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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 | } | ||