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/******************************************************************************
 *       __    _    _   _       _       _   _____                             *
 *       | \  / |  | | | |     | |     | |  | ___|                            *
 *       |  \/  |  | | | |     | |     | |  | |_                              *
 *       |      |  | | | |     | |     | |  |  _|                             *
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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 "BorderExtenderNull.hpp"

using namespace Millie;

BorderExtenderNull::BorderExtenderNull()
{}

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

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


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

 for(int canal = 0; canal< out.getNumComponents(); canal++)
 {
  for(int j = 0; j< out.getHeight(); j++)
   for(int i = 0; i< out.getWidth(); i++)
     out.setPixel(i,j, canal, 0.0f);

  for(int j = toppadding; j< (in.getHeight()+ toppadding); j++)
   for(int i = leftpadding; i < (in.getWidth() + leftpadding); i++)
     out.setPixel(i, j, canal, in.getPixel(i-leftpadding, j-toppadding, canal));


 }
}

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