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Allow replacing each of the many sets of separate foo-{fg,bg,attr}
options with a single foo-style option. For example:
set -g status-fg yellow
set -g status-bg red
set -g status-attr blink
Becomes:
set -g status-style fg=yellow,bg=red,blink
The -a flag to set can be used to add to rather than replace a style. So:
set -g status-bg red
Becomes:
set -ag status-style bg=red
Currently this is fully backwards compatible (all *-{fg,bg,attr} options
remain) but the plan is to deprecate them over time.
From Tiago Cunha.
This commit is contained in:
nicm
224
style.c
Normal file
224
style.c
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@@ -0,0 +1,224 @@
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/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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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 <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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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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u_char fg, bg, 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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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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return (-1);
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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 &= ~(GRID_FLAG_FG256|GRID_FLAG_BG256);
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flags |=
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defgc->flags & (GRID_FLAG_FG256|GRID_FLAG_BG256);
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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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return (-1);
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if (*in == 'f' || *in == 'F') {
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if (val != 8) {
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if (val & 0x100) {
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flags |= GRID_FLAG_FG256;
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val &= ~0x100;
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} else
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flags &= ~GRID_FLAG_FG256;
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fg = val;
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} else {
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fg = defgc->fg;
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flags &= ~GRID_FLAG_FG256;
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flags |= defgc->flags & GRID_FLAG_FG256;
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}
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} else if (*in == 'b' || *in == 'B') {
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if (val != 8) {
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if (val & 0x100) {
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flags |= GRID_FLAG_BG256;
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val &= ~0x100;
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} else
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flags &= ~GRID_FLAG_BG256;
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bg = val;
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} else {
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bg = defgc->bg;
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flags &= ~GRID_FLAG_BG256;
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flags |= defgc->flags & GRID_FLAG_BG256;
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}
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} else
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return (-1);
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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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return (-1);
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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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return (-1);
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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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}
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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 c, 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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if (gc->flags & GRID_FLAG_FG256)
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c = gc->fg | 0x100;
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else
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c = gc->fg;
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off += xsnprintf(s, sizeof s, "fg=%s", colour_tostring(c));
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comma = 1;
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}
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if (gc->bg != 8) {
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if (gc->flags & GRID_FLAG_BG256)
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c = gc->bg | 0x100;
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else
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c = gc->bg;
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off += xsnprintf(s + off, sizeof s - off, "%sbg=%s",
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comma ? "," : "", colour_tostring(c));
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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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/* 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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gc = options_get_style(oo, newname);
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value = options_get_number(oo, name);
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if (strstr(name, "-bg") != NULL)
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colour_set_bg(gc, value);
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else if (strstr(name, "-fg") != NULL)
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colour_set_fg(gc, 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 c, size;
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size = strrchr(name, '-') - name;
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if (gc->flags & GRID_FLAG_BG256)
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c = gc->bg | 0x100;
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else
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c = gc->bg;
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xsnprintf(newname, sizeof newname, "%.*s-bg", size, name);
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options_set_number(oo, newname, c);
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if (gc->flags & GRID_FLAG_FG256)
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c = gc->fg | 0x100;
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else
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c = gc->fg;
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xsnprintf(newname, sizeof newname, "%.*s-fg", size, name);
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options_set_number(oo, newname, c);
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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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colour_set_fg(gc, gcp->fg);
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colour_set_bg(gc, 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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colour_set_fg(gc, gcp->fg);
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if (gcp->bg != 8)
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colour_set_bg(gc, 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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