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Add box border drawing for active pane

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Add screen_redraw_draw_active_box() to draw a complete box border
around the active pane when box mode is enabled:

- Draw styled border (using pane-active-border-style) for active pane
- Draw blank spaces for inactive pane border areas
- Skip normal pane separator borders when box mode is active
- Adjust pane content drawing to account for box mode offset
- Call box drawing on border redraws, window redraws, and pane redraws

The box border uses the configured pane-border-lines style for the
line drawing characters.
This commit is contained in:
Patrick Motard 2025-12-06 15:42:25 -06:00
parent 3d3cdaedda
commit 27baf46563
1 changed files with 160 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

165
screen-redraw.c
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@ -35,6 +35,7 @@ static void screen_redraw_draw_scrollbar(struct screen_redraw_ctx *,
struct window_pane *, int, int, int, u_int, u_int, u_int);
static void screen_redraw_draw_pane_scrollbar(struct screen_redraw_ctx *,
struct window_pane *);
static void screen_redraw_draw_active_box(struct screen_redraw_ctx *);
#define START_ISOLATE "\342\201\246"
#define END_ISOLATE "\342\201\251"
@ -662,11 +663,13 @@ screen_redraw_screen(struct client *c)
screen_redraw_draw_borders(&ctx);
if (ctx.pane_status != PANE_STATUS_OFF)
screen_redraw_draw_pane_status(&ctx);
screen_redraw_draw_active_box(&ctx);
screen_redraw_draw_pane_scrollbars(&ctx);
}
if (flags & CLIENT_REDRAWWINDOW) {
log_debug("%s: redrawing panes", c->name);
screen_redraw_draw_panes(&ctx);
screen_redraw_draw_active_box(&ctx);
screen_redraw_draw_pane_scrollbars(&ctx);
}
if (ctx.statuslines != 0 &&
@ -696,8 +699,10 @@ screen_redraw_pane(struct client *c, struct window_pane *wp,
tty_sync_start(&c->tty);
tty_update_mode(&c->tty, c->tty.mode, NULL);
if (!redraw_scrollbar_only)
if (!redraw_scrollbar_only) {
screen_redraw_draw_pane(&ctx, wp);
screen_redraw_draw_active_box(&ctx);
}
if (window_pane_show_scrollbar(wp, ctx.pane_scrollbars))
screen_redraw_draw_pane_scrollbar(&ctx, wp);
@ -833,11 +838,20 @@ screen_redraw_draw_borders(struct screen_redraw_ctx *ctx)
struct client *c = ctx->c;
struct session *s = c->session;
struct window *w = s->curw->window;
struct options *oo = w->options;
struct window_pane *wp;
u_int i, j;
log_debug("%s: %s @%u", __func__, c->name, w->id);
/*
* Skip drawing pane separator borders when box mode is active,
* since each pane has its own complete box border.
*/
if (options_get_number(oo, "pane-border-indicators") == PANE_BORDER_BOX &&
TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL)
return;
TAILQ_FOREACH(wp, &w->panes, entry)
wp->border_gc_set = 0;
@ -847,6 +861,134 @@ screen_redraw_draw_borders(struct screen_redraw_ctx *ctx)
}
}
/* Draw box border around the active pane. */
static void
screen_redraw_draw_active_box(struct screen_redraw_ctx *ctx)
{
struct client *c = ctx->c;
struct session *s = c->session;
struct window *w = s->curw->window;
struct options *oo = w->options;
struct tty *tty = &c->tty;
struct window_pane *wp, *active_wp;
struct grid_cell gc, blank_gc;
struct format_tree *ft;
u_int i, top, left, right, bottom, tty_top;
int is_active;
/* Check if box mode is enabled. */
if (options_get_number(oo, "pane-border-indicators") != PANE_BORDER_BOX)
return;
if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) == NULL)
return;
/* Get active pane. */
active_wp = server_client_get_pane(c);
/* Account for status line at top. */
if (ctx->statustop)
tty_top = ctx->statuslines;
else
tty_top = 0;
/* Set up blank cell for inactive pane borders. */
memcpy(&blank_gc, &grid_default_cell, sizeof blank_gc);
utf8_set(&blank_gc.data, ' ');
/* Draw border area for all panes. */
TAILQ_FOREACH(wp, &w->panes, entry) {
if (!window_pane_visible(wp))
continue;
if (wp->sx < 3 || wp->sy < 3)
continue;
is_active = (wp == active_wp);
log_debug("%s: %s @%u %%%u active=%d", __func__, c->name,
w->id, wp->id, is_active);
/* Calculate box position. */
left = wp->xoff;
right = wp->xoff + wp->sx - 1;
top = wp->yoff;
bottom = wp->yoff + wp->sy - 1;
if (is_active) {
/* Set up grid cell with active border style. */
memcpy(&gc, &grid_default_cell, sizeof gc);
ft = format_create_defaults(NULL, c, s, s->curw, wp);
style_apply(&gc, oo, "pane-active-border-style", ft);
format_free(ft);
}
/* Draw top border. */
for (i = left; i <= right; i++) {
if (is_active) {
if (i == left)
screen_redraw_border_set(w, wp,
ctx->pane_lines, CELL_TOPLEFT, &gc);
else if (i == right)
screen_redraw_border_set(w, wp,
ctx->pane_lines, CELL_TOPRIGHT, &gc);
else
screen_redraw_border_set(w, wp,
ctx->pane_lines, CELL_LEFTRIGHT, &gc);
tty_cursor(tty, i, tty_top + top);
tty_cell(tty, &gc, &grid_default_cell, NULL, NULL);
} else {
tty_cursor(tty, i, tty_top + top);
tty_cell(tty, &blank_gc, &grid_default_cell, NULL, NULL);
}
}
/* Draw bottom border. */
for (i = left; i <= right; i++) {
if (is_active) {
if (i == left)
screen_redraw_border_set(w, wp,
ctx->pane_lines, CELL_BOTTOMLEFT, &gc);
else if (i == right)
screen_redraw_border_set(w, wp,
ctx->pane_lines, CELL_BOTTOMRIGHT, &gc);
else
screen_redraw_border_set(w, wp,
ctx->pane_lines, CELL_LEFTRIGHT, &gc);
tty_cursor(tty, i, tty_top + bottom);
tty_cell(tty, &gc, &grid_default_cell, NULL, NULL);
} else {
tty_cursor(tty, i, tty_top + bottom);
tty_cell(tty, &blank_gc, &grid_default_cell, NULL, NULL);
}
}
/* Draw left border (excluding corners). */
for (i = top + 1; i < bottom; i++) {
if (is_active) {
screen_redraw_border_set(w, wp, ctx->pane_lines,
CELL_TOPBOTTOM, &gc);
tty_cursor(tty, left, tty_top + i);
tty_cell(tty, &gc, &grid_default_cell, NULL, NULL);
} else {
tty_cursor(tty, left, tty_top + i);
tty_cell(tty, &blank_gc, &grid_default_cell, NULL, NULL);
}
}
/* Draw right border (excluding corners). */
for (i = top + 1; i < bottom; i++) {
if (is_active) {
screen_redraw_border_set(w, wp, ctx->pane_lines,
CELL_TOPBOTTOM, &gc);
tty_cursor(tty, right, tty_top + i);
tty_cell(tty, &gc, &grid_default_cell, NULL, NULL);
} else {
tty_cursor(tty, right, tty_top + i);
tty_cell(tty, &blank_gc, &grid_default_cell, NULL, NULL);
}
}
}
}
/* Draw the panes. */
static void
screen_redraw_draw_panes(struct screen_redraw_ctx *ctx)
@ -896,8 +1038,11 @@ screen_redraw_draw_pane(struct screen_redraw_ctx *ctx, struct window_pane *wp)
struct colour_palette *palette = &wp->palette;
struct grid_cell defaults;
u_int i, j, top, x, y, width;
int box_mode;
log_debug("%s: %s @%u %%%u", __func__, c->name, w->id, wp->id);
box_mode = window_pane_box_mode(wp);
log_debug("%s: %s @%u %%%u box=%d", __func__, c->name, w->id, wp->id,
box_mode);
if (wp->xoff + wp->sx <= ctx->ox || wp->xoff >= ctx->ox + ctx->sx)
return;
@ -905,34 +1050,44 @@ screen_redraw_draw_pane(struct screen_redraw_ctx *ctx, struct window_pane *wp)
top = ctx->statuslines;
else
top = 0;
for (j = 0; j < wp->sy; j++) {
for (j = 0; j < (box_mode ? wp->sy - 2 : wp->sy); j++) {
if (wp->yoff + j < ctx->oy || wp->yoff + j >= ctx->oy + ctx->sy)
continue;
y = top + wp->yoff + j - ctx->oy;
if (wp->xoff >= ctx->ox &&
if (box_mode) {
/* Box mode: draw at offset position. */
y = top + wp->yoff + 1 + j - ctx->oy;
i = 0;
x = wp->xoff + 1 - ctx->ox;
width = wp->sx - 2;
} else if (wp->xoff >= ctx->ox &&
wp->xoff + wp->sx <= ctx->ox + ctx->sx) {
/* All visible. */
y = top + wp->yoff + j - ctx->oy;
i = 0;
x = wp->xoff - ctx->ox;
width = wp->sx;
} else if (wp->xoff < ctx->ox &&
wp->xoff + wp->sx > ctx->ox + ctx->sx) {
/* Both left and right not visible. */
y = top + wp->yoff + j - ctx->oy;
i = ctx->ox;
x = 0;
width = ctx->sx;
} else if (wp->xoff < ctx->ox) {
/* Left not visible. */
y = top + wp->yoff + j - ctx->oy;
i = ctx->ox - wp->xoff;
x = 0;
width = wp->sx - i;
} else {
/* Right not visible. */
y = top + wp->yoff + j - ctx->oy;
i = 0;
x = wp->xoff - ctx->ox;
width = ctx->sx - x;
}
log_debug("%s: %s %%%u line %u,%u at %u,%u, width %u",
__func__, c->name, wp->id, i, j, x, y, width);