qBittorrent/src/realprogressbar.cpp
2009-04-05 17:00:55 +00:00

116 lines
3.1 KiB
C++

/*
* 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 "realprogressbar.h"
#include <QPainter>
#include <QtDebug>
#include <QResizeEvent>
RealProgressBar::RealProgressBar(QWidget *parent)
: QWidget(parent), array(1)
{
background = Qt::white;
foreground = Qt::black;
active = false;
array[0] = 0.;
drawPixmap();
}
RealProgressBar::~RealProgressBar()
{
qDebug("RealProgressBar destruction");
}
void RealProgressBar::setBackgroundColor(const QColor &newColor)
{
background = newColor;
drawPixmap();
}
void RealProgressBar::setForegroundColor(const QColor &newColor)
{
foreground = newColor;
drawPixmap();
}
/*
void RealProgressBar::setThread(const RealProgressBarThread *newThread)
{
thread = newThread;
}
*/
void RealProgressBar::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.drawPixmap(rect(), pixmap);
}
void RealProgressBar::resizeEvent(QResizeEvent *event)
{
if(width() != event->oldSize().width())
emit widthChanged(width());
}
void RealProgressBar::setProgress(QRealArray progress)
{
qDebug("setProgress called");
array = progress;
drawPixmap();
}
void RealProgressBar::drawPixmap()
{
if(pixmap.width() != array.size())
pixmap = QPixmap(array.size(), 1);
QPainter painter(&pixmap);
for(int i=0; i<array.size(); i++)
{
painter.setPen(penColor(array[i]));
painter.drawPoint(i,0);
}
update();
}
QColor RealProgressBar::penColor(qreal x)
{
if(x < 0.)
x = 0.;
else
if(x > 1.)
x = 1.;
qreal y = 1. - x;
// Q_ASSERT(x >= 0.);
// Q_ASSERT(y >= 0.);
qreal r1, g1, b1, a1, r2, g2, b2, a2;
foreground.getRgbF(&r1, &g1, &b1, &a1);
background.getRgbF(&r2, &g2, &b2, &a2);
QColor color;
color.setRgbF(x*r1+y*r2, x*g1+y*g2, x*b1+y*b2, x*a1+y*a2);
return color;
}