org.apache.poi.xslf.util.BitmapFormat Maven / Gradle / Ivy
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This OSGi bundle wraps poi, poi-ooxml, and poi-scratchpad ${pkgVersion} jar files.
/*
* ====================================================================
* 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.poi.xslf.util;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.lang.ref.WeakReference;
import javax.imageio.ImageIO;
import org.apache.poi.sl.draw.Drawable;
import org.apache.poi.util.Internal;
@Internal
public class BitmapFormat implements OutputFormat {
private final String format;
private BufferedImage img;
private Graphics2D graphics;
public BitmapFormat(String format) {
this.format = format;
}
@Override
public Graphics2D addSlide(double width, double height) {
int type;
switch (format) {
case "png":
case "gif":
type = BufferedImage.TYPE_INT_ARGB;
break;
default:
type = BufferedImage.TYPE_INT_RGB;
break;
}
img = new BufferedImage((int)width, (int)height, type);
graphics = img.createGraphics();
graphics.setRenderingHint(Drawable.BUFFERED_IMAGE, new WeakReference<>(img));
return graphics;
}
@Override
public void writeSlide(MFProxy proxy, File outFile) throws IOException {
if (!"null".equals(format)) {
ImageIO.write(img, format, outFile);
}
}
@Override
public void close() throws IOException {
if (graphics != null) {
graphics.dispose();
img.flush();
}
}
}