/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.sanselan.sampleUsage;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Transparency;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.apache.sanselan.ImageReadException;
import org.apache.sanselan.Sanselan;
import org.apache.sanselan.SanselanConstants;
import org.apache.sanselan.common.IBufferedImageFactory;
public class ImageReadExample
{
public static BufferedImage imageReadExample(File file)
throws ImageReadException, IOException
{
Map params = new HashMap();
// set optional parameters if you like
params.put(SanselanConstants.BUFFERED_IMAGE_FACTORY,
new ManagedImageBufferedImageFactory());
// params.put(SanselanConstants.PARAM_KEY_VERBOSE, Boolean.TRUE);
// read image
BufferedImage image = Sanselan.getBufferedImage(file, params);
return image;
}
public static class ManagedImageBufferedImageFactory
implements
IBufferedImageFactory
{
public BufferedImage getColorBufferedImage(int width, int height,
boolean hasAlpha)
{
GraphicsEnvironment ge = GraphicsEnvironment
.getLocalGraphicsEnvironment();
GraphicsDevice gd = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gd.getDefaultConfiguration();
return gc.createCompatibleImage(width, height,
Transparency.TRANSLUCENT);
}
public BufferedImage getGrayscaleBufferedImage(int width, int height,
boolean hasAlpha)
{
return getColorBufferedImage(width, height, hasAlpha);
}
}
}