/*******************************************************************************
* Copyright (c) 2000, 2012 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.examples.paint;
import org.eclipse.swt.graphics.*;
public class FigureDrawContext {
/*
* <p>
* The GC must be set up as follows
* (it will be returned to this state upon completion of drawing operations)
* <ul>
* <li>setXORMode(false)
* </ul>
* </p>
*/
public GC gc = null;
public int xOffset = 0, yOffset = 0; // substract to get GC coords
public int xScale = 1, yScale = 1;
public Rectangle toClientRectangle(int x1, int y1, int x2, int y2) {
return new Rectangle(
Math.min(x1, x2) * xScale - xOffset,
Math.min(y1, y2) * yScale - yOffset,
(Math.abs(x2 - x1) + 1) * xScale,
(Math.abs(y2 - y1) + 1) * yScale);
}
public Point toClientPoint(int x, int y) {
return new Point(x * xScale - xOffset, y * yScale - yOffset);
}
}