/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements.  See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License.  You may obtain a copy of the License at *  *      http://www.apache.org/licenses/LICENSE-2.0 *  * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package org.apache.log4j.gui.examples;import java.awt.BorderLayout;import java.awt.event.*;import javax.swing.*;import org.apache.log4j.*;import org.apache.log4j.gui.*;public class TextPaneAppenderExample implements ActionListener {    JFrame mainframe;    ButtonGroup priorities;    TextPaneAppender tpa;    Category gui;    Priority prio[];    JTabbedPane logview;            public TextPaneAppenderExample () {	mainframe = new JFrame("Testing the TextPaneAppender...");	mainframe.setSize(300,300);	logview = new JTabbedPane();	createLogger();	createMenuBar();	mainframe.setVisible(true);	mainframe.getContentPane().add(logview);    }    public void createLogger() {	tpa = new TextPaneAppender(new PatternLayout("%-5p %d [%t]:  %m%n"),"Debug");	logview.addTab("Events ...",new JScrollPane(tpa.getTextPane()));	gui = Category.getInstance(this.getClass().getName());	gui.addAppender(tpa);    }        public void createMenuBar() {	JMenu file = new JMenu("File");	JMenuItem exit = new JMenuItem("Exit");	exit.addActionListener(new ActionListener() {		public void actionPerformed(ActionEvent ae) {		    System.exit(0);		}	    });	file.add(exit);	JMenuBar mb = new JMenuBar();	mb.add(file);		JMenu logevent = new JMenu("LoggingEvents");	JMenu selectprio = new JMenu("Priority");		prio = Priority.getAllPossiblePriorities();	JRadioButtonMenuItem priority[]= new JRadioButtonMenuItem[prio.length];	priorities = new ButtonGroup();		for (int i=0; i<prio.length;i++) {	    if (i==0)		priority[i] = new JRadioButtonMenuItem(prio[i].toString(),true);	    else		priority[i] = new JRadioButtonMenuItem(prio[i].toString());	    priority[i].setActionCommand(prio[i].toString());	    selectprio.add(priority[i]);	    priorities.add(priority[i]);	}		logevent.add(selectprio);		JMenuItem lognow = new JMenuItem("LogIt!");	lognow.addActionListener(this);	logevent.add(lognow);		mb.add(logevent);		mainframe.setJMenuBar(mb);	    }        public void actionPerformed(ActionEvent ae){	String logtext = JOptionPane.showInputDialog("Text to log");	if (logtext == null) logtext="NO Input";	int i=0;	String name = priorities.getSelection().getActionCommand();	while (!prio[i].toString().equals(name))	    i=i+1;	gui.log(prio[i],logtext);    }    static public void main(String args[]) {	TextPaneAppenderExample tpex = new TextPaneAppenderExample();    }    }