/*
 *  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.operatortree.actions;

import java.awt.event.ActionEvent;

import com.rapidminer.BreakpointListener;
import com.rapidminer.gui.actions.Actions;
import com.rapidminer.gui.actions.ToggleAction;
import com.rapidminer.operator.Operator;
import com.rapidminer.operator.ProcessRootOperator;

/**
 * Start the corresponding action.
 * 
 * @author Ingo Mierswa, Tobias Malbrecht
 */
public class ToggleBreakpointItem extends ToggleAction {

	private static final long serialVersionUID = 1727841552148351670L;

	private final Actions actions;

	private final int position;

	{
		setCondition(OPERATOR_SELECTED, MANDATORY);
		setCondition(ROOT_SELECTED, DISALLOWED);
	}

	public ToggleBreakpointItem(final Actions actions, final int position) {
		super(true, "breakpoint_" + BreakpointListener.BREAKPOINT_POS_NAME[position]);

		this.actions = actions;
		this.position = position;
	}

	@Override
	public void actionToggled(ActionEvent e) {
		Operator op = this.actions.getFirstSelectedOperator();
		// don't allow breakpoints for ProcessRootOperator
		if (op != null && !(op instanceof ProcessRootOperator)) {
			op.setBreakpoint(position, !op.hasBreakpoint(position));
		}
		// compatibility clause to revoke breakpoints set before the fix above
		if (op != null && op instanceof ProcessRootOperator && op.hasBreakpoint(position)) {
			op.setBreakpoint(position, false);
		}

		// TODO: toggle (rather set to common state!) all operators would be nice
		// for (Operator op : this.actions.getSelectedOperators()) {
		// op.setBreakpoint(position, !op.hasBreakpoint(position));
		// }
	}
}