public override void Select (SemWeb.StatementSink sink)
{
/* this is just a sanity pass, if the first ifd is not a subfile use the normal
* tiff path
*/
DirectoryEntry e = Header.Directory.Lookup (TagId.NewSubfileType);
if (e == null) {
base.Select (sink);
return;
}
/*
* Even though Ifd0 doesn't have the full resolution image
* it would have the XMP data so we look for it
*/
e = Header.Directory.Lookup (TagId.XMP);
if (e != null) {
System.IO.Stream xmpstream = new System.IO.MemoryStream (e.RawData);
FSpot.Xmp.XmpFile xmp = new FSpot.Xmp.XmpFile (xmpstream);
xmp.Select (sink);
}
/*
* Ifd0 will also have the exif directory
*/
ImageDirectory dir = Header.Directory;
SubdirectoryEntry sub = (SubdirectoryEntry) dir.Lookup (TagId.ExifIfdPointer);
if (sub != null)
Header.SelectDirectory (sub.Directory [0], sink);
/*
* now we lookup subifd0 (we should probably scan the newsubfile types here)
* and load the metadata we are interested in from it.
*/
sub = (SubdirectoryEntry) Header.Directory.Lookup (TagId.SubIFDs);
int i = 0;
do {
uint dirtype = e.ValueAsLong [0];
if (dirtype == 0) {
Header.SelectDirectory (dir, sink);
break;
}
if (sub == null)
break;
dir = sub.Directory [i];
e = dir.Lookup (TagId.NewSubfileType);
i++;
} while (i < sub.Directory.Length);
}
/**
Title Short (one line) title or caption for image
Author Name of image's creator
Description Description of image (possibly long)
Copyright Copyright notice
Creation Time Time of original image creation
Software Software used to create the image
Disclaimer Legal disclaimer
Warning Warning of nature of content
Source Device used to create the image
Comment Miscellaneous comment
xmp is XML:com.adobe.xmp
Other keywords may be defined for other purposes. Keywords of general interest can be registered with th
*/
public void Select(SemWeb.StatementSink sink)
{
foreach (Chunk c in Chunks) {
if (c is IhdrChunk) {
IhdrChunk ih = c as IhdrChunk;
MetadataStore.AddLiteral (sink, "tiff:ImageWidth", ih.Width.ToString ());
MetadataStore.AddLiteral (sink, "tiff:ImageLength", ih.Height.ToString ());
} else if(c is TimeChunk) {
TimeChunk tc = c as TimeChunk;
MetadataStore.AddLiteral (sink, "xmp:ModifyDate", tc.Time.ToString ("yyyy-MM-ddThh:mm:ss"));
} else if (c is TextChunk) {
TextChunk text = c as TextChunk;
switch (text.Keyword) {
case "XMP":
case "XML:com.adobe.xmp":
using (System.IO.Stream xmpstream = new System.IO.MemoryStream (text.TextData)) {
FSpot.Xmp.XmpFile xmp = new FSpot.Xmp.XmpFile (xmpstream);
xmp.Select (sink);
}
break;
case "Comment":
MetadataStore.AddLiteral (sink, "exif:UserComment", text.Text);
break;
case "Software":
MetadataStore.AddLiteral (sink, "xmp:CreatorTool", text.Text);
break;
case "Title":
MetadataStore.AddLiteral (sink, "dc:title", "rdf:Alt", new SemWeb.Literal (text.Text, "x-default", null));
break;
case "Author":
MetadataStore.AddLiteral (sink, "dc:creator", "rdf:Seq", new SemWeb.Literal (text.Text));
break;
case "Copyright":
MetadataStore.AddLiteral (sink, "dc:rights", "rdf:Alt", new SemWeb.Literal (text.Text, "x-default", null));
break;
case "Description":
MetadataStore.AddLiteral (sink, "dc:description", "rdf:Alt", new SemWeb.Literal (text.Text, "x-default", null));
break;
case "Creation Time":
try {
System.DateTime time = System.DateTime.Parse (text.Text);
MetadataStore.AddLiteral (sink, "xmp:CreateDate", time.ToString ("yyyy-MM-ddThh:mm:ss"));
} catch (System.Exception e) {
System.Console.WriteLine (e.ToString ());
}
break;
}
} else if (c is ColorChunk) {
ColorChunk color = (ColorChunk)c;
string [] whitepoint = new string [2];
whitepoint [0] = color.WhiteX.ToString ();
whitepoint [1] = color.WhiteY.ToString ();
MetadataStore.Add (sink, "tiff:WhitePoint", "rdf:Seq", whitepoint);
int i = 0;
string [] rgb = new string [6];
rgb [i++] = color.RedX.ToString ();
rgb [i++] = color.RedY.ToString ();
rgb [i++] = color.GreenX.ToString ();
rgb [i++] = color.GreenY.ToString ();
rgb [i++] = color.BlueX.ToString ();
rgb [i++] = color.BlueY.ToString ();
MetadataStore.Add (sink, "tiff:PrimaryChromaticities", "rdf:Seq", rgb);
} else if (c.Name == "sRGB") {
MetadataStore.AddLiteral (sink, "exif:ColorSpace", "1");
} else if (c is PhysChunk) {
PhysChunk phys = (PhysChunk)c;
uint denominator = (uint) (phys.InMeters ? 100 : 1);
MetadataStore.AddLiteral (sink, "tiff:ResolutionUnit", phys.InMeters ? "3" : "1");
MetadataStore.AddLiteral (sink, "tiff:XResolution", new FSpot.Tiff.Rational (phys.PixelsPerUnitX, denominator).ToString ());
MetadataStore.AddLiteral (sink, "tiff:YResolution", new FSpot.Tiff.Rational (phys.PixelsPerUnitY, denominator).ToString ());
}
}
}