Annotation of src/usr.bin/tmux/screen-redraw.c, Revision 1.11
1.11 ! nicm 1: /* $OpenBSD: screen-redraw.c,v 1.10 2009/08/31 20:46:19 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:
1.7 nicm 25: int screen_redraw_cell_border(struct client *, u_int, u_int);
1.1 nicm 26: int screen_redraw_check_cell(struct client *, u_int, u_int);
1.10 nicm 27: void screen_redraw_draw_number(struct client *, struct window_pane *);
1.1 nicm 28:
1.6 nicm 29: #define CELL_INSIDE 0
1.7 nicm 30: #define CELL_LEFTRIGHT 1
31: #define CELL_TOPBOTTOM 2
32: #define CELL_TOPLEFT 3
33: #define CELL_TOPRIGHT 4
34: #define CELL_BOTTOMLEFT 5
35: #define CELL_BOTTOMRIGHT 6
36: #define CELL_TOPJOIN 7
37: #define CELL_BOTTOMJOIN 8
38: #define CELL_LEFTJOIN 9
39: #define CELL_RIGHTJOIN 10
40: #define CELL_JOIN 11
41: #define CELL_OUTSIDE 12
1.6 nicm 42:
1.7 nicm 43: /* Check if a cell is on the pane border. */
1.1 nicm 44: int
1.7 nicm 45: screen_redraw_cell_border(struct client *c, u_int px, u_int py)
1.1 nicm 46: {
47: struct window *w = c->session->curw->window;
48: struct window_pane *wp;
49:
1.7 nicm 50: /* Check all the panes. */
1.1 nicm 51: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 52: if (!window_pane_visible(wp))
53: continue;
54:
1.1 nicm 55: /* Inside pane. */
56: if (px >= wp->xoff && px < wp->xoff + wp->sx &&
57: py >= wp->yoff && py < wp->yoff + wp->sy)
1.7 nicm 58: return (0);
1.1 nicm 59:
60: /* Left/right borders. */
1.7 nicm 61: if ((wp->yoff == 0 || py >= wp->yoff - 1) &&
62: py <= wp->yoff + wp->sy) {
1.1 nicm 63: if (wp->xoff != 0 && px == wp->xoff - 1)
1.7 nicm 64: return (1);
1.1 nicm 65: if (px == wp->xoff + wp->sx)
1.7 nicm 66: return (1);
1.1 nicm 67: }
68:
69: /* Top/bottom borders. */
1.7 nicm 70: if ((wp->xoff == 0 || px >= wp->xoff - 1) &&
71: px <= wp->xoff + wp->sx) {
1.1 nicm 72: if (wp->yoff != 0 && py == wp->yoff - 1)
1.7 nicm 73: return (1);
1.1 nicm 74: if (py == wp->yoff + wp->sy)
1.7 nicm 75: return (1);
76: }
77: }
78:
79: return (0);
80: }
81:
82: /* Check if cell inside a pane. */
83: int
84: screen_redraw_check_cell(struct client *c, u_int px, u_int py)
85: {
86: struct window *w = c->session->curw->window;
87: struct window_pane *wp;
88: int borders;
89:
90: if (px > w->sx || py > w->sy)
91: return (CELL_OUTSIDE);
92:
93: TAILQ_FOREACH(wp, &w->panes, entry) {
94: if (!window_pane_visible(wp))
95: continue;
96:
97: /* If outside the pane and its border, skip it. */
98: if ((wp->xoff != 0 && px < wp->xoff - 1) ||
99: px > wp->xoff + wp->sx ||
100: (wp->yoff != 0 && py < wp->yoff - 1) ||
101: py > wp->yoff + wp->sy)
102: continue;
103:
104: /* If definitely inside, return so. */
105: if (!screen_redraw_cell_border(c, px, py))
106: return (CELL_INSIDE);
107:
108: /*
109: * Construct a bitmask of whether the cells to the left (bit
110: * 4), right, top, and bottom (bit 1) of this cell are borders.
111: */
112: borders = 0;
113: if (px == 0 || screen_redraw_cell_border(c, px - 1, py))
114: borders |= 8;
115: if (px <= w->sx && screen_redraw_cell_border(c, px + 1, py))
116: borders |= 4;
117: if (py == 0 || screen_redraw_cell_border(c, px, py - 1))
118: borders |= 2;
119: if (py <= w->sy && screen_redraw_cell_border(c, px, py + 1))
120: borders |= 1;
121:
122: /*
123: * Figure out what kind of border this cell is. Only one bit
124: * set doesn't make sense (can't have a border cell with no
125: * others connected).
126: */
127: switch (borders) {
128: case 15: /* 1111, left right top bottom */
129: return (CELL_JOIN);
130: case 14: /* 1110, left right top */
131: return (CELL_BOTTOMJOIN);
132: case 13: /* 1101, left right bottom */
133: return (CELL_TOPJOIN);
134: case 12: /* 1100, left right */
135: return (CELL_TOPBOTTOM);
136: case 11: /* 1011, left top bottom */
137: return (CELL_RIGHTJOIN);
138: case 10: /* 1010, left top */
139: return (CELL_BOTTOMRIGHT);
140: case 9: /* 1001, left bottom */
141: return (CELL_TOPRIGHT);
142: case 7: /* 0111, right top bottom */
143: return (CELL_LEFTJOIN);
144: case 6: /* 0110, right top */
145: return (CELL_BOTTOMLEFT);
146: case 5: /* 0101, right bottom */
147: return (CELL_TOPLEFT);
148: case 3: /* 0011, top bottom */
149: return (CELL_LEFTRIGHT);
1.1 nicm 150: }
151: }
152:
1.6 nicm 153: return (CELL_OUTSIDE);
1.1 nicm 154: }
155:
1.4 nicm 156: /* Redraw entire screen. */
1.1 nicm 157: void
1.4 nicm 158: screen_redraw_screen(struct client *c, int status_only)
1.1 nicm 159: {
160: struct window *w = c->session->curw->window;
161: struct tty *tty = &c->tty;
162: struct window_pane *wp;
1.6 nicm 163: u_int i, j, type;
164: int status;
1.8 nicm 165: const u_char *base, *ptr;
166: u_char ch, border[20];
1.1 nicm 167:
168: /* Get status line, er, status. */
1.4 nicm 169: if (c->message_string != NULL || c->prompt_string != NULL)
170: status = 1;
171: else
172: status = options_get_number(&c->session->options, "status");
173:
174: /* If only drawing status and it is present, don't need the rest. */
175: if (status_only && status) {
176: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
1.9 nicm 177: tty_reset(tty);
1.4 nicm 178: return;
179: }
1.1 nicm 180:
1.6 nicm 181: /* Draw background and borders. */
182: tty_reset(tty);
1.8 nicm 183: strlcpy(border, " |-....--||+.", sizeof border);
1.1 nicm 184: if (tty_term_has(tty->term, TTYC_ACSC)) {
1.8 nicm 185: base = " xqlkmjwvtun~";
186: for (ptr = base; *ptr != '\0'; ptr++) {
187: if ((ch = tty_get_acs(tty, *ptr)) != '\0')
188: border[ptr - base] = ch;
189: }
1.1 nicm 190: tty_putcode(tty, TTYC_SMACS);
1.8 nicm 191: }
1.1 nicm 192: for (j = 0; j < tty->sy - status; j++) {
1.4 nicm 193: if (status_only && j != tty->sy - 1)
194: continue;
1.1 nicm 195: for (i = 0; i < tty->sx; i++) {
1.6 nicm 196: type = screen_redraw_check_cell(c, i, j);
197: if (type != CELL_INSIDE) {
1.1 nicm 198: tty_cursor(tty, i, j, 0, 0);
1.6 nicm 199: tty_putc(tty, border[type]);
1.1 nicm 200: }
201: }
202: }
1.6 nicm 203: tty_putcode(tty, TTYC_RMACS);
1.1 nicm 204:
205: /* Draw the panes. */
206: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 207: if (!window_pane_visible(wp))
1.1 nicm 208: continue;
1.4 nicm 209: for (i = 0; i < wp->sy; i++) {
1.5 nicm 210: if (status_only && wp->yoff + i != tty->sy - 1)
1.4 nicm 211: continue;
212: tty_draw_line(tty, wp->screen, i, wp->xoff, wp->yoff);
213: }
1.10 nicm 214: if (c->flags & CLIENT_IDENTIFY)
215: screen_redraw_draw_number(c, wp);
1.1 nicm 216: }
217:
218: /* Draw the status line. */
1.4 nicm 219: if (status)
220: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
1.9 nicm 221: tty_reset(tty);
1.1 nicm 222: }
223:
224: /* Draw a single pane. */
225: void
226: screen_redraw_pane(struct client *c, struct window_pane *wp)
227: {
228: u_int i;
229:
230: for (i = 0; i < wp->sy; i++)
231: tty_draw_line(&c->tty, wp->screen, i, wp->xoff, wp->yoff);
1.9 nicm 232: tty_reset(&c->tty);
1.10 nicm 233: }
234:
235: /* Draw number on a pane. */
236: void
237: screen_redraw_draw_number(struct client *c, struct window_pane *wp)
238: {
239: struct tty *tty = &c->tty;
240: struct session *s = c->session;
241: struct grid_cell gc;
242: u_int idx, px, py, i, j;
1.11 ! nicm 243: int colour;
1.10 nicm 244: char buf[16], *ptr;
245: size_t len;
246:
247: idx = window_pane_index(wp->window, wp);
248: len = xsnprintf(buf, sizeof buf, "%u", idx);
249:
250: if (wp->sx < len)
251: return;
252: colour = options_get_number(&s->options, "display-panes-colour");
253:
254: px = wp->sx / 2;
255: py = wp->sy / 2;
256: if (wp->sx < len * 6 || wp->sy < 5) {
257: tty_cursor(tty, px - len / 2, py, wp->xoff, wp->yoff);
258: memcpy(&gc, &grid_default_cell, sizeof gc);
1.11 ! nicm 259: colour_set_fg(&gc, colour);
1.10 nicm 260: tty_attributes(tty, &gc);
261: tty_puts(tty, buf);
262: return;
263: }
264:
265: px -= len * 3;
266: py -= 2;
267:
268: memcpy(&gc, &grid_default_cell, sizeof gc);
1.11 ! nicm 269: colour_set_bg(&gc, colour);
1.10 nicm 270: tty_attributes(tty, &gc);
271: for (ptr = buf; *ptr != '\0'; ptr++) {
272: if (*ptr < '0' || *ptr > '9')
273: continue;
274: idx = *ptr - '0';
275:
276: for (j = 0; j < 5; j++) {
277: for (i = px; i < px + 5; i++) {
278: tty_cursor(tty, i, py + j, wp->xoff, wp->yoff);
1.11 ! nicm 279: if (clock_table[idx][j][i - px])
! 280: tty_putc(tty, ' ');
1.10 nicm 281: }
282: }
283: px += 6;
284: }
1.1 nicm 285: }
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