--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/visualizer/Graal/src/com/sun/hotspot/igv/graal/filters/GraalColoringFilter.java	Tue Feb 07 22:41:09 2012 +0100
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+package com.sun.hotspot.igv.graal.filters;
+
+import com.sun.hotspot.igv.data.Properties;
+import com.sun.hotspot.igv.filter.AbstractFilter;
+import com.sun.hotspot.igv.graph.Diagram;
+import com.sun.hotspot.igv.graph.Figure;
+import java.awt.Color;
+import java.util.List;
+
+public class GraalColoringFilter extends AbstractFilter {
+    
+    private String colorName;
+
+    public GraalColoringFilter(String colorName) {
+        this.colorName = colorName;
+    }
+
+    @Override
+    public String getName() {
+        return "Graal Coloring Filter (" + colorName + ")";
+    }
+
+    @Override
+    public void apply(Diagram d) {
+        List<Figure> figures = d.getFigures();
+        int colors = 0;
+        for (Figure f : figures) {
+            Properties p = f.getProperties();
+            final String prop = p.get(colorName + "Color");
+            if (prop == null) {
+                continue;
+            }
+            try {
+                int color = Integer.parseInt(prop);
+                if (color > colors) {
+                    colors = color;
+                }
+            } catch (NumberFormatException nfe) {
+                // nothing to do
+            }
+        }
+        colors++;
+        for (Figure f : figures) {
+            Properties p = f.getProperties();
+            final String prop = p.get(colorName + "Color");
+            if (prop == null) {
+                continue;
+            }
+            try {
+                int color = Integer.parseInt(prop);
+                Color c = Color.getHSBColor((float) color / colors, 1.0f, 0.7f);
+                f.setColor(c);
+            } catch (NumberFormatException nfe) {
+                // nothing to do
+            }
+        }
+    }
+}