/**
 * Stone of Orthanc
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 *
 * 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, either version 3 of the
 * License, or (at your option) any later version.
 *
 * In addition, as a special exception, the copyright holders of this
 * program give permission to link the code of its release with the
 * OpenSSL project's "OpenSSL" library (or with modified versions of it
 * that use the same license as the "OpenSSL" library), and distribute
 * the linked executables. You must obey the GNU General Public License
 * in all respects for all of the code used other than "OpenSSL". If you
 * modify file(s) with this exception, you may extend this exception to
 * your version of the file(s), but you are not obligated to do so. If
 * you do not wish to do so, delete this exception statement from your
 * version. If you delete this exception statement from all source files
 * in the program, then also delete it here.
 * 
 * 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, see <http://www.gnu.org/licenses/>.
 **/


#include "LineLayerRenderer.h"

namespace OrthancStone
{
  LineLayerRenderer::LineLayerRenderer(double x1,
                                       double y1,
                                       double x2,
                                       double y2) : 
    x1_(x1),
    y1_(y1),
    x2_(x2),
    y2_(y2)
  {
    RenderStyle style;
    SetLayerStyle(style);
  }


  bool LineLayerRenderer::RenderLayer(CairoContext& context,
                                      const ViewportGeometry& view)
  {
    if (visible_)
    {
      context.SetSourceColor(color_);

      cairo_t *cr = context.GetObject();
      cairo_set_line_width(cr, 1.0 / view.GetZoom());
      cairo_move_to(cr, x1_, y1_);
      cairo_line_to(cr, x2_, y2_);
      cairo_stroke(cr);
    }

    return true;
  }


  void LineLayerRenderer::SetLayerStyle(const RenderStyle& style)
  {
    visible_ = style.visible_;
    color_[0] = style.drawColor_[0];
    color_[1] = style.drawColor_[1];
    color_[2] = style.drawColor_[2];
  }
}