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RText is a powerful, cross-platform programmer's text editor written in Java. It is designed to be easy to use, highly customizable and flexible. Part of RText's design is for the source code to be simple, easy to understand, and well documented, so that other programmers can look into its inner-workings and figure out how RText ticks with ease. A good place to start (besides the source code) is the Javadoc for all classes used in the project.

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/*
 * 08/27/2011
 *
 * StopAction.java - Stops the currently running tool.
 * Copyright (C) 2011 Robert Futrell
 * http://fifesoft.com/rtext
 * Licensed under a modified BSD license.
 * See the included license file for details.
 */
package org.fife.rtext.plugins.tools;

import java.awt.event.ActionEvent;
import java.util.ResourceBundle;
import javax.swing.ImageIcon;

import org.fife.ui.app.StandardAction;


/**
 * Stops the currently running tool.
 *
 * @author Robert Futrell
 * @version 1.0
 */
public class StopAction extends StandardAction {

	/**
	 * The parent plugin.
	 */
	private ToolPlugin plugin;


	/**
	 * Constructor.
	 *
	 * @param plugin The parent plugin.
	 * @param msg The resource bundle to use for localization.
	 */
	public StopAction(ToolPlugin plugin, ResourceBundle msg) {
		super(plugin.getRText(), msg, "Action.StopTool");
		setIcon(new ImageIcon(getClass().getResource("stop.png")));
		setEnabled(false);
		this.plugin = plugin;
	}


	/**
	 * Called when this action is performed.
	 *
	 * @param e The event.
	 */
	public void actionPerformed(ActionEvent e) {
		Tool tool = plugin.getActiveTool();
		if (tool!=null) { // Should always be true
			tool.kill();
		}
	}


}