本文整理汇总了C++中TreeModelItem::query方法的典型用法代码示例。如果您正苦于以下问题：C++ TreeModelItem::query方法的具体用法？C++ TreeModelItem::query怎么用？C++ TreeModelItem::query使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TreeModelItem的用法示例。
在下文中一共展示了TreeModelItem::query方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: if
void
ArtistView::currentChanged( const QModelIndex& current, const QModelIndex& previous )
{
QTreeView::currentChanged( current, previous );
if ( !m_updateContextView )
return;
TreeModelItem* item = m_model->itemFromIndex( m_proxyModel->mapToSource( current ) );
if ( item )
{
if ( !item->result().isNull() )
ViewManager::instance()->context()->setQuery( item->result()->toQuery() );
else if ( !item->artist().isNull() )
ViewManager::instance()->context()->setArtist( item->artist() );
else if ( !item->album().isNull() )
ViewManager::instance()->context()->setAlbum( item->album() );
else if ( !item->query().isNull() )
ViewManager::instance()->context()->setQuery( item->query() );
}
}示例2: if
void
TreeItemDelegate::paint( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const
{
TreeModelItem* item = m_model->sourceModel()->itemFromIndex( m_model->mapToSource( index ) );
if ( !item )
return;
QString text;
if ( !item->artist().isNull() )
{
text = item->artist()->name();
}
else if ( !item->album().isNull() )
{
text = item->album()->name();
}
else if ( !item->result().isNull() || !item->query().isNull() )
{
float opacity = item->result().isNull() ? 0.0 : item->result()->score();
opacity = qMax( (float)0.3, opacity );
QColor textColor = TomahawkUtils::alphaBlend( option.palette.color( QPalette::Foreground ), option.palette.color( QPalette::Background ), opacity );
{
QStyleOptionViewItemV4 o = option;
initStyleOption( &o, QModelIndex() );
painter->save();
o.palette.setColor( QPalette::Text, textColor );
if ( o.state & QStyle::State_Selected && o.state & QStyle::State_Active )
{
o.palette.setColor( QPalette::Text, o.palette.color( QPalette::HighlightedText ) );
}
if ( item->isPlaying() )
{
o.palette.setColor( QPalette::Highlight, o.palette.color( QPalette::Mid ) );
if ( o.state & QStyle::State_Selected )
o.palette.setColor( QPalette::Text, textColor );
o.state |= QStyle::State_Selected;
}
int oldX = 0;
if ( m_view->header()->visualIndex( index.column() ) == 0 )
{
oldX = o.rect.x();
o.rect.setX( 0 );
}
qApp->style()->drawControl( QStyle::CE_ItemViewItem, &o, painter );
if ( oldX > 0 )
o.rect.setX( oldX );
{
QRect r = o.rect.adjusted( 3, 0, 0, 0 );
// Paint Now Playing Speaker Icon
if ( item->isPlaying() && m_view->header()->visualIndex( index.column() ) == 0 )
{
r.adjust( 0, 0, 0, -3 );
painter->drawPixmap( r.adjusted( 3, 1, 18 - r.width(), 1 ), m_nowPlayingIcon );
r.adjust( 25, 0, 0, 3 );
}
painter->setPen( o.palette.text().color() );
QTextOption to( Qt::AlignVCenter );
QString text = painter->fontMetrics().elidedText( index.data().toString(), Qt::ElideRight, r.width() - 3 );
painter->drawText( r.adjusted( 0, 1, 0, 0 ), text, to );
}
painter->restore();
}
return;
}
else
return;
if ( text.trimmed().isEmpty() )
text = tr( "Unknown" );
QStyleOptionViewItemV4 opt = option;
initStyleOption( &opt, QModelIndex() );
qApp->style()->drawControl( QStyle::CE_ItemViewItem, &opt, painter );
if ( option.state & QStyle::State_Selected )
{
opt.palette.setColor( QPalette::Text, opt.palette.color( QPalette::HighlightedText ) );
}
if ( index.column() > 0 )
return;
painter->save();
painter->setRenderHint( QPainter::Antialiasing );
painter->setPen( opt.palette.color( QPalette::Text ) );
QRect r = option.rect.adjusted( 4, 4, -option.rect.width() + option.rect.height() - 4, -4 );
// painter->drawPixmap( r, QPixmap( RESPATH "images/cover-shadow.png" ) );
QPixmap cover;
//.........这里部分代码省略.........
示例3: QVariant
QVariant
TreeModel::data( const QModelIndex& index, int role ) const
{
TreeModelItem* entry = itemFromIndex( index );
if ( !entry )
return QVariant();
if ( role == Qt::SizeHintRole )
{
if ( !entry->result().isNull() || !entry->query().isNull() )
{
return QSize( 128, 20 );
}
else if ( !entry->album().isNull() )
{
return QSize( 128, 32 );
}
else if ( !entry->artist().isNull() )
{
return QSize( 128, 44 );
}
return QSize( 128, 0 );
}
if ( role != Qt::DisplayRole ) // && role != Qt::ToolTipRole )
return QVariant();
if ( !entry->artist().isNull() && index.column() == Name )
{
return entry->artist()->name();
}
else if ( !entry->album().isNull() && index.column() == Name )
{
return entry->album()->name();
}
else if ( !entry->result().isNull() )
{
const result_ptr& result = entry->result();
unsigned int discnumber = 0;
if ( !entry->query().isNull() )
discnumber = entry->query()->discnumber();
if ( discnumber == 0 )
discnumber = result->discnumber();
unsigned int albumpos = 0;
if ( !entry->query().isNull() )
albumpos = entry->query()->albumpos();
if ( albumpos == 0 )
albumpos = result->albumpos();
switch( index.column() )
{
case Name:
return QString( "%1%2%3" ).arg( discnumber > 0 ? QString( "%1." ).arg( discnumber ) : QString() )
.arg( albumpos > 0 ? QString( "%1. ").arg( albumpos ) : QString() )
.arg( result->track() );
case Duration:
return TomahawkUtils::timeToString( result->duration() );
case Bitrate:
if ( result->bitrate() > 0 )
return result->bitrate();
break;
case Age:
return TomahawkUtils::ageToString( QDateTime::fromTime_t( result->modificationTime() ) );
case Year:
if ( result->year() != 0 )
return result->year();
break;
case Filesize:
return TomahawkUtils::filesizeToString( result->size() );
case Origin:
return result->friendlySource();
case AlbumPosition:
return result->albumpos();
case Composer:
if ( !result->composer().isNull() )
return result->composer()->name();
break;
default:
return QVariant();
}
}
else if ( !entry->query().isNull() )
{
const query_ptr& query = entry->query();
switch( index.column() )
{
case Name:
return QString( "%1%2%3" ).arg( query->discnumber() > 0 ? QString( "%1." ).arg( query->discnumber() ) : QString() )
.arg( query->albumpos() > 0 ? QString( "%1. ").arg( query->albumpos() ) : QString() )
//.........这里部分代码省略.........