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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_dbaccess.hxx"
26 
27 #include "progressmixer.hxx"
28 
29 /** === begin UNO includes === **/
30 /** === end UNO includes === **/
31 
32 #include <osl/diagnose.h>
33 
34 #include <map>
35 
36 //........................................................................
37 namespace dbmm
38 {
39 //........................................................................
40 
41 	/** === begin UNO using === **/
42 	/** === end UNO using === **/
43 
44 #define OVERALL_RANGE   100000
45 
46     //====================================================================
47 	//= misc types
48 	//====================================================================
49     struct PhaseData
50     {
51         // the weight of the phase, relative to all other phases
52         PhaseWeight nWeight;
53         // the "local"  range of the phase
54         sal_uInt32  nRange;
55         // this is the point in the "overall range" at which this phase starts
56         sal_uInt32  nGlobalStart;
57         /** the "global" range of the phase, i.e. its range after weighting with all other
58             phases
59         */
60         sal_uInt32  nGlobalRange;
61 
PhaseDatadbmm::PhaseData62         PhaseData()
63             :nWeight(1)
64             ,nRange(100)
65             ,nGlobalStart(0)
66             ,nGlobalRange(100)
67         {
68         }
69 
PhaseDatadbmm::PhaseData70         PhaseData( const PhaseWeight _nWeight )
71             :nWeight( _nWeight )
72             ,nRange(100)
73             ,nGlobalStart(0)
74             ,nGlobalRange(100)
75         {
76         }
77     };
78 
79     typedef ::std::map< PhaseID, PhaseData >   Phases;
80 
81     //====================================================================
82 	//= ProgressMixer_Data
83 	//====================================================================
84     struct ProgressMixer_Data
85     {
86         Phases              aPhases;
87         Phases::iterator    pCurrentPhase;
88         sal_uInt32          nWeightSum;         /// the cached sum of the weights
89         double              nOverallStretch;
90         IProgressConsumer&  rConsumer;
91 
ProgressMixer_Datadbmm::ProgressMixer_Data92         ProgressMixer_Data( IProgressConsumer& _rConsumer )
93             :aPhases()
94             ,pCurrentPhase( aPhases.end() )
95             ,nWeightSum( 0 )
96             ,nOverallStretch( 0 )
97             ,rConsumer( _rConsumer )
98         {
99         }
100     };
101 
102 	//--------------------------------------------------------------------
103     namespace
104     {
105 #if OSL_DEBUG_LEVEL > 0
106 	    //----------------------------------------------------------------
lcl_isRunning(const ProgressMixer_Data & _rData)107         bool lcl_isRunning( const ProgressMixer_Data& _rData )
108         {
109             return _rData.pCurrentPhase != _rData.aPhases.end();
110         }
111 #endif
112         //----------------------------------------------------------------
lcl_ensureInitialized(ProgressMixer_Data & _rData)113         void lcl_ensureInitialized( ProgressMixer_Data& _rData )
114         {
115             OSL_PRECOND( _rData.nWeightSum, "lcl_ensureInitialized: we have no phases, this will crash!" );
116 
117             if ( _rData.nOverallStretch )
118                 return;
119 
120             _rData.nOverallStretch = 1.0 * OVERALL_RANGE / _rData.nWeightSum;
121 
122             // tell the single phases their "overall starting point"
123             PhaseWeight nRunningWeight( 0 );
124             for (   Phases::iterator phase = _rData.aPhases.begin();
125                     phase != _rData.aPhases.end();
126                     ++phase
127                 )
128             {
129                 phase->second.nGlobalStart = (sal_uInt32)( nRunningWeight * _rData.nOverallStretch );
130                 nRunningWeight += phase->second.nWeight;
131 
132                 sal_uInt32 nNextPhaseStart = (sal_uInt32)( nRunningWeight * _rData.nOverallStretch );
133                 phase->second.nGlobalRange = nNextPhaseStart - phase->second.nGlobalStart;
134             }
135 
136             _rData.rConsumer.start( OVERALL_RANGE );
137         }
138     }
139 
140 	//====================================================================
141 	//= ProgressMixer
142 	//====================================================================
143 	//--------------------------------------------------------------------
ProgressMixer(IProgressConsumer & _rConsumer)144     ProgressMixer::ProgressMixer( IProgressConsumer& _rConsumer )
145         :m_pData( new ProgressMixer_Data( _rConsumer ) )
146     {
147     }
148 
149 	//--------------------------------------------------------------------
~ProgressMixer()150     ProgressMixer::~ProgressMixer()
151     {
152     }
153 
154     //--------------------------------------------------------------------
registerPhase(const PhaseID _nID,const PhaseWeight _nWeight)155     void ProgressMixer::registerPhase( const PhaseID _nID, const PhaseWeight _nWeight )
156     {
157         OSL_PRECOND( !lcl_isRunning( *m_pData ), "ProgressMixer::registerPhase: already running!" );
158         OSL_ENSURE( m_pData->aPhases.find( _nID ) == m_pData->aPhases.end(),
159             "ProgressMixer::registerPhase: ID already used!" );
160         m_pData->aPhases[ _nID ] = PhaseData( _nWeight );
161         m_pData->nWeightSum += _nWeight;
162     }
163 
164     //--------------------------------------------------------------------
startPhase(const PhaseID _nID,const sal_uInt32 _nPhaseRange)165     void ProgressMixer::startPhase( const PhaseID _nID, const sal_uInt32 _nPhaseRange )
166     {
167         OSL_ENSURE( m_pData->aPhases.find( _nID ) != m_pData->aPhases.end(),
168             "ProgresMixer::startPhase: unknown phase!" );
169 
170         m_pData->aPhases[ _nID ].nRange = _nPhaseRange;
171         m_pData->pCurrentPhase = m_pData->aPhases.find( _nID );
172     }
173 
174     //--------------------------------------------------------------------
advancePhase(const sal_uInt32 _nPhaseProgress)175     void ProgressMixer::advancePhase( const sal_uInt32 _nPhaseProgress )
176     {
177         OSL_PRECOND( lcl_isRunning( *m_pData ), "ProgresMixer::advancePhase: not running!" );
178 
179         // in case this is the first call, ensure all the ranges/weights are calculated
180         // correctly
181         lcl_ensureInitialized( *m_pData );
182 
183         const PhaseData& rPhase( m_pData->pCurrentPhase->second );
184 
185         double nLocalProgress = 1.0 * _nPhaseProgress / rPhase.nRange;
186         sal_uInt32 nOverallProgress = (sal_uInt32)
187             ( rPhase.nGlobalStart + nLocalProgress * rPhase.nGlobalRange );
188 
189         m_pData->rConsumer.advance( nOverallProgress );
190     }
191 
192     //--------------------------------------------------------------------
endPhase()193     void ProgressMixer::endPhase()
194     {
195         OSL_PRECOND( lcl_isRunning( *m_pData ), "ProgresMixer::endPhase: not running!" );
196 
197         // in case this is the first call, ensure all the ranges/weights are calculated
198         // correctly
199         lcl_ensureInitialized( *m_pData );
200 
201         // simply assume the phase's complete range is over
202         advancePhase( m_pData->pCurrentPhase->second.nRange );
203 
204         // if that's the last phase, this is the "global end", too
205         Phases::const_iterator pNextPhase( m_pData->pCurrentPhase );
206         ++pNextPhase;
207         if ( pNextPhase == m_pData->aPhases.end() )
208             m_pData->rConsumer.end();
209     }
210 
211 //........................................................................
212 } // namespace dbmm
213 //........................................................................
214