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transmission/qt/TorrentDelegate.h
Charles Kerr 2cc5cfe3e3
feat: smart caching of TorrentDelegate::sizeHint() (#1026)
* feat: smart caching of TorrentDelegate::sizeHint()

* chore: bump c++ requirement to c++17 / c++1z
2019-11-06 18:17:48 -06:00

58 lines
1.6 KiB
C++

/*
* This file Copyright (C) 2009-2015 Mnemosyne LLC
*
* It may be used under the GNU GPL versions 2 or 3
* or any future license endorsed by Mnemosyne LLC.
*
*/
#pragma once
#include <optional>
#include <QStyledItemDelegate>
class QStyle;
class QStyleOptionProgressBar;
class Torrent;
class TorrentDelegate : public QStyledItemDelegate
{
Q_OBJECT
public:
explicit TorrentDelegate(QObject* parent = nullptr);
virtual ~TorrentDelegate();
// QAbstractItemDelegate
virtual QSize sizeHint(QStyleOptionViewItem const& option, QModelIndex const& index) const;
virtual void paint(QPainter* painter, QStyleOptionViewItem const& option, QModelIndex const& index) const;
protected:
QSize margin(QStyle const& style) const;
void setProgressBarPercentDone(QStyleOptionViewItem const& option, Torrent const&) const;
// Our own overridables
virtual QSize sizeHint(QStyleOptionViewItem const&, Torrent const&) const;
virtual void drawTorrent(QPainter* painter, QStyleOptionViewItem const& option, Torrent const&) const;
static QString statusString(Torrent const& tor);
static QString progressString(Torrent const& tor);
static QString shortStatusString(Torrent const& tor);
static QString shortTransferString(Torrent const& tor);
protected:
QStyleOptionProgressBar* myProgressBarStyle;
static QColor blueBrush;
static QColor greenBrush;
static QColor silverBrush;
static QColor blueBack;
static QColor greenBack;
static QColor silverBack;
private:
mutable std::optional<int> myHeightHint;
mutable QFont myHeightFont;
};