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Add support for a scrollbar at the side of each pane. New options

Browse Source 
pane-scrollbars turn them on or off, pane-scrollbars-position sets the
position (left or right), and pane-scrollbars-style to set the colours.
Mouse support will come later. From Michael Grant in GitHub issue 4221.
This commit is contained in:
nicm
2024-11-05 09:41:17 +00:00
parent a0c79aa87b
commit 09f4e43189
10 changed files with 481 additions and 108 deletions
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68
layout.c
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@ -275,7 +275,8 @@ layout_cell_is_bottom(struct window *w, struct layout_cell *lc)
* the case for the most upper or lower panes only.
*/
static int
layout_add_border(struct window *w, struct layout_cell *lc, int status)
layout_add_horizontal_border(struct window *w, struct layout_cell *lc,
int status)
{
if (status == PANE_STATUS_TOP)
return (layout_cell_is_top(w, lc));
@ -290,22 +291,41 @@ layout_fix_panes(struct window *w, struct window_pane *skip)
{
struct window_pane *wp;
struct layout_cell *lc;
int status;
int status, scrollbars, sb_pos;
u_int sx, sy, mode;
status = options_get_number(w->options, "pane-border-status");
scrollbars = options_get_number(w->options, "pane-scrollbars");
sb_pos = options_get_number(w->options, "pane-scrollbars-position");
TAILQ_FOREACH(wp, &w->panes, entry) {
if ((lc = wp->layout_cell) == NULL || wp == skip)
continue;
wp->xoff = lc->xoff;
wp->yoff = lc->yoff;
sx = lc->sx;
sy = lc->sy;
if (layout_add_border(w, lc, status)) {
if (layout_add_horizontal_border(w, lc, status)) {
if (status == PANE_STATUS_TOP)
wp->yoff++;
window_pane_resize(wp, lc->sx, lc->sy - 1);
} else
window_pane_resize(wp, lc->sx, lc->sy);
sy--;
}
mode = window_pane_mode(wp);
if (scrollbars == PANE_SCROLLBARS_ALWAYS ||
(scrollbars == PANE_SCROLLBARS_MODAL &&
mode != WINDOW_PANE_NO_MODE)) {
if (sb_pos == PANE_SCROLLBARS_LEFT) {
sx = sx - PANE_SCROLLBARS_WIDTH;
wp->xoff = wp->xoff + PANE_SCROLLBARS_WIDTH;
} else /* sb_pos == PANE_SCROLLBARS_RIGHT */
sx = sx - PANE_SCROLLBARS_WIDTH;
wp->flags |= PANE_REDRAWSCROLLBAR;
}
window_pane_resize(wp, sx, sy);
}
}
@ -337,17 +357,22 @@ layout_resize_check(struct window *w, struct layout_cell *lc,
{
struct layout_cell *lcchild;
u_int available, minimum;
int status;
int status, scrollbars;
status = options_get_number(w->options, "pane-border-status");
scrollbars = options_get_number(w->options, "pane-scrollbars");
if (lc->type == LAYOUT_WINDOWPANE) {
/* Space available in this cell only. */
if (type == LAYOUT_LEFTRIGHT) {
available = lc->sx;
minimum = PANE_MINIMUM;
if (scrollbars)
minimum = PANE_MINIMUM + PANE_SCROLLBARS_WIDTH;
else
minimum = PANE_MINIMUM;
} else {
available = lc->sy;
if (layout_add_border(w, lc, status))
if (layout_add_horizontal_border(w, lc, status))
minimum = PANE_MINIMUM + 1;
else
minimum = PANE_MINIMUM;
@ -873,6 +898,7 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
u_int sx, sy, xoff, yoff, size1, size2, minimum;
u_int new_size, saved_size, resize_first = 0;
int full_size = (flags & SPAWN_FULLSIZE), status;
int scrollbars;
/*
* If full_size is specified, add a new cell at the top of the window
@ -883,6 +909,7 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
else
lc = wp->layout_cell;
status = options_get_number(wp->window->options, "pane-border-status");
scrollbars = options_get_number(wp->window->options, "pane-scrollbars");
/* Copy the old cell size. */
sx = lc->sx;
@ -893,11 +920,15 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
/* Check there is enough space for the two new panes. */
switch (type) {
case LAYOUT_LEFTRIGHT:
if (sx < PANE_MINIMUM * 2 + 1)
if (scrollbars)
minimum = PANE_MINIMUM * 2 + PANE_SCROLLBARS_WIDTH;
else
minimum = PANE_MINIMUM * 2 + 1;
if (sx < minimum)
return (NULL);
break;
case LAYOUT_TOPBOTTOM:
if (layout_add_border(wp->window, lc, status))
if (layout_add_horizontal_border(wp->window, lc, status))
minimum = PANE_MINIMUM * 2 + 2;
else
minimum = PANE_MINIMUM * 2 + 1;
@ -1054,7 +1085,7 @@ layout_spread_cell(struct window *w, struct layout_cell *parent)
{
struct layout_cell *lc;
u_int number, each, size, this;
int change, changed, status;
int change, changed, status, scrollbars;
number = 0;
TAILQ_FOREACH (lc, &parent->cells, entry)
@ -1062,11 +1093,16 @@ layout_spread_cell(struct window *w, struct layout_cell *parent)
if (number <= 1)
return (0);
status = options_get_number(w->options, "pane-border-status");
scrollbars = options_get_number(w->options, "pane-scrollbars");
if (parent->type == LAYOUT_LEFTRIGHT)
size = parent->sx;
if (parent->type == LAYOUT_LEFTRIGHT) {
if (scrollbars)
size = parent->sx - PANE_SCROLLBARS_WIDTH;
else
size = parent->sx;
}
else if (parent->type == LAYOUT_TOPBOTTOM) {
if (layout_add_border(w, parent, status))
if (layout_add_horizontal_border(w, parent, status))
size = parent->sy - 1;
else
size = parent->sy;
@ -1087,7 +1123,7 @@ layout_spread_cell(struct window *w, struct layout_cell *parent)
change = each - (int)lc->sx;
layout_resize_adjust(w, lc, LAYOUT_LEFTRIGHT, change);
} else if (parent->type == LAYOUT_TOPBOTTOM) {
if (layout_add_border(w, lc, status))
if (layout_add_horizontal_border(w, lc, status))
this = each + 1;
else
this = each;