FilterReview: prompt to show estimated post-filter after recalculating filters

FilterReview/FilterReview.js

@@ -378,6 +378,7 @@ function reset() {
     document.getElementById("filter_version_1").checked = true
     document.getElementById("calculate").disabled = true
     document.getElementById("calculate_filters").disabled = true
+    document.getElementById("EstimateHint").hidden = true
     document.getElementById("OpenFilterTool").disabled = true
     document.getElementById("SaveParams").disabled = true
     document.getElementById("LoadParams").disabled = true
@@ -1833,6 +1834,55 @@ function update_hidden(source) {
 
     Plotly.redraw("FFTPlot")
 
+    // Hide estimate hint once any estimate is shown
+    if (!document.getElementById("EstimateHint").hidden) {
+        update_estimate_hint()
+    }
+
+}
+
+// Get estimated post filter checkboxes that can be selected
+function get_estimate_checkboxes() {
+    let ret = []
+    for (let i = 0; i < 3; i++) {
+        for (let j = 0; j < axis.length; j++) {
+            const checkbox = document.getElementById("Gyro" + i + "PostEst" + axis[j])
+            if (!checkbox.disabled) {
+                ret.push({ checkbox, gyro: i, axis: axis[j] })
+            }
+        }
+    }
+    return ret
+}
+
+// Prompt to show the estimated post filter lines if they are all hidden
+function update_estimate_hint() {
+    const estimates = get_estimate_checkboxes()
+    const hidden = (estimates.length > 0) && !estimates.some((estimate) => estimate.checkbox.checked)
+    document.getElementById("EstimateHint").hidden = !hidden
+}
+
+// Show estimated post filter lines for the axes that are shown, or all if none are shown
+function show_estimated() {
+    const estimates = get_estimate_checkboxes()
+    let shown = estimates.filter((estimate) => {
+        const pre = document.getElementById("Gyro" + estimate.gyro + "Pre" + estimate.axis)
+        const post = document.getElementById("Gyro" + estimate.gyro + "Post" + estimate.axis)
+        return pre.checked || post.checked
+    })
+    if (shown.length == 0) {
+        shown = estimates
+    }
+    for (const estimate of shown) {
+        estimate.checkbox.checked = true
+        update_hidden(estimate.checkbox)
+    }
+}
+
+// Recalculate after filter parameter change
+function recalculate_filters() {
+    re_calc()
+    update_estimate_hint()
 }
 
 function get_HNotch_param_names() {

FilterReview/index.html

@@ -445,18 +445,21 @@ <h2 style="text-align:center">Filter Configuration
     </fieldset>
 </td>
 <td>
-    <fieldset style="width:428px;height:70px">
+    <fieldset style="width:428px;min-height:70px">
     <legend>Setup
         <img id="TT" src="../images/question-circle.svg" style="width: 1em; vertical-align: bottom" 
         data-tippy-content='Recalculate filters after changing any parameters to update the estimated post filter spectrum. Save or load parameters to/from a param file.',
         data-tippy-maxWidth='750px'/>
     </legend>
     <p>
-        <input type="button" id="calculate_filters" value="Recalculate filters" onclick="loading_call(re_calc)">
+        <input type="button" id="calculate_filters" value="Recalculate filters" onclick="loading_call(recalculate_filters)">
         <input type="button" id="SaveParams" value="Save Parameters" onclick="save_parameters();">
         <button class="styleClass" id="LoadParams" onclick="document.getElementById('LoadParamsbase').click()">Load Parameters</button>
         <input type='file' id="LoadParamsbase" style="display:none" onchange="load_parameters(this.files[0]);">
     </p>
+    <p id="EstimateHint" style="margin-block-start: 0" hidden>
+        Estimated post-filter lines are hidden. <input type="button" value="Show estimated" onclick="show_estimated()">
+    </p>
     </fieldset>
 </td>
 </tr>