Auto commit Sat Mar 21 09:01:02 PM CDT 2026

app/src/main/java/com/mindmachine/mvp/session/TimelineEditorScreen.kt

@@ -14,10 +14,13 @@ import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.weight
+import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
@@ -264,9 +267,47 @@ internal fun TimelineGraph(
             (context as? android.app.Activity)?.window?.decorView?.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP)
         }
 
+        val yLabels = if (isVisual) {
+            listOf(
+                formatMsLabel(ParameterMapping.logMap01(1f, ParameterRanges.FLASH_INTERVAL_MS_MIN, ParameterRanges.FLASH_INTERVAL_MS_MAX)),
+                formatMsLabel(ParameterMapping.logMap01(0.5f, ParameterRanges.FLASH_INTERVAL_MS_MIN, ParameterRanges.FLASH_INTERVAL_MS_MAX)),
+                formatMsLabel(ParameterMapping.logMap01(0f, ParameterRanges.FLASH_INTERVAL_MS_MIN, ParameterRanges.FLASH_INTERVAL_MS_MAX)),
+            )
+        } else {
+            listOf(
+                formatHzLabel(ParameterMapping.logMap01(1f, ParameterRanges.CARRIER_HZ_MIN, ParameterRanges.CARRIER_HZ_MAX)),
+                formatHzLabel(ParameterMapping.logMap01(0.5f, ParameterRanges.CARRIER_HZ_MIN, ParameterRanges.CARRIER_HZ_MAX)),
+                formatHzLabel(ParameterMapping.logMap01(0f, ParameterRanges.CARRIER_HZ_MIN, ParameterRanges.CARRIER_HZ_MAX)),
+            )
+        }
+        val xStart = formatTimeLabel(viewport.startSec)
+        val xMid = formatTimeLabel(viewport.startSec + viewport.secondsPerScreen / 2f)
+        val xEnd = formatTimeLabel(viewport.startSec + viewport.secondsPerScreen)
+
+        Row(
+            modifier = Modifier.fillMaxWidth(),
+            horizontalArrangement = Arrangement.spacedBy(8.dp),
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            Column(
+                modifier = Modifier.height(190.dp).width(48.dp),
+                verticalArrangement = Arrangement.SpaceBetween,
+                horizontalAlignment = Alignment.End,
+            ) {
+                yLabels.forEach { label ->
+                    Text(
+                        text = label,
+                        color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.75f),
+                        style = MaterialTheme.typography.labelSmall,
+                        textAlign = TextAlign.End,
+                        modifier = Modifier.fillMaxWidth(),
+                    )
+                }
+            }
+
             Box(
                 modifier = Modifier
-                .fillMaxWidth()
+                    .weight(1f)
                     .height(190.dp)
                     .background(Color(0xFF0A0E18), RoundedCornerShape(10.dp))
                     .testTag("timeline_graph")
@@ -274,10 +315,10 @@ internal fun TimelineGraph(
                         awaitPointerEventScope {
                             while (true) {
                                 val down = awaitFirstDown(requireUnconsumed = false)
-                            val viewport = currentViewport
+                                var viewport = currentViewport
-                            val selection = currentSelection
+                                var selection = currentSelection
-                            val curveLeft = currentCurveLeft
+                                var curveLeft = currentCurveLeft
-                            val curveRight = currentCurveRight
+                                var curveRight = currentCurveRight
                                 val w = size.width.toFloat()
                                 val h = size.height.toFloat()
                                 val startX = viewport.timeToX(selection.startSec, w)
@@ -351,6 +392,7 @@ internal fun TimelineGraph(
                                             widthPx = size.width.toFloat(),
                                             centroidPx = centroid.x,
                                         )
+                                        viewport = newViewport
                                         currentOnViewportChanged(newViewport)
                                     }
                                     event.changes.forEach { it.consume() }
@@ -369,6 +411,7 @@ internal fun TimelineGraph(
                                 if (pointIndex != null && curveId != null) {
                                     val targetCurve = if (curveId == leftId) curveLeft else curveRight
                                     val updated = targetCurve.movePointVerticalWithPropagation(pointIndex, primary.position.y, h)
+                                    if (curveId == leftId) curveLeft = updated else curveRight = updated
                                     currentOnUpdateCurve(curveId, updated)
                                     onCurveEditedHaptic()
                                     primary.consume()
@@ -378,11 +421,15 @@ internal fun TimelineGraph(
                                 val t = viewport.xToTimeSec(primary.position.x, w).toInt().coerceAtLeast(0)
                                 when (dragMode) {
                                     HandleDrag.START -> {
-                                        currentOnSelectionChanged(TimelineSelection(startSec = min(t, selection.endSec - 60), endSec = selection.endSec))
+                                        val newSelection = TimelineSelection(startSec = min(t, selection.endSec - 60), endSec = selection.endSec)
+                                        selection = newSelection
+                                        currentOnSelectionChanged(newSelection)
                                         primary.consume()
                                     }
                                     HandleDrag.END -> {
-                                        currentOnSelectionChanged(TimelineSelection(startSec = selection.startSec, endSec = max(t, selection.startSec + 60)))
+                                        val newSelection = TimelineSelection(startSec = selection.startSec, endSec = max(t, selection.startSec + 60))
+                                        selection = newSelection
+                                        currentOnSelectionChanged(newSelection)
                                         primary.consume()
                                     }
                                     HandleDrag.NONE -> {
@@ -393,6 +440,7 @@ internal fun TimelineGraph(
                                                 widthPx = w,
                                                 centroidPx = w / 2f,
                                             )
+                                            viewport = newViewport
                                             currentOnViewportChanged(newViewport)
                                             primary.consume()
                                         }
@@ -436,6 +484,25 @@ internal fun TimelineGraph(
             }
         }
 
+            }
+        }
+
+        Row(
+            modifier = Modifier.fillMaxWidth().padding(top = 4.dp),
+            horizontalArrangement = Arrangement.spacedBy(8.dp),
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            Spacer(modifier = Modifier.width(48.dp))
+            Row(
+                modifier = Modifier.weight(1f),
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(xStart, color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.75f), style = MaterialTheme.typography.labelSmall)
+                Text(xMid, color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.75f), style = MaterialTheme.typography.labelSmall)
+                Text(xEnd, color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.75f), style = MaterialTheme.typography.labelSmall)
+            }
+        }
+
         Text(
             "One dot per minute • Drag selected curve dots up/down • Pinch zoom • Drag background pan • Drag handles to set range",
             color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.75f),
@@ -448,6 +515,25 @@ internal fun TimelineGraph(
     }
 }
 
+private fun formatTimeLabel(totalSec: Float): String {
+    val totalMinutes = (totalSec / 60f).toInt().coerceAtLeast(0)
+    val hours = totalMinutes / 60
+    val minutes = totalMinutes % 60
+    return if (hours > 0) {
+        if (minutes == 0) "${hours}h" else "${hours}h ${minutes}m"
+    } else {
+        "${minutes}m"
+    }
+}
+
+private fun formatMsLabel(value: Float): String = "${value.toInt()} ms"
+
+private fun formatHzLabel(value: Float): String = if (value >= 10f) {
+    "${value.toInt()} Hz"
+} else {
+    String.format("%.1f Hz", value)
+}
+
 private fun androidx.compose.ui.graphics.drawscope.DrawScope.drawGrid() {
     val stepX = size.width / 8f
     val stepY = size.height / 4f