Halloween", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
 126   { NULL }
 127 };
 128
 129 static TreeItem november[] =
 130 {
 131   { "Marine Corps Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 132   { "Veterans' Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
 133   { "Thanksgiving", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
 134   { NULL }
 135 };
 136
 137 static TreeItem december[] =
 138 {
 139   { "Pearl Harbor Remembrance Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 140   { "Christmas", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
 141   { "Kwanzaa", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
 142   { NULL }
 143 };
 144
 145
 146 static TreeItem toplevel[] =
 147 {
 148   {"January", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, january},
 149   {"February", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, february},
 150   {"March", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, march},
 151   {"April", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, april},
 152   {"May", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, may},
 153   {"June", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, june},
 154   {"July", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, july},
 155   {"August", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, august},
 156   {"September", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, september},
 157   {"October", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, october},
 158   {"November", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, november},
 159   {"December", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, december},
 160   {NULL}
 161 };
 162
 163
 164 static GtkTreeModel *
 165 create_model (void)
 166 {
 167   GtkTreeStore *model;
 168   GtkTreeIter iter;
 169   TreeItem *month = toplevel;
 170
 171   /* create tree store */
 172   model = gtk_tree_store_new (NUM_COLUMNS,
 173                               G_TYPE_STRING,
 174                               G_TYPE_BOOLEAN,
 175                               G_TYPE_BOOLEAN,
 176                               G_TYPE_BOOLEAN,
 177                               G_TYPE_BOOLEAN,
 178                               G_TYPE_BOOLEAN,
 179                               G_TYPE_BOOLEAN,
 180                               G_TYPE_BOOLEAN);
 181
 182   /* add data to the tree store */
 183   while (month->label)
 184     {
 185       TreeItem *holiday = month->children;
 186
 187       gtk_tree_store_append (model, &iter, NULL);
 188       gtk_tree_store_set (model, &iter,
 189                           HOLIDAY_NAME_COLUMN, month->label,
 190                           ALEX_COLUMN, FALSE,
 191                           HAVOC_COLUMN, FALSE,
 192                           TIM_COLUMN, FALSE,
 193                           OWEN_COLUMN, FALSE,
 194                           DAVE_COLUMN, FALSE,
 195                           VISIBLE_COLUMN, FALSE,
 196                           WORLD_COLUMN, FALSE,
 197                           -1);
 198
 199       /* add children */
 200       while (holiday->label)
 201         {
 202           GtkTreeIter child_iter;
 203
 204           gtk_tree_store_append (model, &child_iter, &iter);
 205           gtk_tree_store_set (model, &child_iter,
 206                               HOLIDAY_NAME_COLUMN, holiday->label,
 207                               ALEX_COLUMN, holiday->alex,
 208                               HAVOC_COLUMN, holiday->havoc,
 209                               TIM_COLUMN, holiday->tim,
 210                               OWEN_COLUMN, holiday->owen,
 211                               DAVE_COLUMN, holiday->dave,
 212                               VISIBLE_COLUMN, TRUE,
 213                               WORLD_COLUMN, holiday->world_holiday,
 214                               -1);
 215
 216           holiday++;
 217         }
 218
 219       month++;
 220     }
 221
 222   return GTK_TREE_MODEL (model);
 223 }
 224
 225 static void
 226 item_toggled (GtkCellRendererToggle *cell,
 227               gchar                 *path_str,
 228               gpointer               data)
 229 {
 230   GtkTreeModel *model = (GtkTreeModel *)data;
 231   GtkTreePath *path = gtk_tree_path_new_from_string (path_str);
 232   GtkTreeIter iter;
 233   gboolean toggle_item;
 234
 235   gint *column;
 236
 237   column = g_object_get_data (G_OBJECT (cell), "column");
 238
 239   /* get toggled iter */
 240   gtk_tree_model_get_iter (model, &iter, path);
 241   gtk_tree_model_get (model, &iter, column, &toggle_item, -1);
 242
 243   /* do something with the value */
 244   toggle_item ^= 1;
 245
 246   /* set new value */
 247   gtk_tree_store_set (GTK_TREE_STORE (model), &iter, column,
 248                       toggle_item, -1);
 249
 250   /* clean up */
 251   gtk_tree_path_free (path);
 252 }
 253
 254 static void
 255 add_columns (GtkTreeView *treeview)
 256 {
 257   gint col_offset;
 258   GtkCellRenderer *renderer;
 259   GtkTreeViewColumn *column;
 260   GtkTreeModel *model = gtk_tree_view_get_model (treeview);
 261
 262   /* column for holiday names */
 263   renderer = gtk_cell_renderer_text_new ();
 264   g_object_set (renderer, "xalign", 0.0, NULL);
 265
 266   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 267                                                             -1, "Holiday",
 268                                                             renderer, "text",
 269                                                             HOLIDAY_NAME_COLUMN,
 270                                                             NULL);
 271   column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
 272   gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
 273
 274   /* alex column */
 275   renderer = gtk_cell_renderer_toggle_new ();
 276   g_object_set (renderer, "xalign", 0.0, NULL);
 277   g_object_set_data (G_OBJECT (renderer), "column", (gint *)ALEX_COLUMN);
 278
 279   g_signal_connect (renderer, "toggled", G_CALLBACK (item_toggled), model);
 280
 281   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 282                                                             -1, "Alex",
 283                                                             renderer,
 284                                                             "active",
 285                                                             ALEX_COLUMN,
 286                                                             "visible",
 287                                                             VISIBLE_COLUMN,
 288                                                             "activatable",
 289                                                             WORLD_COLUMN, NULL);
 290
 291   column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
 292   gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
 293                                    GTK_TREE_VIEW_COLUMN_FIXED);
 294   gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);
 295   gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
 296
 297   /* havoc column */
 298   renderer = gtk_cell_renderer_toggle_new ();
 299   g_object_set (renderer, "xalign", 0.0, NULL);
 300   g_object_set_data (G_OBJECT (renderer), "column", (gint *)HAVOC_COLUMN);
 301
 302   g_signal_connect (renderer, "toggled", G_CALLBACK (item_toggled), model);
 303
 304   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 305                                                             -1, "Havoc",
 306                                                             renderer,
 307                                                             "active",
 308                                                             HAVOC_COLUMN,
 309                                                             "visible",
 310                                                             VISIBLE_COLUMN,
 311                                                             NULL);
 312
 313   column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
 314   gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
 315                                    GTK_TREE_VIEW_COLUMN_FIXED);
 316   gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);
 317   gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
 318
 319   /* tim column */
 320   renderer = gtk_cell_renderer_toggle_new ();
 321   g_object_set (renderer, "xalign", 0.0, NULL);
 322   g_object_set_data (G_OBJECT (renderer), "column", (gint *)TIM_COLUMN);
 323
 324   g_signal_connect (renderer, "toggled", G_CALLBACK (item_toggled), model);
 325
 326   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 327                                                             -1, "Tim",
 328                                                             renderer,
 329                                                             "active",
 330                                                             TIM_COLUMN,
 331                                                             "visible",
 332                                                             VISIBLE_COLUMN,
 333                                                             "activatable",
 334                                                             WORLD_COLUMN, NULL);
 335
 336   column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
 337   gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
 338                                    GTK_TREE_VIEW_COLUMN_FIXED);
 339   gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);
 340   gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
 341
 342   /* owen column */
 343   renderer = gtk_cell_renderer_toggle_new ();
 344   g_object_set (renderer, "xalign", 0.0, NULL);
 345   g_object_set_data (G_OBJECT (renderer), "column", (gint *)OWEN_COLUMN);
 346
 347   g_signal_connect (renderer, "toggled", G_CALLBACK (item_toggled), model);
 348
 349   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 350                                                             -1, "Owen",
 351                                                             renderer,
 352                                                             "active",
 353                                                             OWEN_COLUMN,
 354                                                             "visible",
 355                                                             VISIBLE_COLUMN,
 356                                                             NULL);
 357
 358   column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
 359   gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
 360                                    GTK_TREE_VIEW_COLUMN_FIXED);
 361   gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);
 362   gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
 363
 364   /* dave column */
 365   renderer = gtk_cell_renderer_toggle_new ();
 366   g_object_set (renderer, "xalign", 0.0, NULL);
 367   g_object_set_data (G_OBJECT (renderer), "column", (gint *)DAVE_COLUMN);
 368
 369   g_signal_connect (renderer, "toggled", G_CALLBACK (item_toggled), model);
 370
 371   col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 372                                                             -1, "Dave",
 373                                                             renderer,
 374                                                             "active",
 375                                                             DAVE_COLUMN,
 376                                                             "visible",
 377                                                             VISIBLE_COLUMN,
 378                                                             NULL);
 379
 380   column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
 381   gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
 382                                    GTK_TREE_VIEW_COLUMN_FIXED);
 383   gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);
 384   gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
 385 }
 386
 387 GtkWidget *
 388 do_tree_store (GtkWidget *do_widget)
 389 {
 390   if (!window)
 391     {
 392       GtkWidget *vbox;
 393       GtkWidget *sw;
 394       GtkWidget *treeview;
 395       GtkTreeModel *model;
 396
 397       /* create window, etc */
 398       window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 399       gtk_window_set_screen (GTK_WINDOW (window),
 400                              gtk_widget_get_screen (do_widget));
 401       gtk_window_set_title (GTK_WINDOW (window), "Card planning sheet");
 402       g_signal_connect (window, "destroy",
 403                         G_CALLBACK (gtk_widget_destroyed), &window);
 404
 405       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, FALSE, 8);
 406       gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
 407       gtk_container_add (GTK_CONTAINER (window), vbox);
 408
 409       gtk_box_pack_start (GTK_BOX (vbox),
 410                           gtk_label_new ("Jonathan's Holiday Card Planning Sheet"),
 411                           FALSE, FALSE, 0);
 412
 413       sw = gtk_scrolled_window_new (NULL, NULL);
 414       gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
 415                                            GTK_SHADOW_ETCHED_IN);
 416       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
 417                                       GTK_POLICY_AUTOMATIC,
 418                                       GTK_POLICY_AUTOMATIC);
 419       gtk_box_pack_start (GTK_BOX (vbox), sw, TRUE, TRUE, 0);
 420
 421       /* create model */
 422       model = create_model ();
 423
 424       /* create tree view */
 425       treeview = gtk_tree_view_new_with_model (model);
 426       g_object_unref (model);
 427       gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (treeview), TRUE);
 428       gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview)),
 429                                    GTK_SELECTION_MULTIPLE);
 430
 431       add_columns (GTK_TREE_VIEW (treeview));
 432
 433       gtk_container_add (GTK_CONTAINER (sw), treeview);
 434
 435       /* expand all rows after the treeview widget has been realized */
 436       g_signal_connect (treeview, "realize",
 437                         G_CALLBACK (gtk_tree_view_expand_all), NULL);
 438       gtk_window_set_default_size (GTK_WINDOW (window), 650, 400);
 439     }
 440
 441   if (!gtk_widget_get_visible (window))
 442     gtk_widget_show_all (window);
 443   else
 444     {
 445       gtk_widget_destroy (window);
 446       window = NULL;
 447     }
 448
 449   return window;
 450 }