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