/* * AcceleratorToolTipUI.java * * Copyright (C) 2002, 2003, 2004, 2005, 2006 Takis Diakoumis * * This program 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 * of the License, or any later version. * * This program 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 this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. * */package org.underworldlabs.swing.plaf.base;import java.awt.Dimension;import java.awt.Font;import java.awt.FontMetrics;import java.awt.Graphics;import java.awt.Insets;import java.awt.Rectangle;import java.awt.event.KeyEvent;import javax.swing.AbstractButton;import javax.swing.Action;import javax.swing.JComponent;import javax.swing.JToolTip;import javax.swing.KeyStroke;import javax.swing.plaf.basic.BasicToolTipUI;import org.underworldlabs.Constants;import org.underworldlabs.util.MiscUtils;/* ---------------------------------------------------------- * CVS NOTE: Changes to the CVS repository prior to the  *           release of version 3.0.0beta1 has meant a  *           resetting of CVS revision numbers. * ---------------------------------------------------------- *//** * * @author   Takis Diakoumis * @version  $Revision: 1.4 $ * @date     $Date: 2006/05/14 06:56:07 $ */public class AcceleratorToolTipUI extends BasicToolTipUI {    private static String delimiter = "+";    public AcceleratorToolTipUI() {        super();    }    public void paint(Graphics g, JComponent c) {        Font font = c.getFont();        FontMetrics metrics = c.getFontMetrics(font);        Dimension size = c.getSize();        if (c.isOpaque()) {            g.setColor(c.getBackground());            g.fillRect(0, 0, size.width + 20, size.height);        }        g.setColor(c.getForeground());        g.setFont(font);        JToolTip tip = (JToolTip)c;        String keyText = getAccelerator(tip);        if (!MiscUtils.isNull(keyText)) {            Insets insets = c.getInsets();            Rectangle paintTextR = new Rectangle(                insets.left,                insets.top,                size.width - (insets.left + insets.right),                size.height - (insets.top + insets.bottom));            g.drawString(keyText,                     paintTextR.x + 3,                    paintTextR.y + metrics.getAscent());        }    }    public Dimension getPreferredSize(JComponent c) {        Dimension d = super.getPreferredSize(c);        JToolTip tip = (JToolTip)c;        String keyText = getAccelerator(tip);        if (!MiscUtils.isNull(keyText)) {            Font font = c.getFont();            FontMetrics fm = c.getFontMetrics(font);	            d.width = fm.stringWidth(keyText) + 8;        }        return d;    }    private String getAccelerator(JToolTip tip) {        String text = tip.getTipText();        if (text == null) {            text = Constants.EMPTY;         }        Action action = ((AbstractButton)tip.getComponent()).getAction();        if (action != null) {            String modText = null;            KeyStroke keyStroke = (KeyStroke)action.getValue(                                                Action.ACCELERATOR_KEY);            if (keyStroke != null) {                int mod = keyStroke.getModifiers();                modText = KeyEvent.getKeyModifiersText(mod);                if (!MiscUtils.isNull(modText)) {                    modText += delimiter;                }                String keyText = KeyEvent.getKeyText(keyStroke.getKeyCode());                if (!MiscUtils.isNull(keyText)) {                    modText += keyText;                }            }            if (!MiscUtils.isNull(modText)) {                text = text + "  (" + modText + ")";            }                            }        return text;    }}