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