/*
   Copyright (C) 2001-2006, William Joseph.
   All Rights Reserved.

   This file is part of GtkRadiant.

   GtkRadiant is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   GtkRadiant is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GtkRadiant; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "filters.h"

#include "ifilter.h"

#include <list>

class EntityFilterWrapper : public Filter
{
bool m_active;
bool m_invert;
EntityFilter& m_filter;
public:
EntityFilterWrapper( EntityFilter& filter, bool invert ) : m_invert( invert ), m_filter( filter ){
}
void setActive( bool active ){
	m_active = active;
}
bool active(){
	return m_active;
}
bool filter( const Entity& entity ){
	return m_invert ^ m_filter.filter( entity );
}
};


typedef std::list<EntityFilterWrapper> EntityFilters;
EntityFilters g_entityFilters;

void add_entity_filter( EntityFilter& filter, int mask, bool invert ){
	g_entityFilters.push_back( EntityFilterWrapper( filter, invert ) );
	GlobalFilterSystem().addFilter( g_entityFilters.back(), mask );
}

bool entity_filtered( Entity& entity ){
	for ( EntityFilters::iterator i = g_entityFilters.begin(); i != g_entityFilters.end(); ++i )
	{
		if ( ( *i ).active() && ( *i ).filter( entity ) ) {
			return true;
		}
	}
	return false;
}