#include <stdio.h>

#include <gtk/gtk.h>

/* Create the list of "messages" */

static GtkWidget *create_list( void )

{

    GtkWidget *scrolled_window;

    GtkWidget *tree_view;

    GtkListStore *model;

    GtkTreeIter iter;

    GtkCellRenderer *cell;

    GtkTreeViewColumn *column;

    int i;

    /* Create a new scrolled window, with scrollbars only if needed */

    scrolled_window = gtk_scrolled_window_new (NULL, NULL);

    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),

				    GTK_POLICY_AUTOMATIC, 

				    GTK_POLICY_AUTOMATIC);

    model = gtk_list_store_new (1, G_TYPE_STRING);

    tree_view = gtk_tree_view_new ();

    gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scrolled_window), 

                                           tree_view);

    gtk_tree_view_set_model (GTK_TREE_VIEW (tree_view), GTK_TREE_MODEL (model));

    gtk_widget_show (tree_view);

    /* Add some messages to the window */

    for (i = 0; i < 10; i++) {

        gchar *msg = g_strdup_printf ("Message #%d", i);

        gtk_list_store_append (GTK_LIST_STORE (model), &iter);

        gtk_list_store_set (GTK_LIST_STORE (model), 

	                    &iter,

                            0, msg,

	                    -1);

	g_free (msg);

    }

    cell = gtk_cell_renderer_text_new ();

    column = gtk_tree_view_column_new_with_attributes ("Messages",

                                                       cell,

                                                       "text", 0,

                                                       NULL);

    gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view),

	  		         GTK_TREE_VIEW_COLUMN (column));

    return scrolled_window;

}

/* Add some text to our text widget - this is a callback that is invoked

when our window is realized. We could also force our window to be

realized with gtk_widget_realize, but it would have to be part of

a hierarchy first */

static void insert_text( GtkTextBuffer *buffer )

{

   GtkTextIter iter;

   gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);

   gtk_text_buffer_insert (buffer, &iter,   

    "From: pathfinder@nasa.gov\n"

    "To: mom@nasa.gov\n"

    "Subject: Made it!\n"

    "\n"

    "We just got in this morning. The weather has been\n"

    "great - clear but cold, and there are lots of fun sights.\n"

    "Sojourner says hi. See you soon.\n"

    " -Path\n", -1);

}

/* Create a scrolled text area that displays a "message" */

static GtkWidget *create_text( void )

{

   GtkWidget *scrolled_window;

   GtkWidget *view;

   GtkTextBuffer *buffer;

   view = gtk_text_view_new ();

   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));

   scrolled_window = gtk_scrolled_window_new (NULL, NULL);

   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),

		   	           GTK_POLICY_AUTOMATIC,

				   GTK_POLICY_AUTOMATIC);

   gtk_container_add (GTK_CONTAINER (scrolled_window), view);

   insert_text (buffer);

   gtk_widget_show_all (scrolled_window);

   return scrolled_window;

}

int main( int   argc,

          char *argv[] )

{

    GtkWidget *window;

    GtkWidget *vpaned;

    GtkWidget *list;

    GtkWidget *text;

    gtk_init (&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

    gtk_window_set_title (GTK_WINDOW (window), "Paned Windows");

    g_signal_connect (G_OBJECT (window), "destroy",

	              G_CALLBACK (gtk_main_quit), NULL);

    gtk_container_set_border_width (GTK_CONTAINER (window), 10);

    gtk_widget_set_size_request (GTK_WIDGET (window), 450, 400);

    /* create a vpaned widget and add it to our toplevel window */

    vpaned = gtk_vpaned_new ();

    gtk_container_add (GTK_CONTAINER (window), vpaned);

    gtk_widget_show (vpaned);

    /* Now create the contents of the two halves of the window */

    list = create_list ();

    gtk_paned_add1 (GTK_PANED (vpaned), list);

    gtk_widget_show (list);

    text = create_text ();

    gtk_paned_add2 (GTK_PANED (vpaned), text);

    gtk_widget_show (text);

    gtk_widget_show (window);

    gtk_main ();

    return 0;

}