jdk-24/test/jdk/java/awt/FontClass/MassiveMetricsTest.java
2019-11-04 10:01:55 -08:00

70 lines
2.4 KiB
Java

/*
* Copyright (c) 2019, 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 8233097
* @summary Test we get non-zero metrics with large sizes.
* @run main MassiveMetricsTest
*/
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.image.BufferedImage;
public class MassiveMetricsTest {
public static void main(String [] args) {
GraphicsEnvironment ge =
GraphicsEnvironment.getLocalGraphicsEnvironment();
Font[] fonts = ge.getAllFonts();
BufferedImage bi = new BufferedImage(1,1,1);
Graphics2D g2d = bi.createGraphics();
int[] sizes = { 80, 100, 120, 600, 1600, 2400, 3600, 7200, 12000 };
String s = "m";
for (Font f : fonts) {
Font sz12Font = f.deriveFont(Font.PLAIN, 12);
FontMetrics sz12 = g2d.getFontMetrics(sz12Font);
if (sz12.stringWidth(s) == 0) {
continue; // code point not supported or similar.
}
boolean fail = false;
for (int sz : sizes) {
Font font = f.deriveFont(Font.PLAIN, sz);
FontMetrics fm = g2d.getFontMetrics(font);
if (fm.stringWidth(s) == 0) {
fail = true;
System.err.println("zero for " + font);
}
}
if (fail) {
throw new RuntimeException("Zero stringwidth");
}
}
}
}