2 #define GTK_ENABLE_BROKEN
6 /* for all the GtkItem:: and GtkTreeItem:: signals */
7 static void cb_itemsignal( GtkWidget *item,
13 /* It's a Bin, so it has one child, which we know to be a
15 label = GTK_LABEL (GTK_BIN (item)->child);
16 /* Get the text of the label */
17 gtk_label_get (label, &name);
18 /* Get the level of the tree which the item is in */
19 g_print ("%s called for item %s->%p, level %d\n", signame, name,
20 item, GTK_TREE (item->parent)->level);
23 /* Note that this is never called */
24 static void cb_unselect_child( GtkWidget *root_tree,
28 g_print ("unselect_child called for root tree %p, subtree %p, child %p\n",
29 root_tree, subtree, child);
32 /* Note that this is called every time the user clicks on an item,
33 whether it is already selected or not. */
34 static void cb_select_child (GtkWidget *root_tree, GtkWidget *child,
37 g_print ("select_child called for root tree %p, subtree %p, child %p\n",
38 root_tree, subtree, child);
41 static void cb_selection_changed( GtkWidget *tree )
45 g_print ("selection_change called for tree %p\n", tree);
46 g_print ("selected objects are:\n");
48 i = GTK_TREE_SELECTION_OLD (tree);
54 /* Get a GtkWidget pointer from the list node */
55 item = GTK_WIDGET (i->data);
56 label = GTK_LABEL (GTK_BIN (item)->child);
57 gtk_label_get (label, &name);
58 g_print ("\t%s on level %d\n", name, GTK_TREE
59 (item->parent)->level);
67 GtkWidget *window, *scrolled_win, *tree;
68 static gchar *itemnames[] = {"Foo", "Bar", "Baz", "Quux",
72 gtk_init (&argc, &argv);
74 /* a generic toplevel window */
75 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
76 g_signal_connect (G_OBJECT (window), "delete_event",
77 G_CALLBACK (gtk_main_quit), NULL);
78 gtk_container_set_border_width (GTK_CONTAINER (window), 5);
80 /* A generic scrolled window */
81 scrolled_win = gtk_scrolled_window_new (NULL, NULL);
82 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
84 GTK_POLICY_AUTOMATIC);
85 gtk_widget_set_size_request (scrolled_win, 150, 200);
86 gtk_container_add (GTK_CONTAINER (window), scrolled_win);
87 gtk_widget_show (scrolled_win);
89 /* Create the root tree */
90 tree = gtk_tree_new ();
91 g_print ("root tree is %p\n", tree);
92 /* connect all GtkTree:: signals */
93 g_signal_connect (G_OBJECT (tree), "select_child",
94 G_CALLBACK (cb_select_child), tree);
95 g_signal_connect (G_OBJECT (tree), "unselect_child",
96 G_CALLBACK (cb_unselect_child), tree);
97 g_signal_connect (G_OBJECT(tree), "selection_changed",
98 G_CALLBACK(cb_selection_changed), tree);
99 /* Add it to the scrolled window */
100 gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scrolled_win),
102 /* Set the selection mode */
103 gtk_tree_set_selection_mode (GTK_TREE (tree),
104 GTK_SELECTION_MULTIPLE);
106 gtk_widget_show (tree);
108 for (i = 0; i < 5; i++){
109 GtkWidget *subtree, *item;
112 /* Create a tree item */
113 item = gtk_tree_item_new_with_label (itemnames[i]);
114 /* Connect all GtkItem:: and GtkTreeItem:: signals */
115 g_signal_connect (G_OBJECT (item), "select",
116 G_CALLBACK (cb_itemsignal), "select");
117 g_signal_connect (G_OBJECT (item), "deselect",
118 G_CALLBACK (cb_itemsignal), "deselect");
119 g_signal_connect (G_OBJECT (item), "toggle",
120 G_CALLBACK (cb_itemsignal), "toggle");
121 g_signal_connect (G_OBJECT (item), "expand",
122 G_CALLBACK (cb_itemsignal), "expand");
123 g_signal_connect (G_OBJECT (item), "collapse",
124 G_CALLBACK (cb_itemsignal), "collapse");
125 /* Add it to the parent tree */
126 gtk_tree_append (GTK_TREE (tree), item);
127 /* Show it - this can be done at any time */
128 gtk_widget_show (item);
129 /* Create this item's subtree */
130 subtree = gtk_tree_new ();
131 g_print ("-> item %s->%p, subtree %p\n", itemnames[i], item,
134 /* This is still necessary if you want these signals to be called
135 for the subtree's children. Note that selection_change will be
136 signalled for the root tree regardless. */
137 g_signal_connect (G_OBJECT (subtree), "select_child",
138 G_CALLBACK (cb_select_child), subtree);
139 g_signal_connect (G_OBJECT (subtree), "unselect_child",
140 G_CALLBACK (cb_unselect_child), subtree);
141 /* This has absolutely no effect, because it is completely ignored
143 gtk_tree_set_selection_mode (GTK_TREE (subtree),
144 GTK_SELECTION_SINGLE);
145 /* Neither does this, but for a rather different reason - the
146 view_mode and view_line values of a tree are propagated to
147 subtrees when they are mapped. So, setting it later on would
148 actually have a (somewhat unpredictable) effect */
149 gtk_tree_set_view_mode (GTK_TREE (subtree), GTK_TREE_VIEW_ITEM);
150 /* Set this item's subtree - note that you cannot do this until
151 AFTER the item has been added to its parent tree! */
152 gtk_tree_item_set_subtree (GTK_TREE_ITEM (item), subtree);
154 for (j = 0; j < 5; j++){
157 /* Create a subtree item, in much the same way */
158 subitem = gtk_tree_item_new_with_label (itemnames[j]);
159 /* Connect all GtkItem:: and GtkTreeItem:: signals */
160 g_signal_connect (G_OBJECT (subitem), "select",
161 G_CALLBACK (cb_itemsignal), "select");
162 g_signal_connect (G_OBJECT (subitem), "deselect",
163 G_CALLBACK (cb_itemsignal), "deselect");
164 g_signal_connect (G_OBJECT (subitem), "toggle",
165 G_CALLBACK (cb_itemsignal), "toggle");
166 g_signal_connect (G_OBJECT (subitem), "expand",
167 G_CALLBACK (cb_itemsignal), "expand");
168 g_signal_connect (G_OBJECT (subitem), "collapse",
169 G_CALLBACK (cb_itemsignal), "collapse");
170 g_print ("-> -> item %s->%p\n", itemnames[j], subitem);
171 /* Add it to its parent tree */
172 gtk_tree_append (GTK_TREE (subtree), subitem);
174 gtk_widget_show (subitem);
178 /* Show the window and loop endlessly */
179 gtk_widget_show (window);