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transmission/qt/TorrentDelegateMin.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 <QApplication>
#include <QBrush>
#include <QFont>
#include <QFontMetrics>
#include <QIcon>
#include <QModelIndex>
#include <QPainter>
#include <QPixmap>
#include <QPixmapCache>
#include <QStyleOptionProgressBar>
#include <libtransmission/transmission.h>
#include <libtransmission/utils.h>
#include "Torrent.h"
#include "TorrentDelegateMin.h"
#include "TorrentModel.h"
#include "Utils.h"
enum
{
GUI_PAD = 6,
BAR_WIDTH = 50,
BAR_HEIGHT = 16,
LINE_SPACING = 4
};
/***
****
**** +---------+-----------------------------------------------+
**** | Icon | Title shortStatusString [Progressbar] |
**** +-------- +-----------------------------------------------+
****
***/
namespace
{
class ItemLayout
{
private:
QString myNameText;
QString myStatusText;
public:
QFont nameFont;
QFont statusFont;
QRect iconRect;
QRect emblemRect;
QRect nameRect;
QRect statusRect;
QRect barRect;
public:
ItemLayout(const QString& nameText, const QString& statusText, const QIcon& emblemIcon,
const QFont& baseFont, Qt::LayoutDirection direction, const QPoint& topLeft, int width);
QSize size () const
{
return (iconRect | nameRect | statusRect | barRect).size ();
}
QString nameText () const { return elidedText (nameFont, myNameText, nameRect.width ()); }
QString statusText () const { return myStatusText; }
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 QIcon& emblemIcon,
const QFont& baseFont, Qt::LayoutDirection direction, const QPoint& topLeft, int width):
myNameText (nameText),
myStatusText (statusText),
nameFont (baseFont),
statusFont (baseFont)
{
const QStyle * style (qApp->style ());
const int iconSize (style->pixelMetric (QStyle::PM_SmallIconSize));
const QFontMetrics nameFM (nameFont);
const QSize nameSize (nameFM.size (0, myNameText));
statusFont.setPointSize (static_cast<int> (statusFont.pointSize () * 0.85));
const QFontMetrics statusFM (statusFont);
const QSize statusSize (statusFM.size (0, myStatusText));
QRect baseRect (topLeft, QSize (width, qMax (iconSize, qMax (nameSize.height (), qMax (statusSize.height (), static_cast<int>(BAR_HEIGHT))))));
iconRect = style->alignedRect (direction, Qt::AlignLeft | Qt::AlignVCenter, QSize (iconSize, iconSize), baseRect);
emblemRect = style->alignedRect (direction, Qt::AlignRight | Qt::AlignBottom,
emblemIcon.actualSize (iconRect.size () / 2, QIcon::Normal, QIcon::On),
iconRect);
barRect = style->alignedRect (direction, Qt::AlignRight | Qt::AlignVCenter, QSize (BAR_WIDTH, BAR_HEIGHT), baseRect);
Utils::narrowRect (baseRect, iconRect.width () + GUI_PAD, barRect.width () + GUI_PAD, direction);
statusRect = style->alignedRect (direction, Qt::AlignRight | Qt::AlignVCenter, QSize (statusSize.width (), baseRect.height ()), baseRect);
Utils::narrowRect (baseRect, 0, statusRect.width () + GUI_PAD, direction);
nameRect = baseRect;
}
}
QSize
TorrentDelegateMin::sizeHint (const QStyleOptionViewItem & option,
const Torrent & tor) const
{
const bool isMagnet (!tor.hasMetadata());
const QSize m (margin (*qApp->style()));
const ItemLayout layout (isMagnet ? progressString (tor) : tor.name(), shortStatusString (tor), QIcon (),
option.font, option.direction, QPoint (0, 0), option.rect.width () - m.width () * 2);
return layout.size () + m * 2;
}
void
TorrentDelegateMin::drawTorrent (QPainter * painter,
const QStyleOptionViewItem & option,
const Torrent & tor) const
{
const QStyle * style (qApp->style());
const bool isPaused (tor.isPaused());
const bool isMagnet (!tor.hasMetadata());
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 (isMagnet ? progressString (tor) : tor.name(), shortStatusString (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 ());
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;
myProgressBarStyle->text = QString::fromLatin1 ("%1%").arg (static_cast<int> (tr_truncd (100.0 * tor.percentDone (), 0)));
myProgressBarStyle->textVisible = true;
myProgressBarStyle->textAlignment = Qt::AlignCenter;
setProgressBarPercentDone (option, tor);
style->drawControl (QStyle::CE_ProgressBar, myProgressBarStyle, painter);
painter->restore();
}