Package java.awt

Source Code of java.awt.MouseInfo

/*
*  Licensed to the Apache Software Foundation (ASF) under one or more
*  contributor license agreements.  See the NOTICE file distributed with
*  this work for additional information regarding copyright ownership.
*  The ASF licenses this file to You under the Apache License, Version 2.0
*  (the "License"); you may not use this file except in compliance with
*  the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS,
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*/
/**
* @author Dmitry A. Durnev, Pavel Dolgov
* @version $Revision$
*/
package java.awt;

import org.apache.harmony.awt.wtk.NativeMouseInfo;

public class MouseInfo {

    public static int getNumberOfButtons() throws HeadlessException {
        Toolkit.checkHeadless();
        NativeMouseInfo ptrInfo =
            Toolkit.getDefaultToolkit().getNativeMouseInfo();
        return ptrInfo.getNumberOfButtons();
    }

    public static PointerInfo getPointerInfo() throws HeadlessException {
        Toolkit.checkHeadless();
        SecurityManager secMan = System.getSecurityManager();
        if (secMan != null) {
            secMan.checkPermission(new AWTPermission("watchMousePointer")); //$NON-NLS-1$
        }
        Toolkit toolkit = Toolkit.getDefaultToolkit();
        Point location = toolkit.getNativeMouseInfo().getLocation();
        GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();

        GraphicsDevice gd = ge.getDefaultScreenDevice();

        // TODO:  For virtual screen devices, the coordinates
        // are given in the virtual coordinate system,
        // otherwise they are returned in the coordinate system
        // of the GraphicsDevice.[multi-screen support]

        return new PointerInfo(gd, location);
    }

    private MouseInfo() {
        //this class can't be instantiated
    }

}
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