/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2008 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.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.look.fc;

import java.awt.Rectangle;
import java.util.Enumeration;

/**
 * A thread for dragging.
 *
 * @author Ingo Mierswa
 * @version $Id: DragSelectionThread.java,v 1.3 2008/07/01 14:16:13 ingomierswa Exp $
 */
public class DragSelectionThread implements Runnable {

	private FileList fileList;

	private Rectangle rect;

	private int callCounts = 0;

	
	public DragSelectionThread(ItemPanel p, FileList fileList) {
		this.fileList = fileList;
	}

	public void startThread(Rectangle r) {
		this.callCounts++;
		this.rect = r;
		run();
	}

	public void run() {
		this.callCounts--;
		if (this.callCounts > 0) {
			return;
		}

		Enumeration en = this.fileList.visibleItemsList.elements();
		int n = 0;
		while (en.hasMoreElements()) {
			n++;
			Item tempItem = (Item) en.nextElement();
			if (this.rect.intersects(tempItem.getBounds())) {
				if (!this.fileList.selectedFilesVector.contains(tempItem)) {
					if (!tempItem.getSelectionMode()) {
						tempItem.updateSelectionMode(true);
					}
					this.fileList.selectedFilesVector.add(tempItem);
				}
			} else {
				if (this.fileList.selectedFilesVector.contains(tempItem)) {
					if (tempItem.getSelectionMode()) {
						tempItem.updateSelectionMode(false);
					}
					this.fileList.selectedFilesVector.remove(tempItem);
				}
			}
		}
		this.fileList.synchFilechoserSelection();
	}
}