122 lines
3.0 KiB
C
122 lines
3.0 KiB
C
/*
|
|
* Copyright (C) 2007,2008,2009 Red Hat, Inc.
|
|
*
|
|
* This is part of HarfBuzz, an OpenType Layout engine library.
|
|
*
|
|
* Permission is hereby granted, without written agreement and without
|
|
* license or royalty fees, to use, copy, modify, and distribute this
|
|
* software and its documentation for any purpose, provided that the
|
|
* above copyright notice and the following two paragraphs appear in
|
|
* all copies of this software.
|
|
*
|
|
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
|
|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
|
|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
|
* DAMAGE.
|
|
*
|
|
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
|
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
|
|
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
|
|
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
|
|
*
|
|
* Red Hat Author(s): Behdad Esfahbod
|
|
*/
|
|
|
|
#ifndef HB_OT_LAYOUT_PRIVATE_H
|
|
#define HB_OT_LAYOUT_PRIVATE_H
|
|
|
|
#include "hb-private.h"
|
|
|
|
#include "hb-ot-layout.h"
|
|
|
|
#include "hb-font.h"
|
|
#include "hb-buffer-private.h"
|
|
|
|
|
|
HB_BEGIN_DECLS
|
|
|
|
typedef unsigned int hb_ot_layout_class_t;
|
|
|
|
/*
|
|
* hb_ot_layout_t
|
|
*/
|
|
|
|
typedef struct _hb_ot_layout_t hb_ot_layout_t;
|
|
|
|
struct _hb_ot_layout_t
|
|
{
|
|
hb_blob_t *gdef_blob;
|
|
hb_blob_t *gsub_blob;
|
|
hb_blob_t *gpos_blob;
|
|
|
|
const struct GDEF *gdef;
|
|
const struct GSUB *gsub;
|
|
const struct GPOS *gpos;
|
|
|
|
struct
|
|
{
|
|
unsigned char *klasses;
|
|
unsigned int len;
|
|
} new_gdef;
|
|
};
|
|
|
|
typedef struct _hb_ot_layout_context_t hb_ot_layout_context_t;
|
|
struct _hb_ot_layout_context_t
|
|
{
|
|
hb_face_t *face;
|
|
hb_font_t *font;
|
|
|
|
union info_t
|
|
{
|
|
struct gpos_t
|
|
{
|
|
unsigned int last; /* the last valid glyph--used with cursive positioning */
|
|
hb_position_t anchor_x; /* the coordinates of the anchor point */
|
|
hb_position_t anchor_y; /* of the last valid glyph */
|
|
} gpos;
|
|
} info;
|
|
};
|
|
|
|
|
|
void
|
|
_hb_ot_layout_init (hb_face_t *face);
|
|
|
|
void
|
|
_hb_ot_layout_fini (hb_face_t *face);
|
|
|
|
|
|
/*
|
|
* GDEF
|
|
*/
|
|
|
|
HB_INTERNAL hb_bool_t
|
|
_hb_ot_layout_has_new_glyph_classes (hb_face_t *face);
|
|
|
|
HB_INTERNAL void
|
|
_hb_ot_layout_set_glyph_property (hb_face_t *face,
|
|
hb_codepoint_t glyph,
|
|
unsigned int property);
|
|
|
|
HB_INTERNAL void
|
|
_hb_ot_layout_set_glyph_class (hb_face_t *face,
|
|
hb_codepoint_t glyph,
|
|
hb_ot_layout_glyph_class_t klass);
|
|
|
|
HB_INTERNAL hb_bool_t
|
|
_hb_ot_layout_check_glyph_property (hb_face_t *face,
|
|
hb_internal_glyph_info_t *ginfo,
|
|
unsigned int lookup_flags,
|
|
unsigned int *property);
|
|
|
|
HB_INTERNAL hb_bool_t
|
|
_hb_ot_layout_skip_mark (hb_face_t *face,
|
|
hb_internal_glyph_info_t *ginfo,
|
|
unsigned int lookup_flags,
|
|
unsigned int *property);
|
|
|
|
HB_END_DECLS
|
|
|
|
#endif /* HB_OT_LAYOUT_PRIVATE_H */
|