org.apache.fop.image.loader.batik.ImageLoaderWMF Maven / Gradle / Ivy
/*
* 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.
*/
/* $Id: ImageLoaderWMF.java 679326 2008-07-24 09:35:34Z vhennebert $ */
package org.apache.fop.image.loader.batik;
import java.io.IOException;
import java.util.Map;
import org.apache.xmlgraphics.image.loader.Image;
import org.apache.xmlgraphics.image.loader.ImageException;
import org.apache.xmlgraphics.image.loader.ImageFlavor;
import org.apache.xmlgraphics.image.loader.ImageInfo;
import org.apache.xmlgraphics.image.loader.ImageSessionContext;
import org.apache.xmlgraphics.image.loader.impl.AbstractImageLoader;
/**
* ImageLoader for WMF (Windows Metafile). Depends on the WMF preloader based on Apache Batik.
*/
public class ImageLoaderWMF extends AbstractImageLoader {
private ImageFlavor targetFlavor;
/**
* Main constructor.
* @param targetFlavor the target flavor
*/
public ImageLoaderWMF(ImageFlavor targetFlavor) {
if (!(ImageWMF.WMF_IMAGE.equals(targetFlavor))) {
throw new IllegalArgumentException("Unsupported target ImageFlavor: " + targetFlavor);
}
this.targetFlavor = targetFlavor;
}
/** {@inheritDoc} */
public ImageFlavor getTargetFlavor() {
return this.targetFlavor;
}
/** {@inheritDoc} */
public Image loadImage(ImageInfo info, Map hints, ImageSessionContext session)
throws ImageException, IOException {
if (!ImageWMF.MIME_WMF.equals(info.getMimeType())) {
throw new IllegalArgumentException("ImageInfo must be from a WMF image");
}
Image img = info.getOriginalImage();
if (!(img instanceof ImageWMF)) {
throw new IllegalArgumentException(
"ImageInfo was expected to contain the Windows Metafile (WMF)");
}
ImageWMF wmfImage = (ImageWMF)img;
return wmfImage;
}
}