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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/java/awt/LayoutManager2.java | |
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Diffstat (limited to 'libjava/classpath/java/awt/LayoutManager2.java')
-rw-r--r-- | libjava/classpath/java/awt/LayoutManager2.java | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/libjava/classpath/java/awt/LayoutManager2.java b/libjava/classpath/java/awt/LayoutManager2.java new file mode 100644 index 000000000..45fc5430f --- /dev/null +++ b/libjava/classpath/java/awt/LayoutManager2.java @@ -0,0 +1,100 @@ +/* LayoutManager2.java -- enhanced layout manager + Copyright (C) 1999, 2002 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.awt; + +/** + * Layout manager for laying out containers based on contraints. The + * constraints control how the layout will proceed. + * + * @author Aaron M. Renn (arenn@urbanophile.com) + * @see LayoutManager + * @see Container + * @since 1.0 + * @status updated to 1.4 + */ +public interface LayoutManager2 extends LayoutManager +{ + /** + * Adds the specified component to the layout, with the specified + * constraints object. + * + * @param component the component to add + * @param constraints the constraints to satisfy + */ + void addLayoutComponent(Component component, Object constraints); + + /** + * Determines the maximum size of the specified target container. + * + * @param target the container to lay out + * @return the maximum size of the container + * @see Component#getMaximumSize() + */ + Dimension maximumLayoutSize(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. + * + * @param target the target container + * @return the x-axis alignment preference + */ + float getLayoutAlignmentX(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. + * + * @param target the target container + * @return the y-axis alignment preference + */ + float getLayoutAlignmentY(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. + * + * @param target the target container + */ + void invalidateLayout(Container target); +} // interface LayoutManager2 |