/*******************************************************************************
* Signavio Core Components
* Copyright (C) 2012 Signavio GmbH
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package com.signavio.warehouse.revision.handler;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletContext;
import org.apache.batik.transcoder.TranscodingHints;
import org.apache.batik.transcoder.image.PNGTranscoder;
import com.signavio.platform.annotations.HandlerConfiguration;
import com.signavio.platform.annotations.HandlerExportConfiguration;
import com.signavio.platform.annotations.HandlerMethodActivation;
import com.signavio.platform.security.business.FsSecureBusinessObject;
import com.signavio.warehouse.revision.business.RepresentationType;
@HandlerConfiguration(uri="/thumbnail", context=RevisionHandler.class, rel="exp")
@HandlerExportConfiguration(name="PNG Thumbnail Export", icon="/explorer/src/img/famfamfam/picture.png", mime="image/png")
public class ThumbnailHandler extends AbstractImageHandler {
private float HEIGHT = 55f;
private float WIDTH = 50f;
public ThumbnailHandler(ServletContext servletContext) {
super(servletContext);
}
@Override
@HandlerMethodActivation
public <T extends FsSecureBusinessObject> byte[] doExport(T sbo, Object params){
Map<TranscodingHints.Key, Object> hints = new HashMap<TranscodingHints.Key, Object>();
hints.put(PNGTranscoder.KEY_MAX_WIDTH, WIDTH);
hints.put(PNGTranscoder.KEY_MAX_HEIGHT, HEIGHT);
return getImage(RepresentationType.PNG_SMALL, new PNGTranscoder(), sbo, hints);
}
}