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trackpanelmarkerfunction.h

/***************************************************************************
                          trackpanelmarkerfunction  -  description
                             -------------------
    begin                : Thu Nov 27 2003
    copyright            : (C) 2003 by Jason Wood
    email                : jasonwood@blueyonder.co.uk
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
#ifndef TRACKPANELMARKERFUNCTION_H
#define TRACKPANELMARKERFUNCTION_H


#include "trackpanelfunction.h"

class QMouseEvent;

class KdenliveDoc;
class DocTrackBase;

namespace Gui {
    class KdenliveApp;
    class KTimeLine;
}
/**
@author Jason Wood
00034 */ class TrackPanelMarkerFunction:public TrackPanelFunction
{
  Q_OBJECT public:
    TrackPanelMarkerFunction(Gui::KdenliveApp * app,
      Gui::KTimeLine * timeline, KdenliveDoc * document);

    virtual ~TrackPanelMarkerFunction();

      /**
      Returns true if the specified position should cause this function to activate,
      otherwise returns false.
      */
    virtual bool mouseApplies(Gui::KTrackPanel * panel,
      QMouseEvent * event) const;

      /**
      Returns a relevant mouse cursor for the given mouse position
      */
    virtual QCursor getMouseCursor(Gui::KTrackPanel * panel,
      QMouseEvent * event);

      /**
      A mouse button has been pressed. Returns true if we want to handle this event
      */
    virtual bool mousePressed(Gui::KTrackPanel * panel,
      QMouseEvent * event);

      /** Processes Mouse double click.*/
    virtual bool mouseDoubleClicked(Gui::KTrackPanel * panel, QMouseEvent * event);

      /**
      Mouse Release Events in the track view area. Returns true if we have finished
      an operation now.
      */
    virtual bool mouseReleased(Gui::KTrackPanel * panel,
      QMouseEvent * event);

      /**
      Processes Mouse Move events in the track view area. Returns true if we are
      continuing with the drag.*/
    virtual bool mouseMoved(Gui::KTrackPanel * panel, QMouseEvent * event);

  private:
     Gui::KdenliveApp * m_app;
     Gui::KTimeLine * m_timeline;
    KdenliveDoc *m_document;
  signals:
    void lookingAtClip(DocClipRef *, const GenTime &);
};

#endif

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