ImageButton.java revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* ident "%Z%%M% %I% %E% SMI"
*
* Copyright 2002 by Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
package com.sun.dhcpmgr.ui;
import javax.swing.JButton;
import javax.swing.ImageIcon;
import java.io.InputStream;
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
/**
* A button with an image loaded from a gif file. To use this class, extend it
* and in your constructor call setImage().
*/
public abstract class ImageButton extends JButton {
/**
* Sets the button's icon to the image loaded from the file; falls back the
* specified text if for some reason the icon can't be loaded. Base class
* is used to find the gif image in the same directory as the class that's
* using it, a convention we use.
* @param baseClass the name of the class we're doing this on behalf of
* @param file the name of the file the gif image is stored in
* @param mnText is the mnemonic/text to be used for the button
*/
public void setImage(Class baseClass, String file, Mnemonic mnText) {
try {
InputStream resource = baseClass.getResourceAsStream(file);
if (resource != null) {
BufferedInputStream in = new BufferedInputStream(resource);
ByteArrayOutputStream out = new ByteArrayOutputStream(1024);
byte [] buffer = new byte[1024];
int n;
while ((n = in.read(buffer)) > 0) {
out.write(buffer, 0, n);
}
in.close();
out.flush();
buffer = out.toByteArray();
setIcon(new ImageIcon(buffer));
}
} catch (IOException ioe) {
}
// Added for accessibility
setText(mnText.getString());
setToolTipText(mnText.getString());
setMnemonic(mnText.getMnemonic());
}
}