Showing the changes to java/pkg/sun/font/FontManagerFactory.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2008, 2010, 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. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.font; | |
| 27 | + | |
| 28 | +import java.awt.AWTError; | |
| 29 | +import java.awt.Font; | |
| 30 | +import java.awt.GraphicsEnvironment; | |
| 31 | +import java.awt.Toolkit; | |
| 32 | +import java.security.AccessController; | |
| 33 | +import java.security.PrivilegedAction; | |
| 34 | + | |
| 35 | +import sun.security.action.GetPropertyAction; | |
| 36 | + | |
| 37 | + | |
| 38 | +/** | |
| 39 | + * Factory class used to retrieve a valid FontManager instance for the current | |
| 40 | + * platform. | |
| 41 | + * | |
| 42 | + * A default implementation is given for Linux, Solaris and Windows. | |
| 43 | + * You can alter the behaviour of the {@link #getInstance()} method by setting | |
| 44 | + * the {@code sun.font.fontmanager} property. For example: | |
| 45 | + * {@code sun.font.fontmanager=sun.awt.X11FontManager} | |
| 46 | + */ | |
| 47 | +public final class FontManagerFactory { | |
| 48 | + | |
| 49 | + /** Our singleton instance. */ | |
| 50 | + private static FontManager instance = null; | |
| 51 | + | |
| 52 | + private static final String DEFAULT_CLASS; | |
| 53 | + static { | |
| 54 | + if (FontUtilities.isWindows) | |
| 55 | + DEFAULT_CLASS = "sun.awt.Win32FontManager"; | |
| 56 | + else | |
| 57 | + DEFAULT_CLASS = "sun.awt.X11FontManager"; | |
| 58 | + } | |
| 59 | + | |
| 60 | + /** | |
| 61 | + * Get a valid FontManager implementation for the current platform. | |
| 62 | + * | |
| 63 | + * @return a valid FontManager instance for the current platform | |
| 64 | + */ | |
| 65 | + public static synchronized FontManager getInstance() { | |
| 66 | + | |
| 67 | + if (instance != null) { | |
| 68 | + return instance; | |
| 69 | + } | |
| 70 | + | |
| 71 | + AccessController.doPrivileged(new PrivilegedAction() { | |
| 72 | + | |
| 73 | + public Object run() { | |
| 74 | + try { | |
| 75 | + String fmClassName = | |
| 76 | + System.getProperty("sun.font.fontmanager", | |
| 77 | + DEFAULT_CLASS); | |
| 78 | + ClassLoader cl = ClassLoader.getSystemClassLoader(); | |
| 79 | + Class fmClass = Class.forName(fmClassName, true, cl); | |
| 80 | + instance = (FontManager) fmClass.newInstance(); | |
| 81 | + } catch (ClassNotFoundException ex) { | |
| 82 | + InternalError err = new InternalError(); | |
| 83 | + err.initCause(ex); | |
| 84 | + throw err; | |
| 85 | + | |
| 86 | + } catch (InstantiationException ex) { | |
| 87 | + InternalError err = new InternalError(); | |
| 88 | + err.initCause(ex); | |
| 89 | + throw err; | |
| 90 | + | |
| 91 | + } catch (IllegalAccessException ex) { | |
| 92 | + InternalError err = new InternalError(); | |
| 93 | + err.initCause(ex); | |
| 94 | + throw err; | |
| 95 | + } | |
| 96 | + return null; | |
| 97 | + } | |
| 98 | + }); | |
| 99 | + | |
| 100 | + return instance; | |
| 101 | + } | |
| 102 | +} | |