80 lines
2.9 KiB
Java
80 lines
2.9 KiB
Java
/*
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test RotatedFontMetricsTest
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* @bug 8139178
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* @summary This test verifies that rotation does not affect font metrics.
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* @run main RotatedFontMetricsTest
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*/
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import java.awt.Font;
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import java.awt.FontMetrics;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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public class RotatedFontMetricsTest {
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static final int FONT_SIZE = Integer.getInteger("font.size", 20);
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public static void main(String ... args) {
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Font font = new Font(Font.DIALOG, Font.PLAIN, FONT_SIZE);
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Graphics2D g2d = createGraphics();
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FontMetrics ref = null;
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RuntimeException failure = null;
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for (int a = 0; a < 360; a += 15) {
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Graphics2D g = (Graphics2D)g2d.create();
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g.rotate(Math.toRadians(a));
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FontMetrics m = g.getFontMetrics(font);
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g.dispose();
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boolean status = true;
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if (ref == null) {
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ref = m;
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} else {
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status = ref.getAscent() == m.getAscent() &&
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ref.getDescent() == m.getDescent() &&
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ref.getLeading() == m.getLeading() &&
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ref.getMaxAdvance() == m.getMaxAdvance();
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}
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System.out.printf("Metrics a%d, d%d, l%d, m%d (%d) %s\n",
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m.getAscent(), m.getDescent(), m.getLeading(), m.getMaxAdvance(),
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(int)a, status ? "OK" : "FAIL");
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if (!status && failure == null) {
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failure = new RuntimeException("Font metrics differ for angle " + a);
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}
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}
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if (failure != null) {
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throw failure;
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}
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System.out.println("done");
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}
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private static Graphics2D createGraphics() {
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BufferedImage dst = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
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return dst.createGraphics();
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}
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}
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