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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 "pmscalecontrolpoint.h"
#include "pmmath.h"
#include "pmdebug.h"
#include <klocale.h>
#include <math.h>
const double precision = 0.001;
PMScaleControlPoint::PMScaleControlPoint( const PMVector& scale, int id )
: PMControlPoint( id, i18n( "Scale" ) )
{
m_scale = scale;
}
void PMScaleControlPoint::graphicalChangeStarted( )
{
m_originalScale = m_scale;
}
void PMScaleControlPoint::graphicalChange( const PMVector& startPoint,
const PMVector& /*viewNormal*/,
const PMVector& endPoint )
{
int i;
for( i = 0; i < 3; i++ )
if( !approxZero( startPoint[i] ) )
m_scale[i] = rint( m_originalScale[i] * endPoint[i] / startPoint[i]
/ precision ) * precision;
}
void PMScaleControlPoint::snapToGrid( )
{
int i;
double d = scaleGrid( );
if( !approxZero( d ) )
for( i = 0; i < 3; i++ )
m_scale[i] = rint( m_scale[i] / d ) * d;
setChanged( );
}
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