Fixed loading profiles data retention and display.

1 files changed, 18 insertions, 0 deletions

diff --git a/core/acquisition.py b/core/acquisition.py
index 79bdb79..f54f265 100644
--- a/core/acquisition.py
+++ b/core/acquisition.py
@@ -112,6 +112,24 @@ class AcquisitionEngine(QObject):
         for ch in dev.info.channels:
             self._last_units[(dev.info.device_id, ch.channel_id)] = ch.unit
 
+    def on_device_reconfigured(self, device_id: str):
+        """Reconcile buffers with a device's current channel list — reconfigure()
+        can add/remove channels (e.g. Signals count changed), and buffers keyed
+        by the old channel list would silently drop data for anything new."""
+        dev = next((d for d in self._devices if d.info.device_id == device_id), None)
+        if dev is None:
+            return
+        bufs = self._buffers.setdefault(device_id, {})
+        valid_ids = {ch.channel_id for ch in dev.info.channels}
+        for stale_id in [cid for cid in bufs if cid not in valid_ids]:
+            bufs.pop(stale_id, None)
+        for ch in dev.info.channels:
+            if ch.channel_id not in bufs:
+                bufs[ch.channel_id] = ChannelBuffer()
+            self._last_units[(device_id, ch.channel_id)] = ch.unit
+        for key in [k for k in self._last_units if k[0] == device_id and k[1] not in valid_ids]:
+            self._last_units.pop(key, None)
+
     def remove_device(self, device_id: str):
         self._devices = [d for d in self._devices if d.info.device_id != device_id]
         self._buffers.pop(device_id, None)