question: public MainLayoutPanel ( Layout initialLayout , boolean revealOption , Window parent ) { this . revealOption = revealOption ; this . parent = parent ; layoutParameterReveal = new DropDownTriangle ( UpDirection . LEFT , false , "Settings" , "Settings" , parent ) ; layoutCb . setSelectedItem ( initialLayout . getDescription ( ) ) ; layoutPanel = panelMap . get ( initialLayout . getDescription ( ) ) ; layoutPanel . setNeuronLayout ( initialLayout ) ; initializeLayout ( ) ; addListeners ( ) ; }
target:  Creates the main layout panel.