mirror of git://gcc.gnu.org/git/gcc.git
281 lines
10 KiB
Java
281 lines
10 KiB
Java
/* DefaultFormatterFactory.java -- FIXME: briefly describe file purpose
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Copyright (C) 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.text;
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import java.io.Serializable;
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import javax.swing.JFormattedTextField;
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import javax.swing.JFormattedTextField.AbstractFormatter;
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import javax.swing.JFormattedTextField.AbstractFormatterFactory;
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/**
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* This class is Swing's only concrete implementation of
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* JFormattedTextField.AbstractFormatterFactory. It holds several
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* formatters and determines the best one to be used based on the
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* passed-in value from the text field.
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*
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* @author Anthony Balkissoon abalkiss at redhat dot com
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* @since 1.4
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*/
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public class DefaultFormatterFactory extends AbstractFormatterFactory implements
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Serializable
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{
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/**
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* The default formatter.
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**/
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AbstractFormatter defaultFormatter;
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/**
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* The formatter to use when the JFormattedTextField has focus and either the
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* value isn't null or the value is null but no <code>nullFormatter</code>
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* has been specified.
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*/
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AbstractFormatter editFormatter;
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/**
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* The formatter to use when the JFormattedTextField doesn't havefocus and
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* either the value isn't null or the value is null but no
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* <code>nullFormatter</code> has been specified.
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*/
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AbstractFormatter displayFormatter;
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/**
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* The formatter to use when the value of the JFormattedTextField is null.
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*/
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AbstractFormatter nullFormatter;
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/**
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* Creates a DefaultFormatterFactory with no formatters
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*/
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public DefaultFormatterFactory()
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{
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// Nothing to be done here.
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}
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/**
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* Creates a new DefaultFormatterFactory with the specified formatters.
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* @param defaultFormat the formatter to use if no other appropriate non-null
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* formatted can be found.
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*/
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public DefaultFormatterFactory(AbstractFormatter defaultFormat)
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{
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defaultFormatter = defaultFormat;
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}
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/**
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* Creates a new DefaultFormatterFactory with the specified formatters.
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* @param defaultFormat the formatter to use if no other appropriate non-null
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* formatted can be found.
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* @param displayFormat the formatter to use if the JFormattedTextField
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* doesn't have focus and either the value is not null or the value is null
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* but no <code>nullFormatter</code> has been specified.
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*/
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public DefaultFormatterFactory(AbstractFormatter defaultFormat,
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AbstractFormatter displayFormat)
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{
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defaultFormatter = defaultFormat;
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displayFormatter = displayFormat;
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}
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/**
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* Creates a new DefaultFormatterFactory with the specified formatters.
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* @param defaultFormat the formatter to use if no other appropriate non-null
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* formatted can be found.
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* @param displayFormat the formatter to use if the JFormattedTextField
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* doesn't have focus and either the value is not null or the value is null
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* but no <code>nullFormatter</code> has been specified.
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* @param editFormat the formatter to use if the JFormattedTextField has
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* focus and either the value is not null or the value is null but not
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* <code>nullFormatter</code> has been specified.
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*/
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public DefaultFormatterFactory(AbstractFormatter defaultFormat,
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AbstractFormatter displayFormat,
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AbstractFormatter editFormat)
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{
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defaultFormatter = defaultFormat;
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displayFormatter = displayFormat;
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editFormatter = editFormat;
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}
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/**
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* Creates a new DefaultFormatterFactory with the specified formatters.
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* @param defaultFormat the formatter to use if no other appropriate non-null
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* formatted can be found.
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* @param displayFormat the formatter to use if the JFormattedTextField
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* doesn't have focus and either the value is not null or the value is null
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* but no <code>nullFormatter</code> has been specified.
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* @param editFormat the formatter to use if the JFormattedTextField has
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* focus and either the value is not null or the value is null but not
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* <code>nullFormatter</code> has been specified.
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* @param nullFormat the formatter to use when the value of the
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* JFormattedTextField is null.
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*/
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public DefaultFormatterFactory(AbstractFormatter defaultFormat,
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AbstractFormatter displayFormat,
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AbstractFormatter editFormat,
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AbstractFormatter nullFormat)
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{
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defaultFormatter = defaultFormat;
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displayFormatter = displayFormat;
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editFormatter = editFormat;
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nullFormatter = nullFormat;
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}
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/**
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* Returns the formatted to be used if no other appropriate non-null
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* formatter can be found.
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* @return the formatted to be used if no other appropriate non-null
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* formatter can be found.
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*/
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public AbstractFormatter getDefaultFormatter()
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{
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return defaultFormatter;
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}
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/**
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* Sets the formatted to be used if no other appropriate non-null formatter
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* can be found.
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* @param defaultFormatter the formatted to be used if no other appropriate
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* non-null formatter can be found.
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*/
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public void setDefaultFormatter(AbstractFormatter defaultFormatter)
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{
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this.defaultFormatter = defaultFormatter;
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}
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/**
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* Gets the <code>displayFormatter</code>. This is the formatter to use if
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* the JFormattedTextField is not being edited and either the value is not
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* null or the value is null and no <code>nullFormatter<code> has been
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* specified.
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* @return the formatter to use if
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* the JFormattedTextField is not being edited and either the value is not
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* null or the value is null and no <code>nullFormatter<code> has been
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* specified.
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*/
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public AbstractFormatter getDisplayFormatter()
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{
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return displayFormatter;
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}
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/**
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* Sets the <code>displayFormatter</code>. This is the formatter to use if
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* the JFormattedTextField is not being edited and either the value is not
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* null or the value is null and no <code>nullFormatter<code> has been
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* specified.
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* @param displayFormatter the formatter to use.
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*/
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public void setDisplayFormatter(AbstractFormatter displayFormatter)
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{
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this.displayFormatter = displayFormatter;
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}
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/**
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* Gets the <code>editFormatter</code>. This is the formatter to use if the
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* JFormattedTextField is being edited and either the value is not null or
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* the value is null and no <code>nullFormatter<code> has been specified.
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* @return the formatter to use if the JFormattedTextField is being edited
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* and the value is not null or the value is null but no nullFormatted has
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* been specified.
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*/
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public AbstractFormatter getEditFormatter()
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{
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return editFormatter;
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}
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/**
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* Sets the <code>editFormatter</code>. This is the formatter to use if the
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* JFormattedTextField is being edited and either the value is not null or
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* the value is null and no <code>nullFormatter<code> has been specified.
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* @param editFormatter the formatter to use.
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*/
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public void setEditFormatter(AbstractFormatter editFormatter)
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{
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this.editFormatter = editFormatter;
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}
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/**
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* Gets the formatter to use if the value of the JFormattedTextField is null.
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* @return the formatter to use for null values.
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*/
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public AbstractFormatter getNullFormatter()
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{
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return nullFormatter;
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}
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/**
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* Sets the <code>nullFormatter</code>. This is the formatter to use if the
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* value of the JFormattedTextField is null.
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* @param nullFormatter the formatter to use for null values.
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*/
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public void setNullFormatter(AbstractFormatter nullFormatter)
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{
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this.nullFormatter = nullFormatter;
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}
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/**
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* Returns the appropriate formatter based on the state of
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* <code>tf</code>. If <code>tf<code> is null we return null, otherwise
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* we return one of the following:
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* 1. Returns <code>nullFormatter</code> if <code>tf.getValue()</code> is
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* null and <code>nullFormatter</code> is not.
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* 2. Returns <code>editFormatter</code> if <code>tf.hasFocus()</code> is
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* true and <code>editFormatter</code> is not null.
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* 3. Returns <code>displayFormatter</code> if <code>tf.hasFocus()</code> is
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* false and <code>displayFormatter</code> is not null.
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* 4. Otherwise returns <code>defaultFormatter</code>.
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*/
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public AbstractFormatter getFormatter(JFormattedTextField tf)
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{
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if (tf == null)
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return null;
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if (tf.getValue() == null && nullFormatter != null)
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return nullFormatter;
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if (tf.hasFocus() && editFormatter != null)
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return editFormatter;
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if (!tf.hasFocus() && displayFormatter != null)
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return displayFormatter;
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return defaultFormatter;
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}
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}
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