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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2005, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package javax.swing.plaf.basic; | |
| 27 | + | |
| 28 | +import sun.swing.SwingUtilities2; | |
| 29 | +import java.awt.*; | |
| 30 | +import java.beans.PropertyChangeEvent; | |
| 31 | +import java.beans.PropertyChangeListener; | |
| 32 | + | |
| 33 | +import javax.swing.*; | |
| 34 | +import javax.swing.BorderFactory; | |
| 35 | +import javax.swing.border.Border; | |
| 36 | +import javax.swing.plaf.ToolTipUI; | |
| 37 | +import javax.swing.plaf.ComponentUI; | |
| 38 | +import javax.swing.plaf.UIResource; | |
| 39 | +import javax.swing.text.View; | |
| 40 | + | |
| 41 | + | |
| 42 | +/** | |
| 43 | + * Standard tool tip L&F. | |
| 44 | + * <p> | |
| 45 | + * | |
| 46 | + * @author Dave Moore | |
| 47 | + */ | |
| 48 | +public class BasicToolTipUI extends ToolTipUI | |
| 49 | +{ | |
| 50 | + static BasicToolTipUI sharedInstance = new BasicToolTipUI(); | |
| 51 | + /** | |
| 52 | + * Global <code>PropertyChangeListener</code> that | |
| 53 | + * <code>createPropertyChangeListener</code> returns. | |
| 54 | + */ | |
| 55 | + private static PropertyChangeListener sharedPropertyChangedListener; | |
| 56 | + | |
| 57 | + private PropertyChangeListener propertyChangeListener; | |
| 58 | + | |
| 59 | + public static ComponentUI createUI(JComponent c) { | |
| 60 | + return sharedInstance; | |
| 61 | + } | |
| 62 | + | |
| 63 | + public BasicToolTipUI() { | |
| 64 | + super(); | |
| 65 | + } | |
| 66 | + | |
| 67 | + public void installUI(JComponent c) { | |
| 68 | + installDefaults(c); | |
| 69 | + installComponents(c); | |
| 70 | + installListeners(c); | |
| 71 | + } | |
| 72 | + | |
| 73 | + public void uninstallUI(JComponent c) { | |
| 74 | + // REMIND: this is NOT getting called | |
| 75 | + uninstallDefaults(c); | |
| 76 | + uninstallComponents(c); | |
| 77 | + uninstallListeners(c); | |
| 78 | + } | |
| 79 | + | |
| 80 | + protected void installDefaults(JComponent c){ | |
| 81 | + LookAndFeel.installColorsAndFont(c, "ToolTip.background", | |
| 82 | + "ToolTip.foreground", | |
| 83 | + "ToolTip.font"); | |
| 84 | + LookAndFeel.installProperty(c, "opaque", Boolean.TRUE); | |
| 85 | + componentChanged(c); | |
| 86 | + } | |
| 87 | + | |
| 88 | + protected void uninstallDefaults(JComponent c){ | |
| 89 | + LookAndFeel.uninstallBorder(c); | |
| 90 | + } | |
| 91 | + | |
| 92 | + /* Unfortunately this has to remain private until we can make API additions. | |
| 93 | + */ | |
| 94 | + private void installComponents(JComponent c){ | |
| 95 | + BasicHTML.updateRenderer(c, ((JToolTip)c).getTipText()); | |
| 96 | + } | |
| 97 | + | |
| 98 | + /* Unfortunately this has to remain private until we can make API additions. | |
| 99 | + */ | |
| 100 | + private void uninstallComponents(JComponent c){ | |
| 101 | + BasicHTML.updateRenderer(c, ""); | |
| 102 | + } | |
| 103 | + | |
| 104 | + protected void installListeners(JComponent c) { | |
| 105 | + propertyChangeListener = createPropertyChangeListener(c); | |
| 106 | + | |
| 107 | + c.addPropertyChangeListener(propertyChangeListener); | |
| 108 | + } | |
| 109 | + | |
| 110 | + protected void uninstallListeners(JComponent c) { | |
| 111 | + c.removePropertyChangeListener(propertyChangeListener); | |
| 112 | + | |
| 113 | + propertyChangeListener = null; | |
| 114 | + } | |
| 115 | + | |
| 116 | + /* Unfortunately this has to remain private until we can make API additions. | |
| 117 | + */ | |
| 118 | + private PropertyChangeListener createPropertyChangeListener(JComponent c) { | |
| 119 | + if (sharedPropertyChangedListener == null) { | |
| 120 | + sharedPropertyChangedListener = new PropertyChangeHandler(); | |
| 121 | + } | |
| 122 | + return sharedPropertyChangedListener; | |
| 123 | + } | |
| 124 | + | |
| 125 | + public void paint(Graphics g, JComponent c) { | |
| 126 | + Font font = c.getFont(); | |
| 127 | + FontMetrics metrics = SwingUtilities2.getFontMetrics(c, g, font); | |
| 128 | + Dimension size = c.getSize(); | |
| 129 | + | |
| 130 | + g.setColor(c.getForeground()); | |
| 131 | + // fix for bug 4153892 | |
| 132 | + String tipText = ((JToolTip)c).getTipText(); | |
| 133 | + if (tipText == null) { | |
| 134 | + tipText = ""; | |
| 135 | + } | |
| 136 | + | |
| 137 | + Insets insets = c.getInsets(); | |
| 138 | + Rectangle paintTextR = new Rectangle( | |
| 139 | + insets.left + 3, | |
| 140 | + insets.top, | |
| 141 | + size.width - (insets.left + insets.right) - 6, | |
| 142 | + size.height - (insets.top + insets.bottom)); | |
| 143 | + View v = (View) c.getClientProperty(BasicHTML.propertyKey); | |
| 144 | + if (v != null) { | |
| 145 | + v.paint(g, paintTextR); | |
| 146 | + } else { | |
| 147 | + g.setFont(font); | |
| 148 | + SwingUtilities2.drawString(c, g, tipText, paintTextR.x, | |
| 149 | + paintTextR.y + metrics.getAscent()); | |
| 150 | + } | |
| 151 | + } | |
| 152 | + | |
| 153 | + public Dimension getPreferredSize(JComponent c) { | |
| 154 | + Font font = c.getFont(); | |
| 155 | + FontMetrics fm = c.getFontMetrics(font); | |
| 156 | + Insets insets = c.getInsets(); | |
| 157 | + | |
| 158 | + Dimension prefSize = new Dimension(insets.left+insets.right, | |
| 159 | + insets.top+insets.bottom); | |
| 160 | + String text = ((JToolTip)c).getTipText(); | |
| 161 | + | |
| 162 | + if ((text == null) || text.equals("")) { | |
| 163 | + text = ""; | |
| 164 | + } | |
| 165 | + else { | |
| 166 | + View v = (c != null) ? (View) c.getClientProperty("html") : null; | |
| 167 | + if (v != null) { | |
| 168 | + prefSize.width += (int) v.getPreferredSpan(View.X_AXIS) + 6; | |
| 169 | + prefSize.height += (int) v.getPreferredSpan(View.Y_AXIS); | |
| 170 | + } else { | |
| 171 | + prefSize.width += SwingUtilities2.stringWidth(c,fm,text) + 6; | |
| 172 | + prefSize.height += fm.getHeight(); | |
| 173 | + } | |
| 174 | + } | |
| 175 | + return prefSize; | |
| 176 | + } | |
| 177 | + | |
| 178 | + public Dimension getMinimumSize(JComponent c) { | |
| 179 | + Dimension d = getPreferredSize(c); | |
| 180 | + View v = (View) c.getClientProperty(BasicHTML.propertyKey); | |
| 181 | + if (v != null) { | |
| 182 | + d.width -= v.getPreferredSpan(View.X_AXIS) - v.getMinimumSpan(View.X_AXIS); | |
| 183 | + } | |
| 184 | + return d; | |
| 185 | + } | |
| 186 | + | |
| 187 | + public Dimension getMaximumSize(JComponent c) { | |
| 188 | + Dimension d = getPreferredSize(c); | |
| 189 | + View v = (View) c.getClientProperty(BasicHTML.propertyKey); | |
| 190 | + if (v != null) { | |
| 191 | + d.width += v.getMaximumSpan(View.X_AXIS) - v.getPreferredSpan(View.X_AXIS); | |
| 192 | + } | |
| 193 | + return d; | |
| 194 | + } | |
| 195 | + | |
| 196 | + /** | |
| 197 | + * Invoked when the <code>JCompoment</code> associated with the | |
| 198 | + * <code>JToolTip</code> has changed, or at initialization time. This | |
| 199 | + * should update any state dependant upon the <code>JComponent</code>. | |
| 200 | + * | |
| 201 | + * @param c the JToolTip the JComponent has changed on. | |
| 202 | + */ | |
| 203 | + private void componentChanged(JComponent c) { | |
| 204 | + JComponent comp = ((JToolTip)c).getComponent(); | |
| 205 | + | |
| 206 | + if (comp != null && !(comp.isEnabled())) { | |
| 207 | + // For better backward compatability, only install inactive | |
| 208 | + // properties if they are defined. | |
| 209 | + if (UIManager.getBorder("ToolTip.borderInactive") != null) { | |
| 210 | + LookAndFeel.installBorder(c, "ToolTip.borderInactive"); | |
| 211 | + } | |
| 212 | + else { | |
| 213 | + LookAndFeel.installBorder(c, "ToolTip.border"); | |
| 214 | + } | |
| 215 | + if (UIManager.getColor("ToolTip.backgroundInactive") != null) { | |
| 216 | + LookAndFeel.installColors(c,"ToolTip.backgroundInactive", | |
| 217 | + "ToolTip.foregroundInactive"); | |
| 218 | + } | |
| 219 | + else { | |
| 220 | + LookAndFeel.installColors(c,"ToolTip.background", | |
| 221 | + "ToolTip.foreground"); | |
| 222 | + } | |
| 223 | + } else { | |
| 224 | + LookAndFeel.installBorder(c, "ToolTip.border"); | |
| 225 | + LookAndFeel.installColors(c, "ToolTip.background", | |
| 226 | + "ToolTip.foreground"); | |
| 227 | + } | |
| 228 | + } | |
| 229 | + | |
| 230 | + | |
| 231 | + private static class PropertyChangeHandler implements | |
| 232 | + PropertyChangeListener { | |
| 233 | + public void propertyChange(PropertyChangeEvent e) { | |
| 234 | + String name = e.getPropertyName(); | |
| 235 | + if (name.equals("tiptext") || "font".equals(name) || | |
| 236 | + "foreground".equals(name)) { | |
| 237 | + // remove the old html view client property if one | |
| 238 | + // existed, and install a new one if the text installed | |
| 239 | + // into the JLabel is html source. | |
| 240 | + JToolTip tip = ((JToolTip) e.getSource()); | |
| 241 | + String text = tip.getTipText(); | |
| 242 | + BasicHTML.updateRenderer(tip, text); | |
| 243 | + } | |
| 244 | + else if ("component".equals(name)) { | |
| 245 | + JToolTip tip = ((JToolTip) e.getSource()); | |
| 246 | + | |
| 247 | + if (tip.getUI() instanceof BasicToolTipUI) { | |
| 248 | + ((BasicToolTipUI)tip.getUI()).componentChanged(tip); | |
| 249 | + } | |
| 250 | + } | |
| 251 | + } | |
| 252 | + } | |
| 253 | +} | |