public static PixbufOrientation GetOrientation (Exif.ExifData data)
{
PixbufOrientation orientation = PixbufOrientation.TopLeft;
Exif.ExifEntry e = data.GetContents (Exif.Ifd.Zero).Lookup (Exif.Tag.Orientation);
if (e != null) {
ushort [] value = e.GetDataUShort ();
orientation = (PixbufOrientation) value [0];
}
return orientation;
}
public static void SaveJpeg (Pixbuf pixbuf, string path, int quality, Exif.ExifData exif_data)
{
Pixbuf temp = null;
if (pixbuf.HasAlpha) {
temp = Flatten (pixbuf);
pixbuf = temp;
}
// The DCF spec says thumbnails should be 160x120 always
Pixbuf thumbnail = ScaleToAspect (pixbuf, 160, 120);
byte [] thumb_data = Save (thumbnail, "jpeg", null, null);
exif_data.Data = thumb_data;
thumbnail.Dispose ();
// Most of the things we will set will be in the 0th ifd
Exif.ExifContent content = exif_data.GetContents (Exif.Ifd.Zero);
// reset the orientation tag the default is top/left
content.GetEntry (Exif.Tag.Orientation).Reset ();
// set the write time in the datetime tag
content.GetEntry (Exif.Tag.DateTime).Reset ();
// set the software tag
content.GetEntry (Exif.Tag.Software).SetData (FSpot.Defines.PACKAGE + " version " + FSpot.Defines.VERSION);
byte [] data = exif_data.Save ();
FPixbufJpegMarker [] marker = new FPixbufJpegMarker [0];
bool result = false;
unsafe {
if (data.Length > 0) {
fixed (byte *p = data) {
marker = new FPixbufJpegMarker [1];
marker [0].type = 0xe1; // APP1 marker
marker [0].data = p;
marker [0].length = data.Length;
result = f_pixbuf_save_jpeg (pixbuf.Handle, path, quality, marker, marker.Length);
}
} else
result = f_pixbuf_save_jpeg (pixbuf.Handle, path, quality, marker, marker.Length);
}
if (temp != null)
temp.Dispose ();
if (result == false)
throw new System.Exception ("Error Saving File");
}