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1.3 ! nicm 1: /* $OpenBSD: screen-redraw.c,v 1.2 2009/06/25 05:56:44 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:
27: /* Check if cell inside a pane. */
28: int
29: screen_redraw_check_cell(struct client *c, u_int px, u_int py)
30: {
31: struct window *w = c->session->curw->window;
32: struct window_pane *wp;
33:
34: if (px > w->sx || py > w->sy)
35: return (0);
36:
37: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 ! nicm 38: if (!window_pane_visible(wp))
! 39: continue;
! 40:
1.1 nicm 41: /* Inside pane. */
42: if (px >= wp->xoff && px < wp->xoff + wp->sx &&
43: py >= wp->yoff && py < wp->yoff + wp->sy)
44: return (1);
45:
46: /* Left/right borders. */
47: if (py >= wp->yoff && py < wp->yoff + wp->sy) {
48: if (wp->xoff != 0 && px == wp->xoff - 1)
49: return (1);
50: if (px == wp->xoff + wp->sx)
51: return (1);
52: }
53:
54: /* Top/bottom borders. */
55: if (px >= wp->xoff && px < wp->xoff + wp->sx) {
56: if (wp->yoff != 0 && py == wp->yoff - 1)
57: return (1);
58: if (py == wp->yoff + wp->sy)
59: return (1);
60: }
61: }
62:
63: return (0);
64: }
65:
66: /* Redraw entire screen.. */
67: void
68: screen_redraw_screen(struct client *c)
69: {
70: struct window *w = c->session->curw->window;
71: struct tty *tty = &c->tty;
72: struct window_pane *wp;
73: u_int i, j, sx, sy;
74: int status, has_acs;
75: u_char choriz, cvert, cbackg;
76:
77: /* Get status line, er, status. */
78: status = options_get_number(&c->session->options, "status");
79:
80: /* Work out ACS characters. */
81: if (tty_term_has(tty->term, TTYC_ACSC)) {
82: has_acs = 1;
83: choriz = tty_get_acs(tty, 'q');
84: cvert = tty_get_acs(tty, 'x');
85: cbackg = tty_get_acs(tty, '~');
86: } else {
87: has_acs = 0;
88: choriz = '-';
89: cvert = '|';
90: cbackg = '.';
91: }
92:
93: /* Clear the screen. */
94: tty_reset(tty);
95: if (has_acs)
96: tty_putcode(tty, TTYC_SMACS);
97: for (j = 0; j < tty->sy - status; j++) {
98: for (i = 0; i < tty->sx; i++) {
99: if (!screen_redraw_check_cell(c, i, j)) {
100: tty_cursor(tty, i, j, 0, 0);
101: tty_putc(tty, cbackg);
102: }
103: }
104: }
105: if (has_acs)
106: tty_putcode(tty, TTYC_RMACS);
107:
108: /* Draw the panes. */
109: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 ! nicm 110: if (!window_pane_visible(wp))
1.1 nicm 111: continue;
112:
113: tty_reset(tty);
114:
115: sx = wp->sx;
116: sy = wp->sy;
117:
118: /* Draw left and right borders. */
119: if (has_acs)
120: tty_putcode(tty, TTYC_SMACS);
121: if (wp->xoff > 0) {
122: for (i = wp->yoff; i < wp->yoff + sy; i++) {
123: tty_cursor(tty, wp->xoff - 1, i, 0, 0);
124: tty_putc(tty, cvert);
125: }
126: }
127: if (wp->xoff + sx < tty->sx) {
128: for (i = wp->yoff; i < wp->yoff + sy; i++) {
129: tty_cursor(tty, wp->xoff + sx, i, 0, 0);
130: tty_putc(&c->tty, cvert);
131: }
132: }
133:
134: /* Draw top and bottom borders. */
135: if (wp->yoff > 0) {
136: tty_cursor(tty, wp->xoff, wp->yoff - 1, 0, 0);
137: for (i = 0; i < sx; i++)
138: tty_putc(tty, choriz);
139: }
140: if (wp->yoff + sy < tty->sy - status) {
141: tty_cursor(tty, wp->xoff, wp->yoff + sy, 0, 0);
142: for (i = 0; i < sx; i++)
143: tty_putc(tty, choriz);
144: }
145: if (has_acs)
146: tty_putcode(tty, TTYC_RMACS);
147:
148: /* Draw the pane. */
149: screen_redraw_pane(c, wp);
150: }
151:
152: /* Draw the status line. */
153: screen_redraw_status(c);
154: }
155:
156: /* Draw a single pane. */
157: void
158: screen_redraw_pane(struct client *c, struct window_pane *wp)
159: {
160: u_int i;
161:
162: for (i = 0; i < wp->sy; i++)
163: tty_draw_line(&c->tty, wp->screen, i, wp->xoff, wp->yoff);
164: }
165:
166:
167: /* Draw the status line. */
168: void
169: screen_redraw_status(struct client *c)
170: {
171: tty_draw_line(&c->tty, &c->status, 0, 0, c->tty.sy - 1);
172: }