net.miginfocom.layout

Class LayoutCallback

public abstract class LayoutCallback extends Object

A class to extend if you want to provide more control over where a component is placed or the size of it.

Note! Returned arrays from this class will never be altered. This means that caching of arrays in these methods is OK.

Method Summary
voidcorrectBounds(ComponentWrapper comp)
A last minute change of the bounds.
UnitValue[]getPosition(ComponentWrapper comp)
Returns a position similar to the "pos" the component constraint.
BoundSize[]getSize(ComponentWrapper comp)
Returns a size similar to the "width" and "height" in the component constraint.

Method Detail

correctBounds

public void correctBounds(ComponentWrapper comp)
A last minute change of the bounds. The bound for the layout cycle has been set and you can correct there after any set of rules you like.

Parameters: comp The component wrapper that holds the actual component (JComponent is Swing and Control in SWT).

getPosition

public UnitValue[] getPosition(ComponentWrapper comp)
Returns a position similar to the "pos" the component constraint.

Parameters: comp The component wrapper that holds the actual component (JComponent is Swing and Control in SWT). Should not be altered.

Returns: The [x, y, x2, y2] as explained in the documentation for "pos". If null is returned nothing is done and this is the default.

See Also: UnitValue ConstraintParser

getSize

public BoundSize[] getSize(ComponentWrapper comp)
Returns a size similar to the "width" and "height" in the component constraint.

Parameters: comp The component wrapper that holds the actual component (JComponent is Swing and Control in SWT). Should not be altered.

Returns: The [width, height] as explained in the documentation for "width" and "height". If null is returned nothing is done and this is the default.

See Also: BoundSize ConstraintParser