diff options
Diffstat (limited to 'core/reference_registry.py')
| -rw-r--r-- | core/reference_registry.py | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/core/reference_registry.py b/core/reference_registry.py index b6fcd0f..7ab9649 100644 --- a/core/reference_registry.py +++ b/core/reference_registry.py @@ -20,7 +20,7 @@ hold such a reference and rewrites it. It expects a MainWindow instance reachable from. """ -from typing import Tuple +from typing import List, Tuple Ref = Tuple[str, str] @@ -72,3 +72,33 @@ def propagate_rename(app, old_ref: Ref, new_ref: Ref) -> None: win.refresh_derived() if hasattr(win, "refresh_devices"): win.refresh_devices() + + +def find_references(app, ref: Ref) -> List[str]: + """Reverse lookup: human-readable names of everything currently holding + a (device_id, channel_id) reference — same 5 subsystems propagate_rename() + walks, but collecting instead of rewriting. Used to flag a signal_id an + Apply & Reconnect just dropped (still referenced elsewhere = orphaned), + without blocking the reconnect itself — see devices_window/channels_window/ + control_panel "missing source" indicators, which do the live per-widget + check; this is only for a one-line summary breadcrumb.""" + found: List[str] = [] + + for dc in app.processor.get_derived(): + if ref in dc.sources: + found.append(f"Channel '{dc.name}'") + + chart = getattr(app, "_chart", None) + if chart is not None and chart._cfg is not None: + for pane in chart._cfg.panes: + for tr in pane.traces: + if (tr.device_id, tr.channel_id) == ref: + found.append(f"Plot '{pane.title}' trace '{tr.label or tr.channel_id}'") + + ctrl = getattr(app, "_ctrl", None) + if ctrl is not None: + for spec in ctrl.get_specs(): + if (spec.device_id, spec.channel_id) == ref: + found.append(f"Control '{spec.title}'") + + return found |