sledgehammer999
9 years ago
17 changed files with 1521 additions and 1010 deletions
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/*
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* Bittorrent Client using Qt and libtorrent. |
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* Copyright (C) 2016 Eugene Shalygin |
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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 QBT_INDEXRANGE_H |
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#define QBT_INDEXRANGE_H |
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#include <QtGlobal> |
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// Interval is defined via [first;last]
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template <typename Index> |
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class IndexInterval |
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{ |
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public: |
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using IndexType = Index; |
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IndexInterval(IndexType first, IndexType last) |
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: m_first {first} |
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, m_last {last} |
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{ |
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Q_ASSERT(first <= last); |
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} |
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IndexType first() const |
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{ |
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return m_first; |
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} |
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IndexType last() const |
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{ |
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return m_last; |
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} |
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private: |
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IndexType m_first; |
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IndexType m_last; |
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}; |
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template <typename T> |
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inline IndexInterval<T> makeInterval(T first, T last) |
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{ |
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return {first, last}; |
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} |
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// range is defined via first index and size
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template <typename Index, typename IndexDiff = Index> |
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class IndexRange |
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{ |
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public: |
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using IndexType = Index; |
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using IndexDiffType = IndexDiff; |
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constexpr IndexRange() |
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: m_first {0} |
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, m_size {0} |
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{ |
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} |
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constexpr IndexRange(IndexType first, IndexDiffType size) |
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: m_first {first} |
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, m_size {size} |
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{ |
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} |
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constexpr IndexRange(const IndexInterval<IndexType> &interval) |
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: m_first {interval.first()} |
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, m_size {interval.last() - interval.first() + 1} |
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{ |
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} |
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constexpr IndexType begin() const |
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{ |
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return m_first; |
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} |
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constexpr IndexType end() const |
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{ |
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return m_first + m_size; |
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} |
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constexpr IndexDiffType size() const |
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{ |
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return m_size; |
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} |
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constexpr IndexType first() const |
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{ |
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return m_first; |
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} |
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constexpr IndexType last() const |
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{ |
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return m_first + m_size - 1; |
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} |
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constexpr bool isEmpty() const |
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{ |
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return m_size == 0; |
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} |
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private: |
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IndexType m_first; |
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IndexDiffType m_size; |
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}; |
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#endif // QBT_INDEXRANGE_H
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@ -0,0 +1,334 @@ |
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/*
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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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#include "piecesbar.h" |
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#include <QApplication> |
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#include <QDebug> |
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#include <QHelpEvent> |
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#include <QPainter> |
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#include <QTextStream> |
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#include <QToolTip> |
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#include "base/bittorrent/torrenthandle.h" |
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#include "base/utils/misc.h" |
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namespace |
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{ |
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using ImageRange = IndexRange<int>; |
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// Computes approximate mapping from image scale (measured in pixels) onto the torrent contents scale (in pieces)
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// However, taking the size of a screen to be ~ 1000 px and the torrent size larger than 10 MiB, the pointing error
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// is well below 0.5 px and thus is negligible.
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class PieceIndexToImagePos |
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{ |
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public: |
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PieceIndexToImagePos(const BitTorrent::TorrentInfo &torrentInfo, const QImage &image) |
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: m_bytesPerPixel {image.width() > 0 ? torrentInfo.totalSize() / image.width() : -1} |
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, m_torrentInfo {torrentInfo} |
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{ |
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if ((m_bytesPerPixel > 0) && (m_bytesPerPixel < 10)) |
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qDebug() << "PieceIndexToImagePos: torrent size is too small for correct computaions." |
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<< "Torrent size =" << torrentInfo.totalSize() << "Image width = " << image.width(); |
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} |
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ImageRange imagePos(const BitTorrent::TorrentInfo::PieceRange &pieces) const |
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{ |
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if (m_bytesPerPixel < 0) |
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return {0, 0}; |
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// the type conversion is used to prevent integer overflow with torrents of 2+ GiB size
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const qlonglong pieceLength = m_torrentInfo.pieceLength(); |
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return makeInterval<ImageRange::IndexType>( |
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(pieces.first() * pieceLength) / m_bytesPerPixel, |
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(pieces.last() * pieceLength + m_torrentInfo.pieceLength(pieces.last()) - 1) / m_bytesPerPixel); |
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} |
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int pieceIndex(int imagePos) const |
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{ |
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return m_bytesPerPixel < 0 ? 0 : (imagePos * m_bytesPerPixel + m_bytesPerPixel / 2) / m_torrentInfo.pieceLength(); |
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} |
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private: |
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const qlonglong m_bytesPerPixel; // how many bytes of the torrent are squeezed into a bar's pixel
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const BitTorrent::TorrentInfo m_torrentInfo; |
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}; |
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class DetailedTooltipRenderer |
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{ |
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public: |
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DetailedTooltipRenderer(QTextStream &stream, const QString &header) |
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: m_stream(stream) |
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{ |
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m_stream << header |
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<< R"(<table style="width:100%; padding: 3px; vertical-align: middle;">)"; |
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} |
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~DetailedTooltipRenderer() |
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{ |
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m_stream << "</table>"; |
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} |
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void operator()(const QString &size, const QString &path) |
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{ |
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m_stream << R"(<tr><td style="white-space:nowrap">)" << size << "</td><td>" << path << "</td></tr>"; |
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} |
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private: |
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QTextStream &m_stream; |
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}; |
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} |
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PiecesBar::PiecesBar(QWidget *parent) |
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: QWidget {parent} |
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, m_torrent {nullptr} |
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, m_borderColor {palette().color(QPalette::Dark)} |
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, m_bgColor {Qt::white} |
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, m_pieceColor {Qt::blue} |
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, m_hovered {false} |
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{ |
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updatePieceColors(); |
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setMouseTracking(true); |
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} |
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void PiecesBar::setTorrent(BitTorrent::TorrentHandle *torrent) |
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{ |
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m_torrent = torrent; |
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if (!m_torrent) |
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clear(); |
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} |
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void PiecesBar::clear() |
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{ |
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m_image = QImage(); |
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update(); |
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} |
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void PiecesBar::setColors(const QColor &background, const QColor &border, const QColor &complete) |
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{ |
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m_bgColor = background; |
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m_borderColor = border; |
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m_pieceColor = complete; |
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updatePieceColors(); |
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requestImageUpdate(); |
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} |
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bool PiecesBar::event(QEvent *e) |
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{ |
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if (e->type() == QEvent::ToolTip) { |
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showToolTip(static_cast<QHelpEvent *>(e)); |
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return true; |
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} |
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else { |
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return base::event(e); |
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} |
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} |
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void PiecesBar::enterEvent(QEvent *e) |
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{ |
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m_hovered = true; |
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base::enterEvent(e); |
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} |
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void PiecesBar::leaveEvent(QEvent *e) |
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{ |
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m_hovered = false; |
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m_highlitedRegion = QRect(); |
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requestImageUpdate(); |
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base::leaveEvent(e); |
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} |
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void PiecesBar::mouseMoveEvent(QMouseEvent *e) |
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{ |
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// if user pointed to a piece which is a part of a single large file,
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// we highlight the space, occupied by this file
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highlightFile(e->pos().x() - borderWidth); |
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base::mouseMoveEvent(e); |
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} |
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void PiecesBar::paintEvent(QPaintEvent *) |
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{ |
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QPainter painter(this); |
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QRect imageRect(borderWidth, borderWidth, width() - 2 * borderWidth, height() - 2 * borderWidth); |
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if (m_image.isNull()) { |
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painter.setBrush(Qt::white); |
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painter.drawRect(imageRect); |
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} |
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else { |
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if (m_image.width() != imageRect.width()) |
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updateImage(m_image); |
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painter.drawImage(imageRect, m_image); |
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} |
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if (!m_highlitedRegion.isNull()) { |
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QColor highlightColor {this->palette().color(QPalette::Active, QPalette::Highlight)}; |
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highlightColor.setAlphaF(0.35); |
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QRect targetHighlightRect {m_highlitedRegion.adjusted(borderWidth, borderWidth, borderWidth, height() - 2 * borderWidth)}; |
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painter.fillRect(targetHighlightRect, highlightColor); |
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} |
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QPainterPath border; |
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border.addRect(0, 0, width(), height()); |
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painter.setPen(m_borderColor); |
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painter.drawPath(border); |
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} |
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void PiecesBar::requestImageUpdate() |
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{ |
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if (updateImage(m_image)) |
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update(); |
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} |
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QColor PiecesBar::backgroundColor() const |
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{ |
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return m_bgColor; |
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} |
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QColor PiecesBar::borderColor() const |
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{ |
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return m_borderColor; |
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} |
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QColor PiecesBar::pieceColor() const |
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{ |
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return m_pieceColor; |
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} |
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const QVector<QRgb> &PiecesBar::pieceColors() const |
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{ |
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return m_pieceColors; |
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} |
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QRgb PiecesBar::mixTwoColors(QRgb rgb1, QRgb rgb2, float ratio) |
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{ |
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int r1 = qRed(rgb1); |
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int g1 = qGreen(rgb1); |
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int b1 = qBlue(rgb1); |
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int r2 = qRed(rgb2); |
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int g2 = qGreen(rgb2); |
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int b2 = qBlue(rgb2); |
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float ratioN = 1.0f - ratio; |
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int r = (r1 * ratioN) + (r2 * ratio); |
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int g = (g1 * ratioN) + (g2 * ratio); |
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int b = (b1 * ratioN) + (b2 * ratio); |
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return qRgb(r, g, b); |
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} |
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void PiecesBar::showToolTip(const QHelpEvent *e) |
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{ |
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if (!m_torrent) |
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return; |
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QString toolTipText; |
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QTextStream stream(&toolTipText, QIODevice::WriteOnly); |
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bool showDetailedInformation = QApplication::keyboardModifiers().testFlag(Qt::ShiftModifier); |
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if (showDetailedInformation) { |
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stream << "<html><body>"; |
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const int imagePos = e->pos().x() - borderWidth; |
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if ((imagePos >=0) && (imagePos < m_image.width())) { |
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PieceIndexToImagePos transform {m_torrent->info(), m_image}; |
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int pieceIndex = transform.pieceIndex(e->pos().x() - borderWidth); |
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QVector<int> files {m_torrent->info().fileIndicesForPiece(pieceIndex)}; |
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QString tooltipTitle; |
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if (files.count() > 1) { |
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tooltipTitle = tr("Files in this piece:"); |
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} |
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else { |
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if (m_torrent->info().fileSize(files.front()) == m_torrent->info().pieceLength(pieceIndex)) |
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tooltipTitle = tr("File in this piece"); |
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else |
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tooltipTitle = tr("File in these pieces"); |
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} |
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DetailedTooltipRenderer renderer(stream, tooltipTitle); |
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const bool isFileNameCorrectionNeeded = this->isFileNameCorrectionNeeded(); |
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for (int f: files) { |
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QString filePath {m_torrent->info().filePath(f)}; |
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if (isFileNameCorrectionNeeded) |
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filePath.replace(QLatin1String("/.unwanted"), QString()); |
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renderer(Utils::Misc::friendlyUnit(m_torrent->info().fileSize(f)), filePath); |
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} |
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} |
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stream << "</body></html>"; |
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} |
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else { |
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stream << simpleToolTipText(); |
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stream << '\n' << tr("Hold Shift key for detailed information"); |
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} |
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stream.flush(); |
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QToolTip::showText(e->globalPos(), toolTipText, this); |
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} |
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void PiecesBar::highlightFile(int imagePos) |
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{ |
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if (!m_torrent || (imagePos < 0) || (imagePos >= m_image.width())) |
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return; |
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PieceIndexToImagePos transform {m_torrent->info(), m_image}; |
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int pieceIndex = transform.pieceIndex(imagePos); |
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QVector<int> fileIndices {m_torrent->info().fileIndicesForPiece(pieceIndex)}; |
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if (fileIndices.count() == 1) { |
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BitTorrent::TorrentInfo::PieceRange filePieces = m_torrent->info().filePieces(fileIndices.first()); |
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ImageRange imageRange = transform.imagePos(filePieces); |
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QRect newHighlitedRegion {imageRange.first(), 0, imageRange.size(), m_image.height()}; |
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|
if (newHighlitedRegion != m_highlitedRegion) { |
||||||
|
m_highlitedRegion = newHighlitedRegion; |
||||||
|
update(); |
||||||
|
} |
||||||
|
} |
||||||
|
else if (!m_highlitedRegion.isEmpty()) { |
||||||
|
m_highlitedRegion = QRect(); |
||||||
|
update(); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
void PiecesBar::updatePieceColors() |
||||||
|
{ |
||||||
|
m_pieceColors = QVector<QRgb>(256); |
||||||
|
for (int i = 0; i < 256; ++i) { |
||||||
|
float ratio = (i / 255.0); |
||||||
|
m_pieceColors[i] = mixTwoColors(backgroundColor().rgb(), m_pieceColor.rgb(), ratio); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
bool PiecesBar::isFileNameCorrectionNeeded() const |
||||||
|
{ |
||||||
|
return false; |
||||||
|
} |
||||||
@ -0,0 +1,109 @@ |
|||||||
|
/*
|
||||||
|
* Bittorrent Client using Qt and libtorrent. |
||||||
|
* Copyright (C) 2016 Eugene Shalygin |
||||||
|
* Copyright (C) 2006 Christophe Dumez |
||||||
|
* |
||||||
|
* 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. |
||||||
|
*/ |
||||||
|
|
||||||
|
#ifndef PIECESBAR_H |
||||||
|
#define PIECESBAR_H |
||||||
|
|
||||||
|
#include <QColor> |
||||||
|
#include <QImage> |
||||||
|
#include <QWidget> |
||||||
|
|
||||||
|
class QHelpEvent; |
||||||
|
|
||||||
|
namespace BitTorrent |
||||||
|
{ |
||||||
|
class TorrentHandle; |
||||||
|
} |
||||||
|
|
||||||
|
class PiecesBar: public QWidget |
||||||
|
{ |
||||||
|
using base = QWidget; |
||||||
|
Q_OBJECT |
||||||
|
Q_DISABLE_COPY(PiecesBar) |
||||||
|
|
||||||
|
public: |
||||||
|
explicit PiecesBar(QWidget *parent = nullptr); |
||||||
|
|
||||||
|
void setTorrent(BitTorrent::TorrentHandle *torrent); |
||||||
|
void setColors(const QColor &background, const QColor &border, const QColor &complete); |
||||||
|
|
||||||
|
virtual void clear(); |
||||||
|
|
||||||
|
// QObject interface
|
||||||
|
virtual bool event(QEvent*) override; |
||||||
|
|
||||||
|
protected: |
||||||
|
// QWidget interface
|
||||||
|
void enterEvent(QEvent*) override; |
||||||
|
void leaveEvent(QEvent*) override; |
||||||
|
void mouseMoveEvent(QMouseEvent*) override; |
||||||
|
|
||||||
|
void paintEvent(QPaintEvent*) override; |
||||||
|
void requestImageUpdate(); |
||||||
|
|
||||||
|
QColor backgroundColor() const; |
||||||
|
QColor borderColor() const; |
||||||
|
QColor pieceColor() const; |
||||||
|
const QVector<QRgb> &pieceColors() const; |
||||||
|
|
||||||
|
// mix two colors by light model, ratio <0, 1>
|
||||||
|
static QRgb mixTwoColors(QRgb rgb1, QRgb rgb2, float ratio); |
||||||
|
|
||||||
|
static constexpr int borderWidth = 1; |
||||||
|
|
||||||
|
private: |
||||||
|
void showToolTip(const QHelpEvent*); |
||||||
|
void highlightFile(int imagePos); |
||||||
|
|
||||||
|
virtual QString simpleToolTipText() const = 0; |
||||||
|
|
||||||
|
/// whether to perform removing of ".unwanted" directory from paths
|
||||||
|
virtual bool isFileNameCorrectionNeeded() const; |
||||||
|
|
||||||
|
// draw new image to replace the actual image
|
||||||
|
// returns true if image was successfully updated
|
||||||
|
virtual bool updateImage(QImage &image) = 0; |
||||||
|
void updatePieceColors(); |
||||||
|
|
||||||
|
const BitTorrent::TorrentHandle *m_torrent; |
||||||
|
QImage m_image; |
||||||
|
// I used values, because it should be possible to change colors at run time
|
||||||
|
// border color
|
||||||
|
QColor m_borderColor; |
||||||
|
// background color
|
||||||
|
QColor m_bgColor; |
||||||
|
// complete piece color
|
||||||
|
QColor m_pieceColor; |
||||||
|
// buffered 256 levels gradient from bg_color to piece_color
|
||||||
|
QVector<QRgb> m_pieceColors; |
||||||
|
bool m_hovered; |
||||||
|
QRect m_highlitedRegion; //!< part of the bar can be highlighted; this rectangle is in the same frame as m_image
|
||||||
|
}; |
||||||
|
|
||||||
|
#endif // PIECESBAR_H
|
||||||
File diff suppressed because it is too large
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Reference in new issue