129 lines
4.0 KiB
Java
129 lines
4.0 KiB
Java
/*
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* Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @key headful
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* @bug 8015556
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* @summary Surrogate pairs do not render properly on MacOS X.
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*/
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import java.util.Locale;
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import java.awt.*;
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import java.awt.font.*;
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import javax.swing.*;
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public class SuppCharTest {
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static String str = "ABC\uD840\uDC01\uD840\uDC00AB";
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static String EXTB_FONT = "MingLiU-ExtB";
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public static void main(String args[]) throws Exception {
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final Font font = new Font(EXTB_FONT, Font.PLAIN, 36);
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if (!EXTB_FONT.equalsIgnoreCase(font.getFamily(Locale.ENGLISH))) {
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return;
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}
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SwingUtilities.invokeLater(new Runnable(){
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@Override
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public void run(){
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JFrame f = new JFrame("Test Supplementary Char Support");
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Component c = new SuppCharComp(font, str);
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f.add("Center", c);
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JButton b = new JButton(str);
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b.setFont(font);
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f.add("South", b);
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f.pack();
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f.setVisible(true);
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}
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});
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/* If a supplementary character was found, 'invisible glyphs'
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* with value 65535 will be inserted in the place of the 2nd (low)
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* char index. So we are looking here to make sure such substitutions
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* took place.
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*/
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FontRenderContext frc = new FontRenderContext(null, false, false);
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GlyphVector gv = font.createGlyphVector(frc, str);
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int numGlyphs = gv.getNumGlyphs();
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int[] codes = gv.getGlyphCodes(0, numGlyphs, null);
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boolean foundInvisibleGlyph = false;
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for (int i=0; i<numGlyphs;i++) {
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if (codes[i] == 65535) {
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foundInvisibleGlyph = true;
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break;
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}
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}
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if (!foundInvisibleGlyph) {
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throw new RuntimeException("No invisible glyphs");
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}
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if (font.canDisplayUpTo(str) != -1) {
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throw new RuntimeException("Font can't display all chars");
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}
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}
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}
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class SuppCharComp extends Component {
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static final int w=400, h=250;
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public Dimension preferredSize() {
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return new Dimension(w,h);
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}
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String str = null;
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Font font = null;
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public SuppCharComp(Font font, String str) {
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this.font = font;
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this.str = str;
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}
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public void paint(Graphics g) {
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Graphics2D g2d = (Graphics2D)g.create();
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g2d.setColor(Color.white);
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g2d.fillRect(0,0,w,h);
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g2d.setColor(Color.black);
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int y = 0;
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g2d.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
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RenderingHints.VALUE_FRACTIONALMETRICS_ON);
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g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
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RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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g2d.setFont(font);
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g2d.drawString(str, 10, 50);
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FontRenderContext frc = g2d.getFontRenderContext();
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GlyphVector gv = font.createGlyphVector(frc, str);
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g2d.drawGlyphVector(gv, 10, 100);
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TextLayout tl = new TextLayout(str, font, frc);
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tl.draw(g2d, 10, 150);
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char[] ca = str.toCharArray();
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g2d.drawChars(ca, 0, ca.length, 10, 200);
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}
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}
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