1 /* 2 * Copyright (c) 2002, 2014, 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.synth; 27 28 import javax.swing.*; 29 import javax.swing.text.*; 30 import javax.swing.plaf.*; 31 import javax.swing.plaf.basic.BasicTextFieldUI; 32 import java.awt.*; 33 import java.awt.event.FocusEvent; 34 import java.awt.event.FocusListener; 35 import java.beans.PropertyChangeEvent; 36 37 38 /** 39 * Provides the Synth L&F UI delegate for {@link javax.swing.JTextField}. 40 * <p> 41 * <strong>Warning:</strong> 42 * Serialized objects of this class will not be compatible with 43 * future Swing releases. The current serialization support is 44 * appropriate for short term storage or RMI between applications running 45 * the same version of Swing. As of 1.4, support for long term storage 46 * of all JavaBeans 47 * has been added to the <code>java.beans</code> package. 48 * Please see {@link java.beans.XMLEncoder}. 49 * 50 * @author Shannon Hickey 51 * @since 1.7 52 */ 53 @SuppressWarnings("serial") // Same-version serialization only 54 public class SynthTextFieldUI extends BasicTextFieldUI implements SynthUI { 55 private Handler handler = new Handler(); 56 private SynthStyle style; 57 private boolean updateKBAction = true; 58 59 /** 60 * Creates a UI for a JTextField. 61 * 62 * @param c the text field 63 * @return the UI object 64 */ 65 public static ComponentUI createUI(JComponent c) { 66 return new SynthTextFieldUI(); 67 } 68 69 private void updateStyle(JTextComponent comp, boolean updateKBAction) { 70 SynthContext context = getContext(comp, ENABLED); 71 SynthStyle oldStyle = style; 72 73 style = SynthLookAndFeel.updateStyle(context, this); 74 75 if (style != oldStyle) { 76 SynthTextFieldUI.updateStyle(comp, context, getPropertyPrefix()); 77 78 if (oldStyle != null && updateKBAction) { 79 uninstallKeyboardActions(); 80 installKeyboardActions(); 81 } 82 } 83 } 84 85 static void updateStyle(JTextComponent comp, SynthContext context, 86 String prefix) { 87 SynthStyle style = context.getStyle(); 88 89 Color color = comp.getCaretColor(); 90 if (color == null || color instanceof UIResource) { 91 comp.setCaretColor( 92 (Color)style.get(context, prefix + ".caretForeground")); 93 } 94 95 Color fg = comp.getForeground(); 96 if (fg == null || fg instanceof UIResource) { 97 fg = style.getColorForState(context, ColorType.TEXT_FOREGROUND); 98 if (fg != null) { 99 comp.setForeground(fg); 100 } 101 } 102 103 Object ar = style.get(context, prefix + ".caretAspectRatio"); 104 if (ar instanceof Number) { 105 comp.putClientProperty("caretAspectRatio", ar); 106 } 107 108 context.setComponentState(SELECTED | FOCUSED); 109 110 Color s = comp.getSelectionColor(); 111 if (s == null || s instanceof UIResource) { 112 comp.setSelectionColor( 113 style.getColor(context, ColorType.TEXT_BACKGROUND)); 114 } 115 116 Color sfg = comp.getSelectedTextColor(); 117 if (sfg == null || sfg instanceof UIResource) { 118 comp.setSelectedTextColor( 119 style.getColor(context, ColorType.TEXT_FOREGROUND)); 120 } 121 122 context.setComponentState(DISABLED); 123 124 Color dfg = comp.getDisabledTextColor(); 125 if (dfg == null || dfg instanceof UIResource) { 126 comp.setDisabledTextColor( 127 style.getColor(context, ColorType.TEXT_FOREGROUND)); 128 } 129 130 Insets margin = comp.getMargin(); 131 if (margin == null || margin instanceof UIResource) { 132 margin = (Insets)style.get(context, prefix + ".margin"); 133 134 if (margin == null) { 135 // Some places assume margins are non-null. 136 margin = SynthLookAndFeel.EMPTY_UIRESOURCE_INSETS; 137 } 138 comp.setMargin(margin); 139 } 140 141 Caret caret = comp.getCaret(); 142 if (caret instanceof UIResource) { 143 Object o = style.get(context, prefix + ".caretBlinkRate"); 144 if (o != null && o instanceof Integer) { 145 Integer rate = (Integer)o; 146 caret.setBlinkRate(rate.intValue()); 147 } 148 } 149 } 150 151 /** 152 * {@inheritDoc} 153 */ 154 @Override 155 public SynthContext getContext(JComponent c) { 156 return getContext(c, SynthLookAndFeel.getComponentState(c)); 157 } 158 159 private SynthContext getContext(JComponent c, int state) { 160 return SynthContext.getContext(c, style, state); 161 } 162 163 /** 164 * Notifies this UI delegate to repaint the specified component. 165 * This method paints the component background, then calls 166 * the {@link #paint(SynthContext,Graphics)} method. 167 * 168 * <p>In general, this method does not need to be overridden by subclasses. 169 * All Look and Feel rendering code should reside in the {@code paint} method. 170 * 171 * @param g the {@code Graphics} object used for painting 172 * @param c the component being painted 173 * @see #paint(SynthContext,Graphics) 174 */ 175 @Override 176 public void update(Graphics g, JComponent c) { 177 SynthContext context = getContext(c); 178 179 SynthLookAndFeel.update(context, g); 180 paintBackground(context, g, c); 181 paint(context, g); 182 } 183 184 /** 185 * Paints the specified component. 186 * <p>This is routed to the {@link #paintSafely} method under 187 * the guarantee that the model does not change from the view of this 188 * thread while it is rendering (if the associated model is 189 * derived from {@code AbstractDocument}). This enables the 190 * model to potentially be updated asynchronously. 191 * 192 * @param context context for the component being painted 193 * @param g the {@code Graphics} object used for painting 194 * @see #update(Graphics,JComponent) 195 */ 196 protected void paint(SynthContext context, Graphics g) { 197 super.paint(g, getComponent()); 198 } 199 200 void paintBackground(SynthContext context, Graphics g, JComponent c) { 201 context.getPainter().paintTextFieldBackground(context, g, 0, 0, 202 c.getWidth(), c.getHeight()); 203 } 204 205 /** 206 * {@inheritDoc} 207 */ 208 @Override 209 public void paintBorder(SynthContext context, Graphics g, int x, 210 int y, int w, int h) { 211 context.getPainter().paintTextFieldBorder(context, g, x, y, w, h); 212 } 213 214 /** 215 * {@inheritDoc} 216 * Overridden to do nothing. 217 */ 218 @Override 219 protected void paintBackground(Graphics g) { 220 // Overriden to do nothing, all our painting is done from update/paint. 221 } 222 223 /** 224 * This method gets called when a bound property is changed 225 * on the associated JTextComponent. This is a hook 226 * which UI implementations may change to reflect how the 227 * UI displays bound properties of JTextComponent subclasses. 228 * This is implemented to do nothing (i.e. the response to 229 * properties in JTextComponent itself are handled prior 230 * to calling this method). 231 * 232 * @param evt the property change event 233 */ 234 @Override 235 protected void propertyChange(PropertyChangeEvent evt) { 236 if (evt.getPropertyName().equals("keymap")) { 237 if (evt.getNewValue() != null) 238 { 239 updateKBAction = false; 240 } else { 241 updateKBAction = true; 242 } 243 } 244 if (SynthLookAndFeel.shouldUpdateStyle(evt)) { 245 updateStyle((JTextComponent)evt.getSource(), updateKBAction); 246 } 247 super.propertyChange(evt); 248 } 249 250 /** 251 * {@inheritDoc} 252 */ 253 @Override 254 protected void installDefaults() { 255 // Installs the text cursor on the component 256 super.installDefaults(); 257 updateStyle(getComponent(), true); 258 getComponent().addFocusListener(handler); 259 } 260 261 /** 262 * {@inheritDoc} 263 */ 264 @Override 265 protected void uninstallDefaults() { 266 SynthContext context = getContext(getComponent(), ENABLED); 267 268 getComponent().putClientProperty("caretAspectRatio", null); 269 getComponent().removeFocusListener(handler); 270 271 style.uninstallDefaults(context); 272 style = null; 273 super.uninstallDefaults(); 274 } 275 276 private final class Handler implements FocusListener { 277 public void focusGained(FocusEvent e) { 278 getComponent().repaint(); 279 } 280 281 public void focusLost(FocusEvent e) { 282 getComponent().repaint(); 283 } 284 } 285 }