Annotation of src/usr.bin/tmux/screen-redraw.c, Revision 1.6
1.6 ! nicm 1: /* $OpenBSD: screen-redraw.c,v 1.5 2009/07/14 19:11:58 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20:
21: #include <string.h>
22:
23: #include "tmux.h"
24:
25: int screen_redraw_check_cell(struct client *, u_int, u_int);
26:
1.6 ! nicm 27: #define CELL_INSIDE 0
! 28: #define CELL_LEFT 1
! 29: #define CELL_RIGHT 2
! 30: #define CELL_TOP 3
! 31: #define CELL_BOTTOM 4
! 32: #define CELL_OUTSIDE 5
! 33:
1.1 nicm 34: /* Check if cell inside a pane. */
35: int
36: screen_redraw_check_cell(struct client *c, u_int px, u_int py)
37: {
38: struct window *w = c->session->curw->window;
39: struct window_pane *wp;
40:
41: if (px > w->sx || py > w->sy)
1.6 ! nicm 42: return (CELL_OUTSIDE);
1.1 nicm 43:
44: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 45: if (!window_pane_visible(wp))
46: continue;
47:
1.1 nicm 48: /* Inside pane. */
49: if (px >= wp->xoff && px < wp->xoff + wp->sx &&
50: py >= wp->yoff && py < wp->yoff + wp->sy)
1.6 ! nicm 51: return (CELL_INSIDE);
1.1 nicm 52:
53: /* Left/right borders. */
54: if (py >= wp->yoff && py < wp->yoff + wp->sy) {
55: if (wp->xoff != 0 && px == wp->xoff - 1)
1.6 ! nicm 56: return (CELL_LEFT);
1.1 nicm 57: if (px == wp->xoff + wp->sx)
1.6 ! nicm 58: return (CELL_RIGHT);
1.1 nicm 59: }
60:
61: /* Top/bottom borders. */
62: if (px >= wp->xoff && px < wp->xoff + wp->sx) {
63: if (wp->yoff != 0 && py == wp->yoff - 1)
1.6 ! nicm 64: return (CELL_TOP);
1.1 nicm 65: if (py == wp->yoff + wp->sy)
1.6 ! nicm 66: return (CELL_BOTTOM);
1.1 nicm 67: }
68: }
69:
1.6 ! nicm 70: return (CELL_OUTSIDE);
1.1 nicm 71: }
72:
1.4 nicm 73: /* Redraw entire screen. */
1.1 nicm 74: void
1.4 nicm 75: screen_redraw_screen(struct client *c, int status_only)
1.1 nicm 76: {
77: struct window *w = c->session->curw->window;
78: struct tty *tty = &c->tty;
79: struct window_pane *wp;
1.6 ! nicm 80: u_int i, j, type;
! 81: int status;
! 82: const u_char *border;
1.1 nicm 83:
84: /* Get status line, er, status. */
1.4 nicm 85: if (c->message_string != NULL || c->prompt_string != NULL)
86: status = 1;
87: else
88: status = options_get_number(&c->session->options, "status");
89:
90: /* If only drawing status and it is present, don't need the rest. */
91: if (status_only && status) {
92: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
93: return;
94: }
1.1 nicm 95:
1.6 ! nicm 96: /* Draw background and borders. */
! 97: tty_reset(tty);
1.1 nicm 98: if (tty_term_has(tty->term, TTYC_ACSC)) {
1.6 ! nicm 99: border = " xxqq~";
1.1 nicm 100: tty_putcode(tty, TTYC_SMACS);
1.6 ! nicm 101: } else
! 102: border = " ||--.";
1.1 nicm 103: for (j = 0; j < tty->sy - status; j++) {
1.4 nicm 104: if (status_only && j != tty->sy - 1)
105: continue;
1.1 nicm 106: for (i = 0; i < tty->sx; i++) {
1.6 ! nicm 107: type = screen_redraw_check_cell(c, i, j);
! 108: if (type != CELL_INSIDE) {
1.1 nicm 109: tty_cursor(tty, i, j, 0, 0);
1.6 ! nicm 110: tty_putc(tty, border[type]);
1.1 nicm 111: }
112: }
113: }
1.6 ! nicm 114: tty_putcode(tty, TTYC_RMACS);
1.1 nicm 115:
116: /* Draw the panes. */
117: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 118: if (!window_pane_visible(wp))
1.1 nicm 119: continue;
1.4 nicm 120: for (i = 0; i < wp->sy; i++) {
1.5 nicm 121: if (status_only && wp->yoff + i != tty->sy - 1)
1.4 nicm 122: continue;
123: tty_draw_line(tty, wp->screen, i, wp->xoff, wp->yoff);
124: }
1.1 nicm 125: }
126:
127: /* Draw the status line. */
1.4 nicm 128: if (status)
129: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
1.1 nicm 130: }
131:
132: /* Draw a single pane. */
133: void
134: screen_redraw_pane(struct client *c, struct window_pane *wp)
135: {
136: u_int i;
137:
138: for (i = 0; i < wp->sy; i++)
139: tty_draw_line(&c->tty, wp->screen, i, wp->xoff, wp->yoff);
140: }
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