/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * Pango
 * pango-glyph.h:
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Pango Library (www.pango.org).
 *
 * The Initial Developer of the Original Code is
 * Red Hat Software.
 * Portions created by the Initial Developer are Copyright (C) 2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
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 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef __PANGO_GLYPH_H__
#define __PANGO_GLYPH_H__

#include "pango-types.h"

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

typedef struct _PangoliteGlyphInfo PangoliteGlyphInfo;
typedef struct _PangoliteGlyphString PangoliteGlyphString;

/* 1000ths of a device unit */
typedef gint32 PangoliteGlyphUnit;


/* A single glyph 
 */
struct _PangoliteGlyphInfo
{
  PangoliteGlyph glyph;
  gint           is_cluster_start;
};

/* A string of glyphs with positional information and visual attributes -
 * ready for drawing
 */
struct _PangoliteGlyphString {
  gint num_glyphs;

  PangoliteGlyphInfo *glyphs;

  /* This is a memory inefficient way of representing the information
   * here - each value gives the byte index within the text
   * corresponding to the glyph string of the start of the cluster to
   * which the glyph belongs.
   */
  gint *log_clusters;

  /*< private >*/
  gint space;
};

PangoliteGlyphString *pangolite_glyph_string_new(void);
void pangolite_glyph_string_set_size(PangoliteGlyphString *string, gint new_len);
void pangolite_glyph_string_free(PangoliteGlyphString *string);



/* Turn a string of characters into a string of glyphs */
void pangolite_shape(const gunichar2  *text,
                 gint             length,
                 PangoliteAnalysis    *analysis,
                 PangoliteGlyphString *glyphs);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* __PANGO_GLYPH_H__ */