GTK+ pipe viewer

gpipeview.c

/*
  Simple GTK+ pipe viewer
  Contributors: Romiras
  Based on paned.c
  LICENSE: GNU GPLv3
*/

#include <stdio.h>
#include <unistd.h>
#include <gtk/gtk.h>

char input_buf[BUFSIZ];

void insert_text (GtkTextBuffer *buffer, FILE *file)
{
  GtkTextIter iter;
  int n;

  gtk_text_buffer_get_iter_at_offset(buffer, &iter, 0);

  while((n = read(0, input_buf, sizeof(input_buf))) != 0){
    gtk_text_buffer_insert(buffer, &iter, input_buf, -1);
  }
}
   
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, stdin);
   gtk_widget_show_all (scrolled_window);
   return scrolled_window;
}
   
int main( int   argc, char *argv[] )
{
    GtkWidget *window;
    GtkWidget *text;
    gtk_init (&argc, &argv);
   
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title (GTK_WINDOW (window), "Pipe text viewer");
    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), 800, 600);
   
    text = create_text ();
    gtk_container_add (GTK_CONTAINER (window), text);
    gtk_widget_show (text);
    gtk_widget_show (window);
    gtk_main ();
    return 0;
}