Added derived signal to be sources of other derived signals.

Fixed derived signal saving profile. Renamed Signals>Pipeline to Signas>Channels
 and adding/removing channels feature.

1 files changed, 27 insertions, 2 deletions

diff --git a/ui/main_window.py b/ui/main_window.py
index 1e863ee..ec0f39d 100644
--- a/ui/main_window.py
+++ b/ui/main_window.py
@@ -245,10 +245,33 @@ class MainWindow(QMainWindow):
 
     def _profile_new(self):
         """Reset to a blank slate."""
-        self._ctrl.clear_widgets()
+        # Clear devices
+        for dev in list(self.registry.all_instances()):
+            try:
+                dev.disconnect()
+            except Exception:
+                pass
+            self.registry.remove_instance(dev.info.device_id)
+            self.engine.remove_device(dev.info.device_id)
+
+        # Clear signal pipelines
+        self.processor._pipelines.clear()
+
         # Clear derived channels
-        for dc in self.processor.get_derived():
+        for dc in list(self.processor.get_derived()):
             self.processor.remove_derived(dc.channel_id)
+
+        # Clear controls
+        self._ctrl.clear_widgets()
+
+        # Refresh open windows
+        if self._win_devices:
+            self._win_devices.refresh()
+        if self._win_signals:
+            self._win_signals.refresh_derived()
+        if self._win_plot:
+            self._win_plot.refresh_channels()
+
         self._chart.refresh()
         self._status.setText("New profile — blank slate.")
 
@@ -280,6 +303,8 @@ class MainWindow(QMainWindow):
         # Refresh open windows
         if self._win_devices:
             self._win_devices.refresh()
+        if self._win_signals:
+            self._win_signals.refresh_derived()
         if self._win_plot:
             self._win_plot.refresh_channels()
         self._status.setText(f"Profile loaded: {profile.name}")