Christophe Dumez
15 years ago
7 changed files with 182 additions and 7 deletions
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/*
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* Bittorrent Client using Qt4 and libtorrent. |
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* Copyright (C) 2006 Christophe Dumez |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* |
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* In addition, as a special exception, the copyright holders give permission to |
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* link this program with the OpenSSL project's "OpenSSL" library (or with |
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* modified versions of it that use the same license as the "OpenSSL" library), |
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* and distribute the linked executables. You must obey the GNU General Public |
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* License in all respects for all of the code used other than "OpenSSL". If you |
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* modify file(s), you may extend this exception to your version of the file(s), |
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* but you are not obligated to do so. If you do not wish to do so, delete this |
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* exception statement from your version. |
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* |
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* Contact : chris@qbittorrent.org |
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*/ |
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#ifndef PIECEAVAILABILITYBAR_H |
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#define PIECEAVAILABILITYBAR_H |
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#include <QWidget> |
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#include <QPainter> |
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#include <QPixmap> |
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#include <QColor> |
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#include <numeric> |
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#define BAR_HEIGHT 18 |
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class PieceAvailabilityBar: public QWidget { |
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Q_OBJECT |
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private: |
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QPixmap pixmap; |
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public: |
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PieceAvailabilityBar(QWidget *parent): QWidget(parent) { |
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setFixedHeight(BAR_HEIGHT); |
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} |
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void setAvailability(std::vector<int>& avail) { |
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if(avail.empty()) { |
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// Empty bar
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pixmap = QPixmap(1, 1); |
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QPainter painter(&pixmap); |
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painter.setPen(Qt::white); |
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painter.drawPoint(0,0); |
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} else { |
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// Look for maximum value
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double average = std::accumulate(avail.begin(), avail.end(), 0)/(double)avail.size(); |
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uint nb_pieces = avail.size(); |
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pixmap = QPixmap(nb_pieces, 1); |
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QPainter painter(&pixmap); |
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std::vector<int>::iterator it; |
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for(uint i=0; i < nb_pieces; ++i) { |
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painter.setPen(getPieceColor(avail[i], average)); |
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painter.drawPoint(i,0); |
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} |
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} |
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update(); |
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} |
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void clear() { |
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pixmap = QPixmap(); |
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update(); |
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} |
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protected: |
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void paintEvent(QPaintEvent *) { |
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if(pixmap.isNull()) return; |
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QPainter painter(this); |
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painter.drawPixmap(rect(), pixmap); |
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} |
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QColor getPieceColor(int avail, double average) { |
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if(!avail) return Qt::white; |
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//qDebug("avail: %d/%d", avail, max_avail);
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QColor color = Qt::blue; // average avail
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double fraction = 100.*average/avail; |
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return color.lighter(fraction); |
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} |
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}; |
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#endif // PIECEAVAILABILITYBAR_H
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