Add gimp_image_metadata_update_pixel_size(), _bits_per_sample(),
_resolution() and use them from gimp_image_set_metadata() and from
various places in gimpimage.c which had identical copies of the same
code.
Also add gimp_image_metadata_update_colorspace() which syncs the color
space stored in the image's metadata with the color space of the
image's actual color profile. Call the function from the right places.
The body of gimp_image_metadata_update_colorspace() is currently
disabled because the syncing of color space information is
controversial, see issue ##3532 and issue #301.
Based on original patches from Hartmut Kuhse and modified
by Michael Natterer. Changes include:
- remove libexif dependency and add a hard dependency on gexiv2
- typedef GExiv2Metadata to GimpMetadata to avoid having to
include gexiv2 globally
- add basic GimpMetadata handling functions to libgimpbase
- add image and image file specific metadata functions to libgimp,
including the exif orientation image rotate dialog
- port plug-ins to use the new APIs
- port file-tiff-save's UI to GtkBuilder
- add new plug-in "metadata" to view the image's metadata
- keep metadata around as GimpImage member in the core
- update the image's metadata on image size, resolution and precision
changes
- obsolete the old metadata parasites
- migrate the old parasites to new GimpMetadata object on XCF load
Michael Natterer