coral.ScreenshotServable.java Source code

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Here is the source code for coral.ScreenshotServable.java

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/*
 *   Copyright 2009-2015 Markus Schaffner
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
package coral;

/*******************************************************************************
 * Copyright (c) 2009 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/

// Platform.resolve(plugin.getBundle().getEntry(".")).toString(); 

/*
 * Browser example snippet: Render HTML from memory in response to a link click.
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */

import java.io.ByteArrayOutputStream;
import java.util.Properties;
import java.util.concurrent.BlockingQueue;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.ImageLoader;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

import any.Linker;
import any.model.Message;
import any.model.Servable;

// import org.eclipse.swt.internal.cocoa.NSWindow;

// TODO incomplete, untested

public class ScreenshotServable implements Servable {

    protected final Log logger = LogFactory.getLog(this.getClass());

    //   private BlockingQueue<Message> queue;

    private Shell shell;

    @Override
    public void init(Properties properties, BlockingQueue<Message> loopQueue, Linker linker) {

        this.shell = (Shell) properties.get("shell");

        logger.debug("ready");

    }

    @Override
    public void process(Message cmd, final BlockingQueue<Message> outQueue) {

        final String dest = cmd.getFullContent();

        Display display = Display.getDefault();
        display.syncExec(new Runnable() {
            public void run() {
                final Image image = new Image(shell.getDisplay(), shell.getSize().x, shell.getSize().y);
                GC gc = new GC(image);
                shell.getChildren()[0].print(gc);
                gc.dispose();

                ImageLoader imageLoader = new ImageLoader();
                imageLoader.data = new ImageData[] { image.getImageData() };

                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                imageLoader.save(baos, SWT.IMAGE_PNG);

                outQueue.add(new Message("put://host/" + dest, baos.toByteArray()));

            }
        });

    }

    @Override
    public void disconnect(BlockingQueue<Message> outQueue) {
        // default, ignore 
    }

}