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59 lines
1.9 KiB
59 lines
1.9 KiB
15 years ago
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/*
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**************************************************************************
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description
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--------------------
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copyright : (C) 2000-2001 by Andreas Zehender
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email : zehender@kde.org
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**************************************************************************
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**************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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**************************************************************************/
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#include "pmscalecontrolpoint.h"
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#include "pmmath.h"
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#include "pmdebug.h"
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#include <klocale.h>
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#include <math.h>
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const double precision = 0.001;
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PMScaleControlPoint::PMScaleControlPoint( const PMVector& scale, int id )
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: PMControlPoint( id, i18n( "Scale" ) )
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{
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m_scale = scale;
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}
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void PMScaleControlPoint::graphicalChangeStarted( )
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{
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m_originalScale = m_scale;
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}
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void PMScaleControlPoint::graphicalChange( const PMVector& startPoint,
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const PMVector& /*viewNormal*/,
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const PMVector& endPoint )
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{
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int i;
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for( i = 0; i < 3; i++ )
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if( !approxZero( startPoint[i] ) )
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m_scale[i] = rint( m_originalScale[i] * endPoint[i] / startPoint[i]
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/ precision ) * precision;
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}
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void PMScaleControlPoint::snapToGrid( )
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{
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int i;
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double d = scaleGrid( );
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if( !approxZero( d ) )
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for( i = 0; i < 3; i++ )
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m_scale[i] = rint( m_scale[i] / d ) * d;
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setChanged( );
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}
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