/usr/include/tesseract/fpchop.h is in libtesseract-dev 3.02.01-6.
This file is owned by root:root, with mode 0o644.
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* 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"
#include "notdll.h"
#include "notdll.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
);
inT16 next_anti_left_seg( //chop the outline
C_OUTLINE *srcline, //source outline
inT16 tail_index, //of tailpos
inT16 startindex, //end of search
inT32 length, //of outline
inT16 chop_coord, //place to chop
float pitch_error, //allowed deviation
ICOORD *tail_pos //current position
);
inT16 next_anti_right_seg( //chop the outline
C_OUTLINE *srcline, //source outline
inT16 tail_index, //of tailpos
inT16 startindex, //end of search
inT32 length, //of outline
inT16 chop_coord, //place to chop
float pitch_error, //allowed deviation
ICOORD *tail_pos //current position
);
inT16 next_clock_left_seg( //chop the outline
C_OUTLINE *srcline, //source outline
inT16 tail_index, //of tailpos
inT16 startindex, //end of search
inT32 length, //of outline
inT16 chop_coord, //place to chop
float pitch_error, //allowed deviation
ICOORD *tail_pos //current position
);
inT16 next_clock_right_seg( //chop the outline
C_OUTLINE *srcline, //source outline
inT16 tail_index, //of tailpos
inT16 startindex, //end of search
inT32 length, //of outline
inT16 chop_coord, //place to chop
float pitch_error, //allowed deviation
ICOORD *tail_pos //current position
);
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
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