119 lines
3.5 KiB
Java
119 lines
3.5 KiB
Java
/* Dimension2D.java -- abstraction of a dimension
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Copyright (C) 1999, 2000, 2002 Free Software Foundation
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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., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 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.geom;
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/**
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* This stores a dimension in 2-dimensional space - a width (along the x-axis)
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* and height (along the y-axis). The storage is left to subclasses.
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*
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* @author Per Bothner (bothner@cygnus.com)
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* @author Eric Blake (ebb9@email.byu.edu)
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* @since 1.2
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* @status updated to 1.4
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*/
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public abstract class Dimension2D implements Cloneable
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{
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/**
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* The default constructor.
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*/
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protected Dimension2D()
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{
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}
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/**
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* Get the width of this dimension. A negative result, while legal, is
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* undefined in meaning.
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*
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* @return the width
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*/
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public abstract double getWidth();
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/**
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* Get the height of this dimension. A negative result, while legal, is
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* undefined in meaning.
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*
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* @return the height
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*/
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public abstract double getHeight();
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/**
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* Set the size of this dimension to the requested values. Loss of precision
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* may occur.
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*
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* @param w the new width
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* @param h the new height
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*/
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public abstract void setSize(double w, double h);
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/**
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* Set the size of this dimension to the requested value. Loss of precision
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* may occur.
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*
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* @param d the dimension containing the new values
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*
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* @throws NullPointerException if d is null
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*/
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public void setSize(Dimension2D d)
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{
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setSize(d.getWidth(), d.getHeight());
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}
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/**
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* Create a new dimension of the same run-time type with the same contents
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* as this one.
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*
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* @return the clone
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*
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* @exception OutOfMemoryError If there is not enough memory available.
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*
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* @since 1.2
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*/
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public Object clone()
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{
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try
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{
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return super.clone();
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}
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catch (CloneNotSupportedException e)
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{
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throw (Error) new InternalError().initCause(e); // Impossible
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}
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}
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} // class Dimension2D
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