Added grow() and a Log class.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2490 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/geom/GeomUtil.java

@@ -1,5 +1,5 @@
 //
-// $Id: GeomUtil.java,v 1.3 2002/10/29 06:07:22 mdb Exp $
+// $Id: GeomUtil.java,v 1.4 2003/04/28 20:27:52 mdb Exp $
 
 package com.threerings.geom;
 
@@ -140,4 +140,25 @@ public class GeomUtil
             tainer.y = tained.y - (tainer.height - tained.height);
         }
     }
+
+    /**
+     * Adds the target rectangle to the bounds of the source rectangle. If
+     * the source rectangle is null, a new rectangle is created that is the
+     * size of the target rectangle.
+     *
+     * @return the source rectangle.
+     */
+    public static Rectangle grow (Rectangle source, Rectangle target)
+    {
+        if (target == null) {
+            Log.warning("Can't grow with null rectangle [src=" + source +
+                        ", tgt=" + target + "].");
+            Thread.dumpStack();
+        } else if (source == null) {
+            source = new Rectangle(target);
+        } else {
+            source.add(target);
+        }
+        return source;
+    }
 }

src/java/com/threerings/geom/Log.java

@@ -0,0 +1,45 @@
+//
+// $Id: Log.java,v 1.1 2003/04/28 20:27:52 mdb Exp $
+
+package com.threerings.geom;
+
+/**
+ * A placeholder class that contains a reference to the log object used by
+ * this package.
+ */
+public class Log
+{
+    public static final String PACKAGE = "geom";
+
+    public static com.samskivert.util.Log log =
+        new com.samskivert.util.Log(PACKAGE);
+
+    /** Convenience function. */
+    public static void debug (String message)
+    {
+	log.debug(message);
+    }
+
+    /** Convenience function. */
+    public static void info (String message)
+    {
+	log.info(message);
+    }
+
+    /** Convenience function. */
+    public static void warning (String message)
+    {
+	log.warning(message);
+    }
+
+    /** Convenience function. */
+    public static void logStackTrace (Throwable t)
+    {
+	log.logStackTrace(com.samskivert.util.Log.WARNING, t);
+    }
+
+    public static int getLevel ()
+    {
+        return log.getLevel(PACKAGE);
+    }
+}