karbon

vcomputeboundingbox.cc

00001 /* This file is part of the KDE project
00002    Copyright (C) 2006 Jan Hambrecht <jaham@gmx.net>
00003 
00004    This library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Library General Public
00006    License as published by the Free Software Foundation; either
00007    version 2 of the License, or (at your option) any later version.
00008 
00009    This library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Library General Public License for more details.
00013 
00014    You should have received a copy of the GNU Library General Public License
00015    along with this library; see the file COPYING.LIB.  If not, write to
00016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  * Boston, MA 02110-1301, USA.
00018 */
00019 
00020 
00021 #include "vcomputeboundingbox.h"
00022 #include "vdocument.h"
00023 #include "vlayer.h"
00024 #include "vgroup.h"
00025 #include "vcomposite.h"
00026 #include "vtext.h"
00027 #include "vimage.h"
00028 
00029 VComputeBoundingBox::VComputeBoundingBox( bool omitHidden )
00030 : m_omitHidden( omitHidden )
00031 {
00032 }
00033 
00034 void
00035 VComputeBoundingBox::visitVDocument( VDocument& document )
00036 {
00037     VLayerListIterator itr( document.layers() );
00038 
00039     for( ; itr.current(); ++itr )
00040     {
00041         if( itr.current()->state() == VObject::deleted )
00042             continue;
00043         // do not use hidden layers
00044         if( m_omitHidden && ! isVisible( itr.current() ) )
00045             continue;
00046         itr.current()->accept( *this );
00047     }
00048 }
00049 
00050 void
00051 VComputeBoundingBox::visitVLayer( VLayer& layer )
00052 {
00053     VObjectListIterator itr( layer.objects() );
00054 
00055     for( ; itr.current(); ++itr )
00056     {
00057         if( itr.current()->state() == VObject::deleted )
00058             continue;
00059         // do not export hidden objects
00060         if( m_omitHidden && ! isVisible( itr.current() ) )
00061             continue;
00062         itr.current()->accept( *this );
00063     }
00064 }
00065 
00066 void
00067 VComputeBoundingBox::visitVGroup( VGroup& group )
00068 {
00069     VObjectListIterator itr( group.objects() );
00070 
00071     for( ; itr.current(); ++itr )
00072     {
00073         if( itr.current()->state() == VObject::deleted )
00074             continue;
00075         // do not use hidden child objects
00076         if( m_omitHidden && ! isVisible( itr.current() ) )
00077             continue;
00078         itr.current()->accept( *this );
00079     }
00080 }
00081 
00082 void
00083 VComputeBoundingBox::visitVPath( VPath& composite )
00084 {
00085     m_boundingBox |= composite.boundingBox();
00086 }
00087 
00088 void
00089 VComputeBoundingBox::visitVText( VText& text )
00090 {
00091     m_boundingBox |= text.boundingBox();
00092 }
00093 
00094 void
00095 VComputeBoundingBox::visitVImage( VImage& img )
00096 {
00097     m_boundingBox |= img.boundingBox();
00098 }
00099 
00100 bool
00101 VComputeBoundingBox::isVisible( const VObject* object ) const
00102 {
00103     return object->state() != VObject::hidden && object->state() != VObject::hidden_locked;
00104 }
00105 
00106 const KoRect&
00107 VComputeBoundingBox::boundingRect() const
00108 {
00109     return m_boundingBox;
00110 }
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