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
|
#ifndef MUPDF_FITZ_TEXT_H
#define MUPDF_FITZ_TEXT_H
#include "mupdf/fitz/system.h"
#include "mupdf/fitz/context.h"
#include "mupdf/fitz/font.h"
#include "mupdf/fitz/path.h"
/*
* Text buffer.
*
* The trm field contains the a, b, c and d coefficients.
* The e and f coefficients come from the individual elements,
* together they form the transform matrix for the glyph.
*
* Glyphs are referenced by glyph ID.
* The Unicode text equivalent is kept in a separate array
* with indexes into the glyph array.
*/
typedef struct fz_text_s fz_text;
typedef struct fz_text_span_s fz_text_span;
typedef struct fz_text_item_s fz_text_item;
struct fz_text_item_s
{
float x, y;
int gid; /* -1 for one gid to many ucs mappings */
int ucs; /* -1 for one ucs to many gid mappings */
};
typedef enum fz_text_direction_e
{
/* There are various possible 'directions' for text */
FZ_DIR_UNSET = 0, /* Unset (or Neutral). All PDF text is sent as this. */
FZ_DIR_R2L = 1, /* Text is r2l */
FZ_DIR_L2R = 2 /* Text is l2r */
} fz_text_direction;
typedef enum fz_text_language_e
{
fz_lang_unset = 0
/* FIXME: Fill in more */
} fz_text_language;
struct fz_text_span_s
{
fz_font *font;
fz_matrix trm;
int wmode : 1; /* 0 horizontal, 1 vertical */
int bidi_level : 7; /* The bidirectional level of text */
int markup_dir : 2; /* The direction of text as marked in the original document */
int language : 8; /* The language as marked in the original document */
int len, cap;
fz_text_item *items;
fz_text_span *next;
};
struct fz_text_s
{
int refs;
fz_text_span *head, *tail;
};
fz_text *fz_new_text(fz_context *ctx);
fz_text *fz_keep_text(fz_context *ctx, const fz_text *text);
void fz_drop_text(fz_context *ctx, const fz_text *text);
void fz_show_glyph(fz_context *ctx, fz_text *text, fz_font *font, const fz_matrix *trm, int glyph, int unicode, int wmode, int bidi_level, fz_text_direction markup_dir, fz_text_language language);
void fz_show_string(fz_context *ctx, fz_text *text, fz_font *font, fz_matrix *trm, const char *s, int wmode, int bidi_level, fz_text_direction markup_dir, fz_text_language language);
fz_rect *fz_bound_text(fz_context *ctx, const fz_text *text, const fz_stroke_state *stroke, const fz_matrix *ctm, fz_rect *r);
fz_text *fz_clone_text(fz_context *ctx, const fz_text *text);
#endif
|
