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Add scrollbar draw.

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This commit is contained in:
Nicholas Marriott
2026-06-16 17:02:44 +01:00
parent 0f571a7ed5
commit cd755fa4b2
2 changed files with 69 additions and 5 deletions
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1
cmd-capture-pane.c
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@@ -318,6 +318,7 @@ cmd_capture_pane_exec(struct cmd *self, struct cmdq_item *item)
grid_clear_history(wp->base.grid);
if (args_has(args, 'H'))
screen_reset_hyperlinks(wp->screen);
server_redraw_window(wp->window);
return (CMD_RETURN_NORMAL);
}

73
screen-redraw.c
View File

@@ -905,17 +905,80 @@ screen_redraw_draw_status_span(struct redraw_scene *scene,
tty_putc(tty, 's');
}
/* Draw a span. */
/* Draw a scrollbar span. */
static void
screen_redraw_draw_scrollbar_span(struct redraw_scene *scene,
struct redraw_span *span, u_int x, u_int y, u_int n)
{
struct client *c = scene->c;
struct tty *tty = &c->tty;
struct window_pane *wp = span->data.sb.wp;
struct screen *s = wp->screen;
struct tty *tty = &scene->c->tty;
struct style *sb_style = &wp->scrollbar_style;
struct grid_cell gc, slgc, *gcp;
double pct_view;
u_int total_height, slider_h, slider_y;
u_int sb_h = span->data.sb.height;
u_int sb_y = span->data.sb.y;
u_int i, off, sb_w, sb_pad;
int cm_y, cm_size;
if (window_pane_mode(wp) == WINDOW_PANE_NO_MODE) {
total_height = screen_size_y(s) + screen_hsize(s);
if (total_height == 0)
return;
pct_view = (double)sb_h / total_height;
slider_h = (double)sb_h * pct_view;
slider_y = sb_h - slider_h;
} else {
if (TAILQ_FIRST(&wp->modes) == NULL)
return;
if (window_copy_get_current_offset(wp, &cm_y, &cm_size) == 0)
return;
total_height = cm_size + sb_h;
if (total_height == 0)
return;
pct_view = (double)sb_h / total_height;
slider_h = (double)sb_h * pct_view;
slider_y = (sb_h + 1) * ((double)cm_y / total_height);
}
if (slider_h < 1)
slider_h = 1;
if (slider_y >= sb_h)
slider_y = sb_h - 1;
wp->sb_slider_y = slider_y;
wp->sb_slider_h = slider_h;
gc = sb_style->gc;
memcpy(&slgc, &gc, sizeof slgc);
slgc.fg = gc.bg;
slgc.bg = gc.fg;
sb_w = sb_style->width;
sb_pad = sb_style->pad;
off = x - span->x;
tty_cursor(tty, x, y);
for (x = 0; x < n; x++)
tty_putc(tty, '|');
for (i = 0; i < n; i++) {
if (span->data.sb.flags & REDRAW_SCROLLBAR_LEFT) {
if (off + i >= sb_w && off + i < sb_w + sb_pad) {
tty_cell(tty, &grid_default_cell, NULL);
continue;
}
} else {
if (off + i < sb_pad) {
tty_cell(tty, &grid_default_cell, NULL);
continue;
}
}
if (sb_y >= slider_y && sb_y < slider_y + slider_h)
gcp = &slgc;
else
gcp = &gc;
tty_cell(tty, gcp, NULL);
}
}
/* Draw a span. */