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1.2 ! nicm 1: /* $OpenBSD: style.c,v 1.1 2014/01/28 23:07:09 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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 <string.h>
21:
22: #include "tmux.h"
23:
24: /* Parse an embedded style of the form "fg=colour,bg=colour,bright,...". */
25: int
26: style_parse(const struct grid_cell *defgc, struct grid_cell *gc,
27: const char *in)
28: {
29: const char delimiters[] = " ,";
30: char tmp[32];
31: int val;
32: size_t end;
33: u_char fg, bg, attr, flags;
34:
35: if (*in == '\0')
36: return (0);
37: if (strchr(delimiters, in[strlen(in) - 1]) != NULL)
38: return (-1);
39:
40: fg = gc->fg;
41: bg = gc->bg;
42: attr = gc->attr;
43: flags = gc->flags;
44: do {
45: end = strcspn(in, delimiters);
46: if (end > (sizeof tmp) - 1)
47: return (-1);
48: memcpy(tmp, in, end);
49: tmp[end] = '\0';
50:
51: if (strcasecmp(tmp, "default") == 0) {
52: fg = defgc->fg;
53: bg = defgc->bg;
54: attr = defgc->attr;
55: flags &= ~(GRID_FLAG_FG256|GRID_FLAG_BG256);
56: flags |=
57: defgc->flags & (GRID_FLAG_FG256|GRID_FLAG_BG256);
58: } else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) {
59: if ((val = colour_fromstring(tmp + 3)) == -1)
60: return (-1);
61: if (*in == 'f' || *in == 'F') {
62: if (val != 8) {
63: if (val & 0x100) {
64: flags |= GRID_FLAG_FG256;
65: val &= ~0x100;
66: } else
67: flags &= ~GRID_FLAG_FG256;
68: fg = val;
69: } else {
70: fg = defgc->fg;
71: flags &= ~GRID_FLAG_FG256;
72: flags |= defgc->flags & GRID_FLAG_FG256;
73: }
74: } else if (*in == 'b' || *in == 'B') {
75: if (val != 8) {
76: if (val & 0x100) {
77: flags |= GRID_FLAG_BG256;
78: val &= ~0x100;
79: } else
80: flags &= ~GRID_FLAG_BG256;
81: bg = val;
82: } else {
83: bg = defgc->bg;
84: flags &= ~GRID_FLAG_BG256;
85: flags |= defgc->flags & GRID_FLAG_BG256;
86: }
87: } else
88: return (-1);
89: } else if (strcasecmp(tmp, "none") == 0)
90: attr = 0;
91: else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) {
92: if ((val = attributes_fromstring(tmp + 2)) == -1)
93: return (-1);
94: attr &= ~val;
95: } else {
96: if ((val = attributes_fromstring(tmp)) == -1)
97: return (-1);
98: attr |= val;
99: }
100:
101: in += end + strspn(in + end, delimiters);
102: } while (*in != '\0');
103: gc->fg = fg;
104: gc->bg = bg;
105: gc->attr = attr;
106: gc->flags = flags;
107:
108: return (0);
109: }
110:
111: /* Convert style to a string. */
112: const char *
113: style_tostring(struct grid_cell *gc)
114: {
115: int c, off = 0, comma = 0;
116: static char s[256];
117:
118: *s = '\0';
119:
120: if (gc->fg != 8) {
121: if (gc->flags & GRID_FLAG_FG256)
122: c = gc->fg | 0x100;
123: else
124: c = gc->fg;
125: off += xsnprintf(s, sizeof s, "fg=%s", colour_tostring(c));
126: comma = 1;
127: }
128:
129: if (gc->bg != 8) {
130: if (gc->flags & GRID_FLAG_BG256)
131: c = gc->bg | 0x100;
132: else
133: c = gc->bg;
134: off += xsnprintf(s + off, sizeof s - off, "%sbg=%s",
135: comma ? "," : "", colour_tostring(c));
136: comma = 1;
137: }
138:
139: if (gc->attr != 0 && gc->attr != GRID_ATTR_CHARSET) {
140: xsnprintf(s + off, sizeof s - off, "%s%s",
141: comma ? "," : "", attributes_tostring(gc->attr));
142: }
143:
144: if (*s == '\0')
145: return ("default");
146: return (s);
147: }
148:
149: /* Synchronize new -style option with the old one. */
150: void
151: style_update_new(struct options *oo, const char *name, const char *newname)
152: {
153: int value;
154: struct grid_cell *gc;
155:
156: /* It's a colour or attribute, but with no -style equivalent. */
157: if (newname == NULL)
158: return;
159:
160: gc = options_get_style(oo, newname);
161: value = options_get_number(oo, name);
162:
163: if (strstr(name, "-bg") != NULL)
164: colour_set_bg(gc, value);
165: else if (strstr(name, "-fg") != NULL)
166: colour_set_fg(gc, value);
167: else if (strstr(name, "-attr") != NULL)
168: gc->attr = value;
169: }
170:
171: /* Synchronize all the old options with the new -style one. */
172: void
173: style_update_old(struct options *oo, const char *name, struct grid_cell *gc)
174: {
175: char newname[128];
176: int c, size;
177:
178: size = strrchr(name, '-') - name;
179:
180: if (gc->flags & GRID_FLAG_BG256)
181: c = gc->bg | 0x100;
182: else
183: c = gc->bg;
184: xsnprintf(newname, sizeof newname, "%.*s-bg", size, name);
185: options_set_number(oo, newname, c);
186:
187: if (gc->flags & GRID_FLAG_FG256)
188: c = gc->fg | 0x100;
189: else
190: c = gc->fg;
191: xsnprintf(newname, sizeof newname, "%.*s-fg", size, name);
192: options_set_number(oo, newname, c);
193:
194: xsnprintf(newname, sizeof newname, "%.*s-attr", size, name);
195: options_set_number(oo, newname, gc->attr);
196: }
197:
198: /* Apply a style. */
199: void
200: style_apply(struct grid_cell *gc, struct options *oo, const char *name)
201: {
202: struct grid_cell *gcp;
203:
204: memcpy(gc, &grid_default_cell, sizeof *gc);
205: gcp = options_get_style(oo, name);
1.2 ! nicm 206: if (gcp->flags & GRID_FLAG_FG256)
! 207: colour_set_fg(gc, gcp->fg | 0x100);
! 208: else
! 209: colour_set_fg(gc, gcp->fg);
! 210: if (gcp->flags & GRID_FLAG_BG256)
! 211: colour_set_bg(gc, gcp->bg | 0x100);
! 212: else
! 213: colour_set_bg(gc, gcp->bg);
1.1 nicm 214: gc->attr |= gcp->attr;
215: }
216:
217: /* Apply a style, updating if default. */
218: void
219: style_apply_update(struct grid_cell *gc, struct options *oo, const char *name)
220: {
221: struct grid_cell *gcp;
222:
223: gcp = options_get_style(oo, name);
1.2 ! nicm 224: if (gcp->fg != 8) {
! 225: if (gcp->flags & GRID_FLAG_FG256)
! 226: colour_set_fg(gc, gcp->fg | 0x100);
! 227: else
! 228: colour_set_fg(gc, gcp->fg);
! 229: }
! 230: if (gcp->bg != 8) {
! 231: if (gcp->flags & GRID_FLAG_BG256)
! 232: colour_set_bg(gc, gcp->bg | 0x100);
! 233: else
! 234: colour_set_bg(gc, gcp->bg);
! 235: }
1.1 nicm 236: if (gcp->attr != 0)
237: gc->attr |= gcp->attr;
238: }