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https://github.com/qbittorrent/qBittorrent.git
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87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/*
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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 DOWNLOADEDPIECESBAR_H
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#define DOWNLOADEDPIECESBAR_H
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#include <QWidget>
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#include <QPainter>
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#include <QImage>
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#include <QBitArray>
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#include <QVector>
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#define BAR_HEIGHT 18
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class DownloadedPiecesBar: public QWidget {
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Q_OBJECT
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Q_DISABLE_COPY(DownloadedPiecesBar)
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private:
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QImage m_image;
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// I used values, bacause it should be possible to change colors in runtime
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// background color
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int m_bgColor;
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// border color
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int m_borderColor;
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// complete piece color
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int m_pieceColor;
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// incomplete piece color
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int m_dlPieceColor;
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// buffered 256 levels gradient from bg_color to piece_color
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QVector<int> m_pieceColors;
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// last used bitfields, uses to better resize redraw
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// TODO: make a diff pieces to new pieces and update only changed pixels, speedup when update > 20x faster
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QBitArray m_pieces;
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QBitArray m_downloadedPieces;
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// scale bitfield vector to float vector
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QVector<float> bitfieldToFloatVector(const QBitArray &vecin, int reqSize);
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// mix two colors by light model, ratio <0, 1>
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int mixTwoColors(int &rgb1, int &rgb2, float ratio);
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// draw new image and replace actual image
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void updateImage();
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public:
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DownloadedPiecesBar(QWidget *parent);
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void setProgress(const QBitArray &m_pieces, const QBitArray &downloadedPieces);
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void updatePieceColors();
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void clear();
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void setColors(int background, int border, int complete, int incomplete);
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protected:
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void paintEvent(QPaintEvent *);
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};
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#endif // DOWNLOADEDPIECESBAR_H
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