transmission/qt/TorrentDelegate.cc

580 lines
18 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.
*
*/
#include <QApplication>
#include <QFont>
#include <QFontMetrics>
#include <QIcon>
#include <QModelIndex>
#include <QPainter>
#include <QPixmap>
#include <QPixmapCache>
#include <QStyleOptionProgressBar>
#include "Formatter.h"
#include "Torrent.h"
#include "TorrentDelegate.h"
#include "TorrentModel.h"
#include "Utils.h"
enum
{
GUI_PAD = 6,
BAR_HEIGHT = 12
};
QColor TorrentDelegate::greenBrush;
QColor TorrentDelegate::blueBrush;
QColor TorrentDelegate::silverBrush;
QColor TorrentDelegate::greenBack;
QColor TorrentDelegate::blueBack;
QColor TorrentDelegate::silverBack;
namespace
{
class ItemLayout
{
private:
QString myNameText;
QString myStatusText;
QString myProgressText;
public:
QFont nameFont;
QFont statusFont;
QFont progressFont;
QRect iconRect;
QRect emblemRect;
QRect nameRect;
QRect statusRect;
QRect barRect;
QRect progressRect;
public:
ItemLayout(QString const& nameText, QString const& statusText, QString const& progressText, QIcon const& emblemIcon,
QFont const& baseFont, Qt::LayoutDirection direction, QPoint const& topLeft, int width);
QSize size() const
{
return (iconRect | nameRect | statusRect | barRect | progressRect).size();
}
QString nameText() const
{
return elidedText(nameFont, myNameText, nameRect.width());
}
QString statusText() const
{
return elidedText(statusFont, myStatusText, statusRect.width());
}
QString progressText() const
{
return elidedText(progressFont, myProgressText, progressRect.width());
}
private:
QString elidedText(QFont const& font, QString const& text, int width) const
{
return QFontMetrics(font).elidedText(text, Qt::ElideRight, width);
}
};
ItemLayout::ItemLayout(QString const& nameText, QString const& statusText, QString const& progressText, QIcon const& emblemIcon,
QFont const& baseFont, Qt::LayoutDirection direction, QPoint const& topLeft, int width) :
myNameText(nameText),
myStatusText(statusText),
myProgressText(progressText),
nameFont(baseFont),
statusFont(baseFont),
progressFont(baseFont)
{
QStyle const* style(qApp->style());
int const iconSize(style->pixelMetric(QStyle::PM_LargeIconSize));
nameFont.setWeight(QFont::Bold);
QFontMetrics const nameFM(nameFont);
QSize const nameSize(nameFM.size(0, myNameText));
statusFont.setPointSize(static_cast<int>(statusFont.pointSize() * 0.9));
QFontMetrics const statusFM(statusFont);
QSize const statusSize(statusFM.size(0, myStatusText));
progressFont.setPointSize(static_cast<int>(progressFont.pointSize() * 0.9));
QFontMetrics const progressFM(progressFont);
QSize const progressSize(progressFM.size(0, myProgressText));
QRect baseRect(topLeft, QSize(width, 0));
Utils::narrowRect(baseRect, iconSize + GUI_PAD, 0, direction);
nameRect = baseRect.adjusted(0, 0, 0, nameSize.height());
statusRect = nameRect.adjusted(0, nameRect.height() + 1, 0, statusSize.height() + 1);
barRect = statusRect.adjusted(0, statusRect.height() + 1, 0, BAR_HEIGHT + 1);
progressRect = barRect.adjusted(0, barRect.height() + 1, 0, progressSize.height() + 1);
iconRect = style->alignedRect(direction, Qt::AlignLeft | Qt::AlignVCenter, QSize(iconSize, iconSize),
QRect(topLeft, QSize(width, progressRect.bottom() - nameRect.top())));
emblemRect = style->alignedRect(direction, Qt::AlignRight | Qt::AlignBottom,
emblemIcon.actualSize(iconRect.size() / 2, QIcon::Normal, QIcon::On), iconRect);
}
} // namespace
TorrentDelegate::TorrentDelegate(QObject* parent) :
QStyledItemDelegate(parent),
myProgressBarStyle(new QStyleOptionProgressBar)
{
myProgressBarStyle->minimum = 0;
myProgressBarStyle->maximum = 1000;
greenBrush = QColor("forestgreen");
greenBack = QColor("darkseagreen");
blueBrush = QColor("steelblue");
blueBack = QColor("lightgrey");
silverBrush = QColor("silver");
silverBack = QColor("grey");
}
TorrentDelegate::~TorrentDelegate()
{
delete myProgressBarStyle;
}
/***
****
***/
QSize TorrentDelegate::margin(QStyle const& style) const
{
Q_UNUSED(style);
return QSize(4, 4);
}
QString TorrentDelegate::progressString(Torrent const& tor)
{
bool const isMagnet(!tor.hasMetadata());
bool const isDone(tor.isDone());
bool const isSeed(tor.isSeed());
uint64_t const haveTotal(tor.haveTotal());
QString str;
double seedRatio;
bool const hasSeedRatio(tor.getSeedRatio(seedRatio));
if (isMagnet) // magnet link with no metadata
{
//: First part of torrent progress string;
//: %1 is the percentage of torrent metadata downloaded
str = tr("Magnetized transfer - retrieving metadata (%1%)").
arg(Formatter::percentToString(tor.metadataPercentDone() * 100.0));
}
else if (!isDone) // downloading
{
//: First part of torrent progress string;
//: %1 is how much we've got,
//: %2 is how much we'll have when done,
//: %3 is a percentage of the two
str = tr("%1 of %2 (%3%)").arg(Formatter::sizeToString(haveTotal)).arg(Formatter::sizeToString(tor.sizeWhenDone())).
arg(Formatter::percentToString(tor.percentDone() * 100.0));
}
else if (!isSeed) // partial seed
{
if (hasSeedRatio)
{
//: First part of torrent progress string;
//: %1 is how much we've got,
//: %2 is the torrent's total size,
//: %3 is a percentage of the two,
//: %4 is how much we've uploaded,
//: %5 is our upload-to-download ratio,
//: %6 is the ratio we want to reach before we stop uploading
str = tr("%1 of %2 (%3%), uploaded %4 (Ratio: %5 Goal: %6)").arg(Formatter::sizeToString(haveTotal)).
arg(Formatter::sizeToString(tor.totalSize())).
arg(Formatter::percentToString(tor.percentComplete() * 100.0)).
arg(Formatter::sizeToString(tor.uploadedEver())).arg(Formatter::ratioToString(tor.ratio())).
arg(Formatter::ratioToString(seedRatio));
}
else
{
//: First part of torrent progress string;
//: %1 is how much we've got,
//: %2 is the torrent's total size,
//: %3 is a percentage of the two,
//: %4 is how much we've uploaded,
//: %5 is our upload-to-download ratio
str = tr("%1 of %2 (%3%), uploaded %4 (Ratio: %5)").arg(Formatter::sizeToString(haveTotal)).
arg(Formatter::sizeToString(tor.totalSize())).
arg(Formatter::percentToString(tor.percentComplete() * 100.0)).
arg(Formatter::sizeToString(tor.uploadedEver())).arg(Formatter::ratioToString(tor.ratio()));
}
}
else // seeding
{
if (hasSeedRatio)
{
//: First part of torrent progress string;
//: %1 is the torrent's total size,
//: %2 is how much we've uploaded,
//: %3 is our upload-to-download ratio,
//: %4 is the ratio we want to reach before we stop uploading
str = tr("%1, uploaded %2 (Ratio: %3 Goal: %4)").arg(Formatter::sizeToString(haveTotal)).
arg(Formatter::sizeToString(tor.uploadedEver())).arg(Formatter::ratioToString(tor.ratio())).
arg(Formatter::ratioToString(seedRatio));
}
else // seeding w/o a ratio
{
//: First part of torrent progress string;
//: %1 is the torrent's total size,
//: %2 is how much we've uploaded,
//: %3 is our upload-to-download ratio
str = tr("%1, uploaded %2 (Ratio: %3)").arg(Formatter::sizeToString(haveTotal)).
arg(Formatter::sizeToString(tor.uploadedEver())).arg(Formatter::ratioToString(tor.ratio()));
}
}
// add time when downloading
if ((hasSeedRatio && tor.isSeeding()) || tor.isDownloading())
{
if (tor.hasETA())
{
//: Second (optional) part of torrent progress string;
//: %1 is duration;
//: notice that leading space (before the dash) is included here
str += tr(" - %1 left").arg(Formatter::timeToString(tor.getETA()));
}
else
{
//: Second (optional) part of torrent progress string;
//: notice that leading space (before the dash) is included here
str += tr(" - Remaining time unknown");
}
}
return str.trimmed();
}
QString TorrentDelegate::shortTransferString(Torrent const& tor)
{
QString str;
bool const haveMeta(tor.hasMetadata());
bool const haveDown(haveMeta && ((tor.webseedsWeAreDownloadingFrom() > 0) || (tor.peersWeAreDownloadingFrom() > 0)));
bool const haveUp(haveMeta && tor.peersWeAreUploadingTo() > 0);
if (haveDown)
{
str = Formatter::downloadSpeedToString(tor.downloadSpeed()) + QLatin1String(" ") +
Formatter::uploadSpeedToString(tor.uploadSpeed());
}
else if (haveUp)
{
str = Formatter::uploadSpeedToString(tor.uploadSpeed());
}
return str.trimmed();
}
QString TorrentDelegate::shortStatusString(Torrent const& tor)
{
QString str;
switch (tor.getActivity())
{
case TR_STATUS_CHECK:
str = tr("Verifying local data (%1% tested)").arg(Formatter::percentToString(tor.getVerifyProgress() * 100.0));
break;
case TR_STATUS_DOWNLOAD:
case TR_STATUS_SEED:
str = shortTransferString(tor) + QLatin1String(" ") + tr("Ratio: %1").arg(Formatter::ratioToString(tor.ratio()));
break;
default:
str = tor.activityString();
break;
}
return str.trimmed();
}
QString TorrentDelegate::statusString(Torrent const& tor)
{
QString str;
if (tor.hasError())
{
str = tor.getError();
}
else
{
switch (tor.getActivity())
{
case TR_STATUS_STOPPED:
case TR_STATUS_CHECK_WAIT:
case TR_STATUS_CHECK:
case TR_STATUS_DOWNLOAD_WAIT:
case TR_STATUS_SEED_WAIT:
str = shortStatusString(tor);
break;
case TR_STATUS_DOWNLOAD:
if (!tor.hasMetadata())
{
str = tr("Downloading metadata from %Ln peer(s) (%1% done)", nullptr, tor.peersWeAreDownloadingFrom()).
arg(Formatter::percentToString(100.0 * tor.metadataPercentDone()));
}
else
{
/* it would be nicer for translation if this was all one string, but I don't see how to do multiple %n's in
* tr() */
if (tor.connectedPeersAndWebseeds() == 0)
{
//: First part of phrase "Downloading from ... peer(s) and ... web seed(s)"
str = tr("Downloading from %Ln peer(s)", nullptr, tor.peersWeAreDownloadingFrom());
}
else
{
//: First part of phrase "Downloading from ... of ... connected peer(s) and ... web seed(s)"
str = tr("Downloading from %1 of %Ln connected peer(s)", nullptr, tor.connectedPeersAndWebseeds()).
arg(tor.peersWeAreDownloadingFrom());
}
if (tor.webseedsWeAreDownloadingFrom())
{
//: Second (optional) part of phrase "Downloading from ... of ... connected peer(s) and ... web seed(s)";
//: notice that leading space (before "and") is included here
str += tr(" and %Ln web seed(s)", nullptr, tor.webseedsWeAreDownloadingFrom());
}
}
break;
case TR_STATUS_SEED:
if (tor.connectedPeers() == 0)
{
str = tr("Seeding to %Ln peer(s)", nullptr, tor.peersWeAreUploadingTo());
}
else
{
str = tr("Seeding to %1 of %Ln connected peer(s)", nullptr, tor.connectedPeers()).arg(tor.peersWeAreUploadingTo());
}
break;
default:
str = tr("Error");
break;
}
}
if (tor.isReadyToTransfer())
{
QString s = shortTransferString(tor);
if (!s.isEmpty())
{
str += tr(" - ") + s;
}
}
return str.trimmed();
}
/***
****
***/
QSize TorrentDelegate::sizeHint(QStyleOptionViewItem const& option, Torrent const& tor) const
{
QSize const m(margin(*qApp->style()));
ItemLayout const layout(tor.name(), progressString(tor), statusString(tor), QIcon(), option.font, option.direction,
QPoint(0, 0), option.rect.width() - m.width() * 2);
return layout.size() + m * 2;
}
QSize TorrentDelegate::sizeHint(QStyleOptionViewItem const& option, QModelIndex const& index) const
{
Torrent const* tor(index.data(TorrentModel::TorrentRole).value<Torrent const*>());
return sizeHint(option, *tor);
}
void TorrentDelegate::paint(QPainter* painter, QStyleOptionViewItem const& option, QModelIndex const& index) const
{
Torrent const* tor(index.data(TorrentModel::TorrentRole).value<Torrent const*>());
painter->save();
painter->setClipRect(option.rect);
drawTorrent(painter, option, *tor);
painter->restore();
}
void TorrentDelegate::setProgressBarPercentDone(QStyleOptionViewItem const& option, Torrent const& tor) const
{
double seedRatioLimit;
if (tor.isSeeding() && tor.getSeedRatio(seedRatioLimit))
{
double const seedRateRatio = tor.ratio() / seedRatioLimit;
int const scaledProgress = seedRateRatio * (myProgressBarStyle->maximum - myProgressBarStyle->minimum);
myProgressBarStyle->progress = myProgressBarStyle->minimum + scaledProgress;
}
else
{
bool const isMagnet(!tor.hasMetadata());
myProgressBarStyle->direction = option.direction;
myProgressBarStyle->progress = static_cast<int>(myProgressBarStyle->minimum + (isMagnet ? tor.metadataPercentDone() :
tor.percentDone()) * (myProgressBarStyle->maximum - myProgressBarStyle->minimum));
}
}
void TorrentDelegate::drawTorrent(QPainter* painter, QStyleOptionViewItem const& option, Torrent const& tor) const
{
QStyle const* style(qApp->style());
bool const isPaused(tor.isPaused());
bool const isItemSelected((option.state & QStyle::State_Selected) != 0);
bool const isItemEnabled((option.state & QStyle::State_Enabled) != 0);
bool const isItemActive((option.state & QStyle::State_Active) != 0);
painter->save();
if (isItemSelected)
{
QPalette::ColorGroup cg = isItemEnabled ? QPalette::Normal : QPalette::Disabled;
if (cg == QPalette::Normal && !isItemActive)
{
cg = QPalette::Inactive;
}
painter->fillRect(option.rect, option.palette.brush(cg, QPalette::Highlight));
}
QIcon::Mode im;
if (isPaused || !isItemEnabled)
{
im = QIcon::Disabled;
}
else if (isItemSelected)
{
im = QIcon::Selected;
}
else
{
im = QIcon::Normal;
}
QIcon::State qs;
if (isPaused)
{
qs = QIcon::Off;
}
else
{
qs = QIcon::On;
}
QPalette::ColorGroup cg = QPalette::Normal;
if (isPaused || !isItemEnabled)
{
cg = QPalette::Disabled;
}
if (cg == QPalette::Normal && !isItemActive)
{
cg = QPalette::Inactive;
}
QPalette::ColorRole cr;
if (isItemSelected)
{
cr = QPalette::HighlightedText;
}
else
{
cr = QPalette::Text;
}
QStyle::State progressBarState(option.state);
if (isPaused)
{
progressBarState = QStyle::State_None;
}
progressBarState |= QStyle::State_Small;
QIcon::Mode const emblemIm = isItemSelected ? QIcon::Selected : QIcon::Normal;
QIcon const emblemIcon = tor.hasError() ? QIcon::fromTheme(QLatin1String("emblem-important"),
style->standardIcon(QStyle::SP_MessageBoxWarning)) : QIcon();
// layout
QSize const m(margin(*style));
QRect const contentRect(option.rect.adjusted(m.width(), m.height(), -m.width(), -m.height()));
ItemLayout const layout(tor.name(), progressString(tor), statusString(tor), emblemIcon, option.font, option.direction,
contentRect.topLeft(), contentRect.width());
// render
if (tor.hasError() && !isItemSelected)
{
painter->setPen(QColor("red"));
}
else
{
painter->setPen(option.palette.color(cg, cr));
}
tor.getMimeTypeIcon().paint(painter, layout.iconRect, Qt::AlignCenter, im, qs);
if (!emblemIcon.isNull())
{
emblemIcon.paint(painter, layout.emblemRect, Qt::AlignCenter, emblemIm, qs);
}
painter->setFont(layout.nameFont);
painter->drawText(layout.nameRect, Qt::AlignLeft | Qt::AlignVCenter, layout.nameText());
painter->setFont(layout.statusFont);
painter->drawText(layout.statusRect, Qt::AlignLeft | Qt::AlignVCenter, layout.statusText());
painter->setFont(layout.progressFont);
painter->drawText(layout.progressRect, Qt::AlignLeft | Qt::AlignVCenter, layout.progressText());
myProgressBarStyle->rect = layout.barRect;
if (tor.isDownloading())
{
myProgressBarStyle->palette.setBrush(QPalette::Highlight, blueBrush);
myProgressBarStyle->palette.setColor(QPalette::Base, blueBack);
myProgressBarStyle->palette.setColor(QPalette::Window, blueBack);
}
else if (tor.isSeeding())
{
myProgressBarStyle->palette.setBrush(QPalette::Highlight, greenBrush);
myProgressBarStyle->palette.setColor(QPalette::Base, greenBack);
myProgressBarStyle->palette.setColor(QPalette::Window, greenBack);
}
else
{
myProgressBarStyle->palette.setBrush(QPalette::Highlight, silverBrush);
myProgressBarStyle->palette.setColor(QPalette::Base, silverBack);
myProgressBarStyle->palette.setColor(QPalette::Window, silverBack);
}
myProgressBarStyle->state = progressBarState;
setProgressBarPercentDone(option, tor);
style->drawControl(QStyle::CE_ProgressBar, myProgressBarStyle, painter);
painter->restore();
}