termpty: very early support of Right/Left margins

devs/iscaro/meson
Boris Faure 6 years ago
parent 91ce6e8960
commit 7ab925dc76
  1. 2
      src/bin/termpty.h
  2. 65
      src/bin/termptyesc.c
  3. 3
      src/bin/termptyops.c

@ -135,7 +135,9 @@ struct _Termpty
unsigned char charsetch;
unsigned char chset[4];
int top_margin, bottom_margin;
int left_margin, right_margin;
int had_cr_x, had_cr_y;
unsigned int lr_margins : 1;
unsigned int restrict_cursor : 1;
unsigned int multibyte : 1;
unsigned int alt_kp : 1;

@ -210,6 +210,22 @@ _switch_to_alternative_screen(Termpty *ty, int mode)
termpty_screen_swap(ty);
}
static void
_move_cursor_to_origin(Termpty *ty)
{
if (ty->termstate.restrict_cursor)
{
ty->cursor_state.cx = ty->termstate.left_margin;
ty->cursor_state.cy = ty->termstate.top_margin;
}
else
{
ty->cursor_state.cx = 0;
ty->cursor_state.cy = 0;
}
}
static void
_handle_esc_csi_reset_mode(Termpty *ty, Eina_Unicode cc, Eina_Unicode *b)
{
@ -272,15 +288,12 @@ _handle_esc_csi_reset_mode(Termpty *ty, Eina_Unicode cc, Eina_Unicode *b)
{
/* set, within margins */
ty->termstate.restrict_cursor = 1;
ty->cursor_state.cx = 0;
ty->cursor_state.cy = ty->termstate.top_margin;
}
else
{
ty->termstate.restrict_cursor = 0;
ty->cursor_state.cx = 0;
ty->cursor_state.cy = 0;
}
_move_cursor_to_origin(ty);
DBG("DECOM: mode (%d): cursor is at 0,0"
" cursor limited to screen/start point"
" for line #'s depends on top margin",
@ -349,6 +362,13 @@ _handle_esc_csi_reset_mode(Termpty *ty, Eina_Unicode cc, Eina_Unicode *b)
ty->termstate.send_bs = mode;
DBG("backspace send bs not del = %i", mode);
break;
case 69:
ty->termstate.lr_margins = mode;
if (!mode)
{
ty->termstate.left_margin = 0;
ty->termstate.right_margin = 0;
}
case 1000:
if (mode) ty->mouse_mode = MOUSE_NORMAL;
else ty->mouse_mode = MOUSE_OFF;
@ -750,6 +770,21 @@ _handle_esc_csi_dsr(Termpty *ty, Eina_Unicode *b)
}
}
static void
_handle_esc_csi_decslrm(Termpty *ty, Eina_Unicode **b)
{
int left = _csi_arg_get(b);
int right = _csi_arg_get(b);
DBG("DECSLRM (%d;%d) Set Left and Right Margins", left, right);
if (left < 1) left = 0;
if (right < 1) right = 0;
if (left >= right) return;
if (right - left < 2) return;
ty->termstate.left_margin = left;
ty->termstate.right_margin = right;
_move_cursor_to_origin(ty);
}
static int
_handle_esc_csi(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
{
@ -1107,13 +1142,19 @@ _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
ty->termstate.bottom_margin = 0;
}
}
ty->cursor_state.cx = 0;
ty->cursor_state.cy = (ty->termstate.restrict_cursor) ?
ty->termstate.top_margin : 0;
_move_cursor_to_origin(ty);
}
break;
case 's': // store cursor pos
termpty_cursor_copy(ty, EINA_TRUE);
case 's':
if (ty->termstate.lr_margins)
{
_handle_esc_csi_decslrm(ty, &b);
}
else
{
DBG("SCOSC: Save Current Cursor Position");
termpty_cursor_copy(ty, EINA_TRUE);
}
break;
case 't': // window manipulation
arg = _csi_arg_get(&b);
@ -1139,16 +1180,10 @@ _handle_esc_csi(Termpty *ty, const Eina_Unicode *c, Eina_Unicode *ce)
/*
case 'R': // report cursor
break;
case 's':
break;
case 't':
break;
case 'q': // set/clear led's
break;
case 'x': // request terminal parameters
break;
case 'r': // set top and bottom margins
break;
case 'y': // invoke confidence test
break;
*/

@ -399,6 +399,9 @@ termpty_reset_state(Termpty *ty)
ty->cursor_state.cy = 0;
ty->termstate.top_margin = 0;
ty->termstate.bottom_margin = 0;
ty->termstate.left_margin = 0;
ty->termstate.right_margin = 0;
ty->termstate.lr_margins = 0;
ty->termstate.had_cr_x = 0;
ty->termstate.had_cr_y = 0;
ty->termstate.restrict_cursor = 0;

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