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* 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 .
*
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*/
/*
* @ 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" );
}
}
}
}
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