--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usr/src/cmd/cmd-inet/usr.sadm/dhcpmgr/com/sun/dhcpmgr/ui/AutosizingTable.java	Tue Jun 02 18:56:50 2009 +0900
@@ -0,0 +1,141 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (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
+ */
+/*
+ * ident	"@(#)AutosizingTable.java	1.5	05/06/08 SMI"
+ *
+ * Copyright (c) 1999-2001 by Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+package com.sun.dhcpmgr.ui;
+
+import javax.swing.JTable;
+import javax.swing.table.*;
+import javax.swing.event.TableModelEvent;
+import java.awt.Component;
+import java.util.Date;
+
+import com.sun.dhcpmgr.data.IPAddress;
+import com.sun.dhcpmgr.data.ValidationException;
+
+/**
+ * A subclass of Swing's JTable which automatically resizes its columns to
+ * fit the data being displayed in them.
+ */ 
+public class AutosizingTable extends JTable {
+    Date aDate = null;
+    IPAddress longIP = null;
+    
+    /**
+     * Construct the table
+     */
+    public AutosizingTable() {
+        super();
+    }
+
+    /**
+     * Construct the table with the given model.
+     * @param model the TableModel to be used.
+     */
+    public AutosizingTable(TableModel model) {
+	super(model);
+    }
+    
+    /**
+     * The table has changed; we'll resize the columns to contain the new data
+     * as best they can.
+     */
+    public void tableChanged(TableModelEvent e) {
+	/*
+	 * Let JTable do its thing, which probably includes wiping out 
+	 * the old columns and creating new ones
+	 */
+	super.tableChanged(e);
+	TableModel model = getModel();
+	if (model.getRowCount() == 0) {
+	    // No data, so just skip all the gymnastics
+	    return;
+	}
+	/*
+	 * Set column widths by first finding largest value in each column
+	 * and then sizing accordingly
+	 */
+	for (int i = 0; i < getColumnCount(); ++i) {
+	    TableColumn col = getColumnModel().getColumn(i);
+
+	    // Get the width of the header for this column
+	    TableCellRenderer r = col.getHeaderRenderer();
+	    int headerWidth = 0;
+	    Component c;
+	    if (r == null)
+		r = getTableHeader().getDefaultRenderer();
+	    if (r != null) {
+		c = r.getTableCellRendererComponent(this, col.getHeaderValue(),
+		    false, false, 0, 0);
+		headerWidth = c.getPreferredSize().width;
+	    }
+	    Object maxVal = null;
+
+	    if (model.getColumnClass(i) == String.class) {
+		// Column contains strings; find the longest one
+		String maxString = "";
+		for (int j = 0; j < model.getRowCount(); ++j) {
+		    String s = (String)model.getValueAt(j, i);
+		    if (s != null) {
+			if (maxString.length() < s.length()) {
+			    maxString = s;
+			}
+		    }
+		}
+		maxVal = maxString;
+	    } else if (model.getColumnClass(i) == IPAddress.class) {
+		// Column contains IP addresses; one long one is as good as any
+		if (longIP == null) {
+		    try {
+			longIP = new IPAddress("222.222.222.222");
+		    } catch (ValidationException ex) {
+			// This should never happen!
+		    }
+		}
+		maxVal = longIP;
+	    } else if (model.getColumnClass(i) == Date.class) {
+		// Column contains dates; now is as good a time as any other.
+		if (aDate == null) {
+		    aDate = new Date();
+		}
+		maxVal = aDate;
+	    }
+	    // Now compute the width of the cell containing the longest value
+	    c = getDefaultRenderer(
+		model.getColumnClass(i)).getTableCellRendererComponent(
+		this, maxVal, false, false, 0, i);
+	    int cellWidth = c.getPreferredSize().width;
+
+	    // Set preferred width to the greater of the header & cell widths
+	    col.setPreferredWidth(Math.max(headerWidth, cellWidth));
+	}
+	// Now force the resizing we just did to be displayed
+	sizeColumnsToFit(-1);
+
+	// Force header to repaint itself, otherwise it won't align correctly
+	getTableHeader().resizeAndRepaint();
+    }
+}