windowSystem.h

/* Copyright (c) 2006-2011, Stefan Eilemann <eile@equalizergraphics.com>
 *                    2011, Daniel Pfeifer <daniel@pfeifer-mail.de>
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 2.1 as published
 * by the Free Software Foundation.
 *
 * 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 EQ_WINDOWSYSTEM_H
#define EQ_WINDOWSYSTEM_H

#include <eq/client/api.h>
#include <eq/client/types.h>

namespace eq
{

class WindowSystemIF
{
protected:
    EQ_API WindowSystemIF();
    virtual ~WindowSystemIF() {}

private:
    virtual std::string getName() const = 0;

    virtual SystemWindow* createWindow(Window* window) const = 0;
    virtual SystemPipe* createPipe(Pipe* pipe) const = 0;
    virtual MessagePump* createMessagePump() const = 0;
    virtual bool setupFont( ObjectManager& gl, const void* key,
                       const std::string& name, const uint32_t size ) const = 0;

    virtual void configInit( Node* /*node*/ ) {}
    virtual void configExit( Node* /*node*/ ) {}

protected:
    static uint32_t _setupLists( ObjectManager& gl, const void* key,
                                 const int num );

private:
    WindowSystemIF* _next;
    friend class WindowSystem;
};

#ifndef EQ_2_0_API
enum WindowSystemEnum
{
    WINDOW_SYSTEM_NONE = 0, // must be first
    WINDOW_SYSTEM_AGL,      
    WINDOW_SYSTEM_GLX,      
    WINDOW_SYSTEM_WGL,      
    WINDOW_SYSTEM_ALL       // must be last
};
#endif

class WindowSystem
{
public:
    EQ_API WindowSystem();
    EQ_API WindowSystem( std::string const& type );
#ifndef EQ_2_0_API
    EQ_API WindowSystem( const WindowSystemEnum type );
    ~WindowSystem() {}

    EQ_API bool operator == ( const WindowSystemEnum other ) const;
    EQ_API bool operator != ( const WindowSystemEnum other ) const;
    EQ_API operator WindowSystemEnum() const;
#endif

    static bool supports( std::string const& type );

    static void configInit( Node* node );
    static void configExit( Node* node );

    EQ_API std::string getName() const;

    EQ_API SystemWindow* createWindow( Window* window ) const;
    EQ_API SystemPipe* createPipe( Pipe* pipe ) const;
    EQ_API MessagePump* createMessagePump() const;
    EQ_API bool setupFont( ObjectManager& gl, const void* key,
                           const std::string& name, const uint32_t size ) const;

    EQ_API bool operator == ( const WindowSystem& other ) const;
    EQ_API bool operator != ( const WindowSystem& other ) const;

private:
    const WindowSystemIF* _impl;
    void _chooseImpl( const std::string& name );
};

EQ_API std::ostream& operator << ( std::ostream& os, const WindowSystem& );

EQ_API co::DataOStream& operator << ( co::DataOStream& os, const WindowSystem& );

EQ_API co::DataIStream& operator >> ( co::DataIStream& is, WindowSystem& ws );

} // namespace eq

#endif // EQ_WINDOWSYSTEM_H