From 1ab3c4995e44f44a845dce7b241554c0621527b9 Mon Sep 17 00:00:00 2001
From: David Vazgenovich Shakaryan <dvshakaryan@gmail.com>
Date: Tue, 3 May 2022 21:25:44 -0700
Subject: web: use generic JS function for updating opt elems

---
 web/web_opts.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

(limited to 'web/web_opts.c')

diff --git a/web/web_opts.c b/web/web_opts.c
index 0f37bba..945909f 100644
--- a/web/web_opts.c
+++ b/web/web_opts.c
@@ -3,6 +3,8 @@
 #include "comp.h"
 
 #include <math.h>
+#include <stdio.h>
+#include <string.h>
 
 #include <emscripten/emscripten.h>
 
@@ -11,8 +13,21 @@ int delay_ms = 1000;
 void opts_init()
 {
 	EM_ASM(readOpts());
-	EM_ASM({updateDelay($0)}, delay_ms);
-	EM_ASM({updateStdev($0)}, horizontal_stdev);
+
+	char buf[64];
+	sprintf(buf, "%d", delay_ms);
+	EM_ASM({elemSetValue($0, $1)}, "#delay", buf);
+
+	int len = sprintf(buf, "%4.2f", horizontal_stdev);
+	char *dot = strchr(buf, '.');
+	if (dot) {
+		for (char *ptr = buf + len - 1; ptr >= dot; --ptr) {
+			if (*ptr != '0' && *ptr != '.')
+				break;
+			*ptr = 0;
+		}
+	}
+	EM_ASM({elemSetValue($0, $1)}, "#stdev", buf);
 }
 
 EMSCRIPTEN_KEEPALIVE
-- 
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