/*
  NoteBooks (Tabs)
  http://www.gtk.org/tutorial/x1471.html
  gcc `pkg-config --cflags --libs gtk+-2.0` -o 21 21.c &&./21
*/

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

/* This function rotates the position of the tabs */
static void rotate_book( GtkButton   *button,
                         GtkNotebook *notebook )
{
    gtk_notebook_set_tab_pos (notebook, (notebook->tab_pos + 1) % 4);
}

/* Add/Remove the page tabs and the borders */
static void tabsborder_book( GtkButton   *button,
                             GtkNotebook *notebook )
{
    gint tval = FALSE;
    gint bval = FALSE;
    if (notebook->show_tabs == 0)
	    tval = TRUE; 
    if (notebook->show_border == 0)
	    bval = TRUE;
    
    gtk_notebook_set_show_tabs (notebook, tval);
    gtk_notebook_set_show_border (notebook, bval);
}

/* Remove a page from the notebook */
static void remove_book( GtkButton   *button,
                         GtkNotebook *notebook )
{
    gint page;
    
    page = gtk_notebook_get_current_page (notebook);
    gtk_notebook_remove_page (notebook, page);
    /* Need to refresh the widget -- 
     This forces the widget to redraw itself. */
    gtk_widget_queue_draw (GTK_WIDGET (notebook));
}

static gboolean delete( GtkWidget *widget,
                        GtkWidget *event,
                        gpointer   data )
{
    gtk_main_quit ();
    return FALSE;
}

int main( int argc, char *argv[] )
{
    GtkWidget *window;
    GtkWidget *button;
    GtkWidget *table;
    GtkWidget *notebook;
    GtkWidget *frame;
    GtkWidget *label;
    GtkWidget *checkbutton;
    int i;
    char bufferf[32];
    char bufferl[32];
    
    gtk_init (&argc, &argv);
    
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    
    g_signal_connect (G_OBJECT (window), "delete_event",
	              G_CALLBACK (delete), NULL);
    
    gtk_container_set_border_width (GTK_CONTAINER (window), 10);

    table = gtk_table_new (3, 6, FALSE);
    gtk_container_add (GTK_CONTAINER (window), table);
    
    /* Create a new notebook, place the position of the tabs */
    notebook = gtk_notebook_new ();
    gtk_notebook_set_tab_pos (GTK_NOTEBOOK (notebook), GTK_POS_TOP);
    gtk_table_attach_defaults (GTK_TABLE (table), notebook, 0, 6, 0, 1);
    gtk_widget_show (notebook);
    
    /* Let's append a bunch of pages to the notebook */
    for (i = 0; i < 5; i++) {
	sprintf(bufferf, "Append Frame %d", i + 1);
	sprintf(bufferl, "Page %d", i + 1);
	
	frame = gtk_frame_new (bufferf);
	gtk_container_set_border_width (GTK_CONTAINER (frame), 10);
	gtk_widget_set_size_request (frame, 100, 75);
	gtk_widget_show (frame);
	
	label = gtk_label_new (bufferf);
	gtk_container_add (GTK_CONTAINER (frame), label);
	gtk_widget_show (label);
	
	label = gtk_label_new (bufferl);
	gtk_notebook_append_page (GTK_NOTEBOOK (notebook), frame, label);
    }
      
    /* Now let's add a page to a specific spot */
    checkbutton = gtk_check_button_new_with_label ("Check me please!");
    gtk_widget_set_size_request (checkbutton, 100, 75);
    gtk_widget_show (checkbutton);
   
    label = gtk_label_new ("Add page");
    gtk_notebook_insert_page (GTK_NOTEBOOK (notebook), checkbutton, label, 2);
    
    /* Now finally let's prepend pages to the notebook */
    for (i = 0; i < 5; i++) {
	sprintf (bufferf, "Prepend Frame %d", i + 1);
	sprintf (bufferl, "PPage %d", i + 1);
	
	frame = gtk_frame_new (bufferf);
	gtk_container_set_border_width (GTK_CONTAINER (frame), 10);
	gtk_widget_set_size_request (frame, 100, 75);
	gtk_widget_show (frame);
	
	label = gtk_label_new (bufferf);
	gtk_container_add (GTK_CONTAINER (frame), label);
	gtk_widget_show (label);
	
	label = gtk_label_new (bufferl);
	gtk_notebook_prepend_page (GTK_NOTEBOOK (notebook), frame, label);
    }
    
    /* Set what page to start at (page 4) */
    gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook), 3);

    /* Create a bunch of buttons */
    button = gtk_button_new_with_label ("close");
    g_signal_connect_swapped (G_OBJECT (button), "clicked",
			      G_CALLBACK (delete), NULL);
    gtk_table_attach_defaults (GTK_TABLE (table), button, 0, 1, 1, 2);
    gtk_widget_show (button);
    
    button = gtk_button_new_with_label ("next page");
    g_signal_connect_swapped (G_OBJECT (button), "clicked",
			      G_CALLBACK (gtk_notebook_next_page),
			      G_OBJECT (notebook));
    gtk_table_attach_defaults (GTK_TABLE (table), button, 1, 2, 1, 2);
    gtk_widget_show (button);
    
    button = gtk_button_new_with_label ("prev page");
    g_signal_connect_swapped (G_OBJECT (button), "clicked",
			      G_CALLBACK (gtk_notebook_prev_page),
			      G_OBJECT (notebook));
    gtk_table_attach_defaults (GTK_TABLE (table), button, 2, 3, 1, 2);
    gtk_widget_show (button);
    
    button = gtk_button_new_with_label ("tab position");
    g_signal_connect (G_OBJECT (button), "clicked",
                      G_CALLBACK (rotate_book),
	              (gpointer) notebook);
    gtk_table_attach_defaults (GTK_TABLE (table), button, 3, 4, 1, 2);
    gtk_widget_show (button);
    
    button = gtk_button_new_with_label ("tabs/border on/off");
    g_signal_connect (G_OBJECT (button), "clicked",
                      G_CALLBACK (tabsborder_book),
                      (gpointer) notebook);
    gtk_table_attach_defaults (GTK_TABLE (table), button, 4, 5, 1, 2);
    gtk_widget_show (button);
    
    button = gtk_button_new_with_label ("remove page");
    g_signal_connect (G_OBJECT (button), "clicked",
                      G_CALLBACK (remove_book),
                      (gpointer) notebook);
    gtk_table_attach_defaults (GTK_TABLE (table), button, 5, 6, 1, 2);
    gtk_widget_show (button);
    
    gtk_widget_show (table);
    gtk_widget_show (window);
    
    gtk_main ();
    
    return 0;
}