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Interface java.awt.LayoutManager2

public interface LayoutManager2

extends LayoutManager

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.

See Also:

LayoutManager, Container

addLayoutComponent(Component, Object)

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

getLayoutAlignmentX(Container)

Returns the alignment along the x axis.

getLayoutAlignmentY(Container)

Returns the alignment along the y axis.

invalidateLayout(Container)

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

maximumLayoutSize(Container)

Returns the maximum size of this component.

 public abstract void addLayoutComponent(Component comp,
                                         Object constraints)

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

Parameters:

comp - the component to be added

constraints - where/how the component is added to the layout.

 public abstract Dimension maximumLayoutSize(Container target)

Returns the maximum size of this component.

See Also:

getMinimumSize, getPreferredSize, LayoutManager

 public abstract float getLayoutAlignmentX(Container target)

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 abstract float getLayoutAlignmentY(Container target)

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 abstract void invalidateLayout(Container target)

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

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