fix: matrix gain

README.md

@@ -11,7 +11,10 @@ This template should help get you started developing with Tauri, React and Types
 - Check render to improve perfoormances
 - Check in meter if clip bool is limit instead
 - On close disconenct all ds^p
-- Ma-trix gain block sometimes
 - Q out of range
 
 - Check end to end behavioour
+
+504	27.139876100	192.168.49.83	192.168.49.30	TCP	67	2d	10020001052d31313131100328	31	31	31	56870 → 9761 [PSH, ACK] Seq=545 Ack=2312 Win=65408 Len=13
+1158	75.734957800	192.168.49.83	192.168.49.30	TCP	68	2d	10020001062d003131313110032b	00	31	31	50440 → 9761 [PSH, ACK] Seq=82 Ack=106 Win=65430 Len=14
+

src/components/ChoiceStepper/ChoiceStepper.tsx

@@ -12,6 +12,23 @@ const PENDING_FALLBACK_MS = 1000;
 
 type CommitResult = Promise<boolean | void> | boolean | void;
 
+function useNonPassiveWheel(
+  ref: React.RefObject<HTMLElement | null>,
+  handler: (e: WheelEvent) => void
+) {
+  const handlerRef = useRef(handler);
+  handlerRef.current = handler;
+
+  useEffect(() => {
+    const el = ref.current;
+    if (!el) return;
+
+    const listener = (e: WheelEvent) => handlerRef.current(e);
+    el.addEventListener('wheel', listener, { passive: false });
+    return () => el.removeEventListener('wheel', listener);
+  }, [ref]);
+}
+
 function StepperArrows({
   onUp,
   onDown,
@@ -80,6 +97,17 @@ function ChoiceStepperList<T>({
   const pendingValue = useRef<T | null>(null);
   const wheelTimeout = useRef<ReturnType<typeof setTimeout> | null>(null);
   const fallbackTimeout = useRef<ReturnType<typeof setTimeout> | null>(null);
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  useNonPassiveWheel(inputRef, (e) => {
+    e.preventDefault();
+
+    if (e.deltaY < 0 && canUp) {
+      stepWheel(1);
+    } else if (e.deltaY > 0 && canDown) {
+      stepWheel(-1);
+    }
+  });
 
   useEffect(() => {
     if (interacting.current) {
@@ -180,21 +208,13 @@ function ChoiceStepperList<T>({
   return (
     <div className={`choice-stepper ${className ?? ''}`} data-disabled={disabled || undefined}>
       <input
+        ref={inputRef}
         id={id}
         className="choice-stepper__input"
         value={text}
         disabled={disabled}
         onChange={(e) => setText(e.target.value)}
         onBlur={commitText}
-        onWheel={(e) => {
-          e.preventDefault();
-
-          if (e.deltaY < 0 && canUp) {
-            stepWheel(1);
-          } else if (e.deltaY > 0 && canDown) {
-            stepWheel(-1);
-          }
-        }}
         onKeyDown={(e) => {
           if (e.key === 'Enter') {
             e.currentTarget.blur();
@@ -256,6 +276,17 @@ function ChoiceStepperRange({
   const pendingValue = useRef<number | null>(null);
   const wheelTimeout = useRef<ReturnType<typeof setTimeout> | null>(null);
   const fallbackTimeout = useRef<ReturnType<typeof setTimeout> | null>(null);
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  useNonPassiveWheel(inputRef, (e) => {
+    e.preventDefault();
+
+    if (e.deltaY < 0 && canUp) {
+      stepWheel(1);
+    } else if (e.deltaY > 0 && canDown) {
+      stepWheel(-1);
+    }
+  });
 
   useEffect(() => {
     if (interacting.current) {
@@ -344,21 +375,13 @@ function ChoiceStepperRange({
   return (
     <div className={`choice-stepper ${className ?? ''}`} data-disabled={disabled || undefined}>
       <input
+        ref={inputRef}
         id={id}
         className="choice-stepper__input"
         value={text}
         disabled={disabled}
         onChange={(e) => setText(e.target.value)}
         onBlur={commitText}
-        onWheel={(e) => {
-          e.preventDefault();
-
-          if (e.deltaY < 0 && canUp) {
-            stepWheel(1);
-          } else if (e.deltaY > 0 && canDown) {
-            stepWheel(-1);
-          }
-        }}
         onKeyDown={(e) => {
           if (e.key === 'Enter') {
             e.currentTarget.blur();

src/components/SignalFlowMatrix/SignalFlowMatrix.tsx

@@ -92,6 +92,23 @@ function formatGainDb(value: number) {
   return `${sign}${value.toFixed(1)} dB`;
 }
 
+export function useNonPassiveWheel(
+  ref: React.RefObject<Element | null>,
+  handler: (e: WheelEvent) => void
+) {
+  const handlerRef = useRef(handler);
+  handlerRef.current = handler;
+
+  useEffect(() => {
+    const el = ref.current;
+    if (!el) return;
+
+    const listener = (e: Event) => handlerRef.current(e as WheelEvent);
+    el.addEventListener('wheel', listener, { passive: false });
+    return () => el.removeEventListener('wheel', listener);
+  }, [ref]);
+}
+
 type GainTooltipState = {
   visible: boolean;
   x: number;
@@ -104,11 +121,13 @@ function SignalFlowMatrix({
   setMatrixRouting,
   setMatrixGain,
   setActiveSidebar,
+  onGainPreview,
 }: {
   dsp: DSP408;
   setMatrixRouting: (output: OutputChannel, inputs: InputChannel[]) => Promise<boolean>;
   setMatrixGain: (input: InputChannel, output: OutputChannel, gain: number) => Promise<boolean>;
   setActiveSidebar: React.Dispatch<React.SetStateAction<SidebarId>>;
+  onGainPreview: (input: InputChannel, output: OutputChannel, value: number | null) => void;
 }) {
   const nInputs = INPUT_ORDER.length;
   const nOutputs = OUTPUT_ORDER.length;
@@ -137,9 +156,16 @@ function SignalFlowMatrix({
   });
   const hideTooltipTimer = useRef<ReturnType<typeof setTimeout> | null>(null);
 
+  const WHEEL_COMMIT_DELAY = 250;
+
+  // key = `${input}-${output}`
+  const pendingGains = useRef<Map<string, number>>(new Map());
+  const commitTimers = useRef<Map<string, ReturnType<typeof setTimeout>>>(new Map());
+
   useEffect(() => {
     return () => {
       if (hideTooltipTimer.current) clearTimeout(hideTooltipTimer.current);
+      commitTimers.current.forEach(clearTimeout);
     };
   }, []);
 
@@ -151,28 +177,55 @@ function SignalFlowMatrix({
     void setMatrixRouting(output, next);
   };
 
-  const handleWheelGain = (e: React.WheelEvent, output: OutputChannel, input: InputChannel) => {
+  const svgRef = useRef<SVGSVGElement>(null);
+
+  const handleWheelGain = (e: WheelEvent, output: OutputChannel, input: InputChannel) => {
     e.preventDefault();
-    const current = getGain(dsp, output, input);
+
+    const key = `${input}-${output}`;
+    // Base on the pending value if we're mid-wheel, otherwise the real state
+    const current = pendingGains.current.get(key) ?? getGain(dsp, output, input);
     const delta = e.deltaY < 0 ? MATRIX_GAIN_STEP : -MATRIX_GAIN_STEP;
     const next =
       Math.round(Math.min(MATRIX_GAIN_MAX, Math.max(MATRIX_GAIN_MIN, current + delta)) * 10) / 10;
-    void setMatrixGain(input, output, next);
 
-    // Show a small tooltip with the new gain value right next to the cursor,
+    pendingGains.current.set(key, next);
-    // then let it fade away shortly after wheeling stops.
+    onGainPreview(input, output, next);
+
+    // Debounced send: only the final value goes out once the wheel pauses
+    const existing = commitTimers.current.get(key);
+    if (existing) clearTimeout(existing);
+    commitTimers.current.set(
+      key,
+      setTimeout(async () => {
+        commitTimers.current.delete(key);
+        const value = pendingGains.current.get(key);
+        if (value === undefined) return;
+        await setMatrixGain(input, output, value);
+        // Only release if the user hasn't wheeled again while we were awaiting
+        if (pendingGains.current.get(key) === value) {
+          pendingGains.current.delete(key);
+          onGainPreview(input, output, null);
+        }
+      }, WHEEL_COMMIT_DELAY)
+    );
+
+    // Tooltip (unchanged, shows the pending value)
     if (hideTooltipTimer.current) clearTimeout(hideTooltipTimer.current);
-    setGainTooltip({
+    setGainTooltip({ visible: true, x: e.clientX, y: e.clientY, label: formatGainDb(next) });
-      visible: true,
-      x: e.clientX,
-      y: e.clientY,
-      label: formatGainDb(next),
-    });
     hideTooltipTimer.current = setTimeout(() => {
       setGainTooltip((t) => ({ ...t, visible: false }));
     }, GAIN_TOOLTIP_HOLD_MS);
   };
 
+  useNonPassiveWheel(svgRef, (e) => {
+    const hit = (e.target as Element).closest<SVGElement>('[data-wheel-route]');
+    if (!hit) return; // not over a connected line: let the page scroll normally
+    const { input, output } = hit.dataset;
+    if (!input || !output) return;
+    handleWheelGain(e, output as OutputChannel, input as InputChannel);
+  });
+
   const routePairs = useMemo(() => {
     const pairs: { input: InputChannel; output: OutputChannel; i: number; j: number }[] = [];
     OUTPUT_ORDER.forEach((output, j) => {
@@ -196,6 +249,7 @@ function SignalFlowMatrix({
   return (
     <div className="signal-flow">
       <svg
+        ref={svgRef}
         viewBox={`0 0 ${W} ${H}`}
         preserveAspectRatio="xMidYMid meet"
         className="signal-flow__svg"
@@ -221,7 +275,9 @@ function SignalFlowMatrix({
                 strokeWidth={LINE_HITBOX_WIDTH}
                 style={{ cursor: 'pointer' }}
                 onClick={() => handleToggle(output, input)}
-                onWheel={connected ? (e) => handleWheelGain(e, output, input) : undefined}
+                data-wheel-route={connected ? '' : undefined}
+                data-input={input}
+                data-output={output}
               />
               {/* Visible line, purely decorative — no pointer events, so it never
                   competes with the hitbox above for hover/click/wheel. */}

src/features/dsp408/components/Matrixsection/Matrixsection.tsx

@@ -13,6 +13,7 @@ import {
 } from '../../constants';
 import { SidebarId } from '../../constants';
 import SignalFlowMatrix from '../../../../components/SignalFlowMatrix/SignalFlowMatrix';
+import { useState } from 'react';
 import './Matrixsection.css';
 
 const GAIN_VALUES: number[] = (() => {
@@ -39,6 +40,12 @@ function getRoutedInputs(dsp: DSP, output: OutputChannel): InputChannel[] {
   return getMatrixRoutes(dsp, output).connected;
 }
 
+function snapToGain(g: number): number {
+  return GAIN_VALUES.reduce((best, v) =>
+    Math.abs(v - g) < Math.abs(best - g) ? v : best
+  );
+}
+
 function MatrixSection({
   dsp,
   setMatrixRouting,
@@ -68,6 +75,21 @@ function MatrixSection({
     void setMatrixGain(input, output, gain);
   };
 
+  const [liveGains, setLiveGains] = useState<Record<string, number>>({});
+
+  // value = number while wheeling, null once the commit is done
+  const previewGain = (input: InputChannel, output: OutputChannel, value: number | null) => {
+    const key = `${input}-${output}`;
+    setLiveGains((prev) => {
+      if (value === null) {
+        if (!(key in prev)) return prev;
+        const { [key]: _removed, ...rest } = prev;
+        return rest;
+      }
+      return { ...prev, [key]: value };
+    });
+  };
+
   return (
     <>
       <div className="matrix-flow">
@@ -76,6 +98,7 @@ function MatrixSection({
           setMatrixRouting={setMatrixRouting}
           setMatrixGain={setMatrixGain}
           setActiveSidebar={setActiveSidebar}
+          onGainPreview={previewGain}
         />
       </div>
       <div className="matrix-section">
@@ -90,7 +113,7 @@ function MatrixSection({
                 <div className="matrix-panel__rows">
                   {INPUT_ORDER.map((input) => {
                     const connected = isRouted(dsp, output, input);
-                    const gain = getLinkGain(dsp, output, input);
+                    const gain = liveGains[`${input}-${output}`] ?? getLinkGain(dsp, output, input);
 
                     return (
                       <div className="matrix-panel__row" key={String(input)}>
@@ -111,7 +134,7 @@ function MatrixSection({
 
                         <ChoiceStepper
                           className="matrix-gain-stepper"
-                          value={gain}
+                          value={snapToGain(gain)}
                           values={GAIN_VALUES}
                           formatLabel={(v: number) => `${v > 0 ? '+' : ''}${v.toFixed(1)} dB`}
                           onChange={(g) => handleGainChange(output, input, g)}