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

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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.          *
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 *      GNU General Public License for more details.                          *
 *                                                                            *
 *      You should have received a copy of the GNU General Public License     *
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 *      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA             *
 *      02111-1307, USA.                                                      *
 ******************************************************************************/

#include "BorderExtenderConstant.hpp"

using namespace Millie;


BorderExtenderConstant::BorderExtenderConstant(std::vector<float> & tabcouleur)
{
  _tabcolor = tabcouleur;
  _monochromatic = false;
}

BorderExtenderConstant::BorderExtenderConstant(float color)
{
  _color = color;
  _monochromatic = true;
}

bool BorderExtenderConstant::IsMonochromatic() const
{
  return _monochromatic;
}


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

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

  if(!IsMonochromatic()) {
    unsigned int numcomp = out.getNumComponents();
    if(numcomp != _tabcolor.size())
      throw IllegalArgument("BorderExtenderNull::extend");
  }

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

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

    float color;
    if(IsMonochromatic())
      color = _color;
    else
      color = _tabcolor[canal];

    for(int j = 0; j< out.getHeight(); j++)
      for(int i = 0; i< out.getWidth(); i++)
        out.setPixel(i,j, canal, color);

    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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