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top: allow setting variable width col scroll (1 vs. 8)

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The Inspection feature already offered an INSP_SLIDE_1
provision. This patch now offers similar extensions to
variable width column scrolling (assuming SCROLLVAR_NO
isn't defined). Such a provision was useful during the
development of some recent library UTF-8 enhancements.

Reference(s):
. 12/30/20, newlib branch equivalent commit
commit edce9ed612

Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner 2022-01-13 13:13:13 -06:00 committed by Craig Small
parent 401d587d2d
commit 5ae84fac6e
1 changed files with 5 additions and 0 deletions
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top/top.h
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@ -54,6 +54,7 @@
//#define RECALL_FIXED /* don't reorder saved strings if recalled */
//#define RMAN_IGNORED /* don't consider auto right margin glitch */
//#define SCROLLVAR_NO /* disable intra-column horizontal scroll */
//#define SCROLLV_BY_1 /* when scrolling left/right don't move 8 */
//#define STRINGCASENO /* case insenstive compare/locate versions */
//#define TERMIOS_ONLY /* just limp along with native input only */
//#define TOG4_NOFORCE /* no force 2 abreast mode with '4' toggle */
@ -482,7 +483,11 @@ typedef struct WIN_t {
(3 == w->maxpflgs && EU_XON == w->procflgs[0] && VARcol(w->procflgs[1])))
#endif
#define VARleft(w) (w->varcolbeg && VARright(w))
#ifdef SCROLLV_BY_1
#define SCROLLAMT 1
#else
#define SCROLLAMT 8
#endif
#endif
// Support for a proper (visible) row #1 whenever Curwin changes