/*
 * java-gnome, a UI library for writing GTK and GNOME programs from Java!
 *
 * Copyright © 2008-2010 Operational Dynamics Consulting, Pty Ltd
 *
 * The code in this file, and the program it is a part of, is made available
 * to you by its authors as open source software: you can redistribute it
 * and/or modify it under the terms of the GNU General Public License version
 * 2 ("GPL") as published by the Free Software Foundation.
 *
 * 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 GPL for more details.
 *
 * You should have received a copy of the GPL along with this program. If not,
 * see http://www.gnu.org/licenses/. The authors of this program may be
 * contacted through http://java-gnome.sourceforge.net/.
 *
 * Linking this library statically or dynamically with other modules is making
 * a combined work based on this library. Thus, the terms and conditions of
 * the GPL cover the whole combination. As a special exception (the
 * "Claspath Exception"), the copyright holders of this library give you
 * permission to link this library with independent modules to produce an
 * executable, regardless of the license terms of these independent modules,
 * and to copy and distribute the resulting executable under terms of your
 * choice, provided that you also meet, for each linked independent module,
 * the terms and conditions of the license of that module. An independent
 * module is a module which is not derived from or based on this library. If
 * you modify this library, you may extend the Classpath Exception to your
 * version of the library, but you are not obligated to do so. If you do not
 * wish to do so, delete this exception statement from your version.
 */
package org.freedesktop.cairo;

/**
 * A linear gradient.
 * 
 * <p>
 * Before using the LinearPattern you need to call
 * {@link Pattern#addColorStopRGBA(double, double, double, double, double)
 * addColorStopRGBA()} a few times to set up the gradient. For example:
 * 
 * <pre>
 * pat = new LinearPattern(40, 25, 120, 100);
 * pat.addColorStopRGB(0.0, 0.0, 0.3, 0.8);
 * pat.addColorStopRGB(1.0, 0.0, 0.8, 0.3);
 * </pre>
 * 
 * and then you can get on with using the Pattern in drawing operations.
 * 
 * <pre>
 * cr.setSource(pat);
 * </pre>
 * 
 * @author Andrew Cowie
 * @since 4.0.7
 */
public class LinearPattern extends Pattern
{
    protected LinearPattern(long pointer) {
        super(pointer);
    }

    /**
     * Create a Pattern with a linear gradient between co-ordinates
     * <code>x0</code>,<code>y0</code> and <code>x1</code>,<code>y1</code>.
     * 
     * @since 4.0.7
     */
    public LinearPattern(double x0, double y0, double x1, double y1) {
        super(CairoPattern.createPatternLinear(x0, y0, x1, y1));
        checkStatus();
    }
}