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.
   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 <unotools/componentresmodule.hxx>
  21
  22 #include <tools/resmgr.hxx>
  23 #include <osl/diagnose.h>
  24 #include <rtl/strbuf.hxx>
  25
  26 //........................................................................
  27 namespace utl
  28 {
  29 //........................................................................
  30
  31     //====================================================================
  32     //= OComponentResModuleImpl
  33     //====================================================================
  34     /** PIMPL-class for OComponentResourceModule
  35
  36         not threadsafe!
  37     */
  38     class OComponentResModuleImpl
  39     {
  40     private:
  41         ResMgr*         m_pResources;
  42         bool            m_bInitialized;
  43         OString  m_sResFilePrefix;
  44
  45     public:
  46         OComponentResModuleImpl( const OString& _rResFilePrefix )
  47             :m_pResources( NULL )
  48             ,m_bInitialized( false )
  49             ,m_sResFilePrefix( _rResFilePrefix )
  50         {
  51         }
  52
  53         ~OComponentResModuleImpl()
  54         {
  55             freeResManager();
  56         }
  57
  58         /** releases our resource manager
  59         */
  60         void freeResManager();
  61
  62         /** retrieves our resource manager
  63         */
  64         ResMgr* getResManager();
  65
  66     private:
  67         OComponentResModuleImpl();                                              // never implemented
  68         OComponentResModuleImpl( const OComponentResModuleImpl& );              // never implemented
  69         OComponentResModuleImpl& operator=( const OComponentResModuleImpl& );   // never implemented
  70     };
  71
  72     //--------------------------------------------------------------------
  73     void OComponentResModuleImpl::freeResManager()
  74     {
  75         delete m_pResources, m_pResources = NULL;
  76         m_bInitialized = false;
  77     }
  78
  79     //--------------------------------------------------------------------
  80     ResMgr* OComponentResModuleImpl::getResManager()
  81     {
  82         if ( !m_pResources && !m_bInitialized )
  83         {
  84             // create a manager with a fixed prefix
  85             OString aMgrName = m_sResFilePrefix;
  86
  87             m_pResources = ResMgr::CreateResMgr( aMgrName.getStr() );
  88             OSL_ENSURE( m_pResources,
  89                     OStringBuffer( "OModuleImpl::getResManager: could not create the resource manager (file name: " )
  90                 .append(aMgrName)
  91                 .append(")!").getStr() );
  92
  93             m_bInitialized = sal_True;
  94         }
  95         return m_pResources;
  96     }
  97
  98     //====================================================================
  99     //= OComponentResourceModule
 100     //====================================================================
 101     //--------------------------------------------------------------------
 102     OComponentResourceModule::OComponentResourceModule( const OString& _rResFilePrefix )
 103         :BaseClass()
 104         ,m_pImpl( new OComponentResModuleImpl( _rResFilePrefix ) )
 105     {
 106     }
 107
 108     //--------------------------------------------------------------------
 109     OComponentResourceModule::~OComponentResourceModule()
 110     {
 111     }
 112
 113     //-------------------------------------------------------------------------
 114     ResMgr* OComponentResourceModule::getResManager()
 115     {
 116         ::osl::MutexGuard aGuard( m_aMutex );
 117         return m_pImpl->getResManager();
 118     }
 119
 120     //--------------------------------------------------------------------------
 121     void OComponentResourceModule::onFirstClient()
 122     {
 123         BaseClass::onFirstClient();
 124     }
 125
 126     //--------------------------------------------------------------------------
 127     void OComponentResourceModule::onLastClient()
 128     {
 129         m_pImpl->freeResManager();
 130         BaseClass::onLastClient();
 131     }
 132
 133 //........................................................................
 134 } // namespace utl
 135 //........................................................................
 136
 137 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */