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/*
* Copyright 1999 Phil Burk, Mobileer Inc
*
* Licensed 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 com.softsynth.util;
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Font;
import java.awt.Frame;
import java.awt.TextArea;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
* TextOutput sends text to System.out and/or a TextArea.
*
* @author Phil Burk (C) 1999 SoftSynth.com
*/
public class TextOutput extends Frame {
private static final long serialVersionUID = 1L;
/** Maximum number of characters allowed in TextArea. */
public int maxChars = (8 * 1024);
int numChars = 0;
static TextOutput staticTextOutput;
static Logger logger;
boolean isTextAreaEnabled = true;
boolean isSystemOutEnabled = true;
TextArea textArea;
Button buttonClear;
String lineTerminator = System.getProperty("line.separator", "\n");
public TextOutput() {
super("Text Output");
setSize(620, 400);
setLayout(new BorderLayout());
textArea = new TextArea("", 30, 120, TextArea.SCROLLBARS_BOTH);
textArea.setEditable(false);
textArea.setFont(Font.getFont("Monospaced-18")); // FIXME - why doesn't this work???
add("Center", textArea);
add("South", buttonClear = new Button("Clear"));
buttonClear.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
textArea.setText("");
numChars = 0;
}
});
/* If user tries to close window, hide dialog. */
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
hide();
}
});
}
public void setTextAreaEnable(boolean enabled) {
isTextAreaEnabled = enabled;
}
public void setSystemOutEnable(boolean enabled) {
isSystemOutEnabled = enabled;
}
/**
* Append text to the display area. If the TextArea gets full, then remove 1/4 of the text.
*/
private void append(String text) {
int len = text.length();
if ((numChars + len) > maxChars) {
int numKill = maxChars / 4;
/* Delete 1/4 the buffer. */
textArea.replaceRange("", 0, numKill);
numChars -= numKill;
}
textArea.append(text);
numChars += len;
}
public void log(String msg) {
if (isSystemOutEnabled)
System.out.print(msg);
if (isTextAreaEnabled)
append(msg);
}
public void logln(String msg) {
log(msg);
logln();
}
/* Just output a new line. */
public void logln() {
if (isSystemOutEnabled)
System.out.println();
if (isTextAreaEnabled)
append(lineTerminator);
}
/**
* Set a Logger to be used for directing a copy of the output to a log file.
*/
public static void setLogger(Logger lgr) {
logger = lgr;
}
public static Logger getLogger() {
return logger;
}
public static void print(String msg) {
if (staticTextOutput != null)
staticTextOutput.log(msg);
else
System.out.print(msg);
if (logger != null)
logger.log(msg);
}
public static void println(String msg) {
if (staticTextOutput != null)
staticTextOutput.logln(msg);
else
System.out.println(msg);
if (logger != null)
logger.logln(msg);
}
public static void println() {
if (staticTextOutput != null)
staticTextOutput.logln();
else
System.out.println();
if (logger != null)
logger.logln();
}
public static void error(String msg) {
println("ERROR: " + msg);
throw new RuntimeException(msg);
}
public static void setStaticLocation(int x, int y) {
getStaticInstance().setLocation(x, y);
}
// TODO - why can't this be called from Wire?
public static TextOutput getStaticInstance() {
if (staticTextOutput == null) {
staticTextOutput = new TextOutput();
staticTextOutput.setLocation(30, 0);
}
return staticTextOutput;
}
public static void open() {
getStaticInstance().setVisible(true);
}
public static void close() {
if (staticTextOutput != null)
staticTextOutput.setVisible(false);
}
public static void bringToFront() {
if (staticTextOutput != null)
staticTextOutput.toFront();
}
}
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