[fix](trx-frontend): rework cw auto and tone picker behavior

Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>

src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js

@@ -2302,10 +2302,20 @@ function render(update) {
   if (cwToneEl && typeof update.cw_tone_hz === "number") {
     cwToneEl.value = update.cw_tone_hz;
   }
-  if (cwWpmEl && typeof update.cw_auto === "boolean") {
+  if ((cwWpmEl || cwToneEl) && typeof update.cw_auto === "boolean") {
     const disabled = update.cw_auto;
-    cwWpmEl.disabled = disabled;
+    if (typeof window.applyCwAutoUi === "function") {
-    cwWpmEl.readOnly = disabled;
+      window.applyCwAutoUi(disabled);
+    } else {
+      if (cwWpmEl) {
+        cwWpmEl.disabled = disabled;
+        cwWpmEl.readOnly = disabled;
+      }
+      if (cwToneEl) {
+        cwToneEl.disabled = disabled;
+        cwToneEl.readOnly = disabled;
+      }
+    }
   }
   let activeFreqColor = "var(--accent-green)";
   if (update.status && update.status.vfo && Array.isArray(update.status.vfo.entries)) {

src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html

@@ -554,13 +554,13 @@
           <div id="cw-signal-indicator" class="cw-signal-off"></div>
         </div>
         <div class="cw-config">
-          <label class="cw-auto-label">Auto WPM <input type="checkbox" id="cw-auto" checked /></label>
+          <label class="cw-auto-label">Auto WPM + Tone <input type="checkbox" id="cw-auto" checked /></label>
           <label>WPM <input type="number" id="cw-wpm" min="5" max="40" value="15" /></label>
           <label>Tone (Hz) <input type="number" id="cw-tone" min="300" max="1200" value="700" /></label>
         </div>
         <div class="cw-tone-picker">
           <div class="cw-tone-picker-head">
-            <span>CW Tone From Selected BW</span>
+            <span>CW Tone Picker</span>
             <small id="cw-tone-range">--</small>
           </div>
           <canvas id="cw-tone-waterfall" width="320" height="56" aria-label="CW tone selector"></canvas>

src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/cw.js

@@ -6,10 +6,15 @@ const cwWpmInput = document.getElementById("cw-wpm");
 const cwToneInput = document.getElementById("cw-tone");
 const cwSignalIndicator = document.getElementById("cw-signal-indicator");
 const cwToneCanvas = document.getElementById("cw-tone-waterfall");
+const cwTonePickerEl = document.querySelector(".cw-tone-picker");
 const cwToneRangeEl = document.getElementById("cw-tone-range");
 const CW_MAX_LINES = 200;
 const CW_TONE_MIN_HZ = 300;
 const CW_TONE_MAX_HZ = 1200;
+const CW_WPM_MIN = 5;
+const CW_WPM_MAX = 40;
+let cwLastAppendTime = 0;
+let cwTonePickerRaf = null;
 
 function applyCwAutoUi(enabled) {
   if (cwAutoInput) cwAutoInput.checked = enabled;
@@ -17,6 +22,20 @@ function applyCwAutoUi(enabled) {
     cwWpmInput.disabled = enabled;
     cwWpmInput.readOnly = enabled;
   }
+  if (cwToneInput) {
+    cwToneInput.disabled = enabled;
+    cwToneInput.readOnly = enabled;
+  }
+  if (cwTonePickerEl) {
+    cwTonePickerEl.classList.toggle("is-auto", enabled);
+  }
+}
+window.applyCwAutoUi = applyCwAutoUi;
+
+function clampCwWpm(wpm) {
+  const numeric = Number(wpm);
+  if (!Number.isFinite(numeric)) return 15;
+  return Math.round(Math.max(CW_WPM_MIN, Math.min(CW_WPM_MAX, numeric)));
 }
 
 function clampCwTone(tone) {
@@ -26,31 +45,56 @@ function clampCwTone(tone) {
 }
 
 function currentCwToneRange() {
-  const centerHz = Number.isFinite(window.lastFreqHz) ? Number(window.lastFreqHz) : Number.NaN;
+  const centerHz = Number.isFinite(window.lastFreqHz) ? Number(window.lastFreqHz) : NaN;
-  const bandwidthHz = Number.isFinite(window.currentBandwidthHz) ? Number(window.currentBandwidthHz) : Number.NaN;
+  const bandwidthHz = Number.isFinite(window.currentBandwidthHz) ? Number(window.currentBandwidthHz) : NaN;
   if (!Number.isFinite(centerHz) || !Number.isFinite(bandwidthHz) || bandwidthHz <= 0) {
     return null;
   }
   const mode = String(document.getElementById("mode")?.value || "").toUpperCase();
-  const lowerSideband = mode === "CWR" || mode === "LSB";
+  const lowerSideband = mode === "CWR";
-  const halfBwHz = bandwidthHz / 2;
+  const upperSideband = mode === "CW";
+  if (!lowerSideband && !upperSideband) return null;
+  const lowHz = lowerSideband ? centerHz - bandwidthHz : centerHz;
+  const highHz = lowerSideband ? centerHz : centerHz + bandwidthHz;
   const toneMinHz = CW_TONE_MIN_HZ;
-  const toneMaxHz = Math.max(toneMinHz, Math.min(CW_TONE_MAX_HZ, Math.round(halfBwHz)));
+  const toneMaxHz = Math.min(CW_TONE_MAX_HZ, Math.round(bandwidthHz));
   if (toneMaxHz < toneMinHz) {
     return null;
   }
   return {
-    lowHz: centerHz - halfBwHz,
+    lowHz,
-    highHz: centerHz + halfBwHz,
+    highHz,
     centerHz,
     bandwidthHz,
-    halfBwHz,
     toneMinHz,
     toneMaxHz,
     lowerSideband,
+    mode,
   };
 }
 
+function toneClampForRange(tone, range) {
+  const clamped = clampCwTone(tone);
+  if (!range) return clamped;
+  return Math.max(range.toneMinHz, Math.min(range.toneMaxHz, clamped));
+}
+
+function ensureCwToneCanvasResolution() {
+  if (!cwToneCanvas) return false;
+  const rect = cwToneCanvas.getBoundingClientRect();
+  const cssWidth = Math.max(1, Math.round(rect.width));
+  const cssHeight = Math.max(1, Math.round(rect.height));
+  const dpr = window.devicePixelRatio || 1;
+  const nextWidth = Math.max(1, Math.round(cssWidth * dpr));
+  const nextHeight = Math.max(1, Math.round(cssHeight * dpr));
+  if (cwToneCanvas.width !== nextWidth || cwToneCanvas.height !== nextHeight) {
+    cwToneCanvas.width = nextWidth;
+    cwToneCanvas.height = nextHeight;
+    return true;
+  }
+  return false;
+}
+
 function drawCwTonePicker() {
   if (!cwToneCanvas) return;
   const ctx = cwToneCanvas.getContext("2d");
@@ -62,14 +106,22 @@ function drawCwTonePicker() {
 
   const range = currentCwToneRange();
   if (!range || !window.lastSpectrumData || !Array.isArray(window.lastSpectrumData.bins) || !window.lastSpectrumData.bins.length) {
-    if (cwToneRangeEl) cwToneRangeEl.textContent = "Waiting for spectrum";
+    if (cwToneRangeEl) {
+      const mode = String(document.getElementById("mode")?.value || "").toUpperCase();
+      if (mode !== "CW" && mode !== "CWR") {
+        cwToneRangeEl.textContent = "CW/CWR mode required";
+      } else {
+        cwToneRangeEl.textContent = "Waiting for spectrum";
+      }
+    }
     ctx.fillStyle = "rgba(130, 150, 165, 0.22)";
     ctx.fillRect(0, 0, width, height);
     return;
   }
 
   if (cwToneRangeEl) {
-    cwToneRangeEl.textContent = `${(range.bandwidthHz / 1000).toFixed(range.bandwidthHz >= 10_000 ? 0 : 1)} kHz span`;
+    const side = range.lowerSideband ? "Lower side" : "Upper side";
+    cwToneRangeEl.textContent = `${side} · Tone ${range.toneMinHz}-${range.toneMaxHz} Hz`;
   }
 
   const bins = window.lastSpectrumData.bins;
@@ -99,7 +151,7 @@ function drawCwTonePicker() {
     ctx.fillRect(x, 0, 1, height);
   }
 
-  const currentTone = clampCwTone(cwToneInput ? cwToneInput.value : 700);
+  const currentTone = toneClampForRange(cwToneInput ? cwToneInput.value : 700, range);
   const markerHz = range.lowerSideband
     ? range.centerHz - currentTone
     : range.centerHz + currentTone;
@@ -108,14 +160,27 @@ function drawCwTonePicker() {
   ctx.fillStyle = "rgba(255, 255, 255, 0.9)";
   ctx.fillRect(markerX, 0, 2, height);
 
-  const centerFrac = (range.centerHz - range.lowHz) / Math.max(1, (range.highHz - range.lowHz));
+  const lowLimitHz = range.lowerSideband
-  const centerX = Math.max(0, Math.min(width - 1, Math.round(centerFrac * (width - 1))));
+    ? range.centerHz - range.toneMaxHz
+    : range.centerHz + range.toneMinHz;
+  const highLimitHz = range.lowerSideband
+    ? range.centerHz - range.toneMinHz
+    : range.centerHz + range.toneMaxHz;
+  const limitLowX = Math.max(0, Math.min(width - 1, Math.round(((lowLimitHz - range.lowHz) / Math.max(1, range.highHz - range.lowHz)) * (width - 1))));
+  const limitHighX = Math.max(0, Math.min(width - 1, Math.round(((highLimitHz - range.lowHz) / Math.max(1, range.highHz - range.lowHz)) * (width - 1))));
   ctx.fillStyle = "rgba(255, 255, 255, 0.22)";
-  ctx.fillRect(centerX, 0, 1, height);
+  ctx.fillRect(limitLowX, 0, 1, height);
+  ctx.fillRect(limitHighX, 0, 1, height);
+
+  if (cwAutoInput?.checked) {
+    ctx.fillStyle = "rgba(0, 0, 0, 0.22)";
+    ctx.fillRect(0, 0, width, height);
+  }
 }
 
 async function setCwTone(tone, { syncInput = true } = {}) {
-  const clamped = clampCwTone(tone);
+  const range = currentCwToneRange();
+  const clamped = toneClampForRange(tone, range);
   if (cwToneInput && syncInput) {
     cwToneInput.value = clamped;
   }
@@ -131,15 +196,19 @@ if (cwAutoInput) {
   cwAutoInput.addEventListener("change", async () => {
     const enabled = cwAutoInput.checked;
     applyCwAutoUi(enabled);
-    try { await postPath(`/set_cw_auto?enabled=${enabled ? "true" : "false"}`); }
+    try {
-    catch (e) { console.error("CW auto toggle failed", e); }
+      await postPath(`/set_cw_auto?enabled=${enabled ? "true" : "false"}`);
+      drawCwTonePicker();
+    } catch (e) {
+      console.error("CW auto toggle failed", e);
+    }
   });
 }
 
 if (cwWpmInput) {
   cwWpmInput.addEventListener("change", async () => {
     if (cwAutoInput && cwAutoInput.checked) return;
-    const wpm = Math.max(5, Math.min(40, Number(cwWpmInput.value)));
+    const wpm = clampCwWpm(cwWpmInput.value);
     cwWpmInput.value = wpm;
     try { await postPath(`/set_cw_wpm?wpm=${encodeURIComponent(wpm)}`); }
     catch (e) { console.error("CW WPM set failed", e); }
@@ -148,12 +217,14 @@ if (cwWpmInput) {
 
 if (cwToneInput) {
   cwToneInput.addEventListener("change", async () => {
+    if (cwAutoInput?.checked) return;
     await setCwTone(cwToneInput.value);
   });
 }
 
 if (cwToneCanvas) {
   cwToneCanvas.addEventListener("click", async (event) => {
+    if (cwAutoInput?.checked) return;
     const rect = cwToneCanvas.getBoundingClientRect();
     if (rect.width <= 0) return;
     const range = currentCwToneRange();
@@ -169,7 +240,7 @@ if (cwToneCanvas) {
 }
 
 window.resetCwHistoryView = function() {
-  cwOutputEl.innerHTML = "";
+  if (cwOutputEl) cwOutputEl.innerHTML = "";
   cwLastAppendTime = 0;
   drawCwTonePicker();
 };
@@ -184,10 +255,9 @@ document.getElementById("cw-clear-btn").addEventListener("click", async () => {
 });
 
 // --- Server-side CW decode handler ---
-let cwLastAppendTime = 0;
 window.onServerCw = function(evt) {
-  cwStatusEl.textContent = "Receiving";
+  if (cwStatusEl) cwStatusEl.textContent = "Receiving";
-  if (evt.text) {
+  if (evt.text && cwOutputEl) {
     // Append decoded text to output
     const now = Date.now();
     if (!cwOutputEl.lastElementChild || now - cwLastAppendTime > 10000 || evt.text === "\n") {
@@ -205,12 +275,28 @@ window.onServerCw = function(evt) {
     }
     cwOutputEl.scrollTop = cwOutputEl.scrollHeight;
   }
-  cwSignalIndicator.className = evt.signal_on ? "cw-signal-on" : "cw-signal-off";
+  if (cwSignalIndicator) {
-  if (!cwAutoInput || cwAutoInput.checked) {
+    cwSignalIndicator.className = evt.signal_on ? "cw-signal-on" : "cw-signal-off";
-    cwWpmInput.value = evt.wpm;
   }
-  drawCwTonePicker();
+  if (!cwAutoInput || cwAutoInput.checked) {
+    if (cwWpmInput && Number.isFinite(Number(evt.wpm))) {
+      cwWpmInput.value = clampCwWpm(evt.wpm);
+    }
+    if (cwToneInput && Number.isFinite(Number(evt.tone_hz))) {
+      cwToneInput.value = toneClampForRange(evt.tone_hz, currentCwToneRange());
+    }
+  }
+  if (cwTonePickerRaf != null) return;
+  cwTonePickerRaf = requestAnimationFrame(() => {
+    cwTonePickerRaf = null;
+    drawCwTonePicker();
+  });
 };
 
 window.refreshCwTonePicker = drawCwTonePicker;
+window.addEventListener("resize", () => {
+  if (ensureCwToneCanvasResolution()) drawCwTonePicker();
+});
+applyCwAutoUi(!!cwAutoInput?.checked);
+ensureCwToneCanvasResolution();
 drawCwTonePicker();

src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css

@@ -1739,8 +1739,10 @@ small { color: var(--text-muted); }
 .cw-config label { display: flex; flex-direction: column; gap: 0.2rem; color: var(--text-muted); font-size: 0.82rem; }
 .cw-config input[type="number"] { width: 5rem; padding: 0.3rem 0.4rem; font-size: 0.9rem; border: 1px solid var(--border-light); border-radius: 6px; background: var(--input-bg); color: var(--text); }
 .cw-tone-picker { margin-bottom: 0.75rem; border: 1px solid var(--border-light); border-radius: 8px; background: var(--input-bg); padding: 0.5rem 0.6rem; }
+.cw-tone-picker.is-auto { opacity: 0.82; }
 .cw-tone-picker-head { display: flex; align-items: baseline; justify-content: space-between; gap: 0.6rem; margin-bottom: 0.35rem; color: var(--text-muted); font-size: 0.78rem; }
 #cw-tone-waterfall { width: 100%; height: 56px; display: block; border-radius: 6px; background: linear-gradient(180deg, rgba(8, 14, 18, 0.92), rgba(18, 28, 36, 0.98)); cursor: crosshair; }
+.cw-tone-picker.is-auto #cw-tone-waterfall { cursor: not-allowed; }
 #cw-output { max-height: 360px; overflow-y: auto; border: 1px solid var(--border-light); border-radius: 6px; background: var(--input-bg); font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: 0.85rem; padding: 0.4rem 0.5rem; min-height: 60px; white-space: pre-wrap; word-break: break-all; }
 .cw-line { line-height: 1.5; }
 .cw-signal-on { width: 10px; height: 10px; border-radius: 50%; background: var(--accent-green); box-shadow: 0 0 6px var(--accent-green); flex-shrink: 0; }
@@ -1748,6 +1750,7 @@ small { color: var(--text-muted); }
 .cw-config .cw-auto-label { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.82rem; color: var(--text-muted); cursor: pointer; flex-direction: row; }
 .cw-auto-label input[type="checkbox"] { margin: 0; cursor: pointer; }
 .cw-config input[type="number"][readonly] { opacity: 0.6; }
+.cw-config input[type="number"]:disabled { opacity: 0.58; }
 
 button:focus-visible, input:focus-visible, select:focus-visible {
   outline: 2px solid var(--accent-green);