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- /*
- * 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.image;
-
- // Java
- import java.util.Hashtable;
- import java.awt.image.ColorModel;
- import java.awt.image.ImageConsumer;
- import java.awt.image.ImageProducer;
- import java.awt.image.PixelGrabber;
-
- /**
- * ImageConsumer implementation for FopImage classes.
- */
- public class FopImageConsumer implements ImageConsumer {
-
- /** Image width in pixels */
- protected int width = -1;
- /** Image height in pixels */
- protected int height = -1;
- /** Image status */
- protected Integer imageStatus = new Integer(-1);
- /** hints */
- protected int hints = 0;
- /** Image properties */
- protected Hashtable properties = null;
- /** Color model */
- protected ColorModel cm = null;
- /** Image producer */
- protected ImageProducer ip = null;
-
- /**
- * Main constructor
- * @param iprod ImageProducer to use
- */
- public FopImageConsumer(ImageProducer iprod) {
- this.ip = iprod;
- }
-
- /**
- * {@inheritDoc}
- */
- public void imageComplete(int status) {
- /*
- * log.error("Status ");
- * if (status == ImageConsumer.COMPLETESCANLINES) {
- * log.error("CompleteScanLines");
- * } else if (status == ImageConsumer.IMAGEABORTED) {
- * log.error("ImageAborted");
- * } else if (status == ImageConsumer.IMAGEERROR) {
- * log.error("ImageError");
- * } else if (status == ImageConsumer.RANDOMPIXELORDER) {
- * log.error("RandomPixelOrder");
- * } else if (status == ImageConsumer.SINGLEFRAME) {
- * log.error("SingleFrame");
- * } else if (status == ImageConsumer.SINGLEFRAMEDONE) {
- * log.error("SingleFrameDone");
- * } else if (status == ImageConsumer.SINGLEPASS) {
- * log.error("SinglePass");
- * } else if (status == ImageConsumer.STATICIMAGEDONE) {
- * log.error("StaticImageDone");
- * } else if (status == ImageConsumer.TOPDOWNLEFTRIGHT) {
- * log.error("TopDownLeftRight");
- * }
- */
- synchronized (this.imageStatus) {
- // Need to stop status if image done
- if (imageStatus.intValue() != ImageConsumer.STATICIMAGEDONE
- && imageStatus.intValue() != ImageConsumer.SINGLEFRAMEDONE) {
- this.imageStatus = new Integer(status);
- }
- }
- }
-
- /**
- * {@inheritDoc}
- */
- public void setColorModel(ColorModel model) {
- // log.error("setColorModel: " + model);
- this.cm = model;
- }
-
- /**
- * {@inheritDoc}
- */
- public void setDimensions(int width, int height) {
- // log.error("setDimension: w=" + width + " h=" + height);
- this.width = width;
- this.height = height;
- }
-
- /**
- * {@inheritDoc}
- */
- public void setHints(int hintflags) {
- // log.error("setHints: " + hintflags);
- this.hints = hintflags;
- }
-
- /**
- * {@inheritDoc}
- */
- public void setProperties(Hashtable props) {
- // log.error("setProperties: " + props);
- this.properties = props;
- }
-
- /**
- * {@inheritDoc}
- */
- public void setPixels(int x, int y, int w, int h, ColorModel model,
- byte[] pixels, int off, int scansize) {
- }
-
- /**
- * {@inheritDoc}
- */
- public void setPixels(int x, int y, int w, int h, ColorModel model,
- int[] pixels, int off, int scansize) {
- }
-
- /**
- * Indicates whether the image is ready.
- * @return boolean True if the image is ready, false if it's still loading
- * @throws Exception If an error happened while loading the image
- */
- public boolean isImageReady() throws Exception {
- /**@todo Use a better exception than Exception */
- synchronized (this.imageStatus) {
- if (this.imageStatus.intValue() == ImageConsumer.IMAGEABORTED) {
- throw new Exception("Image aborted");
- }
- if (this.imageStatus.intValue() == ImageConsumer.IMAGEERROR) {
- throw new Exception("Image error");
- }
-
- if (imageStatus.intValue() == ImageConsumer.STATICIMAGEDONE
- || imageStatus.intValue() == ImageConsumer.SINGLEFRAMEDONE) {
- return true;
- }
-
- return false;
- }
- }
-
- /**
- * Returns the image width
- * @return the width in pixels
- */
- public int getWidth() {
- return this.width;
- }
-
- /**
- * Returns the image height
- * @return the height in pixels
- */
- public int getHeight() {
- return this.height;
- }
-
- /**
- * Returns the color model of the image
- * @return the color model
- */
- public ColorModel getColorModel() {
- return this.cm;
- }
-
- /**
- * Returns the bitmap as an array.
- * @return the bitmap as an array.
- * @throws Exception if an error occured while generating the array
- */
- public int[] getImage() throws Exception {
- int tmpMap[] = new int[this.width * this.height];
- PixelGrabber pg = new PixelGrabber(this.ip, 0, 0, this.width,
- this.height, tmpMap, 0, this.width);
- pg.setDimensions(this.width, this.height);
- pg.setColorModel(this.cm);
- pg.setHints(this.hints);
- pg.setProperties(this.properties);
- try {
- pg.grabPixels();
- } catch (InterruptedException intex) {
- /**@todo Use a better exception than Exception */
- throw new Exception("Image grabbing interrupted : "
- + intex.getMessage());
- }
- return tmpMap;
- }
-
- }
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