77 lines
2.9 KiB
Java
77 lines
2.9 KiB
Java
/*
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* Copyright (c) 2007, 2014, 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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import java.awt.*;
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import java.awt.image.BufferedImage;
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/*
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* @test
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* @summary Check that GraphicsEnvironment methods do not throw unexpected
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* exceptions in headless mode
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* @run main/othervm -Djava.awt.headless=true HeadlessGraphicsEnvironment
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*/
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public class HeadlessGraphicsEnvironment {
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public static void main(String args[]) {
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GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
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if (!GraphicsEnvironment.isHeadless())
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throw new RuntimeException("GraphicsEnvironment.isHeadless says it's not headless mode when it is");
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boolean exceptions = false;
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try {
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GraphicsDevice[] gdl = ge.getScreenDevices();
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} catch (HeadlessException e) {
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exceptions = true;
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}
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if (!exceptions)
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throw new RuntimeException("HeadlessException did not occur when excepted");
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exceptions = false;
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try {
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GraphicsDevice gdl = ge.getDefaultScreenDevice();
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} catch (HeadlessException e) {
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exceptions = true;
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}
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if (!exceptions)
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throw new RuntimeException("HeadlessException did not occur when excepted");
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Graphics2D gd = ge.createGraphics(new BufferedImage(100, 100, BufferedImage.TYPE_4BYTE_ABGR));
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for (Font font : ge.getAllFonts()) {
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for (float j = 8; j < 17; j++) {
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Font f1 = font.deriveFont(Font.PLAIN, j);
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Font f2 = font.deriveFont(Font.BOLD, j);
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Font f3 = font.deriveFont(Font.ITALIC, j);
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Font f4 = font.deriveFont(Font.BOLD | Font.ITALIC, j);
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f1.hasUniformLineMetrics();
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f2.hasUniformLineMetrics();
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f3.hasUniformLineMetrics();
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f4.hasUniformLineMetrics();
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}
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}
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String[] fNames = ge.getAvailableFontFamilyNames();
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}
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}
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