CPointerOverlay.hpp

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// INDENTING (emacs/vi): -*- mode:c++; tab-width:2; c-basic-offset:2; intent-tabs-mode:nil; -*- ex: set tabstop=2 expandtab:
 
/*
 * Qt Virtual Chart Table (QVCT)
 * Copyright (C) 2012 Cedric Dufour <http://cedric.dufour.name>
 * Author: Cedric Dufour <http://cedric.dufour.name>
 *
 * The Qt Virtual Chart Table (QVCT) 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, Version 3.
 *
 * The Qt Virtual Chart Table (QVCT) 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.
 */
 
#ifndef QVCT_CPOINTEROVERLAY_HPP
#define QVCT_CPOINTEROVERLAY_HPP
 
// QT
#include <QPainter>
#include <QPointF>
#include <QWidget>
 
// QVCT
#include "overlays/COverlayBase.hpp"
class CChart;
class CDataPosition;
class CPointerContainer;
class CPointerPoint;
 
 
 
class CPointerOverlay: public COverlayBase
{
 
 
  //------------------------------------------------------------------------------
  // CONSTRUCTORS / DESTRUCTOR
  //------------------------------------------------------------------------------
 
public:
  CPointerOverlay();
  virtual ~CPointerOverlay();
 
 
  //------------------------------------------------------------------------------
  // METHODS: COverlay (implement/override)
  //------------------------------------------------------------------------------
 
public:
  virtual void drawContent( const CChart* _poChart, QPainter* _pqPainter ) const;
  virtual void showDetail( const QTreeWidgetItem* _pqTreeWidgetItem ) const;
  virtual void setPosition( const QTreeWidgetItem* _pqTreeWidgetItem ) const;
  virtual COverlayPoint* matchScrPosition( const CChart* _poChart, const QPointF& _rqPointFScrPosition ) const { return 0; };
 
 
  //------------------------------------------------------------------------------
  // METHODS
  //------------------------------------------------------------------------------
 
  // GETTERS
public:
  bool hasPath() const;
  int getPathSegments() const;
 
  // USERS
public:
  CPointerPoint* usePointerPoint();
  CPointerPoint* usePointerTarget();
 
  // OTHER
public:
  void importSettings();
  void setPosition( const CChart* _poChart, const QPointF& _rqPointFScrPosition, bool _bTarget = false );
  void setPosition( const CDataPosition& _roDataPosition, bool _bTarget = false );
  void clearPosition( bool _bTarget = false );
  void setPath( const CChart* _poChart, const QPointF& _rqPointFScrPosition );
  void setPath( const CDataPosition& _roDataPosition );
  double getPathLengthRL();
  double getPathLengthGC();
  void clearPath();
 
};
 
#endif // QVCT_CPOINTEROVERLAY_HPP