src/java.desktop/share/classes/javax/swing/Icon.java

/*
 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package javax.swing;

import java.awt.Graphics;
import java.awt.Component;


/**
 * A small fixed size picture, typically used to decorate components.
 *
 * @see ImageIcon
 * @since 1.2
 */

public interface Icon
{
    /**
     * Draw the icon at the specified location.  Icon implementations
     * may use the Component argument to get properties useful for
     * painting, e.g. the foreground or background color.
     *
     * @param c  a {@code Component} to get properties useful for painting
     * @param g  the graphics context
     * @param x  the X coordinate of the icon's top-left corner
     * @param y  the Y coordinate of the icon's top-left corner
     */
    void paintIcon(Component c, Graphics g, int x, int y);

    /**
     * Returns the icon's width.
     *
     * @return an int specifying the fixed width of the icon.
     */
    int getIconWidth();

    /**
     * Returns the icon's height.
     *
     * @return an int specifying the fixed height of the icon.
     */
    int getIconHeight();
}