vcomputeboundingbox.cpp

/* This file is part of the KDE project
   Copyright (C) 2006 Jan Hambrecht <jaham@gmx.net>
 
   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 "vcomputeboundingbox.h"
#include "vdocument.h"
#include "vlayer.h"
#include "vgroup.h"
#include "vcomposite.h"
#include "vtext.h"
#include "vimage.h"
 
VComputeBoundingBox::VComputeBoundingBox( bool omitHidden )
: m_omitHidden( omitHidden )
{
}
 
void
VComputeBoundingBox::visitVDocument( VDocument& document )
{
    VLayerListIterator itr( document.layers() );
 
    for( ; itr.current(); ++itr )
    {
        if( itr.current()->state() == VObject::deleted )
            continue;
        // do not use hidden layers
        if( m_omitHidden && ! isVisible( itr.current() ) )
            continue;
        itr.current()->accept( *this );
    }
}
 
void
VComputeBoundingBox::visitVLayer( VLayer& layer )
{
    VObjectListIterator itr( layer.objects() );
 
    for( ; itr.current(); ++itr )
    {
        if( itr.current()->state() == VObject::deleted )
            continue;
        // do not export hidden objects
        if( m_omitHidden && ! isVisible( itr.current() ) )
            continue;
        itr.current()->accept( *this );
    }
}
 
void
VComputeBoundingBox::visitVGroup( VGroup& group )
{
    VObjectListIterator itr( group.objects() );
 
    for( ; itr.current(); ++itr )
    {
        if( itr.current()->state() == VObject::deleted )
            continue;
        // do not use hidden child objects
        if( m_omitHidden && ! isVisible( itr.current() ) )
            continue;
        itr.current()->accept( *this );
    }
}
 
void
VComputeBoundingBox::visitVPath( VPath& composite )
{
    m_boundingBox |= composite.boundingBox();
}
 
void
VComputeBoundingBox::visitVText( VText& text )
{
    m_boundingBox |= text.boundingBox();
}
 
void
VComputeBoundingBox::visitVImage( VImage& img )
{
    m_boundingBox |= img.boundingBox();
}
 
bool
VComputeBoundingBox::isVisible( const VObject* object ) const
{
    return object->state() != VObject::hidden && object->state() != VObject::hidden_locked;
}
 
const KoRect&
VComputeBoundingBox::boundingRect() const
{
    return m_boundingBox;
}