/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2014 by RapidMiner and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapidminer.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see http://www.gnu.org/licenses/.
 */
package com.rapidminer.gui.new_plotter.engine.jfreechart.actions;

import java.awt.Point;
import java.awt.event.ActionEvent;

import com.rapidminer.gui.new_plotter.engine.jfreechart.JFreeChartPlotEngine;
import com.rapidminer.gui.new_plotter.gui.dialog.AddParallelLineDialog;
import com.rapidminer.gui.tools.ResourceAction;

/**
 * This action allows the user to add parallel lines (horizontal/vertical) to the current chart.
 * 
 * @author Marco Boeck
 *
 */
public class AddParallelLineAction extends ResourceAction {
	
	/** the {@link JFreeChartPlotEngine} instance for this action */
	private JFreeChartPlotEngine engine;
	
	/** the {@link Point} where the last popup click happened */
	private Point latestPopupLocation;
	
	
	/** the {@link AddParallelLineDialog} instance (used by all {@link AddParallelLineAction} instances) */
	private static AddParallelLineDialog dialog;
	
	private static final long serialVersionUID = 7788302558857099622L;
	
	
	/**
	 * Creates a new {@link ResourceAction} which opens the add parallel line configuration dialog
	 * when triggered. There a crosshair line can be configured and added to the chart.
	 * @param engine
	 */
	public AddParallelLineAction(JFreeChartPlotEngine engine) {
		super(true, "plotter.popup_menu.add_parallel_line");
		this.engine = engine;
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		addParallelLine(engine, latestPopupLocation);
	}
	
	/**
	 * Sets the location where the popup has been triggered.
	 * Used to determine the location of the line
	 * @param location
	 */
	public void setPopupLocation(Point location) {
		latestPopupLocation = location;
	}
	
	/**
	 * Opens the add parallel line configuration dialog and then adds the line the user specified.
	 * @param engine
	 * @param latestPopupLocation
	 */
	public static synchronized void addParallelLine(final JFreeChartPlotEngine engine, Point latestPopupLocation) {
		if (dialog == null) {
			dialog = new AddParallelLineDialog();
		}

		dialog.setMousePosition(latestPopupLocation);
		dialog.setChartEngine(engine);
		dialog.showDialog();
	}

}