1 /*

     2  * Copyright 1995-2001 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 package sun.awt.motif;

    26 

    27 import java.awt.*;

    28 import java.awt.peer.*;

    29 import java.awt.event.ActionEvent;

    30 

    31 class MButtonPeer extends MComponentPeer implements ButtonPeer {

    32     native void create(MComponentPeer peer);

    33     public native void setLabel(String label);

    34 

    35     MButtonPeer(Button target) {

    36         super(target);

    37     }

    38 

    39     public Dimension getMinimumSize() {

    40         FontMetrics fm = getFontMetrics(target.getFont());

    41         String label = ((Button)target).getLabel();

    42         if ( label == null ) {

    43             label = "";

    44         }

    45         return new Dimension(fm.stringWidth(label) + 14,

    46                              fm.getHeight() + 8);

    47     }

    48 

    49     public boolean isFocusable() {

    50         return true;

    51     }

    52 

    53     // NOTE: This method is called by privileged threads.

    54     //       DO NOT INVOKE CLIENT CODE ON THIS THREAD!

    55     public void action(final long when, final int modifiers) {

    56         MToolkit.executeOnEventHandlerThread(target, new Runnable() {

    57             public void run() {

    58                 postEvent(new ActionEvent(target, ActionEvent.ACTION_PERFORMED,

    59                                           ((Button)target).getActionCommand(),

    60                                           when, modifiers));

    61             }

    62         });

    63     }

    64 

    65     /*

    66      * Print the native component by rendering the Motif look ourselves.

    67      * ToDo(aim): needs to query native motif for more accurate size and

    68      * color information.

    69      */

    70     public void print(Graphics g) {

    71         Button b = (Button)target;

    72         Dimension d = b.size();

    73         Color bg = b.getBackground();

    74         Color fg = b.getForeground();

    75 

    76         g.setColor(bg);

    77         g.fillRect(2, 2, d.width - 3, d.height - 3);

    78         draw3DRect(g, bg, 1, 1, d.width - 2, d.height - 2, true);

    79 

    80         g.setColor(fg);

    81         g.setFont(b.getFont());

    82         FontMetrics fm = g.getFontMetrics();

    83         String lbl = b.getLabel();

    84         g.drawString(lbl, (d.width - fm.stringWidth(lbl)) / 2,

    85                           (d.height + fm.getMaxAscent() - fm.getMaxDescent()) / 2);

    86 

    87         target.print(g);

    88     }

    89 

    90     /**

    91      * DEPRECATED

    92      */

    93     public Dimension minimumSize() {

    94         return getMinimumSize();

    95     }

    96 

    97 }