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https://github.com/tmux/tmux.git
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Draw pane borders.
This commit is contained in:
Nicholas Marriott
163
window-border.c
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163
window-border.c
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@@ -0,0 +1,163 @@
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/* $OpenBSD$ */
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/*
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* Copyright (c) 2026 Nicholas Marriott <nicholas.marriott@gmail.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include "tmux.h"
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/* Get border cell. */
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void
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window_get_border_cell(struct window *w, struct window_pane *wp,
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enum pane_lines pane_lines, int cell_type, struct grid_cell *gc)
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{
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u_int idx;
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if (cell_type == CELL_OUTSIDE && w->fill_character != NULL) {
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utf8_copy(&gc->data, &w->fill_character[0]);
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return;
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}
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switch (pane_lines) {
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case PANE_LINES_NUMBER:
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if (cell_type == CELL_OUTSIDE) {
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gc->attr |= GRID_ATTR_CHARSET;
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utf8_set(&gc->data, CELL_BORDERS[CELL_OUTSIDE]);
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break;
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}
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gc->attr &= ~GRID_ATTR_CHARSET;
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if (wp != NULL && window_pane_index(wp, &idx) == 0)
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utf8_set(&gc->data, '0' + (idx % 10));
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else
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utf8_set(&gc->data, '*');
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break;
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case PANE_LINES_DOUBLE:
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gc->attr &= ~GRID_ATTR_CHARSET;
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utf8_copy(&gc->data, tty_acs_double_borders(cell_type));
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break;
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case PANE_LINES_HEAVY:
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gc->attr &= ~GRID_ATTR_CHARSET;
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utf8_copy(&gc->data, tty_acs_heavy_borders(cell_type));
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break;
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case PANE_LINES_SIMPLE:
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gc->attr &= ~GRID_ATTR_CHARSET;
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utf8_set(&gc->data, SIMPLE_BORDERS[cell_type]);
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break;
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case PANE_LINES_NONE:
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case PANE_LINES_SPACES:
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gc->attr &= ~GRID_ATTR_CHARSET;
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utf8_set(&gc->data, ' ');
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break;
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default:
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gc->attr |= GRID_ATTR_CHARSET;
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utf8_set(&gc->data, CELL_BORDERS[cell_type]);
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break;
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}
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}
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/* Get pane border cell. */
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void
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window_pane_get_border_cell(struct window_pane *wp, int cell_type,
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struct grid_cell *gc)
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{
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enum pane_lines pane_lines = window_pane_get_pane_lines(wp);
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window_get_border_cell(wp->window, wp, pane_lines, cell_type, gc);
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}
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/* Get pane border style. */
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void
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window_pane_get_border_style(struct window_pane *wp, struct client *c,
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int active, struct grid_cell *gc)
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{
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struct session *s = c->session;
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struct format_tree *ft;
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const char *option;
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struct grid_cell *saved;
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int *flag;
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if (active) {
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flag = &wp->active_border_gc_set;
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saved = &wp->active_border_gc;
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option = "pane-active-border-style";
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} else {
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flag = &wp->border_gc_set;
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saved = &wp->border_gc;
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option = "pane-border-style";
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}
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if (!*flag) {
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ft = format_create_defaults(NULL, c, s, s->curw, wp);
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style_apply(saved, wp->options, option, ft);
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format_free(ft);
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*flag = 1;
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}
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memcpy(gc, saved, sizeof *gc);
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}
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/* Build pane status line. */
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void
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window_make_pane_status(struct window_pane *wp, struct client *c, u_int width,
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struct redraw_span *span)
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{
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struct grid_cell gc;
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const char *fmt, *border_option;
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struct format_tree *ft;
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struct style_line_entry *sle = &wp->border_status_line;
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struct screen_write_ctx ctx;
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char *expanded;
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u_int i;
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int pane_status, cell_type;
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pane_status = window_pane_get_pane_status(wp);
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if (pane_status == PANE_STATUS_OFF || width == 0)
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return;
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ft = format_create(c, NULL, FORMAT_PANE|wp->id, FORMAT_STATUS);
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format_defaults(ft, c, c->session, c->session->curw, wp);
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if (wp == server_client_get_pane(c))
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border_option = "pane-active-border-style";
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else
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border_option = "pane-border-style";
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style_apply(&gc, wp->options, border_option, ft);
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fmt = options_get_string(wp->options, "pane-border-format");
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expanded = format_expand_time(ft, fmt);
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screen_init(&wp->status_screen, width, 1, 0);
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wp->status_screen.mode = 0;
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screen_write_start(&ctx, &wp->status_screen);
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for (i = 0; i < width; i++) {
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cell_type = screen_redraw_get_span_cell_type(span, i);
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window_pane_get_border_cell(wp, cell_type, &gc);
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screen_write_cell(&ctx, &gc);
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}
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gc.attr &= ~GRID_ATTR_CHARSET;
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screen_write_cursormove(&ctx, 0, 0, 0);
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style_ranges_free(&sle->ranges);
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format_draw(&ctx, &gc, width, expanded, &sle->ranges, 0);
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screen_write_stop(&ctx);
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format_free(ft);
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free(sle->expanded);
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sle->expanded = expanded;
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}
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