forked from tesseract-ocr/tesseract
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathfpchop.h
132 lines (125 loc) · 6.21 KB
/
fpchop.h
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
/**********************************************************************
* File: fpchop.h (Formerly fp_chop.h)
* Description: Code to chop fixed pitch text into character cells.
* Author: Ray Smith
* Created: Thu Sep 16 11:14:15 BST 1993
*
* (C) Copyright 1993, Hewlett-Packard Ltd.
** Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*
**********************************************************************/
#ifndef FPCHOP_H
#define FPCHOP_H
#include "params.h"
#include "blobbox.h"
class C_OUTLINE_FRAG:public ELIST_LINK
{
public:
C_OUTLINE_FRAG() { //empty constructor
steps = NULL;
stepcount = 0;
}
~C_OUTLINE_FRAG () {
if (steps != NULL)
delete [] steps;
}
//start coord
C_OUTLINE_FRAG(ICOORD start_pt,
ICOORD end_pt, //end coord
C_OUTLINE *outline, //source of steps
inT16 start_index,
inT16 end_index);
//other end
C_OUTLINE_FRAG(C_OUTLINE_FRAG *head, inT16 tail_y);
C_OUTLINE *close(); //copy to outline
C_OUTLINE_FRAG & operator= ( //assign
const C_OUTLINE_FRAG & src);
ICOORD start; //start coord
ICOORD end; //end coord
DIR128 *steps; //step array
inT32 stepcount; //no of steps
C_OUTLINE_FRAG *other_end; //head if a tail
inT16 ycoord; //coord of cut pt
private:
};
ELISTIZEH(C_OUTLINE_FRAG)
extern
INT_VAR_H (textord_fp_chop_error, 2,
"Max allowed bending of chop cells");
extern
double_VAR_H (textord_fp_chop_snap, 0.5,
"Max distance of chop pt from vertex");
ROW *fixed_pitch_words( //find lines
TO_ROW *row, //row to do
FCOORD rotation //for drawing
);
WERD *add_repeated_word( //move repeated word
WERD_IT *rep_it, //repeated words
inT16 &rep_left, //left edge of word
inT16 &prev_chop_coord, //previous word end
uinT8 &blanks, //no of blanks
float pitch, //char cell size
WERD_IT *word_it //list of words
);
void split_to_blob( //split the blob
BLOBNBOX *blob, //blob to split
inT16 chop_coord, //place to chop
float pitch_error, //allowed deviation
C_OUTLINE_LIST *left_coutlines, //for cblobs
C_OUTLINE_LIST *right_coutlines);
void fixed_chop_cblob( //split the blob
C_BLOB *blob, //blob to split
inT16 chop_coord, //place to chop
float pitch_error, //allowed deviation
C_OUTLINE_LIST *left_outlines, //left half of chop
C_OUTLINE_LIST *right_outlines //right half of chop
);
void fixed_split_coutline( //chop the outline
C_OUTLINE *srcline, //source outline
inT16 chop_coord, //place to chop
float pitch_error, //allowed deviation
C_OUTLINE_IT *left_it, //left half of chop
C_OUTLINE_IT *right_it //right half of chop
);
BOOL8 fixed_chop_coutline( //chop the outline
C_OUTLINE *srcline, //source outline
inT16 chop_coord, //place to chop
float pitch_error, //allowed deviation
C_OUTLINE_FRAG_LIST *left_frags, //left half of chop
C_OUTLINE_FRAG_LIST *right_frags //right half of chop
);
void save_chop_cfragment( //chop the outline
inT16 head_index, //head of fragment
ICOORD head_pos, //head of fragment
inT16 tail_index, //tail of fragment
ICOORD tail_pos, //tail of fragment
C_OUTLINE *srcline, //source of edgesteps
C_OUTLINE_FRAG_LIST *frags //fragment list
);
void add_frag_to_list( //ordered add
C_OUTLINE_FRAG *frag, //fragment to add
C_OUTLINE_FRAG_LIST *frags //fragment list
);
void close_chopped_cfragments( //chop the outline
C_OUTLINE_FRAG_LIST *frags, //list to clear
C_OUTLINE_LIST *children, //potential children
float pitch_error, //allowed shrinkage
C_OUTLINE_IT *dest_it //output list
);
C_OUTLINE *join_chopped_fragments( //join pieces
C_OUTLINE_FRAG *bottom, //bottom of cut
C_OUTLINE_FRAG *top //top of cut
);
void join_segments( //join pieces
C_OUTLINE_FRAG *bottom, //bottom of cut
C_OUTLINE_FRAG *top //top of cut
);
#endif