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Simplify screen redrawing by drawing the border and background together rather

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than border separately, and consolidating all the drawing characters into one
string.
This commit is contained in:
Nicholas Marriott 2009-07-24 16:21:42 +00:00
parent 1d1ea681f0
commit 029599c02c
1 changed files with 26 additions and 74 deletions
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100
screen-redraw.c
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@ -24,6 +24,13 @@
int screen_redraw_check_cell(struct client *, u_int, u_int);
#define CELL_INSIDE 0
#define CELL_LEFT 1
#define CELL_RIGHT 2
#define CELL_TOP 3
#define CELL_BOTTOM 4
#define CELL_OUTSIDE 5
/* Check if cell inside a pane. */
int
screen_redraw_check_cell(struct client *c, u_int px, u_int py)
@ -32,7 +39,7 @@ screen_redraw_check_cell(struct client *c, u_int px, u_int py)
struct window_pane *wp;
if (px > w->sx || py > w->sy)
return (0);
return (CELL_OUTSIDE);
TAILQ_FOREACH(wp, &w->panes, entry) {
if (!window_pane_visible(wp))
@ -41,26 +48,26 @@ screen_redraw_check_cell(struct client *c, u_int px, u_int py)
/* Inside pane. */
if (px >= wp->xoff && px < wp->xoff + wp->sx &&
py >= wp->yoff && py < wp->yoff + wp->sy)
return (1);
return (CELL_INSIDE);
/* Left/right borders. */
if (py >= wp->yoff && py < wp->yoff + wp->sy) {
if (wp->xoff != 0 && px == wp->xoff - 1)
return (1);
return (CELL_LEFT);
if (px == wp->xoff + wp->sx)
return (1);
return (CELL_RIGHT);
}
/* Top/bottom borders. */
if (px >= wp->xoff && px < wp->xoff + wp->sx) {
if (wp->yoff != 0 && py == wp->yoff - 1)
return (1);
return (CELL_TOP);
if (py == wp->yoff + wp->sy)
return (1);
return (CELL_BOTTOM);
}
}
return (0);
return (CELL_OUTSIDE);
}
/* Redraw entire screen. */
@ -70,9 +77,9 @@ screen_redraw_screen(struct client *c, int status_only)
struct window *w = c->session->curw->window;
struct tty *tty = &c->tty;
struct window_pane *wp;
u_int i, j, sx, sy;
int status, has_acs;
u_char choriz, cvert, cbackg;
u_int i, j, type;
int status;
const u_char *border;
/* Get status line, er, status. */
if (c->message_string != NULL || c->prompt_string != NULL)
@ -86,85 +93,30 @@ screen_redraw_screen(struct client *c, int status_only)
return;
}
/* Work out ACS characters. */
if (tty_term_has(tty->term, TTYC_ACSC)) {
has_acs = 1;
choriz = tty_get_acs(tty, 'q');
cvert = tty_get_acs(tty, 'x');
cbackg = tty_get_acs(tty, '~');
} else {
has_acs = 0;
choriz = '-';
cvert = '|';
cbackg = '.';
}
/* Clear the screen. */
/* Draw background and borders. */
tty_reset(tty);
if (has_acs)
if (tty_term_has(tty->term, TTYC_ACSC)) {
border = " xxqq~";
tty_putcode(tty, TTYC_SMACS);
} else
border = " ||--.";
for (j = 0; j < tty->sy - status; j++) {
if (status_only && j != tty->sy - 1)
continue;
for (i = 0; i < tty->sx; i++) {
if (!screen_redraw_check_cell(c, i, j)) {
type = screen_redraw_check_cell(c, i, j);
if (type != CELL_INSIDE) {
tty_cursor(tty, i, j, 0, 0);
tty_putc(tty, cbackg);
tty_putc(tty, border[type]);
}
}
}
if (has_acs)
tty_putcode(tty, TTYC_RMACS);
tty_putcode(tty, TTYC_RMACS);
/* Draw the panes. */
TAILQ_FOREACH(wp, &w->panes, entry) {
if (!window_pane_visible(wp))
continue;
tty_reset(tty);
sx = wp->sx;
sy = wp->sy;
/* Draw left and right borders. */
if (has_acs)
tty_putcode(tty, TTYC_SMACS);
if (wp->xoff > 0) {
for (i = wp->yoff; i < wp->yoff + sy; i++) {
if (status_only && i != tty->sy - 1)
continue;
tty_cursor(tty, wp->xoff - 1, i, 0, 0);
tty_putc(tty, cvert);
}
}
if (wp->xoff + sx < tty->sx) {
for (i = wp->yoff; i < wp->yoff + sy; i++) {
if (status_only && i != tty->sy - 1)
continue;
tty_cursor(tty, wp->xoff + sx, i, 0, 0);
tty_putc(&c->tty, cvert);
}
}
/* Draw top and bottom borders. */
if (wp->yoff > 0) {
if (!status_only || wp->yoff - 1 == tty->sy - 1) {
tty_cursor(tty, wp->xoff, wp->yoff - 1, 0, 0);
for (i = 0; i < sx; i++)
tty_putc(tty, choriz);
}
}
if (wp->yoff + sy < tty->sy - status) {
if (!status_only || wp->yoff + sy == tty->sy - 1) {
tty_cursor(tty, wp->xoff, wp->yoff + sy, 0, 0);
for (i = 0; i < sx; i++)
tty_putc(tty, choriz);
}
}
if (has_acs)
tty_putcode(tty, TTYC_RMACS);
/* Draw the pane. */
for (i = 0; i < wp->sy; i++) {
if (status_only && wp->yoff + i != tty->sy - 1)
continue;