| /* |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
| * |
| * Copyright (c) 1997-2017 Oracle and/or its affiliates. All rights reserved. |
| * |
| * The contents of this file are subject to the terms of either the GNU |
| * General Public License Version 2 only ("GPL") or the Common Development |
| * and Distribution License("CDDL") (collectively, the "License"). You |
| * may not use this file except in compliance with the License. You can |
| * obtain a copy of the License at |
| * https://oss.oracle.com/licenses/CDDL+GPL-1.1 |
| * or LICENSE.txt. See the License for the specific |
| * language governing permissions and limitations under the License. |
| * |
| * When distributing the software, include this License Header Notice in each |
| * file and include the License file at LICENSE.txt. |
| * |
| * GPL Classpath Exception: |
| * Oracle designates this particular file as subject to the "Classpath" |
| * exception as provided by Oracle in the GPL Version 2 section of the License |
| * file that accompanied this code. |
| * |
| * Modifications: |
| * If applicable, add the following below the License Header, with the fields |
| * enclosed by brackets [] replaced by your own identifying information: |
| * "Portions Copyright [year] [name of copyright owner]" |
| * |
| * Contributor(s): |
| * If you wish your version of this file to be governed by only the CDDL or |
| * only the GPL Version 2, indicate your decision by adding "[Contributor] |
| * elects to include this software in this distribution under the [CDDL or GPL |
| * Version 2] license." If you don't indicate a single choice of license, a |
| * recipient has the option to distribute your version of this file under |
| * either the CDDL, the GPL Version 2 or to extend the choice of license to |
| * its licensees as provided above. However, if you add GPL Version 2 code |
| * and therefore, elected the GPL Version 2 license, then the option applies |
| * only if the new code is made subject to such option by the copyright |
| * holder. |
| */ |
| |
| 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(); |
| } |
| |
| } |
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