LCOV - code coverage report
Current view: top level - dbaccess/source/ext/macromigration - progressmixer.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 51 0.0 %
Date: 2014-04-14 Functions: 0 11 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       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 "progressmixer.hxx"
      21             : 
      22             : #include <osl/diagnose.h>
      23             : 
      24             : #include <map>
      25             : 
      26             : namespace dbmm
      27             : {
      28             : #define OVERALL_RANGE   100000
      29             : 
      30             :     // misc types
      31             :     struct PhaseData
      32             :     {
      33             :         // the weight of the phase, relative to all other phases
      34             :         PhaseWeight nWeight;
      35             :         // the "local"  range of the phase
      36             :         sal_uInt32  nRange;
      37             :         // this is the point in the "overall range" at which this phase starts
      38             :         sal_uInt32  nGlobalStart;
      39             :         /** the "global" range of the phase, i.e. its range after weighting with all other
      40             :             phases
      41             :         */
      42             :         sal_uInt32  nGlobalRange;
      43             : 
      44           0 :         PhaseData()
      45             :             :nWeight(1)
      46             :             ,nRange(100)
      47             :             ,nGlobalStart(0)
      48           0 :             ,nGlobalRange(100)
      49             :         {
      50           0 :         }
      51             : 
      52           0 :         PhaseData( const PhaseWeight _nWeight )
      53             :             :nWeight( _nWeight )
      54             :             ,nRange(100)
      55             :             ,nGlobalStart(0)
      56           0 :             ,nGlobalRange(100)
      57             :         {
      58           0 :         }
      59             :     };
      60             : 
      61             :     typedef ::std::map< PhaseID, PhaseData >   Phases;
      62             : 
      63             :     // ProgressMixer_Data
      64           0 :     struct ProgressMixer_Data
      65             :     {
      66             :         Phases              aPhases;
      67             :         Phases::iterator    pCurrentPhase;
      68             :         sal_uInt32          nWeightSum;         /// the cached sum of the weights
      69             :         double              nOverallStretch;
      70             :         IProgressConsumer&  rConsumer;
      71             : 
      72           0 :         ProgressMixer_Data( IProgressConsumer& _rConsumer )
      73             :             :aPhases()
      74           0 :             ,pCurrentPhase( aPhases.end() )
      75             :             ,nWeightSum( 0 )
      76             :             ,nOverallStretch( 0 )
      77           0 :             ,rConsumer( _rConsumer )
      78             :         {
      79           0 :         }
      80             :     };
      81             : 
      82             :     namespace
      83             :     {
      84             : #if OSL_DEBUG_LEVEL > 0
      85             :         bool lcl_isRunning( const ProgressMixer_Data& _rData )
      86             :         {
      87             :             return _rData.pCurrentPhase != _rData.aPhases.end();
      88             :         }
      89             : #endif
      90           0 :         void lcl_ensureInitialized( ProgressMixer_Data& _rData )
      91             :         {
      92             :             OSL_PRECOND( _rData.nWeightSum, "lcl_ensureInitialized: we have no phases, this will crash!" );
      93             : 
      94           0 :             if ( _rData.nOverallStretch )
      95           0 :                 return;
      96             : 
      97           0 :             _rData.nOverallStretch = 1.0 * OVERALL_RANGE / _rData.nWeightSum;
      98             : 
      99             :             // tell the single phases their "overall starting point"
     100           0 :             PhaseWeight nRunningWeight( 0 );
     101           0 :             for (   Phases::iterator phase = _rData.aPhases.begin();
     102           0 :                     phase != _rData.aPhases.end();
     103             :                     ++phase
     104             :                 )
     105             :             {
     106           0 :                 phase->second.nGlobalStart = (sal_uInt32)( nRunningWeight * _rData.nOverallStretch );
     107           0 :                 nRunningWeight += phase->second.nWeight;
     108             : 
     109           0 :                 sal_uInt32 nNextPhaseStart = (sal_uInt32)( nRunningWeight * _rData.nOverallStretch );
     110           0 :                 phase->second.nGlobalRange = nNextPhaseStart - phase->second.nGlobalStart;
     111             :             }
     112             : 
     113           0 :             _rData.rConsumer.start( OVERALL_RANGE );
     114             :         }
     115             :     }
     116             : 
     117             :     // ProgressMixer
     118           0 :     ProgressMixer::ProgressMixer( IProgressConsumer& _rConsumer )
     119           0 :         :m_pData( new ProgressMixer_Data( _rConsumer ) )
     120             :     {
     121           0 :     }
     122             : 
     123           0 :     ProgressMixer::~ProgressMixer()
     124             :     {
     125           0 :     }
     126             : 
     127           0 :     void ProgressMixer::registerPhase( const PhaseID _nID, const PhaseWeight _nWeight )
     128             :     {
     129             :         OSL_PRECOND( !lcl_isRunning( *m_pData ), "ProgressMixer::registerPhase: already running!" );
     130             :         OSL_ENSURE( m_pData->aPhases.find( _nID ) == m_pData->aPhases.end(),
     131             :             "ProgressMixer::registerPhase: ID already used!" );
     132           0 :         m_pData->aPhases[ _nID ] = PhaseData( _nWeight );
     133           0 :         m_pData->nWeightSum += _nWeight;
     134           0 :     }
     135             : 
     136           0 :     void ProgressMixer::startPhase( const PhaseID _nID, const sal_uInt32 _nPhaseRange )
     137             :     {
     138             :         OSL_ENSURE( m_pData->aPhases.find( _nID ) != m_pData->aPhases.end(),
     139             :             "ProgresMixer::startPhase: unknown phase!" );
     140             : 
     141           0 :         m_pData->aPhases[ _nID ].nRange = _nPhaseRange;
     142           0 :         m_pData->pCurrentPhase = m_pData->aPhases.find( _nID );
     143           0 :     }
     144             : 
     145           0 :     void ProgressMixer::advancePhase( const sal_uInt32 _nPhaseProgress )
     146             :     {
     147             :         OSL_PRECOND( lcl_isRunning( *m_pData ), "ProgresMixer::advancePhase: not running!" );
     148             : 
     149             :         // in case this is the first call, ensure all the ranges/weights are calculated
     150             :         // correctly
     151           0 :         lcl_ensureInitialized( *m_pData );
     152             : 
     153           0 :         const PhaseData& rPhase( m_pData->pCurrentPhase->second );
     154             : 
     155           0 :         double nLocalProgress = 1.0 * _nPhaseProgress / rPhase.nRange;
     156             :         sal_uInt32 nOverallProgress = (sal_uInt32)
     157           0 :             ( rPhase.nGlobalStart + nLocalProgress * rPhase.nGlobalRange );
     158             : 
     159           0 :         m_pData->rConsumer.advance( nOverallProgress );
     160           0 :     }
     161             : 
     162           0 :     void ProgressMixer::endPhase()
     163             :     {
     164             :         OSL_PRECOND( lcl_isRunning( *m_pData ), "ProgresMixer::endPhase: not running!" );
     165             : 
     166             :         // in case this is the first call, ensure all the ranges/weights are calculated
     167             :         // correctly
     168           0 :         lcl_ensureInitialized( *m_pData );
     169             : 
     170             :         // simply assume the phase's complete range is over
     171           0 :         advancePhase( m_pData->pCurrentPhase->second.nRange );
     172             : 
     173             :         // if that's the last phase, this is the "global end", too
     174           0 :         Phases::const_iterator pNextPhase( m_pData->pCurrentPhase );
     175           0 :         ++pNextPhase;
     176           0 :         if ( pNextPhase == m_pData->aPhases.end() )
     177           0 :             m_pData->rConsumer.end();
     178           0 :     }
     179             : 
     180             : } // namespace dbmm
     181             : 
     182             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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