DockPanel

Edge-docking layout container arranging child widgets along outer boundaries (left, right, top, bottom).

Overview

DockPanel sequentially lays out each child along one of the outer edges defined by DockSide. Each docked child consumes space along that side, shrinking the remaining rectangular area for subsequent children.

Last Child Fill

When lastChildFill is true (default), the final child widget occupies the entire remaining interior area. For complex IDE docking (tear-off windows, tabs, split docking zones), use DockingRoot and DockingManager instead of DockPanel.

Application Shell Layout

DockPanel shell = new DockPanel();
shell.addChild(toolbar, DockSide.TOP);
shell.addChild(sidebar, DockSide.LEFT);
shell.addChild(mainView);
shell.lastChildFill(true);

Related links

• Box
• PanelWidget
• SplitPanel

API

DockPanel::addChild(Widget, DockSide)

Add Docked Child

Adds a child widget docked to a specific edge.

Parameter	Type	Description
child	Widget	the child widget
dockSide	DockSide	the edge to dock the child against

DockPanel::dockSide(Widget, DockSide)

Set Dock Side

Gets or sets the dock side for a child widget.

Parameter	Type	Description
child	Widget	the child widget
dockSide	DockSide	the edge to dock the child against

Returns DockPanel: this widget for fluent configuration.

DockPanel::lastChildFill(boolean)

Set Last Child Fill

Controls whether the last child expands to fill all remaining interior space.

Parameter	Type	Description
lastChildFill	boolean	true to make the last child fill remaining area

Returns DockPanel: this widget for fluent configuration.