vmap/plugins/entity/filters.h

/*
   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
 */

#if !defined( INCLUDED_FILTERS_H )
#define INCLUDED_FILTERS_H

#include "ifilter.h"

#include "generic/callback.h"
#include "scenelib.h"

class Entity;

class EntityFilter {
public:
virtual bool filter(const Entity &entity) const = 0;
};

bool entity_filtered(Entity &entity);

void add_entity_filter(EntityFilter &filter, int mask, bool invert = false);

class ClassnameFilter : public Filterable {
scene::Node &m_node;
public:
Entity &m_entity;

ClassnameFilter(Entity &entity, scene::Node &node) : m_node(node), m_entity(entity)
{
}

~ClassnameFilter()
{
}

void instanceAttach()
{
	GlobalFilterSystem().registerFilterable(*this);
}

void instanceDetach()
{
	GlobalFilterSystem().unregisterFilterable(*this);
}

void updateFiltered()
{
	if (entity_filtered(m_entity)) {
		m_node.enable(scene::Node::eFiltered);
	} else {
		m_node.disable(scene::Node::eFiltered);
	}
}

void classnameChanged(const char *value)
{
	updateFiltered();
}

typedef MemberCaller<ClassnameFilter, void (
			     const char *), &ClassnameFilter::classnameChanged> ClassnameChangedCaller;
};

#endif