Implementing Back Color Erase (BCE).
This commit is contained in:
parent
b4b513c791
commit
b78c5085f7
63
st.c
63
st.c
|
@ -152,7 +152,7 @@ typedef struct {
|
|||
uchar state; /* state flags */
|
||||
} Glyph;
|
||||
|
||||
typedef Glyph* Line;
|
||||
typedef Glyph *Line;
|
||||
|
||||
typedef struct {
|
||||
Glyph attr; /* current char attributes */
|
||||
|
@ -303,7 +303,7 @@ static void strhandle(void);
|
|||
static void strparse(void);
|
||||
static void strreset(void);
|
||||
|
||||
static void tclearregion(int, int, int, int);
|
||||
static void tclearregion(int, int, int, int, int);
|
||||
static void tcursor(int);
|
||||
static void tdeletechar(int);
|
||||
static void tdeleteline(int);
|
||||
|
@ -1113,7 +1113,7 @@ treset(void) {
|
|||
term.bot = term.row - 1;
|
||||
term.mode = MODE_WRAP;
|
||||
|
||||
tclearregion(0, 0, term.col-1, term.row-1);
|
||||
tclearregion(0, 0, term.col-1, term.row-1, 0);
|
||||
tmoveto(0, 0);
|
||||
tcursor(CURSOR_SAVE);
|
||||
}
|
||||
|
@ -1157,7 +1157,7 @@ tscrolldown(int orig, int n) {
|
|||
|
||||
LIMIT(n, 0, term.bot-orig+1);
|
||||
|
||||
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
|
||||
tclearregion(0, term.bot-n+1, term.col-1, term.bot, 0);
|
||||
|
||||
for(i = term.bot; i >= orig+n; i--) {
|
||||
temp = term.line[i];
|
||||
|
@ -1177,7 +1177,7 @@ tscrollup(int orig, int n) {
|
|||
Line temp;
|
||||
LIMIT(n, 0, term.bot-orig+1);
|
||||
|
||||
tclearregion(0, orig, term.col-1, orig+n-1);
|
||||
tclearregion(0, orig, term.col-1, orig+n-1, 0);
|
||||
|
||||
for(i = orig; i <= term.bot-n; i++) {
|
||||
temp = term.line[i];
|
||||
|
@ -1305,7 +1305,7 @@ tsetchar(char *c, Glyph *attr, int x, int y) {
|
|||
}
|
||||
|
||||
void
|
||||
tclearregion(int x1, int y1, int x2, int y2) {
|
||||
tclearregion(int x1, int y1, int x2, int y2, int bce) {
|
||||
int x, y, temp;
|
||||
|
||||
if(x1 > x2)
|
||||
|
@ -1320,8 +1320,15 @@ tclearregion(int x1, int y1, int x2, int y2) {
|
|||
|
||||
for(y = y1; y <= y2; y++) {
|
||||
term.dirty[y] = 1;
|
||||
for(x = x1; x <= x2; x++)
|
||||
term.line[y][x].state = 0;
|
||||
for(x = x1; x <= x2; x++) {
|
||||
if(bce) {
|
||||
term.line[y][x] = term.c.attr;
|
||||
memcpy(term.line[y][x].c, " ", 2);
|
||||
term.line[y][x].state |= GLYPH_SET;
|
||||
} else {
|
||||
term.line[y][x].state = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -1334,13 +1341,13 @@ tdeletechar(int n) {
|
|||
term.dirty[term.c.y] = 1;
|
||||
|
||||
if(src >= term.col) {
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 0);
|
||||
return;
|
||||
}
|
||||
|
||||
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
|
||||
size * sizeof(Glyph));
|
||||
tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
|
||||
tclearregion(term.col-n, term.c.y, term.col-1, term.c.y, 0);
|
||||
}
|
||||
|
||||
void
|
||||
|
@ -1352,13 +1359,13 @@ tinsertblank(int n) {
|
|||
term.dirty[term.c.y] = 1;
|
||||
|
||||
if(dst >= term.col) {
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 0);
|
||||
return;
|
||||
}
|
||||
|
||||
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
|
||||
size * sizeof(Glyph));
|
||||
tclearregion(src, term.c.y, dst - 1, term.c.y);
|
||||
tclearregion(src, term.c.y, dst - 1, term.c.y, 0);
|
||||
}
|
||||
|
||||
void
|
||||
|
@ -1542,8 +1549,10 @@ tsetmode(bool priv, bool set, int *args, int narg) {
|
|||
case 47:
|
||||
case 1047: {
|
||||
alt = IS_SET(MODE_ALTSCREEN);
|
||||
if(alt)
|
||||
tclearregion(0, 0, term.col-1, term.row-1);
|
||||
if(alt) {
|
||||
tclearregion(0, 0, term.col-1,
|
||||
term.row-1, 0);
|
||||
}
|
||||
if(set ^ alt) /* set is always 1 or 0 */
|
||||
tswapscreen();
|
||||
if(*args != 1049)
|
||||
|
@ -1662,17 +1671,19 @@ csihandle(void) {
|
|||
sel.bx = -1;
|
||||
switch(csiescseq.arg[0]) {
|
||||
case 0: /* below */
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||||
if(term.c.y < term.row-1)
|
||||
tclearregion(0, term.c.y+1, term.col-1, term.row-1);
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y, 1);
|
||||
if(term.c.y < term.row-1) {
|
||||
tclearregion(0, term.c.y+1, term.col-1,
|
||||
term.row-1, 1);
|
||||
}
|
||||
break;
|
||||
case 1: /* above */
|
||||
if(term.c.y > 1)
|
||||
tclearregion(0, 0, term.col-1, term.c.y-1);
|
||||
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
||||
tclearregion(0, 0, term.col-1, term.c.y-1, 1);
|
||||
tclearregion(0, term.c.y, term.c.x, term.c.y, 1);
|
||||
break;
|
||||
case 2: /* all */
|
||||
tclearregion(0, 0, term.col-1, term.row-1);
|
||||
tclearregion(0, 0, term.col-1, term.row-1, 1);
|
||||
break;
|
||||
default:
|
||||
goto unknown;
|
||||
|
@ -1681,13 +1692,14 @@ csihandle(void) {
|
|||
case 'K': /* EL -- Clear line */
|
||||
switch(csiescseq.arg[0]) {
|
||||
case 0: /* right */
|
||||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||||
tclearregion(term.c.x, term.c.y, term.col-1,
|
||||
term.c.y, 1);
|
||||
break;
|
||||
case 1: /* left */
|
||||
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
||||
tclearregion(0, term.c.y, term.c.x, term.c.y, 1);
|
||||
break;
|
||||
case 2: /* all */
|
||||
tclearregion(0, term.c.y, term.col-1, term.c.y);
|
||||
tclearregion(0, term.c.y, term.col-1, term.c.y, 1);
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
@ -1712,7 +1724,8 @@ csihandle(void) {
|
|||
break;
|
||||
case 'X': /* ECH -- Erase <n> char */
|
||||
DEFAULT(csiescseq.arg[0], 1);
|
||||
tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y);
|
||||
tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0],
|
||||
term.c.y, 0);
|
||||
break;
|
||||
case 'P': /* DCH -- Delete <n> char */
|
||||
DEFAULT(csiescseq.arg[0], 1);
|
||||
|
@ -2505,6 +2518,7 @@ xinit(void) {
|
|||
xw.fy = 0;
|
||||
}
|
||||
|
||||
/* Events */
|
||||
attrs.background_pixel = dc.col[defaultbg].pixel;
|
||||
attrs.border_pixel = dc.col[defaultbg].pixel;
|
||||
attrs.bit_gravity = NorthWestGravity;
|
||||
|
@ -2898,6 +2912,7 @@ drawregion(int x1, int y1, int x2, int y2) {
|
|||
ox = x;
|
||||
base = new;
|
||||
}
|
||||
|
||||
sl = utf8size(new.c);
|
||||
memcpy(buf+ib, new.c, sl);
|
||||
ib += sl;
|
||||
|
|
Loading…
Reference in New Issue