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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 .
*/
#ifndef INCLUDED_COMPHELPER_CONTAINER_HXX
#define INCLUDED_COMPHELPER_CONTAINER_HXX
#include <vector>
#include <com/sun/star/uno/Reference.hxx>
#include <comphelper/comphelperdllapi.h>
namespace comphelper
{
//= IndexAccessIterator
/** an iterator that iterates through all elements, starting from an XIndexAccess (pre-order)
*/
class COMPHELPER_DLLPUBLIC IndexAccessIterator
{
protected:
css::uno::Reference< css::uno::XInterface> m_xStartingPoint;
css::uno::Reference< css::uno::XInterface> m_xCurrentObject;
// The current object
::std::vector<sal_Int32> m_arrChildIndizies;
// I'm moving through a tree, but its elements have no GetNextSibling,
// so I have to remember where each child is in relation to its parent.
// That is the path from the root node to m_xCurrentObject
public:
IndexAccessIterator(css::uno::Reference< css::uno::XInterface> const & xStartingPoint);
virtual ~IndexAccessIterator();
css::uno::Reference< css::uno::XInterface> const & Next();
virtual void Invalidate() { m_xCurrentObject = nullptr; }
protected:
virtual bool ShouldHandleElement(const css::uno::Reference< css::uno::XInterface>& /*rElement*/) { return true; }
// This can be used to exclude certain elements; elements for which
// this function returns sal_True will be simply skipped.
// If this element is returned from Next(), then one can get
// here get a little more information on the element.
// That's why this method is not const.
virtual bool ShouldStepInto(const css::uno::Reference< css::uno::XInterface>& /*xContainer*/) const { return true; }
};
} // namespace comphelper
#endif // INCLUDED_COMPHELPER_CONTAINER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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