| /* |
| * 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.commons.sanselan.examples; |
| |
| 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.commons.sanselan.ImageReadException; |
| import org.apache.commons.sanselan.Sanselan; |
| import org.apache.commons.sanselan.SanselanConstants; |
| import org.apache.commons.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); |
| } |
| } |
| |
| } |