sfx2/source/explorer/nochaos.cxx

   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
  20 #include <sal/config.h>
  21
  22 #include <tools/solar.h>
  23 #include <svl/itempool.hxx>
  24 #include <svl/poolitem.hxx>
  25 #include <svl/stritem.hxx>
  26 #include <nochaos.hxx>
  27 #include <memory>
  28
  29
  30 #define WID_CHAOS_START 500
  31
  32
  33 namespace {
  34
  35 class CntItemPool;
  36
  37 class CntStaticPoolDefaults_Impl
  38 {
  39     static const sal_uInt32  m_nItems = 1;
  40     std::vector<SfxPoolItem*> mvDefaults;
  41     std::unique_ptr<SfxItemInfo[]>  m_pItemInfos;
  42
  43 private:
  44     inline void Insert( SfxPoolItem* pItem );
  45
  46 public:
  47     explicit CntStaticPoolDefaults_Impl();
  48     ~CntStaticPoolDefaults_Impl();
  49     CntStaticPoolDefaults_Impl(const CntStaticPoolDefaults_Impl&) = delete;
  50     CntStaticPoolDefaults_Impl& operator=(const CntStaticPoolDefaults_Impl&) = delete;
  51
  52     std::vector<SfxPoolItem*>*  GetDefaults() { return &mvDefaults; }
  53     const SfxItemInfo*          GetItemInfos() const { return m_pItemInfos.get(); }
  54 };
  55
  56
  57 class CntItemPool: public SfxItemPool
  58 {
  59     static CntItemPool* _pThePool;
  60     sal_uInt16              _nRefs;
  61
  62 protected:
  63              CntItemPool();
  64     virtual ~CntItemPool() override;
  65
  66 public:
  67     static CntItemPool* Acquire();
  68     static sal_uInt16       Release();
  69 };
  70
  71 }
  72
  73 // static
  74 SfxItemPool* NoChaos::GetItemPool()
  75 {
  76     // Get and hold CHAOS item pool.
  77     return CntItemPool::Acquire();
  78 }
  79
  80
  81 // static
  82 sal_uInt16 NoChaos::ReleaseItemPool()
  83 {
  84     // Release CHAOS item pool.
  85     return CntItemPool::Release();
  86 }
  87
  88
  89 //  CntItemPool implementation
  90
  91
  92 static CntStaticPoolDefaults_Impl* pPoolDefs_Impl = nullptr;
  93
  94 // static member!
  95 CntItemPool* CntItemPool::_pThePool = nullptr;
  96
  97
  98 CntItemPool::CntItemPool()
  99 : SfxItemPool( "chaos", WID_CHAOS_START, WID_CHAOS_START, nullptr ),
 100   _nRefs( 0 )
 101 {
 102     FreezeIdRanges();
 103
 104     // Create static defaults.
 105     pPoolDefs_Impl = new CntStaticPoolDefaults_Impl;
 106
 107     // Set item infos.
 108     SetItemInfos( pPoolDefs_Impl->GetItemInfos() );
 109
 110     // Set static pool default items.
 111     SetDefaults( pPoolDefs_Impl->GetDefaults() );
 112 }
 113
 114
 115 //virtual
 116 CntItemPool::~CntItemPool()
 117 {
 118     // Release static pool default items.
 119     ReleaseDefaults();
 120 }
 121
 122
 123 // static
 124 CntItemPool* CntItemPool::Acquire()
 125 {
 126     if ( !_pThePool )
 127         _pThePool = new CntItemPool;
 128
 129     _pThePool->_nRefs++;
 130
 131     return _pThePool;
 132 }
 133
 134
 135 // static
 136 sal_uInt16 CntItemPool::Release()
 137 {
 138     if ( !_pThePool )
 139         return 0;
 140
 141     sal_uInt16& nRefs = _pThePool->_nRefs;
 142
 143     if ( nRefs )
 144         --nRefs;
 145
 146     if ( !nRefs )
 147     {
 148         delete _pThePool;
 149         _pThePool = nullptr;
 150         delete pPoolDefs_Impl;
 151         pPoolDefs_Impl = nullptr;
 152         return 0;
 153     }
 154
 155     return nRefs;
 156 }
 157
 158
 159 // CntStaticPoolDefaults_Impl implementation.
 160
 161
 162 inline void CntStaticPoolDefaults_Impl::Insert(
 163          SfxPoolItem* pItem        /* Static Pool Default Item */ )
 164 {
 165     sal_uInt16 nPos = pItem->Which() - WID_CHAOS_START;
 166
 167     mvDefaults[ nPos ]         = pItem;
 168     m_pItemInfos[ nPos ]._nSID   = 0;
 169     m_pItemInfos[ nPos ]._bPoolable = true;
 170 }
 171
 172
 173 CntStaticPoolDefaults_Impl::~CntStaticPoolDefaults_Impl()
 174 {
 175     for ( sal_uInt32 n = 0; n < m_nItems; ++n )
 176         delete mvDefaults[ n ];
 177 }
 178
 179
 180 CntStaticPoolDefaults_Impl::CntStaticPoolDefaults_Impl()
 181 : mvDefaults( m_nItems, nullptr ),
 182   m_pItemInfos( new SfxItemInfo  [ m_nItems ] )
 183 {
 184     memset( m_pItemInfos.get(), 0, sizeof( SfxItemInfo ) * m_nItems );
 185     Insert( new SfxStringItem( WID_CHAOS_START, OUString() ) );
 186 }
 187
 188 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */