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-rw-r--r--style.c318
1 files changed, 318 insertions, 0 deletions
diff --git a/style.c b/style.c
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+++ b/style.c
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+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
+ * Copyright (c) 2014 Tiago Cunha <tcunha@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "tmux.h"
+
+/* Mask for bits not included in style. */
+#define STYLE_ATTR_MASK (~0)
+
+/* Default style. */
+static struct style style_default = {
+ { { { ' ' }, 0, 1, 1 }, 0, 0, 8, 8, 0 },
+ 0,
+
+ 8,
+ STYLE_ALIGN_DEFAULT,
+ STYLE_LIST_OFF,
+
+ STYLE_RANGE_NONE, 0,
+
+ STYLE_DEFAULT_BASE
+};
+
+/*
+ * Parse an embedded style of the form "fg=colour,bg=colour,bright,...". Note
+ * that this adds onto the given style, so it must have been initialized
+ * already.
+ */
+int
+style_parse(struct style *sy, const struct grid_cell *base, const char *in)
+{
+ struct style saved;
+ const char delimiters[] = " ,\n", *cp;
+ char tmp[256], *found;
+ int value;
+ size_t end;
+
+ if (*in == '\0')
+ return (0);
+ style_copy(&saved, sy);
+
+ log_debug("%s: %s", __func__, in);
+ do {
+ while (*in != '\0' && strchr(delimiters, *in) != NULL)
+ in++;
+ if (*in == '\0')
+ break;
+
+ end = strcspn(in, delimiters);
+ if (end > (sizeof tmp) - 1)
+ goto error;
+ memcpy(tmp, in, end);
+ tmp[end] = '\0';
+
+ log_debug("%s: %s", __func__, tmp);
+ if (strcasecmp(tmp, "default") == 0) {
+ sy->gc.fg = base->fg;
+ sy->gc.bg = base->bg;
+ sy->gc.attr = base->attr;
+ sy->gc.flags = base->flags;
+ } else if (strcasecmp(tmp, "ignore") == 0)
+ sy->ignore = 1;
+ else if (strcasecmp(tmp, "noignore") == 0)
+ sy->ignore = 0;
+ else if (strcasecmp(tmp, "push-default") == 0)
+ sy->default_type = STYLE_DEFAULT_PUSH;
+ else if (strcasecmp(tmp, "pop-default") == 0)
+ sy->default_type = STYLE_DEFAULT_POP;
+ else if (strcasecmp(tmp, "nolist") == 0)
+ sy->list = STYLE_LIST_OFF;
+ else if (strncasecmp(tmp, "list=", 5) == 0) {
+ if (strcasecmp(tmp + 5, "on") == 0)
+ sy->list = STYLE_LIST_ON;
+ else if (strcasecmp(tmp + 5, "focus") == 0)
+ sy->list = STYLE_LIST_FOCUS;
+ else if (strcasecmp(tmp + 5, "left-marker") == 0)
+ sy->list = STYLE_LIST_LEFT_MARKER;
+ else if (strcasecmp(tmp + 5, "right-marker") == 0)
+ sy->list = STYLE_LIST_RIGHT_MARKER;
+ else
+ goto error;
+ } else if (strcasecmp(tmp, "norange") == 0) {
+ sy->range_type = style_default.range_type;
+ sy->range_argument = style_default.range_type;
+ } else if (end > 6 && strncasecmp(tmp, "range=", 6) == 0) {
+ found = strchr(tmp + 6, '|');
+ if (found != NULL) {
+ *found++ = '\0';
+ if (*found == '\0')
+ goto error;
+ for (cp = found; *cp != '\0'; cp++) {
+ if (!isdigit((u_char)*cp))
+ goto error;
+ }
+ }
+ if (strcasecmp(tmp + 6, "left") == 0) {
+ if (found != NULL)
+ goto error;
+ sy->range_type = STYLE_RANGE_LEFT;
+ sy->range_argument = 0;
+ } else if (strcasecmp(tmp + 6, "right") == 0) {
+ if (found != NULL)
+ goto error;
+ sy->range_type = STYLE_RANGE_RIGHT;
+ sy->range_argument = 0;
+ } else if (strcasecmp(tmp + 6, "window") == 0) {
+ if (found == NULL)
+ goto error;
+ sy->range_type = STYLE_RANGE_WINDOW;
+ sy->range_argument = atoi(found);
+ }
+ } else if (strcasecmp(tmp, "noalign") == 0)
+ sy->align = style_default.align;
+ else if (end > 6 && strncasecmp(tmp, "align=", 6) == 0) {
+ if (strcasecmp(tmp + 6, "left") == 0)
+ sy->align = STYLE_ALIGN_LEFT;
+ else if (strcasecmp(tmp + 6, "centre") == 0)
+ sy->align = STYLE_ALIGN_CENTRE;
+ else if (strcasecmp(tmp + 6, "right") == 0)
+ sy->align = STYLE_ALIGN_RIGHT;
+ else if (strcasecmp(tmp + 6, "absolute-centre") == 0)
+ sy->align = STYLE_ALIGN_ABSOLUTE_CENTRE;
+ else
+ goto error;
+ } else if (end > 5 && strncasecmp(tmp, "fill=", 5) == 0) {
+ if ((value = colour_fromstring(tmp + 5)) == -1)
+ goto error;
+ sy->fill = value;
+ } else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) {
+ if ((value = colour_fromstring(tmp + 3)) == -1)
+ goto error;
+ if (*in == 'f' || *in == 'F') {
+ if (value != 8)
+ sy->gc.fg = value;
+ else
+ sy->gc.fg = base->fg;
+ } else if (*in == 'b' || *in == 'B') {
+ if (value != 8)
+ sy->gc.bg = value;
+ else
+ sy->gc.bg = base->bg;
+ } else
+ goto error;
+ } else if (strcasecmp(tmp, "none") == 0)
+ sy->gc.attr = 0;
+ else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) {
+ if ((value = attributes_fromstring(tmp + 2)) == -1)
+ goto error;
+ sy->gc.attr &= ~value;
+ } else {
+ if ((value = attributes_fromstring(tmp)) == -1)
+ goto error;
+ sy->gc.attr |= value;
+ }
+
+ in += end + strspn(in + end, delimiters);
+ } while (*in != '\0');
+
+ return (0);
+
+error:
+ style_copy(sy, &saved);
+ return (-1);
+}
+
+/* Convert style to a string. */
+const char *
+style_tostring(struct style *sy)
+{
+ struct grid_cell *gc = &sy->gc;
+ int off = 0;
+ const char *comma = "", *tmp = "";
+ static char s[256];
+ char b[16];
+
+ *s = '\0';
+
+ if (sy->list != STYLE_LIST_OFF) {
+ if (sy->list == STYLE_LIST_ON)
+ tmp = "on";
+ else if (sy->list == STYLE_LIST_FOCUS)
+ tmp = "focus";
+ else if (sy->list == STYLE_LIST_LEFT_MARKER)
+ tmp = "left-marker";
+ else if (sy->list == STYLE_LIST_RIGHT_MARKER)
+ tmp = "right-marker";
+ off += xsnprintf(s + off, sizeof s - off, "%slist=%s", comma,
+ tmp);
+ comma = ",";
+ }
+ if (sy->range_type != STYLE_RANGE_NONE) {
+ if (sy->range_type == STYLE_RANGE_LEFT)
+ tmp = "left";
+ else if (sy->range_type == STYLE_RANGE_RIGHT)
+ tmp = "right";
+ else if (sy->range_type == STYLE_RANGE_WINDOW) {
+ snprintf(b, sizeof b, "window|%u", sy->range_argument);
+ tmp = b;
+ }
+ off += xsnprintf(s + off, sizeof s - off, "%srange=%s", comma,
+ tmp);
+ comma = ",";
+ }
+ if (sy->align != STYLE_ALIGN_DEFAULT) {
+ if (sy->align == STYLE_ALIGN_LEFT)
+ tmp = "left";
+ else if (sy->align == STYLE_ALIGN_CENTRE)
+ tmp = "centre";
+ else if (sy->align == STYLE_ALIGN_RIGHT)
+ tmp = "right";
+ else if (sy->align == STYLE_ALIGN_ABSOLUTE_CENTRE)
+ tmp = "absolute-centre";
+ off += xsnprintf(s + off, sizeof s - off, "%salign=%s", comma,
+ tmp);
+ comma = ",";
+ }
+ if (sy->default_type != STYLE_DEFAULT_BASE) {
+ if (sy->default_type == STYLE_DEFAULT_PUSH)
+ tmp = "push-default";
+ else if (sy->default_type == STYLE_DEFAULT_POP)
+ tmp = "pop-default";
+ off += xsnprintf(s + off, sizeof s - off, "%s%s", comma, tmp);
+ comma = ",";
+ }
+ if (sy->fill != 8) {
+ off += xsnprintf(s + off, sizeof s - off, "%sfill=%s", comma,
+ colour_tostring(sy->fill));
+ comma = ",";
+ }
+ if (gc->fg != 8) {
+ off += xsnprintf(s + off, sizeof s - off, "%sfg=%s", comma,
+ colour_tostring(gc->fg));
+ comma = ",";
+ }
+ if (gc->bg != 8) {
+ off += xsnprintf(s + off, sizeof s - off, "%sbg=%s", comma,
+ colour_tostring(gc->bg));
+ comma = ",";
+ }
+ if (gc->attr != 0) {
+ xsnprintf(s + off, sizeof s - off, "%s%s", comma,
+ attributes_tostring(gc->attr));
+ comma = ",";
+ }
+
+ if (*s == '\0')
+ return ("default");
+ return (s);
+}
+
+/* Apply a style on top of the given style. */
+void
+style_add(struct grid_cell *gc, struct options *oo, const char *name,
+ struct format_tree *ft)
+{
+ struct style *sy;
+ struct format_tree *ft0 = NULL;
+
+ if (ft == NULL)
+ ft = ft0 = format_create(NULL, NULL, 0, FORMAT_NOJOBS);
+
+ sy = options_string_to_style(oo, name, ft);
+ if (sy == NULL)
+ sy = &style_default;
+ if (sy->gc.fg != 8)
+ gc->fg = sy->gc.fg;
+ if (sy->gc.bg != 8)
+ gc->bg = sy->gc.bg;
+ gc->attr |= sy->gc.attr;
+
+ if (ft0 != NULL)
+ format_free(ft0);
+}
+
+/* Apply a style on top of the default style. */
+void
+style_apply(struct grid_cell *gc, struct options *oo, const char *name,
+ struct format_tree *ft)
+{
+ memcpy(gc, &grid_default_cell, sizeof *gc);
+ style_add(gc, oo, name, ft);
+}
+
+/* Initialize style from cell. */
+void
+style_set(struct style *sy, const struct grid_cell *gc)
+{
+ memcpy(sy, &style_default, sizeof *sy);
+ memcpy(&sy->gc, gc, sizeof sy->gc);
+}
+
+/* Copy style. */
+void
+style_copy(struct style *dst, struct style *src)
+{
+ memcpy(dst, src, sizeof *dst);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 16:26:35 +0000