working version

python_app/gui/controllers/app_window_plot/trace_plot_mixin.py

@@ -7,6 +7,7 @@ import numpy as np
 import pyqtgraph as pg
 
 from python_app.models.dataset_model import ResultCollection, TraceData
+from python_app.models.run_config_model import parse_combos_from_text
 
 
 class AppWindowTracePlotMixin:
@@ -26,6 +27,24 @@ class AppWindowTracePlotMixin:
         y_max = float(self._pass_through_y_max_db.value())
         return bool(self._pass_through_fixed_y_enabled.isChecked()), min(y_min, y_max), max(y_min, y_max)
 
+    def _pass_through_combo_filter(self) -> set[tuple[int, int]] | None:
+        """Return selected pass-through switch combos, or `None` when all are visible."""
+        text = self._pass_through_combo_filter_input.text().strip()
+        if not text:
+            return None
+        try:
+            return {
+                (int(combo.input), int(combo.output))
+                for combo in parse_combos_from_text(text)
+            }
+        except Exception as exc:  # noqa: BLE001
+            self._log_warning(
+                "Invalid pass-through switch-combo filter.",
+                details=f"{exc}\nExpected format: input:output,input:output",
+                once_key=f"pass_through_combo_filter_invalid_{text}",
+            )
+            return set()
+
     def _configure_pass_through_magnitude_axis(self, plot: pg.PlotWidget) -> None:
         """Apply pass-through magnitude-axis autorange or fixed Y window."""
         fixed_y_enabled, y_min, y_max = self._pass_through_fixed_y_range()
@@ -91,6 +110,7 @@ class AppWindowTracePlotMixin:
         if not show_magnitude and not show_phase:
             self._clear_trace_plots()
             return False
+        combo_filter = self._pass_through_combo_filter()
 
         if show_magnitude:
             mag_item = magnitude_plot.getPlotItem()
@@ -133,6 +153,8 @@ class AppWindowTracePlotMixin:
         x_max = -np.inf
         for block in collection.blocks:
             combo_key = (int(block.combo.input_pos), int(block.combo.output_pos))
+            if combo_filter is not None and combo_key not in combo_filter:
+                continue
             if combo_key not in combo_colors:
                 combo_colors[combo_key] = palette[len(combo_colors) % len(palette)]
             color = combo_colors[combo_key]