/** {@inheritDoc} */
public RenderedImage getPreviewImage(ImageInfo imageInfo, int maxWidth, int maxHeight)
throws BadImageFileException, IOException, UnknownImageTypeException {
final ImageMetadata metadata = imageInfo.getMetadata();
final ImageMetadataDirectory dir = metadata.getDirectoryFor(CIFFDirectory.class);
if (dir != null) {
final ImageMetaValue colorSpace = dir.getValue(CIFF_COLOR_SPACE);
ColorSpace cs = JAIContext.sRGBColorSpace;
if (colorSpace != null)
switch (colorSpace.getIntValue()) {
case CIFF_COLOR_SPACE_ADOBE_RGB:
cs = JAIContext.adobeRGBColorSpace;
break;
}
final RenderedImage image =
JPEGImageType.getImageFromBuffer(
imageInfo.getByteBuffer(),
dir.getValue(CIFF_PREVIEW_IMAGE_OFFSET),
0,
dir.getValue(CIFF_PREVIEW_IMAGE_LENGTH),
cs,
maxWidth,
maxHeight);
if (image != null) return image;
}
return super.getPreviewImage(imageInfo, maxWidth, maxHeight);
}
/** {@inheritDoc} */
public String valueToString(ImageMetaValue value) {
switch (value.getOwningTagID()) {
case OLYMPUS_BLUE_BALANCE:
case OLYMPUS_RED_BALANCE:
return TextUtil.tenths(value.getFloatValue() / 256);
case OLYMPUS_CS_CUSTOM_SATURATION:
{
final String model = getOwningMetadata().getCameraMake(true);
if (model != null && model.contains("E-1")) {
final long[] n = ((LongMetaValue) value).getLongValues();
n[0] -= n[1];
n[2] -= n[1];
return n[0] + " (0," + n[2] + ')';
}
// no break;
}
case OLYMPUS_CS_CONTRAST_SETTING:
case OLYMPUS_CS_PM_CONTRAST:
case OLYMPUS_CS_PM_SATURATION:
case OLYMPUS_CS_PM_SHARPNESS:
case OLYMPUS_CS_SHARPNESS_SETTING:
{
final String[] values = value.getValues();
if (values.length != 3) return null;
return values[0] + " (" + values[1] + ',' + values[2] + ')';
}
case OLYMPUS_CS_PANORAMA_MODE:
{
if (value.getValueCount() != 2) break;
final int tagID = value.getOwningTagID();
return getTagValueLabelFor(tagID, value.getIntValue()) + ", " + value.getValues()[1];
}
case OLYMPUS_FOCAL_PLANE_DIAGONAL:
return value.getStringValue() + "mm"; // TODO: localize
}
return super.valueToString(value);
}
