openjdk源码
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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.
*
* 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 8216965
* @summary verify no crash when rendering size 1 fonts
*/
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.image.BufferedImage;
public class FontSize1Test {
static final String text = "abcdefghijklmnopqrstuvwxyz";
public static void main(String[] args) {
BufferedImage bi =
new BufferedImage(100, 20, BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = bi.createGraphics();
Font af[] =
GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
for (Font f : af) {
System.out.println("Looking at font " + f);
g2d.setFont(f);
g2d.getFontMetrics().getWidths();
g2d.drawString(text, 50, 10);
}
g2d.dispose();
}
}