70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <memory>
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#include <tools/SdGlobalResourceContainer.hxx>
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#include <vcl/image.hxx>
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namespace sd
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{
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/** This simple class stores frequently used icons so that the classes that
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use the icons do not have to store them in every one of their
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instances.
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Icons are addressed over their resource id and are loaded on demand.
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This cache acts like a singleton with a lifetime equal to that of the sd
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module.
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*/
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class IconCache final : public SdGlobalResource
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{
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public:
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/** The lifetime of the returned reference is limited to that of the sd
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module.
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*/
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static IconCache& Instance();
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/** Return the icon with the given resource id.
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@return
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The returned Image may be empty when there is no icon for the
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given id or an error occurred. Should not happen under normal
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circumstances.
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*/
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Image GetIcon(const OUString& rResourceId);
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private:
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class Implementation;
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::std::unique_ptr<Implementation> mpImpl;
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/** The constructor creates the one instance of the cache and registers
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it at the SdGlobalResourceContainer to limit is lifetime to that of
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the sd module.
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*/
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IconCache();
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/** This destructor is called by SdGlobalResourceContainer.
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*/
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virtual ~IconCache() override;
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};
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} // end of namespace sd
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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