#include <gtk/gtk.h>

static void

activate (GtkApplication *app,

          gpointer        user_data)

{

  /* Declare variables */

  GtkWidget *window;

  GtkWidget *text_view;

  GtkWidget *scrolled_window;

  GtkTextBuffer *buffer;

  /* Create a window with a title, and a default size */

  window = gtk_application_window_new (app);

  gtk_window_set_title (GTK_WINDOW (window), "TextView Example");

  gtk_window_set_default_size (GTK_WINDOW (window), 220, 200);

  /* The text buffer represents the text being edited */

  buffer = gtk_text_buffer_new (NULL);

  /* Text view is a widget in which can display the text buffer. 

   * The line wrapping is set to break lines in between words.

   */

  text_view = gtk_text_view_new_with_buffer (buffer);

  gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_WORD); 

  /* Create the scrolled window. Usually NULL is passed for both parameters so 

   * that it creates the horizontal/vertical adjustments automatically. Setting 

   * the scrollbar policy to automatic allows the scrollbars to only show up 

   * when 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); 

  /* The function directly below is used to add children to the scrolled window 

   * with scrolling capabilities (e.g text_view), otherwise, 

   * gtk_scrolled_window_add_with_viewport() would have been used

   */

  gtk_container_add (GTK_CONTAINER (scrolled_window), 

                                         text_view);

  gtk_container_set_border_width (GTK_CONTAINER (scrolled_window), 5);

  gtk_container_add (GTK_CONTAINER (window), scrolled_window);

  gtk_widget_show_all (window);

}

int

main (int argc, char **argv)

{

  GtkApplication *app;

  int status;

  app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);

  g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);

  status = g_application_run (G_APPLICATION (app), argc, argv);

  g_object_unref (app);

  return status;

}