1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236
/* * @(#)BasicToolTipUI.java 1.44 05/11/30 * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package javax.swing.plaf.basic; import sun.swing.SwingUtilities2; import java.awt.*; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import javax.swing.*; import javax.swing.BorderFactory; import javax.swing.border.Border; import javax.swing.plaf.ToolTipUI; import javax.swing.plaf.ComponentUI; import javax.swing.plaf.UIResource; import javax.swing.text.View; /** * Standard tool tip L&F. * <p> * * @version 1.44 11/30/05 * @author Dave Moore */ public class BasicToolTipUI extends ToolTipUI { static BasicToolTipUI sharedInstance = new BasicToolTipUI(); /** * Global <code>PropertyChangeListener</code> that * <code>createPropertyChangeListener</code> returns. */ private static PropertyChangeListener sharedPropertyChangedListener; private PropertyChangeListener propertyChangeListener; public static ComponentUI createUI(JComponent c) { return sharedInstance; } public BasicToolTipUI() { super(); } public void installUI(JComponent c) { installDefaults(c); installComponents(c); installListeners(c); } public void uninstallUI(JComponent c) { // REMIND: this is NOT getting called uninstallDefaults(c); uninstallComponents(c); uninstallListeners(c); } protected void installDefaults(JComponent c){ LookAndFeel.installColorsAndFont(c, "ToolTip.background", "ToolTip.foreground", "ToolTip.font"); LookAndFeel.installProperty(c, "opaque", Boolean.TRUE); componentChanged(c); } protected void uninstallDefaults(JComponent c){ LookAndFeel.uninstallBorder(c); } /* Unfortunately this has to remain private until we can make API additions. */ private void installComponents(JComponent c){ BasicHTML.updateRenderer(c, ((JToolTip)c).getTipText()); } /* Unfortunately this has to remain private until we can make API additions. */ private void uninstallComponents(JComponent c){ BasicHTML.updateRenderer(c, ""); } protected void installListeners(JComponent c) { propertyChangeListener = createPropertyChangeListener(c); c.addPropertyChangeListener(propertyChangeListener); } protected void uninstallListeners(JComponent c) { c.removePropertyChangeListener(propertyChangeListener); propertyChangeListener = null; } /* Unfortunately this has to remain private until we can make API additions. */ private PropertyChangeListener createPropertyChangeListener(JComponent c) { if (sharedPropertyChangedListener == null) { sharedPropertyChangedListener = new PropertyChangeHandler(); } return sharedPropertyChangedListener; } public void paint(Graphics g, JComponent c) { Font font = c.getFont(); FontMetrics metrics = SwingUtilities2.getFontMetrics(c, g, font); Dimension size = c.getSize(); g.setColor(c.getForeground()); // fix for bug 4153892 String tipText = ((JToolTip)c).getTipText(); if (tipText == null) { tipText = ""; } Insets insets = c.getInsets(); Rectangle paintTextR = new Rectangle( insets.left + 3, insets.top, size.width - (insets.left + insets.right) - 6, size.height - (insets.top + insets.bottom)); View v = (View) c.getClientProperty(BasicHTML.propertyKey); if (v != null) { v.paint(g, paintTextR); } else { g.setFont(font); SwingUtilities2.drawString(c, g, tipText, paintTextR.x, paintTextR.y + metrics.getAscent()); } } public Dimension getPreferredSize(JComponent c) { Font font = c.getFont(); FontMetrics fm = c.getFontMetrics(font); Insets insets = c.getInsets(); Dimension prefSize = new Dimension(insets.left+insets.right, insets.top+insets.bottom); String text = ((JToolTip)c).getTipText(); if ((text == null) || text.equals("")) { text = ""; } else { View v = (c != null) ? (View) c.getClientProperty("html") : null; if (v != null) { prefSize.width += (int) v.getPreferredSpan(View.X_AXIS) + 6; prefSize.height += (int) v.getPreferredSpan(View.Y_AXIS); } else { prefSize.width += SwingUtilities2.stringWidth(c,fm,text) + 6; prefSize.height += fm.getHeight(); } } return prefSize; } public Dimension getMinimumSize(JComponent c) { Dimension d = getPreferredSize(c); View v = (View) c.getClientProperty(BasicHTML.propertyKey); if (v != null) { d.width -= v.getPreferredSpan(View.X_AXIS) - v.getMinimumSpan(View.X_AXIS); } return d; } public Dimension getMaximumSize(JComponent c) { Dimension d = getPreferredSize(c); View v = (View) c.getClientProperty(BasicHTML.propertyKey); if (v != null) { d.width += v.getMaximumSpan(View.X_AXIS) - v.getPreferredSpan(View.X_AXIS); } return d; } /** * Invoked when the <code>JCompoment</code> associated with the * <code>JToolTip</code> has changed, or at initialization time. This * should update any state dependant upon the <code>JComponent</code>. * * @param c the JToolTip the JComponent has changed on. */ private void componentChanged(JComponent c) { JComponent comp = ((JToolTip)c).getComponent(); if (comp != null && !(comp.isEnabled())) { // For better backward compatability, only install inactive // properties if they are defined. if (UIManager.getBorder("ToolTip.borderInactive") != null) { LookAndFeel.installBorder(c, "ToolTip.borderInactive"); } else { LookAndFeel.installBorder(c, "ToolTip.border"); } if (UIManager.getColor("ToolTip.backgroundInactive") != null) { LookAndFeel.installColors(c,"ToolTip.backgroundInactive", "ToolTip.foregroundInactive"); } else { LookAndFeel.installColors(c,"ToolTip.background", "ToolTip.foreground"); } } else { LookAndFeel.installBorder(c, "ToolTip.border"); LookAndFeel.installColors(c, "ToolTip.background", "ToolTip.foreground"); } } private static class PropertyChangeHandler implements PropertyChangeListener { public void propertyChange(PropertyChangeEvent e) { String name = e.getPropertyName(); if (name.equals("tiptext") || "font".equals(name) || "foreground".equals(name)) { // remove the old html view client property if one // existed, and install a new one if the text installed // into the JLabel is html source. JToolTip tip = ((JToolTip) e.getSource()); String text = tip.getTipText(); BasicHTML.updateRenderer(tip, text); } else if ("component".equals(name)) { JToolTip tip = ((JToolTip) e.getSource()); if (tip.getUI() instanceof BasicToolTipUI) { ((BasicToolTipUI)tip.getUI()).componentChanged(tip); } } } } }