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1.1 misho 1: /* $OpenBSD$ */
2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
5: * Copyright (c) 2014 Tiago Cunha <tcunha@users.sourceforge.net>
6: *
7: * Permission to use, copy, modify, and distribute this software for any
8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
10: *
11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
16: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
17: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18: */
19:
20: #include <sys/types.h>
21:
22: #include <string.h>
23:
24: #include "tmux.h"
25:
26: /* Parse an embedded style of the form "fg=colour,bg=colour,bright,...". */
27: int
28: style_parse(const struct grid_cell *defgc, struct grid_cell *gc,
29: const char *in)
30: {
31: struct grid_cell savedgc;
32: const char delimiters[] = " ,";
33: char tmp[32];
34: int val, fg, bg, attr, flags;
35: size_t end;
36:
37: if (*in == '\0')
38: return (0);
39: if (strchr(delimiters, in[strlen(in) - 1]) != NULL)
40: return (-1);
41: memcpy(&savedgc, gc, sizeof savedgc);
42:
43: fg = gc->fg;
44: bg = gc->bg;
45: attr = gc->attr;
46: flags = gc->flags;
47: do {
48: end = strcspn(in, delimiters);
49: if (end > (sizeof tmp) - 1)
50: goto error;
51: memcpy(tmp, in, end);
52: tmp[end] = '\0';
53:
54: if (strcasecmp(tmp, "default") == 0) {
55: fg = defgc->fg;
56: bg = defgc->bg;
57: attr = defgc->attr;
58: flags = defgc->flags;
59: } else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) {
60: if ((val = colour_fromstring(tmp + 3)) == -1)
61: goto error;
62: if (*in == 'f' || *in == 'F') {
63: if (val != 8)
64: fg = val;
65: else
66: fg = defgc->fg;
67: } else if (*in == 'b' || *in == 'B') {
68: if (val != 8)
69: bg = val;
70: else
71: bg = defgc->bg;
72: } else
73: goto error;
74: } else if (strcasecmp(tmp, "none") == 0)
75: attr = 0;
76: else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) {
77: if ((val = attributes_fromstring(tmp + 2)) == -1)
78: goto error;
79: attr &= ~val;
80: } else {
81: if ((val = attributes_fromstring(tmp)) == -1)
82: goto error;
83: attr |= val;
84: }
85:
86: in += end + strspn(in + end, delimiters);
87: } while (*in != '\0');
88: gc->fg = fg;
89: gc->bg = bg;
90: gc->attr = attr;
91: gc->flags = flags;
92:
93: return (0);
94:
95: error:
96: memcpy(gc, &savedgc, sizeof *gc);
97: return (-1);
98: }
99:
100: /* Convert style to a string. */
101: const char *
102: style_tostring(struct grid_cell *gc)
103: {
104: int off = 0, comma = 0;
105: static char s[256];
106:
107: *s = '\0';
108:
109: if (gc->fg != 8) {
110: off += xsnprintf(s, sizeof s, "fg=%s", colour_tostring(gc->fg));
111: comma = 1;
112: }
113:
114: if (gc->bg != 8) {
115: off += xsnprintf(s + off, sizeof s - off, "%sbg=%s",
116: comma ? "," : "", colour_tostring(gc->bg));
117: comma = 1;
118: }
119:
120: if (gc->attr != 0 && gc->attr != GRID_ATTR_CHARSET) {
121: xsnprintf(s + off, sizeof s - off, "%s%s",
122: comma ? "," : "", attributes_tostring(gc->attr));
123: }
124:
125: if (*s == '\0')
126: return ("default");
127: return (s);
128: }
129:
130: /* Apply a style. */
131: void
132: style_apply(struct grid_cell *gc, struct options *oo, const char *name)
133: {
134: const struct grid_cell *gcp;
135:
136: memcpy(gc, &grid_default_cell, sizeof *gc);
137: gcp = options_get_style(oo, name);
138: gc->fg = gcp->fg;
139: gc->bg = gcp->bg;
140: gc->attr |= gcp->attr;
141: }
142:
143: /* Apply a style, updating if default. */
144: void
145: style_apply_update(struct grid_cell *gc, struct options *oo, const char *name)
146: {
147: const struct grid_cell *gcp;
148:
149: gcp = options_get_style(oo, name);
150: if (gcp->fg != 8)
151: gc->fg = gcp->fg;
152: if (gcp->bg != 8)
153: gc->bg = gcp->bg;
154: if (gcp->attr != 0)
155: gc->attr |= gcp->attr;
156: }
157:
158: /* Check if two styles are the same. */
159: int
160: style_equal(const struct grid_cell *gc1, const struct grid_cell *gc2)
161: {
162: return (gc1->fg == gc2->fg &&
163: gc1->bg == gc2->bg &&
164: (gc1->flags & ~GRID_FLAG_PADDING) ==
165: (gc2->flags & ~GRID_FLAG_PADDING) &&
166: (gc1->attr & ~GRID_ATTR_CHARSET) ==
167: (gc2->attr & ~GRID_ATTR_CHARSET));
168: }