/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the "License"). You may not use this file except
* in compliance with the License.
*
* You can obtain a copy of the license at
* glassfish/bootstrap/legal/CDDLv1.0.txt or
* https://glassfish.dev.java.net/public/CDDLv1.0.html.
* 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
* glassfish/bootstrap/legal/CDDLv1.0.txt. 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]
*/
/*
* @(#)ImageViewer.java 1.8 05/11/16
*
* Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
*/
package com.sun.activation.viewers;
import java.awt.*;
import java.io.*;
import java.beans.*;
import javax.activation.*;
public class
ImageViewer extends
Panel implements
CommandObject {
// UI Vars...
private
ImageViewerCanvas canvas = null;
// File Vars
// private InputStream data_ins = null;
private
Image image = null;
private
DataHandler _dh = null;
private boolean
DEBUG = false;
/**
* Constructor
*/
public
ImageViewer(){
// create the ImageViewerCanvas
canvas = new
ImageViewerCanvas();
add(
canvas);
}
/**
* Set the DataHandler for this CommandObject
* @param DataHandler the DataHandler
*/
public void
setCommandContext(
String verb,
DataHandler dh) throws
IOException{
_dh =
dh;
this.
setInputStream(
_dh.
getInputStream() );
}
//--------------------------------------------------------------------
/**
* Set the data stream, component to assume it is ready to
* be read.
*/
private void
setInputStream(
InputStream ins) throws
IOException {
MediaTracker mt = new
MediaTracker(this);
int
bytes_read = 0;
byte
data[] = new byte[1024];
ByteArrayOutputStream baos = new
ByteArrayOutputStream();
while((
bytes_read =
ins.
read(
data)) >0)
baos.
write(
data, 0,
bytes_read);
ins.
close();
// convert the buffer into an image
image =
getToolkit().
createImage(
baos.
toByteArray());
mt.
addImage(
image, 0);
try {
mt.
waitForID(0);
mt.
waitForAll();
if(
mt.
statusID(0, true ) !=
MediaTracker.
COMPLETE){
System.
out.
println("Error occured in image loading = " +
mt.
getErrorsID(0));
}
}
catch(
InterruptedException e) {
throw new
IOException("Error reading image data");
}
canvas.
setImage(
image);
if(
DEBUG)
System.
out.
println("calling invalidate");
}
//--------------------------------------------------------------------
public void
addNotify(){
super.addNotify(); // call the real one first...
this.
invalidate();
this.
validate();
this.
doLayout();
}
//--------------------------------------------------------------------
public
Dimension getPreferredSize(){
return
canvas.
getPreferredSize();
}
}