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-rw-r--r--colour.c42
1 files changed, 41 insertions, 1 deletions
diff --git a/colour.c b/colour.c
index a282d18..9bde646 100644
--- a/colour.c
+++ b/colour.c
@@ -960,6 +960,47 @@ colour_byname(const char *name)
return (-1);
}
+/* Parse colour from an X11 string. */
+int
+colour_parseX11(const char *p)
+{
+ double c, m, y, k = 0;
+ u_int r, g, b;
+ size_t len = strlen(p);
+ int colour = -1;
+ char *copy;
+
+ if ((len == 12 && sscanf(p, "rgb:%02x/%02x/%02x", &r, &g, &b) == 3) ||
+ (len == 7 && sscanf(p, "#%02x%02x%02x", &r, &g, &b) == 3) ||
+ sscanf(p, "%d,%d,%d", &r, &g, &b) == 3)
+ colour = colour_join_rgb(r, g, b);
+ else if ((len == 18 &&
+ sscanf(p, "rgb:%04x/%04x/%04x", &r, &g, &b) == 3) ||
+ (len == 13 && sscanf(p, "#%04x%04x%04x", &r, &g, &b) == 3))
+ colour = colour_join_rgb(r >> 8, g >> 8, b >> 8);
+ else if ((sscanf(p, "cmyk:%lf/%lf/%lf/%lf", &c, &m, &y, &k) == 4 ||
+ sscanf(p, "cmy:%lf/%lf/%lf", &c, &m, &y) == 3) &&
+ c >= 0 && c <= 1 && m >= 0 && m <= 1 &&
+ y >= 0 && y <= 1 && k >= 0 && k <= 1) {
+ colour = colour_join_rgb(
+ (1 - c) * (1 - k) * 255,
+ (1 - m) * (1 - k) * 255,
+ (1 - y) * (1 - k) * 255);
+ } else {
+ while (len != 0 && *p == ' ') {
+ p++;
+ len--;
+ }
+ while (len != 0 && p[len - 1] == ' ')
+ len--;
+ copy = xstrndup(p, len);
+ colour = colour_byname(copy);
+ free(copy);
+ }
+ log_debug("%s: %s = %s", __func__, p, colour_tostring(colour));
+ return (colour);
+}
+
/* Initialize palette. */
void
colour_palette_init(struct colour_palette *p)
@@ -1069,5 +1110,4 @@ colour_palette_from_option(struct colour_palette *p, struct options *oo)
}
a = options_array_next(a);
}
-
}