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/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.image;
// Java
import java.net.URL;
import java.awt.image.ImageProducer;
import java.awt.image.ColorModel;
import java.awt.image.IndexColorModel;
// Jimi
import com.sun.jimi.core.*;
// FOP
import org.apache.fop.datatypes.ColorSpace;
import org.apache.fop.pdf.PDFColor;
import org.apache.fop.image.analyser.ImageReader;
/**
* FopImage object for several images types, using Jimi.
* See Jimi documentation for supported image types.
* @author Eric SCHAEFFER
* @see AbstractFopImage
* @see FopImage
*/
public class JimiImage extends AbstractFopImage {
public JimiImage(URL href) throws FopImageException {
super(href);
try {
Class c = Class.forName("com.sun.jimi.core.Jimi");
} catch (ClassNotFoundException e) {
throw new FopImageException("Jimi image library not available");
}
}
public JimiImage(URL href,
ImageReader imgReader) throws FopImageException {
super(href, imgReader);
try {
Class c = Class.forName("com.sun.jimi.core.Jimi");
} catch (ClassNotFoundException e) {
throw new FopImageException("Jimi image library not available");
}
}
protected void loadImage() throws FopImageException {
int[] tmpMap = null;
try {
ImageProducer ip = Jimi.getImageProducer(this.m_href.openStream(),
Jimi.SYNCHRONOUS
| Jimi.IN_MEMORY);
FopImageConsumer consumer = new FopImageConsumer(ip);
ip.startProduction(consumer);
while (!consumer.isImageReady()) {
Thread.sleep(500);
}
this.m_height = consumer.getHeight();
this.m_width = consumer.getWidth();
try {
tmpMap = consumer.getImage();
} catch (Exception ex) {
throw new FopImageException("Image grabbing interrupted : "
+ ex.getMessage());
}
ColorModel cm = consumer.getColorModel();
this.m_bitsPerPixel = 8;
// this.m_bitsPerPixel = cm.getPixelSize();
this.m_colorSpace = new ColorSpace(ColorSpace.DEVICE_RGB);
if (cm.hasAlpha()) {
int transparencyType =
cm.getTransparency(); // java.awt.Transparency. BITMASK or OPAQUE or TRANSLUCENT
if (transparencyType == java.awt.Transparency.OPAQUE) {
this.m_isTransparent = false;
} else if (transparencyType
== java.awt.Transparency.BITMASK) {
if (cm instanceof IndexColorModel) {
this.m_isTransparent = false;
byte[] alphas =
new byte[((IndexColorModel)cm).getMapSize()];
byte[] reds =
new byte[((IndexColorModel)cm).getMapSize()];
byte[] greens =
new byte[((IndexColorModel)cm).getMapSize()];
byte[] blues =
new byte[((IndexColorModel)cm).getMapSize()];
((IndexColorModel)cm).getAlphas(alphas);
((IndexColorModel)cm).getReds(reds);
((IndexColorModel)cm).getGreens(greens);
((IndexColorModel)cm).getBlues(blues);
for (int i = 0;
i < ((IndexColorModel)cm).getMapSize(); i++) {
if ((alphas[i] & 0xFF) == 0) {
this.m_isTransparent = true;
this.m_transparentColor =
new PDFColor((int)(reds[i] & 0xFF),
(int)(greens[i] & 0xFF),
(int)(blues[i] & 0xFF));
break;
}
}
} else {
// TRANSLUCENT
/*
* this.m_isTransparent = false;
* for (int i = 0; i < this.m_width * this.m_height; i++) {
* if (cm.getAlpha(tmpMap[i]) == 0) {
* this.m_isTransparent = true;
* this.m_transparentColor = new PDFColor(cm.getRed(tmpMap[i]), cm.getGreen(tmpMap[i]), cm.getBlue(tmpMap[i]));
* break;
* }
* }
*/
// use special API...
this.m_isTransparent = false;
}
} else {
this.m_isTransparent = false;
}
} else {
this.m_isTransparent = false;
}
} 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_bitmapsSize = this.m_width * this.m_height * 3;
this.m_bitmaps = new byte[this.m_bitmapsSize];
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);
}
}
}
}
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