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| author | Ingo Schwarze <schwarze@openbsd.org> | 2019-01-04 03:21:02 +0000 |
|---|---|---|
| committer | Ingo Schwarze <schwarze@openbsd.org> | 2019-01-04 03:21:02 +0000 |
| commit | 246a96d69c628a5c6aa18bf731dddc2c8723a518 (patch) | |
| tree | d2d330998930b31c1e79461479d4d5def0153f59 | |
| parent | fef738d3d7e452c2c278c16a710c696968d41718 (diff) | |
| download | mandoc-246a96d69c628a5c6aa18bf731dddc2c8723a518.tar.gz | |
Implement centering and adjustment to the right margin directly in
the terminal filling routine, controlled by new flags TERMP_CENTER
and TERMP_RIGHT.
This became possible by the recent term_flushln() rewrite.
No functional change yet, but to be used by upcoming commits.
| -rw-r--r-- | term.c | 16 | ||||
| -rw-r--r-- | term.h | 4 |
2 files changed, 18 insertions, 2 deletions
@@ -135,13 +135,27 @@ term_flushln(struct termp *p) /* * Figure out how much text will fit in the field. * If there is whitespace only, print nothing. - * Otherwise, print the field content. */ term_fill(p, &nbr, &vbr, vtarget); if (nbr == 0) break; + /* + * With the CENTER or RIGHT flag, increase the indentation + * to center the text between the left and right margins + * or to adjust it to the right margin, respectively. + */ + + if (vbr < vtarget) { + if (p->flags & TERMP_CENTER) + vbl += (vtarget - vbr) / 2; + else if (p->flags & TERMP_RIGHT) + vbl += vtarget - vbr; + } + + /* Finally, print the field content. */ + term_field(p, vbl, nbr, vbr, vtarget); /* @@ -1,7 +1,7 @@ /* $Id$ */ /* * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> - * Copyright (c) 2011-2015, 2017 Ingo Schwarze <schwarze@openbsd.org> + * Copyright (c) 2011-2015, 2017, 2019 Ingo Schwarze <schwarze@openbsd.org> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -99,6 +99,8 @@ struct termp { #define TERMP_NEWMC (1 << 18) /* No .mc printed yet. */ #define TERMP_ENDMC (1 << 19) /* Next break ends .mc mode. */ #define TERMP_MULTICOL (1 << 20) /* Multiple column mode. */ +#define TERMP_CENTER (1 << 21) /* Center output lines. */ +#define TERMP_RIGHT (1 << 22) /* Adjust to the right margin. */ enum termtype type; /* Terminal, PS, or PDF. */ enum termenc enc; /* Type of encoding. */ enum termfont fontl; /* Last font set. */ |