void DisplayGroupRenderer::setDisplayGroup( DisplayGroupPtr displayGroup )
{
QDeclarativeEngine& engine = renderContext_->getQmlEngine();
// Update the scene with the new information
engine.rootContext()->setContextProperty( "displaygroup",
displayGroup.get( ));
if( !displayGroupItem_ )
createDisplayGroupQmlItem();
if( hasBackgroundChanged( *displayGroup ))
{
setBackground( displayGroup->getBackgroundContent( ));
adjustBackgroundTo( *displayGroup );
}
ContentWindowPtrs contentWindows = displayGroup->getContentWindows();
// Update windows, creating new ones if needed
QSet<QUuid> updatedWindows;
int stackingOrder = BACKGROUND_STACKING_ORDER + 1;
BOOST_FOREACH( ContentWindowPtr window, contentWindows )
{
const QUuid& id = window->getID();
updatedWindows.insert( id );
if( windowItems_.contains( id ))
windowItems_[id]->update( window );
else
createWindowQmlItem( window );
windowItems_[id]->setStackingOrder( stackingOrder++ );
}
// Remove old windows
QmlWindows::iterator it = windowItems_.begin();
while( it != windowItems_.end( ))
{
if( updatedWindows.contains( it.key( )))
++it;
else
{
emit windowRemoved( *it );
it = windowItems_.erase( it );
}
}
// Retain the new DisplayGroup
displayGroup_ = displayGroup;
}
void DisplayGroupRenderer::setDisplayGroup(DisplayGroupPtr displayGroup)
{
_qmlContext->setContextProperty("displaygroup", displayGroup.get());
_updateWindowItems(*displayGroup);
_displayGroup = std::move(displayGroup);
}