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    41 

    42 #include "textprogressbar.h"

    43 #include <QByteArray>

    44 #include <stdio.h>

    45 

    46 TextProgressBar::TextProgressBar()

    47     : value(0), maximum(-1), iteration(0)

    48 {

    49 }

    50 

    51 void TextProgressBar::clear()

    52 {

    53     printf("\n");

    54     fflush(stdout);

    55 

    56     iteration = 0;

    57     value = 0;

    58     maximum = -1;

    59 }

    60 

    61 void TextProgressBar::update()

    62 {

    63     ++iteration;

    64 

    65     if (maximum > 0) {

    66         // we know the maximum

    67         // draw a progress bar

    68         int percent = value * 100 / maximum;

    69         int hashes = percent / 2;

    70 

    71         QByteArray progressbar(hashes, '#');

    72         if (percent % 2)

    73             progressbar += '>';

    74 

    75         printf("\r[%-50s] %3d%% %s     ",

    76                progressbar.constData(),

    77                percent,

    78                qPrintable(message));

    79     } else {

    80         // we don't know the maximum, so we can't draw a progress bar

    81         int center = (iteration % 48) + 1; // 50 spaces, minus 2

    82         QByteArray before(qMax(center - 2, 0), ' ');

    83         QByteArray after(qMin(center + 2, 50), ' ');

    84 

    85         printf("\r[%s###%s]      %s      ",

    86                before.constData(), after.constData(), qPrintable(message));

    87     }

    88 }

    89 

    90 void TextProgressBar::setMessage(const QString &m)

    91 {

    92     message = m;

    93 }

    94 

    95 void TextProgressBar::setStatus(qint64 val, qint64 max)

    96 {

    97     value = val;

    98     maximum = max;

    99 }