--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/swing/CachedIcon.java	Thu May 24 04:16:47 2012 -0400
@@ -0,0 +1,67 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
+ */
+
+package com.oracle.solaris.vp.util.swing;
+
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import javax.swing.Icon;
+
+@SuppressWarnings({"serial"})
+public abstract class CachedIcon implements Icon {
+    //
+    // Instance data
+    //
+
+    private BufferedImage cachedImage;
+
+    //
+    // Icon methods
+    //
+
+    @Override
+    public void paintIcon(Component c, Graphics g1, int xOffset, int yOffset) {
+	Graphics2D g = (Graphics2D)g1;
+
+	if (cachedImage == null) {
+	    cachedImage = new BufferedImage(getIconWidth(), getIconHeight(),
+		BufferedImage.TYPE_INT_ARGB);
+	    Graphics2D bG = cachedImage.createGraphics();
+	    paintIcon(bG);
+	}
+
+	g.drawImage(cachedImage, xOffset, yOffset, null);
+    }
+
+    //
+    // CachedIcon methods
+    //
+
+    protected void invalidateCachedImage() {
+	cachedImage = null;
+    }
+
+    protected abstract void paintIcon(Graphics2D g);
+}