Some work about adaptive color scheme for Web UI (PR #19901) http://[316:c51a:62a3:8b9::4]/d4708/qBittorrent/src/branch/adaptive-webui
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/*
* Bittorrent Client using Qt4 and libtorrent.
* Copyright (C) 2006 Christophe Dumez, Arnaud Demaiziere
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give permission to
* link this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. You must obey the GNU General Public
* License in all respects for all of the code used other than "OpenSSL". If you
* modify file(s), you may extend this exception to your version of the file(s),
* but you are not obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*
* Contact : chris@qbittorrent.org, arnaud@qbittorrent.org
*/
#include "realprogressbarthread.h"
#include "realprogressbar.h"
#include <QtDebug>
#include <QMutexLocker>
RealProgressBarThread::RealProgressBarThread(RealProgressBar *pb, QTorrentHandle &handle) : QThread(pb), thandle(handle), array(pb->width()){
size = pb->width();
abort = false;
connect(pb, SIGNAL(widthChanged(int)), this, SLOT(resize(int)), Qt::DirectConnection);
connect(this, SIGNAL(refreshed(QRealArray)), pb, SLOT(setProgress(QRealArray)));
}
RealProgressBarThread::~RealProgressBarThread(){
qDebug("RealProgressBarThread destruction");
resize(-1);
qDebug("RealProgressBarThread waiting");
wait();
qDebug("RealProgressBarThread destroyed");
}
void RealProgressBarThread::resize(int width)
{
QMutexLocker locker(&mutex);
size = width;
abort = true;
condition.wakeOne();
}
void RealProgressBarThread::refresh()
{
QMutexLocker locker(&mutex);
condition.wakeOne();
}
void RealProgressBarThread::run(){
forever
{
//start checking the torrent information
if(ifInterrupted() == stop)
{
qDebug("RealProgressBarThread stop");
return;
}
size_type total_size = thandle.total_size();
size_type piece_length = thandle.piece_length();
int num_pieces = thandle.num_pieces();
bitfield pieces = thandle.pieces();
//pieces not returned
if (pieces.empty())
{
qDebug("pieces vector not returned");
return;
}
//empty the array
mutex.lock();
for(int i=0; i<array.size(); i++)
array[i] = 0.;
mutex.unlock();
qreal subfraction = array.size() / (qreal) total_size;
qreal fraction = subfraction * piece_length;
bool success = true;
//fill the array with complete pieces
for(int i=0; i<num_pieces; i++)
{
Interrupt temp = ifInterrupted();
if (temp == stop)
{
qDebug("RealProgressBarThread stop");
return;
}
if (temp == restart)
{
qDebug("RealProgressBarThread restart");
success = false;
break;
}
qreal start = i * fraction;
qreal end = start + fraction;
if(pieces[i])
mark(start, end);
}
if (success)
{
/*
qreal sum = 0.;
mutex.lock();
for(int i=0; i<array.size(); i++)
sum += array[i];
qDebug()<<"progress:"<<sum*100./array.size();
mutex.unlock();*/
qDebug("refreshed emmitted");
emit refreshed(array);
//wait for refresh or rezise slot
mutex.lock();
condition.wait(&mutex);
mutex.unlock();
}
}
}
Interrupt RealProgressBarThread::ifInterrupted()
{
QMutexLocker locker(&mutex);
if(abort)
{
abort = false;
if(size < 0)
return stop;
if(size != array.size())
{
array.resize(size);
return restart;
}
}
return ignore;
}
void RealProgressBarThread::mark(qreal start, qreal end, qreal progress){
QMutexLocker locker(&mutex);
if (end > array.size())
end = array.size();
int start_int, end_int;
qreal start_frac, end_frac;
double temp;
start_frac = modf(start, &temp);
start_int = (int) temp;
end_frac = modf(end, &temp);
end_int = (int) temp;
if(start_int == end_int)
{
array[start_int] += progress * (end - start);
return;
}
if (start_frac > 0.)
array[start_int] += progress * (1 - start_frac);
if (end_frac > 0.)
array[end_int] += progress * end_frac;
for(int i=start_int+1; i<end_int; i++)
array[i] += progress;
}