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Diffstat (limited to 'include/comphelper/container.hxx')
-rw-r--r-- | include/comphelper/container.hxx | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/include/comphelper/container.hxx b/include/comphelper/container.hxx new file mode 100644 index 000000000..84acfc5b0 --- /dev/null +++ b/include/comphelper/container.hxx @@ -0,0 +1,76 @@ +/* -*- 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> 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: */ |