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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. *
* *
**************************************************************************/
#include "pm2dcontrolpoint.h"
#include "pmmath.h"
#include <math.h>
PM2DControlPoint::PM2DControlPoint( const PMVector& point,
PM2DControlPoint::CPType type, int id,
const TQString& description )
: PMControlPoint( id, description )
{
m_point = point;
m_type = type;
m_thirdCoordinate = 0;
m_scale = 1.0;
m_pBasePoint = 0;
m_pLatheLink = 0;
}
void PM2DControlPoint::graphicalChangeStarted( )
{
TQPtrListIterator<PM2DControlPoint> it( m_linkedPoints );
for( ; *it; ++it )
if( !( *it )->selected( ) )
( *it )->graphicalChangeStarted( );
m_original2DPoint = m_point;
m_originalPoint = to3D( m_point );
}
void PM2DControlPoint::graphicalChange( const PMVector& startPoint,
const PMVector& /*viewNormal*/,
const PMVector& endPoint )
{
if( m_pBasePoint && m_pBasePoint->selected( ) )
return;
m_point = to2D( m_originalPoint + endPoint - startPoint );
if( m_pLatheLink && m_pLatheLink->selected( ) )
{
PM2DControlPoint* ll = m_pLatheLink;
PMVector op = ll->to2D( ll->m_originalPoint + endPoint - startPoint );
m_point = to2D( m_originalPoint + endPoint - startPoint );
if( ( m_point - m_original2DPoint ).abs( ) <
( op - ll->m_original2DPoint ).abs( ) )
m_point = op;
}
TQPtrListIterator<PM2DControlPoint> it( m_linkedPoints );
for( ; *it; ++it )
{
( *it )->m_point = m_point + ( *it )->m_original2DPoint
- m_original2DPoint;
( *it )->setChanged( );
}
}
void PM2DControlPoint::setBasePoint( PM2DControlPoint* p )
{
if( p != m_pBasePoint )
{
if( m_pBasePoint )
m_pBasePoint->removeLinkedPoint( this );
m_pBasePoint = p;
if( m_pBasePoint )
m_pBasePoint->addLinkedPoint( this );
}
}
void PM2DControlPoint::snapToGrid( )
{
int i;
double d = moveGrid( );
bool diff = false;
PMVector change( 2 );
if( m_pBasePoint && m_pBasePoint->selected( ) )
{
m_point -= m_pBasePoint->m_point;
diff = true;
}
if( !approxZero( d ) )
{
for( i = 0; i < 2; i++ )
{
change[i] = -m_point[i];
m_point[i] = rint( m_point[i] / d ) * d;
change[i] += m_point[i];
}
}
if( diff )
m_point += m_pBasePoint->m_point;
TQPtrListIterator<PM2DControlPoint> it( m_linkedPoints );
for( ; *it; ++it )
{
( *it )->m_point += change;
( *it )->setChanged( );
}
setChanged( );
}
PMVector PM2DControlPoint::to2D( const PMVector& v ) const
{
PMVector result( 2 );
switch( m_type )
{
case PM2DXY:
result[0] = v[0];
result[1] = v[1];
break;
case PM2DXZ:
result[0] = v[0];
result[1] = v[2];
break;
case PM2DYZ:
result[0] = v[1];
result[1] = v[2];
break;
case PM2DYX:
result[0] = v[1];
result[1] = v[0];
break;
case PM2DZX:
result[0] = v[2];
result[1] = v[0];
break;
case PM2DZY:
result[0] = v[2];
result[1] = v[1];
break;
}
if( !approxZero( m_scale ) )
result /= m_scale;
return result;
}
PMVector PM2DControlPoint::to3D( const PMVector& v ) const
{
PMVector vec( v * m_scale );
PMVector result( 3 );
switch( m_type )
{
case PM2DXY:
result[0] = vec[0];
result[1] = vec[1];
result[2] = m_thirdCoordinate;
break;
case PM2DXZ:
result[0] = vec[0];
result[1] = m_thirdCoordinate;
result[2] = vec[1];
break;
case PM2DYZ:
result[0] = m_thirdCoordinate;
result[1] = vec[0];
result[2] = vec[1];
break;
case PM2DYX:
result[1] = vec[0];
result[0] = vec[1];
result[2] = m_thirdCoordinate;
break;
case PM2DZX:
result[2] = vec[0];
result[0] = vec[1];
result[1] = m_thirdCoordinate;
break;
case PM2DZY:
result[2] = vec[0];
result[1] = vec[1];
result[0] = m_thirdCoordinate;
break;
}
return result;
}
void PM2DControlPoint::addLinkedPoint( PM2DControlPoint* p )
{
if( !m_linkedPoints.tqcontainsRef( p ) )
m_linkedPoints.append( p );
}
void PM2DControlPoint::removeLinkedPoint( PM2DControlPoint* p )
{
m_linkedPoints.removeRef( p );
}
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