Annotation of src/usr.bin/tmux/screen-redraw.c, Revision 1.15
1.15 ! nicm 1: /* $OpenBSD: screen-redraw.c,v 1.14 2009/12/03 22:50:10 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:
1.15 ! nicm 25: int screen_redraw_cell_border1(struct window_pane *, u_int, u_int);
1.7 nicm 26: int screen_redraw_cell_border(struct client *, u_int, u_int);
1.1 nicm 27: int screen_redraw_check_cell(struct client *, u_int, u_int);
1.10 nicm 28: void screen_redraw_draw_number(struct client *, struct window_pane *);
1.1 nicm 29:
1.6 nicm 30: #define CELL_INSIDE 0
1.7 nicm 31: #define CELL_LEFTRIGHT 1
32: #define CELL_TOPBOTTOM 2
33: #define CELL_TOPLEFT 3
34: #define CELL_TOPRIGHT 4
35: #define CELL_BOTTOMLEFT 5
36: #define CELL_BOTTOMRIGHT 6
37: #define CELL_TOPJOIN 7
38: #define CELL_BOTTOMJOIN 8
39: #define CELL_LEFTJOIN 9
40: #define CELL_RIGHTJOIN 10
41: #define CELL_JOIN 11
42: #define CELL_OUTSIDE 12
1.6 nicm 43:
1.15 ! nicm 44: /* Check if cell is on the border of a particular pane. */
! 45: int
! 46: screen_redraw_cell_border1(struct window_pane *wp, u_int px, u_int py)
! 47: {
! 48: /* Inside pane. */
! 49: if (px >= wp->xoff && px < wp->xoff + wp->sx &&
! 50: py >= wp->yoff && py < wp->yoff + wp->sy)
! 51: return (0);
! 52:
! 53: /* Left/right borders. */
! 54: if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= wp->yoff + wp->sy) {
! 55: if (wp->xoff != 0 && px == wp->xoff - 1)
! 56: return (1);
! 57: if (px == wp->xoff + wp->sx)
! 58: return (1);
! 59: }
! 60:
! 61: /* Top/bottom borders. */
! 62: if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= wp->xoff + wp->sx) {
! 63: if (wp->yoff != 0 && py == wp->yoff - 1)
! 64: return (1);
! 65: if (py == wp->yoff + wp->sy)
! 66: return (1);
! 67: }
! 68:
! 69: /* Outside pane. */
! 70: return (-1);
! 71: }
! 72:
1.7 nicm 73: /* Check if a cell is on the pane border. */
1.1 nicm 74: int
1.7 nicm 75: screen_redraw_cell_border(struct client *c, u_int px, u_int py)
1.1 nicm 76: {
77: struct window *w = c->session->curw->window;
78: struct window_pane *wp;
1.15 ! nicm 79: int retval;
1.1 nicm 80:
1.7 nicm 81: /* Check all the panes. */
1.1 nicm 82: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 83: if (!window_pane_visible(wp))
84: continue;
1.15 ! nicm 85: if ((retval = screen_redraw_cell_border1(wp, px, py)) != -1)
! 86: return (retval);
1.7 nicm 87: }
88:
89: return (0);
90: }
91:
92: /* Check if cell inside a pane. */
93: int
94: screen_redraw_check_cell(struct client *c, u_int px, u_int py)
95: {
96: struct window *w = c->session->curw->window;
97: struct window_pane *wp;
98: int borders;
99:
100: if (px > w->sx || py > w->sy)
101: return (CELL_OUTSIDE);
102:
103: TAILQ_FOREACH(wp, &w->panes, entry) {
104: if (!window_pane_visible(wp))
105: continue;
106:
107: /* If outside the pane and its border, skip it. */
108: if ((wp->xoff != 0 && px < wp->xoff - 1) ||
109: px > wp->xoff + wp->sx ||
110: (wp->yoff != 0 && py < wp->yoff - 1) ||
111: py > wp->yoff + wp->sy)
112: continue;
113:
114: /* If definitely inside, return so. */
115: if (!screen_redraw_cell_border(c, px, py))
116: return (CELL_INSIDE);
117:
1.14 nicm 118: /*
1.7 nicm 119: * Construct a bitmask of whether the cells to the left (bit
120: * 4), right, top, and bottom (bit 1) of this cell are borders.
121: */
122: borders = 0;
123: if (px == 0 || screen_redraw_cell_border(c, px - 1, py))
124: borders |= 8;
125: if (px <= w->sx && screen_redraw_cell_border(c, px + 1, py))
126: borders |= 4;
127: if (py == 0 || screen_redraw_cell_border(c, px, py - 1))
128: borders |= 2;
129: if (py <= w->sy && screen_redraw_cell_border(c, px, py + 1))
130: borders |= 1;
131:
1.14 nicm 132: /*
1.7 nicm 133: * Figure out what kind of border this cell is. Only one bit
134: * set doesn't make sense (can't have a border cell with no
135: * others connected).
136: */
137: switch (borders) {
138: case 15: /* 1111, left right top bottom */
139: return (CELL_JOIN);
140: case 14: /* 1110, left right top */
141: return (CELL_BOTTOMJOIN);
142: case 13: /* 1101, left right bottom */
143: return (CELL_TOPJOIN);
144: case 12: /* 1100, left right */
145: return (CELL_TOPBOTTOM);
146: case 11: /* 1011, left top bottom */
147: return (CELL_RIGHTJOIN);
148: case 10: /* 1010, left top */
149: return (CELL_BOTTOMRIGHT);
150: case 9: /* 1001, left bottom */
151: return (CELL_TOPRIGHT);
152: case 7: /* 0111, right top bottom */
153: return (CELL_LEFTJOIN);
154: case 6: /* 0110, right top */
155: return (CELL_BOTTOMLEFT);
156: case 5: /* 0101, right bottom */
157: return (CELL_TOPLEFT);
158: case 3: /* 0011, top bottom */
159: return (CELL_LEFTRIGHT);
1.1 nicm 160: }
161: }
162:
1.6 nicm 163: return (CELL_OUTSIDE);
1.1 nicm 164: }
165:
1.4 nicm 166: /* Redraw entire screen. */
1.1 nicm 167: void
1.15 ! nicm 168: screen_redraw_screen(struct client *c, int status_only, int borders_only)
1.1 nicm 169: {
170: struct window *w = c->session->curw->window;
171: struct tty *tty = &c->tty;
172: struct window_pane *wp;
1.15 ! nicm 173: struct grid_cell active_gc, other_gc;
1.6 nicm 174: u_int i, j, type;
1.15 ! nicm 175: int status, fg, bg;
1.8 nicm 176: const u_char *base, *ptr;
177: u_char ch, border[20];
1.1 nicm 178:
179: /* Get status line, er, status. */
1.4 nicm 180: if (c->message_string != NULL || c->prompt_string != NULL)
181: status = 1;
182: else
183: status = options_get_number(&c->session->options, "status");
184:
185: /* If only drawing status and it is present, don't need the rest. */
186: if (status_only && status) {
187: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
1.9 nicm 188: tty_reset(tty);
1.4 nicm 189: return;
190: }
1.1 nicm 191:
1.15 ! nicm 192: /* Set up pane border attributes. */
! 193: memcpy(&other_gc, &grid_default_cell, sizeof other_gc);
! 194: memcpy(&active_gc, &grid_default_cell, sizeof active_gc);
! 195: active_gc.data = other_gc.data = 'x'; /* not space */
! 196: fg = options_get_number(&c->session->options, "pane-border-fg");
! 197: colour_set_fg(&other_gc, fg);
! 198: bg = options_get_number(&c->session->options, "pane-border-bg");
! 199: colour_set_bg(&other_gc, bg);
! 200: fg = options_get_number(&c->session->options, "pane-active-border-fg");
! 201: colour_set_fg(&active_gc, fg);
! 202: bg = options_get_number(&c->session->options, "pane-active-border-bg");
! 203: colour_set_bg(&active_gc, bg);
! 204:
1.6 nicm 205: /* Draw background and borders. */
1.8 nicm 206: strlcpy(border, " |-....--||+.", sizeof border);
1.1 nicm 207: if (tty_term_has(tty->term, TTYC_ACSC)) {
1.8 nicm 208: base = " xqlkmjwvtun~";
209: for (ptr = base; *ptr != '\0'; ptr++) {
210: if ((ch = tty_get_acs(tty, *ptr)) != '\0')
211: border[ptr - base] = ch;
212: }
1.15 ! nicm 213: other_gc.attr |= GRID_ATTR_CHARSET;
! 214: active_gc.attr |= GRID_ATTR_CHARSET;
1.8 nicm 215: }
1.1 nicm 216: for (j = 0; j < tty->sy - status; j++) {
1.4 nicm 217: if (status_only && j != tty->sy - 1)
218: continue;
1.1 nicm 219: for (i = 0; i < tty->sx; i++) {
1.6 nicm 220: type = screen_redraw_check_cell(c, i, j);
1.15 ! nicm 221: if (type == CELL_INSIDE)
! 222: continue;
! 223: if (screen_redraw_cell_border1(w->active, i, j) == 1)
! 224: tty_attributes(tty, &active_gc);
! 225: else
! 226: tty_attributes(tty, &other_gc);
! 227: tty_cursor(tty, i, j);
! 228: tty_putc(tty, border[type]);
1.1 nicm 229: }
230: }
231:
1.15 ! nicm 232: /* If only drawing borders, that's it. */
! 233: if (borders_only)
! 234: return;
! 235:
! 236: /* Draw the panes, if necessary. */
1.1 nicm 237: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 238: if (!window_pane_visible(wp))
1.1 nicm 239: continue;
1.4 nicm 240: for (i = 0; i < wp->sy; i++) {
1.5 nicm 241: if (status_only && wp->yoff + i != tty->sy - 1)
1.4 nicm 242: continue;
243: tty_draw_line(tty, wp->screen, i, wp->xoff, wp->yoff);
244: }
1.10 nicm 245: if (c->flags & CLIENT_IDENTIFY)
246: screen_redraw_draw_number(c, wp);
1.1 nicm 247: }
248:
249: /* Draw the status line. */
1.4 nicm 250: if (status)
251: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
1.9 nicm 252: tty_reset(tty);
1.1 nicm 253: }
254:
255: /* Draw a single pane. */
256: void
257: screen_redraw_pane(struct client *c, struct window_pane *wp)
258: {
259: u_int i;
260:
261: for (i = 0; i < wp->sy; i++)
262: tty_draw_line(&c->tty, wp->screen, i, wp->xoff, wp->yoff);
1.9 nicm 263: tty_reset(&c->tty);
1.10 nicm 264: }
265:
266: /* Draw number on a pane. */
267: void
268: screen_redraw_draw_number(struct client *c, struct window_pane *wp)
269: {
270: struct tty *tty = &c->tty;
271: struct session *s = c->session;
272: struct grid_cell gc;
1.12 nicm 273: u_int idx, px, py, i, j, xoff, yoff;
1.11 nicm 274: int colour;
1.10 nicm 275: char buf[16], *ptr;
276: size_t len;
277:
278: idx = window_pane_index(wp->window, wp);
279: len = xsnprintf(buf, sizeof buf, "%u", idx);
280:
281: if (wp->sx < len)
282: return;
283: colour = options_get_number(&s->options, "display-panes-colour");
284:
1.12 nicm 285: px = wp->sx / 2; py = wp->sy / 2;
286: xoff = wp->xoff; yoff = wp->yoff;
287:
1.10 nicm 288: if (wp->sx < len * 6 || wp->sy < 5) {
1.12 nicm 289: tty_cursor(tty, xoff + px - len / 2, yoff + py);
1.10 nicm 290: memcpy(&gc, &grid_default_cell, sizeof gc);
1.13 nicm 291: gc.data = '_'; /* not space */
1.11 nicm 292: colour_set_fg(&gc, colour);
1.10 nicm 293: tty_attributes(tty, &gc);
294: tty_puts(tty, buf);
295: return;
296: }
1.14 nicm 297:
1.10 nicm 298: px -= len * 3;
299: py -= 2;
300:
301: memcpy(&gc, &grid_default_cell, sizeof gc);
1.13 nicm 302: gc.data = '_'; /* not space */
1.11 nicm 303: colour_set_bg(&gc, colour);
1.10 nicm 304: tty_attributes(tty, &gc);
305: for (ptr = buf; *ptr != '\0'; ptr++) {
306: if (*ptr < '0' || *ptr > '9')
307: continue;
308: idx = *ptr - '0';
1.14 nicm 309:
1.10 nicm 310: for (j = 0; j < 5; j++) {
311: for (i = px; i < px + 5; i++) {
1.12 nicm 312: tty_cursor(tty, xoff + i, yoff + py + j);
1.11 nicm 313: if (clock_table[idx][j][i - px])
314: tty_putc(tty, ' ');
1.10 nicm 315: }
316: }
317: px += 6;
318: }
1.1 nicm 319: }
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