/*
* 02/06/2011
*
* ActiveLineRangeListener.java - Listens for "active line range" changes
* in an RSyntaxTextArea.
*
* This library is distributed under a modified BSD license. See the included
* RSyntaxTextArea.License.txt file for details.
*/
package org.fife.ui.rsyntaxtextarea;
import java.util.EventListener;
/**
* Listens for "active line range" events from an <code>RSyntaxTextArea</code>.
* If a text area contains some semantic knowledge of the programming language
* being edited, it may broadcast {@link ActiveLineRangeEvent}s whenever the
* caret moves into a new "block" of code. Listeners can listen for these
* events and respond accordingly.<p>
*
* See the <code>RSTALanguageSupport</code> project at
* <a href="http://fifesoft.com">http://fifesoft.com</a> for some
* <code>LanguageSupport</code> implementations that may broadcast these
* events. Note that if an RSTA/LanguageSupport does not support broadcasting
* these events, the listener will simply never receive any notifications.
*
* @author Robert Futrell
* @version 1.0
*/
public interface ActiveLineRangeListener extends EventListener {
/**
* Called whenever the "active line range" changes.
*
* @param e Information about the line range change. If there is no longer
* an "active line range," the "minimum" and "maximum" line values
* should both be <code>-1</code>.
*/
public void activeLineRangeChanged(ActiveLineRangeEvent e);
}