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64 lines
2.4 KiB
Java
64 lines
2.4 KiB
Java
/*
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* Copyright (c) 2011, 2012, 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. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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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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package apple.laf;
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public class JRSUIFocus {
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private static final int SUCCESS = 0;
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private static final int NULL_PTR = -1;
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private static final int NULL_CG_REF = -2;
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// from HITheme.h
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public static final int RING_ONLY = 0;
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public static final int RING_ABOVE = 1;
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public static final int RING_BELOW = 2;
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private static native int beginNativeFocus(final long cgContext, final int ringStyle);
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private static native int endNativeFocus(final long cgContext);
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final long cgContext;
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public JRSUIFocus(final long cgContext) {
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this.cgContext = cgContext;
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}
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public void beginFocus(final int ringStyle) {
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testForFailure(beginNativeFocus(cgContext, ringStyle));
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}
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public void endFocus() {
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testForFailure(endNativeFocus(cgContext));
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}
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static void testForFailure(final int status) {
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if (status == SUCCESS) return;
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switch(status) {
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case NULL_PTR: throw new RuntimeException("Null pointer exception in native JRSUI");
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case NULL_CG_REF: throw new RuntimeException("Null CG reference in native JRSUI");
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default: throw new RuntimeException("JRSUI draw focus problem: " + status);
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}
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}
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}
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