1/* 2 * Copyright (c) 2002, 2013, 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 26package javax.swing.plaf.synth; 27 28import java.awt.*; 29import javax.swing.*; 30import javax.swing.text.*; 31import javax.swing.plaf.*; 32import javax.swing.plaf.basic.BasicEditorPaneUI; 33import java.beans.PropertyChangeEvent; 34 35/** 36 * Provides the Synth L&F UI delegate for 37 * {@link javax.swing.JEditorPane}. 38 * 39 * @author Shannon Hickey 40 * @since 1.7 41 */ 42public class SynthEditorPaneUI extends BasicEditorPaneUI implements SynthUI { 43 private SynthStyle style; 44 /* 45 * I would prefer to use UIResource instad of this. 46 * Unfortunately Boolean is a final class 47 */ 48 private Boolean localTrue = Boolean.TRUE; 49 50 /** 51 * Creates a new UI object for the given component. 52 * 53 * @param c component to create UI object for 54 * @return the UI object 55 */ 56 public static ComponentUI createUI(JComponent c) { 57 return new SynthEditorPaneUI(); 58 } 59 60 /** 61 * {@inheritDoc} 62 */ 63 @Override 64 protected void installDefaults() { 65 // Installs the text cursor on the component 66 super.installDefaults(); 67 JComponent c = getComponent(); 68 Object clientProperty = 69 c.getClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES); 70 if (clientProperty == null) { 71 c.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, localTrue); 72 } 73 updateStyle(getComponent()); 74 } 75 76 /** 77 * {@inheritDoc} 78 */ 79 @Override 80 protected void uninstallDefaults() { 81 SynthContext context = getContext(getComponent(), ENABLED); 82 JComponent c = getComponent(); 83 c.putClientProperty("caretAspectRatio", null); 84 85 style.uninstallDefaults(context); 86 style = null; 87 88 Object clientProperty = 89 c.getClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES); 90 if (clientProperty == localTrue) { 91 c.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, 92 Boolean.FALSE); 93 } 94 super.uninstallDefaults(); 95 } 96 97 /** 98 * This method gets called when a bound property is changed 99 * on the associated JTextComponent. This is a hook 100 * which UI implementations may change to reflect how the 101 * UI displays bound properties of JTextComponent subclasses. 102 * This is implemented to rebuild the ActionMap based upon an 103 * EditorKit change. 104 * 105 * @param evt the property change event 106 */ 107 @Override 108 protected void propertyChange(PropertyChangeEvent evt) { 109 if (SynthLookAndFeel.shouldUpdateStyle(evt)) { 110 updateStyle((JTextComponent)evt.getSource()); 111 } 112 super.propertyChange(evt); 113 } 114 115 private void updateStyle(JTextComponent comp) { 116 SynthContext context = getContext(comp, ENABLED); 117 SynthStyle oldStyle = style; 118 119 style = SynthLookAndFeel.updateStyle(context, this); 120 121 if (style != oldStyle) { 122 SynthTextFieldUI.updateStyle(comp, context, getPropertyPrefix()); 123 124 if (oldStyle != null) { 125 uninstallKeyboardActions(); 126 installKeyboardActions(); 127 } 128 } 129 } 130 131 /** 132 * {@inheritDoc} 133 */ 134 @Override 135 public SynthContext getContext(JComponent c) { 136 return getContext(c, getComponentState(c)); 137 } 138 139 private SynthContext getContext(JComponent c, int state) { 140 return SynthContext.getContext(c, style, state); 141 } 142 143 private int getComponentState(JComponent c) { 144 return SynthLookAndFeel.getComponentState(c); 145 } 146 147 /** 148 * Notifies this UI delegate to repaint the specified component. 149 * This method paints the component background, then calls 150 * the {@link #paint(SynthContext,Graphics)} method. 151 * 152 * <p>In general, this method does not need to be overridden by subclasses. 153 * All Look and Feel rendering code should reside in the {@code paint} method. 154 * 155 * @param g the {@code Graphics} object used for painting 156 * @param c the component being painted 157 * @see #paint(SynthContext,Graphics) 158 */ 159 @Override 160 public void update(Graphics g, JComponent c) { 161 SynthContext context = getContext(c); 162 163 SynthLookAndFeel.update(context, g); 164 paintBackground(context, g, c); 165 paint(context, g); 166 } 167 168 /** 169 * Paints the specified component. 170 * 171 * @param context context for the component being painted 172 * @param g the {@code Graphics} object used for painting 173 * @see #update(Graphics,JComponent) 174 */ 175 protected void paint(SynthContext context, Graphics g) { 176 super.paint(g, getComponent()); 177 } 178 179 /** 180 * {@inheritDoc} 181 */ 182 @Override 183 protected void paintBackground(Graphics g) { 184 // Overriden to do nothing, all our painting is done from update/paint. 185 } 186 187 void paintBackground(SynthContext context, Graphics g, JComponent c) { 188 context.getPainter().paintEditorPaneBackground(context, g, 0, 0, 189 c.getWidth(), c.getHeight()); 190 } 191 192 /** 193 * {@inheritDoc} 194 */ 195 @Override 196 public void paintBorder(SynthContext context, Graphics g, int x, 197 int y, int w, int h) { 198 context.getPainter().paintEditorPaneBorder(context, g, x, y, w, h); 199 } 200} 201