caps.java

Java2Demo版,不错的东东,需要先安装j2sdk

/*
 * Copyright (c) 2003 Sun Microsystems, Inc. All  Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * -Redistributions of source code must retain the above copyright
 *  notice, this list of conditions and the following disclaimer.
 * 
 * -Redistribution in binary form must reproduct the above copyright
 *  notice, this list of conditions and the following disclaimer in
 *  the documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
 * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT
 * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT
 * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
 * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
 * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
 * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN
 * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that Software is not designed, licensed or intended for
 * use in the design, construction, operation or maintenance of any nuclear
 * facility.
 */

/*
 * @(#)Caps.java	1.21 03/01/23
 */


package java2d.demos.Lines;


import java.awt.*;
import java.awt.geom.Line2D;
import java.awt.font.TextLayout;
import java.awt.font.FontRenderContext;
import java2d.Surface;


/**
 * Shows the three different styles of stroke ending.
 */
public class Caps extends Surface {

    private static int cap[] = { BasicStroke.CAP_BUTT,
        BasicStroke.CAP_ROUND, BasicStroke.CAP_SQUARE };
    private static String desc[] = { "Butt Cap", "Round Cap", "Square Cap" };


    public Caps() {
        setBackground(Color.white);
    }


    public void render(int w, int h, Graphics2D g2) {
        FontRenderContext frc = g2.getFontRenderContext();
        Font font = g2.getFont();
        g2.setColor(Color.black);
        for (int i=0; i < 3; i++) {
            g2.setStroke(new BasicStroke(15, cap[i], BasicStroke.JOIN_MITER));
            g2.draw(new Line2D.Float(w/4,(i+1)*h/4,w-w/4,(i+1)*h/4));
            TextLayout tl = new TextLayout(desc[i], font, frc);
            tl.draw(g2,(float)(w/2-tl.getBounds().getWidth()/2),(i+1)*h/4-10);
        }
    }


    public static void main(String s[]) {
        createDemoFrame(new Caps());
    }
}