utilities/progress_bar/main.cxx

Refer to the Progress Bar Example.

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2025, CADEX. All rights reserved.
//
// This file is part of the Manufacturing Toolkit software.
//
// You may use this file under the terms of the BSD license as follows:
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright notice,
//   this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
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// ****************************************************************************
 
 
#include <cadex/Base/ProgressScope.hxx>
#include <cadex/Base/ProgressStatus.hxx>
#include <cadex/LicenseManager_Activate.h>
#include <cadex/ModelAlgo/MeshGenerator.hxx>
#include <cadex/ModelData/Model.hxx>
#include <cadex/ModelData/ModelReader.hxx>
 
#include <iostream>
 
#include "../../mtk_license.cxx"
 
 
using namespace std;
using namespace cadex;
 
class ProgressBarObserver : public ProgressStatus::Observer
{
public:
    void ChangedValue (const ProgressStatus& theInfo) override
    {
        cout << theInfo.Value() << "%" << endl;
    }
 
    void Completed (const ProgressStatus& theInfo) override
    {
        cout << theInfo.Value() << "%: complete!" << endl;
    }
};
 
int main (int argc, char* argv[])
{
    auto aKey = MTKLicenseKey::Value();
 
    // Activate the license (aKey must be defined in mtk_license.cxx)
    if (!CADExLicense_Activate (aKey)) {
        cerr << "Failed to activate Manufacturing Toolkit license." << endl;
        return 1;
    }
 
    // Get the input
    if (argc != 2) {
        cerr << "Usage: " << argv[0] << " <input_file>, where:" << endl;
        cerr << "    <input_file> is a name of the file to be read" << endl;
        return 1;
    }
    const char* aSource = argv[1];
 
    // Create observer
    // An observer must have a greater life span than aStatus
    // so create it in explicit external scope for aStatus
    ProgressBarObserver anObserver;
    anObserver.SetAllNotifyingThreads();
 
    ModelData::Model aModel;
 
    ProgressStatus aStatus;
    aStatus.Register (anObserver); // Register an Observer to progress status
 
    ProgressScope aTopScope (aStatus); // The top scope occupies the whole progress status range
    
    {
        ProgressScope aReaderScope (aTopScope, 50); // The remaining 50% of TopScope for reading
        ModelData::ModelReader aReader;
        aReader.SetProgressStatus (aStatus);
        aReader.Read (aSource, aModel);
    }
 
    if (!aModel.IsEmpty()) {
        ProgressScope aMesherScope (aTopScope, 50); // The remaining 50% of TopScope for meshing
        ModelAlgo::MeshGenerator aMesher;
        aMesher.SetProgressStatus (aStatus); // Connect progress status object
        aMesher.Generate (aModel);
    }
 
    return 0;
}