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transmission/qt/filterbar.cc

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/*
* 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 <QString>
#include <QtGui>
#include "app.h"
#include "favicon.h"
#include "filters.h"
#include "filterbar.h"
#include "hig.h"
#include "prefs.h"
#include "torrent-filter.h"
#include "torrent-model.h"
#include "utils.h"
/****
*****
***** DELEGATE
*****
****/
enum
{
TorrentCountRole = Qt::UserRole + 1,
TorrentCountStringRole,
ActivityRole,
TrackerRole
};
namespace
{
int getHSpacing (QWidget * w)
{
return qMax (int (HIG::PAD_SMALL), w->style ()->pixelMetric (QStyle::PM_LayoutHorizontalSpacing, 0, w));
}
}
FilterBarComboBoxDelegate :: FilterBarComboBoxDelegate (QObject * parent, QComboBox * combo):
QItemDelegate (parent),
myCombo (combo)
{
}
bool
FilterBarComboBoxDelegate :: isSeparator (const QModelIndex &index)
{
return index.data (Qt::AccessibleDescriptionRole).toString () == QLatin1String ("separator");
}
void
FilterBarComboBoxDelegate :: setSeparator (QAbstractItemModel * model, const QModelIndex& index)
{
model->setData (index, QString::fromLatin1 ("separator"), Qt::AccessibleDescriptionRole);
if (QStandardItemModel *m = qobject_cast<QStandardItemModel*> (model))
if (QStandardItem *item = m->itemFromIndex (index))
item->setFlags (item->flags () & ~ (Qt::ItemIsSelectable|Qt::ItemIsEnabled));
}
void
FilterBarComboBoxDelegate :: paint (QPainter * painter,
const QStyleOptionViewItem & option,
const QModelIndex & index) const
{
if (isSeparator (index))
{
QRect rect = option.rect;
if (const QStyleOptionViewItemV3 *v3 = qstyleoption_cast<const QStyleOptionViewItemV3*> (&option))
if (const QAbstractItemView *view = qobject_cast<const QAbstractItemView*> (v3->widget))
rect.setWidth (view->viewport ()->width ());
QStyleOption opt;
opt.rect = rect;
myCombo->style ()->drawPrimitive (QStyle::PE_IndicatorToolBarSeparator, &opt, painter, myCombo);
}
else
{
QStyleOptionViewItem disabledOption = option;
disabledOption.state &= ~ (QStyle::State_Enabled | QStyle::State_Selected);
QRect boundingBox = option.rect;
const int hmargin = getHSpacing (myCombo);
boundingBox.setLeft (boundingBox.left () + hmargin);
boundingBox.setRight (boundingBox.right () - hmargin);
QRect decorationRect = rect (option, index, Qt::DecorationRole);
decorationRect.moveLeft (decorationRect.left ());
decorationRect.setSize (myCombo->iconSize ());
decorationRect = QStyle::alignedRect (Qt::LeftToRight,
Qt::AlignLeft|Qt::AlignVCenter,
decorationRect.size (), boundingBox);
boundingBox.setLeft (decorationRect.right () + hmargin);
QRect countRect = rect (option, index, TorrentCountStringRole);
countRect = QStyle::alignedRect (Qt::LeftToRight,
Qt::AlignRight|Qt::AlignVCenter,
countRect.size (), boundingBox);
boundingBox.setRight (countRect.left () - hmargin);
const QRect displayRect = boundingBox;
drawBackground (painter, option, index);
QStyleOptionViewItem option2 = option;
option2.decorationSize = myCombo->iconSize ();
drawDecoration (painter, option, decorationRect, decoration (option2,index.data (Qt::DecorationRole)));
drawDisplay (painter, option, displayRect, index.data (Qt::DisplayRole).toString ());
drawDisplay (painter, disabledOption, countRect, index.data (TorrentCountStringRole).toString ());
drawFocus (painter, option, displayRect|countRect);
}
}
QSize
FilterBarComboBoxDelegate :: sizeHint (const QStyleOptionViewItem & option,
const QModelIndex & index) const
{
if (isSeparator (index))
{
const int pm = myCombo->style ()->pixelMetric (QStyle::PM_DefaultFrameWidth, 0, myCombo);
return QSize (pm, pm + 10);
}
else
{
QStyle * s = myCombo->style ();
const int hmargin = getHSpacing (myCombo);
QSize size = QItemDelegate::sizeHint (option, index);
size.setHeight (qMax (size.height (), myCombo->iconSize ().height () + 6));
size.rwidth () += s->pixelMetric (QStyle::PM_FocusFrameHMargin, 0, myCombo);
size.rwidth () += rect (option,index,TorrentCountStringRole).width ();
size.rwidth () += hmargin * 4;
return size;
}
}
/**
***
**/
FilterBarComboBox :: FilterBarComboBox (QWidget * parent):
QComboBox (parent)
{
}
int
FilterBarComboBox :: currentCount () const
{
int count = 0;
const QModelIndex modelIndex = model ()->index (currentIndex (), 0, rootModelIndex ());
if (modelIndex.isValid ())
count = modelIndex.data (TorrentCountRole).toInt ();
return count;
}
void
FilterBarComboBox :: paintEvent (QPaintEvent * e)
{
Q_UNUSED (e);
QStylePainter painter (this);
painter.setPen (palette ().color (QPalette::Text));
// draw the combobox frame, focusrect and selected etc.
QStyleOptionComboBox opt;
initStyleOption (&opt);
painter.drawComplexControl (QStyle::CC_ComboBox, opt);
// draw the icon and text
const QModelIndex modelIndex = model ()->index (currentIndex (), 0, rootModelIndex ());
if (modelIndex.isValid ())
{
QStyle * s = style ();
QRect rect = s->subControlRect (QStyle::CC_ComboBox, &opt, QStyle::SC_ComboBoxEditField, this);
const int hmargin = getHSpacing (this);
rect.setRight (rect.right () - hmargin);
// draw the icon
QPixmap pixmap;
QVariant variant = modelIndex.data (Qt::DecorationRole);
switch (variant.type ())
{
case QVariant::Pixmap: pixmap = qvariant_cast<QPixmap> (variant); break;
case QVariant::Icon: pixmap = qvariant_cast<QIcon> (variant).pixmap (iconSize ()); break;
default: break;
}
if (!pixmap.isNull ())
{
s->drawItemPixmap (&painter, rect, Qt::AlignLeft|Qt::AlignVCenter, pixmap);
rect.setLeft (rect.left () + pixmap.width () + hmargin);
}
// draw the count
QString text = modelIndex.data (TorrentCountStringRole).toString ();
if (!text.isEmpty ())
{
const QPen pen = painter.pen ();
painter.setPen (opt.palette.color (QPalette::Disabled, QPalette::Text));
QRect r = s->itemTextRect (painter.fontMetrics (), rect, Qt::AlignRight|Qt::AlignVCenter, false, text);
painter.drawText (r, 0, text);
rect.setRight (r.left () - hmargin);
painter.setPen (pen);
}
// draw the text
text = modelIndex.data (Qt::DisplayRole).toString ();
text = painter.fontMetrics ().elidedText (text, Qt::ElideRight, rect.width ());
s->drawItemText (&painter, rect, Qt::AlignLeft|Qt::AlignVCenter, opt.palette, true, text);
}
}
/****
*****
***** ACTIVITY
*****
****/
FilterBarComboBox *
FilterBar :: createActivityCombo ()
{
FilterBarComboBox * c = new FilterBarComboBox (this);
FilterBarComboBoxDelegate * delegate = new FilterBarComboBoxDelegate (this, c);
c->setItemDelegate (delegate);
QPixmap blankPixmap (c->iconSize ());
blankPixmap.fill (Qt::transparent);
QIcon blankIcon (blankPixmap);
QStandardItemModel * model = new QStandardItemModel (this);
QStandardItem * row = new QStandardItem (tr ("All"));
row->setData (FilterMode::SHOW_ALL, ActivityRole);
model->appendRow (row);
model->appendRow (new QStandardItem); // separator
delegate->setSeparator (model, model->index (1, 0));
row = new QStandardItem (QIcon::fromTheme ("system-run", blankIcon), tr ("Active"));
row->setData (FilterMode::SHOW_ACTIVE, ActivityRole);
model->appendRow (row);
row = new QStandardItem (QIcon::fromTheme ("go-down", blankIcon), tr ("Downloading"));
row->setData (FilterMode::SHOW_DOWNLOADING, ActivityRole);
model->appendRow (row);
row = new QStandardItem (QIcon::fromTheme ("go-up", blankIcon), tr ("Seeding"));
row->setData (FilterMode::SHOW_SEEDING, ActivityRole);
model->appendRow (row);
row = new QStandardItem (QIcon::fromTheme ("media-playback-pause", blankIcon), tr ("Paused"));
row->setData (FilterMode::SHOW_PAUSED, ActivityRole);
model->appendRow (row);
row = new QStandardItem (blankIcon, tr ("Finished"));
row->setData (FilterMode::SHOW_FINISHED, ActivityRole);
model->appendRow (row);
row = new QStandardItem (QIcon::fromTheme ("view-refresh", blankIcon), tr ("Verifying"));
row->setData (FilterMode::SHOW_VERIFYING, ActivityRole);
model->appendRow (row);
row = new QStandardItem (QIcon::fromTheme ("dialog-error", blankIcon), tr ("Error"));
row->setData (FilterMode::SHOW_ERROR, ActivityRole);
model->appendRow (row);
c->setModel (model);
return c;
}
/****
*****
*****
*****
****/
namespace
{
QString readableHostName (const QString host)
{
// get the readable name...
QString name = host;
const int pos = name.lastIndexOf ('.');
if (pos >= 0)
name.truncate (pos);
if (!name.isEmpty ())
name[0] = name[0].toUpper ();
return name;
}
}
void
FilterBar :: refreshTrackers ()
{
Favicons& favicons = dynamic_cast<MyApp*> (QApplication::instance ())->favicons;
const int firstTrackerRow = 2; // skip over the "All" and separator...
// pull info from the tracker model...
QSet<QString> oldHosts;
for (int row=firstTrackerRow; ; ++row)
{
QModelIndex index = myTrackerModel->index (row, 0);
if (!index.isValid ())
break;
oldHosts << index.data (TrackerRole).toString ();
}
// pull the new stats from the torrent model...
QSet<QString> newHosts;
QMap<QString,int> torrentsPerHost;
for (int row=0; ; ++row)
{
QModelIndex index = myTorrents.index (row, 0);
if (!index.isValid ())
break;
const Torrent * tor = index.data (TorrentModel::TorrentRole).value<const Torrent*> ();
QSet<QString> torrentNames;
foreach (QString host, tor->hosts ())
{
newHosts.insert (host);
torrentNames.insert (readableHostName (host));
}
foreach (QString name, torrentNames)
++torrentsPerHost[name];
}
// update the "All" row
myTrackerModel->setData (myTrackerModel->index (0,0), myTorrents.rowCount (), TorrentCountRole);
myTrackerModel->setData (myTrackerModel->index (0,0), getCountString (myTorrents.rowCount ()), TorrentCountStringRole);
// rows to update
foreach (QString host, oldHosts & newHosts)
{
const QString name = readableHostName (host);
QStandardItem * row = myTrackerModel->findItems (name).front ();
const int count = torrentsPerHost[name];
row->setData (count, TorrentCountRole);
row->setData (getCountString (count), TorrentCountStringRole);
row->setData (favicons.findFromHost (host), Qt::DecorationRole);
}
// rows to remove
foreach (QString host, oldHosts - newHosts)
{
const QString name = readableHostName (host);
QStandardItem * item = myTrackerModel->findItems (name).front ();
if (!item->data (TrackerRole).toString ().isEmpty ()) // don't remove "All"
myTrackerModel->removeRows (item->row (), 1);
}
// rows to add
bool anyAdded = false;
foreach (QString host, newHosts - oldHosts)
{
const QString name = readableHostName (host);
if (!myTrackerModel->findItems (name).isEmpty ())
continue;
// find the sorted position to add this row
int i = firstTrackerRow;
for (int n=myTrackerModel->rowCount (); i<n; ++i)
{
const QString rowName = myTrackerModel->index (i,0).data (Qt::DisplayRole).toString ();
if (rowName >= name)
break;
}
// add the row
QStandardItem * row = new QStandardItem (favicons.findFromHost (host), name);
const int count = torrentsPerHost[host];
row->setData (count, TorrentCountRole);
row->setData (getCountString (count), TorrentCountStringRole);
row->setData (favicons.findFromHost (host), Qt::DecorationRole);
row->setData (host, TrackerRole);
myTrackerModel->insertRow (i, row);
anyAdded = true;
}
if (anyAdded) // the one added might match our filter...
refreshPref (Prefs::FILTER_TRACKERS);
}
FilterBarComboBox *
FilterBar :: createTrackerCombo (QStandardItemModel * model)
{
FilterBarComboBox * c = new FilterBarComboBox (this);
FilterBarComboBoxDelegate * delegate = new FilterBarComboBoxDelegate (this, c);
c->setItemDelegate (delegate);
QStandardItem * row = new QStandardItem (tr ("All"));
row->setData ("", TrackerRole);
const int count = myTorrents.rowCount ();
row->setData (count, TorrentCountRole);
row->setData (getCountString (count), TorrentCountStringRole);
model->appendRow (row);
model->appendRow (new QStandardItem); // separator
delegate->setSeparator (model, model->index (1, 0));
c->setModel (model);
return c;
}
/****
*****
*****
*****
****/
FilterBar :: FilterBar (Prefs& prefs, TorrentModel& torrents, TorrentFilter& filter, QWidget * parent):
QWidget (parent),
myPrefs (prefs),
myTorrents (torrents),
myFilter (filter),
myRecountTimer (new QTimer (this)),
myIsBootstrapping (true)
{
QHBoxLayout * h = new QHBoxLayout (this);
const int hmargin = qMax (int (HIG::PAD), style ()->pixelMetric (QStyle::PM_LayoutHorizontalSpacing));
myCountLabel = new QLabel (this);
h->setSpacing (0);
h->setContentsMargins (2, 2, 2, 2);
h->addWidget (myCountLabel);
h->addSpacing (hmargin);
myActivityCombo = createActivityCombo ();
h->addWidget (myActivityCombo, 1);
h->addSpacing (hmargin);
myTrackerModel = new QStandardItemModel (this);
myTrackerCombo = createTrackerCombo (myTrackerModel);
h->addWidget (myTrackerCombo, 1);
h->addSpacing (hmargin*2);
myLineEdit = new QLineEdit (this);
h->addWidget (myLineEdit);
connect (myLineEdit, SIGNAL (textChanged (QString)), this, SLOT (onTextChanged (QString)));
QPushButton * p = new QPushButton (this);
QIcon icon = QIcon::fromTheme ("edit-clear", style ()->standardIcon (QStyle::SP_DialogCloseButton));
int iconSize = style ()->pixelMetric (QStyle::PM_SmallIconSize);
p->setIconSize (QSize (iconSize, iconSize));
p->setIcon (icon);
p->setFlat (true);
h->addWidget (p);
connect (p, SIGNAL (clicked (bool)), myLineEdit, SLOT (clear ()));
// listen for changes from the other players
connect (&myPrefs, SIGNAL (changed (int)), this, SLOT (refreshPref (int)));
connect (myActivityCombo, SIGNAL (currentIndexChanged (int)), this, SLOT (onActivityIndexChanged (int)));
connect (myTrackerCombo, SIGNAL (currentIndexChanged (int)), this, SLOT (onTrackerIndexChanged (int)));
connect (&myFilter, SIGNAL (rowsInserted (const QModelIndex&,int,int)), this, SLOT (refreshCountLabel ()));
connect (&myFilter, SIGNAL (rowsRemoved (const QModelIndex&,int,int)), this, SLOT (refreshCountLabel ()));
connect (&myTorrents, SIGNAL (modelReset ()), this, SLOT (onTorrentModelReset ()));
connect (&myTorrents, SIGNAL (rowsInserted (const QModelIndex&,int,int)), this, SLOT (onTorrentModelRowsInserted (const QModelIndex&,int,int)));
connect (&myTorrents, SIGNAL (rowsRemoved (const QModelIndex&,int,int)), this, SLOT (onTorrentModelRowsRemoved (const QModelIndex&,int,int)));
connect (&myTorrents, SIGNAL (dataChanged (const QModelIndex&,const QModelIndex&)), this, SLOT (onTorrentModelDataChanged (const QModelIndex&,const QModelIndex&)));
connect (myRecountTimer, SIGNAL (timeout ()), this, SLOT (recount ()));
recountSoon ();
refreshTrackers ();
refreshCountLabel ();
myIsBootstrapping = false;
// initialize our state
QList<int> initKeys;
initKeys << Prefs :: FILTER_MODE
<< Prefs :: FILTER_TRACKERS;
foreach (int key, initKeys)
refreshPref (key);
}
FilterBar :: ~FilterBar ()
{
delete myRecountTimer;
}
/***
****
***/
void
FilterBar :: refreshPref (int key)
{
switch (key)
{
case Prefs :: FILTER_MODE:
{
const FilterMode m = myPrefs.get<FilterMode> (key);
QAbstractItemModel * model = myActivityCombo->model ();
QModelIndexList indices = model->match (model->index (0,0), ActivityRole, m.mode ());
myActivityCombo->setCurrentIndex (indices.isEmpty () ? 0 : indices.first ().row ());
break;
}
case Prefs :: FILTER_TRACKERS:
{
const QString tracker = myPrefs.getString (key);
const QString name = readableHostName (tracker);
QList<QStandardItem*> rows = myTrackerModel->findItems (name);
if (!rows.isEmpty ())
{
myTrackerCombo->setCurrentIndex (rows.front ()->row ());
}
else // hm, we don't seem to have this tracker anymore...
{
const bool isBootstrapping = myTrackerModel->rowCount () <= 2;
if (!isBootstrapping)
myPrefs.set (key, "");
}
break;
}
}
}
void
FilterBar :: onTextChanged (const QString& str)
{
if (!myIsBootstrapping)
myPrefs.set (Prefs::FILTER_TEXT, str.trimmed ());
}
void
FilterBar :: onTrackerIndexChanged (int i)
{
if (!myIsBootstrapping)
{
QString str;
const bool isTracker = !myTrackerCombo->itemData (i,TrackerRole).toString ().isEmpty ();
if (!isTracker) // show all
{
str = "";
}
else
{
str = myTrackerCombo->itemData (i,TrackerRole).toString ();
const int pos = str.lastIndexOf ('.');
if (pos >= 0)
str.truncate (pos+1);
}
myPrefs.set (Prefs::FILTER_TRACKERS, str);
}
}
void
FilterBar :: onActivityIndexChanged (int i)
{
if (!myIsBootstrapping)
{
const FilterMode mode = myActivityCombo->itemData (i, ActivityRole).toInt ();
myPrefs.set (Prefs::FILTER_MODE, mode);
}
}
/***
****
***/
void FilterBar :: onTorrentModelReset () { recountSoon (); }
void FilterBar :: onTorrentModelRowsInserted (const QModelIndex&, int, int) { recountSoon (); }
void FilterBar :: onTorrentModelRowsRemoved (const QModelIndex&, int, int) { recountSoon (); }
void FilterBar :: onTorrentModelDataChanged (const QModelIndex&, const QModelIndex&) { recountSoon (); }
void
FilterBar :: recountSoon ()
{
if (!myRecountTimer->isActive ())
{
myRecountTimer->setSingleShot (true);
myRecountTimer->start (800);
}
}
void
FilterBar :: recount ()
{
QAbstractItemModel * model = myActivityCombo->model ();
int torrentsPerMode[FilterMode::NUM_MODES] = { };
myFilter.countTorrentsPerMode (torrentsPerMode);
for (int row=0, n=model->rowCount (); row<n; ++row)
{
QModelIndex index = model->index (row, 0);
const int mode = index.data (ActivityRole).toInt ();
const int count = torrentsPerMode [mode];
model->setData (index, count, TorrentCountRole);
model->setData (index, getCountString (count), TorrentCountStringRole);
}
refreshTrackers ();
refreshCountLabel ();
}
QString
FilterBar :: getCountString (int n) const
{
return QString ("%L1").arg (n);
}
void
FilterBar :: refreshCountLabel ()
{
const int visibleCount = myFilter.rowCount ();
const int trackerCount = myTrackerCombo->currentCount ();
const int activityCount = myActivityCombo->currentCount ();
if ((visibleCount == activityCount) || (visibleCount == trackerCount))
myCountLabel->setText (tr("Show:"));
else
myCountLabel->setText (tr("Show %Ln of:", 0, visibleCount));
}
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