/**
  * @RDE_HEADER@
  * AreaEffectSimulation - PixmapLabel
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Malte Schroeder, NLSE, 2018-05-09
  */

#include "aes_pixmap_label.h"

#include <LtsCoordTrans/lts_coord_trans.h>

namespace AreaEffectSimulation
{
PixmapLabel::PixmapLabel(QWidget *parent)
  : QLabel(parent)
  , m_pixmap()
{
  setMinimumSize(1, 1);
  setScaledContents(false);
}

int PixmapLabel::heightForWidth(int width) const
{
  return m_pixmap.isNull() ? this->height() : qRound(double(m_pixmap.height() * width)) / m_pixmap.width();
}

QSize PixmapLabel::sizeHint() const
{
  int w = this->width();
  return QSize(w, heightForWidth(w));
}

QPixmap PixmapLabel::scaledPixmap(const QSize &size, const Qt::AspectRatioMode &aspectRatioMode, const Qt::TransformationMode &transformationMode) const
{
  return m_pixmap.scaled(size, aspectRatioMode, transformationMode);
}

Qt::BrushStyle PixmapLabel::checkForBrushStyle(const AesEffectState &state)
{
  switch(state.underlying()) // Todo: change to correct BrushStyle?
  {
  case AesEffectState_def::EsUnknown:
    return Qt::BrushStyle::NoBrush;
  case AesEffectState_def::EsPrepared:
  case AesEffectState_def::EsFired:
    return Qt::BrushStyle::BDiagPattern;
  case AesEffectState_def::EsCreated:
  case AesEffectState_def::EsReceived:
    return Qt::BrushStyle::VerPattern;
  case AesEffectState_def::EsActivated:
    return Qt::BrushStyle::CrossPattern;
  case AesEffectState_def::EsRemoved:
    return Qt::BrushStyle::NoBrush;
  case AesEffectState_def::EsPaused:
  case AesEffectState_def::EsExpired:
  case AesEffectState_def::EsError:
    return Qt::BrushStyle::SolidPattern;
  }
  return Qt::BrushStyle::NoBrush;
}

void PixmapLabel::setPixmap(const QPixmap &pixmap)
{
  m_pixmap = pixmap;
  QLabel::setPixmap(scaledPixmap(this->size()));
}

void PixmapLabel::resizeEvent(QResizeEvent *e)
{
  QLabel::resizeEvent(e);

  if(m_pixmap.isNull())
    return;
  QLabel::setPixmap(scaledPixmap(this->size()));
}

QPolygonF PixmapLabel::geographic2Utm(const QPolygonF &poly)
{
  if(poly.isEmpty())
    return QPolygonF();

  QPolygonF polyOut;
  polyOut.reserve(poly.size());
  LtsCoordTrans::UtmCoordinate utmPos = LtsCoordTrans::UtmCoordinate::fromGeographic(poly.at(0));
  for(const QPointF &p : poly)
  {
    LtsCoordTrans::UtmCoordinate coord = LtsCoordTrans::UtmCoordinate::fromGeographic(p.x(), p.y(), utmPos.zone);
    polyOut.append(QPointF(coord.x, coord.y));
  }
  return polyOut;
}
}