/* * Copyright (c) 1995 - 2008 Sun Microsystems, Inc.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * *   - Redistributions of source code must retain the above copyright *     notice, this list of conditions and the following disclaimer. * *   - Redistributions in binary form must reproduce the above copyright *     notice, this list of conditions and the following disclaimer in the *     documentation and/or other materials provided with the distribution. * *   - Neither the name of Sun Microsystems nor the names of its *     contributors may be used to endorse or promote products derived *     from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package misc;/* * Picture.java is used by the 1.4 * TrackFocusDemo.java and DragPictureDemo.java examples. */import javax.swing.InputMap;import javax.swing.KeyStroke;import javax.swing.Action;import javax.swing.JComponent;import javax.accessibility.Accessible;import java.beans.*; import java.awt.*;import java.awt.event.*;class Picture extends JComponent                       implements MouseListener,                                  FocusListener,                                  Accessible {    Image image;    public Picture(Image image) {        this.image = image;        setFocusable(true);        addMouseListener(this);        addFocusListener(this);    }    public void mouseClicked(MouseEvent e) {        //Since the user clicked on us, let's get focus!        requestFocusInWindow();    }    public void mouseEntered(MouseEvent e) { }    public void mouseExited(MouseEvent e) { }    public void mousePressed(MouseEvent e) { }    public void mouseReleased(MouseEvent e) { }    public void focusGained(FocusEvent e) {        //Draw the component with a red border        //indicating that it has focus.        this.repaint();    }    public void focusLost(FocusEvent e) {        //Draw the component with a black border        //indicating that it doesn't have focus.        this.repaint();    }    protected void paintComponent(Graphics graphics) {        Graphics g = graphics.create();        //Draw in our entire space, even if isOpaque is false.        g.setColor(Color.WHITE);        g.fillRect(0, 0, image == null ? 125 : image.getWidth(this),                         image == null ? 125 : image.getHeight(this));        if (image != null) {            //Draw image at its natural size of 125x125.            g.drawImage(image, 0, 0, this);        }        //Add a border, red if picture currently has focus        if (isFocusOwner()) {            g.setColor(Color.RED);        } else {            g.setColor(Color.BLACK);        }        g.drawRect(0, 0, image == null ? 125 : image.getWidth(this),                         image == null ? 125 : image.getHeight(this));        g.dispose();    }}