aboutsummaryrefslogtreecommitdiff
path: root/screen.c
diff options
context:
space:
mode:
Diffstat (limited to 'screen.c')
-rw-r--r--screen.c266
1 files changed, 1 insertions, 265 deletions
diff --git a/screen.c b/screen.c
index 1d968e4f..63619e61 100644
--- a/screen.c
+++ b/screen.c
@@ -1,4 +1,4 @@
-/* $Id: screen.c,v 1.11 2007-09-21 19:24:37 nicm Exp $ */
+/* $Id: screen.c,v 1.12 2007-09-28 22:47:21 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -35,30 +35,6 @@ void screen_make_lines(struct screen *, u_int, u_int);
void screen_move_lines(struct screen *, u_int, u_int, u_int);
void screen_fill_lines(
struct screen *, u_int, u_int, u_char, u_char, u_char);
-uint16_t screen_extract(u_char *);
-void screen_write_character(struct screen *, u_char);
-void screen_cursor_up_scroll(struct screen *);
-void screen_cursor_down_scroll(struct screen *);
-void screen_scroll_region_up(struct screen *);
-void screen_scroll_region_down(struct screen *);
-void screen_scroll_up(struct screen *, u_int);
-void screen_scroll_down(struct screen *, u_int);
-void screen_fill_screen(struct screen *, u_char, u_char, u_char);
-void screen_fill_line(struct screen *, u_int, u_char, u_char, u_char);
-void screen_fill_end_of_screen(
- struct screen *, u_int, u_int, u_char, u_char, u_char);
-void screen_fill_end_of_line(
- struct screen *, u_int, u_int, u_char, u_char, u_char);
-void screen_fill_start_of_line(
- struct screen *, u_int, u_int, u_char, u_char, u_char);
-void screen_insert_lines(struct screen *, u_int, u_int);
-void screen_delete_lines(struct screen *, u_int, u_int);
-void screen_insert_characters(struct screen *, u_int, u_int, u_int);
-void screen_delete_characters(struct screen *, u_int, u_int, u_int);
-
-#define SCREEN_DEFDATA ' '
-#define SCREEN_DEFATTR 0
-#define SCREEN_DEFCOLR 0x88
#define screen_last_y(s) ((s)->sy - 1)
#define screen_last_x(s) ((s)->sx - 1)
@@ -380,246 +356,6 @@ screen_fill_lines(
screen_fill_line(s, i, data, attr, colr);
}
-/* Update screen with character. */
-void
-screen_character(struct screen *s, u_char ch)
-{
- switch (ch) {
- case '\n': /* LF */
- screen_cursor_down_scroll(s);
- break;
- case '\r': /* CR */
- s->cx = 0;
- break;
- case '\010': /* BS */
- if (s->cx > 0)
- s->cx--;
- break;
- case '\177': /* DC */
- /* XXX */
- break;
- default:
- if (ch < ' ')
- fatalx("bad control");
- screen_write_character(s, ch);
- break;
- }
-}
-
-/* Extract 16-bit value from pointer. */
-uint16_t
-screen_extract(u_char *ptr)
-{
- uint16_t n;
-
- memcpy(&n, ptr, sizeof n);
- return (n);
-}
-
-/* Update screen with escape sequence. */
-void
-screen_sequence(struct screen *s, u_char *ptr)
-{
- uint16_t ua, ub;
-
- ptr++;
- log_debug("processing code %hhu", *ptr);
- switch (*ptr++) {
- case CODE_CURSORUP:
- ua = screen_extract(ptr);
- if (ua > s->cy)
- ua = s->cy;
- s->cy -= ua;
- break;
- case CODE_CURSORDOWN:
- ua = screen_extract(ptr);
- if (s->cy + ua > screen_last_y(s))
- ua = screen_last_y(s) - s->cy;
- s->cy += ua;
- break;
- case CODE_CURSORLEFT:
- ua = screen_extract(ptr);
- if (ua > s->cx)
- ua = s->cx;
- s->cx -= ua;
- break;
- case CODE_CURSORRIGHT:
- ua = screen_extract(ptr);
- if (s->cx + ua > screen_last_x(s))
- ua = screen_last_x(s) - s->cx;
- s->cx += ua;
- break;
- case CODE_CURSORMOVE:
- ua = screen_extract(ptr);
- ptr += 2;
- ub = screen_extract(ptr);
- if (ub > s->sx)
- ub = s->sx;
- s->cx = ub - 1;
- if (ua > s->sy)
- ua = s->sy;
- s->cy = ua - 1;
- break;
- case CODE_CLEARENDOFSCREEN:
- screen_fill_end_of_screen(
- s, s->cx, s->cy, SCREEN_DEFDATA, s->attr, s->colr);
- break;
- case CODE_CLEARSCREEN:
- screen_fill_screen(s, SCREEN_DEFDATA, s->attr, s->colr);
- break;
- case CODE_CLEARENDOFLINE:
- screen_fill_end_of_line(
- s, s->cx, s->cy, SCREEN_DEFDATA, s->attr, s->colr);
- break;
- case CODE_CLEARSTARTOFLINE:
- screen_fill_start_of_line(
- s, s->cx, s->cy, SCREEN_DEFDATA, s->attr, s->colr);
- break;
- case CODE_CLEARLINE:
- screen_fill_line(s, s->cy, SCREEN_DEFDATA, s->attr, s->colr);
- break;
- case CODE_INSERTLINE:
- ua = screen_extract(ptr);
- screen_insert_lines(s, s->cy, ua);
- break;
- case CODE_DELETELINE:
- ua = screen_extract(ptr);
- screen_delete_lines(s, s->cy, ua);
- break;
- case CODE_INSERTCHARACTER:
- ua = screen_extract(ptr);
- screen_insert_characters(s, s->cx, s->cy, ua);
- break;
- case CODE_DELETECHARACTER:
- ua = screen_extract(ptr);
- screen_delete_characters(s, s->cx, s->cy, ua);
- break;
- case CODE_CURSORON:
- s->mode |= MODE_CURSOR;
- break;
- case CODE_CURSOROFF:
- s->mode &= ~MODE_CURSOR;
- break;
- case CODE_REVERSEINDEX:
- screen_cursor_up_scroll(s);
- break;
- case CODE_SCROLLREGION:
- ua = screen_extract(ptr);
- ptr += 2;
- ub = screen_extract(ptr);
- if (ua > s->sy)
- ua = s->sy;
- s->ry_upper = ua - 1;
- if (ub > s->sy)
- ub = s->sy;
- s->ry_lower = ub - 1;
- break;
- case CODE_INSERTOFF:
- s->mode &= ~MODE_INSERT;
- break;
- case CODE_INSERTON:
- s->mode |= MODE_INSERT;
- break;
- case CODE_KCURSOROFF:
- s->mode &= ~MODE_KCURSOR;
- break;
- case CODE_KCURSORON:
- s->mode |= MODE_KCURSOR;
- break;
- case CODE_KKEYPADOFF:
- s->mode &= ~MODE_KKEYPAD;
- break;
- case CODE_KKEYPADON:
- s->mode |= MODE_KKEYPAD;
- break;
- case CODE_TITLE:
- ua = screen_extract(ptr);
- ptr += 2;
- log_debug("new title: %u:%.*s", ua, (int) ua, ptr);
- if (ua > (sizeof s->title) - 1)
- ua = (sizeof s->title) - 1;
- memcpy(s->title, ptr, ua);
- s->title[ua] = '\0';
- break;
- case CODE_ATTRIBUTES:
- ua = screen_extract(ptr);
- if (ua == 0) {
- s->attr = 0;
- s->colr = SCREEN_DEFCOLR;
- break;
- }
-
- while (ua-- > 0) {
- ptr += 2;
- ub = screen_extract(ptr);
- switch (ub) {
- case 0:
- case 10:
- s->attr = 0;
- s->colr = SCREEN_DEFCOLR;
- break;
- case 1:
- s->attr |= ATTR_BRIGHT;
- break;
- case 2:
- s->attr |= ATTR_DIM;
- break;
- case 3:
- s->attr |= ATTR_ITALICS;
- break;
- case 4:
- s->attr |= ATTR_UNDERSCORE;
- break;
- case 5:
- s->attr |= ATTR_BLINK;
- break;
- case 7:
- s->attr |= ATTR_REVERSE;
- break;
- case 8:
- s->attr |= ATTR_HIDDEN;
- break;
- case 23:
- s->attr &= ~ATTR_ITALICS;
- break;
- case 24:
- s->attr &= ~ATTR_UNDERSCORE;
- break;
- case 30:
- case 31:
- case 32:
- case 33:
- case 34:
- case 35:
- case 36:
- case 37:
- s->colr &= 0x0f;
- s->colr |= (ub - 30) << 4;
- break;
- case 39:
- s->colr &= 0x0f;
- s->colr |= 0x80;
- break;
- case 40:
- case 41:
- case 42:
- case 43:
- case 44:
- case 45:
- case 46:
- case 47:
- s->colr &= 0xf0;
- s->colr |= ub - 40;
- break;
- case 49:
- s->colr &= 0xf0;
- s->colr |= 0x08;
- break;
- }
- }
- }
-}
-
/* Write a single character to the screen at the cursor and move forward. */
void
screen_write_character(struct screen *s, u_char ch)
generated by cgit (git 2.34.1) at 2025-04-30 02:26:58 +0000