unotools/source/misc/componentresmodule.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.
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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 #include <unotools/componentresmodule.hxx>
  21
  22 #include <boost/noncopyable.hpp>
  23 #include <tools/resmgr.hxx>
  24 #include <osl/diagnose.h>
  25 #include <rtl/strbuf.hxx>
  26
  27 namespace utl
  28 {
  29
  30     //= OComponentResModuleImpl
  31
  32     /** PIMPL-class for OComponentResourceModule
  33
  34         not threadsafe!
  35     */
  36     class OComponentResModuleImpl: private boost::noncopyable
  37     {
  38     private:
  39         ResMgr*         m_pResources;
  40         bool            m_bInitialized;
  41         OString  m_sResFilePrefix;
  42
  43     public:
  44         OComponentResModuleImpl( const OString& _rResFilePrefix )
  45             :m_pResources( NULL )
  46             ,m_bInitialized( false )
  47             ,m_sResFilePrefix( _rResFilePrefix )
  48         {
  49         }
  50
  51         ~OComponentResModuleImpl()
  52         {
  53             freeResManager();
  54         }
  55
  56         /** releases our resource manager
  57         */
  58         void freeResManager();
  59
  60         /** retrieves our resource manager
  61         */
  62         ResMgr* getResManager();
  63     };
  64
  65     void OComponentResModuleImpl::freeResManager()
  66     {
  67         delete m_pResources, m_pResources = NULL;
  68         m_bInitialized = false;
  69     }
  70
  71     ResMgr* OComponentResModuleImpl::getResManager()
  72     {
  73         if ( !m_pResources && !m_bInitialized )
  74         {
  75             // create a manager with a fixed prefix
  76             OString aMgrName = m_sResFilePrefix;
  77
  78             m_pResources = ResMgr::CreateResMgr( aMgrName.getStr() );
  79             OSL_ENSURE( m_pResources,
  80                     OStringBuffer( "OModuleImpl::getResManager: could not create the resource manager (file name: " )
  81                 .append(aMgrName)
  82                 .append(")!").getStr() );
  83
  84             m_bInitialized = true;
  85         }
  86         return m_pResources;
  87     }
  88
  89     //= OComponentResourceModule
  90
  91     OComponentResourceModule::OComponentResourceModule( const OString& _rResFilePrefix )
  92         :BaseClass()
  93         ,m_pImpl( new OComponentResModuleImpl( _rResFilePrefix ) )
  94     {
  95     }
  96
  97     OComponentResourceModule::~OComponentResourceModule()
  98     {
  99     }
 100
 101     ResMgr* OComponentResourceModule::getResManager()
 102     {
 103         ::osl::MutexGuard aGuard( m_aMutex );
 104         return m_pImpl->getResManager();
 105     }
 106
 107     void OComponentResourceModule::onFirstClient()
 108     {
 109         BaseClass::onFirstClient();
 110     }
 111
 112     void OComponentResourceModule::onLastClient()
 113     {
 114         m_pImpl->freeResManager();
 115         BaseClass::onLastClient();
 116     }
 117
 118 } // namespace utl
 119
 120 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */