#include "tabs.h"
#include <glib.h>

GtkWidget * create_vertical_tab_group( )
{
     GtkWidget *tab_group;
     tab_group = gtk_vbox_new (FALSE, 0);
     g_object_set_data(G_OBJECT (tab_group), "ignore_toggled_signal", FALSE);
     g_object_set_data(G_OBJECT (tab_group), "selected_tab", NULL);
     return tab_group;
}

GtkWidget * add_tab( gchar * name, GtkWidget *tab_group )
{
     GtkWidget *tab;
     tab = gtk_toggle_button_new_with_label (name);
     gtk_box_pack_start (GTK_BOX (tab_group), tab, FALSE, FALSE, 0);
     g_signal_connect (G_OBJECT (tab), "clicked",
 		       G_CALLBACK (select_tab), NULL);

     return tab;
}

void select_tab( GtkWidget *tab, gpointer data )
{
     GtkBox *tab_group;
     GtkBoxChild *child;
     GList *tabs;

     tab_group = GTK_BOX (gtk_widget_get_parent(tab));

     /* check if the signal should be ignored */
     if ((gboolean) g_object_get_data(G_OBJECT (tab_group), "ignore_toggled_signal") == TRUE)
	  return;

     /* ignore the signal until the right tab is selected and other tabs are unselected */
     g_object_set_data(G_OBJECT (tab_group), "ignore_toggled_signal", (gpointer) TRUE);

     tabs = tab_group->children;

     while (tabs)
     {
	  child = tabs->data;
	  /* if this tab should be selected, select it, otherwise unselect it */
	  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (child->widget), child->widget == tab ? TRUE : FALSE);

	  tabs = tabs->next;
     }

     /* do not ignore the signal anymore */
     g_object_set_data(G_OBJECT (tab_group), "ignore_toggled_signal", FALSE);
     g_object_set_data(G_OBJECT (tab_group), "selected_tab", tab);
}

void remove_tab( GtkWidget *tab, gpointer data )
{
     gtk_widget_destroy (tab);
}

unsigned int get_number_of_tabs( GtkWidget *tab_group )
{
     GList *tabs;
     unsigned int num = 0;

     tabs = (GTK_BOX (tab_group))->children;

     while (tabs)
     {
	  tabs = tabs->next;
	  num++;
     }

     return num;
}