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add dirty flag for lines

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This commit is contained in:
Aurélien Aptel 2011-10-20 23:20:59 +02:00
parent 907cb8bfa6
commit 0dbf9c8c12
1 changed files with 39 additions and 4 deletions
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41
st.c
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@ -111,6 +111,7 @@ typedef struct {
int col; /* nb col */
Line* line; /* screen */
Line* alt; /* alternate screen */
char* dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
@ -203,6 +204,7 @@ static void tsetattr(int*, int);
static void tsetchar(char*);
static void tsetscroll(int, int);
static void tswapscreen(void);
static void tfulldirt(void);
static void ttynew(void);
static void ttyread(void);
@ -748,6 +750,14 @@ ttyresize(int x, int y) {
fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
}
void
tfulldirt(void)
{
int i;
for(i = 0; i < term.row; i++)
term.dirty[i] = 1;
}
void
tcursor(int mode) {
static TCursor c;
@ -777,9 +787,12 @@ tnew(int col, int row) {
term.row = row, term.col = col;
term.line = malloc(term.row * sizeof(Line));
term.alt = malloc(term.row * sizeof(Line));
term.dirty = malloc(term.row * sizeof(*term.dirty));
for(row = 0; row < term.row; row++) {
term.line[row] = malloc(term.col * sizeof(Glyph));
term.alt [row] = malloc(term.col * sizeof(Glyph));
term.dirty[row] = 0;
}
/* setup screen */
treset();
@ -791,6 +804,7 @@ tswapscreen(void) {
term.line = term.alt;
term.alt = tmp;
term.mode ^= MODE_ALTSCREEN;
tfulldirt();
}
void
@ -806,6 +820,9 @@ tscrolldown(int orig, int n) {
temp = term.line[i];
term.line[i] = term.line[i-n];
term.line[i-n] = temp;
term.dirty[i] = 1;
term.dirty[i-n] = 1;
}
selscroll(orig, n);
@ -823,6 +840,9 @@ tscrollup(int orig, int n) {
temp = term.line[i];
term.line[i] = term.line[i+n];
term.line[i+n] = temp;
term.dirty[i] = 1;
term.dirty[i+n] = 1;
}
selscroll(orig, -n);
@ -896,6 +916,7 @@ tmoveto(int x, int y) {
void
tsetchar(char *c) {
term.dirty[term.c.y] = 1;
term.line[term.c.y][term.c.x] = term.c.attr;
memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
term.line[term.c.y][term.c.x].state |= GLYPH_SET;
@ -915,10 +936,12 @@ tclearregion(int x1, int y1, int x2, int y2) {
LIMIT(y1, 0, term.row-1);
LIMIT(y2, 0, term.row-1);
for(y = y1; y <= y2; y++)
for(y = y1; y <= y2; y++) {
term.dirty[y] = 1;
for(x = x1; x <= x2; x++)
term.line[y][x].state = 0;
}
}
void
tdeletechar(int n) {
@ -926,6 +949,8 @@ tdeletechar(int n) {
int dst = term.c.x;
int size = term.col - src;
term.dirty[term.c.y] = 1;
if(src >= term.col) {
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
return;
@ -940,6 +965,8 @@ tinsertblank(int n) {
int dst = src + n;
int size = term.col - dst;
term.dirty[term.c.y] = 1;
if(dst >= term.col) {
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
return;
@ -1411,7 +1438,8 @@ tputc(char *c) {
}
}
} else {
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey)) sel.bx = -1;
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
sel.bx = -1;
switch(ascii) {
case '\t':
tputtab();
@ -1479,9 +1507,11 @@ tresize(int col, int row) {
/* resize to new height */
term.line = realloc(term.line, row * sizeof(Line));
term.alt = realloc(term.alt, row * sizeof(Line));
term.dirty = realloc(term.dirty, row * sizeof(*term.dirty));
/* resize each row to new width, zero-pad if needed */
for(i = 0; i < minrow; i++) {
term.dirty[i] = 1;
term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
for(x = mincol; x < col; x++) {
@ -1492,6 +1522,7 @@ tresize(int col, int row) {
/* allocate any new rows */
for(/* i == minrow */; i < row; i++) {
term.dirty[i] = 1;
term.line[i] = calloc(col, sizeof(Glyph));
term.alt [i] = calloc(col, sizeof(Glyph));
}
@ -1502,6 +1533,7 @@ tresize(int col, int row) {
tmoveto(term.c.x, term.c.y);
/* reset scrolling region */
tsetscroll(0, row-1);
return (slide > 0);
}
@ -1792,8 +1824,11 @@ drawregion(int x1, int y1, int x2, int y2) {
if(!(xw.state & WIN_VISIBLE))
return;
xclear(x1, y1, x2-1, y2-1);
for(y = y1; y < y2; y++) {
if(!term.dirty[y])
continue;
xclear(0, y, term.col, y);
term.dirty[y] = 0;
base = term.line[y][0];
ic = ib = ox = 0;
for(x = x1; x < x2; x++) {