vcl/inc/impimagetree.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_VCL_IMPIMAGETREE_HXX
  21 #define INCLUDED_VCL_IMPIMAGETREE_HXX
  22
  23 #include "sal/config.h"
  24
  25 #include <list>
  26 #include <utility>
  27 #include <vector>
  28
  29 #include <boost/unordered_map.hpp>
  30
  31 #include "boost/noncopyable.hpp"
  32 #include "com/sun/star/uno/Reference.hxx"
  33 #include "rtl/ustring.hxx"
  34 #include "salhelper/singletonref.hxx"
  35
  36 namespace com { namespace sun { namespace star { namespace container {
  37     class XNameAccess;
  38 } } } }
  39 class BitmapEx;
  40
  41 class ImplImageTree: private boost::noncopyable {
  42 public:
  43     ImplImageTree();
  44
  45     ~ImplImageTree();
  46
  47     // check whether the icon style is installed
  48     bool checkStyle(OUString const & style);
  49
  50     bool loadImage(
  51         OUString const & name, OUString const & style,
  52         BitmapEx & bitmap, bool localized = false, bool loadMissing = false );
  53
  54     bool loadDefaultImage(
  55         OUString const & style,
  56         BitmapEx& bitmap);
  57
  58     void shutDown();
  59         // a crude form of life cycle control (called from DeInitVCL; otherwise,
  60         // if the ImplImageTree singleton were destroyed during exit that would
  61         // be too late for the destructors of the bitmaps in m_iconCache)
  62
  63 private:
  64     bool doLoadImage(
  65         OUString const & name, OUString const & style,
  66         BitmapEx & bitmap, bool localized);
  67
  68     typedef std::list<
  69         std::pair<
  70             OUString,
  71             com::sun::star::uno::Reference<
  72                 com::sun::star::container::XNameAccess > > > Paths;
  73
  74     typedef boost::unordered_map<
  75         OUString, bool, OUStringHash > CheckStyleCache;
  76     typedef boost::unordered_map<
  77         OUString, std::pair< bool, BitmapEx >, OUStringHash > IconCache;
  78
  79     OUString m_style;
  80     Paths m_paths;
  81     CheckStyleCache m_checkStyleCache;
  82     IconCache m_iconCache;
  83     bool m_cacheIcons;
  84
  85     void setStyle(OUString const & style );
  86
  87     void resetPaths();
  88
  89     bool checkStyleCacheLookup( OUString const & style, bool &exists );
  90     bool iconCacheLookup( OUString const & name, bool localized, BitmapEx & bitmap );
  91
  92     bool find(std::vector< OUString > const & paths, BitmapEx & bitmap );
  93 };
  94
  95 typedef salhelper::SingletonRef< ImplImageTree > ImplImageTreeSingletonRef;
  96
  97 #endif
  98
  99 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */