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1.9 ! nicm 1: /* $OpenBSD: style.c,v 1.8 2015/09/14 11:34:50 nicm Exp $ */
1.1 nicm 2:
3: /*
1.9 ! nicm 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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: */
1.4 nicm 19:
20: #include <sys/types.h>
1.1 nicm 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: {
1.5 nicm 31: struct grid_cell savedgc;
32: const char delimiters[] = " ,";
33: char tmp[32];
34: int val;
35: size_t end;
36: u_char fg, bg, attr, flags;
1.1 nicm 37:
38: if (*in == '\0')
39: return (0);
40: if (strchr(delimiters, in[strlen(in) - 1]) != NULL)
41: return (-1);
1.5 nicm 42: memcpy(&savedgc, gc, sizeof savedgc);
1.1 nicm 43:
44: fg = gc->fg;
45: bg = gc->bg;
46: attr = gc->attr;
47: flags = gc->flags;
48: do {
49: end = strcspn(in, delimiters);
50: if (end > (sizeof tmp) - 1)
1.5 nicm 51: goto error;
1.1 nicm 52: memcpy(tmp, in, end);
53: tmp[end] = '\0';
54:
55: if (strcasecmp(tmp, "default") == 0) {
56: fg = defgc->fg;
57: bg = defgc->bg;
58: attr = defgc->attr;
59: flags &= ~(GRID_FLAG_FG256|GRID_FLAG_BG256);
60: flags |=
61: defgc->flags & (GRID_FLAG_FG256|GRID_FLAG_BG256);
62: } else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) {
63: if ((val = colour_fromstring(tmp + 3)) == -1)
1.5 nicm 64: goto error;
1.1 nicm 65: if (*in == 'f' || *in == 'F') {
66: if (val != 8) {
67: if (val & 0x100) {
68: flags |= GRID_FLAG_FG256;
69: val &= ~0x100;
70: } else
71: flags &= ~GRID_FLAG_FG256;
72: fg = val;
73: } else {
74: fg = defgc->fg;
75: flags &= ~GRID_FLAG_FG256;
76: flags |= defgc->flags & GRID_FLAG_FG256;
77: }
78: } else if (*in == 'b' || *in == 'B') {
79: if (val != 8) {
80: if (val & 0x100) {
81: flags |= GRID_FLAG_BG256;
82: val &= ~0x100;
83: } else
84: flags &= ~GRID_FLAG_BG256;
85: bg = val;
86: } else {
87: bg = defgc->bg;
88: flags &= ~GRID_FLAG_BG256;
89: flags |= defgc->flags & GRID_FLAG_BG256;
90: }
91: } else
1.5 nicm 92: goto error;
1.1 nicm 93: } else if (strcasecmp(tmp, "none") == 0)
94: attr = 0;
95: else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) {
96: if ((val = attributes_fromstring(tmp + 2)) == -1)
1.5 nicm 97: goto error;
1.1 nicm 98: attr &= ~val;
99: } else {
100: if ((val = attributes_fromstring(tmp)) == -1)
1.5 nicm 101: goto error;
1.1 nicm 102: attr |= val;
103: }
104:
105: in += end + strspn(in + end, delimiters);
106: } while (*in != '\0');
107: gc->fg = fg;
108: gc->bg = bg;
109: gc->attr = attr;
110: gc->flags = flags;
111:
112: return (0);
1.5 nicm 113:
114: error:
115: memcpy(gc, &savedgc, sizeof *gc);
116: return (-1);
1.1 nicm 117: }
118:
119: /* Convert style to a string. */
120: const char *
121: style_tostring(struct grid_cell *gc)
122: {
123: int c, off = 0, comma = 0;
124: static char s[256];
125:
126: *s = '\0';
127:
1.3 nicm 128: if (gc->fg != 8 || gc->flags & GRID_FLAG_FG256) {
1.1 nicm 129: if (gc->flags & GRID_FLAG_FG256)
130: c = gc->fg | 0x100;
131: else
132: c = gc->fg;
133: off += xsnprintf(s, sizeof s, "fg=%s", colour_tostring(c));
134: comma = 1;
135: }
136:
1.3 nicm 137: if (gc->bg != 8 || gc->flags & GRID_FLAG_BG256) {
1.1 nicm 138: if (gc->flags & GRID_FLAG_BG256)
139: c = gc->bg | 0x100;
140: else
141: c = gc->bg;
142: off += xsnprintf(s + off, sizeof s - off, "%sbg=%s",
143: comma ? "," : "", colour_tostring(c));
144: comma = 1;
145: }
146:
147: if (gc->attr != 0 && gc->attr != GRID_ATTR_CHARSET) {
148: xsnprintf(s + off, sizeof s - off, "%s%s",
149: comma ? "," : "", attributes_tostring(gc->attr));
150: }
151:
152: if (*s == '\0')
153: return ("default");
154: return (s);
155: }
156:
157: /* Synchronize new -style option with the old one. */
158: void
159: style_update_new(struct options *oo, const char *name, const char *newname)
160: {
161: int value;
162: struct grid_cell *gc;
1.6 nicm 163: struct options_entry *o;
1.1 nicm 164:
165: /* It's a colour or attribute, but with no -style equivalent. */
166: if (newname == NULL)
167: return;
168:
1.6 nicm 169: o = options_find1(oo, newname);
170: if (o == NULL)
1.7 nicm 171: o = options_set_style(oo, newname, "default", 0);
1.6 nicm 172: gc = &o->style;
173:
174: o = options_find1(oo, name);
175: if (o == NULL)
1.7 nicm 176: o = options_set_number(oo, name, 8);
1.6 nicm 177: value = o->num;
1.1 nicm 178:
179: if (strstr(name, "-bg") != NULL)
180: colour_set_bg(gc, value);
181: else if (strstr(name, "-fg") != NULL)
182: colour_set_fg(gc, value);
183: else if (strstr(name, "-attr") != NULL)
184: gc->attr = value;
185: }
186:
187: /* Synchronize all the old options with the new -style one. */
188: void
189: style_update_old(struct options *oo, const char *name, struct grid_cell *gc)
190: {
191: char newname[128];
192: int c, size;
193:
194: size = strrchr(name, '-') - name;
195:
196: if (gc->flags & GRID_FLAG_BG256)
197: c = gc->bg | 0x100;
198: else
199: c = gc->bg;
200: xsnprintf(newname, sizeof newname, "%.*s-bg", size, name);
201: options_set_number(oo, newname, c);
202:
203: if (gc->flags & GRID_FLAG_FG256)
204: c = gc->fg | 0x100;
205: else
206: c = gc->fg;
207: xsnprintf(newname, sizeof newname, "%.*s-fg", size, name);
208: options_set_number(oo, newname, c);
209:
210: xsnprintf(newname, sizeof newname, "%.*s-attr", size, name);
211: options_set_number(oo, newname, gc->attr);
212: }
213:
214: /* Apply a style. */
215: void
216: style_apply(struct grid_cell *gc, struct options *oo, const char *name)
217: {
218: struct grid_cell *gcp;
219:
220: memcpy(gc, &grid_default_cell, sizeof *gc);
221: gcp = options_get_style(oo, name);
1.2 nicm 222: if (gcp->flags & GRID_FLAG_FG256)
223: colour_set_fg(gc, gcp->fg | 0x100);
224: else
225: colour_set_fg(gc, gcp->fg);
226: if (gcp->flags & GRID_FLAG_BG256)
227: colour_set_bg(gc, gcp->bg | 0x100);
228: else
229: colour_set_bg(gc, gcp->bg);
1.1 nicm 230: gc->attr |= gcp->attr;
231: }
232:
233: /* Apply a style, updating if default. */
234: void
235: style_apply_update(struct grid_cell *gc, struct options *oo, const char *name)
236: {
237: struct grid_cell *gcp;
238:
239: gcp = options_get_style(oo, name);
1.3 nicm 240: if (gcp->fg != 8 || gcp->flags & GRID_FLAG_FG256) {
1.2 nicm 241: if (gcp->flags & GRID_FLAG_FG256)
242: colour_set_fg(gc, gcp->fg | 0x100);
243: else
244: colour_set_fg(gc, gcp->fg);
245: }
1.3 nicm 246: if (gcp->bg != 8 || gcp->flags & GRID_FLAG_BG256) {
1.2 nicm 247: if (gcp->flags & GRID_FLAG_BG256)
248: colour_set_bg(gc, gcp->bg | 0x100);
249: else
250: colour_set_bg(gc, gcp->bg);
251: }
1.1 nicm 252: if (gcp->attr != 0)
253: gc->attr |= gcp->attr;
1.8 nicm 254: }
255:
256: /* Check if two styles are the same. */
257: int
258: style_equal(const struct grid_cell *gc1, const struct grid_cell *gc2)
259: {
260: return gc1->fg == gc2->fg &&
261: gc1->bg == gc2->bg &&
262: (gc1->flags & ~GRID_FLAG_PADDING) ==
263: (gc2->flags & ~GRID_FLAG_PADDING) &&
264: (gc1->attr & ~GRID_ATTR_CHARSET) ==
265: (gc2->attr & ~GRID_ATTR_CHARSET);
1.1 nicm 266: }