/home/neoflo/smb4k/SERVEUR/Millie/trunk/src/BorderExtenderCopy.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 "BorderExtenderCopy.hpp"

using namespace Millie;


BorderExtenderCopy::BorderExtenderCopy()
{}

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

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


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

  for(int canal = 0; canal< out.getNumComponents(); canal++)
  {
    /*coin haut gauche*/
    for(int j = 0; j< toppadding; j++)
      for(int i = 0; i< leftpadding; i++)
        out.setPixel(i,j, canal, in.getPixel(0,0,canal));

    /*ligne supérieur*/
    for(int j = 0; j< toppadding; j++)
      for(int i = leftpadding; i< (in.getWidth() + leftpadding); i++)
        out.setPixel(i,j, canal, in.getPixel( i-leftpadding , 0, canal));

    /*coin supérieur droite*/
    for(int j = 0; j< toppadding; j++)
      for(int i = (in.getWidth()+ leftpadding); i< out.getWidth(); i++)
        out.setPixel(i,j, canal, in.getPixel(in.getWidth()-1, 0, canal));

    /*ligne gauche*/
    for(int j = toppadding; j<(in.getHeight()+ toppadding); j++)
      for(int i = 0; i<leftpadding; i++)
        out.setPixel(i,j, canal, in.getPixel(0, j-toppadding, canal));

    /*ligne droite*/
    for(int j = toppadding; j<(in.getHeight()+ toppadding); j++)
      for(int i = (in.getWidth()+ leftpadding); i< out.getWidth(); i++)
        out.setPixel(i,j, canal, in.getPixel(in.getWidth()-1, j-toppadding, canal));

    /*coin bas gauche*/
    for(int j = (in.getHeight()+ toppadding); j< out.getHeight(); j++)
      for(int i = 0; i< leftpadding; i++)
        out.setPixel(i,j, canal, in.getPixel(0, in.getHeight()-1, canal));

    /*coin bas droit*/
    for(int j = (in.getHeight()+ toppadding); j< out.getHeight(); j++)
      for(int i = (in.getWidth()+ leftpadding); i< out.getWidth(); i++)
        out.setPixel(i,j, canal, in.getPixel(in.getWidth()-1, in.getHeight()-1, canal));

    /*ligne bas*/
    for(int j = (in.getHeight()+ toppadding); j< out.getHeight(); j++)
      for(int i = leftpadding; i<(in.getWidth()+ leftpadding); i++)
        out.setPixel(i,j, canal, in.getPixel(i-leftpadding, in.getHeight()-1, canal));

    /*centre*/
    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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