/*
 * @(#)GraphicsCallback.java	1.7 03/12/19
 *
 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package java.awt;

import java.awt.peer.LightweightPeer;
import sun.awt.SunGraphicsCallback;


abstract class GraphicsCallback extends SunGraphicsCallback {

    static final class PaintCallback extends GraphicsCallback {
        private static PaintCallback instance = new PaintCallback();

        private PaintCallback() {}
        public void run(Component comp, Graphics cg) {
            comp.paint(cg);
        }
        static PaintCallback getInstance() {
            return instance;
        }
    }
    static final class PrintCallback extends GraphicsCallback {
        private static PrintCallback instance = new PrintCallback();

        private PrintCallback() {}
        public void run(Component comp, Graphics cg) {
            comp.print(cg);
        }
        static PrintCallback getInstance() {
            return instance;
        }
    }
    static final class PaintAllCallback extends GraphicsCallback {
        private static PaintAllCallback instance = new PaintAllCallback();

        private PaintAllCallback() {}
        public void run(Component comp, Graphics cg) {
            comp.paintAll(cg);
        }
        static PaintAllCallback getInstance() {
            return instance;
        }
    }
    static final class PrintAllCallback extends GraphicsCallback {
        private static PrintAllCallback instance = new PrintAllCallback();

        private PrintAllCallback() {}
        public void run(Component comp, Graphics cg) {
            comp.printAll(cg);
        }
        static PrintAllCallback getInstance() {
            return instance;
        }
    }
    static final class PeerPaintCallback extends GraphicsCallback {
        private static PeerPaintCallback instance = new PeerPaintCallback();

        private PeerPaintCallback() {}
        public void run(Component comp, Graphics cg) {
	    comp.validate();
	    if (comp.peer instanceof LightweightPeer) {
	        comp.lightweightPaint(cg);
	    } else {
	        comp.peer.paint(cg);
	    }
	}
        static PeerPaintCallback getInstance() {
	    return instance;
	}
    }
    static final class PeerPrintCallback extends GraphicsCallback {
        private static PeerPrintCallback instance = new PeerPrintCallback();

        private PeerPrintCallback() {}
        public void run(Component comp, Graphics cg) {
	    comp.validate();
	    if (comp.peer instanceof LightweightPeer) {
	        comp.lightweightPrint(cg);
	    } else {
	        comp.peer.print(cg);
	    }
	}
        static PeerPrintCallback getInstance() {
	    return instance;
	}
    }
    static final class PaintHeavyweightComponentsCallback
        extends GraphicsCallback
    {
        private static PaintHeavyweightComponentsCallback instance =
	    new PaintHeavyweightComponentsCallback();

        private PaintHeavyweightComponentsCallback() {}
        public void run(Component comp, Graphics cg) {
	    if (comp.peer instanceof LightweightPeer) {
	        comp.paintHeavyweightComponents(cg);
	    } else {
	        comp.paintAll(cg);
	    }
	}
        static PaintHeavyweightComponentsCallback getInstance() {
	    return instance;
	}
    }
    static final class PrintHeavyweightComponentsCallback
        extends GraphicsCallback
    {
        private static PrintHeavyweightComponentsCallback instance =
	    new PrintHeavyweightComponentsCallback();

        private PrintHeavyweightComponentsCallback() {}
        public void run(Component comp, Graphics cg) {
	    if (comp.peer instanceof LightweightPeer) {
	        comp.printHeavyweightComponents(cg);
	    } else {
	        comp.printAll(cg);
	    }
	}
        static PrintHeavyweightComponentsCallback getInstance() {
	    return instance;
	}
    }
}