1 /*

     2  * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /**

    25  * @test

    26  * @key headful

    27  * @bug 8064833

    28  * @summary Test correct font is obtained via famil+style

    29  * @run main HelvLtOblTest

    30  */

    31 

    32 import javax.swing.JComponent;

    33 import javax.swing.JFrame;

    34 import javax.swing.SwingUtilities;

    35 import java.awt.Color;

    36 import java.awt.Dimension;

    37 import java.awt.Font;

    38 import java.awt.Graphics;

    39 import java.awt.Graphics2D;

    40 import java.awt.GraphicsEnvironment;

    41 import java.awt.RenderingHints;

    42 import java.awt.font.FontRenderContext;

    43 import java.awt.font.GlyphVector;

    44 import java.awt.image.BufferedImage;

    45 

    46 public class HelvLtOblTest extends JComponent {

    47 

    48     static Font helvFont = null;

    49 

    50     static int[] codes = { 0x23, 0x4a, 0x48, 0x3, 0x4a, 0x55, 0x42, 0x4d,

    51                     0x4a, 0x44, 0x3,

    52                     0x53, 0x46, 0x45, 0x3, 0x55, 0x46, 0x59, 0x55, };

    53 

    54     static String str = "Big italic red text";

    55 

    56     public static void main(String[] args) throws Exception {

    57         String os = System.getProperty("os.name");

    58         if (!os.startsWith("Mac")) {

    59              return;

    60         }

    61         GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();

    62         Font[] fonts = ge.getAllFonts();

    63         for (int i=0; i<fonts.length; i++) {

    64             if (fonts[i].getPSName().equals("Helvetica-LightOblique")) {

    65                  helvFont = fonts[i];

    66                  break;

    67             }

    68         }

    69         if (helvFont == null) {

    70             return;

    71         }

    72         final HelvLtOblTest test = new HelvLtOblTest();

    73         SwingUtilities.invokeLater(() -> {

    74             JFrame f = new JFrame();

    75             f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    76             f.add("Center", test);

    77             f.pack();

    78             f.setVisible(true);

    79         });

    80         test.compareImages();

    81     }

    82 

    83     public Dimension getPreferredSize() {

    84       return new Dimension(400,400);

    85     }

    86 

    87     public void paintComponent(Graphics g) {

    88          super.paintComponent(g);

    89          Graphics2D g2 = (Graphics2D)g;

    90          FontRenderContext frc = new FontRenderContext(null, true, true);

    91          Font f = helvFont.deriveFont(Font.PLAIN, 40);

    92          System.out.println("font = " +f.getFontName());

    93          GlyphVector gv = f.createGlyphVector(frc, codes);

    94          g.setFont(f);

    95          g.setColor(Color.white);

    96          g.fillRect(0,0,400,400);

    97          g.setColor(Color.black);

    98          g2.drawGlyphVector(gv, 5,200);

    99          g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,

   100                              RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

   101          g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,

   102                              RenderingHints.VALUE_FRACTIONALMETRICS_ON);

   103          g2.drawString(str, 5, 250);

   104     }

   105 

   106     void compareImages() {

   107          BufferedImage bi0 = drawText(false);

   108          BufferedImage bi1 = drawText(true);

   109          compare(bi0, bi1);

   110     }

   111 

   112     BufferedImage drawText(boolean doGV) {

   113         int w = 400;

   114         int h = 50;

   115         BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);

   116         Graphics2D g = bi.createGraphics();

   117         g.setColor(Color.white);

   118         g.fillRect(0,0,w,h);

   119         g.setColor(Color.black);

   120         Font f = helvFont.deriveFont(Font.PLAIN, 40);

   121         g.setFont(f);

   122         int x = 5;

   123         int y = h - 10;

   124         if (doGV) {

   125             FontRenderContext frc = new FontRenderContext(null, true, true);

   126             GlyphVector gv = f.createGlyphVector(frc, codes);

   127             g.drawGlyphVector(gv, 5, y);

   128        } else {

   129            g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,

   130                               RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

   131            g.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,

   132                               RenderingHints.VALUE_FRACTIONALMETRICS_ON);

   133            g.drawString(str, x, y);

   134        }

   135        return bi;

   136     }

   137 

   138     // Need to allow for minimal rounding error, so allow each component

   139     // to differ by 1.

   140     void compare(BufferedImage bi0, BufferedImage bi1) {

   141         int wid = bi0.getWidth();

   142         int hgt = bi0.getHeight();

   143         for (int x=0; x<wid; x++) {

   144             for (int y=0; y<hgt; y++) {

   145                 int rgb0 = bi0.getRGB(x, y);

   146                 int rgb1 = bi1.getRGB(x, y);

   147                 if (rgb0 == rgb1) continue;

   148                 int r0 = (rgb0 & 0xff0000) >> 16;

   149                 int r1 = (rgb1 & 0xff0000) >> 16;

   150                 int rdiff = r0-r1; if (rdiff<0) rdiff = -rdiff;

   151                 int g0 = (rgb0 & 0x00ff00) >> 8;

   152                 int g1 = (rgb1 & 0x00ff00) >> 8;

   153                 int gdiff = g0-g1; if (gdiff<0) gdiff = -gdiff;

   154                 int b0 = (rgb0 & 0x0000ff);

   155                 int b1 = (rgb1 & 0x0000ff);

   156                 int bdiff = b0-b1; if (bdiff<0) bdiff = -bdiff;

   157                 if (rdiff > 1 || gdiff > 1 || bdiff > 1) {

   158                     throw new RuntimeException(

   159                       "Images differ at x=" + x + " y="+ y + " " +

   160                       Integer.toHexString(rgb0) + " vs " +

   161                       Integer.toHexString(rgb1));

   162                 }

   163             }

   164         }

   165     }

   166 

   167 }