/*
* 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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
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*/
package sun.awt;
import java.awt.GraphicsEnvironment;
import java.awt.Toolkit;
import java.security.AccessController;
import java.security.PrivilegedAction;
public class PlatformGraphicsInfo {
public static GraphicsEnvironment createGE() {
return new X11GraphicsEnvironment();
}
public static Toolkit createToolkit() {
return new sun.awt.X11.XToolkit();
}
/**
* Called from java.awt.GraphicsEnvironment when
* to check if on this platform, the JDK should default to
* headless mode, in the case the application did specify
* a value for the java.awt.headless system property.
*/
public static boolean getDefaultHeadlessProperty() {
return
AccessController.doPrivileged((PrivilegedAction<Boolean>) () -> {
final String display = System.getenv("DISPLAY");
return display == null || display.trim().isEmpty();
});
}
/**
* Called from java.awt.GraphicsEnvironment when
* getDefaultHeadlessProperty() has returned true, and
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