# Layouts

This page is used to control various Swing > Layouts options.

## Default layout manager

This preference controls the default layout manager that Swing Designer uses for any new frame or panel. The default is to use the implicit layout manager already in effect for each container (e.g., BorderLayout for JFrames and FlowLayout for JPanels).

## Layouts to use

This preference controls the layouts which can be selected in the default layout manager and also which layouts are available in the Design editor page.

If a layout is unchecked that is currently set as default layout, the selection in the default layout manager control is cleared, with the implict layout being used as default again.

## Containers automatically use layout manager type of parent

This preference determines whether new panels will use the layout manager of their parent’s by default.

## Create variable for Layout using pattern

This preference determines what pattern will be used to generate layout variables. The following styles are supported:

- ${layoutAcronym}_${containerName} - gbl_panel

- ${layoutAcronym}${containerName-cap} - gblPanel

- ${containerName}${layoutClassName} - panelGridBagLayout

- ${dataDefaultName} - gridBagLayout_1