include/tools/unqidx.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.
   4  *
   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 #ifndef INCLUDED_TOOLS_UNQIDX_HXX
  20 #define INCLUDED_TOOLS_UNQIDX_HXX
  21
  22 #include <tools/toolsdllapi.h>
  23 #include <tools/contnr.hxx>
  24 #include <map>
  25
  26 #define UNIQUEINDEX_ENTRY_NOTFOUND   CONTAINER_ENTRY_NOTFOUND
  27
  28 class TOOLS_DLLPUBLIC SAL_WARN_UNUSED UniqueIndexImpl
  29 {
  30 private:
  31     std::map<sal_uInt32, void*> maMap;
  32     sal_uIntPtr   nStartIndex;
  33     sal_uIntPtr   nUniqIndex;
  34     sal_uIntPtr   nCount;
  35
  36 public:
  37     UniqueIndexImpl( sal_uIntPtr _nStartIndex = 0 )
  38         : maMap(),
  39           nStartIndex(_nStartIndex), nUniqIndex(_nStartIndex), nCount(0) {}
  40
  41     size_t size() const { return maMap.size(); }
  42
  43     sal_uIntPtr   Insert( void* p );
  44     // insert value with key, replacing existing entry if necessary
  45     void          Insert( sal_uIntPtr aIndex, void* p );
  46     void*         Remove( sal_uIntPtr aIndex );
  47     void*         Get( sal_uIntPtr aIndex ) const;
  48
  49     sal_uIntPtr   GetIndexOf( void* p ) const;
  50     sal_uIntPtr   FirstIndex() const;
  51     sal_uIntPtr   LastIndex() const;
  52     sal_uIntPtr   NextIndex( sal_uIntPtr aCurrIndex ) const;
  53 };
  54
  55 template<typename T>
  56 class UniqueIndex : private UniqueIndexImpl
  57 {
  58 public:
  59     UniqueIndex<T>( sal_uIntPtr _nStartIndex = 0 ) : UniqueIndexImpl(_nStartIndex) {}
  60
  61     sal_uIntPtr Insert(T* p) { return UniqueIndexImpl::Insert(p); }
  62     void        Insert(sal_uIntPtr aIdx, T* p) { return UniqueIndexImpl::Insert(aIdx, p); }
  63     T*          Get(sal_uIntPtr idx) const { return static_cast<T*>( UniqueIndexImpl::Get(idx) ); }
  64     T*          Remove(sal_uIntPtr idx) { return static_cast<T*>( UniqueIndexImpl::Remove(idx) ); }
  65     sal_uIntPtr Count() const { return UniqueIndexImpl::size(); }
  66     sal_uIntPtr GetIndexOf(T* p) const { return UniqueIndexImpl::GetIndexOf(p); }
  67
  68     using UniqueIndexImpl::FirstIndex;
  69     using UniqueIndexImpl::LastIndex;
  70     using UniqueIndexImpl::NextIndex;
  71 };
  72
  73 #endif
  74
  75 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */