Compute Progress bar

+  virtual double GetProgress() const;
+  double GetProgressByTic() const;
+  int& GetComputeCost() { return _computeCost; }

+  int           _computeCost;     //!< "compute cost" of shapes being Compute()d
+  int           _progressTic;     //!< counter of calls from SMESH_Mesh::GetComputeProgress()
+  double        _progress;        //!< progress of Compute() [0.,1.]

src/SMESH/SMESH_Algo.cxx

@@ -175,7 +175,7 @@ const SMESH_Algo::Features& SMESH_Algo::GetFeatures( const std::string& algoType
 SMESH_Algo::SMESH_Algo (int hypId, int studyId, SMESH_Gen * gen)
   : SMESH_Hypothesis(hypId, studyId, gen)
 {
-  gen->_mapAlgo[hypId] = this;
+  //gen->_mapAlgo[hypId] = this;
 
   _onlyUnaryInput = _requireDiscreteBoundary = _requireShape = true;
   _quadraticMesh = _supportSubmeshes = false;
@@ -205,28 +205,28 @@ SMESH_0D_Algo::SMESH_0D_Algo(int hypId, int studyId, SMESH_Gen* gen)
 {
   _shapeType = (1 << TopAbs_VERTEX);
   _type = ALGO_0D;
-  gen->_map0D_Algo[hypId] = this;
+  //gen->_map0D_Algo[hypId] = this;
 }
 SMESH_1D_Algo::SMESH_1D_Algo(int hypId, int studyId, SMESH_Gen* gen)
   : SMESH_Algo(hypId, studyId, gen)
 {
   _shapeType = (1 << TopAbs_EDGE);
   _type = ALGO_1D;
-  gen->_map1D_Algo[hypId] = this;
+  //gen->_map1D_Algo[hypId] = this;
 }
 SMESH_2D_Algo::SMESH_2D_Algo(int hypId, int studyId, SMESH_Gen* gen)
   : SMESH_Algo(hypId, studyId, gen)
 {
   _shapeType = (1 << TopAbs_FACE);
   _type = ALGO_2D;
-  gen->_map2D_Algo[hypId] = this;
+  //gen->_map2D_Algo[hypId] = this;
 }
 SMESH_3D_Algo::SMESH_3D_Algo(int hypId, int studyId, SMESH_Gen* gen)
   : SMESH_Algo(hypId, studyId, gen)
 {
   _shapeType = (1 << TopAbs_SOLID);
   _type = ALGO_3D;
-  gen->_map3D_Algo[hypId] = this;
+  //gen->_map3D_Algo[hypId] = this;
 }
 
 //=============================================================================
@@ -681,6 +681,17 @@ void SMESH_Algo::CancelCompute()
   _error = COMPERR_CANCELED;
 }
 
+//================================================================================
+/*
+ * If possible, returns progress of computation [0.,1.]
+ */
+//================================================================================
+
+double SMESH_Algo::GetProgress() const
+{
+  return _progress;
+}
+
 //================================================================================
 /*!
  * \brief store error and comment and then return ( error == COMPERR_OK )
@@ -728,7 +739,7 @@ SMESH_ComputeErrorPtr SMESH_Algo::GetComputeError() const
 
 //================================================================================
 /*!
- * \brief initialize compute error
+ * \brief initialize compute error before call of Compute()
  */
 //================================================================================
 
@@ -743,6 +754,23 @@ void SMESH_Algo::InitComputeError()
   _badInputElements.clear();
 
   _computeCanceled = false;
+  _computeCost     = 1;
+  _progressTic     = 0;
+  _progress        = 0.;
+}
+
+//================================================================================
+/*!
+ * \brief Return compute progress by nb of calls of this method
+ */
+//================================================================================
+
+double SMESH_Algo::GetProgressByTic() const
+{
+  const_cast<SMESH_Algo*>( this )->_progressTic++;
+  double x = 5 * _progressTic;
+  x = ( x < _computeCost ) ? ( x / _computeCost ) : 1.;
+  return 0.9 * sin( x * M_PI / 2 );
 }
 
 //================================================================================

src/SMESH/SMESH_Algo.hxx

@@ -169,6 +169,11 @@ class SMESH_EXPORT SMESH_Algo : public SMESH_Hypothesis
    */
   virtual void CancelCompute();
 
+  /*!
+   * \brief If possible, returns progress of computation [0.,1.]
+   */
+  virtual double GetProgress() const;
+
   /*!
    * \brief evaluates size of prospective mesh on a shape
     * \param aMesh - the mesh
@@ -224,14 +229,23 @@ class SMESH_EXPORT SMESH_Algo : public SMESH_Hypothesis
    */
   virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
   virtual bool SetParametersByDefaults(const TDefaults& dflts, const SMESH_Mesh* theMesh=0);
+
   /*!
    * \brief return compute error
    */
   SMESH_ComputeErrorPtr GetComputeError() const;
   /*!
-   * \brief initialize compute error
+   * \brief initialize compute error before call of Compute()
    */
   void InitComputeError();
+  /*!
+   * \brief Return compute progress by nb of calls of this method
+   */
+  double GetProgressByTic() const;
+  /*!
+   * Return a storage of "compute cost" of shapes being Compute()d.
+   */
+  int& GetComputeCost() { return _computeCost; }
 
 public:
   // ==================================================================
@@ -407,8 +421,12 @@ protected:
   std::list<const SMDS_MeshElement*> _badInputElements; //!< to explain COMPERR_BAD_INPUT_MESH
 
   volatile bool _computeCanceled; //!< is set to True while computing to stop it
+  int           _computeCost;     //!< "compute cost" of shapes being Compute()d
+  int           _progressTic;     //!< counter of calls from SMESH_Mesh::GetComputeProgress()
+  double        _progress;        //!< progress of Compute() [0.,1.]
 };
 
+
 class SMESH_EXPORT SMESH_0D_Algo: public SMESH_Algo
 {
 public: