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/* Pango
* pango-coverage.h: Coverage sets for fonts
*
* Copyright (C) 2000 Red Hat Software
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __PANGO_COVERAGE_H__
#define __PANGO_COVERAGE_H__
#include <glib-object.h>
#include <pango/pango-version-macros.h>
#include <hb.h>
G_BEGIN_DECLS
/**
* PangoCoverage:
*
* A `PangoCoverage` structure is a map from Unicode characters
* to [enum@Pango.CoverageLevel] values.
*
* It is often necessary in Pango to determine if a particular
* font can represent a particular character, and also how well
* it can represent that character. The `PangoCoverage` is a data
* structure that is used to represent that information. It is an
* opaque structure with no public fields.
*/
typedef struct _PangoCoverage PangoCoverage;
/**
* PangoCoverageLevel:
* @PANGO_COVERAGE_NONE: The character is not representable with
* the font.
* @PANGO_COVERAGE_FALLBACK: The character is represented in a
* way that may be comprehensible but is not the correct
* graphical form. For instance, a Hangul character represented
* as a a sequence of Jamos, or a Latin transliteration of a
* Cyrillic word.
* @PANGO_COVERAGE_APPROXIMATE: The character is represented as
* basically the correct graphical form, but with a stylistic
* variant inappropriate for the current script.
* @PANGO_COVERAGE_EXACT: The character is represented as the
* correct graphical form.
*
* `PangoCoverageLevel` is used to indicate how well a font can
* represent a particular Unicode character for a particular script.
*
* Since 1.44, only %PANGO_COVERAGE_NONE and %PANGO_COVERAGE_EXACT
* will be returned.
*/
typedef enum {
PANGO_COVERAGE_NONE,
PANGO_COVERAGE_FALLBACK,
PANGO_COVERAGE_APPROXIMATE,
PANGO_COVERAGE_EXACT
} PangoCoverageLevel;
PANGO_AVAILABLE_IN_ALL
GType pango_coverage_get_type (void) G_GNUC_CONST;
PANGO_AVAILABLE_IN_ALL
PangoCoverage * pango_coverage_new (void);
PANGO_AVAILABLE_IN_ALL
PangoCoverage * pango_coverage_ref (PangoCoverage *coverage);
PANGO_AVAILABLE_IN_ALL
void pango_coverage_unref (PangoCoverage *coverage);
PANGO_AVAILABLE_IN_ALL
PangoCoverage * pango_coverage_copy (PangoCoverage *coverage);
PANGO_AVAILABLE_IN_ALL
PangoCoverageLevel pango_coverage_get (PangoCoverage *coverage,
int index_);
PANGO_AVAILABLE_IN_ALL
void pango_coverage_set (PangoCoverage *coverage,
int index_,
PangoCoverageLevel level);
PANGO_DEPRECATED_IN_1_44
void pango_coverage_max (PangoCoverage *coverage,
PangoCoverage *other);
PANGO_DEPRECATED_IN_1_44
void pango_coverage_to_bytes (PangoCoverage *coverage,
guchar **bytes,
int *n_bytes);
PANGO_DEPRECATED_IN_1_44
PangoCoverage *pango_coverage_from_bytes (guchar *bytes,
int n_bytes);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(PangoCoverage, pango_coverage_unref)
G_END_DECLS
#endif /* __PANGO_COVERAGE_H__ */
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