Some work about adaptive color scheme for Web UI (PR #19901) http://[316:c51a:62a3:8b9::4]/d4708/qBittorrent/src/branch/adaptive-webui
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/*
* 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(const 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;
// 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