SDLSurface.h

/******************************************************************************
Este arquivo eh parte da implementacao do ambiente declarativo do middleware
Ginga (Ginga-NCL).

Direitos Autorais Reservados (c) 1989-2007 PUC-Rio/Laboratorio TeleMidia

Este programa eh software livre; voce pode redistribui-lo e/ou modificah-lo sob
os termos da Licenca Publica Geral GNU versao 2 conforme publicada pela Free
Software Foundation.

Este programa eh distribuido na expectativa de que seja util, porem, SEM
NENHUMA GARANTIA; nem mesmo a garantia implicita de COMERCIABILIDADE OU
ADEQUACAO A UMA FINALIDADE ESPECIFICA. Consulte a Licenca Publica Geral do
GNU versao 2 para mais detalhes.

Voce deve ter recebido uma copia da Licenca Publica Geral do GNU versao 2 junto
com este programa; se nao, escreva para a Free Software Foundation, Inc., no
endereco 59 Temple Street, Suite 330, Boston, MA 02111-1307 USA.

Para maiores informacoes:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
******************************************************************************
This file is part of the declarative environment of middleware Ginga (Ginga-NCL)

Copyright: 1989-2007 PUC-RIO/LABORATORIO TELEMIDIA, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.

This program 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 version 2 for more
details.

You should have received a copy of the GNU General Public License version 2
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

For further information contact:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
*******************************************************************************/

#ifndef SDLSURFACE_H_
#define SDLSURFACE_H_

#include "SDL.h"

#include <pthread.h>

#include "mb/interface/IWindow.h"
#include "mb/interface/sdl/output/SDLWindow.h"
#include "mb/interface/IFontProvider.h"

#include <vector>
using namespace std;

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace core {
namespace mb {
    class SDLSurface : public ISurface {
        private:
            GingaScreenID myScreen;
            SDL_Surface* sur;
            SDL_Surface* pending;
            IWindow* parent;
            bool hasExtHandler;
            IColor* chromaColor;
            IColor* borderColor;
            IColor* bgColor;
            IColor* surfaceColor;
            IFontProvider* iFont;
            int caps;
            bool isDeleting;

            vector<DrawData*> drawData;
            pthread_mutex_t ddMutex;

            pthread_mutex_t sMutex;
            pthread_mutex_t pMutex;

        public:
            SDLSurface(GingaScreenID screenId);
            SDLSurface(GingaScreenID screenId, void* underlyingSurface);

            virtual ~SDLSurface();

        private:
            void releasePendingSurface();
            bool createPendingSurface();
            void checkPendingSurface();
            void fill();
            void releaseChromaColor();
            void releaseBgColor();
            void releaseBorderColor();
            void releaseSurfaceColor();

            void releaseFont();
            void releaseDrawData();

            void initialize(GingaScreenID screenId);

        public:
            void takeOwnership();

            SDL_Surface* getPendingSurface();

            void setExternalHandler(bool extHandler);
            bool hasExternalHandler();

            void addCaps(int caps);
            void setCaps(int caps);
            int getCap(string cap);
            int getCaps();
            bool setParentWindow(void* parentWindow); //IWindow
            void* getParentWindow();                  //IWindow
            void* getSurfaceContent();
            void setSurfaceContent(void* surface);
            void clearContent();
            void clearSurface();

            vector<DrawData*>* createDrawDataList();

        private:
            void pushDrawData(int c1, int c2, int c3, int c4, short type);

        public:
            void drawLine(int x1, int y1, int x2, int y2);
            void drawRectangle(int x, int y, int w, int h);
            void fillRectangle(int x, int y, int w, int h);
            void drawString(int x, int y, const char* txt);
            void setChromaColor(int r, int g, int b, int alpha);
            IColor* getChromaColor();
            void setBorderColor(int r, int g, int b, int alpha);
            IColor* getBorderColor();
            void setBgColor(int r, int g, int b, int alpha);
            IColor* getBgColor();
            void setColor(int r, int g, int b, int alpha);
            IColor* getColor();
            void setSurfaceFont(void* font);
            void getStringExtents(const char* text, int* w, int* h);
            void flip();
            void scale(double x, double y);

        private:
            void initContentSurface();
            SDL_Surface* createSurface();

        public:
            void blit(
                    int x,
                    int y,
                    ISurface* src=NULL,
                    int srcX=-1, int srcY=-1, int srcW=-1, int srcH=-1);

            void setClip(int x, int y, int w, int h);
            void getSize(int* width, int* height);
            string getDumpFileUri();
            void setMatrix(void* matrix);
    };
}
}
}
}
}
}

#endif /*SDLSURFACE_H_*/