public abstract interface LayoutManager2
implements LayoutManager

Defines an interface for classes that know how to layout Containers based on a layout constraints object. This interface extends the LayoutManager interface to deal with layouts explicitly in terms of constraint objects that specify how and where components should be added to the layout.

This minimal extension to LayoutManager is intended for tool providers who wish to the creation of constraint-based layouts. It does not yet provide full, general support for custom constraint-based layout managers.

public void addLayoutComponent(Component, Object)

Adds the specified component to the layout, using the specified constraint object.

Component comp: the component to be added

Object constraints: where/how the component is added to the layout.

public float getLayoutAlignmentX(Container)

Returns the alignment along the x axis. This specifies how the component would like to be aligned relative to other components. The value should be a number between 0 and 1 where 0 represents alignment along the origin, 1 is aligned the furthest away from the origin, 0.5 is centered, etc.

public float getLayoutAlignmentY(Container)

Returns the alignment along the y axis. This specifies how the component would like to be aligned relative to other components. The value should be a number between 0 and 1 where 0 represents alignment along the origin, 1 is aligned the furthest away from the origin, 0.5 is centered, etc.

public void invalidateLayout(Container)

Invalidates the layout, indicating that if the layout manager has cached information it should be discarded.

public Dimension maximumLayoutSize(Container)

Calculates the maximum size dimensions for the specified container, given the components it contains.