| /* |
| * Copyright (c) 1998, 2014, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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 javax.swing.plaf.metal; |
| |
| import sun.swing.SwingUtilities2; |
| 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; |
| import javax.swing.plaf.basic.BasicHTML; |
| import javax.swing.text.View; |
| |
| |
| /** |
| * 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. As of 1.4, support for long term storage |
| * of all JavaBeans™ |
| * has been added to the <code>java.beans</code> package. |
| * Please see {@link java.beans.XMLEncoder}. |
| * |
| * @author Steve Wilson |
| */ |
| @SuppressWarnings("serial") // Same-version serialization only |
| public class MetalToolTipUI extends BasicToolTipUI { |
| |
| static MetalToolTipUI sharedInstance = new MetalToolTipUI(); |
| private Font smallFont; |
| // Refer to note in getAcceleratorString about this field. |
| private JToolTip tip; |
| |
| /** |
| * The space between strings. |
| */ |
| public static final int padSpaceBetweenStrings = 12; |
| private String acceleratorDelimiter; |
| |
| /** |
| * Constructs an instance of the {@code MetalToolTipUI}. |
| */ |
| public MetalToolTipUI() { |
| super(); |
| } |
| |
| /** |
| * Returns an instance of the {@code MetalToolTipUI}. |
| * |
| * @param c a component |
| * @return an instance of the {@code MetalToolTipUI}. |
| */ |
| 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 ); |
| acceleratorDelimiter = UIManager.getString( "MenuItem.acceleratorDelimiter" ); |
| if ( acceleratorDelimiter == null ) { acceleratorDelimiter = "-"; } |
| } |
| |
| public void uninstallUI(JComponent c) { |
| super.uninstallUI(c); |
| tip = null; |
| } |
| |
| public void paint(Graphics g, JComponent c) { |
| JToolTip tip = (JToolTip)c; |
| Font font = c.getFont(); |
| FontMetrics metrics = SwingUtilities2.getFontMetrics(c, g, font); |
| Dimension size = c.getSize(); |
| int accelBL; |
| |
| g.setColor(c.getForeground()); |
| // fix for bug 4153892 |
| String tipText = tip.getTipText(); |
| if (tipText == null) { |
| tipText = ""; |
| } |
| |
| String accelString = getAcceleratorString(tip); |
| FontMetrics accelMetrics = SwingUtilities2.getFontMetrics(c, g, smallFont); |
| int accelSpacing = calcAccelSpacing(c, accelMetrics, accelString); |
| |
| Insets insets = tip.getInsets(); |
| Rectangle paintTextR = new Rectangle( |
| insets.left + 3, |
| insets.top, |
| size.width - (insets.left + insets.right) - 6 - accelSpacing, |
| size.height - (insets.top + insets.bottom)); |
| View v = (View) c.getClientProperty(BasicHTML.propertyKey); |
| if (v != null) { |
| v.paint(g, paintTextR); |
| accelBL = BasicHTML.getHTMLBaseline(v, paintTextR.width, |
| paintTextR.height); |
| } else { |
| g.setFont(font); |
| SwingUtilities2.drawString(tip, g, tipText, paintTextR.x, |
| paintTextR.y + metrics.getAscent()); |
| accelBL = metrics.getAscent(); |
| } |
| |
| if (!accelString.equals("")) { |
| g.setFont(smallFont); |
| g.setColor( MetalLookAndFeel.getPrimaryControlDarkShadow() ); |
| SwingUtilities2.drawString(tip, g, accelString, |
| tip.getWidth() - 1 - insets.right |
| - accelSpacing |
| + padSpaceBetweenStrings |
| - 3, |
| paintTextR.y + accelBL); |
| } |
| } |
| |
| private int calcAccelSpacing(JComponent c, FontMetrics fm, String accel) { |
| return accel.equals("") |
| ? 0 |
| : padSpaceBetweenStrings + |
| SwingUtilities2.stringWidth(c, fm, accel); |
| } |
| |
| public Dimension getPreferredSize(JComponent c) { |
| Dimension d = super.getPreferredSize(c); |
| |
| String key = getAcceleratorString((JToolTip)c); |
| if (!(key.equals(""))) { |
| d.width += calcAccelSpacing(c, c.getFontMetrics(smallFont), key); |
| } |
| return d; |
| } |
| |
| /** |
| * If the accelerator is hidden, the method returns {@code true}, |
| * otherwise, returns {@code false}. |
| * |
| * @return {@code true} if the accelerator is hidden. |
| */ |
| protected boolean isAcceleratorHidden() { |
| Boolean b = (Boolean)UIManager.get("ToolTip.hideAccelerator"); |
| return b != null && b.booleanValue(); |
| } |
| |
| private String getAcceleratorString(JToolTip tip) { |
| this.tip = tip; |
| |
| String retValue = getAcceleratorString(); |
| |
| this.tip = null; |
| return retValue; |
| } |
| |
| /** |
| * Returns the accelerator string. |
| * |
| * @return the accelerator string. |
| */ |
| // NOTE: This requires the tip field to be set before this is invoked. |
| // As MetalToolTipUI is shared between all JToolTips the tip field is |
| // set appropriately before this is invoked. Unfortunately this means |
| // that subclasses that randomly invoke this method will see varying |
| // results. If this becomes an issue, MetalToolTipUI should no longer be |
| // shared. |
| @SuppressWarnings("deprecation") |
| public String getAcceleratorString() { |
| if (tip == null || isAcceleratorHidden()) { |
| return ""; |
| } |
| JComponent comp = tip.getComponent(); |
| if (!(comp instanceof AbstractButton)) { |
| return ""; |
| } |
| |
| KeyStroke[] keys = comp.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).keys(); |
| if (keys == null) { |
| return ""; |
| } |
| |
| String controlKeyStr = ""; |
| |
| for (int i = 0; i < keys.length; i++) { |
| int mod = keys[i].getModifiers(); |
| controlKeyStr = KeyEvent.getKeyModifiersText(mod) + |
| acceleratorDelimiter + |
| KeyEvent.getKeyText(keys[i].getKeyCode()); |
| break; |
| } |
| |
| return controlKeyStr; |
| } |
| |
| } |