/**
 * Stone of Orthanc
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2018 Osimis S.A., Belgium
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * 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
 * Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 **/


#pragma once

#include "../Widgets/IWorldSceneMouseTracker.h"

#include "../Viewport/IStatusBar.h"
#include "../Toolbox/CoordinateSystem3D.h"

namespace OrthancStone
{
  class LineMeasureTracker : public IWorldSceneMouseTracker
  {
  private:
    IStatusBar*         statusBar_;
    CoordinateSystem3D  slice_;
    double              x1_;
    double              y1_;
    double              x2_;
    double              y2_;
    uint8_t             color_[3];
    unsigned int        fontSize_;

  public:
    LineMeasureTracker(IStatusBar* statusBar,
                       const CoordinateSystem3D& slice,
                       double x, 
                       double y,
                       uint8_t red,
                       uint8_t green,
                       uint8_t blue,
                       unsigned int fontSize);

    virtual bool HasRender() const
    {
      return true;
    }

    virtual void Render(CairoContext& context,
                        double zoom);
    
    double GetLength() const;  // In millimeters

    std::string FormatLength() const;

    virtual void MouseUp()
    {
      // Possibly create a new landmark "volume" with the line in subclasses
    }

    virtual void MouseMove(int displayX,
                           int displayY,
                           double x,
                           double y);
  };
}