AWT/Swing merge from GNU Classpath.

From-SVN: r56147

libjava/java/awt/geom/FlatteningPathIterator.java

@@ -0,0 +1,105 @@
+/* FlatteningPathIterator.java -- performs interpolation of curved paths
+   Copyright (C) 2002 Free Software Foundation
+
+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., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.geom;
+
+/**
+ * This class can be used to perform the flattening required by the Shape
+ * interface. It interpolates a curved path segment into a sequence of flat
+ * ones within a certain flatness, up to a recursion limit.
+ *
+ * @author Eric Blake <ebb9@email.byu.edu>
+ * @see Shape
+ * @see RectangularShape#getPathIterator(AffineTransform, double)
+ * @since 1.2
+ * @status STUBS ONLY
+ */
+public class FlatteningPathIterator implements PathIterator
+{
+  // The iterator we are applied to.
+  private PathIterator subIterator;
+  private double flatness;
+  private int limit;
+
+  public FlatteningPathIterator(PathIterator src, double flatness)
+  {
+    this(src, flatness, 10);
+  }
+  public FlatteningPathIterator(PathIterator src, double flatness, int limit)
+  {
+    subIterator = src;
+    this.flatness = flatness;
+    this.limit = limit;
+    if (flatness < 0 || limit < 0)
+      throw new IllegalArgumentException();
+  }
+
+  public double getFlatness()
+  {
+    return flatness;
+  }
+
+  public int getRecursionLimit()
+  {
+    return limit;
+  }
+
+  public int getWindingRule()
+  {
+    return subIterator.getWindingRule();
+  }
+
+  public boolean isDone()
+  {
+    return subIterator.isDone();
+  }
+
+  public void next()
+  {
+    throw new Error("not implemented");
+  }
+
+  public int currentSegment(double[] coords)
+  {
+    throw new Error("not implemented");
+  }
+  public int currentSegment(float[] coords)
+  {
+    throw new Error("not implemented");
+  }
+} // class FlatteningPathIterator