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pdb, libgimp, app: add gimp_drawable_get_thumbnail_format()

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so plug-ins can allocate buffers and stuff before getting the actual
thumbnail data.
This commit is contained in:
Michael Natterer 2019-07-10 15:10:03 +02:00
parent 0326a3e79a
commit fc89dfb09b
8 changed files with 223 additions and 71 deletions
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34
libgimp/gimpdrawable_pdb.c
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@ -71,6 +71,40 @@ _gimp_drawable_get_format (gint32 drawable_ID)
return format;
}
/**
* _gimp_drawable_get_thumbnail_format:
* @drawable_ID: The drawable.
*
* Returns the drawable's thumbnail Babl format
*
* This procedure returns the drawable's thumbnail Babl format.
* Thumbnails are always 8-bit images, see gimp_drawable_thumbnail()
* and gimp_drawable_sub_thmbnail().
*
* Returns: The drawable's thumbnail Babl format.
*
* Since: 2.10.14
**/
gchar *
_gimp_drawable_get_thumbnail_format (gint32 drawable_ID)
{
GimpParam *return_vals;
gint nreturn_vals;
gchar *format = NULL;
return_vals = gimp_run_procedure ("gimp-drawable-get-thumbnail-format",
&nreturn_vals,
GIMP_PDB_DRAWABLE, drawable_ID,
GIMP_PDB_END);
if (return_vals[0].data.d_status == GIMP_PDB_SUCCESS)
format = g_strdup (return_vals[1].data.d_string);
gimp_destroy_params (return_vals, nreturn_vals);
return format;
}
/**
* gimp_drawable_type:
* @drawable_ID: The drawable.