/scr/tee1/isis/lib/Core/CoreUtils/progressfeedback.cpp

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/*
    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

#include "progressfeedback.hpp"
#include "common.hpp"

namespace isis
{
namespace util
{

ProgressFeedback &ProgressFeedback::operator++()
{
    progress();
    return *this;
}

ProgressFeedback::~ProgressFeedback() {}

void ConsoleFeedback::show( size_t max, std::string header )
{
    header += "\n";

    if( disp )
        extend( max );
    else
        disp.reset( new boost::progress_display( max, std::cout, header ) );
}

size_t ConsoleFeedback::extend( size_t by )
{
    if( disp ) {
        long unsigned int at = disp->count();
        disp->restart( disp->expected_count() + by );
        return disp->operator+=( at );
    } else {
        LOG( Debug, warning ) << "You should not use extend, if there is no progress bar shown already. (use show instead)";
        show( by, "" );
        return 0;
    }
}

void ConsoleFeedback::close()
{
    disp.reset();
}
size_t ConsoleFeedback::getMax()
{
    return disp ? disp->expected_count() : 0;
}
size_t ConsoleFeedback::progress( const std::string message, size_t step )
{
    LOG_IF( !disp, Debug, error ) << "Cannot call progress on a not displayed ConsoleFeedBack.";
    LOG_IF( !message.empty(), Debug, warning ) << "ConsoleFeedBack does ignore the message string";
    return disp->operator+=( step );
}


}
}