/*********************************************************************/
/*                                                                   */
/* Copyright 2022-2023 Rémi Synave - remi.synave@univ-littoral.fr    */
/*                                                                   */
/* This file is part of DSL.                                         */
/* This software uses Qt to build the Graphical User Interface       */
/* https://www.qt.io/                                                */
/*                                                                   */
/* DSL 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, either version 3 of the License, */
/* or (at your option) any later version.                            */
/*                                                                   */
/* DSL 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 DSL. If not, see <http://www.gnu.org/licenses/>.       */
/*                                                                   */
/*********************************************************************/

#ifndef WORKAREA_HPP
#define WORKAREA_HPP

#include <string>

#include <QWidget>
#include <QPainter>
#include <QMouseEvent>
#include <QPoint>
#include <QImage>
#include <QImageReader>

#include "StrengthLine.hpp"



class WorkArea: public QWidget
{
  
  Q_OBJECT

  
private:
  const int taillePoint = 10;
  const int epaisseurLigne = 6;
  
  unsigned int screenSizeX, screenSizeY;
  bool readOnly;
  bool modificationInProgress;

  QImage *original;
  QImage *img;
  double resizeFactor;
  QList < QPoint * >liste_points;
  int indexPointClicked;

  int maxLines;

  
protected:
  void paintEvent (QPaintEvent * event) override;
  void mousePressEvent (QMouseEvent * event);
  void mouseMoveEvent (QMouseEvent * event);
  void mouseReleaseEvent (QMouseEvent * event);

  
public:
  WorkArea (int screenSizeX, int screenSizeY, QWidget * parent = nullptr);
  WorkArea (int screenSizeX, int screenSizeY, const std::string & filename, QWidget * parent = nullptr);
  WorkArea (int screenSizeX, int screenSizeY, const std::string & imageFilename, const std::string & SLFilename, bool readOnly, QWidget * parent = nullptr);
   ~WorkArea ();
  
  void paint (QPainter & painter);
  
  void loadImage (const std::string & filename);
  void loadSL (const std::string & filename);
  void saveStrengthLine (const std::string & filename);
  void exportPNG (const std::string & filename);
  void exportJPG (const std::string & filename);
  void setReadOnly(bool readOnly);
  bool getReadOnly();
  QImage* getOriginalImage() const;
  QImage* getResizedImage() const;
  void setModificationInProgress(bool mip);
  bool getModificationInProgress();
  int getNumberOfLines() const;
  
  void addSL(const StrengthLine *sl);
  void addRandomSL();

signals:
  void click();

};

#endif