/*
   (c) Copyright 2000-2002  convergence integrated media GmbH.
   All rights reserved.

   Written by Denis Oliver Kropp <dok@convergence.de>,
              Andreas Hundt <andi@convergence.de> and
              Sven Neumann <sven@convergence.de>

   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 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., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <iostream>

#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>

#include <dfb++.h>

#include "dfbapp.h"
#include "dfbimage.h"

class DFBShow : public DFBApp {
public:
     DFBShow() {
     }

     virtual ~DFBShow() {
     }

private:
     /* called after initialization */
     virtual bool Setup( int width, int height ) {
          m_image.LoadImage( m_filename );

          return true;
     }

     /* render callback */
     virtual void Render( IDirectFBSurface *surface ) {
          int x = ((int) surface->GetWidth()  - (int) m_image.GetWidth())  / 2;
          int y = ((int) surface->GetHeight() - (int) m_image.GetHeight()) / 2;

          surface->Clear();

          m_image.PrepareTarget( surface );

          surface->Blit( m_image, NULL, x, y );
     }

     bool ParseArgs( int argc, char *argv[] ) {
          /* Parse the command line. */
          if (argc != 2 || !argv[1] || !argv[1][0]) {
               std::cerr << std::endl;
               std::cerr << "Usage: " << argv[0] << " <filename>" << std::endl;
               std::cerr << std::endl;
               return false;
          }

          /* Create the main interface. */
          m_filename = argv[1];

          return true;
     }

private:
     std::string m_filename;
     DFBImage    m_image;
};

int
main( int argc, char *argv[] )
{
     DFBShow app;

     try {
          /* Initialize DirectFB command line parsing. */
          DirectFB::Init( &argc, &argv );

          /* Parse remaining arguments and run. */
          if (app.Init( argc, argv ))
               app.Run();
     }
     catch (DFBException *ex) {
          /*
           * Exception has been caught, destructor of 'app' will deinitialize
           * anything at return time (below) that got initialized until now.
           */
          std::cerr << std::endl;
          std::cerr << "Caught exception!" << std::endl;
          std::cerr << "  -- " << ex << std::endl;
     }

     return 0;
}