diff options
Diffstat (limited to 'screen-redraw.c')
| -rw-r--r-- | screen-redraw.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/screen-redraw.c b/screen-redraw.c new file mode 100644 index 00000000..06033436 --- /dev/null +++ b/screen-redraw.c @@ -0,0 +1,171 @@ +/* $OpenBSD$ */ + +/* + * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER + * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/types.h> + +#include <string.h> + +#include "tmux.h" + +int screen_redraw_check_cell(struct client *, u_int, u_int); + +/* Check if cell inside a pane. */ +int +screen_redraw_check_cell(struct client *c, u_int px, u_int py) +{ + struct window *w = c->session->curw->window; + struct window_pane *wp; + + if (px > w->sx || py > w->sy) + return (0); + + TAILQ_FOREACH(wp, &w->panes, entry) { + /* Inside pane. */ + if (px >= wp->xoff && px < wp->xoff + wp->sx && + py >= wp->yoff && py < wp->yoff + wp->sy) + return (1); + + /* Left/right borders. */ + if (py >= wp->yoff && py < wp->yoff + wp->sy) { + if (wp->xoff != 0 && px == wp->xoff - 1) + return (1); + if (px == wp->xoff + wp->sx) + return (1); + } + + /* Top/bottom borders. */ + if (px >= wp->xoff && px < wp->xoff + wp->sx) { + if (wp->yoff != 0 && py == wp->yoff - 1) + return (1); + if (py == wp->yoff + wp->sy) + return (1); + } + } + + return (0); +} + +/* Redraw entire screen.. */ +void +screen_redraw_screen(struct client *c) +{ + struct window *w = c->session->curw->window; + struct tty *tty = &c->tty; + struct window_pane *wp; + struct screen *s; + u_int i, j, sx, sy; + int status, has_acs; + u_char choriz, cvert, cbackg; + + /* Get status line, er, status. */ + status = options_get_number(&c->session->options, "status"); + + /* 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. */ + tty_reset(tty); + if (has_acs) + tty_putcode(tty, TTYC_SMACS); + for (j = 0; j < tty->sy - status; j++) { + for (i = 0; i < tty->sx; i++) { + if (!screen_redraw_check_cell(c, i, j)) { + tty_cursor(tty, i, j, 0, 0); + tty_putc(tty, cbackg); + } + } + } + if (has_acs) + tty_putcode(tty, TTYC_RMACS); + + /* Draw the panes. */ + TAILQ_FOREACH(wp, &w->panes, entry) { + if (wp->flags & PANE_HIDDEN) + continue; + + tty_reset(tty); + + s = wp->screen; + 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++) { + 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++) { + tty_cursor(tty, wp->xoff + sx, i, 0, 0); + tty_putc(&c->tty, cvert); + } + } + + /* Draw top and bottom borders. */ + if (wp->yoff > 0) { + 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) { + 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. */ + screen_redraw_pane(c, wp); + } + + /* Draw the status line. */ + screen_redraw_status(c); +} + +/* Draw a single pane. */ +void +screen_redraw_pane(struct client *c, struct window_pane *wp) +{ + u_int i; + + for (i = 0; i < wp->sy; i++) + tty_draw_line(&c->tty, wp->screen, i, wp->xoff, wp->yoff); +} + + +/* Draw the status line. */ +void +screen_redraw_status(struct client *c) +{ + tty_draw_line(&c->tty, &c->status, 0, 0, c->tty.sy - 1); +} |