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1.5 ! nicm 1: /* $OpenBSD: screen-redraw.c,v 1.4 2009/07/14 19:03:16 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:
1.4 nicm 66: /* Redraw entire screen. */
1.1 nicm 67: void
1.4 nicm 68: screen_redraw_screen(struct client *c, int status_only)
1.1 nicm 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. */
1.4 nicm 78: if (c->message_string != NULL || c->prompt_string != NULL)
79: status = 1;
80: else
81: status = options_get_number(&c->session->options, "status");
82:
83: /* If only drawing status and it is present, don't need the rest. */
84: if (status_only && status) {
85: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
86: return;
87: }
1.1 nicm 88:
89: /* Work out ACS characters. */
90: if (tty_term_has(tty->term, TTYC_ACSC)) {
91: has_acs = 1;
92: choriz = tty_get_acs(tty, 'q');
93: cvert = tty_get_acs(tty, 'x');
94: cbackg = tty_get_acs(tty, '~');
95: } else {
96: has_acs = 0;
97: choriz = '-';
98: cvert = '|';
99: cbackg = '.';
100: }
101:
102: /* Clear the screen. */
103: tty_reset(tty);
104: if (has_acs)
105: tty_putcode(tty, TTYC_SMACS);
106: for (j = 0; j < tty->sy - status; j++) {
1.4 nicm 107: if (status_only && j != tty->sy - 1)
108: continue;
1.1 nicm 109: for (i = 0; i < tty->sx; i++) {
110: if (!screen_redraw_check_cell(c, i, j)) {
111: tty_cursor(tty, i, j, 0, 0);
112: tty_putc(tty, cbackg);
113: }
114: }
115: }
116: if (has_acs)
117: tty_putcode(tty, TTYC_RMACS);
118:
119: /* Draw the panes. */
120: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 121: if (!window_pane_visible(wp))
1.1 nicm 122: continue;
123:
124: tty_reset(tty);
125:
126: sx = wp->sx;
127: sy = wp->sy;
128:
129: /* Draw left and right borders. */
130: if (has_acs)
131: tty_putcode(tty, TTYC_SMACS);
132: if (wp->xoff > 0) {
133: for (i = wp->yoff; i < wp->yoff + sy; i++) {
1.4 nicm 134: if (status_only && i != tty->sy - 1)
135: continue;
1.1 nicm 136: tty_cursor(tty, wp->xoff - 1, i, 0, 0);
137: tty_putc(tty, cvert);
138: }
139: }
140: if (wp->xoff + sx < tty->sx) {
141: for (i = wp->yoff; i < wp->yoff + sy; i++) {
1.4 nicm 142: if (status_only && i != tty->sy - 1)
143: continue;
1.1 nicm 144: tty_cursor(tty, wp->xoff + sx, i, 0, 0);
145: tty_putc(&c->tty, cvert);
146: }
147: }
148:
149: /* Draw top and bottom borders. */
150: if (wp->yoff > 0) {
1.4 nicm 151: if (!status_only || wp->yoff - 1 == tty->sy - 1) {
152: tty_cursor(tty, wp->xoff, wp->yoff - 1, 0, 0);
153: for (i = 0; i < sx; i++)
154: tty_putc(tty, choriz);
155: }
1.1 nicm 156: }
157: if (wp->yoff + sy < tty->sy - status) {
1.4 nicm 158: if (!status_only || wp->yoff + sy == tty->sy - 1) {
159: tty_cursor(tty, wp->xoff, wp->yoff + sy, 0, 0);
160: for (i = 0; i < sx; i++)
161: tty_putc(tty, choriz);
162: }
1.1 nicm 163: }
164: if (has_acs)
165: tty_putcode(tty, TTYC_RMACS);
166:
167: /* Draw the pane. */
1.4 nicm 168: for (i = 0; i < wp->sy; i++) {
1.5 ! nicm 169: if (status_only && wp->yoff + i != tty->sy - 1)
1.4 nicm 170: continue;
171: tty_draw_line(tty, wp->screen, i, wp->xoff, wp->yoff);
172: }
1.1 nicm 173: }
174:
175: /* Draw the status line. */
1.4 nicm 176: if (status)
177: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
1.1 nicm 178: }
179:
180: /* Draw a single pane. */
181: void
182: screen_redraw_pane(struct client *c, struct window_pane *wp)
183: {
184: u_int i;
185:
186: for (i = 0; i < wp->sy; i++)
187: tty_draw_line(&c->tty, wp->screen, i, wp->xoff, wp->yoff);
188: }