diff options
| author | Thorsten Lockert <tholo@cvs.openbsd.org> | 1996-06-25 18:32:04 +0000 |
|---|---|---|
| committer | Thorsten Lockert <tholo@cvs.openbsd.org> | 1996-06-25 18:32:04 +0000 |
| commit | 061e58ab0cf6bd729c78ce52ee084500723dfad9 (patch) | |
| tree | 235dc030686292c7bf0cf84a9cc19c3dc30ca81e /sys/arch/i386/isa | |
| parent | 70b82770c25ea86255036b261459576d56e6d43a (diff) | |
Implement save/restore cursor position; new curses uses it
Diffstat (limited to 'sys/arch/i386/isa')
| -rw-r--r-- | sys/arch/i386/isa/pccons.c | 58 |
1 files changed, 43 insertions, 15 deletions
diff --git a/sys/arch/i386/isa/pccons.c b/sys/arch/i386/isa/pccons.c index f56bc62bdf4..daf071830fe 100644 --- a/sys/arch/i386/isa/pccons.c +++ b/sys/arch/i386/isa/pccons.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pccons.c,v 1.18 1996/06/16 13:41:34 deraadt Exp $ */ +/* $OpenBSD: pccons.c,v 1.19 1996/06/25 18:32:03 tholo Exp $ */ /* $NetBSD: pccons.c,v 1.99.4.1 1996/06/04 20:03:53 cgd Exp $ */ /*- @@ -103,6 +103,7 @@ static struct video_state { int cx, cy; /* escape parameters */ int row, col; /* current cursor position */ int nrow, ncol, nchr; /* current screen geometry */ + int offset; /* Saved cursor pos */ u_char state; /* parser state */ #define VSS_ESCAPE 1 #define VSS_EBRACE 2 @@ -1028,6 +1029,10 @@ sput(cp, n) } else vs.state = VSS_ESCAPE; break; + case 0x9B: /* CSI */ + vs.cx = vs.cy = 0; + vs.state = VSS_EBRACE; + break; case '\t': { int inccol = 8 - (vs.col & 7); @@ -1041,7 +1046,7 @@ sput(cp, n) } break; - case '\010': + case '\b': if (crtat <= Crtat) break; --crtat; @@ -1094,19 +1099,32 @@ sput(cp, n) } break; case VSS_ESCAPE: - if (c == '[') { /* Start ESC [ sequence */ - vs.cx = vs.cy = 0; - vs.state = VSS_EBRACE; - } else if (c == 'c') { /* Clear screen & home */ - fillw((vs.at << 8) | ' ', - Crtat, vs.nchr); - crtat = Crtat; - vs.col = 0; - vs.state = 0; - } else { /* Invalid, clear state */ - wrtchar(c, vs.so_at); - vs.state = 0; - goto maybe_scroll; + switch (c) { + case '[': /* Start ESC [ sequence */ + vs.cx = vs.cy = 0; + vs.state = VSS_EBRACE; + break; + case 'c': /* Create screen & home */ + fillw((vs.at << 8) | ' ', + Crtat, vs.nchr); + crtat = Crtat; + vs.col = 0; + vs.state = 0; + break; + case '7': /* save cursor pos */ + vs.offset = crtat - Crtat; + vs.state = 0; + break; + case '8': /* restore cursor pos */ + crtat = Crtat + vs.offset; + vs.row = vs.offset / vs.ncol; + vs.col = vs.offset % vs.ncol; + vs.state = 0; + break; + default: /* Invalid, clear state */ + wrtchar(c, vs.so_at); + vs.state = 0; + goto maybe_scroll; } break; default: /* VSS_EBRACE or VSS_EPARAM */ @@ -1329,6 +1347,16 @@ sput(cp, n) ((vs.cy << 4) & BG_MASK); vs.state = 0; break; + case 's': /* save cursor pos */ + vs.offset = crtat - Crtat; + vs.state = 0; + break; + case 'u': /* restore cursor pos */ + crtat = Crtat + vs.offset; + vs.row = vs.offset / vs.ncol; + vs.col = vs.offset % vs.ncol; + vs.state = 0; + break; case 'x': /* set attributes */ switch (vs.cx) { case 0: |