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libgimp: add gimp_drawable_get_format()

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This commit is contained in:
Michael Natterer
2012-04-02 20:43:38 +02:00
parent 1f09580aba
commit 79464eefce
3 changed files with 55 additions and 3 deletions
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3
libgimp/gimp.def
View File

@ -177,12 +177,13 @@ EXPORTS
gimp_drawable_free_shadow
gimp_drawable_get
gimp_drawable_get_buffer
gimp_drawable_get_shadow_buffer
gimp_drawable_get_color_uchar
gimp_drawable_get_format
gimp_drawable_get_image
gimp_drawable_get_linked
gimp_drawable_get_name
gimp_drawable_get_pixel
gimp_drawable_get_shadow_buffer
gimp_drawable_get_sub_thumbnail
gimp_drawable_get_sub_thumbnail_data
gimp_drawable_get_tattoo

53
libgimp/gimpdrawable.c
View File

@ -650,7 +650,7 @@ gimp_drawable_attach_new_parasite (gint32 drawable_ID,
/**
* gimp_drawable_get_buffer:
* @drawable_ID: the ID of the #GimpDrawableto get the buffer for.
* @drawable_ID: the ID of the #GimpDrawable to get the buffer for.
*
* Returns a #GeglBuffer of a specified drawable. The buffer can be used
* like any other GEGL buffer. Its data will we synced back with the core
@ -687,7 +687,7 @@ gimp_drawable_get_buffer (gint32 drawable_ID)
/**
* gimp_drawable_get_shadow_buffer:
* @drawable_ID: the ID of the #GimpDrawableto get the buffer for.
* @drawable_ID: the ID of the #GimpDrawable to get the buffer for.
*
* Returns a #GeglBuffer of a specified drawable's shadow tiles. The
* buffer can be used like any other GEGL buffer. Its data will we
@ -721,3 +721,52 @@ gimp_drawable_get_shadow_buffer (gint32 drawable_ID)
return NULL;
}
/**
* gimp_drawable_get_format:
* @drawable_ID: the ID of the #GimpDrawable to get the format for.
*
* Returns the #Babl format of the drawable.
*
* Return value: The #Babl format.
*
* Since: GIMP 2.10
*/
const Babl *
gimp_drawable_get_format (gint32 drawable_ID)
{
switch (gimp_drawable_type (drawable_ID))
{
case GIMP_RGB_IMAGE: return babl_format ("R'G'B' u8");
case GIMP_RGBA_IMAGE: return babl_format ("R'G'B'A u8");
case GIMP_GRAY_IMAGE: return babl_format ("Y' u8");
case GIMP_GRAYA_IMAGE: return babl_format ("Y'A u8");
case GIMP_INDEXED_IMAGE:
case GIMP_INDEXEDA_IMAGE:
{
gint32 image_ID = gimp_item_get_image (drawable_ID);
const Babl *pala;
const Babl *pal;
guchar *cmap;
gint n_cols;
cmap = gimp_image_get_colormap (image_ID, &n_cols);
babl_new_palette (NULL, &pal, &pala);
babl_palette_set_palette (pal, babl_format ("R'G'B' u8"),
cmap, n_cols);
g_free (cmap);
if (gimp_drawable_type (drawable_ID) == GIMP_INDEXEDA_IMAGE)
return pala;
return pal;
}
default:
g_warn_if_reached ();
}
return NULL;
}

2
libgimp/gimpdrawable.h
View File

@ -45,6 +45,8 @@ struct _GimpDrawable
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);
GimpDrawable * gimp_drawable_get (gint32 drawable_ID);
void gimp_drawable_detach (GimpDrawable *drawable);
void gimp_drawable_flush (GimpDrawable *drawable);