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diff --git a/svx/source/svdraw/svditer.cxx b/svx/source/svdraw/svditer.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <svx/svditer.hxx>
+#include <svx/svdpage.hxx>
+#include <svx/svdobj.hxx>
+#include <svx/svdmark.hxx>
+#include <osl/diagnose.h>
+
+SdrObjListIter::SdrObjListIter(const SdrObjList* pObjList, SdrIterMode eMode, bool bReverse)
+: mnIndex(0),
+ mbReverse(bReverse),
+ mbUseZOrder(true)
+{
+ if(nullptr != pObjList)
+ {
+ ImpProcessObjectList(*pObjList, eMode);
+ }
+
+ Reset();
+}
+
+SdrObjListIter::SdrObjListIter(const SdrObjList* pObjList, bool bUseZOrder, SdrIterMode eMode, bool bReverse)
+: mnIndex(0),
+ mbReverse(bReverse),
+ mbUseZOrder(bUseZOrder)
+{
+ if(nullptr != pObjList)
+ {
+ // correct when we have no ObjectNavigationOrder
+ if(!mbUseZOrder && !pObjList->HasObjectNavigationOrder())
+ {
+ mbUseZOrder = false;
+ }
+
+ ImpProcessObjectList(*pObjList, eMode);
+ }
+
+ Reset();
+}
+
+SdrObjListIter::SdrObjListIter(const SdrObject& rSdrObject, SdrIterMode eMode, bool bReverse)
+: mnIndex(0),
+ mbReverse(bReverse),
+ mbUseZOrder(true)
+{
+ ImpProcessObj(rSdrObject, eMode);
+ Reset();
+}
+
+SdrObjListIter::SdrObjListIter(const SdrPage* pSdrPage, SdrIterMode eMode, bool bReverse)
+: mnIndex(0),
+ mbReverse(bReverse),
+ mbUseZOrder(true)
+{
+ if (pSdrPage)
+ ImpProcessObjectList(*pSdrPage, eMode);
+ Reset();
+}
+
+SdrObjListIter::SdrObjListIter( const SdrMarkList& rMarkList, SdrIterMode eMode )
+: mnIndex(0),
+ mbReverse(false),
+ mbUseZOrder(true)
+{
+ ImpProcessMarkList(rMarkList, eMode);
+ Reset();
+}
+
+void SdrObjListIter::ImpProcessObjectList(const SdrObjList& rObjList, SdrIterMode eMode)
+{
+ for(size_t nIdx(0), nCount(rObjList.GetObjCount()); nIdx < nCount; ++nIdx)
+ {
+ const SdrObject* pSdrObject(mbUseZOrder
+ ? rObjList.GetObj(nIdx)
+ : rObjList.GetObjectForNavigationPosition(nIdx));
+
+ if(nullptr == pSdrObject)
+ {
+ OSL_ENSURE(false, "SdrObjListIter: corrupted SdrObjList (!)");
+ }
+ else
+ {
+ ImpProcessObj(*pSdrObject, eMode);
+ }
+ }
+}
+
+void SdrObjListIter::ImpProcessMarkList(const SdrMarkList& rMarkList, SdrIterMode eMode)
+{
+ for( size_t nIdx = 0, nCount = rMarkList.GetMarkCount(); nIdx < nCount; ++nIdx )
+ {
+ if( SdrObject* pObj = rMarkList.GetMark( nIdx )->GetMarkedSdrObj() )
+ {
+ ImpProcessObj(*pObj, eMode);
+ }
+ }
+}
+
+void SdrObjListIter::ImpProcessObj(const SdrObject& rSdrObject, SdrIterMode eMode)
+{
+ // TTTT: Note: The behaviour has changed here, it will now deep-iterate
+ // for SdrObjGroup and E3dScene. Old version only deep-dived for SdrObjGroup,
+ // E3dScene was just added flat. This is now more correct, but potentially
+ // there will exist code in the 3D area that *self-iterates* with local
+ // functions/methods due to this iterator was not doing the expected thing.
+ // These will be difficult to find, but in most cases should do no harm,
+ // but cost runtime. Will need to have an eye on this aspect on continued
+ // changes...
+ const SdrObjList* pChildren(rSdrObject.getChildrenOfSdrObject());
+ const bool bIsGroup(nullptr != pChildren);
+
+ if(!bIsGroup || (SdrIterMode::DeepNoGroups != eMode))
+ {
+ maObjList.push_back(&rSdrObject);
+ }
+
+ if(bIsGroup && (SdrIterMode::Flat != eMode))
+ {
+ ImpProcessObjectList(*pChildren, eMode);
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */