/usr/include/pango-1.0/pango/pango-glyph-item.h is in libpango1.0-dev 1.38.1-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 | /* Pango
* pango-glyph-item.h: Pair of PangoItem and a glyph string
*
* Copyright (C) 2002 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_GLYPH_ITEM_H__
#define __PANGO_GLYPH_ITEM_H__
#include <pango/pango-attributes.h>
#include <pango/pango-break.h>
#include <pango/pango-item.h>
#include <pango/pango-glyph.h>
G_BEGIN_DECLS
/**
* PangoGlyphItem:
* @item: corresponding #PangoItem.
* @glyphs: corresponding #PangoGlyphString.
*
* A #PangoGlyphItem is a pair of a #PangoItem and the glyphs
* resulting from shaping the text corresponding to an item.
* As an example of the usage of #PangoGlyphItem, the results
* of shaping text with #PangoLayout is a list of #PangoLayoutLine,
* each of which contains a list of #PangoGlyphItem.
*/
typedef struct _PangoGlyphItem PangoGlyphItem;
struct _PangoGlyphItem
{
PangoItem *item;
PangoGlyphString *glyphs;
};
/**
* PANGO_TYPE_GLYPH_ITEM:
*
* The #GObject type for #PangoGlyphItem.
*/
#define PANGO_TYPE_GLYPH_ITEM (pango_glyph_item_get_type ())
GType pango_glyph_item_get_type (void) G_GNUC_CONST;
PangoGlyphItem *pango_glyph_item_split (PangoGlyphItem *orig,
const char *text,
int split_index);
PangoGlyphItem *pango_glyph_item_copy (PangoGlyphItem *orig);
void pango_glyph_item_free (PangoGlyphItem *glyph_item);
GSList * pango_glyph_item_apply_attrs (PangoGlyphItem *glyph_item,
const char *text,
PangoAttrList *list);
void pango_glyph_item_letter_space (PangoGlyphItem *glyph_item,
const char *text,
PangoLogAttr *log_attrs,
int letter_spacing);
void pango_glyph_item_get_logical_widths (PangoGlyphItem *glyph_item,
const char *text,
int *logical_widths);
/**
* PangoGlyphItemIter:
*
* A #PangoGlyphItemIter is an iterator over the clusters in a
* #PangoGlyphItem. The <firstterm>forward direction</firstterm> of the
* iterator is the logical direction of text. That is, with increasing
* @start_index and @start_char values. If @glyph_item is right-to-left
* (that is, if <literal>@glyph_item->item->analysis.level</literal> is odd),
* then @start_glyph decreases as the iterator moves forward. Moreover,
* in right-to-left cases, @start_glyph is greater than @end_glyph.
*
* An iterator should be initialized using either of
* pango_glyph_item_iter_init_start() and
* pango_glyph_item_iter_init_end(), for forward and backward iteration
* respectively, and walked over using any desired mixture of
* pango_glyph_item_iter_next_cluster() and
* pango_glyph_item_iter_prev_cluster(). A common idiom for doing a
* forward iteration over the clusters is:
* <programlisting>
* PangoGlyphItemIter cluster_iter;
* gboolean have_cluster;
*
* for (have_cluster = pango_glyph_item_iter_init_start (&cluster_iter,
* glyph_item, text);
* have_cluster;
* have_cluster = pango_glyph_item_iter_next_cluster (&cluster_iter))
* {
* ...
* }
* </programlisting>
*
* Note that @text is the start of the text for layout, which is then
* indexed by <literal>@glyph_item->item->offset</literal> to get to the
* text of @glyph_item. The @start_index and @end_index values can directly
* index into @text. The @start_glyph, @end_glyph, @start_char, and @end_char
* values however are zero-based for the @glyph_item. For each cluster, the
* item pointed at by the start variables is included in the cluster while
* the one pointed at by end variables is not.
*
* None of the members of a #PangoGlyphItemIter should be modified manually.
*
* Since: 1.22
*/
typedef struct _PangoGlyphItemIter PangoGlyphItemIter;
struct _PangoGlyphItemIter
{
PangoGlyphItem *glyph_item;
const gchar *text;
int start_glyph;
int start_index;
int start_char;
int end_glyph;
int end_index;
int end_char;
};
/**
* PANGO_TYPE_GLYPH_ITEM_ITER:
*
* The #GObject type for #PangoGlyphItemIter.
*
* Since: 1.22
*/
#define PANGO_TYPE_GLYPH_ITEM_ITER (pango_glyph_item_iter_get_type ())
GType pango_glyph_item_iter_get_type (void) G_GNUC_CONST;
PangoGlyphItemIter *pango_glyph_item_iter_copy (PangoGlyphItemIter *orig);
void pango_glyph_item_iter_free (PangoGlyphItemIter *iter);
gboolean pango_glyph_item_iter_init_start (PangoGlyphItemIter *iter,
PangoGlyphItem *glyph_item,
const char *text);
gboolean pango_glyph_item_iter_init_end (PangoGlyphItemIter *iter,
PangoGlyphItem *glyph_item,
const char *text);
gboolean pango_glyph_item_iter_next_cluster (PangoGlyphItemIter *iter);
gboolean pango_glyph_item_iter_prev_cluster (PangoGlyphItemIter *iter);
G_END_DECLS
#endif /* __PANGO_GLYPH_ITEM_H__ */
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