jwo.utils.gui
Class GUIHandler

java.lang.Object
  java.util.logging.Handler
      java.util.logging.StreamHandler
          jwo.utils.gui.GUIHandler

public class GUIHandler
extends StreamHandler

Creates a frame containing logger output. This is updated dynamically whenever a call to a logger that has registered this handler is made.

Version:

2.3, 8th July, 2006.

Author:

Jo Wood

Constructor Summary

GUIHandler()
Creates a GUI in which logger output is placed.

Method Summary

void	addStyle(String text, Style style) Adds a style that is triggered by the appearance of the given text.
Style	getDefaultStyle() Reports the default style used for console output.
JFrame	getGUI() Retrieves the GUI used to report logging output.
void	publish(LogRecord record) Publishes a LogRecord to a GUI.

Methods inherited from class java.util.logging.StreamHandler

close, flush, isLoggable, setEncoding, setOutputStream

Methods inherited from class java.util.logging.Handler

getEncoding, getErrorManager, getFilter, getFormatter, getLevel, reportError, setErrorManager, setFilter, setFormatter, setLevel

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GUIHandler

public GUIHandler()

Creates a GUI in which logger output is placed.

Method Detail

addStyle

public void addStyle(String text,
                     Style style)

Adds a style that is triggered by the appearance of the given text.

Parameters:

text - Text to trigger style.

style - Style to be associated with any lines of output containing the text.

getDefaultStyle

public Style getDefaultStyle()

Reports the default style used for console output. This can be useful when adding further text triggered styles as they can inherit this default style.

Returns:

Default style used to display text in console.

publish

public void publish(LogRecord record)

Publishes a LogRecord to a GUI. The logging request was made initially to a Logger object, which initialized the LogRecord and forwarded it here.

Overrides:

publish in class StreamHandler

Parameters:

record - Description of the log event.

getGUI

public JFrame getGUI()

Retrieves the GUI used to report logging output.

Returns:

Frame holding console output.