- FEATURE: Real progress bar in torrent properties that displays downloaded pieces (contribution by

Ishan Arora)

src/realprogressbar.cpp

@@ -0,0 +1,102 @@
+/*
+ * 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.
+ *
+ * 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 *event)
+{
+	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)
+{
+	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;
+}