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koffice/karbon/visitors/vtransformnodes.cc

77 lines
2.4 KiB

/* This file is part of the KDE project
Copyright (C) 2002, The Karbon Developers
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "vpath.h"
#include "vsegment.h"
#include "vtransformnodes.h"
VTransformNodes::VTransformNodes( const TQWMatrix& m )
: m_matrix( m )
{
}
void
VTransformNodes::visitVSubpath( VSubpath& path )
{
path.first();
while( path.current() )
{
if( path.current()->isCurve() )
{
if( !path.current()->knotIsSelected() &&
path.current()->pointIsSelected( 1 ) &&
path.current()->next() &&
path.current()->next()->isCurve() &&
!path.current()->next()->pointIsSelected( 0 ) &&
path.current()->isSmooth() )
{
// Do extra reverse trafo for smooth beziers
TQWMatrix m2( m_matrix.m11(), m_matrix.m12(), m_matrix.m21(), m_matrix.m22(),
-m_matrix.dx(), -m_matrix.dy() );
path.current()->next()->setPoint( 0, path.current()->next()->point( 0 ).transform( m2 ) );
}
if( path.current()->pointIsSelected( 0 ) &&
path.current()->prev() &&
path.current()->prev()->isCurve() &&
!path.current()->prev()->knotIsSelected() &&
!path.current()->prev()->pointIsSelected( 1 ) &&
path.current()->prev()->isSmooth() )
{
// Do extra reverse trafo for smooth beziers
TQWMatrix m2( m_matrix.m11(), m_matrix.m12(), m_matrix.m21(), m_matrix.m22(),
-m_matrix.dx(), -m_matrix.dy() );
path.current()->prev()->setPoint( 1, path.current()->prev()->point( 1 ).transform( m2 ) );
}
}
for( uint i = 0; i < path.current()->degree(); ++i )
{
if( path.current()->pointIsSelected( i ) )
path.current()->setPoint( i, path.current()->point( i ).transform( m_matrix ) );
}
if( !success() )
setSuccess();
path.next();
}
}