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pdb, libgimp, app: add gimp_drawable_get_thumbnail_format() 

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
app/pdb/drawable-cmds.c
View File

@ -90,6 +90,36 @@ drawable_get_format_invoker (GimpProcedure *procedure,
return return_vals;
}
static GimpValueArray *
drawable_get_thumbnail_format_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GimpValueArray *args,
GError **error)
{
gboolean success = TRUE;
GimpValueArray *return_vals;
GimpDrawable *drawable;
gchar *format = NULL;
drawable = gimp_value_get_drawable (gimp_value_array_index (args, 0), gimp);
if (success)
{
format = g_strdup (babl_format_get_encoding (gimp_drawable_get_preview_format (drawable)));
}
return_vals = gimp_procedure_get_return_values (procedure, success,
error ? *error : NULL);
if (success)
g_value_take_string (gimp_value_array_index (return_vals, 1), format);
return return_vals;
}
static GimpValueArray *
drawable_type_invoker (GimpProcedure *procedure,
Gimp *gimp,
@ -994,6 +1024,37 @@ register_drawable_procs (GimpPDB *pdb)
gimp_pdb_register_procedure (pdb, procedure);
g_object_unref (procedure);
/*
* gimp-drawable-get-thumbnail-format
*/
procedure = gimp_procedure_new (drawable_get_thumbnail_format_invoker);
gimp_object_set_static_name (GIMP_OBJECT (procedure),
"gimp-drawable-get-thumbnail-format");
gimp_procedure_set_static_strings (procedure,
"gimp-drawable-get-thumbnail-format",
"Returns the drawable's thumbnail Babl format",
"This procedure returns the drawable's thumbnail Babl format.\n"
"Thumbnails are always 8-bit images, see 'gimp-drawable-thumbnail' and 'gimp-drawable-sub-thmbnail'.",
"Michael Natterer <mitch@gimp.org>",
"Michael Natterer",
"2019",
NULL);
gimp_procedure_add_argument (procedure,
gimp_param_spec_drawable_id ("drawable",
"drawable",
"The drawable",
pdb->gimp, FALSE,
GIMP_PARAM_READWRITE));
gimp_procedure_add_return_value (procedure,
gimp_param_spec_string ("format",
"format",
"The drawable's thumbnail Babl format",
FALSE, FALSE, FALSE,
NULL,
GIMP_PARAM_READWRITE));
gimp_pdb_register_procedure (pdb, procedure);
g_object_unref (procedure);
/*
* gimp-drawable-type
*/

2
app/pdb/internal-procs.c
View File

@ -28,7 +28,7 @@
#include "internal-procs.h"
/* 734 procedures registered total */
/* 735 procedures registered total */
void
internal_procs_init (GimpPDB *pdb)

1
libgimp/gimp.def
View File

@ -212,6 +212,7 @@ EXPORTS
gimp_drawable_get_sub_thumbnail_data
gimp_drawable_get_thumbnail
gimp_drawable_get_thumbnail_data
gimp_drawable_get_thumbnail_format
gimp_drawable_get_tile
gimp_drawable_has_alpha
gimp_drawable_height

21
libgimp/gimpdrawable.c
View File

@ -437,3 +437,24 @@ gimp_drawable_get_format (gint32 drawable_ID)
return format;
}
/**
* gimp_drawable_get_thumbnail_format:
* @drawable_ID: the ID of the #GimpDrawable to get the thumbnail format for.
*
* Returns the #Babl thumbnail format of the drawable.
*
* Return value: The #Babl thumbnail format.
*
* Since: 2.10.14
*/
const Babl *
gimp_drawable_get_thumbnail_format (gint32 drawable_ID)
{
const Babl *format = NULL;
gchar *format_str = _gimp_drawable_get_thumbnail_format (drawable_ID);
if (format_str)
format = babl_format (format_str);
return format;
}

1
libgimp/gimpdrawable.h
View File

@ -46,6 +46,7 @@ GeglBuffer * gimp_drawable_get_buffer (gint32 drawable_ID)
GeglBuffer * gimp_drawable_get_shadow_buffer (gint32 drawable_ID);
const Babl * gimp_drawable_get_format (gint32 drawable_ID);
const Babl * gimp_drawable_get_thumbnail_format (gint32 drawable_ID);
GIMP_DEPRECATED_FOR(gimp_drawable_get_buffer)
GimpDrawable * gimp_drawable_get (gint32 drawable_ID);

34
libgimp/gimpdrawable_pdb.c
View File

@ -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.

1
libgimp/gimpdrawable_pdb.h
View File

@ -33,6 +33,7 @@ G_BEGIN_DECLS
G_GNUC_INTERNAL gchar* _gimp_drawable_get_format (gint32 drawable_ID);
G_GNUC_INTERNAL gchar* _gimp_drawable_get_thumbnail_format (gint32 drawable_ID);
GimpImageType gimp_drawable_type (gint32 drawable_ID);
GimpImageType gimp_drawable_type_with_alpha (gint32 drawable_ID);
gboolean gimp_drawable_has_alpha (gint32 drawable_ID);

33
pdb/groups/drawable.pdb
View File

@ -307,6 +307,38 @@ CODE
);
}
sub drawable_get_thumbnail_format {
$blurb = "Returns the drawable's thumbnail Babl format";
$help = <<'HELP';
This procedure returns the drawable's thumbnail Babl format.
Thumbnails are always 8-bit images, see gimp_drawable_thumbnail() and
gimp_drawable_sub_thmbnail().
HELP
&mitch_pdb_misc('2019', '2.10.14');
@inargs = (
{ name => 'drawable', type => 'drawable',
desc => 'The drawable' }
);
@outargs = (
{ name => 'format', type => 'string', wrap => 1,
desc => "The drawable's thumbnail Babl format" }
);
%invoke = (
code => <<'CODE'
{
format = g_strdup (babl_format_get_encoding (gimp_drawable_get_preview_format (drawable)));
}
CODE
);
}
sub drawable_type {
$blurb = "Returns the drawable's type.";
$help = "This procedure returns the drawable's type.";
@ -994,6 +1026,7 @@ CODE
"gimp-intl.h");
@procs = qw(drawable_get_format
drawable_get_thumbnail_format
drawable_type
drawable_type_with_alpha
drawable_has_alpha