src/java.desktop/share/classes/java/awt/PointerInfo.java
author erikj
Tue, 12 Sep 2017 19:03:39 +0200
changeset 47216 71c04702a3d5
parent 25859 jdk/src/java.desktop/share/classes/java/awt/PointerInfo.java@3317bb8137f4
permissions -rw-r--r--
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/*
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 * Copyright (c) 2003, 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.  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 java.awt;
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/**
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 * A class that describes the pointer position.
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 * It provides the {@code GraphicsDevice} where the pointer is and
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 * the {@code Point} that represents the coordinates of the pointer.
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 * <p>
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 * Instances of this class should be obtained via
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 * {@link MouseInfo#getPointerInfo}.
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 * The {@code PointerInfo} instance is not updated dynamically as the mouse
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 * moves. To get the updated location, you must call
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 * {@link MouseInfo#getPointerInfo} again.
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 *
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 * @see MouseInfo#getPointerInfo
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 * @author Roman Poborchiy
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 * @since 1.5
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 */
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public class PointerInfo {
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    private final GraphicsDevice device;
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    private final Point location;
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    /**
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     * Package-private constructor to prevent instantiation.
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     */
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    PointerInfo(final GraphicsDevice device, final Point location) {
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        this.device = device;
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        this.location = location;
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    }
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    /**
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     * Returns the {@code GraphicsDevice} where the mouse pointer was at the
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     * moment this {@code PointerInfo} was created.
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     *
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     * @return {@code GraphicsDevice} corresponding to the pointer
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     * @since 1.5
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     */
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    public GraphicsDevice getDevice() {
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        return device;
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    }
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    /**
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     * Returns the {@code Point} that represents the coordinates of the pointer
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     * on the screen. See {@link MouseInfo#getPointerInfo} for more information
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     * about coordinate calculation for multiscreen systems.
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     *
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     * @return coordinates of mouse pointer
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     * @see MouseInfo
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     * @see MouseInfo#getPointerInfo
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     * @since 1.5
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     */
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    public Point getLocation() {
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        return location;
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    }
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}