vlayer.cpp

/* This file is part of the KDE project
   Copyright (C) 2001, 2002, 2003 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 <tqdom.h>
 
#include <tdelocale.h>
#include <KoRect.h>
 
#include "vcomposite.h"
#include "vdocument.h"
#include "vgroup.h"
#include "vlayer.h"
#include "vobject.h"
#include "vtext.h"
#include "vvisitor.h"
#include "vlayer_iface.h"
#include <kdebug.h>
#include "vclipgroup.h"
#include "vfill.h"
#include "vstroke.h"
 
VLayer::VLayer( VObject* parent, VState state )
    : VGroup( parent, state )
{
    setName( "Layer" );
    // HACK : vlayer just shouldn't have fill/stroke at all
    delete m_fill;
    m_fill = 0L;
    delete m_stroke;
    m_stroke = 0L;
}
 
VLayer::VLayer( const VLayer& layer )
    : VGroup( layer )
{
}
 
VLayer::~VLayer()
{
}
 
DCOPObject* VLayer::dcopObject()
{
    if ( !m_dcop )
        m_dcop = new VLayerIface( this );
 
    return m_dcop;
}
 
void
VLayer::draw( VPainter* painter, const KoRect* rect ) const
{
    if(
        state() == deleted ||
        state() == hidden ||
        state() == hidden_locked )
    {
        return;
    }
 
    VObjectListIterator itr = m_objects;
 
    for ( ; itr.current(); ++itr )
        itr.current()->draw( painter, rect );
}
 
void
VLayer::bringToFront( const VObject& object )
{
    if( m_objects.getLast() == &object ) return;
 
    m_objects.remove( &object );
 
    m_objects.append( &object );
}
 
void
VLayer::upwards( const VObject& object )
{
    if( m_objects.getLast() == &object ) return;
 
    m_objects.remove( &object );
 
    if( m_objects.current() != m_objects.getLast() )
    {
        m_objects.next();
        m_objects.insert( m_objects.at(), &object );
    }
    else
        m_objects.append( &object );
}
 
void
VLayer::downwards( const VObject& object )
{
    if( m_objects.getFirst() == &object ) return;
 
    int index = m_objects.find( &object );
    bool bLast = m_objects.getLast() == &object;
    m_objects.remove( index );
 
    if( !bLast ) m_objects.prev();
 
    m_objects.insert( m_objects.at(), &object );
}
 
void
VLayer::sendToBack( const VObject& object )
{
    if( m_objects.getFirst() == &object ) return;
 
    m_objects.remove( &object );
 
    m_objects.prepend( &object );
}
 
void
VLayer::save( TQDomElement& element ) const
{
    if( state() != deleted )
    {
        TQDomElement me = element.ownerDocument().createElement( "LAYER" );
        element.appendChild( me );
 
        if( state() == normal || state() == normal_locked || state() == VObject::selected )
            me.setAttribute( "visible", 1 );
 
        // save objects:
        VObjectListIterator itr = m_objects;
        for ( ; itr.current(); ++itr )
            itr.current()->save( me );
 
        VObject::save( me );
    }
}
 
void
VLayer::saveOasis( KoStore *store, KoXmlWriter *docWriter, KoGenStyles &mainStyles, int &index ) const
{
    // do not save deleted objects
    if( state() == deleted )
        return;
 
    // save objects:
    VObjectListIterator itr = m_objects;
 
    for ( ; itr.current(); ++itr )
        itr.current()->saveOasis( store, docWriter, mainStyles, ++index );
}
 
void
VLayer::load( const TQDomElement& element )
{
    setState( element.attribute( "visible" ) == 0 ? hidden : normal );
    VGroup::load( element );
}
 
 
VLayer*
VLayer::clone() const
{
    return new VLayer( *this );
}
 
void
VLayer::accept( VVisitor& visitor )
{
    visitor.visitVLayer( *this );
}