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/*
**************************************************************************
description
--------------------
copyright : (C) 2000-2001 by Andreas Zehender
email : zehender@kde.org
**************************************************************************
**************************************************************************
* *
* 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 PMDISTANCECONTROLPOINT_H
#define PMDISTANCECONTROLPOINT_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "pmcontrolpoint.h"
/**
* Class for distance control points
*/
class PMDistanceControlPoint : public PMControlPoint
{
public:
/**
* Creates a PMDistanceControlPoint with id.
*
* The base point of the vector is given by the control point location.
*/
PMDistanceControlPoint( PMControlPoint* location, const PMVector& direction,
double distance, int id, const TQString& description,
bool extraLine = false );
/**
* Creates a PMDistanceControlPoint with id.
*
* The base point of the vector is given by the vector p.
*/
PMDistanceControlPoint( const PMVector& location, const PMVector& direction,
double distance, int id, const TQString& description,
bool extraLine = false );
/**
* Deletes the PMDistanceControlPoint
*/
virtual ~PMDistanceControlPoint( ) { };
/** */
virtual PMVector position( ) const;
/**
* Sets the distance
*/
void setDistance( double distance ) { m_distance = distance; }
/**
* returns the distance
*/
double distance( ) const { return m_distance; }
/**
* Sets the direction
*/
void setDirection( const PMVector& d );
/**
* Returns the direction
*/
PMVector direction( ) const { return m_direction; }
/**
* Returns the base point
*/
PMVector basePoint( ) const;
/** */
virtual bool hasExtraLine( ) const { return m_extraLine; }
/**
* Returns the start point of the extra line
*/
virtual PMVector extraLineStart( ) const { return basePoint( ); }
/**
* Returns the end point of the extra line
*/
virtual PMVector extraLineEnd( ) const { return position( ); }
/** */
virtual void snapToGrid( );
protected:
/** */
virtual void graphicalChangeStarted( );
/** */
virtual void graphicalChange( const PMVector& startPoint,
const PMVector& viewNormal,
const PMVector& endPoint );
private:
double m_distance, m_originalDistance;
PMControlPoint* m_pBasePoint;
PMVector m_constBasePoint;
PMVector m_direction;
double m_directionLength;
bool m_extraLine;
};
#endif
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