/*
 * GNU LESSER GENERAL PUBLIC LICENSE Copyright (C) 2006 The Lobo Project
 * 
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 * 
 * This library 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 Lesser General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 * 
 * Contact info: lobochief@users.sourceforge.net
 */
package com.nvarghese.beowulf.common.cobra.util.gui;

import java.awt.Frame;
import java.awt.Graphics;

public class GUITasks {

	public static Frame getTopFrame() {

		Frame[] frames = Frame.getFrames();
		for (int i = 0; i < frames.length; i++) {
			if (frames[i].getFocusOwner() != null) {
				return frames[i];
			}
		}
		if (frames.length > 0) {
			return frames[0];
		}
		return null;
	}

	public static void drawDashed(Graphics g, int x1, int y1, int x2, int y2, int dashSize, int gapSize) {

		if (x2 < x1) {
			int temp = x1;
			x1 = x2;
			x2 = temp;
		}
		if (y2 < y1) {
			int temp = y1;
			y1 = y2;
			y2 = temp;
		}
		int totalDash = dashSize + gapSize;
		if (y1 == y2) {
			int virtualStartX = (x1 / totalDash) * totalDash;
			for (int x = virtualStartX; x < x2; x += totalDash) {
				int topX = x + dashSize;
				if (topX > x2) {
					topX = x2;
				}
				int firstX = x;
				if (firstX < x1) {
					firstX = x1;
				}
				if (firstX < topX) {
					g.drawLine(firstX, y1, topX, y1);
				}
			}
		} else if (x1 == x2) {
			int virtualStartY = (y1 / totalDash) * totalDash;
			for (int y = virtualStartY; y < y2; y += totalDash) {
				int topY = y + dashSize;
				if (topY > y2) {
					topY = y2;
				}
				int firstY = y;
				if (firstY < y1) {
					firstY = y1;
				}
				if (firstY < topY) {
					g.drawLine(x1, firstY, x1, topY);
				}
			}
		} else {
			// Not supported
			g.drawLine(x1, y1, x2, y2);
		}
	}
}