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127 lines
4.6 KiB
127 lines
4.6 KiB
/**
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* EncodedImage
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* Copyright 2010 by Michael Christen
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* First released 28.07.2010 at http://yacy.net
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program in the file lgpl21.txt
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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package net.yacy.peers.graphics;
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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import net.yacy.cora.util.ByteBuffer;
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import net.yacy.visualization.AnimationGIF;
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import net.yacy.visualization.RasterPlotter;
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public class EncodedImage {
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private ByteBuffer image;
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private String extension;
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private boolean isStatic;
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/**
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* set an encoded image; prefer this over methods with Image-source objects because png generation is faster when done from RasterPlotter sources
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* @param sourceImage the image
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* @param targetExt the target extension of the image when converted into a file
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* @param isStatic shall be true if the image will never change, false if not
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*/
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public EncodedImage(final RasterPlotter sourceImage, final String targetExt, final boolean isStatic) {
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this.image = "png".equals(targetExt) ? sourceImage.exportPng() : RasterPlotter.exportImage(sourceImage.getImage(), targetExt);
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this.extension = targetExt;
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this.isStatic = isStatic;
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}
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/**
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* set an encoded image from a buffered image
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* @param sourceImage the image
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* @param targetExt the target extension of the image when converted into a file
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* @param isStatic shall be true if the image will never change, false if not
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*/
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public EncodedImage(final BufferedImage bi, final String targetExt, final boolean isStatic) {
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this.extension = targetExt;
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this.image = RasterPlotter.exportImage(bi, targetExt);
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this.isStatic = isStatic;
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}
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/**
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* set an encoded image from a buffered image
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* @param sourceImage the image
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* @param targetExt the target extension of the image when converted into a file
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* @param isStatic shall be true if the image will never change, false if not
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*/
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public EncodedImage(final Image i, final String targetExt, final boolean isStatic) {
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this.extension = targetExt;
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this.isStatic = isStatic;
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// generate an byte array from the generated image
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int width = i.getWidth(null);
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if (width < 0) {
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width = 96; // bad hack
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}
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int height = i.getHeight(null);
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if (height < 0) {
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height = 96; // bad hack
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}
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final BufferedImage sourceImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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sourceImage.createGraphics().drawImage(i, 0, 0, width, height, null);
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this.image = RasterPlotter.exportImage(sourceImage, targetExt);
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}
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/**
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* set an encoded image from an animated GIF. The target extension will be "gif"
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* @param sourceImage the image
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* @param isStatic shall be true if the image will never change, false if not
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*/
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public EncodedImage(final AnimationGIF sourceImage, final boolean isStatic) {
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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try {
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bos.write(sourceImage.get());
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bos.close();
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} catch (final IOException e) {
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}
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this.image = new ByteBuffer(bos.toByteArray());
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this.extension = "gif";
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this.isStatic = isStatic;
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}
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/**
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* get the encoded image
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* @return the bytes of the image encoded into the target extension format
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*/
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public ByteBuffer getImage() {
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return this.image;
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}
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/**
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* get the extension of the image
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* @return the target extension of the encoded image
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*/
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public String getExtension() {
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return this.extension;
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}
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/**
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* get information if the information changes in the future or not if it does not change, it is static
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* @return true if the image will never change, false if not
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*/
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public boolean isStatic() {
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return this.isStatic;
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}
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}
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