casacore::LatticeProgress Class Reference

Abstract base class to monitor progress in lattice operations. More...

#include <LatticeProgress.h>

Inheritance diagram for casacore::LatticeProgress:

Public Member Functions
	LatticeProgress ()
virtual	~LatticeProgress ()
void	init (uInt expectedNsteps)
	Initialize the process. More...
virtual void	nstepsDone (uInt nsteps)
	Tell the number of steps done so far. More...
virtual void	done ()
	The process has ended. More...
uInt	expectedNsteps () const
	Recovers the expected number of total steps. More...

Protected Member Functions
virtual void	initDerived ()
	Let a derived class initialize itself. More...

Private Attributes
uInt	itsExpectedNsteps

Detailed Description

Abstract base class to monitor progress in lattice operations.

Intended use:

Public interface

Review Status

Date Reviewed:

yyyy/mm/dd

Synopsis

This is an abstract base class for classes to monitor the progress of an operation on a Lattice. The default implementation offered by this class does nothing. However, a derived class could show the progress using for example a ProgressMeter. A derived class should override the virtual functions from this class.

The user of the LatticeProgress object should first call function init with the total number of steps that are to be done. Thereafter, after each step has been executed, function nstepsDone should be called after each step. Finally, function done should be called.

Example

Motivation

Since operations on Lattices can take a while, it can be useful to show the progress. However, making module Lattices dependent on the class ProgressMeter sounded bad. This abstract class serves as a bridge between the Lattice module and the ProgressMeter class (or any other class showing the progress).

Definition at line 84 of file LatticeProgress.h.

Constructor & Destructor Documentation

casacore::LatticeProgress::LatticeProgress ( )

inline

Definition at line 87 of file LatticeProgress.h.

virtual casacore::LatticeProgress::~LatticeProgress ( )

virtual

Member Function Documentation

virtual void casacore::LatticeProgress::done ( )

virtual

The process has ended.

Reimplemented in casacore::LattStatsProgress, casa::ImageMomentsProgress, and casacore::LatticeHistProgress.

uInt casacore::LatticeProgress::expectedNsteps ( ) const

inline

Recovers the expected number of total steps.

Definition at line 106 of file LatticeProgress.h.

References itsExpectedNsteps.

void casacore::LatticeProgress::init

(

uInt

expectedNsteps

)

Initialize the process.

It sets the expected number of steps and calls initDerived, so a derived class can initialize itself.

virtual void casacore::LatticeProgress::initDerived ( )

protectedvirtual

Let a derived class initialize itself.

This function is called by init. The derived class should create the ProgressMeter in here.

Reimplemented in casacore::LattStatsProgress, casa::ImageMomentsProgress, and casacore::LatticeHistProgress.

virtual void casacore::LatticeProgress::nstepsDone ( uInt  nsteps )

virtual

Tell the number of steps done so far.

The default implementation does nothing. A derived class should call the ProgressMeter function update

Reimplemented in casacore::LattStatsProgress, casa::ImageMomentsProgress, and casacore::LatticeHistProgress.

Member Data Documentation

uInt casacore::LatticeProgress::itsExpectedNsteps

private

Definition at line 117 of file LatticeProgress.h.

Referenced by expectedNsteps().

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The documentation for this class was generated from the following file:

• casa/casacore/lattices/LatticeMath/LatticeProgress.h