utilities/progress_bar/main.cxx

Refer to the Progress Bar Example.

// ****************************************************************************
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2026, 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
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// POSSIBILITY OF SUCH DAMAGE.
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// ****************************************************************************
 
 
#include <cadex/Base/ProgressScope.hxx>
#include <cadex/Base/ProgressStatus.hxx>
#include <cadex/LicenseManager/LicenseError.hxx>
#include <cadex/LicenseManager/LicenseManager.hxx>
#include <cadex/ModelAlgo/MeshGenerator.hxx>
#include <cadex/ModelData/Model.hxx>
#include <cadex/ModelData/ModelReader.hxx>
 
#include <iostream>
 
#include "../../helpers/LicenseHelper.hxx"
#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[])
{
    // 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;
    }
 
    auto aKey = MTKLicenseKey::Value();
 
    // Setup the runtime key
    if (!LicenseHelper::SetupRuntimeKey()) {
        return 1;
    }
 
    // Activate the license (Key must be defined in mtk_license.cxx)
    try {
        mtk::LicenseManager::Activate (aKey);
    } catch (const mtk::LicenseError& theException) {
        mtk::LicenseManager::Deactivate();
        std::cerr << "Failed to activate Manufacturing Toolkit license: " << theException.what() << std::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;
 
    // Register an Observer to progress status
    ProgressStatus aStatus;
    aStatus.Register (anObserver);
 
    // The top scope occupies the whole progress status range
    ProgressScope aTopScope (aStatus);
 
    {
        // The remaining 50% of TopScope for reading
        ProgressScope          aReaderScope (aTopScope, 50);
        ModelData::ModelReader aReader;
        aReader.SetProgressStatus (aStatus);
        aReader.Read (aSource, aModel);
    }
 
    // The remaining 50% of TopScope for meshing
    if (!aModel.IsEmpty() && !aStatus.WasCanceled()) {
        ProgressScope            aMesherScope (aTopScope, 50);
        ModelAlgo::MeshGenerator aMesher;
        // Connect progress status object
        aMesher.SetProgressStatus (aStatus);
        aMesher.Generate (aModel);
    }
 
    // Deactivate license before exit
    mtk::LicenseManager::Deactivate();
 
    return 0;
}