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transmission/qt/TorrentDelegate.cc

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/*
* 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.
*
* $Id$
*/
#include <iostream>
#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(const QString& nameText, const QString& statusText, const QString& progressText,
const QIcon& emblemIcon, const QFont& baseFont, Qt::LayoutDirection direction,
const QPoint& 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 (const QFont& font, const QString& text, int width) const
{
return QFontMetrics (font).elidedText (text, Qt::ElideRight, width);
}
};
ItemLayout::ItemLayout(const QString& nameText, const QString& statusText, const QString& progressText,
const QIcon& emblemIcon, const QFont& baseFont, Qt::LayoutDirection direction,
const QPoint& topLeft, int width):
myNameText (nameText),
myStatusText (statusText),
myProgressText (progressText),
nameFont (baseFont),
statusFont (baseFont),
progressFont (baseFont)
{
const QStyle * style (qApp->style ());
const int iconSize (style->pixelMetric (QStyle::PM_LargeIconSize));
nameFont.setWeight (QFont::Bold);
const QFontMetrics nameFM (nameFont);
const QSize nameSize (nameFM.size (0, myNameText));
statusFont.setPointSize (static_cast<int> (statusFont.pointSize () * 0.9));
const QFontMetrics statusFM (statusFont);
const QSize statusSize (statusFM.size (0, myStatusText));
progressFont.setPointSize (static_cast<int> (progressFont.pointSize () * 0.9));
const QFontMetrics progressFM (progressFont);
const QSize 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);
}
}
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 (const QStyle& style) const
{
Q_UNUSED (style);
return QSize (4, 4);
}
QString
TorrentDelegate::progressString (const Torrent& tor) const
{
const bool isMagnet (!tor.hasMetadata());
const bool isDone (tor.isDone ());
const bool isSeed (tor.isSeed ());
const uint64_t haveTotal (tor.haveTotal());
QString str;
double seedRatio;
const bool 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 (const Torrent& tor) const
{
QString str;
const bool haveMeta (tor.hasMetadata());
const bool haveDown (haveMeta && ((tor.webseedsWeAreDownloadingFrom()>0) || (tor.peersWeAreDownloadingFrom()>0)));
const bool 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 (const Torrent& tor) const
{
QString str;
static const QChar ratioSymbol (0x262F);
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 (const Torrent& tor) const
{
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)", 0, 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)", 0, 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)", 0, 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)", 0, tor.webseedsWeAreDownloadingFrom());
}
break;
case TR_STATUS_SEED:
if (tor.connectedPeers () == 0)
str = tr ("Seeding to %Ln peer(s)", 0, tor.peersWeAreUploadingTo ());
else
str = tr ("Seeding to %1 of %Ln connected peer(s)", 0, 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 (const QStyleOptionViewItem& option, const Torrent& tor) const
{
const QSize m (margin (*qApp->style ()));
const ItemLayout 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 (const QStyleOptionViewItem & option,
const QModelIndex & index) const
{
const Torrent * tor (index.data (TorrentModel::TorrentRole).value<const Torrent*>());
return sizeHint (option, *tor);
}
void
TorrentDelegate::paint (QPainter * painter,
const QStyleOptionViewItem & option,
const QModelIndex & index) const
{
const Torrent * tor (index.data (TorrentModel::TorrentRole).value<const Torrent*>());
painter->save ();
painter->setClipRect (option.rect);
drawTorrent (painter, option, *tor);
painter->restore ();
}
void
TorrentDelegate::setProgressBarPercentDone (const QStyleOptionViewItem & option,
const Torrent & tor) const
{
double seedRatioLimit;
if (tor.isSeeding() && tor.getSeedRatio(seedRatioLimit))
{
const double seedRateRatio = tor.ratio() / seedRatioLimit;
const int scaledProgress = seedRateRatio * (myProgressBarStyle->maximum - myProgressBarStyle->minimum);
myProgressBarStyle->progress = myProgressBarStyle->minimum + scaledProgress;
}
else
{
const bool 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,
const QStyleOptionViewItem & option,
const Torrent & tor) const
{
const QStyle * style (qApp->style ());
const bool isPaused (tor.isPaused ());
const bool isItemSelected ((option.state & QStyle::State_Selected) != 0);
const bool isItemEnabled ((option.state & QStyle::State_Enabled) != 0);
const bool 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;
const QIcon::Mode emblemIm = isItemSelected ? QIcon::Selected : QIcon::Normal;
const QIcon emblemIcon = tor.hasError () ? QIcon::fromTheme (QLatin1String ("emblem-important"), style->standardIcon (QStyle::SP_MessageBoxWarning)) : QIcon ();
// layout
const QSize m (margin (*style));
const QRect contentRect (option.rect.adjusted (m.width(), m.height(), -m.width(), -m.height()));
const ItemLayout 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 ();
}
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