Initial revision
From-SVN: r102074
This commit is contained in:
Tom Tromey
parent
6f4434b39b
commit
f911ba985a
4557 changed files with 1000262 additions and 0 deletions
842
libjava/classpath/javax/swing/UIDefaults.java
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libjava/classpath/javax/swing/UIDefaults.java
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/* UIDefaults.java -- database for all settings and interface bindings.
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Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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||||
along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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||||
module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing;
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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.Font;
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import java.awt.Insets;
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import java.beans.PropertyChangeListener;
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import java.beans.PropertyChangeSupport;
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import java.lang.reflect.Method;
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import java.util.Hashtable;
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import java.util.LinkedList;
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import java.util.ListIterator;
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import java.util.Locale;
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import java.util.MissingResourceException;
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import java.util.ResourceBundle;
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import javax.swing.border.Border;
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import javax.swing.plaf.ComponentUI;
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/**
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* UIDefaults is a database where all settings and interface bindings are
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* stored into. A PLAF implementation fills one of these (see for example
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* plaf/basic/BasicLookAndFeel.java) with "ButtonUI" -> new BasicButtonUI().
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*
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* @author Ronald Veldema (rveldema@cs.vu.nl)
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*/
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public class UIDefaults extends Hashtable
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{
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/** Our ResourceBundles. */
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private LinkedList bundles;
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/** The default locale. */
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private Locale defaultLocale;
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/** We use this for firing PropertyChangeEvents. */
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private PropertyChangeSupport propertyChangeSupport;
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/**
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* Used for lazy instantiation of UIDefaults values so that they are not
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* all loaded when a Swing application starts up, but only the values that
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* are really needed. An <code>ActiveValue</code> is newly instantiated
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* every time when the value is requested, as opposed to the normal
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* {@link LazyValue} that is only instantiated once.
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*/
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public static interface ActiveValue
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{
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Object createValue(UIDefaults table);
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}
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public static class LazyInputMap implements LazyValue
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{
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Object[] bind;
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public LazyInputMap(Object[] bindings)
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{
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bind = bindings;
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}
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public Object createValue(UIDefaults table)
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{
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InputMap im = new InputMap ();
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for (int i = 0; 2*i+1 < bind.length; ++i)
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{
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im.put (KeyStroke.getKeyStroke ((String) bind[2*i]),
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bind[2*i+1]);
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}
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return im;
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}
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}
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/**
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* Used for lazy instantiation of UIDefaults values so that they are not
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* all loaded when a Swing application starts up, but only the values that
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* are really needed. A <code>LazyValue</code> is only instantiated once,
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* as opposed to the {@link ActiveValue} that is newly created every time
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* it is requested.
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*/
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public static interface LazyValue
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{
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Object createValue(UIDefaults table);
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}
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public static class ProxyLazyValue implements LazyValue
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{
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LazyValue inner;
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public ProxyLazyValue(String s)
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{
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final String className = s;
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inner = new LazyValue ()
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{
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public Object createValue (UIDefaults table)
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{
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try
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{
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return Class
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.forName(className)
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.getConstructor(new Class[] {})
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.newInstance(new Object[] {});
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}
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catch (Exception e)
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{
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return null;
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}
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}
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};
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}
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public ProxyLazyValue(String c, String m)
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{
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final String className = c;
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final String methodName = m;
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inner = new LazyValue ()
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{
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public Object createValue (UIDefaults table)
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{
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try
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{
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return Class
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.forName (className)
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.getMethod (methodName, new Class[] {})
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.invoke (null, new Object[] {});
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}
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catch (Exception e)
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{
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return null;
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}
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}
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};
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}
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public ProxyLazyValue(String c, Object[] os)
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{
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final String className = c;
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final Object[] objs = os;
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final Class[] clss = new Class[objs.length];
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for (int i = 0; i < objs.length; ++i)
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{
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clss[i] = objs[i].getClass();
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}
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inner = new LazyValue()
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{
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public Object createValue(UIDefaults table)
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{
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try
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{
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return Class
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.forName(className)
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.getConstructor(clss)
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.newInstance(objs);
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}
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catch (Exception e)
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{
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return null;
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}
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}
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};
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}
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public ProxyLazyValue(String c, String m, Object[] os)
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{
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final String className = c;
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final String methodName = m;
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final Object[] objs = os;
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final Class[] clss = new Class[objs.length];
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for (int i = 0; i < objs.length; ++i)
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{
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clss[i] = objs[i].getClass();
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}
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inner = new LazyValue()
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{
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public Object createValue(UIDefaults table)
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{
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try
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{
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return Class
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.forName(className)
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.getMethod(methodName, clss)
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.invoke(null, objs);
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}
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catch (Exception e)
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{
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return null;
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}
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}
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};
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}
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public Object createValue(UIDefaults table)
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{
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return inner.createValue(table);
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}
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}
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/** Our serialVersionUID for serialization. */
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private static final long serialVersionUID = 7341222528856548117L;
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/**
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* Constructs a new empty UIDefaults instance.
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*/
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public UIDefaults()
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{
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bundles = new LinkedList();
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defaultLocale = Locale.getDefault();
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propertyChangeSupport = new PropertyChangeSupport(this);
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}
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/**
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* Constructs a new UIDefaults instance and loads the specified entries.
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* The entries are expected to come in pairs, that means
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* <code>entries[0]</code> is a key, <code>entries[1]</code> is a value,
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* <code>entries[2]</code> a key and so forth.
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*
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* @param entries the entries to initialize the UIDefaults instance with
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*/
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public UIDefaults(Object[] entries)
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{
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this();
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for (int i = 0; (2 * i + 1) < entries.length; ++i)
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put(entries[2 * i], entries[2 * i + 1]);
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}
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/**
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* Returns the entry for the specified <code>key</code> in the default
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* locale.
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*
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* @return the entry for the specified <code>key</code>
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*/
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public Object get(Object key)
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{
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return this.get(key, getDefaultLocale());
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}
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/**
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* Returns the entry for the specified <code>key</code> in the Locale
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* <code>loc</code>.
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*
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* @param key the key for which we return the value
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* @param loc the locale
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*/
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public Object get(Object key, Locale loc)
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{
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Object obj = null;
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if (super.containsKey(key))
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{
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obj = super.get(key);
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}
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else if (key instanceof String)
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{
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String keyString = (String) key;
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ListIterator i = bundles.listIterator(0);
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while (i.hasNext())
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{
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String bundle_name = (String) i.next();
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ResourceBundle res =
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ResourceBundle.getBundle(bundle_name, loc);
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if (res != null)
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{
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try
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{
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obj = res.getObject(keyString);
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break;
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}
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catch (MissingResourceException me)
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{
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// continue, this bundle has no such key
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}
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}
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}
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}
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// now we've found the object, resolve it.
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// nb: LazyValues aren't supported in resource bundles, so it's correct
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// to insert their results in the locale-less hashtable.
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if (obj == null)
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return null;
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if (obj instanceof LazyValue)
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{
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Object resolved = ((LazyValue) obj).createValue(this);
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super.remove(key);
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super.put(key, resolved);
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return resolved;
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}
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else if (obj instanceof ActiveValue)
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{
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return ((ActiveValue) obj).createValue(this);
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}
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return obj;
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}
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/**
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* Puts a key and value into this UIDefaults object.<br>
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* In contrast to
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* {@link java.util.Hashtable}s <code>null</code>-values are accepted
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* here and treated like #remove(key).
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* <br>
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* This fires a PropertyChangeEvent with key as name and the old and new
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* values.
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*
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* @param key the key to put into the map
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* @param value the value to put into the map
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*
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* @return the old value for key or <code>null</code> if <code>key</code>
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* had no value assigned
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*/
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public Object put(Object key, Object value)
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{
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Object old = checkAndPut(key, value);
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if (key instanceof String && old != value)
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firePropertyChange((String) key, old, value);
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return old;
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}
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/**
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* Puts a set of key-value pairs into the map.
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* The entries are expected to come in pairs, that means
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* <code>entries[0]</code> is a key, <code>entries[1]</code> is a value,
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* <code>entries[2]</code> a key and so forth.
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* <br>
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* If a value is <code>null</code> it is treated like #remove(key).
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* <br>
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* This unconditionally fires a PropertyChangeEvent with
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* <code>'UIDefaults'</code> as name and <code>null</code> for
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* old and new value.
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*
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* @param entries the entries to be put into the map
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*/
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public void putDefaults(Object[] entries)
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{
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for (int i = 0; (2 * i + 1) < entries.length; ++i)
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{
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checkAndPut(entries[2 * i], entries[2 * i + 1]);
|
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}
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firePropertyChange("UIDefaults", null, null);
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}
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/**
|
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* Checks the value for <code>null</code> and put it into the Hashtable, if
|
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* it is not <code>null</code>. If the value is <code>null</code> then
|
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* remove the corresponding key.
|
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*
|
||||
* @param key the key to put into this UIDefauls table
|
||||
* @param value the value to put into this UIDefaults table
|
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*
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||||
* @return the old value for <code>key</code>
|
||||
*/
|
||||
private Object checkAndPut(Object key, Object value)
|
||||
{
|
||||
Object old;
|
||||
|
||||
if (value != null)
|
||||
old = super.put(key, value);
|
||||
else
|
||||
old = super.remove(key);
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||||
|
||||
return old;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a font entry for the default locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
*
|
||||
* @return the font entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Font getFont(Object key)
|
||||
{
|
||||
Object o = get(key);
|
||||
return o instanceof Font ? (Font) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a font entry for a specic locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
* @param locale the locale to the requested entry
|
||||
*
|
||||
* @return the font entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Font getFont(Object key, Locale l)
|
||||
{
|
||||
Object o = get(key, l);
|
||||
return o instanceof Font ? (Font) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a color entry for the default locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
*
|
||||
* @return the color entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Color getColor(Object key)
|
||||
{
|
||||
Object o = get(key);
|
||||
return o instanceof Color ? (Color) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a color entry for a specic locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
* @param locale the locale to the requested entry
|
||||
*
|
||||
* @return the color entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Color getColor(Object key, Locale l)
|
||||
{
|
||||
Object o = get(key, l);
|
||||
return o instanceof Color ? (Color) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an icon entry for the default locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
*
|
||||
* @return the icon entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Icon getIcon(Object key)
|
||||
{
|
||||
Object o = get(key);
|
||||
return o instanceof Icon ? (Icon) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an icon entry for a specic locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
* @param locale the locale to the requested entry
|
||||
*
|
||||
* @return the icon entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Icon getIcon(Object key, Locale l)
|
||||
{
|
||||
Object o = get(key, l);
|
||||
return o instanceof Icon ? (Icon) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a border entry for the default locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
*
|
||||
* @return the border entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Border getBorder(Object key)
|
||||
{
|
||||
Object o = get(key);
|
||||
return o instanceof Border ? (Border) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a border entry for a specic locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
* @param locale the locale to the requested entry
|
||||
*
|
||||
* @return the border entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Border getBorder(Object key, Locale l)
|
||||
{
|
||||
Object o = get(key, l);
|
||||
return o instanceof Border ? (Border) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a string entry for the default locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
*
|
||||
* @return the string entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public String getString(Object key)
|
||||
{
|
||||
Object o = get(key);
|
||||
return o instanceof String ? (String) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a string entry for a specic locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
* @param locale the locale to the requested entry
|
||||
*
|
||||
* @return the string entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public String getString(Object key, Locale l)
|
||||
{
|
||||
Object o = get(key, l);
|
||||
return o instanceof String ? (String) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an integer entry for the default locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
*
|
||||
* @return the integer entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public int getInt(Object key)
|
||||
{
|
||||
Object o = get(key);
|
||||
return o instanceof Integer ? ((Integer) o).intValue() : 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an integer entry for a specic locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
* @param locale the locale to the requested entry
|
||||
*
|
||||
* @return the integer entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public int getInt(Object key, Locale l)
|
||||
{
|
||||
Object o = get(key, l);
|
||||
return o instanceof Integer ? ((Integer) o).intValue() : 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a boolean entry for the default locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
*
|
||||
* @return the boolean entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public boolean getBoolean(Object key)
|
||||
{
|
||||
return Boolean.TRUE.equals(get(key));
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a boolean entry for a specic locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
* @param locale the locale to the requested entry
|
||||
*
|
||||
* @return the boolean entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public boolean getBoolean(Object key, Locale l)
|
||||
{
|
||||
return Boolean.TRUE.equals(get(key, l));
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an insets entry for the default locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
*
|
||||
* @return the insets entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Insets getInsets(Object key)
|
||||
{
|
||||
Object o = get(key);
|
||||
return o instanceof Insets ? (Insets) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an insets entry for a specic locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
* @param locale the locale to the requested entry
|
||||
*
|
||||
* @return the boolean entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Insets getInsets(Object key, Locale l)
|
||||
{
|
||||
Object o = get(key, l);
|
||||
return o instanceof Insets ? (Insets) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a dimension entry for the default locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
*
|
||||
* @return the dimension entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Dimension getDimension(Object key)
|
||||
{
|
||||
Object o = get(key);
|
||||
return o instanceof Dimension ? (Dimension) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a dimension entry for a specic locale.
|
||||
*
|
||||
* @param key the key to the requested entry
|
||||
* @param locale the locale to the requested entry
|
||||
*
|
||||
* @return the boolean entry for <code>key</code> or null if no such entry
|
||||
* exists
|
||||
*/
|
||||
public Dimension getDimension(Object key, Locale l)
|
||||
{
|
||||
Object o = get(key, l);
|
||||
return o instanceof Dimension ? (Dimension) o : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the ComponentUI class that renders a component. <code>id</code>
|
||||
* is the ID for which the String value of the classname is stored in
|
||||
* this UIDefaults map.
|
||||
*
|
||||
* @param id the ID of the UI class
|
||||
* @param loader the ClassLoader to use
|
||||
*
|
||||
* @return the UI class for <code>id</code>
|
||||
*/
|
||||
public Class getUIClass(String id, ClassLoader loader)
|
||||
{
|
||||
String className = (String) get (id);
|
||||
if (className == null)
|
||||
return null;
|
||||
try
|
||||
{
|
||||
if (loader != null)
|
||||
return loader.loadClass (className);
|
||||
return Class.forName (className);
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the ComponentUI class that renders a component. <code>id</code>
|
||||
* is the ID for which the String value of the classname is stored in
|
||||
* this UIDefaults map.
|
||||
*
|
||||
* @param id the ID of the UI class
|
||||
*
|
||||
* @return the UI class for <code>id</code>
|
||||
*/
|
||||
public Class getUIClass(String id)
|
||||
{
|
||||
return getUIClass (id, null);
|
||||
}
|
||||
|
||||
/**
|
||||
* If a key is requested in #get(key) that has no value, this method
|
||||
* is called before returning <code>null</code>.
|
||||
*
|
||||
* @param msg the error message
|
||||
*/
|
||||
protected void getUIError(String msg)
|
||||
{
|
||||
System.err.println ("UIDefaults.getUIError: " + msg);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the {@link ComponentUI} for the specified {@link JComponent}.
|
||||
*
|
||||
* @param target the component for which the ComponentUI is requested
|
||||
*
|
||||
* @return the {@link ComponentUI} for the specified {@link JComponent}
|
||||
*/
|
||||
public ComponentUI getUI(JComponent target)
|
||||
{
|
||||
String classId = target.getUIClassID ();
|
||||
Class cls = getUIClass (classId);
|
||||
if (cls == null)
|
||||
{
|
||||
getUIError ("failed to locate UI class:" + classId);
|
||||
return null;
|
||||
}
|
||||
|
||||
Method factory;
|
||||
|
||||
try
|
||||
{
|
||||
factory = cls.getMethod ("createUI", new Class[] { JComponent.class } );
|
||||
}
|
||||
catch (NoSuchMethodException nme)
|
||||
{
|
||||
getUIError ("failed to locate createUI method on " + cls.toString ());
|
||||
return null;
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
return (ComponentUI) factory.invoke (null, new Object[] { target });
|
||||
}
|
||||
catch (java.lang.reflect.InvocationTargetException ite)
|
||||
{
|
||||
getUIError ("InvocationTargetException ("+ ite.getTargetException()
|
||||
+") calling createUI(...) on " + cls.toString ());
|
||||
return null;
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
getUIError ("exception calling createUI(...) on " + cls.toString ());
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds a {@link PropertyChangeListener} to this UIDefaults map.
|
||||
* Registered PropertyChangeListener are notified when values
|
||||
* are beeing put into this UIDefaults map.
|
||||
*
|
||||
* @param listener the PropertyChangeListener to add
|
||||
*/
|
||||
public void addPropertyChangeListener(PropertyChangeListener listener)
|
||||
{
|
||||
propertyChangeSupport.addPropertyChangeListener(listener);
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes a PropertyChangeListener from this UIDefaults map.
|
||||
*
|
||||
* @param listener the PropertyChangeListener to remove
|
||||
*/
|
||||
public void removePropertyChangeListener(PropertyChangeListener listener)
|
||||
{
|
||||
propertyChangeSupport.removePropertyChangeListener(listener);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of all registered PropertyChangeListeners.
|
||||
*
|
||||
* @return all registered PropertyChangeListeners
|
||||
*/
|
||||
public PropertyChangeListener[] getPropertyChangeListeners()
|
||||
{
|
||||
return propertyChangeSupport.getPropertyChangeListeners();
|
||||
}
|
||||
|
||||
/**
|
||||
* Fires a PropertyChangeEvent.
|
||||
*
|
||||
* @param property the property name
|
||||
* @param oldValue the old value
|
||||
* @param newValue the new value
|
||||
*/
|
||||
protected void firePropertyChange(String property,
|
||||
Object oldValue, Object newValue)
|
||||
{
|
||||
propertyChangeSupport.firePropertyChange(property, oldValue, newValue);
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds a ResourceBundle for localized values.
|
||||
*
|
||||
* @param name the name of the ResourceBundle to add
|
||||
*/
|
||||
public void addResourceBundle(String name)
|
||||
{
|
||||
bundles.addFirst(name);
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes a ResourceBundle.
|
||||
*
|
||||
* @param name the name of the ResourceBundle to remove
|
||||
*/
|
||||
public void removeResourceBundle(String name)
|
||||
{
|
||||
bundles.remove(name);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the current locale to <code>loc</code>.
|
||||
*
|
||||
* @param loc the Locale to be set
|
||||
*/
|
||||
public void setDefaultLocale(Locale loc)
|
||||
{
|
||||
defaultLocale = loc;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the current default locale.
|
||||
*
|
||||
* @return the current default locale
|
||||
*/
|
||||
public Locale getDefaultLocale()
|
||||
{
|
||||
return defaultLocale;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue