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
|
/*
* Copyright 2021 Red Hat, Inc.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <pango/pango-item.h>
#include <pango/pango-break.h>
/*< private >
* Pango2Analysis:
* @size_font: font to use for determining line height
* @font: the font for this segment
* @level: the bidirectional level for this segment.
* @gravity: the glyph orientation for this segment (A `Pango2Gravity`).
* @flags: boolean flags for this segment
* @script: the detected script for this segment (A `Pango2Script`)
* @language: the detected language for this segment.
* @extra_attrs: extra attributes for this segment.
*
* The `Pango2Analysis` structure stores information about
* the properties of a segment of text.
*/
struct _Pango2Analysis
{
Pango2Font *size_font;
Pango2Font *font;
guint8 level;
guint8 gravity;
guint8 flags;
guint8 script;
Pango2Language *language;
GSList *extra_attrs;
};
/*< private>
* Pango2Item:
* @offset: byte offset of the start of this item in text.
* @length: length of this item in bytes.
* @num_chars: number of Unicode characters in the item.
* @char_offset: character offset of the start of this item in text. Since 1.50
* @analysis: analysis results for the item.
*
* The `Pango2Item` structure stores information about a segment of text.
*
* You typically obtain `Pango2Items` by itemizing a piece of text
* with [func@itemize].
*/
struct _Pango2Item
{
int offset;
int length;
int num_chars;
int char_offset;
Pango2Analysis analysis;
};
void pango2_analysis_collect_features (const Pango2Analysis *analysis,
hb_feature_t *features,
guint length,
guint *num_features);
void pango2_analysis_set_size_font (Pango2Analysis *analysis,
Pango2Font *font);
Pango2Font * pango2_analysis_get_size_font (const Pango2Analysis *analysis);
GList * pango2_itemize_with_font (Pango2Context *context,
Pango2Direction base_dir,
const char *text,
int start_index,
int length,
Pango2AttrList *attrs,
Pango2AttrIterator *cached_iter,
const Pango2FontDescription *desc);
GList * pango2_itemize_post_process_items (Pango2Context *context,
const char *text,
Pango2LogAttr *log_attrs,
GList *items);
Pango2Item * pango2_item_new (void);
Pango2Item * pango2_item_split (Pango2Item *orig,
int split_index,
int split_offset);
void pango2_item_unsplit (Pango2Item *orig,
int split_index,
int split_offset);
void pango2_item_apply_attrs (Pango2Item *item,
Pango2AttrIterator *iter);
typedef struct _ItemProperties ItemProperties;
struct _ItemProperties
{
Pango2LineStyle uline_style;
Pango2UnderlinePosition uline_position;
Pango2LineStyle strikethrough_style;
Pango2LineStyle oline_style;
guint oline_single : 1;
guint showing_space : 1;
guint no_paragraph_break : 1;
int letter_spacing;
int line_spacing;
int absolute_line_height;
double line_height;
Pango2Attribute *shape;
};
void pango2_item_get_properties (Pango2Item *item,
ItemProperties *properties);
|
