- /*
- * @(#)MetalToolTipUI.java 1.13 01/11/29
- *
- * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package javax.swing.plaf.metal;
-
-
- import java.awt.*;
- import java.awt.event.*;
- import javax.swing.*;
- import javax.swing.BorderFactory;
- import javax.swing.border.Border;
- import javax.swing.plaf.*;
- import javax.swing.plaf.basic.BasicToolTipUI;
-
-
- /**
- * A Metal L&F extension of BasicToolTipUI.
- * <p>
- * <strong>Warning:</strong>
- * Serialized objects of this class will not be compatible with
- * future Swing releases. The current serialization support is appropriate
- * for short term storage or RMI between applications running the same
- * version of Swing. A future release of Swing will provide support for
- * long term persistence.
- *
- * @version 1.13 11/29/01
- * @author Steve Wilson
- */
- public class MetalToolTipUI extends BasicToolTipUI {
-
- static MetalToolTipUI sharedInstance = new MetalToolTipUI();
- Font smallFont;
- static JToolTip tip;
- public static final int padSpaceBetweenStrings = 12;
-
- public MetalToolTipUI() {
- super();
- }
-
- public static ComponentUI createUI(JComponent c) {
- return sharedInstance;
- }
-
- public void installUI(JComponent c) {
- super.installUI(c);
- tip = (JToolTip)c;
- Font f = c.getFont();
- smallFont = new Font( f.getName(), f.getStyle(), f.getSize() - 2 );
- }
-
- public void paint(Graphics g, JComponent c) {
- super.paint(g, c);
-
- Font font = c.getFont();
- FontMetrics metrics = Toolkit.getDefaultToolkit().getFontMetrics(font);
- String keyText = getAcceleratorString();
- String tipText = ((JToolTip)c).getTipText();
- if (tipText == null) {
- tipText = "";
- }
- if (! (keyText.equals(""))) { // only draw control key if there is one
- g.setFont(smallFont);
- g.setColor( MetalLookAndFeel.getPrimaryControlDarkShadow() );
- g.drawString(keyText,
- metrics.stringWidth(tipText) + 3 + padSpaceBetweenStrings,
- 2 + metrics.getAscent());
- }
- }
-
- public Dimension getPreferredSize(JComponent c) {
- Dimension d = super.getPreferredSize(c);
-
- String key = getAcceleratorString();
- if (! (key.equals(""))) {
- FontMetrics fm = Toolkit.getDefaultToolkit().getFontMetrics(smallFont);
- d.width += fm.stringWidth(key) + padSpaceBetweenStrings;
- }
- return d;
- }
-
- public String getAcceleratorString() {
- JComponent comp = tip.getComponent();
- if (comp == null) {
- return "";
- }
- KeyStroke[] keys =comp.getRegisteredKeyStrokes();
- String controlKeyStr = "";
-
- for (int i = 0; i < keys.length; i++) {
- char c = (char)keys[i].getKeyCode();
- int mod = keys[i].getModifiers();
- int condition = comp.getConditionForKeyStroke(keys[i]);
- if ( mod == InputEvent.CTRL_MASK && condition == JComponent.WHEN_IN_FOCUSED_WINDOW) {
- controlKeyStr = "cntl+"+(char)keys[i].getKeyCode();
- break;
- } else if (mod == InputEvent.ALT_MASK && condition == JComponent.WHEN_IN_FOCUSED_WINDOW) {
- controlKeyStr = "alt+"+(char)keys[i].getKeyCode();
- break;
- }
- }
- return controlKeyStr;
- }
-
- }