ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkProgressReporter.h
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1 /*=========================================================================
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3  * Copyright Insight Software Consortium
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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14  * See the License for the specific language governing permissions and
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17  *=========================================================================*/
18 #ifndef __itkProgressReporter_h
19 #define __itkProgressReporter_h
20 
21 #include "itkIntTypes.h"
22 #include "itkProcessObject.h"
23 
24 namespace itk
25 {
60 class ITKCommon_EXPORT ProgressReporter
61 {
62 public:
65  SizeValueType numberOfPixels,
66  SizeValueType numberOfUpdates = 100,
67  float initialProgress = 0.0f,
68  float progressWeight = 1.0f);
69 
72 
74  void CompletedPixel()
75  {
76  // Inline implementation for efficiency.
77  if ( --m_PixelsBeforeUpdate == 0 )
78  {
79  m_PixelsBeforeUpdate = m_PixelsPerUpdate;
80  m_CurrentPixel += m_PixelsPerUpdate;
81  // only thread 0 should update the progress of the filter
82  if ( m_ThreadId == 0 )
83  {
84  m_Filter->UpdateProgress(
85  m_CurrentPixel * m_InverseNumberOfPixels * m_ProgressWeight + m_InitialProgress);
86  }
87  // all threads needs to check the abort flag
88  if ( m_Filter->GetAbortGenerateData() )
89  {
90  std::string msg;
91  ProcessAborted e(__FILE__, __LINE__);
92  msg += "Object " + std::string( m_Filter->GetNameOfClass() ) + ": AbortGenerateDataOn";
93  e.SetDescription(msg);
94  throw e;
95  }
96  }
97  }
99 
100 protected:
109 private:
110  ProgressReporter(); //purposely not implemented
111 };
112 } // end namespace itk
113 
114 #endif
115