--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sanity/client/lib/SwingSet3/src/com/sun/swingset3/demos/spinner/Palette.java	Wed Mar 30 19:05:58 2016 -0700
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2007, 2016, 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.swingset3.demos.spinner;
+
+/**
+ * @author Mikhail Lapshin
+ */
+import java.awt.*;
+
+public class Palette {
+
+    private final int minColor;
+    private final int colorRange;
+    private Color[] colors;
+    private int[] rgbColors;
+    private final int rSteps;
+    private final int gSteps;
+    private final int bSteps;
+    private int totalRange;
+    private int rRange;
+    private int gRange;
+    private int bRange;
+    private final double rStart;
+    private final double gStart;
+    private final double bStart;
+
+    public Palette(int totalRange, int minColor, int maxColor, double rStart,
+            double gStart, double bStart, int rSteps, int gSteps, int bSteps) {
+        this.minColor = minColor;
+        this.colorRange = maxColor - minColor;
+        this.rStart = rStart;
+        this.gStart = gStart;
+        this.bStart = bStart;
+        this.rSteps = rSteps;
+        this.gSteps = gSteps;
+        this.bSteps = bSteps;
+        setSize(totalRange);
+    }
+
+    public void setSize(int newSize) {
+        totalRange = newSize;
+        rRange = totalRange / rSteps;
+        gRange = totalRange / gSteps;
+        bRange = totalRange / bSteps;
+        fillColorTable();
+    }
+
+    private void fillColorTable() {
+        colors = new Color[totalRange];
+        rgbColors = new int[totalRange];
+        for (int i = 0; i < totalRange; i++) {
+            double cosR = Math.cos(i * 2 * Math.PI / rRange + rStart);
+            double cosG = Math.cos(i * 2 * Math.PI / gRange + gStart);
+            double cosB = Math.cos(i * 2 * Math.PI / bRange + bStart);
+            Color color = new Color(
+                    (int) ((cosR * colorRange) + colorRange) / 2 + minColor,
+                    (int) ((cosG * colorRange) + colorRange) / 2 + minColor,
+                    (int) ((cosB * colorRange) + colorRange) / 2 + minColor);
+            colors[i] = color;
+            rgbColors[i] = color.getRGB();
+        }
+    }
+
+    public Color getColor(int index) {
+        return colors[index];
+    }
+
+    public int getRgbColor(int index) {
+        return rgbColors[index];
+    }
+
+    public int getSize() {
+        return totalRange;
+    }
+}