J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2002-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package javax.swing.plaf.synth; |
| 27 | |
| 28 | import javax.swing.*; |
| 29 | import javax.swing.text.*; |
| 30 | import javax.swing.event.*; |
| 31 | import javax.swing.plaf.*; |
| 32 | import javax.swing.plaf.basic.BasicTextAreaUI; |
| 33 | import java.awt.*; |
| 34 | import java.beans.PropertyChangeEvent; |
| 35 | import sun.swing.plaf.synth.SynthUI; |
| 36 | |
| 37 | /** |
| 38 | * Provides the look and feel for a plain text editor in the |
| 39 | * Synth look and feel. In this implementation the default UI |
| 40 | * is extended to act as a simple view factory. |
| 41 | * <p> |
| 42 | * <strong>Warning:</strong> |
| 43 | * Serialized objects of this class will not be compatible with |
| 44 | * future Swing releases. The current serialization support is |
| 45 | * appropriate for short term storage or RMI between applications running |
| 46 | * the same version of Swing. As of 1.4, support for long term storage |
| 47 | * of all JavaBeans<sup><font size="-2">TM</font></sup> |
| 48 | * has been added to the <code>java.beans</code> package. |
| 49 | * Please see {@link java.beans.XMLEncoder}. |
| 50 | * |
| 51 | * @author Shannon Hickey |
| 52 | */ |
| 53 | class SynthTextAreaUI extends BasicTextAreaUI implements SynthUI { |
| 54 | private SynthStyle style; |
| 55 | |
| 56 | /** |
| 57 | * Creates a UI for a JTextArea. |
| 58 | * |
| 59 | * @param ta a text area |
| 60 | * @return the UI |
| 61 | */ |
| 62 | public static ComponentUI createUI(JComponent ta) { |
| 63 | return new SynthTextAreaUI(); |
| 64 | } |
| 65 | |
| 66 | protected void installDefaults() { |
| 67 | // Installs the text cursor on the component |
| 68 | super.installDefaults(); |
| 69 | updateStyle((JTextComponent)getComponent()); |
| 70 | } |
| 71 | |
| 72 | protected void uninstallDefaults() { |
| 73 | SynthContext context = getContext(getComponent(), ENABLED); |
| 74 | |
| 75 | getComponent().putClientProperty("caretAspectRatio", null); |
| 76 | |
| 77 | style.uninstallDefaults(context); |
| 78 | context.dispose(); |
| 79 | style = null; |
| 80 | super.uninstallDefaults(); |
| 81 | } |
| 82 | |
| 83 | public void installUI(JComponent c) { |
| 84 | super.installUI(c); |
| 85 | } |
| 86 | |
| 87 | private void updateStyle(JTextComponent comp) { |
| 88 | SynthContext context = getContext(comp, ENABLED); |
| 89 | SynthStyle oldStyle = style; |
| 90 | |
| 91 | style = SynthLookAndFeel.updateStyle(context, this); |
| 92 | |
| 93 | if (style != oldStyle) { |
| 94 | SynthTextFieldUI.updateStyle(comp, context, getPropertyPrefix()); |
| 95 | |
| 96 | if (oldStyle != null) { |
| 97 | uninstallKeyboardActions(); |
| 98 | installKeyboardActions(); |
| 99 | } |
| 100 | } |
| 101 | context.dispose(); |
| 102 | } |
| 103 | |
| 104 | public SynthContext getContext(JComponent c) { |
| 105 | return getContext(c, getComponentState(c)); |
| 106 | } |
| 107 | |
| 108 | private SynthContext getContext(JComponent c, int state) { |
| 109 | return SynthContext.getContext(SynthContext.class, c, |
| 110 | SynthLookAndFeel.getRegion(c), style, state); |
| 111 | } |
| 112 | |
| 113 | private int getComponentState(JComponent c) { |
| 114 | return SynthLookAndFeel.getComponentState(c); |
| 115 | } |
| 116 | |
| 117 | public void update(Graphics g, JComponent c) { |
| 118 | SynthContext context = getContext(c); |
| 119 | |
| 120 | SynthLookAndFeel.update(context, g); |
| 121 | context.getPainter().paintTextAreaBackground(context, |
| 122 | g, 0, 0, c.getWidth(), c.getHeight()); |
| 123 | paint(context, g); |
| 124 | context.dispose(); |
| 125 | } |
| 126 | |
| 127 | protected void paint(SynthContext context, Graphics g) { |
| 128 | super.paint(g, getComponent()); |
| 129 | } |
| 130 | |
| 131 | protected void paintBackground(Graphics g) { |
| 132 | // Overriden to do nothing, all our painting is done from update/paint. |
| 133 | } |
| 134 | |
| 135 | public void paintBorder(SynthContext context, Graphics g, int x, |
| 136 | int y, int w, int h) { |
| 137 | context.getPainter().paintTextAreaBorder(context, g, x, y, w, h); |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * This method gets called when a bound property is changed |
| 142 | * on the associated JTextComponent. This is a hook |
| 143 | * which UI implementations may change to reflect how the |
| 144 | * UI displays bound properties of JTextComponent subclasses. |
| 145 | * This is implemented to rebuild the View when the |
| 146 | * <em>WrapLine</em> or the <em>WrapStyleWord</em> property changes. |
| 147 | * |
| 148 | * @param evt the property change event |
| 149 | */ |
| 150 | protected void propertyChange(PropertyChangeEvent evt) { |
| 151 | if (SynthLookAndFeel.shouldUpdateStyle(evt)) { |
| 152 | updateStyle((JTextComponent)evt.getSource()); |
| 153 | } |
| 154 | super.propertyChange(evt); |
| 155 | } |
| 156 | } |