/**
* @RDE_HEADER@
* Widget that visualizes the topography of a bunch of points along a rubberband
* $Id$
* $HeadURL$
* $Author$
* Created by Malte Schroeder, NLSE, 2018-03-07
*/

#pragma once

#include <QWidget>
#include <QtCore/QVector>
#include <QtCore/QPointF>
#include <QtCore/QPair>

#include "lts_widgets_export.h"

class LTSWIDGETS_EXPORT LtsHeightPlotWidget final : public QWidget
{
  Q_OBJECT
public:
  explicit LtsHeightPlotWidget(QWidget *parent = nullptr);
  virtual ~LtsHeightPlotWidget();

  void clearView();

  /**
    * Set the data in the form
    * QPoint - x/y values
    * double - height values
    * @param data the height data to display
    */
  void setData(const QVector<QPair<QPointF, double> > &data);
  /**
    * Set the markers to show
    * QPoint - x/y values
    * @param data the markers to display
    */
  void setMarks(const QVector<QPointF> &data);

  /**
    * Set the background of the widget
    */
  void setBackgroundBrush(const QBrush &brush);
  /**
    * Set the font for the axis labels
    */
  void setTextFont(const QFont &f);
  /**
    * Set the pen used for the axis lines
    */
  void setAxisPen(const QPen &pen);
  /**
    * Set the pen for the position marker
    */
  void setPositionPen(const QPen &pen);
  /**
    * Set the pen for the viewline
    */
  void setViewLinePen(const QPen &pen);
  /**
    * Set the brush for the contour (+ fill)
    */
  void setContourBrush(const QBrush &brush);
  /**
    * Set the pen for the markers
    */
  void setMarkerPen(const QPen &pen);

Q_SIGNALS:
  /**
    * The current mouse position has changed.
    * @param curPoint the current point (in map coordinates) of the mouse
    * @param curHeight the current height at the given point
    * @param mouseHeight the current height at the current mouse point (>= curHeight)
    */
  void mousePositionChanged(const QPointF &curPoint, double curHeight, double mouseHeight);
  /**
    * A line of sight has started. This signal can emitted more than once
    * wich means that the old line of sight was stopped
    * @param startPoint the startpoint (in map coordinates) of the line
    */
  void startLineOfSight(const QPointF &startPoint);
  /**
    * A line of sight has stopped
    */
  void stopLineOfSight();
protected:
  void resizeEvent(QResizeEvent *e) override;
  void paintEvent(QPaintEvent *e) override;
  void mouseMoveEvent(QMouseEvent *e) override;
  void mouseReleaseEvent(QMouseEvent *e) override;

  class Private;
  Private *const d;
};