LayoutManager2

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java.awt
Interface LayoutManager2

All Superinterfaces:: LayoutManager

All Known Implementing Classes:: BorderLayout, CardLayout, GridBagLayout

public interface LayoutManager2
extends LayoutManager

Layout manager for laying out containers based on contraints. The constraints control how the layout will proceed.

Since:: 1.0

Method Summary

void addLayoutComponent(Component component, java.lang.Object constraints)
          Adds the specified component to the layout, with the specified constraints object.

float getLayoutAlignmentX(Container target)
          Returns the preferred X axis alignment for the specified target container.

float getLayoutAlignmentY(Container target)
          Returns the preferred Y axis alignment for the specified target container.

void invalidateLayout(Container target)
          Forces the layout manager to purge any cached information about the layout of the target container.

Dimension maximumLayoutSize(Container target)
          Determines the maximum size of the specified target container.

Methods inherited from interface java.awt.LayoutManager

addLayoutComponent, layoutContainer, minimumLayoutSize, preferredLayoutSize, removeLayoutComponent

Method Detail

addLayoutComponent

public void addLayoutComponent(Component component,
                               java.lang.Object constraints)

Adds the specified component to the layout, with the specified constraints object.

maximumLayoutSize

public Dimension maximumLayoutSize(Container target)

Determines the maximum size of the specified target container.

getLayoutAlignmentX

public float getLayoutAlignmentX(Container target)

Returns the preferred X axis alignment for the specified target container. This value will range from 0 to 1 where 0 is alignment closest to the origin, 0.5 is centered, and 1 is aligned furthest from the origin.

getLayoutAlignmentY

public float getLayoutAlignmentY(Container target)

Returns the preferred Y axis alignment for the specified target container. This value will range from 0 to 1 where 0 is alignment closest to the origin, 0.5 is centered, and 1 is aligned furthest from the origin.

invalidateLayout

public void invalidateLayout(Container target)

Forces the layout manager to purge any cached information about the layout of the target container. This will force it to be recalculated.