/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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 or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.wicket.resource;
import java.awt.AlphaComposite;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;
import org.apache.wicket.markup.html.image.resource.RenderedDynamicImageResource;
import org.smallmind.swing.SmallMindGrayFilter;
public class GrayFilterImageResource extends RenderedDynamicImageResource {
Image grayImage;
public GrayFilterImageResource (URL imageUrl, ImageType imageType)
throws IOException {
this(ImageIO.read(imageUrl), imageType);
}
private GrayFilterImageResource (BufferedImage image, ImageType imageType) {
super(image.getWidth(), image.getHeight(), imageType.getFormat());
setType(BufferedImage.TYPE_INT_ARGB);
grayImage = SmallMindGrayFilter.createDisabledImage(image);
}
@Override
protected boolean render (Graphics2D graphics, Attributes attributes) {
graphics.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0F));
graphics.drawImage(grayImage, 0, 0, getWidth(), getHeight(), null);
return true;
}
}