/* * * Sample Code for Gtk+ Programming in C, 1st Edition, Prentice Hall * * Copyright 2000 - 2002 Syd Logan, All Rights Reserved * * This code is distributed without warranty. You are free to use this * code for any purpose, however, if this code is republished or * redistributed in its original form, as hardcopy or electronically, * then you must include this copyright notice along with the code. * * Questions or comments regarding this code or any bugs it contains can * be directed to the author via e-mail at slogan@cts.com **/#include <gtk/gtk.h>static GtkWidget*make_tree (GtkWidget *window){  GtkWidget *root, *subtree, *node, *node1, *node2, *node3,    *node_fish, *node_inv, *node_mammal;  // create the root node of the tree.  root = gtk_tree_new();/*  gtk_tree_set_view_mode( GTK_TREE(root), GTK_TREE_VIEW_ITEM );*/  gtk_tree_set_view_lines( GTK_TREE(root), FALSE );  gtk_widget_show( root );  // create Fish, Invertebrates, and Mammals children of the root  // node  node_fish = node = gtk_tree_item_new_with_label("Fish");  gtk_tree_append(GTK_TREE(root), node_fish);  gtk_widget_show(node_fish);	  node_inv = node = gtk_tree_item_new_with_label("Invertebrates");  gtk_tree_append(GTK_TREE(root), node_inv);  gtk_widget_show(node_inv);	  node_mammal = node = gtk_tree_item_new_with_label("Mammals");  gtk_tree_append(GTK_TREE(root), node_mammal);  gtk_widget_show(node_mammal);	  // create the dangerous and non-dangerous subtrees of the Fish   // node  subtree = gtk_tree_new();  gtk_widget_show( subtree );  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node_fish ), subtree);  node1 = node = gtk_tree_item_new_with_label("Dangerous");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node2 = node = gtk_tree_item_new_with_label("Non-dangerous");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  // create the dangerous subtree of the Fish tree  subtree = gtk_tree_new();  gtk_widget_show( subtree );  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node1 ), subtree);  // Create the leaf nodes of the dangerous subtree of the Fish   // tree  node = gtk_tree_item_new_with_label("Great White Shark");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Stonefish");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  // create the non-dangerous subtree of the Fish tree  subtree = gtk_tree_new();  gtk_widget_show( subtree );  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node2 ), subtree);  // Create the leaf nodes of the non-dangerous subtree of the Fish   // tree  node = gtk_tree_item_new_with_label("Blue Banded Goby");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Grunion");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Leopard Shark");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Thornback");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  // create the dangerous and non-dangerous subtrees of the   // Invertebrates node  subtree = gtk_tree_new();  gtk_widget_show( subtree );  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node_inv ), subtree);  node1 = node = gtk_tree_item_new_with_label("Dangerous");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node2 = node = gtk_tree_item_new_with_label("Non-dangerous");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  // create the dangerous subtree of the Invertebrates tree  subtree = gtk_tree_new();  gtk_widget_show( subtree );  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node1 ), subtree);  // create the leaf nodes of the dangerous Invertebrates tree  node = gtk_tree_item_new_with_label("Sea Wasp");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  // create the non-dangerous subtree of the Invertebrates tree  subtree = gtk_tree_new();  gtk_widget_show( subtree );  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node2 ), subtree);  // create the leaf nodes of the non-dangerous Invertebrates tree  node = gtk_tree_item_new_with_label("Ochre Star");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Sea Pen");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Pacific Octopus");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Sea Urchin");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  // create the dangerous and non-dangerous subtrees of the   // Mammals node  subtree = gtk_tree_new();  gtk_widget_show( subtree );  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node_mammal ), subtree);  node1 = node = gtk_tree_item_new_with_label("Dangerous");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node2 = node = gtk_tree_item_new_with_label("Non-dangerous");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  // create the dangerous subtree of the Mammals tree  subtree = gtk_tree_new();  gtk_widget_show( subtree );  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node1 ), subtree);  // create the leaf nodes of the dangerous Mammals tree  node = gtk_tree_item_new_with_label("Killer Whale");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  // create the non-dangerous subtree of the Mammals tree  subtree = gtk_tree_new();  gtk_widget_show( subtree );  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node2 ), subtree);  // create the leaf nodes of the non-dangerous Mammals tree  node = gtk_tree_item_new_with_label("Gray Whale");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Sea Otter");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Bottlenose Dolphin");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  return root;}main( argc, argv )int argc;char *argv[];{  GtkWidget *window, *tree, *vbox;  gtk_init( &argc, &argv );  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);  gtk_widget_show( window );  gtk_window_position(GTK_WINDOW (window), GTK_WIN_POS_CENTER);  gtk_signal_connect(GTK_OBJECT (window), "destroy",    GTK_SIGNAL_FUNC(gtk_widget_destroy), &window);  gtk_window_set_title(GTK_WINDOW (window), "GtkTree Sample");  gtk_container_border_width(GTK_CONTAINER (window), 0);  tree = make_tree(window);  vbox = gtk_vbox_new( FALSE, 0 );  gtk_container_add(GTK_CONTAINER (window), vbox);  gtk_box_pack_start( GTK_BOX( vbox ), tree, FALSE, FALSE, 0 );  gtk_widget_show_all( vbox );  gtk_main();}