1 /*
   2  *
   3  * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  *   - Redistributions of source code must retain the above copyright
  10  *     notice, this list of conditions and the following disclaimer.
  11  *
  12  *   - Redistributions in binary form must reproduce the above copyright
  13  *     notice, this list of conditions and the following disclaimer in the
  14  *     documentation and/or other materials provided with the distribution.
  15  *
  16  *   - Neither the name of Oracle nor the names of its
  17  *     contributors may be used to endorse or promote products derived
  18  *     from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  21  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32 package java2d.demos.Lines;
  33 
  34 
  35 import static java.awt.BasicStroke.CAP_BUTT;
  36 import static java.awt.BasicStroke.CAP_ROUND;
  37 import static java.awt.BasicStroke.CAP_SQUARE;
  38 import static java.awt.BasicStroke.JOIN_MITER;
  39 import static java.awt.Color.BLACK;
  40 import static java.awt.Color.WHITE;
  41 import java.awt.BasicStroke;
  42 import java.awt.Font;
  43 import java.awt.Graphics2D;
  44 import java.awt.font.FontRenderContext;
  45 import java.awt.font.TextLayout;
  46 import java.awt.geom.Line2D;
  47 import java2d.Surface;
  48 
  49 
  50 /**
  51  * Shows the three different styles of stroke ending.
  52  */
  53 @SuppressWarnings("serial")
  54 public class Caps extends Surface {
  55 
  56     private static int[] cap = { CAP_BUTT, CAP_ROUND, CAP_SQUARE };
  57     private static String[] desc = { "Butt Cap", "Round Cap", "Square Cap" };
  58 
  59     public Caps() {
  60         setBackground(WHITE);
  61     }
  62 
  63     @Override
  64     public void render(int w, int h, Graphics2D g2) {
  65         FontRenderContext frc = g2.getFontRenderContext();
  66         Font font = g2.getFont();
  67         g2.setColor(BLACK);
  68         for (int i = 0; i < cap.length; i++) {
  69             g2.setStroke(new BasicStroke(15, cap[i], JOIN_MITER));
  70             g2.draw(new Line2D.Float(w / 4, (i + 1) * h / 4, w - w / 4, (i + 1)
  71                     * h / 4));
  72             TextLayout tl = new TextLayout(desc[i], font, frc);
  73             tl.draw(g2, (float) (w / 2 - tl.getBounds().getWidth() / 2), (i + 1)
  74                     * h / 4 - 10);
  75         }
  76     }
  77 
  78     public static void main(String[] s) {
  79         createDemoFrame(new Caps());
  80     }
  81 }