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