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https://github.com/qbittorrent/qBittorrent.git
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b3378d4599
In addition to the current tooltip, which shows color legend, if user holds the Shift key during hovering we show another tooltip which contains a table of contents for the piece under the moue cursor. The table lists file sizes and names. If the cursor points to a part of a file which spans several pieces, those pieces are highlighted.
110 lines
3.5 KiB
C++
110 lines
3.5 KiB
C++
/*
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* Bittorrent Client using Qt and libtorrent.
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* Copyright (C) 2016 Eugene Shalygin
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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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#ifndef PIECESBAR_H
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#define PIECESBAR_H
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#include <QColor>
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#include <QImage>
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#include <QWidget>
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class QHelpEvent;
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namespace BitTorrent
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{
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class TorrentHandle;
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}
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class PiecesBar: public QWidget
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{
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using base = QWidget;
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Q_OBJECT
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Q_DISABLE_COPY(PiecesBar)
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public:
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explicit PiecesBar(QWidget *parent = nullptr);
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void setTorrent(BitTorrent::TorrentHandle *torrent);
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void setColors(const QColor &background, const QColor &border, const QColor &complete);
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virtual void clear();
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// QObject interface
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virtual bool event(QEvent*) override;
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protected:
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// QWidget interface
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void enterEvent(QEvent*) override;
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void leaveEvent(QEvent*) override;
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void mouseMoveEvent(QMouseEvent*) override;
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void paintEvent(QPaintEvent*) override;
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void requestImageUpdate();
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QColor backgroundColor() const;
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QColor borderColor() const;
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QColor pieceColor() const;
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const QVector<QRgb> &pieceColors() const;
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// mix two colors by light model, ratio <0, 1>
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static QRgb mixTwoColors(QRgb rgb1, QRgb rgb2, float ratio);
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static constexpr int borderWidth = 1;
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private:
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void showToolTip(const QHelpEvent*);
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void highlightFile(int imagePos);
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virtual QString simpleToolTipText() const = 0;
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/// whether to perform removing of ".unwanted" directory from paths
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virtual bool isFileNameCorrectionNeeded() const;
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// draw new image to replace the actual image
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// returns true if image was successfully updated
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virtual bool updateImage(QImage &image) = 0;
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void updatePieceColors();
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const BitTorrent::TorrentHandle *m_torrent;
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QImage m_image;
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// I used values, because it should be possible to change colors at run time
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// border color
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QColor m_borderColor;
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// background color
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QColor m_bgColor;
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// complete piece color
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QColor m_pieceColor;
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// buffered 256 levels gradient from bg_color to piece_color
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QVector<QRgb> m_pieceColors;
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bool m_hovered;
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QRect m_highlitedRegion; //!< part of the bar can be highlighted; this rectangle is in the same frame as m_image
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};
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#endif // PIECESBAR_H
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