109 lines
3.7 KiB
C
109 lines
3.7 KiB
C
/* Pango
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* pango-coverage.h: Coverage sets for fonts
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*
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* Copyright (C) 2000 Red Hat Software
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __PANGO_COVERAGE_H__
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#define __PANGO_COVERAGE_H__
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#include <glib-object.h>
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#include <pango/pango-version-macros.h>
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#include <hb.h>
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G_BEGIN_DECLS
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/**
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* PangoCoverage:
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*
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* A `PangoCoverage` structure is a map from Unicode characters
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* to [enum@Pango.CoverageLevel] values.
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*
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* It is often necessary in Pango to determine if a particular
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* font can represent a particular character, and also how well
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* it can represent that character. The `PangoCoverage` is a data
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* structure that is used to represent that information. It is an
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* opaque structure with no public fields.
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*/
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typedef struct _PangoCoverage PangoCoverage;
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/**
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* PangoCoverageLevel:
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* @PANGO_COVERAGE_NONE: The character is not representable with
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* the font.
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* @PANGO_COVERAGE_FALLBACK: The character is represented in a
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* way that may be comprehensible but is not the correct
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* graphical form. For instance, a Hangul character represented
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* as a a sequence of Jamos, or a Latin transliteration of a
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* Cyrillic word.
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* @PANGO_COVERAGE_APPROXIMATE: The character is represented as
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* basically the correct graphical form, but with a stylistic
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* variant inappropriate for the current script.
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* @PANGO_COVERAGE_EXACT: The character is represented as the
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* correct graphical form.
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*
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* `PangoCoverageLevel` is used to indicate how well a font can
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* represent a particular Unicode character for a particular script.
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*
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* Since 1.44, only %PANGO_COVERAGE_NONE and %PANGO_COVERAGE_EXACT
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* will be returned.
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*/
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typedef enum {
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PANGO_COVERAGE_NONE,
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PANGO_COVERAGE_FALLBACK,
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PANGO_COVERAGE_APPROXIMATE,
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PANGO_COVERAGE_EXACT
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} PangoCoverageLevel;
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PANGO_AVAILABLE_IN_ALL
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GType pango_coverage_get_type (void) G_GNUC_CONST;
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PANGO_AVAILABLE_IN_ALL
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PangoCoverage * pango_coverage_new (void);
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PANGO_DEPRECATED_IN_1_52_FOR(g_object_ref)
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PangoCoverage * pango_coverage_ref (PangoCoverage *coverage);
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PANGO_DEPRECATED_IN_1_52_FOR(g_object_unref)
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void pango_coverage_unref (PangoCoverage *coverage);
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PANGO_AVAILABLE_IN_ALL
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PangoCoverage * pango_coverage_copy (PangoCoverage *coverage);
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PANGO_AVAILABLE_IN_ALL
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PangoCoverageLevel pango_coverage_get (PangoCoverage *coverage,
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int index_);
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PANGO_AVAILABLE_IN_ALL
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void pango_coverage_set (PangoCoverage *coverage,
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int index_,
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PangoCoverageLevel level);
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PANGO_DEPRECATED_IN_1_44
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void pango_coverage_max (PangoCoverage *coverage,
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PangoCoverage *other);
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PANGO_DEPRECATED_IN_1_44
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void pango_coverage_to_bytes (PangoCoverage *coverage,
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guchar **bytes,
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int *n_bytes);
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PANGO_DEPRECATED_IN_1_44
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PangoCoverage *pango_coverage_from_bytes (guchar *bytes,
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int n_bytes);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(PangoCoverage, g_object_unref)
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G_END_DECLS
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#endif /* __PANGO_COVERAGE_H__ */
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