protected Object clone() {
JFIFExtensionMarkerSegment newGuy = (JFIFExtensionMarkerSegment) super.clone();
if (thumb != null) {
newGuy.thumb = (JFIFThumb) thumb.clone();
}
return newGuy;
}
/** Prints out the contents of this object to System.out for debugging. */
void print() {
printTag("JFIF");
System.out.print("Version ");
System.out.print(majorVersion);
System.out.println(".0" + Integer.toString(minorVersion));
System.out.print("Resolution units: ");
System.out.println(resUnits);
System.out.print("X density: ");
System.out.println(Xdensity);
System.out.print("Y density: ");
System.out.println(Ydensity);
System.out.print("Thumbnail Width: ");
System.out.println(thumbWidth);
System.out.print("Thumbnail Height: ");
System.out.println(thumbHeight);
if (!extSegments.isEmpty()) {
for (Iterator iter = extSegments.iterator(); iter.hasNext(); ) {
JFIFExtensionMarkerSegment extSegment = (JFIFExtensionMarkerSegment) iter.next();
extSegment.print();
}
}
if (iccSegment != null) {
iccSegment.print();
}
}
/** Writes out a new JFXX extension segment, without saving it. */
private void writeJFXXSegment(
int index, BufferedImage thumbnail, ImageOutputStream ios, JPEGImageWriter writer)
throws IOException {
JFIFExtensionMarkerSegment jfxx = null;
try {
jfxx = new JFIFExtensionMarkerSegment(thumbnail);
} catch (IllegalThumbException e) {
writer.warningOccurred(JPEGImageWriter.WARNING_ILLEGAL_THUMBNAIL);
return;
}
writer.thumbnailStarted(index);
jfxx.write(ios, writer);
writer.thumbnailComplete();
}
/** Returns a deep-copy clone of this object. */
protected Object clone() {
JFIFMarkerSegment newGuy = (JFIFMarkerSegment) super.clone();
if (!extSegments.isEmpty()) { // Clone the list with a deep copy
newGuy.extSegments = new ArrayList();
for (Iterator iter = extSegments.iterator(); iter.hasNext(); ) {
JFIFExtensionMarkerSegment jfxx = (JFIFExtensionMarkerSegment) iter.next();
newGuy.extSegments.add(jfxx.clone());
}
}
if (iccSegment != null) {
newGuy.iccSegment = (ICCMarkerSegment) iccSegment.clone();
}
return newGuy;
}
/**
* Returns a tree of DOM nodes representing this object and any subordinate JFXX extension or ICC
* Profile segments.
*/
IIOMetadataNode getNativeNode() {
IIOMetadataNode node = new IIOMetadataNode("app0JFIF");
node.setAttribute("majorVersion", Integer.toString(majorVersion));
node.setAttribute("minorVersion", Integer.toString(minorVersion));
node.setAttribute("resUnits", Integer.toString(resUnits));
node.setAttribute("Xdensity", Integer.toString(Xdensity));
node.setAttribute("Ydensity", Integer.toString(Ydensity));
node.setAttribute("thumbWidth", Integer.toString(thumbWidth));
node.setAttribute("thumbHeight", Integer.toString(thumbHeight));
if (!extSegments.isEmpty()) {
IIOMetadataNode JFXXnode = new IIOMetadataNode("JFXX");
node.appendChild(JFXXnode);
for (Iterator iter = extSegments.iterator(); iter.hasNext(); ) {
JFIFExtensionMarkerSegment seg = (JFIFExtensionMarkerSegment) iter.next();
JFXXnode.appendChild(seg.getNativeNode());
}
}
if (iccSegment != null) {
node.appendChild(iccSegment.getNativeNode());
}
return node;
}
private void writeThumb(
ImageOutputStream ios,
BufferedImage thumb,
JFIFExtensionMarkerSegment jfxx,
int index,
boolean onlyOne,
JPEGImageWriter writer)
throws IOException {
ColorModel cm = thumb.getColorModel();
ColorSpace cs = cm.getColorSpace();
if (cm instanceof IndexColorModel) {
// We never write a palette image into the header
// So if it's the only one, we need to write the header first
if (onlyOne) {
write(ios, writer);
}
if ((jfxx == null) || (jfxx.code == THUMB_PALETTE)) {
writeJFXXSegment(index, thumb, ios, writer); // default
} else {
// Expand to RGB
BufferedImage thumbRGB =
((IndexColorModel) cm).convertToIntDiscrete(thumb.getRaster(), false);
jfxx.setThumbnail(thumbRGB);
writer.thumbnailStarted(index);
jfxx.write(ios, writer); // Handles clipping if needed
writer.thumbnailComplete();
}
} else if (cs.getType() == ColorSpace.TYPE_RGB) {
if (jfxx == null) {
if (onlyOne) {
write(ios, thumb, writer); // As part of the header
} else {
writeJFXXSegment(index, thumb, ios, writer); // default
}
} else {
// If this is the only one, write the header first
if (onlyOne) {
write(ios, writer);
}
if (jfxx.code == THUMB_PALETTE) {
writeJFXXSegment(index, thumb, ios, writer); // default
writer.warningOccurred(JPEGImageWriter.WARNING_NO_RGB_THUMB_AS_INDEXED);
} else {
jfxx.setThumbnail(thumb);
writer.thumbnailStarted(index);
jfxx.write(ios, writer); // Handles clipping if needed
writer.thumbnailComplete();
}
}
} else if (cs.getType() == ColorSpace.TYPE_GRAY) {
if (jfxx == null) {
if (onlyOne) {
BufferedImage thumbRGB = expandGrayThumb(thumb);
write(ios, thumbRGB, writer); // As part of the header
} else {
writeJFXXSegment(index, thumb, ios, writer); // default
}
} else {
// If this is the only one, write the header first
if (onlyOne) {
write(ios, writer);
}
if (jfxx.code == THUMB_RGB) {
BufferedImage thumbRGB = expandGrayThumb(thumb);
writeJFXXSegment(index, thumbRGB, ios, writer);
} else if (jfxx.code == THUMB_JPEG) {
jfxx.setThumbnail(thumb);
writer.thumbnailStarted(index);
jfxx.write(ios, writer); // Handles clipping if needed
writer.thumbnailComplete();
} else if (jfxx.code == THUMB_PALETTE) {
writeJFXXSegment(index, thumb, ios, writer); // default
writer.warningOccurred(JPEGImageWriter.WARNING_NO_GRAY_THUMB_AS_INDEXED);
}
}
} else {
writer.warningOccurred(JPEGImageWriter.WARNING_ILLEGAL_THUMBNAIL);
}
}
