/home/neoflo/smb4k/SERVEUR/Millie/trunk/src/BorderExtenderWrap.cpp

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/******************************************************************************
 *       __    _    _   _       _       _   _____                             *
 *       | \  / |  | | | |     | |     | |  | ___|                            *
 *       |  \/  |  | | | |     | |     | |  | |_                              *
 *       |      |  | | | |     | |     | |  |  _|                             *
 *       | |\/| |  | | | |__   | |__   | |  | |__                             *
 *       |_|  |_|  |_| |____|  |____|  |_|  |____|                            *
 * __________________________________________________________________________ *
 *                 Multifunctional Library For Image Processing               *
 *                                                                            *
 *                                                                            *
 *                                                                            *
 *      (c) Copyright 2007 by Humbert Florent                                 *
 *                                                                            *
 *      This program 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; only version 2 of the License.          *
 *                                                                            *
 *      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 for more details.                          *
 *                                                                            *
 *      You should have received a copy of the GNU General Public License     *
 *      along with this program; if not, write to the Free Software           *
 *      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA             *
 *      02111-1307, USA.                                                      *
 ******************************************************************************/

#include "BorderExtenderWrap.hpp"

using namespace Millie;


BorderExtenderWrap::BorderExtenderWrap()
{}

void BorderExtenderWrap::extend(Image & out,
                                const Image & in,
                                int toppadding,
                                int leftpadding,
                                int rightpadding,
                                int bottompadding) const
{
  if(out.getNumComponents() != in.getNumComponents())
    throw Millie::IllegalArgument("BorderExtenderWrap::extend");

  if(toppadding<0 || leftpadding<0 || rightpadding<0 || bottompadding<0)
    throw Millie::IllegalArgument("BorderExtenderWrap::extend");


  out.resize(in.getWidth() + leftpadding + rightpadding,
             in.getHeight() + bottompadding + toppadding);

  int inlargeur = in.getWidth();
  int inhauteur = in.getHeight();

  for(int canal = 0; canal< out.getNumComponents(); canal++)
  {

    /*centre*/
    for(int j = 0; j< out.getHeight(); j++)
      for(int i = 0; i < out.getWidth(); i++)
        out.setPixel(i, j, canal,
                in.getPixel( /*symétrisation à l'aide de %*/
                       (i-leftpadding + inlargeur) % inlargeur,
                       (j-toppadding + inhauteur) % inhauteur, canal));


  }
}

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