109 lines
3.6 KiB
Java
109 lines
3.6 KiB
Java
/* LayoutManager2.java -- Enhanced layout manager.
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Copyright (C) 1999 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.awt;
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/**
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* Layout manager for laying out containers based on contraints.
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*
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* @author Aaron M. Renn (arenn@urbanophile.com)
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*/
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public interface LayoutManager2 extends LayoutManager
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{
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/**
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* Adds the specified component to the layout, with the specified
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* constraint object.
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*
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* @param component The component to add.
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* @param constraint The constraint object.
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*/
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public abstract void
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addLayoutComponent(Component component, Object contraint);
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/*************************************************************************/
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/**
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* Determines the minimum size of the specified target container.
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*
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* @param target The target container.
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*/
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public abstract Dimension
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maximumLayoutSize(Container target);
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/*************************************************************************/
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/**
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* Returns the preferred X axis alignment for the specified target
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* container. This value will range from 0 to 1 where 0 is alignment
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* closest to the origin, 0.5 is centered, and 1 is aligned furthest
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* from the origin.
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*
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* @param target The target container.
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*/
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public abstract float
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getLayoutAlignmentX(Container target);
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/*************************************************************************/
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/**
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* Returns the preferred Y axis alignment for the specified target
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* container. This value will range from 0 to 1 where 0 is alignment
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* closest to the origin, 0.5 is centered, and 1 is aligned furthest
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* from the origin.
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*
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* @param target The target container.
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*/
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public abstract float
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getLayoutAlignmentY(Container target);
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/*************************************************************************/
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/**
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* Forces the layout manager to purge any cached information about
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* the layout of the target container. This will force it to be
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* recalculated.
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*
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* @param target The target container.
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*/
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public abstract void
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invalidateLayout(Container target);
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} // interface LayoutManager2
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