1 /* 2 * Copyright (c) 2019, 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 * @bug 8233097 27 * @summary Test we get non-zero metrics with large sizes. 28 * @run main MassiveMetricsTest 29 */ 30 31 import java.awt.Font; 32 import java.awt.FontMetrics; 33 import java.awt.Graphics2D; 34 import java.awt.GraphicsEnvironment; 35 import java.awt.image.BufferedImage; 36 37 public class MassiveMetricsTest { 38 39 public static void main(String [] args) { 40 41 GraphicsEnvironment ge = 42 GraphicsEnvironment.getLocalGraphicsEnvironment(); 43 Font[] fonts = ge.getAllFonts(); 44 BufferedImage bi = new BufferedImage(1,1,1); 45 Graphics2D g2d = bi.createGraphics(); 46 int[] sizes = { 80, 100, 120, 600, 1600, 2400, 3600, 7200, 12000 }; 47 String s = "m"; 48 49 for (Font f : fonts) { 50 Font sz12Font = f.deriveFont(Font.PLAIN, 12); 51 FontMetrics sz12 = g2d.getFontMetrics(sz12Font); 52 if (sz12.stringWidth(s) == 0) { 53 continue; // code point not supported or similar. 54 } 55 boolean fail = false; 56 for (int sz : sizes) { 57 Font font = f.deriveFont(Font.PLAIN, sz); 58 FontMetrics fm = g2d.getFontMetrics(font); 59 if (fm.stringWidth(s) == 0) { 60 fail = true; 61 System.err.println("zero for " + font); 62 } 63 } 64 if (fail) { 65 throw new RuntimeException("Zero stringwidth"); 66 } 67 } 68 } 69 }