/**
  * @RDE_HEADER@
  * MVC view (QTreeView) - shows items (rows), events, date-time lines and more
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Mike Wille, SLSE, 2014-10-01
  */

#pragma once

#include "AbstractTimelineModel.h"
#include "TimelineIndicator.h"
#include "TimelineHeaderView.h"
#include "LineMap.h"
#include "Range.h"

#include <QTreeView>


namespace LtsTimelineClassic
{
/**
 * @brief MVC view (QTreeView) - shows items (rows), events, date-time lines and more
 */
class TimelineView : public QTreeView
{
  Q_OBJECT

public:
  /**
   * @brief creates a specialized QTreeView
   * @param parent parent of this widget
   */
  explicit TimelineView(QWidget *parent);

  EventGraphic *getEventOnPosition(QPoint position);

  /**
     * @brief sets the (Timeline-)Model by calling setModel of base class QTreeView with additional options
     * @param model new TimelineModel
     */
  void setTimelineModel(AbstractTimelineModel *model);

  /**
     * @brief returns the timeline model
     * @return timeline model
     */
  AbstractTimelineModel *timelineModel();

  /**
     * @brief refreshes the view data, which triggers all views to refresh also
     */
  void refreshData();

  /**
     * @brief setHeader overloaded, does more than the original
     * @param header header to set
     */
  void setHeader(QHeaderView *header);


  void setKnownRanges(const QVector<Range> &newRanges)
  {
    m_knownRanges = newRanges;
  }

  void setDrawCache(bool show)
  {
    m_drawCache = show;
  }


private:
  qint64 m_posMarkTime;
  AbstractTimelineModel *m_model;
  LineMap m_lineMap;
  QVector<Range> m_knownRanges;
  bool m_drawCache;


protected:
  bool event(QEvent *event) override;
  void mouseReleaseEvent(QMouseEvent *) override;
  void wheelEvent(QWheelEvent *event) override;


  /**
     * @brief checks whether it is possible to start an acecon on the clicked position
     * @param event event
     */
  //void mouseMoveEvent(QMouseEvent* event);

  /**
     * @brief draws lines to show where next date texts are
     * @param event event
     */
  virtual void paintEvent(QPaintEvent *event) override;


public slots:
  /**
     * @brief deletes line list (date text line lists)
     */
  void slotResetLineList();

  /**
     * @brief add date text line pixel position which should be added to a list,
     * so that the view can draw them on itself
     * @param posX pixel position of date text line
     */
  void slotAddLine(int posX, qint64 time);

  /**
     * @brief sets new position mark pixel position to the view (used by mouse click event)
     * @param posMarkPos pixel position of new position mark
     */
  //void slotSetPosMarkPos(int posMarkPos);

  /**
     * @brief sets new position mark time position to the view
     * @param posmarTime time position of new position mark
     */
  void slotSetPosMarkTime(qint64 posMarkTime);


signals:

  void signalEventAction(EventGraphic *eg, int); // int => action type
  void signalZoom();
  void signalUnzoom();

};

} // namespace LtsTimelineClassic