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tdegraphics/kpovmodeler/pmobjectlink.cpp

198 lines
5.2 KiB

/*
**************************************************************************
description
--------------------
copyright : (C) 2000-2002 by Andreas Zehender
email : zehender@kde.org
**************************************************************************
**************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
**************************************************************************/
#include "pmobjectlink.h"
#include "pmdeclare.h"
#include "pmpart.h"
#include "pmsymboltable.h"
#include "pmobjectlinkedit.h"
#include "pmparser.h"
#include "pmmemento.h"
#include "pmxmlhelper.h"
#include <klocale.h>
PMDefinePropertyClass( PMObjectLink, PMObjectLinkProperty );
PMMetaObject* PMObjectLink::s_pMetaObject = 0;
PMObject* createNewObjectLink( PMPart* part )
{
return new PMObjectLink( part );
}
PMObjectLink::PMObjectLink( PMPart* part )
: Base( part )
{
m_pLinkedObject = 0;
}
PMObjectLink::PMObjectLink( const PMObjectLink& o )
: Base( o )
{
m_pLinkedObject = 0;
setLinkedObject( o.m_pLinkedObject );
}
PMObjectLink::~PMObjectLink( )
{
}
TQString PMObjectLink::description( ) const
{
return i18n( "object link" );
}
PMMetaObject* PMObjectLink::tqmetaObject( ) const
{
if( !s_pMetaObject )
{
s_pMetaObject = new PMMetaObject( "ObjectLink", Base::tqmetaObject( ),
createNewObjectLink );
s_pMetaObject->addProperty(
new PMObjectLinkProperty( "linkedObject", &PMObjectLink::setLinkedObjectProperty,
&PMObjectLink::linkedObjectProperty ) );
}
return s_pMetaObject;
}
void PMObjectLink::cleanUp( ) const
{
if( s_pMetaObject )
{
delete s_pMetaObject;
s_pMetaObject = 0;
}
Base::cleanUp( );
}
bool PMObjectLink::setLinkedObject( PMDeclare* obj )
{
if( obj )
{
if( obj->declareType( ) == "GraphicalObject" ||
obj->declareType( ) == "Light" )
{
if( m_pLinkedObject != obj )
{
if( m_pMemento )
{
m_pMemento->addData( s_pMetaObject, PMLinkedObjectID,
m_pLinkedObject );
m_pMemento->setViewStructureChanged( );
}
if( m_pLinkedObject )
{
m_pLinkedObject->removeLinkedObject( this );
if( m_pMemento )
m_pMemento->addChangedObject( m_pLinkedObject, PMCData );
}
m_pLinkedObject = obj;
m_pLinkedObject->addLinkedObject( this );
if( m_pMemento )
m_pMemento->addChangedObject( m_pLinkedObject, PMCData );
}
return true;
}
else
return false;
}
else
{
if( m_pLinkedObject != 0 )
{
if( m_pMemento )
{
m_pMemento->addData( s_pMetaObject, PMLinkedObjectID,
m_pLinkedObject );
m_pMemento->addChangedObject( m_pLinkedObject, PMCData );
}
m_pLinkedObject->removeLinkedObject( this );
m_pLinkedObject = 0;
}
return true;
}
return false;
}
void PMObjectLink::setLinkedObjectProperty( PMObject* o )
{
if( o == 0 )
setLinkedObject( 0 );
else if( o->isA( "Declare" ) )
setLinkedObject( ( PMDeclare* ) o );
}
void PMObjectLink::serialize( TQDomElement& e, TQDomDocument& doc ) const
{
if( m_pLinkedObject )
e.setAttribute( "prototype", m_pLinkedObject->id( ) );
Base::serialize( e, doc );
}
void PMObjectLink::readAttributes( const PMXMLHelper& h )
{
TQString id = h.stringAttribute( "prototype", "" );
if( !id.isEmpty( ) )
{
PMDeclare* link = h.parser( )->checkLink( id );
if( link )
{
if( link->type( ) == "Declare" )
{
m_pLinkedObject = ( PMDeclare* ) link;
m_pLinkedObject->addLinkedObject( this );
}
else
h.parser( )->printError( i18n( "Declare \"%1\" has wrong type." )
.tqarg( id ) );
}
}
Base::readAttributes( h );
}
PMDialogEditBase* PMObjectLink::editWidget( TQWidget* parent ) const
{
return new PMObjectLinkEdit( parent );
}
void PMObjectLink::restoreMemento( PMMemento* s )
{
PMMementoDataIterator it( s );
PMMementoData* data;
for( ; it.current( ); ++it )
{
data = it.current( );
if( data->objectType( ) == s_pMetaObject )
{
switch( data->valueID( ) )
{
case PMLinkedObjectID:
setLinkedObject( ( PMDeclare* ) data->objectData( ) );
break;
default:
kdError( PMArea ) << "Wrong ID in PMObjectLink::restoreMemento\n";
break;
}
}
}
Base::restoreMemento( s );
}