Annotation of src/usr.bin/tmux/screen-redraw.c, Revision 1.26
1.26 ! nicm 1: /* $OpenBSD: screen-redraw.c,v 1.25 2014/01/28 23:07:09 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);
1.24 nicm 27: int screen_redraw_check_cell(struct client *, u_int, u_int,
28: struct window_pane **);
29: int screen_redraw_check_active(u_int, u_int, int, struct window *,
30: struct window_pane *);
31:
1.26 ! nicm 32: void screen_redraw_draw_borders(struct client *, int, u_int);
! 33: void screen_redraw_draw_panes(struct client *, u_int);
! 34: void screen_redraw_draw_status(struct client *, u_int);
1.10 nicm 35: void screen_redraw_draw_number(struct client *, struct window_pane *);
1.1 nicm 36:
1.6 nicm 37: #define CELL_INSIDE 0
1.7 nicm 38: #define CELL_LEFTRIGHT 1
39: #define CELL_TOPBOTTOM 2
40: #define CELL_TOPLEFT 3
41: #define CELL_TOPRIGHT 4
42: #define CELL_BOTTOMLEFT 5
43: #define CELL_BOTTOMRIGHT 6
44: #define CELL_TOPJOIN 7
45: #define CELL_BOTTOMJOIN 8
46: #define CELL_LEFTJOIN 9
47: #define CELL_RIGHTJOIN 10
48: #define CELL_JOIN 11
49: #define CELL_OUTSIDE 12
1.6 nicm 50:
1.17 nicm 51: #define CELL_BORDERS " xqlkmjwvtun~"
52:
1.15 nicm 53: /* Check if cell is on the border of a particular pane. */
54: int
55: screen_redraw_cell_border1(struct window_pane *wp, u_int px, u_int py)
56: {
57: /* Inside pane. */
58: if (px >= wp->xoff && px < wp->xoff + wp->sx &&
59: py >= wp->yoff && py < wp->yoff + wp->sy)
60: return (0);
61:
62: /* Left/right borders. */
63: if ((wp->yoff == 0 || py >= wp->yoff - 1) && py <= wp->yoff + wp->sy) {
64: if (wp->xoff != 0 && px == wp->xoff - 1)
65: return (1);
66: if (px == wp->xoff + wp->sx)
67: return (1);
68: }
69:
70: /* Top/bottom borders. */
71: if ((wp->xoff == 0 || px >= wp->xoff - 1) && px <= wp->xoff + wp->sx) {
72: if (wp->yoff != 0 && py == wp->yoff - 1)
73: return (1);
74: if (py == wp->yoff + wp->sy)
75: return (1);
76: }
77:
78: /* Outside pane. */
79: return (-1);
80: }
81:
1.7 nicm 82: /* Check if a cell is on the pane border. */
1.1 nicm 83: int
1.7 nicm 84: screen_redraw_cell_border(struct client *c, u_int px, u_int py)
1.1 nicm 85: {
86: struct window *w = c->session->curw->window;
87: struct window_pane *wp;
1.15 nicm 88: int retval;
1.1 nicm 89:
1.7 nicm 90: /* Check all the panes. */
1.1 nicm 91: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 92: if (!window_pane_visible(wp))
93: continue;
1.15 nicm 94: if ((retval = screen_redraw_cell_border1(wp, px, py)) != -1)
95: return (retval);
1.7 nicm 96: }
97:
98: return (0);
99: }
100:
101: /* Check if cell inside a pane. */
102: int
1.24 nicm 103: screen_redraw_check_cell(struct client *c, u_int px, u_int py,
104: struct window_pane **wpp)
1.7 nicm 105: {
106: struct window *w = c->session->curw->window;
107: struct window_pane *wp;
108: int borders;
109:
110: if (px > w->sx || py > w->sy)
111: return (CELL_OUTSIDE);
112:
113: TAILQ_FOREACH(wp, &w->panes, entry) {
114: if (!window_pane_visible(wp))
115: continue;
1.24 nicm 116: *wpp = wp;
1.7 nicm 117:
118: /* If outside the pane and its border, skip it. */
119: if ((wp->xoff != 0 && px < wp->xoff - 1) ||
120: px > wp->xoff + wp->sx ||
121: (wp->yoff != 0 && py < wp->yoff - 1) ||
122: py > wp->yoff + wp->sy)
123: continue;
124:
125: /* If definitely inside, return so. */
126: if (!screen_redraw_cell_border(c, px, py))
127: return (CELL_INSIDE);
128:
1.14 nicm 129: /*
1.7 nicm 130: * Construct a bitmask of whether the cells to the left (bit
131: * 4), right, top, and bottom (bit 1) of this cell are borders.
132: */
133: borders = 0;
134: if (px == 0 || screen_redraw_cell_border(c, px - 1, py))
135: borders |= 8;
136: if (px <= w->sx && screen_redraw_cell_border(c, px + 1, py))
137: borders |= 4;
138: if (py == 0 || screen_redraw_cell_border(c, px, py - 1))
139: borders |= 2;
140: if (py <= w->sy && screen_redraw_cell_border(c, px, py + 1))
141: borders |= 1;
142:
1.14 nicm 143: /*
1.7 nicm 144: * Figure out what kind of border this cell is. Only one bit
145: * set doesn't make sense (can't have a border cell with no
146: * others connected).
147: */
148: switch (borders) {
149: case 15: /* 1111, left right top bottom */
150: return (CELL_JOIN);
151: case 14: /* 1110, left right top */
152: return (CELL_BOTTOMJOIN);
153: case 13: /* 1101, left right bottom */
154: return (CELL_TOPJOIN);
155: case 12: /* 1100, left right */
156: return (CELL_TOPBOTTOM);
157: case 11: /* 1011, left top bottom */
158: return (CELL_RIGHTJOIN);
159: case 10: /* 1010, left top */
160: return (CELL_BOTTOMRIGHT);
161: case 9: /* 1001, left bottom */
162: return (CELL_TOPRIGHT);
163: case 7: /* 0111, right top bottom */
164: return (CELL_LEFTJOIN);
165: case 6: /* 0110, right top */
166: return (CELL_BOTTOMLEFT);
167: case 5: /* 0101, right bottom */
168: return (CELL_TOPLEFT);
169: case 3: /* 0011, top bottom */
170: return (CELL_LEFTRIGHT);
1.1 nicm 171: }
172: }
173:
1.24 nicm 174: *wpp = NULL;
1.6 nicm 175: return (CELL_OUTSIDE);
1.1 nicm 176: }
177:
1.24 nicm 178: /* Check active pane indicator. */
179: int
180: screen_redraw_check_active(u_int px, u_int py, int type, struct window *w,
181: struct window_pane *wp)
182: {
183: /* Is this off the active pane border? */
184: if (screen_redraw_cell_border1(w->active, px, py) != 1)
185: return (0);
186:
187: /* If there are more than two panes, that's enough. */
188: if (window_count_panes(w) != 2)
189: return (1);
190:
191: /* Else if the cell is not a border cell, forget it. */
192: if (wp == NULL || (type == CELL_OUTSIDE || type == CELL_INSIDE))
193: return (1);
194:
195: /* Check if the pane covers the whole width. */
196: if (wp->xoff == 0 && wp->sx == w->sx) {
197: /* This can either be the top pane or the bottom pane. */
198: if (wp->yoff == 0) { /* top pane */
199: if (wp == w->active)
200: return (px <= wp->sx / 2);
201: return (px > wp->sx / 2);
202: }
203: return (0);
204: }
205:
206: /* Check if the pane covers the whole height. */
207: if (wp->yoff == 0 && wp->sy == w->sy) {
208: /* This can either be the left pane or the right pane. */
209: if (wp->xoff == 0) { /* left pane */
210: if (wp == w->active)
211: return (py <= wp->sy / 2);
212: return (py > wp->sy / 2);
213: }
214: return (0);
215: }
216:
217: return (type);
218: }
219:
1.4 nicm 220: /* Redraw entire screen. */
1.1 nicm 221: void
1.26 ! nicm 222: screen_redraw_screen(struct client *c, int draw_panes, int draw_status,
! 223: int draw_borders)
1.1 nicm 224: {
1.26 ! nicm 225: struct options *oo = &c->session->options;
! 226: struct tty *tty = &c->tty;
! 227: u_int top;
! 228: int status, spos;
1.18 nicm 229:
230: /* Suspended clients should not be updated. */
231: if (c->flags & CLIENT_SUSPENDED)
232: return;
1.1 nicm 233:
234: /* Get status line, er, status. */
1.21 nicm 235: spos = options_get_number(oo, "status-position");
1.4 nicm 236: if (c->message_string != NULL || c->prompt_string != NULL)
237: status = 1;
238: else
1.21 nicm 239: status = options_get_number(oo, "status");
240: top = 0;
241: if (status && spos == 0)
242: top = 1;
1.26 ! nicm 243: if (!status)
! 244: draw_status = 0;
! 245:
! 246: if (draw_borders)
! 247: screen_redraw_draw_borders(c, status, top);
! 248: if (draw_panes)
! 249: screen_redraw_draw_panes(c, top);
! 250: if (draw_status)
! 251: screen_redraw_draw_status(c, top);
! 252: tty_reset(tty);
! 253: }
1.4 nicm 254:
1.26 ! nicm 255: /* Draw a single pane. */
! 256: void
! 257: screen_redraw_pane(struct client *c, struct window_pane *wp)
! 258: {
! 259: u_int i, yoff;
! 260:
! 261: if (!window_pane_visible(wp))
1.4 nicm 262: return;
1.1 nicm 263:
1.26 ! nicm 264: yoff = wp->yoff;
! 265: if (status_at_line(c) == 0)
! 266: yoff++;
! 267:
! 268: for (i = 0; i < wp->sy; i++)
! 269: tty_draw_line(&c->tty, wp->screen, i, wp->xoff, yoff);
! 270: tty_reset(&c->tty);
! 271: }
! 272:
! 273: /* Draw the borders. */
! 274: void
! 275: screen_redraw_draw_borders(struct client *c, int status, u_int top)
! 276: {
! 277: struct window *w = c->session->curw->window;
! 278: struct options *oo = &c->session->options;
! 279: struct tty *tty = &c->tty;
! 280: struct window_pane *wp;
! 281: struct grid_cell active_gc, other_gc;
! 282: u_int i, j, type;
! 283:
1.25 nicm 284: style_apply(&other_gc, oo, "pane-border-style");
285: style_apply(&active_gc, oo, "pane-active-border-style");
1.26 ! nicm 286: active_gc.attr = other_gc.attr = GRID_ATTR_CHARSET;
1.15 nicm 287:
1.1 nicm 288: for (j = 0; j < tty->sy - status; j++) {
289: for (i = 0; i < tty->sx; i++) {
1.24 nicm 290: type = screen_redraw_check_cell(c, i, j, &wp);
1.15 nicm 291: if (type == CELL_INSIDE)
292: continue;
1.24 nicm 293: if (screen_redraw_check_active(i, j, type, w, wp))
1.15 nicm 294: tty_attributes(tty, &active_gc);
295: else
296: tty_attributes(tty, &other_gc);
1.21 nicm 297: tty_cursor(tty, i, top + j);
1.17 nicm 298: tty_putc(tty, CELL_BORDERS[type]);
1.1 nicm 299: }
300: }
1.26 ! nicm 301: }
1.1 nicm 302:
1.26 ! nicm 303: /* Draw the panes. */
! 304: void
! 305: screen_redraw_draw_panes(struct client *c, u_int top)
! 306: {
! 307: struct window *w = c->session->curw->window;
! 308: struct tty *tty = &c->tty;
! 309: struct window_pane *wp;
! 310: struct screen *s;
! 311: u_int i;
1.15 nicm 312:
1.1 nicm 313: TAILQ_FOREACH(wp, &w->panes, entry) {
1.3 nicm 314: if (!window_pane_visible(wp))
1.1 nicm 315: continue;
1.26 ! nicm 316: s = wp->screen;
! 317: for (i = 0; i < wp->sy; i++)
! 318: tty_draw_line(tty, s, i, wp->xoff, top + wp->yoff);
1.10 nicm 319: if (c->flags & CLIENT_IDENTIFY)
320: screen_redraw_draw_number(c, wp);
1.1 nicm 321: }
322: }
323:
1.26 ! nicm 324: /* Draw the status line. */
1.1 nicm 325: void
1.26 ! nicm 326: screen_redraw_draw_status(struct client *c, u_int top)
1.1 nicm 327: {
1.26 ! nicm 328: struct tty *tty = &c->tty;
1.23 nicm 329:
1.26 ! nicm 330: if (top)
! 331: tty_draw_line(tty, &c->status, 0, 0, 0);
! 332: else
! 333: tty_draw_line(tty, &c->status, 0, 0, tty->sy - 1);
1.10 nicm 334: }
335:
336: /* Draw number on a pane. */
337: void
338: screen_redraw_draw_number(struct client *c, struct window_pane *wp)
339: {
340: struct tty *tty = &c->tty;
341: struct session *s = c->session;
1.19 nicm 342: struct options *oo = &s->options;
1.16 nicm 343: struct window *w = wp->window;
1.10 nicm 344: struct grid_cell gc;
1.12 nicm 345: u_int idx, px, py, i, j, xoff, yoff;
1.16 nicm 346: int colour, active_colour;
1.10 nicm 347: char buf[16], *ptr;
348: size_t len;
349:
1.19 nicm 350: if (window_pane_index(wp, &idx) != 0)
351: fatalx("index not found");
1.10 nicm 352: len = xsnprintf(buf, sizeof buf, "%u", idx);
353:
354: if (wp->sx < len)
355: return;
1.16 nicm 356: colour = options_get_number(oo, "display-panes-colour");
357: active_colour = options_get_number(oo, "display-panes-active-colour");
1.10 nicm 358:
1.12 nicm 359: px = wp->sx / 2; py = wp->sy / 2;
360: xoff = wp->xoff; yoff = wp->yoff;
361:
1.10 nicm 362: if (wp->sx < len * 6 || wp->sy < 5) {
1.12 nicm 363: tty_cursor(tty, xoff + px - len / 2, yoff + py);
1.20 nicm 364: goto draw_text;
1.10 nicm 365: }
1.14 nicm 366:
1.10 nicm 367: px -= len * 3;
368: py -= 2;
369:
1.25 nicm 370: memcpy(&gc, &grid_default_cell, sizeof gc);
1.16 nicm 371: if (w->active == wp)
372: colour_set_bg(&gc, active_colour);
373: else
374: colour_set_bg(&gc, colour);
1.10 nicm 375: tty_attributes(tty, &gc);
376: for (ptr = buf; *ptr != '\0'; ptr++) {
377: if (*ptr < '0' || *ptr > '9')
378: continue;
379: idx = *ptr - '0';
1.14 nicm 380:
1.10 nicm 381: for (j = 0; j < 5; j++) {
382: for (i = px; i < px + 5; i++) {
1.12 nicm 383: tty_cursor(tty, xoff + i, yoff + py + j);
1.11 nicm 384: if (clock_table[idx][j][i - px])
385: tty_putc(tty, ' ');
1.10 nicm 386: }
387: }
388: px += 6;
389: }
1.20 nicm 390:
391: len = xsnprintf(buf, sizeof buf, "%ux%u", wp->sx, wp->sy);
392: if (wp->sx < len || wp->sy < 6)
393: return;
394: tty_cursor(tty, xoff + wp->sx - len, yoff);
395:
396: draw_text:
1.25 nicm 397: memcpy(&gc, &grid_default_cell, sizeof gc);
1.20 nicm 398: if (w->active == wp)
399: colour_set_fg(&gc, active_colour);
400: else
401: colour_set_fg(&gc, colour);
402: tty_attributes(tty, &gc);
403: tty_puts(tty, buf);
404:
405: tty_cursor(tty, 0, 0);
1.1 nicm 406: }
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