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add a progress bar to display some long task status

This commit is contained in:
Gwenhael Goavec-Merou 2019-10-05 18:58:52 +02:00
parent e6be5bd118
commit 4bc6a304d4
2 changed files with 77 additions and 0 deletions
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progressBar.cpp Normal file
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/*
* Copyright (C) 2019 Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
*
* 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 <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include "progressBar.hpp"
ProgressBar::ProgressBar(std::string mess, int maxValue, int progressLen):
_mess(mess), _maxValue(maxValue), _progressLen(progressLen)
{
}
void ProgressBar::display(int value)
{
float percent = ((float)value * 100.0f)/(float)_maxValue;
float nbEq = (percent * (float) _progressLen)/100.0f;
fprintf(stderr, "\r%s: [", _mess.c_str());
for (int z=0; z < nbEq; z++) {
fputc('=', stderr);
}
fprintf(stderr, "%*s", (int)(_progressLen-nbEq), "");
fprintf(stderr, "] %3.2f%%", percent);
}
void ProgressBar::done()
{
display(_maxValue);
fprintf(stderr, "\nDone\n");
}

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progressBar.hpp Normal file
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/*
* Copyright (C) 2019 Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
*
* 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 <https://www.gnu.org/licenses/>.
*/
#ifndef PROGRESSBARE_HPP
#define PROGRESSBARE_HPP
#include <iostream>
class ProgressBar {
public:
ProgressBar(std::string mess, int maxValue, int progressLen);
void display(int value);
void done();
private:
std::string _mess;
int _maxValue;
int _progressLen;
};
#endif