diff options
| author | nicm <nicm> | 2021-02-05 12:29:18 +0000 |
|---|---|---|
| committer | nicm <nicm> | 2021-02-05 12:29:18 +0000 |
| commit | 3dddc11603b1bd66b5586b47795716e87921a096 (patch) | |
| tree | 52a11e2f6c59655ccdb575ffd5ed4ab72d9b97fd /screen-redraw.c | |
| parent | be471c328ea0ae04026e4ff32fda7b7f11c74255 (diff) | |
Send Unicode directional isolate characters around horizontal pane
borders if the terminal support UTF-8 and an extension terminfo(5)
capability "Bidi" is present. On terminals with BiDi support (ie, VTE)
this seems to be enough to display right-to-left text acceptably enough
to be usable (with some caveats about the mouse position). Requested by
and with help from Mahmoud Elagdar in GitHub issue 2425.
Diffstat (limited to 'screen-redraw.c')
| -rw-r--r-- | screen-redraw.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/screen-redraw.c b/screen-redraw.c index 47c1a838..6ddabc52 100644 --- a/screen-redraw.c +++ b/screen-redraw.c @@ -32,8 +32,8 @@ static void screen_redraw_set_context(struct client *, struct screen_redraw_ctx *); #define CELL_INSIDE 0 -#define CELL_LEFTRIGHT 1 -#define CELL_TOPBOTTOM 2 +#define CELL_TOPBOTTOM 1 +#define CELL_LEFTRIGHT 2 #define CELL_TOPLEFT 3 #define CELL_TOPRIGHT 4 #define CELL_BOTTOMLEFT 5 @@ -47,6 +47,9 @@ static void screen_redraw_set_context(struct client *, #define CELL_BORDERS " xqlkmjwvtun~" +#define START_ISOLATE "\342\201\246" +#define END_ISOLATE "\342\201\251" + static const struct utf8_data screen_redraw_double_borders[] = { { "", 0, 0, 0 }, { "\342\225\221", 0, 3, 1 }, /* U+2551 */ @@ -299,7 +302,7 @@ screen_redraw_type_of_cell(struct client *c, u_int px, u_int py, case 13: /* 1101, left right bottom */ return (CELL_TOPJOIN); case 12: /* 1100, left right */ - return (CELL_TOPBOTTOM); + return (CELL_LEFTRIGHT); case 11: /* 1011, left top bottom */ return (CELL_RIGHTJOIN); case 10: /* 1010, left top */ @@ -313,7 +316,7 @@ screen_redraw_type_of_cell(struct client *c, u_int px, u_int py, case 5: /* 0101, right bottom */ return (CELL_TOPLEFT); case 3: /* 0011, top bottom */ - return (CELL_LEFTRIGHT); + return (CELL_TOPBOTTOM); } return (CELL_OUTSIDE); } @@ -680,7 +683,7 @@ screen_redraw_draw_borders_cell(struct screen_redraw_ctx *ctx, u_int i, u_int j) struct tty *tty = &c->tty; struct window_pane *wp; u_int cell_type, x = ctx->ox + i, y = ctx->oy + j; - int pane_status = ctx->pane_status; + int pane_status = ctx->pane_status, isolates; struct grid_cell gc; const struct grid_cell *tmp; @@ -705,11 +708,22 @@ screen_redraw_draw_borders_cell(struct screen_redraw_ctx *ctx, u_int i, u_int j) } screen_redraw_border_set(wp, ctx->pane_lines, cell_type, &gc); + if (cell_type == CELL_TOPBOTTOM && + (c->flags & CLIENT_UTF8) && + tty_term_has(tty->term, TTYC_BIDI)) + isolates = 1; + else + isolates = 0; + if (ctx->statustop) tty_cursor(tty, i, ctx->statuslines + j); else tty_cursor(tty, i, j); + if (isolates) + tty_puts(tty, END_ISOLATE); tty_cell(tty, &gc, &grid_default_cell, NULL); + if (isolates) + tty_puts(tty, START_ISOLATE); } /* Draw the borders. */ |