本文整理汇总了C++中playlist_ptr::isNull方法的典型用法代码示例。如果您正苦于以下问题：C++ playlist_ptr::isNull方法的具体用法？C++ playlist_ptr::isNull怎么用？C++ playlist_ptr::isNull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playlist_ptr的用法示例。
在下文中一共展示了playlist_ptr::isNull方法的1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
SourceTreeView::setupMenus()
{
m_playlistMenu.clear();
m_roPlaylistMenu.clear();
m_latchMenu.clear();
m_privacyMenu.clear();
bool readonly = true;
SourcesModel::RowType type = ( SourcesModel::RowType )model()->data( m_contextMenuIndex, SourcesModel::SourceTreeItemTypeRole ).toInt();
if ( type == SourcesModel::StaticPlaylist || type == SourcesModel::AutomaticPlaylist || type == SourcesModel::Station )
{
const PlaylistItem* item = itemFromIndex< PlaylistItem >( m_contextMenuIndex );
const playlist_ptr playlist = item->playlist();
if ( !playlist.isNull() )
{
readonly = !playlist->author()->isLocal();
}
}
QAction* latchOnAction = ActionCollection::instance()->getAction( "latchOn" );
m_latchMenu.addAction( latchOnAction );
m_privacyMenu.addAction( ActionCollection::instance()->getAction( "togglePrivacy" ) );
if ( type == SourcesModel::Collection )
{
SourceItem* item = itemFromIndex< SourceItem >( m_contextMenuIndex );
source_ptr source = item->source();
if ( !source.isNull() )
{
if ( m_latchManager->isLatched( source ) )
{
QAction *latchOffAction = ActionCollection::instance()->getAction( "latchOff" );
m_latchMenu.addAction( latchOffAction );
connect( latchOffAction, SIGNAL( triggered() ), SLOT( latchOff() ) );
m_latchMenu.addSeparator();
QAction *latchRealtimeAction = ActionCollection::instance()->getAction( "realtimeFollowingAlong" );
latchRealtimeAction->setChecked( source->playlistInterface()->latchMode() == Tomahawk::PlaylistModes::RealTime );
m_latchMenu.addAction( latchRealtimeAction );
connect( latchRealtimeAction, SIGNAL( toggled( bool ) ), SLOT( latchModeToggled( bool ) ) );
}
}
}
QAction *loadPlaylistAction = ActionCollection::instance()->getAction( "loadPlaylist" );
m_playlistMenu.addAction( loadPlaylistAction );
QAction *renamePlaylistAction = ActionCollection::instance()->getAction( "renamePlaylist" );
m_playlistMenu.addAction( renamePlaylistAction );
m_playlistMenu.addSeparator();
QAction *copyPlaylistAction = m_playlistMenu.addAction( tr( "&Copy Link" ) );
QAction *deletePlaylistAction = m_playlistMenu.addAction( tr( "&Delete %1" ).arg( SourcesModel::rowTypeToString( type ) ) );
QString addToText;
if ( type == SourcesModel::StaticPlaylist )
addToText = tr( "Add to my Playlists" );
if ( type == SourcesModel::AutomaticPlaylist )
addToText = tr( "Add to my Automatic Playlists" );
else if ( type == SourcesModel::Station )
addToText = tr( "Add to my Stations" );
QAction *addToLocalAction = m_roPlaylistMenu.addAction( addToText );
m_roPlaylistMenu.addAction( copyPlaylistAction );
deletePlaylistAction->setEnabled( !readonly );
renamePlaylistAction->setEnabled( !readonly );
addToLocalAction->setEnabled( readonly );
// Handle any custom actions registered for playlists
if ( type == SourcesModel::StaticPlaylist && !readonly &&
!ActionCollection::instance()->getAction( ActionCollection::LocalPlaylists ).isEmpty() )
{
m_playlistMenu.addSeparator();
const PlaylistItem* item = itemFromIndex< PlaylistItem >( m_contextMenuIndex );
const playlist_ptr playlist = item->playlist();
foreach ( QAction* action, ActionCollection::instance()->getAction( ActionCollection::LocalPlaylists ) )
{
if ( QObject* notifier = ActionCollection::instance()->actionNotifier( action ) )
{
QMetaObject::invokeMethod( notifier, "aboutToShow", Qt::DirectConnection, Q_ARG( QAction*, action ), Q_ARG( Tomahawk::playlist_ptr, playlist ) );
}
action->setProperty( "payload", QVariant::fromValue< playlist_ptr >( playlist ) );
m_playlistMenu.addAction( action );
}