#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <string.h>
#include <gtk/gtk.h>

static GtkTextBuffer *buffer;
static GtkTextView *view;

static void *
test_func (void *data)
{
	int i = 0;
	GtkTextIter end;
	GtkTextMark *mark;

	while (TRUE) {
		char temp [BUFSIZ];

		sprintf (temp, "TEST: %d\n", ++i);

		gtk_text_buffer_get_end_iter (buffer, &end);
		gtk_text_buffer_insert (buffer, &end, temp, strlen (temp));

		gtk_text_view_scroll_to_iter (view, &end, 0.0, FALSE, 0.0, 1.0);

		sleep (1);
	}
}

int
main (void)
{
	GtkWindow *window;
	GtkVBox *vbox;
	GtkScrolledWindow *sw;
	pthread_t thread;

	gtk_init (0, NULL);

	window = (GtkWindow *) gtk_window_new (GTK_WINDOW_TOPLEVEL);
	gtk_window_set_title (window, "Log Viewer");
	gtk_window_set_default_size (window, 720, 250);

	vbox = (GtkVBox *) gtk_vbox_new (FALSE, 0);

	buffer = gtk_text_buffer_new (gtk_text_tag_table_new ());

	view = (GtkTextView *) gtk_text_view_new_with_buffer (buffer);
	gtk_text_view_set_editable (view, FALSE);
	gtk_text_view_set_cursor_visible (view, TRUE);

	sw = (GtkScrolledWindow *) gtk_scrolled_window_new (NULL, NULL);

	gtk_container_add (GTK_CONTAINER (sw), GTK_WIDGET (view));
	gtk_container_add (GTK_CONTAINER (vbox), GTK_WIDGET (sw));

	gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (vbox));

	gtk_widget_show_all (GTK_WIDGET (window));

	pthread_create (&thread, 0, test_func, buffer);

	gtk_main ();
	return 0;
}