/*
 Copyright (C) 2010-2017 Kristian Duske
 
 This file is part of TrenchBroom.
 
 TrenchBroom 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 3 of the License, or
 (at your option) any later version.
 
 TrenchBroom 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 TrenchBroom. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef TrenchBroom_CollectMatchingBrushFacesVisitor
#define TrenchBroom_CollectMatchingBrushFacesVisitor

#include "CollectionUtils.h"
#include "Model/Brush.h"
#include "Model/BrushFace.h"
#include "Model/BrushFacePredicates.h"
#include "Model/ModelTypes.h"
#include "Model/NodeVisitor.h"

namespace TrenchBroom {
    namespace Model {
        template <typename P>
        class CollectMatchingBrushFacesVisitor : public NodeVisitor {
        private:
            P m_p;
            BrushFaceList m_faces;
        public:
            CollectMatchingBrushFacesVisitor(const P& p = P()) : m_p(p) {}
            const BrushFaceList& faces() const { return m_faces; }
        private:
            void doVisit(World* world)   override {}
            void doVisit(Layer* layer)   override {}
            void doVisit(Group* group)   override {}
            void doVisit(Entity* entity) override {}
            void doVisit(Brush* brush)   override {
                for (BrushFace* face : brush->faces()) {
                    if (m_p(face))
                        m_faces.push_back(face);
                }
            }
        };
        
        using CollectBrushFacesVisitor = CollectMatchingBrushFacesVisitor<BrushFacePredicates::True>;
    }
}

#endif /* defined(TrenchBroom_CollectMatchingBrushFacesVisitor) */
