public JFIFSegment(
int majorVersion,
int minorVersion,
int densityUnit,
int xDensity,
int yDensity,
JFIFThumbnail thumbnail) {
super(MetadataType.JPG_JFIF, null);
checkInput(majorVersion, minorVersion, densityUnit, xDensity, yDensity);
this.majorVersion = majorVersion;
this.minorVersion = minorVersion;
this.densityUnit = densityUnit;
this.xDensity = xDensity;
this.yDensity = yDensity;
if (thumbnail != null) {
int thumbnailWidth = thumbnail.getWidth();
int thumbnailHeight = thumbnail.getHeight();
if (thumbnailWidth < 0 || thumbnailWidth > 0xff)
throw new IllegalArgumentException(
"Thumbnail width " + thumbnailWidth + " out of range (0-0xff]");
if (thumbnailHeight < 0 || thumbnailHeight > 0xff)
throw new IllegalArgumentException(
"Thumbnail height " + thumbnailHeight + " out of range (0-0xff]");
this.thumbnailWidth = thumbnailWidth;
this.thumbnailHeight = thumbnailHeight;
this.thumbnail = thumbnail;
this.containsThumbnail = true;
}
isDataRead = true;
}
public void write(OutputStream os) throws IOException {
ensureDataRead();
IOUtils.write(os, majorVersion);
IOUtils.write(os, minorVersion);
IOUtils.write(os, densityUnit);
IOUtils.writeShortMM(os, getXDensity());
IOUtils.writeShortMM(os, getYDensity());
IOUtils.write(os, thumbnailWidth);
IOUtils.write(os, thumbnailHeight);
if (containsThumbnail) thumbnail.write(os);
}
