Fixed loading profiles data retention and display.

1 files changed, 4 insertions, 25 deletions

diff --git a/ui/windows/plot_window.py b/ui/windows/plot_window.py
index 119efab..dc1617b 100644
--- a/ui/windows/plot_window.py
+++ b/ui/windows/plot_window.py
@@ -1092,33 +1092,12 @@ class PlotWindow(QWidget):
                 QMessageBox.critical(self, "Import failed", str(e))
 
     def refresh_channels(self):
-        """Sync virtual channel panes then rebuild UI."""
-        existing = {
-            tr.channel_id
-            for p in self.cfg.panes
-            for tr in p.traces if tr.device_id == "derived"
-        }
+        """Drop panes whose sole trace is a deleted virtual channel, then rebuild UI.
+        Does NOT auto-add panes for new virtual channels — the operator adds those
+        explicitly via "+ Add Pane" / "+ Add Channel", so the plot layout only ever
+        shows what was deliberately built."""
         current_ids = {dc.channel_id for dc in self.processor.get_derived()}
 
-        # Add panes for new virtual channels
-        for dc in self.processor.get_derived():
-            if dc.channel_id not in existing:
-                new_idx = len(self.cfg.panes)
-                spec = PaneSpec(title=dc.name, y_label=dc.unit)
-                spec.traces.append(TraceSpec(
-                    device_id="derived", channel_id=dc.channel_id,
-                    label=dc.name, color=dc.color,
-                ))
-                self.cfg.panes.append(spec)
-                if self.cfg.tree is None:
-                    self.cfg.tree = {"kind": "leaf", "pane": 0}
-                else:
-                    self.cfg.tree = _tree_equalize_ratios({
-                        "kind": "vsplit", "ratio": 0.5,
-                        "first": self.cfg.tree,
-                        "second": {"kind": "leaf", "pane": new_idx},
-                    })
-
         # Remove panes whose sole trace is a deleted virtual channel
         removed = [
             i for i, p in enumerate(self.cfg.panes)