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comparison mupdf-source/thirdparty/tesseract/src/textord/underlin.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /**********************************************************************
2 * File: underlin.h (Formerly undrline.h)
3 * Description: Code to chop blobs apart from underlines.
4 * Author: Ray Smith
5 *
6 * (C) Copyright 1994, Hewlett-Packard Ltd.
7 ** Licensed under the Apache License, Version 2.0 (the "License");
8 ** you may not use this file except in compliance with the License.
9 ** You may obtain a copy of the License at
10 ** http://www.apache.org/licenses/LICENSE-2.0
11 ** Unless required by applicable law or agreed to in writing, software
12 ** distributed under the License is distributed on an "AS IS" BASIS,
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
16 *
17 **********************************************************************/
18
19 #ifndef UNDERLIN_H
20 #define UNDERLIN_H
21
22 #include "fpchop.h"
23
24 namespace tesseract {
25
26 extern double_VAR_H(textord_underline_offset);
27 extern BOOL_VAR_H(textord_restore_underlines);
28 void restore_underlined_blobs( // get chop points
29 TO_BLOCK *block // block to do
30 );
31 TO_ROW *most_overlapping_row( // find best row
32 TO_ROW_LIST *rows, // list of rows
33 BLOBNBOX *blob // blob to place
34 );
35 void find_underlined_blobs( // get chop points
36 BLOBNBOX *u_line, // underlined unit
37 QSPLINE *baseline, // actual baseline
38 float xheight, // height of line
39 float baseline_offset, // amount to shrinke it
40 ICOORDELT_LIST *chop_cells // places to chop
41 );
42 void vertical_cunderline_projection( // project outlines
43 C_OUTLINE *outline, // outline to project
44 QSPLINE *baseline, // actual baseline
45 float xheight, // height of line
46 float baseline_offset, // amount to shrinke it
47 STATS *lower_proj, // below baseline
48 STATS *middle_proj, // centre region
49 STATS *upper_proj // top region
50 );
51
52 } // namespace tesseract
53
54 #endif