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transmission/qt/torrent-delegate.cc
2013-09-14 22:45:04 +00:00

474 lines
15 KiB
C++

/*
* This file Copyright (C) Mnemosyne LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* $Id$
*/
#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 "torrent-delegate.h"
#include "torrent-model.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;
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
{
// %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
{
/* %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)
{
/* %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
{
/* %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)
{
/* %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
{
/* %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())
{
str += tr (" - ");
if (tor.hasETA ())
str += tr ("%1 left").arg (Formatter::timeToString (tor.getETA ()));
else
str += tr ("Remaining time unknown");
}
return str;
}
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 = tr ("%1 %2")
.arg(Formatter::downloadSpeedToString(tor.downloadSpeed()))
.arg(Formatter::uploadSpeedToString(tor.uploadSpeed()));
else if (haveUp)
str = Formatter::uploadSpeedToString(tor.uploadSpeed());
return str;
}
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 = tr("%1 %2 %3")
.arg(shortTransferString(tor))
.arg(tr("Ratio:"))
.arg(Formatter::ratioToString(tor.ratio()));
break;
default:
str = tor.activityString ();
break;
}
return str;
}
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 %n 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() */
str = tr ("Downloading from %1 of %n connected peer(s)", 0, tor.connectedPeersAndWebseeds ())
.arg (tor.peersWeAreDownloadingFrom ());
if (tor.webseedsWeAreDownloadingFrom())
str += tr(" and %n web seed(s)", "", tor.webseedsWeAreDownloadingFrom());
}
break;
case TR_STATUS_SEED:
str = tr ("Seeding to %1 of %n 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;
}
/***
****
***/
namespace
{
int MAX3 (int a, int b, int c)
{
const int ab (a > b ? a : b);
return ab > c ? ab : c;
}
}
QSize
TorrentDelegate :: sizeHint (const QStyleOptionViewItem& option, const Torrent& tor) const
{
const QStyle* style (QApplication::style ());
static const int iconSize (style->pixelMetric (QStyle::PM_MessageBoxIconSize));
QFont nameFont (option.font);
nameFont.setWeight (QFont::Bold);
const QFontMetrics nameFM (nameFont);
const QString nameStr (tor.name ());
const int nameWidth = nameFM.width (nameStr);
QFont statusFont (option.font);
statusFont.setPointSize (int (option.font.pointSize () * 0.9));
const QFontMetrics statusFM (statusFont);
const QString statusStr (statusString (tor));
const int statusWidth = statusFM.width (statusStr);
QFont progressFont (statusFont);
const QFontMetrics progressFM (progressFont);
const QString progressStr (progressString (tor));
const int progressWidth = progressFM.width (progressStr);
const QSize m (margin (*style));
return QSize (m.width()*2 + iconSize + GUI_PAD + MAX3 (nameWidth, statusWidth, progressWidth),
//m.height()*3 + nameFM.lineSpacing() + statusFM.lineSpacing()*2 + progressFM.lineSpacing());
m.height()*3 + nameFM.lineSpacing() + statusFM.lineSpacing() + BAR_HEIGHT + progressFM.lineSpacing());
}
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 = 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 (QApplication::style ());
static const int iconSize (style->pixelMetric (QStyle::PM_LargeIconSize));
QFont nameFont (option.font);
nameFont.setWeight (QFont::Bold);
const QFontMetrics nameFM (nameFont);
const QString nameStr (tor.name ());
const QSize nameSize (nameFM.size (0, nameStr));
QFont statusFont (option.font);
statusFont.setPointSize (int (option.font.pointSize () * 0.9));
const QFontMetrics statusFM (statusFont);
const QString statusStr (progressString (tor));
QFont progressFont (statusFont);
const QFontMetrics progressFM (progressFont);
const QString progressStr (statusString (tor));
const bool isPaused (tor.isPaused ());
painter->save ();
if (option.state & QStyle::State_Selected)
{
QPalette::ColorGroup cg = option.state & QStyle::State_Enabled
? QPalette::Normal : QPalette::Disabled;
if (cg == QPalette::Normal && !(option.state & QStyle::State_Active))
cg = QPalette::Inactive;
painter->fillRect(option.rect, option.palette.brush(cg, QPalette::Highlight));
}
QIcon::Mode im;
if (isPaused || !(option.state & QStyle::State_Enabled))
im = QIcon::Disabled;
else if (option.state & QStyle::State_Selected)
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 || !(option.state & QStyle::State_Enabled))
cg = QPalette::Disabled;
if (cg == QPalette::Normal && !(option.state & QStyle::State_Active))
cg = QPalette::Inactive;
QPalette::ColorRole cr;
if (option.state & QStyle::State_Selected)
cr = QPalette::HighlightedText;
else
cr = QPalette::Text;
QStyle::State progressBarState (option.state);
if (isPaused)
progressBarState = QStyle::State_None;
progressBarState |= QStyle::State_Small;
// layout
const QSize m (margin (*style));
QRect fillArea (option.rect);
fillArea.adjust (m.width(), m.height(), -m.width(), -m.height());
QRect iconArea (fillArea.x (), fillArea.y () + (fillArea.height () - iconSize) / 2, iconSize, iconSize);
QRect nameArea (iconArea.x () + iconArea.width () + GUI_PAD, fillArea.y (),
fillArea.width () - GUI_PAD - iconArea.width (), nameSize.height ());
QRect statusArea (nameArea);
statusArea.moveTop (nameArea.y () + nameFM.lineSpacing ());
statusArea.setHeight (nameSize.height ());
QRect barArea (statusArea);
barArea.setHeight (BAR_HEIGHT);
barArea.moveTop (statusArea.y () + statusFM.lineSpacing ());
QRect progArea (statusArea);
progArea.moveTop (barArea.y () + barArea.height ());
// render
if (tor.hasError ())
painter->setPen (QColor ("red"));
else
painter->setPen (option.palette.color (cg, cr));
tor.getMimeTypeIcon().paint (painter, iconArea, Qt::AlignCenter, im, qs);
painter->setFont (nameFont);
painter->drawText (nameArea, 0, nameFM.elidedText (nameStr, Qt::ElideRight, nameArea.width ()));
painter->setFont (statusFont);
painter->drawText (statusArea, 0, statusFM.elidedText (statusStr, Qt::ElideRight, statusArea.width ()));
painter->setFont (progressFont);
painter->drawText (progArea, 0, progressFM.elidedText (progressStr, Qt::ElideRight, progArea.width ()));
myProgressBarStyle->rect = barArea;
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 ();
}