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/* $OpenBSD: style.c,v 1.10 2016/07/15 00:42:56 nicm Exp $ */ |
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/* |
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* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com> |
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* Copyright (c) 2014 Tiago Cunha <tcunha@users.sourceforge.net> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER |
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING |
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <sys/types.h> |
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#include <string.h> |
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#include "tmux.h" |
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/* Parse an embedded style of the form "fg=colour,bg=colour,bright,...". */ |
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int |
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style_parse(const struct grid_cell *defgc, struct grid_cell *gc, |
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const char *in) |
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{ |
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struct grid_cell savedgc; |
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const char delimiters[] = " ,"; |
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char tmp[32]; |
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int val; |
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size_t end; |
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int fg, bg; |
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u_char attr, flags; |
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if (*in == '\0') |
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return (0); |
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if (strchr(delimiters, in[strlen(in) - 1]) != NULL) |
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return (-1); |
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memcpy(&savedgc, gc, sizeof savedgc); |
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fg = gc->fg; |
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bg = gc->bg; |
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attr = gc->attr; |
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flags = gc->flags; |
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do { |
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end = strcspn(in, delimiters); |
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if (end > (sizeof tmp) - 1) |
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goto error; |
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memcpy(tmp, in, end); |
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tmp[end] = '\0'; |
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if (strcasecmp(tmp, "default") == 0) { |
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fg = defgc->fg; |
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bg = defgc->bg; |
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attr = defgc->attr; |
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flags = defgc->flags; |
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} else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) { |
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if ((val = colour_fromstring(tmp + 3)) == -1) |
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goto error; |
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if (*in == 'f' || *in == 'F') { |
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if (val != 8) |
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fg = val; |
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else |
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fg = defgc->fg; |
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} else if (*in == 'b' || *in == 'B') { |
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if (val != 8) |
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bg = val; |
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else |
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bg = defgc->bg; |
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} else |
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goto error; |
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} else if (strcasecmp(tmp, "none") == 0) |
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attr = 0; |
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else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) { |
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if ((val = attributes_fromstring(tmp + 2)) == -1) |
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goto error; |
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attr &= ~val; |
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} else { |
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if ((val = attributes_fromstring(tmp)) == -1) |
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goto error; |
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attr |= val; |
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} |
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in += end + strspn(in + end, delimiters); |
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} while (*in != '\0'); |
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gc->fg = fg; |
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gc->bg = bg; |
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gc->attr = attr; |
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gc->flags = flags; |
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return (0); |
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error: |
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memcpy(gc, &savedgc, sizeof *gc); |
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return (-1); |
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} |
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/* Convert style to a string. */ |
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const char * |
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style_tostring(struct grid_cell *gc) |
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{ |
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int off = 0, comma = 0; |
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static char s[256]; |
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*s = '\0'; |
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if (gc->fg != 8) { |
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off += xsnprintf(s, sizeof s, "fg=%s", colour_tostring(gc->fg)); |
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comma = 1; |
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} |
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if (gc->bg != 8) { |
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off += xsnprintf(s + off, sizeof s - off, "%sbg=%s", |
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comma ? "," : "", colour_tostring(gc->bg)); |
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comma = 1; |
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} |
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if (gc->attr != 0 && gc->attr != GRID_ATTR_CHARSET) { |
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xsnprintf(s + off, sizeof s - off, "%s%s", |
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comma ? "," : "", attributes_tostring(gc->attr)); |
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} |
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if (*s == '\0') |
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return ("default"); |
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return (s); |
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} |
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/* Synchronize new -style option with the old one. */ |
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void |
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style_update_new(struct options *oo, const char *name, const char *newname) |
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{ |
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int value; |
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struct grid_cell *gc; |
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struct options_entry *o; |
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/* It's a colour or attribute, but with no -style equivalent. */ |
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if (newname == NULL) |
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return; |
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o = options_find1(oo, newname); |
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if (o == NULL) |
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o = options_set_style(oo, newname, "default", 0); |
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gc = &o->style; |
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o = options_find1(oo, name); |
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if (o == NULL) |
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o = options_set_number(oo, name, 8); |
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value = o->num; |
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if (strstr(name, "-bg") != NULL) |
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gc->bg = value; |
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else if (strstr(name, "-fg") != NULL) |
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gc->fg = value; |
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else if (strstr(name, "-attr") != NULL) |
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gc->attr = value; |
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} |
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/* Synchronize all the old options with the new -style one. */ |
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void |
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style_update_old(struct options *oo, const char *name, struct grid_cell *gc) |
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{ |
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char newname[128]; |
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int size; |
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size = strrchr(name, '-') - name; |
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xsnprintf(newname, sizeof newname, "%.*s-bg", size, name); |
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options_set_number(oo, newname, gc->bg); |
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xsnprintf(newname, sizeof newname, "%.*s-fg", size, name); |
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options_set_number(oo, newname, gc->fg); |
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xsnprintf(newname, sizeof newname, "%.*s-attr", size, name); |
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options_set_number(oo, newname, gc->attr); |
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} |
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/* Apply a style. */ |
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void |
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style_apply(struct grid_cell *gc, struct options *oo, const char *name) |
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{ |
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struct grid_cell *gcp; |
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memcpy(gc, &grid_default_cell, sizeof *gc); |
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gcp = options_get_style(oo, name); |
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gc->fg = gcp->fg; |
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gc->bg = gcp->bg; |
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gc->attr |= gcp->attr; |
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} |
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/* Apply a style, updating if default. */ |
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void |
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style_apply_update(struct grid_cell *gc, struct options *oo, const char *name) |
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{ |
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struct grid_cell *gcp; |
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gcp = options_get_style(oo, name); |
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if (gcp->fg != 8) |
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gc->fg = gcp->fg; |
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if (gcp->bg != 8) |
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gc->bg = gcp->bg; |
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if (gcp->attr != 0) |
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gc->attr |= gcp->attr; |
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} |
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/* Check if two styles are the same. */ |
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int |
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style_equal(const struct grid_cell *gc1, const struct grid_cell *gc2) |
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{ |
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return (gc1->fg == gc2->fg && |
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gc1->bg == gc2->bg && |
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(gc1->flags & ~GRID_FLAG_PADDING) == |
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(gc2->flags & ~GRID_FLAG_PADDING) && |
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(gc1->attr & ~GRID_ATTR_CHARSET) == |
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(gc2->attr & ~GRID_ATTR_CHARSET)); |
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} |