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underlin.h
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1 /**********************************************************************
2 * File: underlin.h (Formerly undrline.h)
3 * Description: Code to chop blobs apart from underlines.
4 * Author: Ray Smith
5 * Created: Mon Aug 8 11:14:00 BST 1994
6 *
7 * (C) Copyright 1994, Hewlett-Packard Ltd.
8 ** Licensed under the Apache License, Version 2.0 (the "License");
9 ** you may not use this file except in compliance with the License.
10 ** You may obtain a copy of the License at
11 ** http://www.apache.org/licenses/LICENSE-2.0
12 ** Unless required by applicable law or agreed to in writing, software
13 ** distributed under the License is distributed on an "AS IS" BASIS,
14 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 ** See the License for the specific language governing permissions and
16 ** limitations under the License.
17 *
18 **********************************************************************/
19
20 #ifndef UNDERLIN_H
21 #define UNDERLIN_H
22
23 #include "fpchop.h"
24 #include "notdll.h"
25
26 extern double_VAR_H (textord_underline_offset, 0.1,
27 "Fraction of x to ignore");
28 extern BOOL_VAR_H (textord_restore_underlines, FALSE,
29 "Chop underlines & put back");
30 void restore_underlined_blobs( //get chop points
31 TO_BLOCK *block //block to do
32 );
33 TO_ROW *most_overlapping_row( //find best row
34 TO_ROW_LIST *rows, //list of rows
35 BLOBNBOX *blob //blob to place
36 );
37 void find_underlined_blobs( //get chop points
38 BLOBNBOX *u_line, //underlined unit
39 QSPLINE *baseline, //actual baseline
40 float xheight, //height of line
41 float baseline_offset, //amount to shrinke it
42 ICOORDELT_LIST *chop_cells //places to chop
43 );
44 void vertical_cunderline_projection( //project outlines
45 C_OUTLINE *outline, //outline to project
46 QSPLINE *baseline, //actual baseline
47 float xheight, //height of line
48 float baseline_offset, //amount to shrinke it
49 STATS *lower_proj, //below baseline
50 STATS *middle_proj, //centre region
51 STATS *upper_proj //top region
52 );
53 #endif