graphics/engine.h

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/******************************************************************************
 * This file is part of the Gluon Development Platform
 * Copyright (C) 2008 Sacha Schutz <istdasklar@free.fr>
 * Copyright (C) 2008 Olivier Gueudelot <gueudelotolive@gmail.com>
 * Copyright (C) 2008 Charles Huet <packadal@gmail.com>
 * Copyright (c) 2010 Arjen Hiemstra <ahiemstra@heimr.nl>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef GLUONGRAPHICS_ENGINE_H
#define GLUONGRAPHICS_ENGINE_H

#include "gluon_graphics_export.h"
#include <core/singleton.h>

namespace GluonGraphics
{
    class Camera;
    class Mesh;
    class Material;
    class Item;
    class Texture;
    class Viewport;

    class GLUON_GRAPHICS_EXPORT Engine : public GluonCore::Singleton<Engine>
    {
            Q_OBJECT
        public:
            void initialize();

            Item* createItem( const QString& mesh );

            void destroyItem( Item* item );

            Material* createMaterial( const QString& name );

            void destroyMaterial( const QString& name );

            bool hasMaterial( const QString& name );

            Material* material( const QString& name );

            bool addMaterial( const QString& name, Material* material );

            void removeMaterial( const QString& name );

            Mesh* createMesh( const QString& name );

            void destroyMesh( const QString& name );

            bool hasMesh( const QString& name );

            Mesh* mesh( const QString& name );

            bool addMesh( const QString& name, Mesh* mesh );

            void removeMesh( const QString& name );

            Texture* createTexture( const QString& name );

            void destroyTexture( const QString& name );

            bool hasTexture( const QString& name );

            Texture* texture( const QString& name );

            bool addTexture( const QString& name, Texture* texture );

            void removeTexture( const QString& name );

            Camera* activeCamera();

            Viewport* currentViewport();

        public Q_SLOTS:
            void render();

            void setFramebufferSize( int width, int height );

            void setActiveCamera( Camera* camera );

            void setViewport( Viewport* viewport );

        Q_SIGNALS:
            void activeCameraChanged( Camera* );

        private:
            friend class GluonCore::Singleton<Engine>;

            Engine();
            ~Engine();
            Q_DISABLE_COPY( Engine );

            class EnginePrivate;
            EnginePrivate* const d;
    };
} //namespace

#endif // GLUONGRAPHICS_ENGINE_H

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