1 files changed, 197 insertions, 0 deletions
diff --git a/kpovmodeler/pmobjectlink.cpp b/kpovmodeler/pmobjectlink.cpp
new file mode 100644
index 00000000..6596471d
--- /dev/null
+++ b/kpovmodeler/pmobjectlink.cpp
@@ -0,0 +1,197 @@
+/*
+**************************************************************************
+                                 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( )
+{
+}
+
+QString PMObjectLink::description( ) const
+{
+   return i18n( "object link" );
+}
+
+PMMetaObject* PMObjectLink::metaObject( ) const
+{
+   if( !s_pMetaObject )
+   {
+      s_pMetaObject = new PMMetaObject( "ObjectLink", Base::metaObject( ),
+                                        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( QDomElement& e, QDomDocument& doc ) const
+{
+   if( m_pLinkedObject )
+      e.setAttribute( "prototype", m_pLinkedObject->id( ) );
+   Base::serialize( e, doc );
+}
+
+void PMObjectLink::readAttributes( const PMXMLHelper& h )
+{
+   QString 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." )
+                                     .arg( id ) );
+      }
+   }
+   Base::readAttributes( h );
+}
+
+PMDialogEditBase* PMObjectLink::editWidget( QWidget* 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 );
+}