From 5ed0b64eacc6956637e2f08f8fb17e1260e175e6 Mon Sep 17 00:00:00 2001 From: eschaeffer Date: Wed, 24 May 2000 10:43:05 +0000 Subject: [PATCH] Re-adding GifJpegImage class, implementing new FopImage interface git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@193385 13f79535-47bb-0310-9956-ffa450edef68 --- src/org/apache/fop/image/GifJpegImage.java | 318 +++++++++++++++++++++ 1 file changed, 318 insertions(+) create mode 100644 src/org/apache/fop/image/GifJpegImage.java diff --git a/src/org/apache/fop/image/GifJpegImage.java b/src/org/apache/fop/image/GifJpegImage.java new file mode 100644 index 000000000..5b1291838 --- /dev/null +++ b/src/org/apache/fop/image/GifJpegImage.java @@ -0,0 +1,318 @@ +/* + + ============================================================================ + The Apache Software License, Version 1.1 + ============================================================================ + + Copyright (C) 1999 The Apache Software Foundation. All rights reserved. + + Redistribution and use in source and binary forms, with or without modifica- + tion, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + 3. The end-user documentation included with the redistribution, if any, must + include the following acknowledgment: "This product includes software + developed by the Apache Software Foundation (http://www.apache.org/)." + Alternately, this acknowledgment may appear in the software itself, if + and wherever such third-party acknowledgments normally appear. + + 4. The names "Fop" and "Apache Software Foundation" must not be used to + endorse or promote products derived from this software without prior + written permission. For written permission, please contact + apache@apache.org. + + 5. Products derived from this software may not be called "Apache", nor may + "Apache" appear in their name, without prior written permission of the + Apache Software Foundation. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU- + DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + This software consists of voluntary contributions made by many individuals + on behalf of the Apache Software Foundation and was originally created by + James Tauber . For more information on the Apache + Software Foundation, please see . + + */ + +//Author: Eric SCHAEFFER +//Description: implement FopImage using AWT classes (for Gif or Jpeg images) + +package org.apache.fop.image; + +import org.apache.fop.datatypes.ColorSpace; +import org.apache.fop.pdf.PDFColor; +import org.apache.fop.pdf.PDFFilter; + +// Java +import java.util.Hashtable; +import java.net.URL; +import java.io.IOException; +//import java.io.PrintWriter; +import java.awt.image.*; +import java.awt.*; + +import java.lang.reflect.Array; + +public class GifJpegImage implements FopImage { + + int m_width = 0; + int m_height = 0; + URL m_href = null; + ColorSpace m_colorSpace = null; + int m_bitsPerPixel = 0; + byte[] m_bitmaps = null; + int m_bitmapsSize = 0; + boolean m_isTransparent = false; + PDFColor m_transparentColor = null; + + // Init the object. + // If href protocol isn't file://, can load the entire image + // and keep it in memory. + // Should cache the input stream, and load data when needed. + public GifJpegImage(URL href) throws FopImageException { + this.m_href = href; + } + + protected void getImage() throws FopImageException { + int[] tmpMap = null; + try { + ImageProducer ip = (ImageProducer)this.m_href.getContent(); + FopImageConsumer consumer = new FopImageConsumer(); + ip.startProduction(consumer); + + while (! consumer.isImageReady()) {} + this.m_height = consumer.getHeight(); + this.m_width = consumer.getWidth(); + + tmpMap = new int[this.m_width * this.m_height]; + PixelGrabber pg = new PixelGrabber( + ip, + 0, 0, + this.m_width, this.m_height, + tmpMap, + 0, this.m_width + ); + try { + pg.grabPixels(); + } catch (InterruptedException intex) { + throw new FopImageException("Image grabbing interrupted : " + intex.getMessage()); + } + } catch (Exception ex) { + throw new FopImageException("Error while loading image " + this.m_href.toString() + " : " + ex.getClass() + " - " + ex.getMessage()); + } + + // Should take care of the ColorSpace and bitsPerPixel + this.m_bitmaps = new byte[this.m_width * this.m_height * 3]; + for (int i = 0; i < this.m_height; i++) { + for (int j = 0; j < this.m_width; j++) { + int p = tmpMap[i * this.m_width + j]; + int r = (p >> 16) & 0xFF; + int g = (p >> 8) & 0xFF; + int b = (p ) & 0xFF; + this.m_bitmaps[3 * (i * this.m_width + j)] = (byte) (r & 0xFF); + this.m_bitmaps[3 * (i * this.m_width + j) + 1] = (byte) (g & 0xFF); + this.m_bitmaps[3 * (i * this.m_width + j) + 2] = (byte) (b & 0xFF); + } + } + this.m_bitmapsSize = java.lang.reflect.Array.getLength(this.m_bitmaps); + + this.m_bitsPerPixel = 8; + this.m_colorSpace = new ColorSpace(ColorSpace.DEVICE_RGB); + } + + // Get image general properties. + // Methods throw exception because they can retrieve data + // when needed. + + // Ressource location + public String getURL() { + return this.m_href.toString(); + } + + // image size + public int getWidth() throws FopImageException { + if (this.m_width == 0) this.getImage(); + + return this.m_width; + } + + public int getHeight() throws FopImageException { + if (this.m_height == 0) this.getImage(); + + return this.m_height; + } + + // DeviceGray, DeviceRGB, or DeviceCMYK + public ColorSpace getColorSpace() throws FopImageException { + if (this.m_colorSpace == null) this.getImage(); + + return this.m_colorSpace; + } + + // bits per pixel + public int getBitsPerPixel() throws FopImageException { + if (this.m_bitsPerPixel == 0) this.getImage(); + + return this.m_bitsPerPixel; + } + + // For transparent images + public boolean isTransparent() throws FopImageException { + return false; + } + + public PDFColor getTransparentColor() throws FopImageException { + return null; + } + + // get the image bytes, and bytes properties + + // get uncompressed image bytes + public byte[] getBitmaps() throws FopImageException { + if (this.m_bitmaps == null) this.getImage(); + + return this.m_bitmaps; + } +// width * (bitsPerPixel / 8) * height, no ? + public int getBitmapsSize() throws FopImageException { + if (this.m_bitmapsSize == 0) this.getImage(); + + return this.m_bitmapsSize; + } + + // get compressed image bytes + // I don't know if we really need it, nor if it + // should be changed... + public byte[] getRessourceBytes() throws FopImageException { + return null; + } + public int getRessourceBytesSize() throws FopImageException { + return 0; + } + // return null if no corresponding PDFFilter + public PDFFilter getPDFFilter() throws FopImageException { + return null; + } + + // release memory + public void close() { + /* For the moment, only release the bitmaps (image areas + can share the same FopImage object) + Thus, even if it had been called, other properties + are still available. + */ +// this.m_width = 0; +// this.m_height = 0; +// this.m_href = null; +// this.m_colorSpace = null; +// this.m_bitsPerPixel = 0; + this.m_bitmaps = null; + this.m_bitmapsSize = 0; +// this.m_isTransparent = false; +// this.m_transparentColor = null; + } + + // CONSUMER CLASS + public class FopImageConsumer implements ImageConsumer { + int width = -1; + int height = -1; + Integer imageStatus = new Integer(-1); + + public FopImageConsumer() { + } + + public void imageComplete(int status) { + synchronized(this.imageStatus) { + // Need to stop status if image done + if (this.imageStatus.intValue() != ImageConsumer.STATICIMAGEDONE) + this.imageStatus = new Integer(status); + } +/* +System.err.print("Status "); +if (status == ImageConsumer.COMPLETESCANLINES) { + System.err.println("CompleteScanLines"); +} else if (status == ImageConsumer.IMAGEABORTED) { + System.err.println("ImageAborted"); +} else if (status == ImageConsumer.IMAGEERROR) { + System.err.println("ImageError"); +} else if (status == ImageConsumer.RANDOMPIXELORDER) { + System.err.println("RandomPixelOrder"); +} else if (status == ImageConsumer.SINGLEFRAME) { + System.err.println("SingleFrame"); +} else if (status == ImageConsumer.SINGLEFRAMEDONE) { + System.err.println("SingleFrameDone"); +} else if (status == ImageConsumer.SINGLEPASS) { + System.err.println("SinglePass"); +} else if (status == ImageConsumer.STATICIMAGEDONE) { + System.err.println("StaticImageDone"); +} else if (status == ImageConsumer.TOPDOWNLEFTRIGHT) { + System.err.println("TopDownLeftRight"); +} +*/ + } + + public boolean isImageReady() + throws Exception { + synchronized(this.imageStatus) { + if ( this.imageStatus.intValue() != -1 ) { + String statusStr = null; + if ( this.imageStatus.intValue() == ImageConsumer.IMAGEABORTED ) { + statusStr = new String("Image Aborted"); + } else if ( this.imageStatus.intValue() == ImageConsumer.IMAGEERROR ) { + statusStr = new String("Image Error"); + } + if ( statusStr != null ) { + throw new Exception("Error in image consumer (" + statusStr + ")"); + } + + if ( this.imageStatus.intValue() == ImageConsumer.STATICIMAGEDONE ) { + return true; + } + } + return false; + } + } + + public void setColorModel(ColorModel model) {} + + public void setDimensions(int width, int height) { + this.width = width; + this.height = height; + } + + public void setHints(int hintflags) {} + + public void setPixels(int x, int y, int w, int h, + ColorModel model, byte[] pixels,int off, + int scansize) {} + + public void setPixels(int x, int y, int w, int h, + ColorModel model, int[] pixels, int off, + int scansize) {} + + public void setProperties(Hashtable props) {} + + public int getWidth() { + return this.width; + } + + public int getHeight() { + return this.height; + } + } +} -- 2.39.5