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Viewing changes to src/org/jgraph/util/RectUtils.java

  • Committer: Bazaar Package Importer
  • Author(s): gregor herrmann
  • Date: 2008-03-17 20:28:08 UTC
  • mfrom: (1.1.4 upstream)
  • Revision ID: james.westby@ubuntu.com-20080317202808-jol9tcnnn9lu0gc3
Tags: 5.12.0.4.dfsg-1
* New upstream release.
* Remove debian/dirs and create /usr/share/java directly from
  debian/rules.

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src/org/jgraph/util/RectUtils.java
 
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/*
 
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 * $Id: RectUtils.java,v 1.2 2008/02/28 14:38:48 david Exp $
 
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 *
 
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 * Copyright (c) 2008 Gaudenz Alder
 
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 *
 
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 */
 
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package org.jgraph.util;
 
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import java.awt.geom.Rectangle2D;
 
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public class RectUtils {
 
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        /**
 
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         * Unions the pair of source <code>Rectangle2D</code> objects and puts the
 
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         * result into the returned <code>Rectangle2D</code> object. This method
 
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         * extends the Rectangle2D version by checking for null parameters, the
 
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         * returned value will also be <code>null</code> if the two input
 
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         * rectangles are <code>null</code>
 
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         * 
 
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         * @param src1
 
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         *            the first of a pair of <code>Rectangle2D</code> objects to
 
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         *            be combined with each other
 
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         * @param src2
 
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         *            the second of a pair of <code>Rectangle2D</code> objects to
 
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         *            be combined with each other
 
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         * 
 
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         */
 
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        public static Rectangle2D union(Rectangle2D src1, Rectangle2D src2) {
 
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                Rectangle2D result = null;
 
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                if (src1 == null && src2 == null) {
 
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                        result = null;
 
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                } else if (src1 != null && src2 != null) {
 
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                        double x1 = Math.min(src1.getMinX(), src2.getMinX());
 
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                        double y1 = Math.min(src1.getMinY(), src2.getMinY());
 
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                        double x2 = Math.max(src1.getMaxX(), src2.getMaxX());
 
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                        double y2 = Math.max(src1.getMaxY(), src2.getMaxY());
 
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                        result = new Rectangle2D.Double();
 
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                        result.setFrameFromDiagonal(x1, y1, x2, y2);
 
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                } else if (src1 != null) {
 
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                        double x1 = src1.getMinX();
 
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                        double y1 = src1.getMinY();
 
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                        double x2 = src1.getMaxX();
 
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                        double y2 = src1.getMaxY();
 
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                        result = new Rectangle2D.Double();
 
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                        result.setFrameFromDiagonal(x1, y1, x2, y2);
 
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                } else {
 
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                        // only src2 is non-null
 
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                        double x1 = src2.getMinX();
 
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                        double y1 = src2.getMinY();
 
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                        double x2 = src2.getMaxX();
 
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                        double y2 = src2.getMaxY();
 
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                        result = new Rectangle2D.Double();
 
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                        result.setFrameFromDiagonal(x1, y1, x2, y2);
 
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                }
 
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                return result;
 
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        }
 
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}