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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 "ImageHSL.hpp"

#include <iostream>

using namespace Millie;

ImageHSL::ImageHSL(int largeur, int hauteur) :
    TImage<float>(largeur, hauteur, 3)
{}

ImageHSL::ImageHSL() : TImage<float>(3)
{}

ImageHSL::~ImageHSL()
{
}

float ImageHSL::getLightnessPixel(int x, int y) const
{
  return getPixel(x, y, 2);
}
void  ImageHSL::setLightnessPixel(int x, int y, float value)
{
  setPixel(x, y, 2, value);
}
float ImageHSL::getHuePixel(int x, int y) const
{
  return getPixel(x, y, 0);
}
void ImageHSL::setHuePixel(int x, int y, float value)
{
  setPixel(x, y, 0, value);
}
float ImageHSL::getSaturationPixel(int x, int y) const
{
  return getPixel(x, y, 1);
}
void ImageHSL::setSaturationPixel(int x, int y, float value)
{
  return setPixel(x, y, 1, value);
}


void ImageHSL::addToLightness(int value)
{
  for(int y = 0; y<getHeight(); y++)
    for(int x = 0; x<getWidth(); x++)
    {
      float tempo = getLightnessPixel(x,y);
      tempo += value/100.0f;
      tempo = std::min(1.0f, tempo);
      tempo = std::max(0.0f,tempo);
      setLightnessPixel(x,y, tempo);
    }
}

void ImageHSL::addToSaturation(int value)
{
  for(int y = 0; y<getHeight(); y++)
    for(int x = 0; x<getWidth(); x++)
    {
      float tempo = getSaturationPixel(x,y);
      tempo += value/100.0f;
      tempo = std::min(1.0f, tempo);
      tempo = std::max(0.0f,tempo);
      setSaturationPixel(x,y, tempo);
    }
}


void ImageHSL::addToHue(int value)
{
  if(value< -180.0f || value>180.0f)
    throw OutOfRange("addToHue");

  for(int y = 0; y<getHeight(); y++)
    for(int x = 0; x<getWidth(); x++)
    {
      float tempo = getHuePixel(x,y);
      tempo += value;
      if(tempo>360.0f)
        tempo -= 360.0f;
      if(tempo<0.0f)
        ;
      tempo += 360.0f;

      setHuePixel(x,y, tempo);
    }
}

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