Annotation of src/usr.bin/tmux/screen-redraw.c, Revision 1.20
1.20 ! nicm 1: /* $OpenBSD: screen-redraw.c,v 1.19 2011/11/15 23:19:51 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:
1.17 nicm 44: #define CELL_BORDERS " xqlkmjwvtun~"
45:
1.15 nicm 46: /* Check if cell is on the border of a particular pane. */
47: int
48: screen_redraw_cell_border1(struct window_pane *wp, u_int px, u_int py)
49: {
50: /* Inside pane. */
51: if (px >= wp->xoff && px < wp->xoff + wp->sx &&
52: py >= wp->yoff && py < wp->yoff + wp->sy)
53: return (0);
54:
55: /* Left/right borders. */
56: if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= wp->yoff + wp->sy) {
57: if (wp->xoff != 0 && px == wp->xoff - 1)
58: return (1);
59: if (px == wp->xoff + wp->sx)
60: return (1);
61: }
62:
63: /* Top/bottom borders. */
64: if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= wp->xoff + wp->sx) {
65: if (wp->yoff != 0 && py == wp->yoff - 1)
66: return (1);
67: if (py == wp->yoff + wp->sy)
68: return (1);
69: }
70:
71: /* Outside pane. */
72: return (-1);
73: }
74:
1.7 nicm 75: /* Check if a cell is on the pane border. */
1.1 nicm 76: int
1.7 nicm 77: screen_redraw_cell_border(struct client *c, u_int px, u_int py)
1.1 nicm 78: {
79: struct window *w = c->session->curw->window;
80: struct window_pane *wp;
1.15 nicm 81: int retval;
1.1 nicm 82:
1.7 nicm 83: /* Check all the panes. */
1.1 nicm 84: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 85: if (!window_pane_visible(wp))
86: continue;
1.15 nicm 87: if ((retval = screen_redraw_cell_border1(wp, px, py)) != -1)
88: return (retval);
1.7 nicm 89: }
90:
91: return (0);
92: }
93:
94: /* Check if cell inside a pane. */
95: int
96: screen_redraw_check_cell(struct client *c, u_int px, u_int py)
97: {
98: struct window *w = c->session->curw->window;
99: struct window_pane *wp;
100: int borders;
101:
102: if (px > w->sx || py > w->sy)
103: return (CELL_OUTSIDE);
104:
105: TAILQ_FOREACH(wp, &w->panes, entry) {
106: if (!window_pane_visible(wp))
107: continue;
108:
109: /* If outside the pane and its border, skip it. */
110: if ((wp->xoff != 0 && px < wp->xoff - 1) ||
111: px > wp->xoff + wp->sx ||
112: (wp->yoff != 0 && py < wp->yoff - 1) ||
113: py > wp->yoff + wp->sy)
114: continue;
115:
116: /* If definitely inside, return so. */
117: if (!screen_redraw_cell_border(c, px, py))
118: return (CELL_INSIDE);
119:
1.14 nicm 120: /*
1.7 nicm 121: * Construct a bitmask of whether the cells to the left (bit
122: * 4), right, top, and bottom (bit 1) of this cell are borders.
123: */
124: borders = 0;
125: if (px == 0 || screen_redraw_cell_border(c, px - 1, py))
126: borders |= 8;
127: if (px <= w->sx && screen_redraw_cell_border(c, px + 1, py))
128: borders |= 4;
129: if (py == 0 || screen_redraw_cell_border(c, px, py - 1))
130: borders |= 2;
131: if (py <= w->sy && screen_redraw_cell_border(c, px, py + 1))
132: borders |= 1;
133:
1.14 nicm 134: /*
1.7 nicm 135: * Figure out what kind of border this cell is. Only one bit
136: * set doesn't make sense (can't have a border cell with no
137: * others connected).
138: */
139: switch (borders) {
140: case 15: /* 1111, left right top bottom */
141: return (CELL_JOIN);
142: case 14: /* 1110, left right top */
143: return (CELL_BOTTOMJOIN);
144: case 13: /* 1101, left right bottom */
145: return (CELL_TOPJOIN);
146: case 12: /* 1100, left right */
147: return (CELL_TOPBOTTOM);
148: case 11: /* 1011, left top bottom */
149: return (CELL_RIGHTJOIN);
150: case 10: /* 1010, left top */
151: return (CELL_BOTTOMRIGHT);
152: case 9: /* 1001, left bottom */
153: return (CELL_TOPRIGHT);
154: case 7: /* 0111, right top bottom */
155: return (CELL_LEFTJOIN);
156: case 6: /* 0110, right top */
157: return (CELL_BOTTOMLEFT);
158: case 5: /* 0101, right bottom */
159: return (CELL_TOPLEFT);
160: case 3: /* 0011, top bottom */
161: return (CELL_LEFTRIGHT);
1.1 nicm 162: }
163: }
164:
1.6 nicm 165: return (CELL_OUTSIDE);
1.1 nicm 166: }
167:
1.4 nicm 168: /* Redraw entire screen. */
1.1 nicm 169: void
1.15 nicm 170: screen_redraw_screen(struct client *c, int status_only, int borders_only)
1.1 nicm 171: {
172: struct window *w = c->session->curw->window;
173: struct tty *tty = &c->tty;
174: struct window_pane *wp;
1.15 nicm 175: struct grid_cell active_gc, other_gc;
1.6 nicm 176: u_int i, j, type;
1.15 nicm 177: int status, fg, bg;
1.18 nicm 178:
179: /* Suspended clients should not be updated. */
180: if (c->flags & CLIENT_SUSPENDED)
181: return;
1.1 nicm 182:
183: /* Get status line, er, status. */
1.4 nicm 184: if (c->message_string != NULL || c->prompt_string != NULL)
185: status = 1;
186: else
187: status = options_get_number(&c->session->options, "status");
188:
189: /* If only drawing status and it is present, don't need the rest. */
190: if (status_only && status) {
191: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
1.9 nicm 192: tty_reset(tty);
1.4 nicm 193: return;
194: }
1.1 nicm 195:
1.15 nicm 196: /* Set up pane border attributes. */
197: memcpy(&other_gc, &grid_default_cell, sizeof other_gc);
198: memcpy(&active_gc, &grid_default_cell, sizeof active_gc);
199: active_gc.data = other_gc.data = 'x'; /* not space */
1.17 nicm 200: active_gc.attr = other_gc.attr = GRID_ATTR_CHARSET;
1.15 nicm 201: fg = options_get_number(&c->session->options, "pane-border-fg");
202: colour_set_fg(&other_gc, fg);
203: bg = options_get_number(&c->session->options, "pane-border-bg");
204: colour_set_bg(&other_gc, bg);
205: fg = options_get_number(&c->session->options, "pane-active-border-fg");
206: colour_set_fg(&active_gc, fg);
207: bg = options_get_number(&c->session->options, "pane-active-border-bg");
208: colour_set_bg(&active_gc, bg);
209:
1.6 nicm 210: /* Draw background and borders. */
1.1 nicm 211: for (j = 0; j < tty->sy - status; j++) {
1.4 nicm 212: if (status_only && j != tty->sy - 1)
213: continue;
1.1 nicm 214: for (i = 0; i < tty->sx; i++) {
1.6 nicm 215: type = screen_redraw_check_cell(c, i, j);
1.15 nicm 216: if (type == CELL_INSIDE)
217: continue;
218: if (screen_redraw_cell_border1(w->active, i, j) == 1)
219: tty_attributes(tty, &active_gc);
220: else
221: tty_attributes(tty, &other_gc);
222: tty_cursor(tty, i, j);
1.17 nicm 223: tty_putc(tty, CELL_BORDERS[type]);
1.1 nicm 224: }
225: }
226:
1.15 nicm 227: /* If only drawing borders, that's it. */
228: if (borders_only)
229: return;
230:
231: /* Draw the panes, if necessary. */
1.1 nicm 232: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 233: if (!window_pane_visible(wp))
1.1 nicm 234: continue;
1.4 nicm 235: for (i = 0; i < wp->sy; i++) {
1.5 nicm 236: if (status_only && wp->yoff + i != tty->sy - 1)
1.4 nicm 237: continue;
238: tty_draw_line(tty, wp->screen, i, wp->xoff, wp->yoff);
239: }
1.10 nicm 240: if (c->flags & CLIENT_IDENTIFY)
241: screen_redraw_draw_number(c, wp);
1.1 nicm 242: }
243:
244: /* Draw the status line. */
1.4 nicm 245: if (status)
246: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
1.9 nicm 247: tty_reset(tty);
1.1 nicm 248: }
249:
250: /* Draw a single pane. */
251: void
252: screen_redraw_pane(struct client *c, struct window_pane *wp)
253: {
254: u_int i;
255:
256: for (i = 0; i < wp->sy; i++)
257: tty_draw_line(&c->tty, wp->screen, i, wp->xoff, wp->yoff);
1.9 nicm 258: tty_reset(&c->tty);
1.10 nicm 259: }
260:
261: /* Draw number on a pane. */
262: void
263: screen_redraw_draw_number(struct client *c, struct window_pane *wp)
264: {
265: struct tty *tty = &c->tty;
266: struct session *s = c->session;
1.19 nicm 267: struct options *oo = &s->options;
1.16 nicm 268: struct window *w = wp->window;
1.10 nicm 269: struct grid_cell gc;
1.12 nicm 270: u_int idx, px, py, i, j, xoff, yoff;
1.16 nicm 271: int colour, active_colour;
1.10 nicm 272: char buf[16], *ptr;
273: size_t len;
274:
1.19 nicm 275: if (window_pane_index(wp, &idx) != 0)
276: fatalx("index not found");
1.10 nicm 277: len = xsnprintf(buf, sizeof buf, "%u", idx);
278:
279: if (wp->sx < len)
280: return;
1.16 nicm 281: colour = options_get_number(oo, "display-panes-colour");
282: active_colour = options_get_number(oo, "display-panes-active-colour");
1.10 nicm 283:
1.12 nicm 284: px = wp->sx / 2; py = wp->sy / 2;
285: xoff = wp->xoff; yoff = wp->yoff;
286:
1.10 nicm 287: if (wp->sx < len * 6 || wp->sy < 5) {
1.12 nicm 288: tty_cursor(tty, xoff + px - len / 2, yoff + py);
1.20 ! nicm 289: goto draw_text;
1.10 nicm 290: }
1.14 nicm 291:
1.10 nicm 292: px -= len * 3;
293: py -= 2;
294:
295: memcpy(&gc, &grid_default_cell, sizeof gc);
1.13 nicm 296: gc.data = '_'; /* not space */
1.16 nicm 297: if (w->active == wp)
298: colour_set_bg(&gc, active_colour);
299: else
300: colour_set_bg(&gc, colour);
1.10 nicm 301: tty_attributes(tty, &gc);
302: for (ptr = buf; *ptr != '\0'; ptr++) {
303: if (*ptr < '0' || *ptr > '9')
304: continue;
305: idx = *ptr - '0';
1.14 nicm 306:
1.10 nicm 307: for (j = 0; j < 5; j++) {
308: for (i = px; i < px + 5; i++) {
1.12 nicm 309: tty_cursor(tty, xoff + i, yoff + py + j);
1.11 nicm 310: if (clock_table[idx][j][i - px])
311: tty_putc(tty, ' ');
1.10 nicm 312: }
313: }
314: px += 6;
315: }
1.20 ! nicm 316:
! 317: len = xsnprintf(buf, sizeof buf, "%ux%u", wp->sx, wp->sy);
! 318: if (wp->sx < len || wp->sy < 6)
! 319: return;
! 320: tty_cursor(tty, xoff + wp->sx - len, yoff);
! 321:
! 322: draw_text:
! 323: memcpy(&gc, &grid_default_cell, sizeof gc);
! 324: gc.data = '_'; /* not space */
! 325: if (w->active == wp)
! 326: colour_set_fg(&gc, active_colour);
! 327: else
! 328: colour_set_fg(&gc, colour);
! 329: tty_attributes(tty, &gc);
! 330: tty_puts(tty, buf);
! 331:
! 332: tty_cursor(tty, 0, 0);
1.1 nicm 333: }
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