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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 PM2DCONTROLPOINT_H
#define PM2DCONTROLPOINT_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "pmcontrolpoint.h"
#include <tqptrlist.h>
/**
* Class for free moveable control points
*/
class PM2DControlPoint : public PMControlPoint
{
public:
/**
* Type enum
*/
enum CPType { PM2DXY, PM2DYX, PM2DXZ, PM2DZX, PM2DYZ, PM2DZY };
/**
* Creates a PM2DControlPoint with id. Point has to be a 2D vector.
*/
PM2DControlPoint( const PMVector& point, CPType type,
int id, const TQString& description );
/**
* Deletes the PM2DControlPoint
*/
virtual ~PM2DControlPoint( ) { };
/** */
virtual PMVector position( ) const { return to3D( m_point ); }
/**
* Sets the 2d coordinates of the control point
*/
void setPoint( const PMVector& newPoint ) { m_point = newPoint; }
/**
* 2d coordinates of the control point
*/
PMVector point( ) const { return m_point; }
/** */
virtual void snapToGrid( );
/**
* Returns the third coordinate
*/
double thirdCoordinate( ) const { return m_thirdCoordinate; }
/**
* Sets the third coordinate
*/
void setThirdCoordinate( double d ) { m_thirdCoordinate = d; }
/**
* Returns the 2d scale
*/
double scale( ) const { return m_scale; }
/**
* Sets the scale
*/
void setScale( double s ) { m_scale = s; }
/**
* Sets the base point.
*
* If a base point is set, an extra line is shown between
* the base point and this control point.
*/
void setBasePoint( PM2DControlPoint* p );
/**
* Returns the base point
*/
PM2DControlPoint* basePoint( ) const { return m_pBasePoint; }
/**
* This method is used by the lathe object to link
* the control points in the xy and xz plane. These points are
* synchronized if both are selected.
*/
void setLatheLink( PM2DControlPoint* p ) { m_pLatheLink = p; }
/**
* Returns the linked control point for lathe points
*/
PM2DControlPoint* latheLink( ) const { return m_pLatheLink; }
/** */
virtual bool hasExtraLine( ) const { return m_pBasePoint; }
/** */
virtual PMVector extraLineStart( ) const { return position( ); }
/** */
virtual PMVector extraLineEnd( ) const
{
if( m_pBasePoint )
return m_pBasePoint->position( );
return PMVector( 0, 0, 0 );
}
protected:
/** */
virtual void graphicalChangeStarted( );
/** */
virtual void graphicalChange( const PMVector& startPoint,
const PMVector& viewNormal,
const PMVector& endPoint );
private:
PMVector to2D( const PMVector& v ) const;
PMVector to3D( const PMVector& v ) const;
void addLinkedPoint( PM2DControlPoint* p );
void removeLinkedPoint( PM2DControlPoint* p );
PMVector m_point, m_originalPoint, m_original2DPoint;
CPType m_type;
double m_thirdCoordinate;
double m_scale;
PM2DControlPoint* m_pBasePoint;
TQPtrList<PM2DControlPoint> m_linkedPoints;
PM2DControlPoint* m_pLatheLink;
};
#endif
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