3.15.0

Automatically generated by python-semantic-release

CHANGELOG.md

@@ -1,6 +1,72 @@
 # CHANGELOG
 
 
+## v3.15.0 (2026-06-12)
+
+### Bug Fixes
+
+- **beamline-states**: Better pydantic model handling
+  ([`64cbf93`](https://github.com/bec-project/bec_widgets/commit/64cbf93d64895cc8af9522506512c4e8f5de939d))
+
+- **bec_widget**: Removal of non existing TYPE check for old dock area
+  ([`08650e8`](https://github.com/bec-project/bec_widgets/commit/08650e86a3d3aa1098514bad3d8119401ace1d3f))
+
+- **device-input**: Align validity styling
+  ([`6db198e`](https://github.com/bec-project/bec_widgets/commit/6db198e68422967c1c6d8ffb749b993e0e4975e1))
+
+- **notification-banner**: Eventfilter guard for QStandartItem
+  ([`d07d03c`](https://github.com/bec-project/bec_widgets/commit/d07d03c1be7b405e52126cfc507fdcd79093cb45))
+
+- **notification-center**: Sync light theme styling
+  ([`f78bc26`](https://github.com/bec-project/bec_widgets/commit/f78bc26a26bfebfc7df83a9c6cd7dd5c95a35d05))
+
+- **pydantic**: Adoption to new ScanArgument refactor from bec
+  ([`3dfed23`](https://github.com/bec-project/bec_widgets/commit/3dfed232efb8baff14ebe62b6b14e62e0a4acd36))
+
+- **widget_it**: Device/signal combobox handler
+  ([`434f9f5`](https://github.com/bec-project/bec_widgets/commit/434f9f561fca199aadc798db682a7e863a3246b3))
+
+### Build System
+
+- **bec**: Bump bec_lib and bec_ipython_client to v3.134
+  ([`9550866`](https://github.com/bec-project/bec_widgets/commit/9550866b677bb304ab0ea490827d0d0c09064722))
+
+### Features
+
+- **beamline-states**: Add state manager widget
+  ([`2546cc4`](https://github.com/bec-project/bec_widgets/commit/2546cc484d1c483fd45f1b80847a7e0200faba43))
+
+- **beamline-states**: Collapse all functionality with cleanup of not used settings widgets if state
+  is not dirty
+  ([`768c138`](https://github.com/bec-project/bec_widgets/commit/768c138576ad924dfad334888583131cc452e4f0))
+
+- **dock-area**: Expose beamline state manager
+  ([`6aa1f7e`](https://github.com/bec-project/bec_widgets/commit/6aa1f7e74ae4497d449b03e600e5c3fbbfc34be0))
+
+- **forms**: Add pydantic widget form
+  ([`b20897f`](https://github.com/bec-project/bec_widgets/commit/b20897f4bf2c05653e57bd79c5e292883d1f8ee8))
+
+- **forms**: Unified pydantic and scan control adapter for pydantic models
+  ([`563603b`](https://github.com/bec-project/bec_widgets/commit/563603b80e52ec6746a57fa68b1f7b2dbc101439))
+
+- **widget_io**: Register handler
+  ([`7e6dca4`](https://github.com/bec-project/bec_widgets/commit/7e6dca49120fba480a8756a0cb951b88a2df3584))
+
+### Refactoring
+
+- **beamline-states**: Beamlinestatemanager widget moved to separate module
+  ([`4bb7e81`](https://github.com/bec-project/bec_widgets/commit/4bb7e811dd514e69e9a507505b976c3b8de1d035))
+
+- **colors**: Consolidate theme helpers
+  ([`aca2c4a`](https://github.com/bec-project/bec_widgets/commit/aca2c4a7a50e85b0d0f61251f71bc097a258599f))
+
+- **main-window**: Remove status-tip override
+  ([`f6f590c`](https://github.com/bec-project/bec_widgets/commit/f6f590cabdfd66f4bb4f8095414db5d120b0f9a1))
+
+- **notification_banner**: Remove defensive patterns
+  ([`64ed28b`](https://github.com/bec-project/bec_widgets/commit/64ed28ba4f554958305cc9cf37da1a124ba2a99b))
+
+
 ## v3.14.0 (2026-06-11)
 
 ### Bug Fixes

bec_widgets/cli/client.py

@@ -32,6 +32,7 @@ _Widgets = {
     "BECQueue": "BECQueue",
     "BECShell": "BECShell",
     "BECStatusBox": "BECStatusBox",
+    "BeamlineStateManager": "BeamlineStateManager",
     "BecConsole": "BecConsole",
     "DapComboBox": "DapComboBox",
     "DeviceBrowser": "DeviceBrowser",
@@ -717,6 +718,58 @@ class BaseROI(RPCBase):
         """
 
 
+class BeamlineStateManager(RPCBase):
+    """Widget displaying and managing all BEC beamline states."""
+
+    _IMPORT_MODULE = "bec_widgets.widgets.services.beamline_states.beamline_state_manager"
+
+    @rpc_call
+    def clear_filters(self) -> "None":
+        """
+        None
+        """
+
+    @rpc_call
+    def collapse_all(self) -> "None":
+        """
+        Collapse the settings panel of all displayed state pills.
+        """
+
+    @rpc_call
+    def state_summary(self) -> "dict[str, dict[str, str]]":
+        """
+        Return all beamline states (including filtered ones) with their current status and label.
+
+        Returns:
+            dict: Mapping of state name to a dictionary with ``status`` and ``label`` keys.
+        """
+
+    @rpc_call
+    def remove(self):
+        """
+        Cleanup the BECConnector
+        """
+
+    @rpc_call
+    def attach(self):
+        """
+        None
+        """
+
+    @rpc_call
+    def detach(self):
+        """
+        Detach the widget from its parent dock widget (if widget is in the dock), making it a floating widget.
+        """
+
+    @rpc_timeout(None)
+    @rpc_call
+    def screenshot(self, file_name: "str | None" = None):
+        """
+        Take a screenshot of the dock area and save it to a file.
+        """
+
+
 class BecConsole(RPCBase):
     """A console widget with access to a shared registry of terminals, such that instances can be moved around."""
 

bec_widgets/cli/designer_plugins.py

@@ -19,6 +19,10 @@ designer_plugins = {
     "BECShell": ("bec_widgets.widgets.editors.bec_console.bec_console", "BECShell"),
     "BECSpinBox": ("bec_widgets.widgets.utility.spinbox.decimal_spinbox", "BECSpinBox"),
     "BECStatusBox": ("bec_widgets.widgets.services.bec_status_box.bec_status_box", "BECStatusBox"),
+    "BeamlineStateManager": (
+        "bec_widgets.widgets.services.beamline_states.beamline_state_manager",
+        "BeamlineStateManager",
+    ),
     "BecConsole": ("bec_widgets.widgets.editors.bec_console.bec_console", "BecConsole"),
     "ColorButton": ("bec_widgets.widgets.utility.visual.color_button.color_button", "ColorButton"),
     "ColorButtonNative": (
@@ -118,6 +122,7 @@ widget_icons = {
     "BECShell": "hub",
     "BECSpinBox": "123",
     "BECStatusBox": "widgets",
+    "BeamlineStateManager": "format_list_bulleted",
     "BecConsole": "terminal",
     "ColorButton": "colors",
     "ColorButtonNative": "colors",

bec_widgets/utils/bec_widget.py

@@ -20,7 +20,6 @@ from bec_widgets.widgets.utility.spinner.spinner import SpinnerWidget
 
 if TYPE_CHECKING:  # pragma: no cover
     from bec_widgets.utils.busy_loader import BusyLoaderOverlay
-    from bec_widgets.widgets.containers.dock import BECDock
 
 logger = bec_logger.logger
 

bec_widgets/utils/colors.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 import re
 from functools import lru_cache
-from typing import Literal
+from typing import Any, Literal
 
 import numpy as np
 import pyqtgraph as pg
@@ -21,8 +21,7 @@ logger = bec_logger.logger
 def get_theme_name():
     if QApplication.instance() is None or not hasattr(QApplication.instance(), "theme"):
         return "dark"
-    else:
-        return QApplication.instance().theme.theme
+    return QApplication.instance().theme.theme
 
 
 def get_theme_palette():
@@ -58,6 +57,25 @@ def apply_theme(theme: Literal["dark", "light"]):
     process_all_deferred_deletes(QApplication.instance())
 
 
+def theme_color(theme: Any | None, key: str, fallback: QColor | str) -> QColor:
+    """
+    Return a QColor from a BEC theme, or the fallback when no theme is set.
+    """
+
+    fallback_color = fallback if isinstance(fallback, QColor) else QColor(str(fallback))
+    if theme is None:
+        return fallback_color
+    return theme.color(key, fallback_color.name())
+
+
+def rgba(color: QColor | str, alpha: int) -> str:
+    """
+    Return a QSS-compatible rgba string.
+    """
+    qcolor = color if isinstance(color, QColor) else QColor(str(color))
+    return f"rgba({qcolor.red()}, {qcolor.green()}, {qcolor.blue()}, {alpha})"
+
+
 class Colors:
     @staticmethod
     def list_available_colormaps() -> list[str]:
@@ -150,25 +168,6 @@ class Colors:
 
         return ge.colorMap()
 
-    @staticmethod
-    def golden_ratio(num: int) -> list:
-        """Calculate the golden ratio for a given number of angles.
-
-        Args:
-            num (int): Number of angles
-
-        Returns:
-            list: List of angles calculated using the golden ratio.
-        """
-        phi = 2 * np.pi * ((1 + np.sqrt(5)) / 2)
-        angles = []
-        for ii in range(num):
-            x = np.cos(ii * phi)
-            y = np.sin(ii * phi)
-            angle = np.arctan2(y, x)
-            angles.append(angle)
-        return angles
-
     @staticmethod
     def set_theme_offset(theme: Literal["light", "dark"] | None = None, offset=0.2) -> tuple:
         """
@@ -239,20 +238,7 @@ class Colors:
         else:
             positions = np.linspace(min_pos, max_pos, num)
 
-        # Sample colors from the colormap at the calculated positions
-        colors = cmap.map(positions, mode="float")
-        color_list = []
-
-        for color in colors:
-            if format.upper() == "HEX":
-                color_list.append(QColor.fromRgbF(*color).name())
-            elif format.upper() == "RGB":
-                color_list.append(tuple((np.array(color) * 255).astype(int)))
-            elif format.upper() == "QCOLOR":
-                color_list.append(QColor.fromRgbF(*color))
-            else:
-                raise ValueError("Unsupported format. Please choose 'RGB', 'HEX', or 'QColor'.")
-        return color_list
+        return Colors._format_mapped_colors(cmap.map(positions, mode="float"), format)
 
     @staticmethod
     def golden_angle_color(
@@ -288,20 +274,19 @@ class Colors:
         positions = np.mod(np.arange(num) * golden_angle_conjugate, 1)
         positions = min_pos + positions * (max_pos - min_pos)
 
-        # Sample colors from the colormap at the calculated positions
-        colors = cmap.map(positions, mode="float")
-        color_list = []
+        return Colors._format_mapped_colors(cmap.map(positions, mode="float"), format)
 
-        for color in colors:
-            if format.upper() == "HEX":
-                color_list.append(QColor.fromRgbF(*color).name())
-            elif format.upper() == "RGB":
-                color_list.append(tuple((np.array(color) * 255).astype(int)))
-            elif format.upper() == "QCOLOR":
-                color_list.append(QColor.fromRgbF(*color))
-            else:
-                raise ValueError("Unsupported format. Please choose 'RGB', 'HEX', or 'QColor'.")
-        return color_list
+    @staticmethod
+    def _format_mapped_colors(colors: np.ndarray, format: Literal["QColor", "HEX", "RGB"]) -> list:
+        color_format = format.upper()
+        if color_format not in {"QCOLOR", "HEX", "RGB"}:
+            raise ValueError("Unsupported format. Please choose 'RGB', 'HEX', or 'QColor'.")
+
+        if color_format == "QCOLOR":
+            return [QColor.fromRgbF(*color) for color in colors]
+        if color_format == "HEX":
+            return [QColor.fromRgbF(*color).name() for color in colors]
+        return [tuple((np.array(color) * 255).astype(int)) for color in colors]
 
     @staticmethod
     def hex_to_rgba(hex_color: str, alpha=255) -> tuple:
@@ -325,22 +310,6 @@ class Colors:
             raise ValueError("HEX color must be 6 or 8 characters long.")
         return (r, g, b, alpha)
 
-    @staticmethod
-    def rgba_to_hex(r: int, g: int, b: int, a: int = 255) -> str:
-        """
-        Convert RGBA color to HEX.
-
-        Args:
-            r(int): Red value (0-255).
-            g(int): Green value (0-255).
-            b(int): Blue value (0-255).
-            a(int): Alpha value (0-255). Default is 255 (opaque).
-
-        Returns:
-            hec_color(str): HEX color string.
-        """
-        return "#{:02X}{:02X}{:02X}{:02X}".format(r, g, b, a)
-
     @staticmethod
     def validate_color(color: tuple | str) -> tuple | str:
         """

bec_widgets/utils/forms_from_types/pydantic_model_info_adapter.py

@@ -0,0 +1,53 @@
+from __future__ import annotations
+
+from collections.abc import Mapping
+from typing import Any
+
+from bec_lib.scan_args import ScanArgument
+from pydantic import BaseModel
+from pydantic_core import PydanticUndefined
+
+from bec_widgets.utils.scan_arg_metadata import ui_config_from_metadata
+
+NUMERIC_BOUND_KEYS = {"gt", "ge", "lt", "le"}
+
+
+def pydantic_model_input_configs(model: type[BaseModel]) -> list[dict[str, Any]]:
+    """Return scan-control-style field items for a Pydantic model."""
+    configs = []
+    for name, info in model.model_fields.items():
+        metadata: dict[str, Any] = {}
+        for entry in info.metadata:
+            if isinstance(entry, ScanArgument):
+                metadata.update(entry.model_dump(exclude_none=True))
+                continue
+            for key in NUMERIC_BOUND_KEYS:
+                value = getattr(entry, key, None)
+                if value is not None:
+                    metadata.setdefault(key, value)
+
+        if isinstance(info.json_schema_extra, Mapping):
+            metadata.update(dict(info.json_schema_extra))
+
+        if info.description and metadata.get("description") is None:
+            metadata["description"] = info.description
+
+        default: Any
+        if info.default is not PydanticUndefined:
+            default = info.default
+        elif info.default_factory is not None:
+            default = info.get_default(call_default_factory=True)
+        else:
+            default = None
+
+        display_name = metadata.get("display_name") or info.title
+        if display_name is None:
+            display_name = name.replace("_", " ").capitalize()
+
+        item = ui_config_from_metadata(
+            name=name, metadata=metadata, default=default, display_name=display_name
+        )
+        item.update({key: value for key, value in metadata.items() if key not in item})
+        configs.append(item)
+
+    return configs

bec_widgets/utils/forms_from_types/pydantic_widget_form.py

@@ -0,0 +1,815 @@
+from __future__ import annotations
+
+from types import NoneType
+from typing import Any, Literal, get_args, get_origin
+
+from bec_lib.device import DeviceBase, Signal
+from pydantic import BaseModel, ValidationError
+from pydantic.fields import FieldInfo
+from qtpy.QtCore import Qt
+from qtpy.QtCore import Signal as QtSignal
+from qtpy.QtWidgets import (
+    QCheckBox,
+    QComboBox,
+    QDoubleSpinBox,
+    QFormLayout,
+    QHBoxLayout,
+    QLineEdit,
+    QSpinBox,
+    QWidget,
+)
+
+from bec_widgets.utils.forms_from_types.pydantic_model_info_adapter import (
+    NUMERIC_BOUND_KEYS,
+    pydantic_model_input_configs,
+)
+from bec_widgets.utils.scan_arg_metadata import (
+    apply_numeric_limits,
+    apply_numeric_precision,
+    apply_unit_metadata,
+    device_units,
+)
+from bec_widgets.utils.widget_io import WidgetIO
+from bec_widgets.widgets.control.device_input.device_combobox.device_combobox import DeviceComboBox
+from bec_widgets.widgets.control.device_input.signal_combobox.signal_combobox import SignalComboBox
+from bec_widgets.widgets.utility.spinbox.decimal_spinbox import BECSpinBox
+
+
+class OptionalValueWidget(QWidget):
+    """Wrap a value widget with an enable checkbox for optional Pydantic fields.
+
+    Attributes:
+        value_changed: Signal emitted with the current value whenever the checkbox
+            state or wrapped widget value changes.
+    """
+
+    value_changed = QtSignal(object)
+
+    def __init__(self, value_widget: QWidget, parent: QWidget | None = None) -> None:
+        """Create an optional-value wrapper.
+
+        Args:
+            value_widget: Input widget used when the optional value is enabled.
+            parent: Optional parent widget.
+        """
+        super().__init__(parent=parent)
+        self._value_widget = value_widget
+        self._checkbox = QCheckBox(self)
+        self._checkbox.setToolTip("Enable value")
+        self._value_widget.setParent(self)
+
+        layout = QHBoxLayout(self)
+        layout.setContentsMargins(0, 0, 0, 0)
+        layout.setSpacing(8)
+        layout.addWidget(self._checkbox)
+        layout.addWidget(self._value_widget, 1)
+
+        self._checkbox.toggled.connect(self._on_enabled_changed)
+        WidgetIO.connect_widget_change_signal(self._value_widget, self._emit_current_value)
+        self._on_enabled_changed(False)
+
+    @property
+    def value_widget(self) -> QWidget:
+        """Return the wrapped input widget.
+
+        Returns:
+            The widget that edits the non-``None`` value.
+        """
+        return self._value_widget
+
+    @property
+    def checkbox(self) -> QCheckBox:
+        """Return the checkbox controlling whether the value is enabled.
+
+        Returns:
+            The enable checkbox.
+        """
+        return self._checkbox
+
+    def value(self) -> Any:
+        """Return the current optional value.
+
+        Returns:
+            ``None`` when the checkbox is unchecked; otherwise the wrapped widget value.
+        """
+        if not self._checkbox.isChecked():
+            return None
+        return WidgetIO.get_value(self._value_widget)
+
+    def set_value(self, value: Any) -> None:
+        """Set the optional value.
+
+        Args:
+            value: Value to set on the wrapped widget. ``None`` disables the value.
+        """
+        enabled = value is not None
+        self._checkbox.setChecked(enabled)
+        self._value_widget.setEnabled(enabled)
+        if enabled:
+            WidgetIO.set_value(self._value_widget, value)
+
+    def _on_enabled_changed(self, enabled: bool) -> None:
+        self._value_widget.setEnabled(enabled)
+        self.value_changed.emit(self.value())
+
+    def _emit_current_value(self, *_args) -> None:
+        self.value_changed.emit(self.value())
+
+
+class PydanticWidgetForm(QWidget):
+    """Generate a Qt form from a Pydantic model.
+
+    The form maps Pydantic field annotations to Qt widgets, applies supported
+    field metadata, and exposes typed and raw data accessors for the generated
+    fields.
+
+    Attributes:
+        changed: Signal emitted whenever a generated input widget changes.
+        validity_changed: Signal emitted by :meth:`validate` with the current
+            validation result.
+    """
+
+    changed = QtSignal()
+    validity_changed = QtSignal(bool)
+
+    def __init__(
+        self,
+        model: type[BaseModel],
+        parent: QWidget | None = None,
+        *,
+        data: BaseModel | dict[str, Any] | None = None,
+        read_only_fields: set[str] | None = None,
+        client=None,
+    ) -> None:
+        """Create a generated form for a Pydantic model.
+
+        Args:
+            model: Pydantic model class used to generate fields and validate data.
+            parent: Optional parent widget.
+            data: Optional initial model instance or raw field-value mapping.
+            read_only_fields: Field names that should be displayed but not editable.
+            client: Optional BEC client passed to domain-specific widgets such as
+                device and signal combo boxes.
+        """
+        super().__init__(parent=parent)
+        self._model = model
+        self._client = client
+        self._read_only_fields = set(read_only_fields or set())
+        self._widgets: dict[str, QWidget] = {}
+        self._field_configs: dict[str, dict[str, Any]] = {}
+        self._baseline: dict[str, Any] = {}
+
+        self._layout = QFormLayout()
+        self._layout.setContentsMargins(0, 0, 0, 0)
+        self._layout.setHorizontalSpacing(10)
+        self._layout.setVerticalSpacing(8)
+        self._layout.setFieldGrowthPolicy(QFormLayout.FieldGrowthPolicy.AllNonFixedFieldsGrow)
+        self._layout.setLabelAlignment(Qt.AlignmentFlag.AlignRight)
+        self.setLayout(self._layout)
+
+        self._populate()
+        if data is not None:
+            self.set_data(data)
+        self.mark_clean()
+
+    @property
+    def model(self) -> type[BaseModel]:
+        """Return the active Pydantic model class.
+
+        Returns:
+            The model class currently used by this form.
+        """
+        return self._model
+
+    @property
+    def widgets(self) -> dict[str, QWidget]:
+        """Return generated field widgets keyed by model field name.
+
+        Returns:
+            A shallow copy of the field-widget mapping. Optional fields return
+            their outer :class:`OptionalValueWidget`.
+        """
+        return dict(self._widgets)
+
+    def field_widget(self, name: str) -> QWidget:
+        """Return the generated widget for a field.
+
+        Args:
+            name: Model field name.
+
+        Returns:
+            The generated field widget. Optional fields return their outer
+            :class:`OptionalValueWidget`.
+
+        Raises:
+            KeyError: If no widget exists for ``name``.
+        """
+        return self._widgets[name]
+
+    def input_widget(self, name: str) -> QWidget:
+        """Return the direct input widget for a field.
+
+        Args:
+            name: Model field name.
+
+        Returns:
+            The editable input widget. Optional fields return the wrapped value
+            widget instead of the outer optional wrapper.
+
+        Raises:
+            KeyError: If no widget exists for ``name``.
+        """
+        widget = self._widgets[name]
+        if isinstance(widget, OptionalValueWidget):
+            return widget.value_widget
+        return widget
+
+    def input_widgets(self) -> dict[str, QWidget]:
+        """Return direct input widgets keyed by model field name.
+
+        Returns:
+            Mapping of field names to editable input widgets.
+        """
+        return {name: self.input_widget(name) for name in self._widgets}
+
+    def input_widgets_by_type(self, widget_type: type[QWidget]) -> list[QWidget]:
+        """Return direct input widgets matching a widget type.
+
+        Args:
+            widget_type: Qt widget class to match with ``isinstance``.
+
+        Returns:
+            List of input widgets matching ``widget_type``.
+        """
+        return [
+            widget for widget in self.input_widgets().values() if isinstance(widget, widget_type)
+        ]
+
+    def set_model(self, model: type[BaseModel], data: dict[str, Any] | None = None) -> None:
+        """Replace the active model and rebuild the form.
+
+        Args:
+            model: New Pydantic model class.
+            data: Optional initial data for the new model. When omitted, values
+                from fields shared with the previous model are preserved.
+        """
+        old_data = self.raw_data()
+        self.cleanup()
+        self._model = model
+        self._populate()
+        if data is None:
+            data = {key: value for key, value in old_data.items() if key in model.model_fields}
+        self.set_partial_data(data)
+        self.mark_clean()
+
+    def set_data(self, data: BaseModel | dict[str, Any]) -> None:
+        """Set form values from a model instance or mapping.
+
+        Args:
+            data: Pydantic model instance or raw field-value mapping.
+        """
+        values = data.model_dump() if isinstance(data, BaseModel) else dict(data)
+        self.set_partial_data(values)
+
+    def set_partial_data(self, data: dict[str, Any]) -> None:
+        """Set values for fields present in the form.
+
+        Unknown keys are ignored, which allows callers to pass larger model
+        dumps or backend payloads safely.
+
+        Args:
+            data: Field-value mapping to apply.
+        """
+        for name, value in data.items():
+            if name not in self._widgets:
+                continue
+            self._set_widget_value(name, value)
+        self._refresh_reference_units()
+        self.changed.emit()
+
+    def raw_data(self) -> dict[str, Any]:
+        """Return current widget values without Pydantic validation.
+
+        Returns:
+            Mapping of model field names to raw widget values.
+        """
+        return {name: self._read_widget_value(name) for name in self._widgets}
+
+    def get_data(self) -> dict[str, Any]:
+        """Return current data after Pydantic validation.
+
+        Returns:
+            Validated model data as a dictionary.
+
+        Raises:
+            ValidationError: If Pydantic validation fails.
+            ValueError: If domain widget validation fails.
+        """
+        return self.model_instance().model_dump()
+
+    def model_instance(self) -> BaseModel:
+        """Return the current values as a Pydantic model instance.
+
+        Returns:
+            Validated instance of the active model class.
+
+        Raises:
+            ValidationError: If Pydantic validation fails.
+            ValueError: If domain widget validation fails.
+        """
+        self._validate_domain_widgets()
+        return self._model.model_validate(self.raw_data())
+
+    def validate(self) -> bool:
+        """Validate the current form values.
+
+        Returns:
+            ``True`` when current values validate successfully, otherwise ``False``.
+        """
+        try:
+            self.get_data()
+        except (ValidationError, ValueError):
+            self.validity_changed.emit(False)
+            return False
+        self.validity_changed.emit(True)
+        return True
+
+    def dirty_fields(self) -> set[str]:
+        """Return fields whose raw values differ from the clean baseline.
+
+        Returns:
+            Set of dirty field names.
+        """
+        current = self.raw_data()
+        fields = set(current) | set(self._baseline)
+        return {field for field in fields if current.get(field) != self._baseline.get(field)}
+
+    def mark_clean(self) -> None:
+        """Store the current raw values as the clean baseline."""
+        self._baseline = self.raw_data()
+
+    def reset_to_baseline(self) -> None:
+        """Restore the form values to the current clean baseline."""
+        self.set_partial_data(self._baseline)
+
+    def editable_data(self) -> dict[str, Any]:
+        """Return validated data excluding read-only fields.
+
+        Returns:
+            Validated editable field values.
+
+        Raises:
+            ValidationError: If Pydantic validation fails.
+            ValueError: If domain widget validation fails.
+        """
+        return {
+            key: value
+            for key, value in self.get_data().items()
+            if key not in self._read_only_fields
+        }
+
+    def raw_editable_data(self) -> dict[str, Any]:
+        """Return raw widget data excluding read-only fields.
+
+        Returns:
+            Raw editable field values.
+        """
+        return {
+            key: value
+            for key, value in self.raw_data().items()
+            if key not in self._read_only_fields
+        }
+
+    def cleanup(self) -> None:
+        """Close and schedule deletion of all generated field widgets."""
+        while self._layout.rowCount():
+            row = self._layout.takeRow(0)
+            for item in (row.labelItem, row.fieldItem):
+                widget = item.widget() if item is not None else None
+                if widget is not None:
+                    widget.close()
+                    # Detach before deleteLater: a child pending deletion that still has a
+                    # signal connection into this form crashes if the form is garbage
+                    # collected before the deferred delete is processed.
+                    widget.setParent(None)
+                    widget.deleteLater()
+        self._widgets.clear()
+        self._field_configs.clear()
+
+    def closeEvent(self, event) -> None:  # noqa: N802
+        self.cleanup()
+        super().closeEvent(event)
+
+    def _populate(self) -> None:
+        for config in pydantic_model_input_configs(self._model):
+            name = config["name"]
+            info = self._model.model_fields[name]
+            widget = self._create_widget(name, info)
+            label_text = config["display_name"]
+            self._layout.addRow(label_text, widget)
+            label = self._layout.labelForField(widget)
+            if label is not None:
+                label.setProperty("_model_field_name", name)
+            if config.get("tooltip") and label is not None:
+                label.setToolTip(config["tooltip"])
+            widget.setEnabled(name not in self._read_only_fields)
+            self._widgets[name] = widget
+            self._field_configs[name] = config
+            self._set_widget_value(name, config["default"])
+            self._apply_field_metadata(name)
+            self._connect_widget(widget)
+
+        self._connect_device_signal_widgets()
+        self._connect_reference_unit_widgets()
+        self._refresh_reference_units()
+
+    def _create_widget(self, name: str, info: FieldInfo) -> QWidget:
+        annotation = info.annotation
+        args = get_args(annotation)
+        optional = NoneType in args
+        non_none_args = tuple(arg for arg in args if arg is not NoneType)
+        value_annotation = non_none_args[0] if len(non_none_args) == 1 else annotation
+
+        widget = self._create_value_widget(name, value_annotation)
+        numeric = value_annotation in (int, float) or any(
+            arg in (int, float) for arg in get_args(value_annotation)
+        )
+        if optional and (numeric or value_annotation is bool):
+            return OptionalValueWidget(widget, parent=self)
+        return widget
+
+    def _create_value_widget(self, name: str, annotation: Any) -> QWidget:
+        args = get_args(annotation)
+        if (
+            isinstance(annotation, type)
+            and issubclass(annotation, Signal)
+            or any(isinstance(arg, type) and issubclass(arg, Signal) for arg in args)
+        ):
+            return SignalComboBox(
+                parent=self,
+                client=self._client,
+                require_device=self._model_has_device_field(),
+                arg_name=name,
+            )
+        if (
+            isinstance(annotation, type)
+            and issubclass(annotation, DeviceBase)
+            or any(isinstance(arg, type) and issubclass(arg, DeviceBase) for arg in args)
+        ):
+            return DeviceComboBox(parent=self, client=self._client, arg_name=name)
+        if get_origin(annotation) is Literal:
+            widget = QComboBox(self)
+            widget.addItems([str(value) for value in get_args(annotation)])
+            return widget
+        if annotation is bool:
+            return QCheckBox(self)
+        if annotation is int:
+            spin_box = QSpinBox(self)
+            spin_box.setRange(-2147483647, 2147483647)
+            return spin_box
+        if annotation is float:
+            spin_box = BECSpinBox(self)
+            spin_box.setRange(-1_000_000_000, 1_000_000_000)
+            return spin_box
+        return QLineEdit(self)
+
+    def _apply_field_metadata(self, name: str) -> None:
+        config = self._field_configs[name]
+        field_widget = self._widgets[name]
+        input_widget = self.input_widget(name)
+
+        if config.get("precision") is not None:
+            apply_numeric_precision(input_widget, config)
+        if any(config.get(key) is not None for key in NUMERIC_BOUND_KEYS):
+            apply_numeric_limits(input_widget, config)
+
+        apply_unit_metadata(field_widget, config)
+        if input_widget is not field_widget:
+            apply_unit_metadata(input_widget, config)
+
+    def _connect_widget(self, widget: QWidget) -> None:
+        if isinstance(widget, OptionalValueWidget):
+            widget.value_changed.connect(lambda _value: self.changed.emit())
+            return
+        WidgetIO.connect_widget_change_signal(widget, lambda *_args: self.changed.emit())
+
+    def _connect_device_signal_widgets(self) -> None:
+        devices = [
+            widget for widget in self._widgets.values() if isinstance(widget, DeviceComboBox)
+        ]
+        signals = [
+            widget for widget in self._widgets.values() if isinstance(widget, SignalComboBox)
+        ]
+        if not devices or not signals:
+            return
+        device_widget = devices[0]
+        for signal_widget in signals:
+            device_widget.device_selected.connect(signal_widget.set_device)
+            device_widget.device_reset.connect(lambda w=signal_widget: w.set_device(None))
+            if device_widget.currentText().strip():
+                signal_widget.set_device(device_widget.currentText().strip())
+
+    def _connect_reference_unit_widgets(self) -> None:
+        for name, widget in self.input_widgets().items():
+            if not isinstance(widget, DeviceComboBox):
+                continue
+            widget.device_selected.connect(
+                lambda _device_name, field_name=name: self._update_reference_units(field_name)
+            )
+            widget.device_reset.connect(
+                lambda field_name=name: self._apply_reference_units(field_name, None)
+            )
+            widget.currentTextChanged.connect(
+                lambda text, field_name=name: self._handle_reference_device_text(field_name, text)
+            )
+
+    def _refresh_reference_units(self) -> None:
+        for name, widget in self.input_widgets().items():
+            if isinstance(widget, DeviceComboBox):
+                self._update_reference_units(name)
+
+    def _update_reference_units(self, source_name: str) -> None:
+        widget = self.input_widget(source_name)
+        if not isinstance(widget, DeviceComboBox) or not widget.is_valid_input:
+            self._apply_reference_units(source_name, None)
+            return
+        self._apply_reference_units(source_name, device_units(widget.get_current_device()))
+
+    def _apply_reference_units(self, source_name: str, units: str | None) -> None:
+        for field_name, config in self._field_configs.items():
+            if config.get("reference_units") != source_name:
+                continue
+            field_widget = self.field_widget(field_name)
+            input_widget = self.input_widget(field_name)
+            apply_unit_metadata(field_widget, config, units)
+            if input_widget is not field_widget:
+                apply_unit_metadata(input_widget, config, units)
+
+    def _handle_reference_device_text(self, source_name: str, device_name: str) -> None:
+        widget = self.input_widget(source_name)
+        if isinstance(widget, DeviceComboBox) and not widget.validate_device(device_name):
+            self._apply_reference_units(source_name, None)
+
+    def _validate_domain_widgets(self) -> None:
+        for widget in self._widgets.values():
+            if isinstance(widget, DeviceComboBox):
+                device = widget.currentText().strip()
+                if not device:
+                    raise ValueError("Device is required.")
+                if not widget.is_valid_input:
+                    raise ValueError(f"Device '{device}' is not available.")
+            if isinstance(widget, SignalComboBox):
+                signal = widget.get_signal_name().strip()
+                if signal and not widget.is_valid_input:
+                    raise ValueError(f"Signal '{signal}' is not available.")
+
+    def _read_widget_value(self, name: str) -> Any:
+        widget = self._widgets[name]
+        info = self._model.model_fields[name]
+        if isinstance(widget, OptionalValueWidget):
+            return widget.value()
+        if isinstance(widget, QLineEdit):
+            value = WidgetIO.get_value(widget)
+            return None if NoneType in get_args(info.annotation) and value == "" else value
+        if isinstance(widget, QComboBox) and get_origin(info.annotation) is Literal:
+            return WidgetIO.get_value(widget, as_string=True)
+        return WidgetIO.get_value(widget)
+
+    def _set_widget_value(self, name: str, value: Any) -> None:
+        widget = self._widgets[name]
+        if isinstance(widget, OptionalValueWidget):
+            widget.set_value(value)
+            return
+        if value is None:
+            if isinstance(widget, QLineEdit):
+                value = ""
+            elif isinstance(widget, QCheckBox):
+                value = False
+            elif isinstance(widget, (QSpinBox, QDoubleSpinBox)):
+                value = 0
+        WidgetIO.set_value(widget, value)
+
+    def _model_has_device_field(self) -> bool:
+        for field in self._model.model_fields.values():
+            annotation = field.annotation
+            args = get_args(annotation)
+            has_device = (
+                isinstance(annotation, type)
+                and issubclass(annotation, DeviceBase)
+                or any(isinstance(arg, type) and issubclass(arg, DeviceBase) for arg in args)
+            )
+            has_signal = (
+                isinstance(annotation, type)
+                and issubclass(annotation, Signal)
+                or any(isinstance(arg, type) and issubclass(arg, Signal) for arg in args)
+            )
+            if has_device and not has_signal:
+                return True
+        return False
+
+
+if __name__ == "__main__":  # pragma: no cover
+    import json
+    import sys
+
+    from bec_lib.scan_args import ScanArgument
+    from pydantic import Field
+    from qtpy.QtWidgets import QApplication, QLabel, QPushButton, QTabWidget, QTextEdit, QVBoxLayout
+
+    from bec_widgets.utils.colors import apply_theme
+
+    class BasicScanConfig(BaseModel):
+        """Plain Pydantic fields without GUI metadata."""
+
+        sample_name: str
+        enabled: bool = True
+        repeats: int = 3
+
+    class LimitConfig(BaseModel):
+        """Normal Pydantic Field metadata."""
+
+        mode: Literal["monitor", "scan", "calibration"] = "scan"
+        low_limit: (
+            float | None
+        )  # example of the field without additional metadata, still works in form
+        high_limit: float | None = Field(
+            default=10.0,
+            title="High limit",
+            description="Optional upper allowed value.",
+            json_schema_extra={"precision": 4},
+        )
+        tolerance: float = Field(
+            default=0.1,
+            title="Tolerance",
+            description="Warning tolerance around configured limits.",
+            json_schema_extra={"precision": 4},
+        )
+
+    class ScanArgumentConfig(BaseModel):
+        """ScanArgument metadata applied through Field extras."""
+
+        settling_time: float = Field(
+            default=0.0,
+            **ScanArgument(
+                display_name="Settling time",
+                description="Time to wait after moving.",
+                units="s",
+                precision=3,
+                ge=0,
+            ).model_dump(),
+        )
+        frames: int = Field(
+            default=1,
+            **ScanArgument(
+                display_name="Frames", description="Number of frames per trigger.", ge=1
+            ).model_dump(),
+        )
+
+    class DeviceSignalLimitsConfig(BaseModel):
+        """Device, signal, and numeric fields whose units follow the selected device."""
+
+        model_config = {"arbitrary_types_allowed": True}
+
+        device: DeviceBase | str = Field(
+            default="",
+            **ScanArgument(display_name="Device", description="Positioner device.").model_dump(),
+        )
+        signal: Signal | str | None = Field(
+            default=None,
+            **ScanArgument(display_name="Signal", description="Device signal.").model_dump(),
+        )
+        low_limit: float | None = Field(
+            default=None,
+            **ScanArgument(
+                display_name="Low limit",
+                description="Optional lower limit.",
+                reference_units="device",
+                precision=4,
+            ).model_dump(),
+        )
+        high_limit: float | None = Field(
+            default=None,
+            **ScanArgument(
+                display_name="High limit",
+                description="Optional upper limit.",
+                reference_units="device",
+                precision=4,
+            ).model_dump(),
+        )
+
+    class DisplayConfig(BaseModel):
+        title: str | None = Field(
+            default=None, title="Title", description="Optional display title."
+        )
+        show_grid: bool = Field(default=True, title="Show grid")
+        refresh_interval: int = Field(
+            default=1000, title="Refresh interval", description="Refresh interval in milliseconds."
+        )
+
+    class DeviceAndSignalConfig(BaseModel):
+        model_config = {"arbitrary_types_allowed": True}
+
+        title: str | None = Field(
+            default=None, title="Title", description="Optional display title."
+        )
+        device: DeviceBase | str = Field(
+            default="", title="Device", description="BEC device selection."
+        )
+        signal: Signal | str | None = Field(
+            default=None,
+            title="Signal",
+            description="Signal selection scoped to the selected device.",
+        )
+        refresh_interval: int = Field(
+            default=1000, title="Refresh interval", description="Refresh interval in milliseconds."
+        )
+
+    class DeviceOnlyConfig(BaseModel):
+        model_config = {"arbitrary_types_allowed": True}
+
+        title: str | None = Field(
+            default=None, title="Title", description="Optional display title."
+        )
+        device: DeviceBase | str = Field(
+            default="", title="Device", description="BEC device selection."
+        )
+        refresh_interval: int = Field(
+            default=1000, title="Refresh interval", description="Refresh interval in milliseconds."
+        )
+
+    class SignalOnlyConfig(BaseModel):
+        model_config = {"arbitrary_types_allowed": True}
+
+        title: str | None = Field(
+            default=None, title="Title", description="Optional display title."
+        )
+        signal: Signal | str | None = Field(
+            default=None,
+            title="Signal",
+            description="Global BEC signal selection without a device field.",
+        )
+        refresh_interval: int = Field(
+            default=1000, title="Refresh interval", description="Refresh interval in milliseconds."
+        )
+
+    class ExampleWindow(QWidget):
+        def __init__(self) -> None:
+            super().__init__()
+            self.setWindowTitle("PydanticWidgetForm example")
+
+            self._tabs = QTabWidget(self)
+            self._output = QTextEdit(self)
+            self._output.setReadOnly(True)
+            self._output.setPlaceholderText("Validated form data appears here.")
+            self._forms: list[PydanticWidgetForm] = []
+
+            self._add_form("Basic", PydanticWidgetForm(BasicScanConfig))
+            self._add_form("Limits", PydanticWidgetForm(LimitConfig))
+            self._add_form("ScanArgument", PydanticWidgetForm(ScanArgumentConfig))
+            self._add_form("Display", PydanticWidgetForm(DisplayConfig))
+            self._add_form("Device + signal", PydanticWidgetForm(DeviceAndSignalConfig))
+            self._add_form("Device limits", PydanticWidgetForm(DeviceSignalLimitsConfig))
+            self._add_form("Device only", PydanticWidgetForm(DeviceOnlyConfig))
+            self._add_form("Signal only", PydanticWidgetForm(SignalOnlyConfig))
+
+            show_data = QPushButton("Show current tab data", self)
+            show_data.clicked.connect(self._show_current_data)
+
+            layout = QVBoxLayout(self)
+            layout.addWidget(QLabel("Generated forms from Pydantic models", self))
+            layout.addWidget(self._tabs)
+            layout.addWidget(show_data)
+            layout.addWidget(self._output)
+
+        def _add_form(self, title: str, form: PydanticWidgetForm) -> None:
+            form.changed.connect(lambda _form=form: self._on_form_changed(_form))
+            self._forms.append(form)
+            self._tabs.addTab(form, title)
+
+        def _show_current_data(self, _checked: bool = False, *, validate: bool = True) -> None:
+            form = self._forms[self._tabs.currentIndex()]
+            if validate:
+                try:
+                    data = form.get_data()
+                except (ValidationError, ValueError) as exc:
+                    self._output.setPlainText(str(exc))
+                    return
+                key = "data"
+            else:
+                data = form.raw_data()
+                key = "raw_data"
+            self._output.setPlainText(
+                json.dumps(
+                    {key: data, "dirty_fields": sorted(form.dirty_fields())}, indent=2, default=str
+                )
+            )
+
+        def _on_form_changed(self, form: PydanticWidgetForm) -> None:
+            if form is self._forms[self._tabs.currentIndex()]:
+                self._show_current_data(validate=False)
+
+    app = QApplication(sys.argv)
+    apply_theme("dark")
+    window = ExampleWindow()
+    window.show()
+    sys.exit(app.exec())

bec_widgets/utils/scan_arg_metadata.py

@@ -0,0 +1,155 @@
+from __future__ import annotations
+
+import re
+from collections.abc import Mapping
+from typing import Any
+
+from bec_lib import bec_logger
+from qtpy.QtWidgets import QDoubleSpinBox, QSpinBox, QWidget
+
+logger = bec_logger.logger
+
+UNIT_TOOLTIP_PREFIXES = ("Units:", "Units from:")
+
+
+def format_display_name(name: str) -> str:
+    """Convert a raw argument name into a user-facing label."""
+    parts = re.split(r"(_|\d+)", name)
+    return " ".join(part.capitalize() for part in parts if part.isalnum()).strip()
+
+
+def resolve_tooltip(scan_argument: Mapping[str, Any]) -> str | None:
+    """Resolve explicit tooltip text, falling back to the description."""
+    return scan_argument.get("tooltip") or scan_argument.get("description")
+
+
+def ui_config_from_metadata(
+    name: str,
+    metadata: Mapping[str, Any],
+    *,
+    default: Any = None,
+    input_type: Any = None,
+    arg: bool = False,
+    display_name: str | None = None,
+) -> dict[str, Any]:
+    """Build the normalized scan-input item consumed by form widgets."""
+    return {
+        "arg": arg,
+        "name": name,
+        "type": input_type,
+        "display_name": display_name or metadata.get("display_name") or format_display_name(name),
+        "tooltip": resolve_tooltip(metadata),
+        "default": default,
+        "expert": metadata.get("expert", False),
+        "hidden": metadata.get("hidden", False),
+        "precision": metadata.get("precision"),
+        "units": metadata.get("units"),
+        "reference_units": metadata.get("reference_units"),
+        "reference_limits": metadata.get("reference_limits"),
+        "gt": metadata.get("gt"),
+        "ge": metadata.get("ge"),
+        "lt": metadata.get("lt"),
+        "le": metadata.get("le"),
+        "alternative_group": metadata.get("alternative_group"),
+    }
+
+
+def unit_tooltip(item: Mapping[str, Any], units: str | None = None) -> str | None:
+    """Build tooltip text from scan argument unit metadata."""
+    tooltip = item.get("tooltip")
+    reference_units = item.get("reference_units")
+    units = units or item.get("units")
+
+    tooltip_parts = [tooltip] if tooltip else []
+    if units:
+        tooltip_parts.append(f"Units: {units}")
+    elif reference_units:
+        tooltip_parts.append(f"Units from: {reference_units}")
+    if tooltip_parts:
+        return "\n".join(str(part) for part in tooltip_parts)
+    return None
+
+
+def strip_unit_tooltip(tooltip: str) -> str:
+    """Remove unit lines added by :func:`apply_unit_metadata`."""
+    return "\n".join(
+        line for line in tooltip.splitlines() if not line.startswith(UNIT_TOOLTIP_PREFIXES)
+    ).strip()
+
+
+def apply_unit_metadata(widget: QWidget, item: Mapping[str, Any], units: str | None = None) -> None:
+    """Apply unit tooltip text and numeric suffix metadata to a widget."""
+    units = units or item.get("units")
+    tooltip = unit_tooltip(item, units)
+    existing_tooltip = strip_unit_tooltip(widget.toolTip())
+    base_tooltip = item.get("tooltip")
+    if base_tooltip and existing_tooltip == base_tooltip:
+        existing_tooltip = ""
+
+    if tooltip:
+        widget.setToolTip(f"{existing_tooltip}\n{tooltip}" if existing_tooltip else tooltip)
+    else:
+        widget.setToolTip(existing_tooltip)
+
+    if hasattr(widget, "setSuffix"):
+        widget.setSuffix(f" {units}" if units else "")
+
+
+def device_units(device: object) -> str | None:
+    """Return engineering units from a BEC device object when available."""
+    egu = getattr(device, "egu", None)
+    if not callable(egu):
+        return None
+    try:
+        return egu()
+    except Exception:
+        logger.exception("Failed to fetch engineering units from device %s", device)
+        return None
+
+
+def apply_numeric_precision(widget: QWidget, item: Mapping[str, Any]) -> None:
+    """Apply decimal precision metadata to spinboxes supporting ``setDecimals``."""
+    if not hasattr(widget, "setDecimals"):
+        return
+
+    precision = item.get("precision")
+    if precision is None:
+        return
+
+    try:
+        widget.setDecimals(max(0, int(precision)))
+    except (TypeError, ValueError):
+        logger.warning(
+            "Ignoring invalid precision %r for parameter %s", precision, item.get("name")
+        )
+
+
+def apply_numeric_limits(widget: QWidget, item: Mapping[str, Any]) -> None:
+    """Apply ``gt/ge/lt/le`` numeric bounds to Qt spinboxes."""
+    if isinstance(widget, QSpinBox) and not isinstance(widget, QDoubleSpinBox):
+        minimum = -2147483647
+        maximum = 2147483647
+        if item.get("ge") is not None:
+            minimum = int(item["ge"])
+        if item.get("gt") is not None:
+            minimum = int(item["gt"]) + 1
+        if item.get("le") is not None:
+            maximum = int(item["le"])
+        if item.get("lt") is not None:
+            maximum = int(item["lt"]) - 1
+        widget.setRange(minimum, maximum)
+        return
+
+    if isinstance(widget, QDoubleSpinBox):
+        minimum = -float("inf")
+        maximum = float("inf")
+        step = 10 ** (-widget.decimals())
+        if item.get("ge") is not None:
+            minimum = float(item["ge"])
+        if item.get("gt") is not None:
+            minimum = float(item["gt"]) + step
+        if item.get("le") is not None:
+            maximum = float(item["le"])
+        if item.get("lt") is not None:
+            maximum = float(item["lt"]) - step
+        widget.setRange(minimum, maximum)

bec_widgets/utils/widget_io.py

@@ -99,6 +99,45 @@ class ComboBoxHandler(WidgetHandler):
         widget.currentIndexChanged.connect(lambda idx, w=widget: slot(w, self.get_value(w)))
 
 
+class DeviceComboBoxHandler(ComboBoxHandler):
+    """Handler for BEC device comboboxes. The widget value is the device name."""
+
+    def get_value(self, widget, **kwargs) -> str:
+        return widget.currentText().strip()
+
+    def set_value(self, widget, value: str | None) -> None:
+        device = "" if value is None else str(value)
+        if not device:
+            widget.setCurrentText("")
+            return
+        widget.set_device(device)
+        if widget.currentText() != device:
+            widget.setCurrentText(device)
+
+    def connect_change_signal(self, widget, slot):
+        widget.currentTextChanged.connect(lambda text, w=widget: slot(w, text.strip()))
+
+
+class SignalComboBoxHandler(ComboBoxHandler):
+    """Handler for BEC signal comboboxes. The widget value is the signal object name."""
+
+    def get_value(self, widget, **kwargs) -> str | None:
+        signal = widget.get_signal_name().strip()
+        return signal or None
+
+    def set_value(self, widget, value: str | None) -> None:
+        signal = "" if value is None else str(value)
+        if not signal:
+            widget.setCurrentText("")
+            return
+        widget.set_signal(signal)
+        if widget.currentText() != signal and widget.get_signal_name() != signal:
+            widget.setCurrentText(signal)
+
+    def connect_change_signal(self, widget, slot):
+        widget.currentTextChanged.connect(lambda _text, w=widget: slot(w, self.get_value(w)))
+
+
 class TableWidgetHandler(WidgetHandler):
     """Handler for QTableWidget widgets."""
 
@@ -207,6 +246,28 @@ class WidgetIO:
         ToggleSwitch: ToggleSwitchHandler,
         QSlider: SlideHandler,
     }
+    _deferred_handlers_registered = False
+
+    @classmethod
+    def _register_deferred_handlers(cls) -> None:
+        """
+        Register handlers for widgets that import this module themselves and therefore
+        cannot be imported here at module level without a circular import. The import is
+        deferred to the first handler lookup, when all modules are fully initialized.
+        """
+        if cls._deferred_handlers_registered:
+            return
+        cls._deferred_handlers_registered = True
+        # pylint: disable=import-outside-toplevel
+        from bec_widgets.widgets.control.device_input.device_combobox.device_combobox import (
+            DeviceComboBox,
+        )
+        from bec_widgets.widgets.control.device_input.signal_combobox.signal_combobox import (
+            SignalComboBox,
+        )
+
+        cls._handlers[DeviceComboBox] = DeviceComboBoxHandler
+        cls._handlers[SignalComboBox] = SignalComboBoxHandler
 
     @staticmethod
     def get_value(widget, ignore_errors=False, **kwargs):
@@ -282,6 +343,7 @@ class WidgetIO:
         Returns:
             handler_class: The handler class if found, otherwise None.
         """
+        WidgetIO._register_deferred_handlers()
         for base in type(widget).__mro__:
             if base in WidgetIO._handlers:
                 return WidgetIO._handlers[base]

bec_widgets/widgets/containers/dock_area/dock_area.py

@@ -385,6 +385,11 @@ class BECDockArea(DockAreaWidget):
             "bec_shell": (widget_icons["BECShell"], "Add BEC Shell", "BECShell"),
             "sbb_monitor": (widget_icons["SBBMonitor"], "Add SBB Monitor", "SBBMonitor"),
             "log_panel": (widget_icons["LogPanel"], "Add LogPanel", "LogPanel"),
+            "beamline_state_manager": (
+                widget_icons["BeamlineStateManager"],
+                "Add Beamline State Manager",
+                "BeamlineStateManager",
+            ),
         }
 
         # Create expandable menu actions (original behavior)

bec_widgets/widgets/containers/main_window/addons/notification_center/notification_banner.py

@@ -11,7 +11,6 @@ Intended for use in desktop applications to provide user feedback, warnings, and
 
 from __future__ import annotations
 
-import json
 import sys
 from datetime import datetime
 from enum import Enum
@@ -21,6 +20,7 @@ from uuid import uuid4
 import pyqtgraph as pg
 from bec_lib.alarm_handler import Alarms  # external enum
 from bec_lib.endpoints import MessageEndpoints
+from bec_lib.logger import bec_logger
 from bec_lib.messages import ErrorInfo
 from bec_qthemes import material_icon
 from qtpy import QtCore, QtGui, QtWidgets
@@ -29,9 +29,11 @@ from qtpy.QtWidgets import QApplication, QFrame, QMainWindow, QScrollArea, QWidg
 
 from bec_widgets import SafeProperty, SafeSlot
 from bec_widgets.utils.bec_connector import BECConnector
-from bec_widgets.utils.colors import apply_theme
+from bec_widgets.utils.colors import apply_theme, get_theme_name
 from bec_widgets.utils.widget_io import WidgetIO
 
+logger = bec_logger.logger
+
 
 class SeverityKind(str, Enum):
     INFO = "info"
@@ -148,11 +150,14 @@ class NotificationToast(QFrame):
         body_lbl.setWordWrap(True)
 
         self.time_lbl = QtWidgets.QLabel()
+        self._showing_absolute = False
         self._update_relative_time()
         # enable absolute timestamp on hover
         self.time_lbl.setCursor(QtCore.Qt.PointingHandCursor)
         self.time_lbl.installEventFilter(self)
-        self._showing_absolute = False
+
+        # shared ID assigned by NotificationCentre.add_notification
+        self.notification_id: str | None = None
 
         self.close_btn = QtWidgets.QPushButton("✕")
         self.close_btn.setObjectName("toastCloseBtn")
@@ -245,21 +250,22 @@ class NotificationToast(QFrame):
         # lifetime progress animation
         self._lifetime = max(0, lifetime_ms)  # 0 → never expire
         self._progress_anim: QtCore.QPropertyAnimation | None = None
+        # flag to indicate this toast has fully expired (progress bar finished)
+        self._expired = False
 
         if self._lifetime > 0:
             self._start_progress_animation()
         else:
             self.progress.hide()
 
-        # flag to indicate this toast has fully expired (progress bar finished)
-        self._expired = False
-
     # ------------------------------------------------------------------
     def _connect_to_theme_change(self):
         """Connect this toast to the global theme‑updated signal."""
         qapp = QApplication.instance()
-        if hasattr(qapp, "theme_signal"):
-            qapp.theme_signal.theme_updated.connect(self.apply_theme)
+        if hasattr(qapp, "theme"):
+            qapp.theme.theme_changed.connect(self.apply_theme)
+        else:
+            logger.warning("Theme could not be fetched form QApplication object.")
 
     # helper methods -----------------------------------------------------
     def _current_inner_width(self) -> int:
@@ -333,9 +339,6 @@ class NotificationToast(QFrame):
             }}
             """)
         self.apply_theme(self._theme)
-        # keep injected gradient in sync
-        if getattr(self, "_hg_enabled", False):
-            self._hg_cols[0] = self._accent_color
 
     @SafeProperty(str)
     def traceback(self):
@@ -354,11 +357,9 @@ class NotificationToast(QFrame):
         Args:
             theme(str | None): "light" or "dark". If None, auto-detects from QApplication.
         """
-        # determine effective theme
-        if theme is None:
-            app = QApplication.instance()
-            theme = getattr(getattr(app, "theme", None), "theme", "dark")
-        theme = theme.lower()
+        theme = str(theme or get_theme_name()).lower()
+        if theme not in {"light", "dark"}:
+            theme = "dark"
         self._theme = theme
         palette = DARK_PALETTE if theme == "dark" else LIGHT_PALETTE
 
@@ -403,11 +404,18 @@ class NotificationToast(QFrame):
             #NotificationToast QPushButton:hover {{ color: {btn_hover}; }}
             """)
         # traceback panel colours
-        trace_bg = "#1e1e1e" if theme == "dark" else "#f0f0f0"
+        if theme == "dark":  # FIXME Unify stylesheets and move them to BECQThemes issue #1189
+            trace_bg = "#1e1e1e"
+            trace_fg = palette["body"]
+            trace_border = "rgba(255,255,255,48)"
+        else:
+            trace_bg = "#ffffff"
+            trace_fg = palette["body"]
+            trace_border = "rgba(15,23,42,54)"
         self.trace_view.setStyleSheet(f"""
             background:{trace_bg};
-            color:{palette['body']};
-            border:none;
+            color:{trace_fg};
+            border: 1px solid {trace_border};
             border-radius:8px;
             """)
 
@@ -438,8 +446,8 @@ class NotificationToast(QFrame):
             }}
             """)
 
-        # stronger accent wash in light mode, slightly stronger in dark too
-        self._accent_alpha = 110 if theme == "light" else 60
+        self._accent_alpha = 6 if theme == "light" else 60
+        self._gradient_width_factor = 1.0 if theme == "light" else 0.70
         self.update()
 
     ########################################
@@ -447,7 +455,7 @@ class NotificationToast(QFrame):
     ########################################
 
     def _update_relative_time(self) -> None:
-        if getattr(self, "_showing_absolute", False):
+        if self._showing_absolute:
             return  # don't overwrite while user is viewing absolute time
         seconds = int((datetime.now() - self.created).total_seconds())
         if seconds < 10:
@@ -471,6 +479,8 @@ class NotificationToast(QFrame):
     # Event Filters
     ########################################
     def eventFilter(self, watched, event):
+        if not isinstance(event, QtCore.QEvent):
+            return False
         # timestamp label → toggle absolute time
         if watched is self.time_lbl:
             if event.type() == QtCore.QEvent.Enter and not self._showing_absolute:
@@ -486,7 +496,7 @@ class NotificationToast(QFrame):
         Pause the countdown while the cursor is over the toast, and reset the
         elapsed time and progress bar to full width.
         """
-        if getattr(self, "_expired", False):
+        if self._expired:
             return super().enterEvent(event)
         self._hover = True
         if self._progress_anim is not None:
@@ -500,10 +510,10 @@ class NotificationToast(QFrame):
         Resume the countdown when the cursor leaves, continuing from the
         paused progress rather than restarting.
         """
-        if getattr(self, "_expired", False):
+        if self._expired:
             return super().leaveEvent(event)
         self._hover = False
-        if self._lifetime > 0 and not self._expired:
+        if self._lifetime > 0:
             self._start_progress_animation()
         super().leaveEvent(event)
 
@@ -519,11 +529,11 @@ class NotificationToast(QFrame):
         painter.fillPath(path, self._base_color)
 
         # accent gradient, fades to transparent
-        grad = QtGui.QLinearGradient(0, 0, self.width() * 0.7, 0)
+        grad = QtGui.QLinearGradient(0, 0, self.width() * self._gradient_width_factor, 0)
         accent = QtGui.QColor(self._accent_color)
-        if getattr(self, "_theme", "dark") == "light":
+        if self._theme == "light":
             accent = accent.darker(115)
-        accent.setAlpha(getattr(self, "_accent_alpha", 50))
+        accent.setAlpha(self._accent_alpha)
         grad.setColorAt(0.0, accent)
         fade = QtGui.QColor(self._accent_color)
         fade.setAlpha(0)
@@ -543,7 +553,7 @@ class NotificationToast(QFrame):
 
     def close(self) -> None:
         self.closed.emit()
-        QtWidgets.QApplication.instance().removeEventFilter(self)
+        self.time_lbl.removeEventFilter(self)
         super().close()  # this will remove the widget from its parent
 
 
@@ -577,8 +587,7 @@ class NotificationCentre(QScrollArea):
     def __init__(self, parent=None, *, fixed_width: int = 420, margin: int = 16):
         super().__init__(parent=parent)
         self.setObjectName("NotificationCentre")
-        app = QApplication.instance()
-        self._theme = getattr(getattr(app, "theme", None), "theme", "dark").lower()
+        self._theme = get_theme_name()
 
         self.setWidgetResizable(True)
         # transparent background so only the toast cards are visible
@@ -673,8 +682,10 @@ class NotificationCentre(QScrollArea):
     def _connect_to_theme_change(self):
         """Connect to the theme change signal."""
         qapp = QApplication.instance()
-        if hasattr(qapp, "theme_signal"):
-            qapp.theme_signal.theme_updated.connect(self.apply_theme)
+        if hasattr(qapp, "theme"):
+            qapp.theme.theme_changed.connect(self.apply_theme)
+        else:
+            logger.warning("Theme could not be fetched form QApplication object.")
 
     #  public API
     def add_notification(
@@ -741,7 +752,7 @@ class NotificationCentre(QScrollArea):
     def remove_notification(self, notification_id: str) -> None:
         """Close a specific notification in this centre if present."""
         for toast in list(self.toasts):
-            if getattr(toast, "notification_id", None) == notification_id:
+            if toast.notification_id == notification_id:
                 self._hide_notification(toast)
 
     # ------------------------------------------------------------------
@@ -888,6 +899,8 @@ class NotificationCentre(QScrollArea):
         self.setFixedHeight(min(content_h, avail))
 
     def eventFilter(self, watched, event):
+        if not isinstance(event, QtCore.QEvent):
+            return False
         if watched is self.parent() and event.type() == QtCore.QEvent.Resize:
             self._adjust_height()
         return super().eventFilter(watched, event)

bec_widgets/widgets/containers/main_window/main_window.py

@@ -4,7 +4,7 @@ import os
 
 from bec_lib import bec_logger
 from bec_lib.endpoints import MessageEndpoints
-from qtpy.QtCore import QEvent, QSize, Qt, QTimer
+from qtpy.QtCore import QSize, Qt, QTimer
 from qtpy.QtGui import QAction, QActionGroup, QIcon
 from qtpy.QtWidgets import (
     QApplication,
@@ -417,11 +417,6 @@ class BECMainWindow(BECWidget, QMainWindow):
         """
         apply_theme(theme)  # emits theme_updated and applies palette globally
 
-    def event(self, event):
-        if event.type() == QEvent.Type.StatusTip:
-            return True
-        return super().event(event)
-
     def _show_widget_hierarchy_dialog(self):
         if self._widget_hierarchy_dialog is None:
             dialog = WidgetHierarchyDialog(root_widget=None, parent=self)

bec_widgets/widgets/control/device_input/device_combobox/device_combobox.py

@@ -603,8 +603,10 @@ class DeviceComboBox(BECWidget, QComboBox):
         return device.readout_priority in self.readout_filter
 
     def _update_validity_style(self, is_valid: bool) -> None:
-        border_color = "transparent" if is_valid or not self.isEnabled() else "red"
-        self.setStyleSheet(f"border: 1px solid {border_color};")
+        if is_valid or not self.isEnabled():
+            self.setStyleSheet("")
+            return
+        self.setStyleSheet("QComboBox { border: 1px solid red; }")
 
     def _filter_devices_by_signal_class(
         self, devices: list[Device | BECSignal | ComputedSignal | Positioner]

bec_widgets/widgets/control/device_input/signal_combobox/signal_combobox.py

@@ -626,8 +626,10 @@ class SignalComboBox(BECWidget, QComboBox):
         self.check_validity(self.currentText())
 
     def _update_validity_style(self, is_valid: bool) -> None:
-        border_color = "transparent" if is_valid or not self.isEnabled() else "red"
-        self.setStyleSheet(f"border: 1px solid {border_color};")
+        if is_valid or not self.isEnabled():
+            self.setStyleSheet("")
+            return
+        self.setStyleSheet("QComboBox { border: 1px solid red; }")
 
     def _replace_signal_items(self, items: list[str | tuple[str, dict]] | None = None):
         combo_items = self._signals if items is None else items

bec_widgets/widgets/control/scan_control/scan_group_box.py

@@ -20,6 +20,12 @@ from qtpy.QtWidgets import (
     QVBoxLayout,
 )
 
+from bec_widgets.utils.scan_arg_metadata import (
+    apply_numeric_limits,
+    apply_numeric_precision,
+    apply_unit_metadata,
+    device_units,
+)
 from bec_widgets.utils.widget_io import WidgetIO
 from bec_widgets.widgets.control.device_input.device_combobox.device_combobox import (
     BECDeviceFilter,
@@ -285,8 +291,8 @@ class ScanGroupBox(QGroupBox):
                 )
             else:
                 widget = widget_class(parent=self.parent(), arg_name=arg_name, default=default)
-            self._apply_numeric_precision(widget, item)
-            self._apply_numeric_limits(widget, item)
+            apply_numeric_precision(widget, item)
+            apply_numeric_limits(widget, item)
             if isinstance(widget, DeviceComboBox):
                 self.selected_devices[widget] = ""
                 widget.device_selected.connect(self.emit_device_selected)
@@ -298,7 +304,7 @@ class ScanGroupBox(QGroupBox):
             if isinstance(widget, ScanLiteralsComboBox):
                 widget.set_literals(item["type"].get("Literal", []))
             self._widget_configs[widget] = item
-            self._apply_unit_metadata(widget, item)
+            apply_unit_metadata(widget, item)
             self.layout.addWidget(widget, row, column_index)
             self.widgets.append(widget)
 
@@ -307,7 +313,7 @@ class ScanGroupBox(QGroupBox):
         sender = self.sender()
         self.selected_devices[sender] = device_name.strip()
         if isinstance(sender, DeviceComboBox):
-            units = self._device_units(sender.get_current_device())
+            units = device_units(sender.get_current_device())
             self._update_reference_units(sender, units)
             self._emit_reference_units_changed(sender, units)
         selected_devices_str = " ".join(self.selected_devices.values())
@@ -453,57 +459,11 @@ class ScanGroupBox(QGroupBox):
                     WidgetIO.set_value(widget, value)
                     break
 
-    @staticmethod
-    def _unit_tooltip(item: dict, units: str | None = None) -> str | None:
-        tooltip = item.get("tooltip", None)
-        reference_units = item.get("reference_units", None)
-        units = units or item.get("units", None)
-        tooltip_parts = [tooltip] if tooltip else []
-        if units:
-            tooltip_parts.append(f"Units: {units}")
-        elif reference_units:
-            tooltip_parts.append(f"Units from: {reference_units}")
-        if tooltip_parts:
-            return "\n".join(tooltip_parts)
-        return None
-
-    def _apply_unit_metadata(self, widget, item: dict, units: str | None = None) -> None:
-        units = units or item.get("units", None)
-        tooltip = self._unit_tooltip(item, units)
-        existing_tooltip = widget.toolTip()
-
-        if existing_tooltip:
-            # strip the existing unit info from the tooltip if it exists
-            # to avoid tooltip bloat on multiple updates
-            existing_tooltip = "\n".join(
-                line
-                for line in existing_tooltip.splitlines()
-                if not (line.startswith("Units:") or line.startswith("Units from:"))
-            ).strip()
-        if tooltip:
-            if existing_tooltip:
-                widget.setToolTip(f"{existing_tooltip}\n{tooltip}")
-            else:
-                widget.setToolTip(tooltip)
-        if hasattr(widget, "setSuffix"):
-            widget.setSuffix(f" {units}" if units else "")
-
     def _refresh_column_label(self, column: int, item: dict) -> None:
         if column not in self._column_labels:
             return
         self._column_labels[column].setText(item.get("display_name", item.get("name", None)))
 
-    @staticmethod
-    def _device_units(device) -> str | None:
-        egu = getattr(device, "egu", None)
-        if not callable(egu):
-            return None
-        try:
-            return egu()
-        except Exception:
-            logger.exception("Failed to fetch engineering units from device %s", device)
-            return None
-
     def _widget_position(self, widget) -> tuple[int, int] | None:
         for row in range(self.layout.rowCount()):
             for column in range(self.layout.columnCount()):
@@ -529,7 +489,7 @@ class ScanGroupBox(QGroupBox):
             row, column = widget_position
             if self.box_type == "args" and row != source_row:
                 continue
-            self._apply_unit_metadata(widget, item, units)
+            apply_unit_metadata(widget, item, units)
             self._refresh_column_label(column, item)
 
     def apply_reference_units(self, reference_name: str, units: str | None) -> None:
@@ -543,7 +503,7 @@ class ScanGroupBox(QGroupBox):
             item = self._widget_configs.get(widget, {})
             if item.get("reference_units") != reference_name:
                 continue
-            self._apply_unit_metadata(widget, item, units)
+            apply_unit_metadata(widget, item, units)
             position = self._widget_position(widget)
             if position is not None:
                 _, column = position
@@ -562,49 +522,3 @@ class ScanGroupBox(QGroupBox):
             self.selected_devices[device_widget] = ""
             self._update_reference_units(device_widget, None)
             self._emit_reference_units_changed(device_widget, None)
-
-    @staticmethod
-    def _apply_numeric_precision(widget: ScanDoubleSpinBox, item: dict) -> None:
-        if not isinstance(widget, ScanDoubleSpinBox):
-            return
-
-        precision = item.get("precision")
-        if precision is None:
-            return
-
-        try:
-            widget.setDecimals(max(0, int(precision)))
-        except (TypeError, ValueError):
-            logger.warning(
-                "Ignoring invalid precision %r for parameter %s", precision, item.get("name")
-            )
-
-    @staticmethod
-    def _apply_numeric_limits(widget: ScanDoubleSpinBox | ScanSpinBox, item: dict) -> None:
-        if isinstance(widget, ScanSpinBox):
-            minimum = -2147483647  # largest int which qt allows
-            maximum = 2147483647
-            if item.get("ge") is not None:
-                minimum = int(item["ge"])
-            if item.get("gt") is not None:
-                minimum = int(item["gt"]) + 1
-            if item.get("le") is not None:
-                maximum = int(item["le"])
-            if item.get("lt") is not None:
-                maximum = int(item["lt"]) - 1
-            widget.setRange(minimum, maximum)
-            return
-
-        if isinstance(widget, ScanDoubleSpinBox):
-            minimum = -float("inf")
-            maximum = float("inf")
-            step = 10 ** (-widget.decimals())
-            if item.get("ge") is not None:
-                minimum = float(item["ge"])
-            if item.get("gt") is not None:
-                minimum = float(item["gt"]) + step
-            if item.get("le") is not None:
-                maximum = float(item["le"])
-            if item.get("lt") is not None:
-                maximum = float(item["lt"]) - step
-            widget.setRange(minimum, maximum)

bec_widgets/widgets/control/scan_control/scan_info_adapter.py

@@ -2,9 +2,12 @@
 
 from __future__ import annotations
 
-import re
 from typing import Any
 
+from bec_widgets.utils.scan_arg_metadata import format_display_name as format_scan_display_name
+from bec_widgets.utils.scan_arg_metadata import resolve_tooltip as resolve_scan_tooltip
+from bec_widgets.utils.scan_arg_metadata import ui_config_from_metadata
+
 AnnotationValue = str | dict[str, Any] | list[Any] | None
 ScanArgumentMetadata = dict[str, Any]
 SignatureEntry = dict[str, Any]
@@ -74,8 +77,7 @@ class ScanInfoAdapter:
         Returns:
             str: Formatted display label such as ``Exp Time``.
         """
-        parts = re.split(r"(_|\d+)", name)
-        return " ".join(part.capitalize() for part in parts if part.isalnum()).strip()
+        return format_scan_display_name(name)
 
     @staticmethod
     def resolve_tooltip(scan_argument: ScanArgumentMetadata) -> str | None:
@@ -87,7 +89,7 @@ class ScanInfoAdapter:
         Returns:
             str | None: Explicit tooltip text if provided, otherwise the description fallback.
         """
-        return scan_argument.get("tooltip") or scan_argument.get("description")
+        return resolve_scan_tooltip(scan_argument)
 
     @staticmethod
     def parse_annotation(
@@ -204,24 +206,13 @@ class ScanInfoAdapter:
         Returns:
             ScanInputConfig: Normalized input configuration.
         """
-        return {
-            "arg": arg,
-            "name": name,
-            "type": self.scan_arg_type_from_annotation(annotation),
-            "display_name": scan_argument.get("display_name") or self.format_display_name(name),
-            "tooltip": self.resolve_tooltip(scan_argument),
-            "default": default,
-            "expert": scan_argument.get("expert", False),
-            "hidden": scan_argument.get("hidden", False),
-            "precision": scan_argument.get("precision"),
-            "units": scan_argument.get("units"),
-            "reference_units": scan_argument.get("reference_units"),
-            "gt": scan_argument.get("gt"),
-            "ge": scan_argument.get("ge"),
-            "lt": scan_argument.get("lt"),
-            "le": scan_argument.get("le"),
-            "alternative_group": scan_argument.get("alternative_group"),
-        }
+        return ui_config_from_metadata(
+            name=name,
+            metadata=scan_argument,
+            input_type=self.scan_arg_type_from_annotation(annotation),
+            default=default,
+            arg=arg,
+        )
 
     def build_scan_ui_config(self, scan_info: ScanInfo) -> ScanUIConfig:
         """Normalize one available-scan entry into the widget UI configuration.

bec_widgets/widgets/services/beamline_states/beamline_state_manager.py

@@ -0,0 +1,607 @@
+from __future__ import annotations
+
+import sys
+from typing import Any
+
+from bec_lib import bl_states, messages
+from bec_lib.endpoints import MessageEndpoints
+from bec_qthemes import material_icon
+from qtpy.QtCore import QAbstractListModel, QModelIndex, QSize, Qt
+from qtpy.QtWidgets import (
+    QAbstractItemView,
+    QApplication,
+    QDialog,
+    QHBoxLayout,
+    QLabel,
+    QListView,
+    QMessageBox,
+    QSizePolicy,
+    QStyledItemDelegate,
+    QStyleOptionViewItem,
+    QToolButton,
+    QVBoxLayout,
+    QWidget,
+)
+
+from bec_widgets.utils.bec_connector import ConnectionConfig
+from bec_widgets.utils.bec_widget import BECWidget
+from bec_widgets.utils.error_popups import SafeProperty, SafeSlot
+from bec_widgets.utils.toolbars.actions import MaterialIconAction
+from bec_widgets.utils.toolbars.bundles import ToolbarBundle
+from bec_widgets.utils.toolbars.toolbar import ModularToolBar
+from bec_widgets.widgets.services.beamline_states.beamline_state_pill import BeamlineStatePill
+from bec_widgets.widgets.services.beamline_states.dialogs import (
+    AddBeamlineStateDialog,
+    DeviceFilterDialog,
+    StatusFilterDialog,
+)
+
+
+class _BeamlineStateListModel(QAbstractListModel):
+    """Model owning beamline state row identity and configuration data."""
+
+    NameRole = Qt.ItemDataRole.UserRole + 1
+    ConfigRole = Qt.ItemDataRole.UserRole + 2
+
+    def __init__(self, parent: QWidget | None = None) -> None:
+        super().__init__(parent)
+        self._state_order: list[str] = []
+        self._state_rows: dict[str, int] = {}
+        self._state_configs: dict[str, messages.BeamlineStateConfig] = {}
+
+    def rowCount(self, parent: QModelIndex = QModelIndex()) -> int:  # noqa: N802
+        return 0 if parent.isValid() else len(self._state_order)
+
+    def data(self, index: QModelIndex, role: int = Qt.ItemDataRole.DisplayRole) -> Any:
+        if not index.isValid() or not 0 <= index.row() < len(self._state_order):
+            return None
+        name = self._state_order[index.row()]
+        if role in (Qt.ItemDataRole.DisplayRole, self.NameRole):
+            return name
+        if role == self.ConfigRole:
+            return self._state_configs.get(name)
+        return None
+
+    def flags(self, index: QModelIndex) -> Qt.ItemFlag:
+        if not index.isValid():
+            return Qt.ItemFlag.NoItemFlags
+        return Qt.ItemFlag.ItemIsEnabled | Qt.ItemFlag.ItemIsSelectable
+
+    def set_states(self, state_configs: list[messages.BeamlineStateConfig]) -> None:
+        new_order = [state.name for state in state_configs]
+        new_configs = {state.name: state for state in state_configs}
+
+        for row in reversed(
+            [row for row, name in enumerate(self._state_order) if name not in new_configs]
+        ):
+            self.beginRemoveRows(QModelIndex(), row, row)
+            name = self._state_order.pop(row)
+            self._state_configs.pop(name, None)
+            self.endRemoveRows()
+        self._rebuild_rows()
+
+        for target_row, name in enumerate(new_order):
+            if name not in self._state_rows:
+                self.beginInsertRows(QModelIndex(), target_row, target_row)
+                self._state_order.insert(target_row, name)
+                self._state_configs[name] = new_configs[name]
+                self.endInsertRows()
+                self._rebuild_rows()
+                continue
+
+            current_row = self._state_rows[name]
+            if current_row != target_row:
+                destination_row = target_row if current_row > target_row else target_row + 1
+                self.beginMoveRows(
+                    QModelIndex(), current_row, current_row, QModelIndex(), destination_row
+                )
+                self._state_order.insert(target_row, self._state_order.pop(current_row))
+                self.endMoveRows()
+                self._rebuild_rows()
+
+            if self._state_configs.get(name) != new_configs[name]:
+                self._state_configs[name] = new_configs[name]
+                index = self.index(self._state_rows[name], 0)
+                self.dataChanged.emit(index, index, [self.ConfigRole])
+
+    def _rebuild_rows(self) -> None:
+        self._state_rows = {name: row for row, name in enumerate(self._state_order)}
+
+    def index_for_name(self, name: str) -> QModelIndex:
+        row = self._state_rows.get(name)
+        if row is None:
+            return QModelIndex()
+        return self.index(row, 0)
+
+
+class _BeamlineStatePillDelegate(QStyledItemDelegate):
+    """Delegate that provides BeamlineStatePill persistent editors for list rows."""
+
+    def __init__(self, manager: "BeamlineStateManager") -> None:
+        super().__init__(manager)
+        self._manager = manager
+
+    def paint(self, _painter, _option: QStyleOptionViewItem, _index: QModelIndex) -> None:
+        return
+
+    def createEditor(  # noqa: N802
+        self, parent: QWidget, _option: QStyleOptionViewItem, index: QModelIndex
+    ) -> QWidget:
+        name = index.data(_BeamlineStateListModel.NameRole)
+        state_config = index.data(_BeamlineStateListModel.ConfigRole)
+        pill = BeamlineStatePill(parent=parent, state_name=name, client=self._manager.client)
+        pill.idle_card_background = self._manager.idle_card_background
+        pill.set_state_config(state_config)
+        pill.state_changed.connect(self._manager._on_pill_state_changed)
+        pill.update_requested.connect(self._manager._update_state_parameters)
+        pill.remove_requested.connect(self._manager._remove_state_requested)
+        pill.row_height_changed.connect(lambda name=name: self._manager._sync_pill_item_size(name))
+        self._manager._state_pills[str(name)] = pill
+        return pill
+
+    def setEditorData(self, editor: QWidget, index: QModelIndex) -> None:  # noqa: N802
+        if not isinstance(editor, BeamlineStatePill):
+            return
+        name = index.data(_BeamlineStateListModel.NameRole)
+        state_config = index.data(_BeamlineStateListModel.ConfigRole)
+        editor.set_state_name(str(name))
+        editor.idle_card_background = self._manager.idle_card_background
+        editor.set_state_config(state_config)
+
+    def updateEditorGeometry(  # noqa: N802
+        self, editor: QWidget, option: QStyleOptionViewItem, _index: QModelIndex
+    ) -> None:
+        editor.setGeometry(option.rect)
+
+    def sizeHint(self, option: QStyleOptionViewItem, index: QModelIndex) -> QSize:  # noqa: N802
+        name = index.data(_BeamlineStateListModel.NameRole)
+        pill = self._manager._state_pills.get(str(name))
+        if pill is not None:
+            return pill.sizeHint()
+        return QSize(120, 58)
+
+    def destroyEditor(self, editor: QWidget, index: QModelIndex) -> None:  # noqa: N802
+        if isinstance(editor, BeamlineStatePill):
+            name = editor.state_name
+            if name and self._manager._state_pills.get(name) is editor:
+                self._manager._state_pills.pop(name, None)
+            editor.cleanup()
+        super().destroyEditor(editor, index)
+
+
+class _BeamlineStateListView(QListView):
+    """List view using persistent pill editors."""
+
+    def __init__(self, parent: QWidget | None = None) -> None:
+        super().__init__(parent)
+        self.setObjectName("beamline_state_pill_view")
+        self.setSelectionMode(QAbstractItemView.SelectionMode.SingleSelection)
+        self.setVerticalScrollMode(QAbstractItemView.ScrollMode.ScrollPerPixel)
+        self.setHorizontalScrollBarPolicy(Qt.ScrollBarPolicy.ScrollBarAlwaysOff)
+        self.setFrameShape(QListView.Shape.NoFrame)
+        self.setSpacing(6)
+        self.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Expanding)
+        self.setStyleSheet(
+            "QListView#beamline_state_pill_view {"
+            "background: transparent;"
+            "border: none;"
+            "}"
+            "QListView#beamline_state_pill_view::item {"
+            "background: transparent;"
+            "border: none;"
+            "padding: 0;"
+            "}"
+            "QListView#beamline_state_pill_view::item:selected {"
+            "background: transparent;"
+            "border: none;"
+            "}"
+        )
+
+
+class BeamlineStateManager(BECWidget, QWidget):
+    """
+    Widget displaying and managing all BEC beamline states.
+
+    The manager subscribes to ``MessageEndpoints.available_beamline_states()`` and creates,
+    updates, or removes child ``BeamlineStatePill`` widgets as the set of configured states changes.
+    """
+
+    PLUGIN = True
+    ICON_NAME = "format_list_bulleted"
+    USER_ACCESS = [
+        "clear_filters",
+        "collapse_all",
+        "state_summary",
+        "remove",
+        "attach",
+        "detach",
+        "screenshot",
+    ]
+
+    def __init__(
+        self,
+        parent: QWidget | None = None,
+        client=None,
+        config: ConnectionConfig | None = None,
+        gui_id: str | None = None,
+        idle_card_background: bool = False,
+        **kwargs,
+    ) -> None:
+        super().__init__(
+            parent=parent, client=client, config=config, gui_id=gui_id, theme_update=True, **kwargs
+        )
+        self.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Expanding)
+        self._state_pills: dict[str, BeamlineStatePill] = {}
+        self._state_configs: dict[str, messages.BeamlineStateConfig] = {}
+        self._state_order: list[str] = []
+        self._selected_statuses: set[str] | None = None
+        self._selected_devices: set[str] | None = None
+        self._device_filter_text = ""
+        self._hidden_expanded = False
+        self._idle_card_background = False
+        self.idle_card_background = idle_card_background
+
+        self._empty_label = QLabel(
+            "No beamline states available.\n Add new state from toolbar or CLI.", self
+        )
+        self._empty_label.setAlignment(Qt.AlignmentFlag.AlignCenter)
+
+        self._toolbar = self._create_toolbar()
+        self._model = _BeamlineStateListModel(self)
+        self._view = _BeamlineStateListView(self)
+        self._delegate = _BeamlineStatePillDelegate(self)
+        self._view.setModel(self._model)
+        self._view.setItemDelegate(self._delegate)
+
+        layout = QVBoxLayout(self)
+        layout.setContentsMargins(8, 8, 8, 8)
+        layout.setSpacing(6)
+        layout.addWidget(self._toolbar)
+        layout.addWidget(self._empty_label)
+        layout.addWidget(self._view, 1)
+        self._hidden_summary = QToolButton(self)
+        self._hidden_summary.setToolButtonStyle(Qt.ToolButtonStyle.ToolButtonTextBesideIcon)
+        self._hidden_summary.setCheckable(True)
+        self._hidden_summary.toggled.connect(self._toggle_hidden_states)
+        layout.addWidget(self._hidden_summary)
+        self.setLayout(layout)
+
+        self.bec_dispatcher.connect_slot(
+            self.update_available_states, MessageEndpoints.available_beamline_states()
+        )
+        self.refresh_states()
+        self._refresh_hidden_summary()
+
+    @SafeProperty(bool, default=False)
+    def idle_card_background(self) -> bool:
+        """
+        Whether idle collapsed pills keep the status-tinted card background.
+        """
+        return self._idle_card_background
+
+    @idle_card_background.setter
+    def idle_card_background(self, enabled: bool) -> None:
+        self._idle_card_background = enabled
+        for pill in self._state_pills.values():
+            pill.idle_card_background = self._idle_card_background
+
+    def set_idle_card_background(self, enabled: bool) -> None:
+        """Set whether idle collapsed pills keep the status-tinted card background."""
+        self.idle_card_background = enabled
+
+    def _create_toolbar(self) -> ModularToolBar:
+        toolbar = ModularToolBar(parent=self)
+
+        add_state = MaterialIconAction("add", "Add beamline state", filled=True, parent=self)
+        filter_states = MaterialIconAction(
+            "filter_alt", "Filter displayed state status", filled=True, parent=self
+        )
+        filter_devices = MaterialIconAction(
+            "devices", "Filter displayed devices", filled=True, parent=self
+        )
+        clear_filters = MaterialIconAction(
+            "filter_alt_off", "Clear beamline state filters", filled=True, parent=self
+        )
+        collapse_all = MaterialIconAction(
+            "collapse_all", "Collapse all states", filled=True, parent=self
+        )
+
+        add_state.action.triggered.connect(self.open_add_state_dialog)
+        filter_states.action.triggered.connect(self.open_status_filter_dialog)
+        filter_devices.action.triggered.connect(self.open_device_filter_dialog)
+        clear_filters.action.triggered.connect(self.clear_filters)
+        collapse_all.action.triggered.connect(self.collapse_all)
+
+        toolbar.components.add_safe("add_state", add_state)
+        toolbar.components.add_safe("filter_states", filter_states)
+        toolbar.components.add_safe("filter_devices", filter_devices)
+        toolbar.components.add_safe("clear_filters", clear_filters)
+        toolbar.components.add_safe("collapse_all", collapse_all)
+
+        bundle = ToolbarBundle("beamline_state_manager", toolbar.components)
+        bundle.add_action("add_state")
+        bundle.add_action("filter_states")
+        bundle.add_action("filter_devices")
+        bundle.add_action("clear_filters")
+        bundle.add_action("collapse_all")
+        toolbar.add_bundle(bundle)
+        toolbar.show_bundles(["beamline_state_manager"])
+        return toolbar
+
+    @SafeSlot(str)
+    def apply_theme(self, _theme: str) -> None:
+        colors = BeamlineStatePill._state_colors("unknown")
+        self.setStyleSheet(
+            "BeamlineStateManager { border: none; }"
+            "QToolButton#hidden_states_summary {"
+            f"background-color: {colors['background']};"
+            f"border: 1px solid {colors['border']};"
+            "border-radius: 6px;"
+            "padding: 6px;"
+            "text-align: left;"
+            "}"
+        )
+        for pill in self._state_pills.values():
+            pill.apply_theme(_theme)
+        self._refresh_hidden_summary()
+
+    @SafeSlot()
+    def open_add_state_dialog(self) -> None:
+        dialog = AddBeamlineStateDialog(self, client=self.client)
+        config = None
+        try:
+            accepted = dialog.exec() == QDialog.Accepted
+            if accepted:
+                config = dialog.config_result
+        finally:
+            dialog.cleanup()
+            dialog.deleteLater()
+
+        if config is None:
+            return
+        try:
+            self.client.beamline_states.add(config)
+        except Exception as exc:
+            QMessageBox.warning(self, "Cannot Add State", str(exc))
+
+    @SafeSlot()
+    def open_status_filter_dialog(self) -> None:
+        dialog = StatusFilterDialog(self._selected_statuses, self)
+        if dialog.exec() != QDialog.Accepted:
+            return
+        self._selected_statuses = dialog.selected_statuses()
+        self._apply_filters()
+
+    @SafeSlot()
+    def open_device_filter_dialog(self) -> None:
+        devices = sorted(
+            {
+                device
+                for state in self._state_configs.values()
+                if (device := self._state_device(state)) is not None
+            }
+        )
+        dialog = DeviceFilterDialog(devices, self._selected_devices, self._device_filter_text, self)
+        if dialog.exec() != QDialog.Accepted:
+            return
+        self._selected_devices = dialog.selected_devices()
+        self._device_filter_text = dialog.filter_text()
+        self._apply_filters()
+
+    @SafeSlot()
+    def clear_filters(self) -> None:
+        self._selected_statuses = None
+        self._selected_devices = None
+        self._device_filter_text = ""
+        self._hidden_expanded = False
+        self._apply_filters()
+
+    @SafeSlot()
+    def collapse_all(self) -> None:
+        """Collapse the settings panel of all displayed state pills."""
+        for pill in self._state_pills.values():
+            pill.set_expanded(False)
+
+    def state_summary(self) -> dict[str, dict[str, str]]:
+        """
+        Return all beamline states (including filtered ones) with their current status and label.
+
+        Returns:
+            dict: Mapping of state name to a dictionary with ``status`` and ``label`` keys.
+        """
+
+        return {
+            name: {"status": pill._status, "label": pill._label}
+            for name, pill in self._state_pills.items()
+        }
+
+    @SafeSlot()
+    def refresh_states(self) -> None:
+        """Fetch the latest cached available beamline states and update the list immediately."""
+        msg = self.client.connector.get_last(
+            MessageEndpoints.available_beamline_states(), key="data"
+        )
+        if msg is not None:
+            self.update_available_states(msg.content, msg.metadata)
+
+    @SafeSlot(dict, dict)
+    def update_available_states(
+        self, content: dict[str, Any], _metadata: dict[str, Any] | None = None
+    ) -> None:
+        """Update the displayed pills from ``AvailableBeamlineStatesMessage`` content."""
+        expanded_names = {name for name, pill in self._state_pills.items() if pill.is_expanded()}
+        state_configs: list[messages.BeamlineStateConfig] = content.get("states", [])
+        if state_configs == list(self._state_configs.values()):
+            self._apply_filters()
+            return
+        self._state_configs = {state.name: state for state in state_configs}
+        self._state_order = [state.name for state in state_configs]
+        self._model.set_states(state_configs)
+        self._open_persistent_editors(expanded_names)
+        self._apply_filters()
+
+    def _open_persistent_editors(self, expanded_names: set[str] | None = None) -> None:
+        expanded_names = expanded_names or set()
+        for row in range(self._model.rowCount()):
+            index = self._model.index(row, 0)
+            self._view.openPersistentEditor(index)
+            name = str(index.data(_BeamlineStateListModel.NameRole))
+            pill = self._state_pills.get(name)
+            if pill is not None:
+                pill.set_expanded(name in expanded_names)
+                self._sync_pill_item_size(name)
+
+    def _apply_filters(self) -> None:
+        visible_names = []
+        hidden_names = []
+        for name in self._state_order:
+            if self._is_state_visible(name):
+                visible_names.append(name)
+            else:
+                hidden_names.append(name)
+
+        visible_set = set(visible_names)
+        show_hidden = self._hidden_expanded and bool(hidden_names)
+        for row, name in enumerate(self._state_order):
+            hidden_by_filter = name not in visible_set
+            self._view.setRowHidden(row, hidden_by_filter and not show_hidden)
+            self._sync_pill_item_size(name)
+        self._empty_label.setVisible(
+            not visible_names and not (self._hidden_expanded and hidden_names)
+        )
+        self._view.setVisible(bool(visible_names) or (self._hidden_expanded and bool(hidden_names)))
+        self._refresh_hidden_summary(hidden_count=len(hidden_names))
+
+    def _sync_pill_item_size(self, name: str) -> None:
+        index = self._model.index_for_name(name)
+        if not index.isValid():
+            return
+        self._model.dataChanged.emit(index, index, [Qt.ItemDataRole.SizeHintRole])
+        self._view.update(index)
+
+    def _is_state_visible(self, name: str) -> bool:
+        pill = self._state_pills.get(name)
+        if self._selected_statuses is not None and (
+            pill is None or pill._status not in self._selected_statuses
+        ):
+            return False
+
+        device = self._state_device(self._state_configs.get(name))
+        if self._selected_devices is not None and device not in self._selected_devices:
+            return False
+
+        tokens = [
+            token.strip().casefold()
+            for token in self._device_filter_text.split(",")
+            if token.strip()
+        ]
+        if tokens:
+            if device is None:
+                return False
+            device_lower = device.casefold()
+            if not any(token in device_lower for token in tokens):
+                return False
+        return True
+
+    @SafeSlot(str, str, str)
+    def _on_pill_state_changed(self, _name: str, _status: str, _label: str) -> None:
+        if self._selected_statuses is not None:
+            self._apply_filters()
+
+    @SafeSlot(str, object)
+    def _update_state_parameters(
+        self, state_name: str, config: bl_states.BeamlineStateConfig
+    ) -> None:
+        state_client = getattr(self.client.beamline_states, state_name, None)
+        if state_client is None:
+            QMessageBox.warning(
+                self, "Cannot Update State", f"Beamline state '{state_name}' is not available."
+            )
+            return
+        try:
+            state_client.update_parameters(**config.model_dump(exclude={"name"}))
+        except Exception as exc:
+            QMessageBox.warning(self, "Cannot Update State", str(exc))
+            return
+        pill = self._state_pills.get(state_name)
+        if pill is not None:
+            pill.mark_current_settings_clean()
+
+    @SafeSlot(str)
+    def _remove_state_requested(self, state_name: str) -> None:
+        reply = QMessageBox.question(
+            self,
+            "Remove Beamline State",
+            f"Remove beamline state '{state_name}'?",
+            QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No,
+            QMessageBox.StandardButton.No,
+        )
+        if reply != QMessageBox.StandardButton.Yes:
+            return
+
+        try:
+            self.client.beamline_states.delete(state_name)
+        except Exception as exc:
+            QMessageBox.warning(self, "Cannot Remove State", str(exc))
+
+    @SafeSlot(bool)
+    def _toggle_hidden_states(self, checked: bool) -> None:
+        self._hidden_expanded = bool(checked)
+        self._apply_filters()
+
+    def _refresh_hidden_summary(self, hidden_count: int | None = None) -> None:
+        if hidden_count is None:
+            hidden_count = sum(1 for name in self._state_order if not self._is_state_visible(name))
+        self._hidden_summary.setObjectName("hidden_states_summary")
+        self._hidden_summary.setVisible(hidden_count > 0)
+        self._hidden_summary.setChecked(self._hidden_expanded and hidden_count > 0)
+        icon_name = "expand_less" if self._hidden_expanded else "expand_more"
+        self._hidden_summary.setIcon(material_icon(icon_name, convert_to_pixmap=False))
+        suffix = "state is" if hidden_count == 1 else "states are"
+        action = "Hide" if self._hidden_expanded else "Show"
+        self._hidden_summary.setText(
+            f"{hidden_count} {suffix} hidden by filters. {action} hidden states."
+        )
+
+    @staticmethod
+    def _state_device(state: messages.BeamlineStateConfig | None) -> str | None:
+        device = state.parameters.get("device") if state is not None else None
+        return str(device) if device else None
+
+    def cleanup(self) -> None:
+        self.bec_dispatcher.disconnect_slot(
+            self.update_available_states, MessageEndpoints.available_beamline_states()
+        )
+        for row in range(self._model.rowCount()):
+            self._view.closePersistentEditor(self._model.index(row, 0))
+        for pill in list(self._state_pills.values()):
+            pill.cleanup()
+            pill.deleteLater()
+        self._state_pills.clear()
+        self._toolbar.components.cleanup()
+        super().cleanup()
+
+
+if __name__ == "__main__":  # pragma: no cover
+    app = QApplication(sys.argv)
+
+    from bec_widgets.utils.colors import apply_theme
+    from bec_widgets.widgets.utility.visual.dark_mode_button.dark_mode_button import DarkModeButton
+
+    apply_theme("dark")
+
+    window = QWidget()
+    window.setWindowTitle("Beamline States")
+    layout = QVBoxLayout(window)
+    layout.setContentsMargins(12, 12, 12, 12)
+    layout.setSpacing(8)
+
+    theme_row = QHBoxLayout()
+    theme_row.addStretch(1)
+    theme_row.addWidget(DarkModeButton(parent=window))
+    layout.addLayout(theme_row)
+    layout.addWidget(BeamlineStateManager(parent=window), 1)
+
+    window.resize(760, 480)
+    window.show()
+    sys.exit(app.exec())

bec_widgets/widgets/services/beamline_states/beamline_state_manager.pyproject

@@ -0,0 +1 @@
+{'files': ['beamline_state_pill.py']}

bec_widgets/widgets/services/beamline_states/beamline_state_manager_plugin.py

@@ -0,0 +1,57 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+from qtpy.QtDesigner import QDesignerCustomWidgetInterface
+from qtpy.QtWidgets import QWidget
+
+from bec_widgets.utils.bec_designer import designer_material_icon
+from bec_widgets.widgets.services.beamline_states.beamline_state_manager import BeamlineStateManager
+
+DOM_XML = """
+<ui language='c++'>
+    <widget class='BeamlineStateManager' name='beamline_state_manager'>
+    </widget>
+</ui>
+"""
+
+
+class BeamlineStateManagerPlugin(QDesignerCustomWidgetInterface):  # pragma: no cover
+    def __init__(self):
+        super().__init__()
+        self._form_editor = None
+
+    def createWidget(self, parent):
+        if parent is None:
+            return QWidget()
+        t = BeamlineStateManager(parent)
+        return t
+
+    def domXml(self):
+        return DOM_XML
+
+    def group(self):
+        return "BEC Services"
+
+    def icon(self):
+        return designer_material_icon(BeamlineStateManager.ICON_NAME)
+
+    def includeFile(self):
+        return "beamline_state_manager"
+
+    def initialize(self, form_editor):
+        self._form_editor = form_editor
+
+    def isContainer(self):
+        return False
+
+    def isInitialized(self):
+        return self._form_editor is not None
+
+    def name(self):
+        return "BeamlineStateManager"
+
+    def toolTip(self):
+        return ""
+
+    def whatsThis(self):
+        return self.toolTip()

bec_widgets/widgets/services/beamline_states/beamline_state_pill.py

@@ -0,0 +1,625 @@
+from __future__ import annotations
+
+from typing import Any
+
+from bec_lib import bl_states, messages
+from bec_lib.endpoints import MessageEndpoints
+from bec_qthemes import material_icon
+from qtpy.QtCore import Qt, Signal
+from qtpy.QtGui import QColor, QMouseEvent, QPalette
+from qtpy.QtWidgets import (
+    QApplication,
+    QFormLayout,
+    QGraphicsDropShadowEffect,
+    QHBoxLayout,
+    QLabel,
+    QMessageBox,
+    QPushButton,
+    QSizePolicy,
+    QToolButton,
+    QVBoxLayout,
+    QWidget,
+)
+
+from bec_widgets.utils.bec_connector import ConnectionConfig
+from bec_widgets.utils.bec_widget import BECWidget
+from bec_widgets.utils.colors import Colors, get_accent_colors, get_theme_name, rgba, theme_color
+from bec_widgets.utils.error_popups import SafeProperty, SafeSlot
+from bec_widgets.utils.forms_from_types.pydantic_widget_form import (
+    OptionalValueWidget,
+    PydanticWidgetForm,
+)
+from bec_widgets.widgets.services.beamline_states.dialogs import (
+    BEAMLINE_STATE_STATUS_LABELS,
+    SUPPORTED_BEAMLINE_STATES,
+)
+
+
+class _BeamlineStatePillHeader(QWidget):
+    """Header surface responsible for pill click gestures."""
+
+    clicked = Signal()
+
+    def mousePressEvent(self, event: QMouseEvent) -> None:  # noqa: N802
+        if event.button() == Qt.MouseButton.LeftButton:
+            self.clicked.emit()
+            event.accept()
+            return
+        super().mousePressEvent(event)
+
+
+class BeamlineStatePill(BECWidget, QWidget):
+    """
+    Compact widget showing one BEC beamline state.
+
+    The pill subscribes to ``MessageEndpoints.beamline_state(state_name)`` and updates whenever
+    a ``BeamlineStateMessage`` is published for that state.
+    """
+
+    PLUGIN = False
+    RPC = False
+
+    state_changed = Signal(str, str, str)
+    update_requested = Signal(str, object)
+    remove_requested = Signal(str)
+    row_height_changed = Signal()
+
+    _STATUS_LABELS = BEAMLINE_STATE_STATUS_LABELS
+    _STATUS_ICONS = {
+        "valid": "check_circle",
+        "invalid": "cancel",
+        "warning": "warning",
+        "unknown": "help",
+    }
+
+    def __init__(
+        self,
+        parent: QWidget | None = None,
+        state_name: str | None = None,
+        client=None,
+        config: ConnectionConfig | None = None,
+        gui_id: str | None = None,
+        **kwargs,
+    ) -> None:
+        super().__init__(
+            parent=parent, client=client, config=config, gui_id=gui_id, theme_update=True, **kwargs
+        )
+        self.setObjectName("BeamlineStatePill")
+        self.setAttribute(Qt.WidgetAttribute.WA_StyledBackground, True)
+        self.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Minimum)
+        self._state_name: str | None = None
+        self._state_config: messages.BeamlineStateConfig | None = None
+        self._status = "unknown"
+        self._label = "No state information available."
+        self._expanded = False
+        self._idle_card_background = False
+        self._populating_settings = False
+        self._settings_baseline: dict[str, Any] = {}
+        self._settings_dirty_fields: set[str] = set()
+        self._settings_form_stale = True
+
+        self._init_ui(state_name)
+
+    def _init_ui(self, state_name: str | None = None) -> None:
+        self._shadow = QGraphicsDropShadowEffect(self)
+        self._shadow.setBlurRadius(18)
+        self._shadow.setOffset(0, 2)
+        self._shadow.setColor(QColor(0, 0, 0, 120))
+        self._shadow.setEnabled(False)
+        self.setGraphicsEffect(self._shadow)
+
+        self._header = _BeamlineStatePillHeader(self)
+        self._header.setObjectName("beamline_state_header")
+        self._header.setCursor(Qt.CursorShape.PointingHandCursor)
+        self._header.clicked.connect(self._toggle_expanded)
+
+        self._stripe = QWidget(self)
+        self._stripe.setObjectName("beamline_state_stripe")
+        self._stripe.setFixedWidth(4)
+        self._stripe.setSizePolicy(QSizePolicy.Policy.Fixed, QSizePolicy.Policy.Expanding)
+        self._stripe.setAttribute(Qt.WidgetAttribute.WA_TransparentForMouseEvents, True)
+
+        self._icon_label = QLabel(self)
+        self._icon_label.setObjectName("beamline_state_icon")
+        self._icon_label.setFixedSize(32, 32)
+        self._icon_label.setAlignment(Qt.AlignmentFlag.AlignCenter)
+        self._icon_label.setAttribute(Qt.WidgetAttribute.WA_TransparentForMouseEvents, True)
+        self._name_label = QLabel(self)
+        self._name_label.setObjectName("beamline_state_name")
+        self._name_label.setTextFormat(Qt.TextFormat.PlainText)
+        self._name_label.setAttribute(Qt.WidgetAttribute.WA_TransparentForMouseEvents, True)
+        self._status_label = QLabel(self)
+        self._status_label.setObjectName("beamline_state_status")
+        self._status_label.setTextFormat(Qt.TextFormat.PlainText)
+        self._status_label.setAttribute(Qt.WidgetAttribute.WA_TransparentForMouseEvents, True)
+        self._detail_label = QLabel(self)
+        self._detail_label.setObjectName("beamline_state_detail")
+        self._detail_label.setTextFormat(Qt.TextFormat.PlainText)
+        self._detail_label.setWordWrap(True)
+        self._detail_label.setAttribute(Qt.WidgetAttribute.WA_TransparentForMouseEvents, True)
+        self._expand_button = QToolButton(self)
+        self._expand_button.setObjectName("beamline_state_expand")
+        self._expand_button.setAutoRaise(True)
+        self._expand_button.setCursor(Qt.CursorShape.PointingHandCursor)
+        self._expand_button.clicked.connect(self._toggle_expanded)
+
+        text_layout = QVBoxLayout()
+        text_layout.setContentsMargins(0, 0, 0, 0)
+        text_layout.setSpacing(1)
+        text_layout.addWidget(self._name_label)
+        text_layout.addWidget(self._detail_label)
+
+        header_layout = QHBoxLayout(self._header)
+        header_layout.setContentsMargins(10, 8, 12, 8)
+        header_layout.setSpacing(10)
+        header_layout.addWidget(self._stripe)
+        header_layout.addWidget(self._icon_label)
+        header_layout.addLayout(text_layout, 1)
+        header_layout.addWidget(self._status_label, 0, Qt.AlignmentFlag.AlignRight)
+        header_layout.addWidget(self._expand_button)
+
+        self._settings = QWidget(self)
+        self._settings.setObjectName("beamline_state_settings")
+        self._settings.setVisible(False)
+        self._state_type_value = QLabel(self._settings)
+        self._config_form: PydanticWidgetForm | None = None
+        self._config_form_host = QVBoxLayout()
+        self._config_form_host.setContentsMargins(0, 0, 0, 0)
+        self._config_form_host.setSpacing(0)
+
+        button_layout = QHBoxLayout()
+        button_layout.setContentsMargins(0, 0, 0, 0)
+        button_layout.setSpacing(8)
+        self._update_button = QPushButton("Update", self._settings)
+        self._update_button.setIcon(material_icon("save", convert_to_pixmap=False))
+        self._revert_button = QPushButton("Revert", self._settings)
+        self._revert_button.setIcon(material_icon("undo", convert_to_pixmap=False))
+        self._remove_button = QPushButton("Remove", self._settings)
+        self._remove_button.setObjectName("beamline_state_remove_button")
+        self._remove_button.setIcon(material_icon("delete", convert_to_pixmap=False))
+        self._update_button.clicked.connect(self._emit_update_requested)
+        self._revert_button.clicked.connect(self._revert_settings)
+        self._remove_button.clicked.connect(self._emit_remove_requested)
+        button_layout.addWidget(self._update_button)
+        button_layout.addWidget(self._revert_button)
+        button_layout.addWidget(self._remove_button)
+        button_layout.addStretch(1)
+
+        self._settings_form = QFormLayout()
+        self._settings_form.setContentsMargins(0, 0, 0, 0)
+        self._settings_form.setHorizontalSpacing(10)
+        self._settings_form.setVerticalSpacing(8)
+        self._settings_form.setFieldGrowthPolicy(
+            QFormLayout.FieldGrowthPolicy.AllNonFixedFieldsGrow
+        )
+        self._settings_form.setLabelAlignment(Qt.AlignmentFlag.AlignRight)
+        self._settings_form.addRow("Type", self._state_type_value)
+
+        settings_layout = QVBoxLayout(self._settings)
+        settings_layout.setContentsMargins(12, 8, 12, 12)
+        settings_layout.setSpacing(8)
+        settings_layout.addLayout(self._settings_form)
+        settings_layout.addLayout(self._config_form_host)
+        settings_layout.addLayout(button_layout)
+
+        layout = QVBoxLayout(self)
+        layout.setContentsMargins(0, 0, 0, 0)
+        layout.setSpacing(0)
+        layout.addWidget(self._header)
+        layout.addWidget(self._settings)
+        self.setLayout(layout)
+
+        self._settings.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Minimum)
+        self.set_state_name(state_name)
+        self._update_button.setEnabled(False)
+        self._revert_button.setEnabled(False)
+
+    @SafeProperty(str, default=None)
+    def state_name(self) -> str | None:
+        """Name of the BEC beamline state displayed by this pill."""
+        return self._state_name
+
+    @state_name.setter
+    def state_name(self, state_name: str | None) -> None:
+        self.set_state_name(state_name)
+
+    def set_state_name(self, state_name: str | None) -> None:
+        """
+        Set the BEC beamline state this pill displays.
+
+        Args:
+            state_name: State name as published by ``AvailableBeamlineStatesMessage``.
+        """
+        if state_name == self._state_name:
+            return
+
+        if self._state_name is not None:
+            self.bec_dispatcher.disconnect_slot(
+                self.update_state, MessageEndpoints.beamline_state(self._state_name)
+            )
+
+        self._state_name = state_name
+        self._name_label.setText(state_name or "Beamline state")
+
+        if self._state_name is None:
+            self._set_visual_state("unknown", "No beamline state selected.")
+            return
+
+        self._set_visual_state("unknown", "No state information available.")
+        self._refresh_latest_state()
+        self.bec_dispatcher.connect_slot(
+            self.update_state, MessageEndpoints.beamline_state(self._state_name)
+        )
+
+    def set_state_config(self, state_config: messages.BeamlineStateConfig | None) -> None:
+        """Set the editable BEC state configuration displayed by the expanded panel."""
+        self._state_config = state_config
+        self._settings_form_stale = True
+        if self._config_form is not None:
+            self._populate_settings()
+            self.mark_current_settings_clean()
+
+    @SafeProperty(bool, default=False)
+    def idle_card_background(self) -> bool:
+        """
+        Whether idle collapsed pills keep the status-tinted card background.
+        """
+        return self._idle_card_background
+
+    @idle_card_background.setter
+    def idle_card_background(self, enabled: bool) -> None:
+        self._idle_card_background = enabled
+        self._apply_visual_state()
+
+    def set_idle_card_background(self, enabled: bool) -> None:
+        """Set whether idle collapsed pills keep the status-tinted card background."""
+        self.idle_card_background = enabled
+
+    def _refresh_latest_state(self) -> None:
+        if self._state_name is None:
+            return
+        msg = self.client.connector.get_last(
+            MessageEndpoints.beamline_state(self._state_name), key="data"
+        )
+        if msg is not None:
+            self.update_state(msg.content, msg.metadata)
+
+    @SafeSlot(dict, dict)
+    def update_state(
+        self, content: dict[str, Any], _metadata: dict[str, Any] | None = None
+    ) -> None:
+        """
+        Update this pill from a ``BeamlineStateMessage`` content dictionary.
+        """
+        name = content.get("name")
+        if self._state_name is not None and name and name != self._state_name:
+            return
+
+        status = str(content.get("status", "unknown")).lower()
+        label = str(content.get("label", "No state information available."))
+        self._set_visual_state(status, label)
+        self.state_changed.emit(self._state_name or str(name or ""), status, label)
+
+    @SafeSlot(str)
+    def apply_theme(self, _theme: str) -> None:
+        self._apply_visual_state()
+
+    def _set_visual_state(self, status: str, label: str) -> None:
+        status = status if status in self._STATUS_LABELS else "unknown"
+        self._status = status
+        self._label = label
+
+        self._apply_visual_state()
+
+    def _apply_visual_state(self) -> None:
+        colors = self._state_colors(self._status)
+        accent = colors["accent"]
+        on_accent = colors["on_accent"]
+        active_card = self._expanded
+        border = colors["border"] if self._idle_card_background else "transparent"
+        background = colors["background"] if self._idle_card_background else "transparent"
+        card_gradient = (
+            "qlineargradient("
+            "x1:0, y1:0, x2:1, y2:0, "
+            f"stop:0 {colors['gradient_accent']}, "
+            f"stop:{colors['gradient_stop']} {colors['card_background']}, "
+            f"stop:1 {colors['card_background']}"
+            ")"
+        )
+        if active_card:
+            background = card_gradient
+            border = colors["card_border"]
+        hover_background = card_gradient
+        self._shadow.setColor(QColor(colors["shadow"]))
+        self._shadow.setBlurRadius(int(colors["shadow_blur"]))
+        self._shadow.setOffset(0, int(colors["shadow_y_offset"]))
+        self._shadow.setEnabled(active_card)
+
+        icon_name = self._STATUS_ICONS[self._status]
+        self._icon_label.setPixmap(
+            material_icon(icon_name, size=(20, 20), color=on_accent, filled=True)
+        )
+        expand_icon = "expand_less" if self._expanded else "expand_more"
+        self._expand_button.setIcon(material_icon(expand_icon, convert_to_pixmap=False))
+        self._status_label.setText(self._STATUS_LABELS[self._status])
+        self._detail_label.setText(self._label)
+        self.setToolTip(self._label)
+        self.setStyleSheet(
+            "#BeamlineStatePill {"
+            f"background: {background};"
+            f"border: 1px solid {border};"
+            f"border-radius: {'12px' if active_card else '8px'};"
+            "}"
+            "#BeamlineStatePill:hover {"
+            f"background: {hover_background};"
+            f"border: 1px solid {colors['card_border']};"
+            "border-radius: 12px;"
+            "}"
+            "QWidget#beamline_state_header {"
+            "background: transparent;"
+            "}"
+            "QWidget#beamline_state_stripe {"
+            f"background-color: {accent};"
+            "border-radius: 2px;"
+            "}"
+            "QLabel#beamline_state_icon {"
+            f"background-color: {accent};"
+            "border-radius: 16px;"
+            "}"
+            "QLabel#beamline_state_name {"
+            f"color: {colors['foreground']};"
+            "font-weight: 600;"
+            "}"
+            "QLabel#beamline_state_status {"
+            f"color: {accent};"
+            "font-weight: 700;"
+            "font-size: 13px;"
+            "}"
+            "QLabel#beamline_state_detail {"
+            f"color: {colors['muted']};"
+            "font-size: 11px;"
+            "}"
+            "QWidget#beamline_state_settings {"
+            "background: transparent;"
+            f"border-top: 1px solid {colors['border']};"
+            "}"
+            '*[beamlineStateDirty="true"] {'
+            f"background-color: {colors['dirty_background']};"
+            f"border: 1px solid {colors['dirty_border']};"
+            "border-radius: 4px;"
+            "}"
+            "QPushButton#beamline_state_remove_button {"
+            "background-color: #cc181e;"
+            "border: 1px solid #cc181e;"
+            "color: white;"
+            "border-radius: 4px;"
+            "padding: 4px 10px;"
+            "}"
+            "QPushButton#beamline_state_remove_button:hover {"
+            "background-color: #a91419;"
+            "border-color: #a91419;"
+            "}"
+        )
+
+    @SafeSlot()
+    def _toggle_expanded(self) -> None:
+        self.set_expanded(not self._expanded)
+
+    def is_expanded(self) -> bool:
+        """Return whether the editable settings panel is expanded."""
+        return self._expanded
+
+    def set_expanded(self, expanded: bool) -> None:
+        """
+        Set the editable settings panel expanded state.
+
+        The settings form is built on demand when the panel expands and released again on
+        collapse, so collapsed pills do not keep live device/signal widgets and their BEC
+        subscriptions around. Unsaved edits are discarded on collapse.
+        """
+
+        expanded = bool(expanded)
+        if expanded == self._expanded:
+            return
+        if expanded:
+            self._ensure_settings_form_current()
+        self._expanded = expanded
+        self._settings.setVisible(expanded)
+        if not expanded:
+            self._release_config_form()
+        self._apply_visual_state()
+        self.row_height_changed.emit()
+
+    def _ensure_config_form(
+        self, config_class: type[bl_states.BeamlineStateConfig] = bl_states.DeviceStateConfig
+    ) -> PydanticWidgetForm:
+        if self._config_form is None:
+            self._config_form = PydanticWidgetForm(
+                config_class, parent=self._settings, client=self.client, read_only_fields={"name"}
+            )
+            self._config_form.changed.connect(self._update_settings_dirty_state)
+            self._config_form_host.addWidget(self._config_form)
+        return self._config_form
+
+    def _ensure_settings_form_current(self) -> PydanticWidgetForm:
+        if self._settings_form_stale:
+            self._populate_settings()
+            self.mark_current_settings_clean()
+        return self._ensure_config_form()
+
+    def _release_config_form(self) -> None:
+        if self._config_form is None:
+            return
+        self._config_form_host.removeWidget(self._config_form)
+        self._config_form.cleanup()
+        self._config_form.setParent(None)
+        self._config_form.deleteLater()
+        self._config_form = None
+        self._settings_baseline = {}
+        self._settings_form_stale = True
+        self._update_settings_dirty_state()
+
+    def _populate_settings(self) -> None:
+        self._populating_settings = True
+        try:
+            state_type = self._state_config.state_type if self._state_config is not None else ""
+            config_class = None
+            for state_class in SUPPORTED_BEAMLINE_STATES:
+                if state_type in {state_class.__name__, state_class.CONFIG_CLASS.state_type}:
+                    config_class = state_class.CONFIG_CLASS
+                    break
+            if config_class is None:
+                raise ValueError(f"Unsupported beamline state type '{state_type}'.")
+            config_form = self._ensure_config_form(config_class)
+            if config_form.model is not config_class:
+                config_form.set_model(config_class)
+            self._state_type_value.setText(state_type or "-")
+            config_form.set_partial_data(self._state_data_for_form(config_class))
+            self._settings_form_stale = False
+        finally:
+            self._populating_settings = False
+            self._update_settings_dirty_state()
+
+    def edited_config(self) -> bl_states.BeamlineStateConfig:
+        """Return the validated config currently represented by the expanded settings panel."""
+        config = self._ensure_settings_form_current().model_instance()
+        return config  # type: ignore[return-value]
+
+    def mark_current_settings_clean(self) -> None:
+        """Mark the current editor values as saved."""
+        config_form = self._ensure_config_form()
+        self._settings_baseline = config_form.raw_editable_data()
+        config_form.mark_clean()
+        self._update_settings_dirty_state()
+
+    @SafeSlot()
+    def _revert_settings(self) -> None:
+        self._populating_settings = True
+        try:
+            self._ensure_config_form().set_partial_data(self._settings_baseline)
+        finally:
+            self._populating_settings = False
+            self._update_settings_dirty_state()
+
+    def _update_settings_dirty_state(self) -> None:
+        if self._populating_settings:
+            return
+        if self._config_form is None:
+            self._settings_dirty_fields = set()
+            self._update_button.setEnabled(False)
+            self._revert_button.setEnabled(False)
+            return
+
+        self._settings_dirty_fields = self._config_form.dirty_fields() - {"name"}
+
+        has_changes = bool(self._settings_dirty_fields)
+        self._update_button.setEnabled(has_changes)
+        self._revert_button.setEnabled(has_changes)
+        self._apply_dirty_field_highlights()
+
+    def _apply_dirty_field_highlights(self) -> None:
+        if self._config_form is None:
+            return
+        for name, widget in self._config_form.widgets.items():
+            self._set_dirty_property(widget, name in self._settings_dirty_fields)
+
+    @staticmethod
+    def _set_dirty_property(widget: QWidget, dirty: bool) -> None:
+        widgets = [widget]
+        if isinstance(widget, OptionalValueWidget):
+            widgets.append(widget.value_widget)
+            if widget.value_widget.parentWidget() is not None:
+                widgets.append(widget.value_widget.parentWidget())
+        for target in widgets:
+            if target.property("beamlineStateDirty") == dirty:
+                continue
+            target.setProperty("beamlineStateDirty", dirty)
+            target.style().unpolish(target)
+            target.style().polish(target)
+            target.update()
+
+    @SafeSlot()
+    def _emit_update_requested(self) -> None:
+        if self._state_name is None:
+            return
+        if not self._settings_dirty_fields:
+            return
+        try:
+            config = self.edited_config()
+        except ValueError as exc:
+            QMessageBox.warning(self, "Invalid Beamline State", str(exc))
+            return
+        self.update_requested.emit(self._state_name, config)
+
+    @SafeSlot()
+    def _emit_remove_requested(self) -> None:
+        if self._state_name is None:
+            return
+        self.remove_requested.emit(self._state_name)
+
+    def _state_data_for_form(
+        self, config_class: type[bl_states.BeamlineStateConfig]
+    ) -> dict[str, Any]:
+        data: dict[str, Any] = {}
+        parameters = self._state_config.parameters if self._state_config is not None else {}
+        for name in config_class.model_fields:
+            if name == "name":
+                data[name] = self._state_name
+            elif name in parameters:
+                data[name] = parameters[name]
+        return data
+
+    @staticmethod
+    def _state_colors(status: str) -> dict[str, str]:
+        app = QApplication.instance()
+        palette = app.palette() if app is not None else QPalette()
+        theme = getattr(app, "theme", None) if app is not None else None
+        light_theme = get_theme_name() == "light"
+        accents = get_accent_colors()
+
+        card_bg = theme_color(theme, "CARD_BG", palette.window().color())
+        border = theme_color(theme, "BORDER", palette.mid().color())
+        foreground = theme_color(theme, "FG", palette.text().color())
+        on_primary = theme_color(theme, "ON_PRIMARY", QColor("#ffffff"))
+        warning = accents.warning
+        accent = {
+            "valid": accents.success,
+            "invalid": accents.emergency,
+            "warning": warning,
+            "unknown": accents.default,
+        }.get(status, accents.default)
+
+        gradient_alpha = 18 if light_theme else 62
+        gradient_stop = "0.38" if light_theme else "0.62"
+        background_mix = 0.0 if light_theme else 0.10
+        card_border_mix = 0.34 if light_theme else 0.45
+        border_mix = 0.34 if light_theme else 0.35
+
+        return {
+            "accent": accent.name(),
+            "on_accent": on_primary.name(),
+            "card_background": card_bg.name(),
+            "card_border": Colors._blend(border, accent, card_border_mix).name(),
+            "gradient_accent": rgba(accent, gradient_alpha),
+            "gradient_stop": gradient_stop,
+            "background": Colors._blend(card_bg, accent, background_mix).name(),
+            "border": Colors._blend(border, accent, border_mix).name(),
+            "dirty_background": Colors._blend(
+                card_bg, warning, 0.12 if light_theme else 0.18
+            ).name(),
+            "dirty_border": Colors._blend(border, warning, 0.70).name(),
+            "foreground": foreground.name(),
+            "muted": Colors._blend(card_bg, foreground, 0.66).name(),
+            "shadow": "#00000024" if light_theme else "#00000078",
+            "shadow_blur": "24" if light_theme else "18",
+            "shadow_y_offset": "3" if light_theme else "2",
+        }
+
+    def cleanup(self) -> None:
+        if self._state_name is not None:
+            self.bec_dispatcher.disconnect_slot(
+                self.update_state, MessageEndpoints.beamline_state(self._state_name)
+            )
+        if self._config_form is not None:
+            self._config_form.cleanup()
+        super().cleanup()

bec_widgets/widgets/services/beamline_states/dialogs.py

@@ -0,0 +1,263 @@
+from __future__ import annotations
+
+import slugify
+from bec_lib import bl_states
+from qtpy.QtWidgets import (
+    QCheckBox,
+    QComboBox,
+    QDialog,
+    QDialogButtonBox,
+    QFormLayout,
+    QGroupBox,
+    QHBoxLayout,
+    QLineEdit,
+    QMessageBox,
+    QPushButton,
+    QVBoxLayout,
+    QWidget,
+)
+
+from bec_widgets.utils.error_popups import SafeSlot
+from bec_widgets.utils.forms_from_types.pydantic_widget_form import PydanticWidgetForm
+from bec_widgets.utils.name_utils import pascal_to_snake
+from bec_widgets.widgets.control.device_input.device_combobox.device_combobox import DeviceComboBox
+
+BEAMLINE_STATE_STATUS_LABELS = {
+    "valid": "VALID",
+    "invalid": "INVALID",
+    "warning": "WARNING",
+    "unknown": "UNKNOWN",
+}
+
+SUPPORTED_BEAMLINE_STATES: tuple[type[bl_states.BeamlineState], ...] = (
+    bl_states.DeviceWithinLimitsState,
+    bl_states.ShutterState,
+)
+
+
+class AddBeamlineStateDialog(QDialog):
+    """Dialog for creating supported beamline state configurations."""
+
+    def __init__(self, parent: QWidget | None = None, client=None) -> None:
+        super().__init__(parent=parent)
+        self.setWindowTitle("Add Beamline State")
+        self._cleaned_up = False
+        self._client = client
+        self._config: bl_states.BeamlineStateConfig | None = None
+        self._auto_generated_name: str | None = None
+
+        self._type_combo = QComboBox(self)
+        for state_class in SUPPORTED_BEAMLINE_STATES:
+            self._type_combo.addItem(state_class.__name__, state_class)
+        self._type_combo.currentIndexChanged.connect(self._update_config_form)
+
+        self._form = QFormLayout()
+        self._form.addRow("State type", self._type_combo)
+        self._config_form_host = QVBoxLayout()
+        self._config_form: PydanticWidgetForm | None = None
+
+        self._buttons = QDialogButtonBox(
+            QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel, parent=self
+        )
+        self._buttons.accepted.connect(self.accept)
+        self._buttons.rejected.connect(self.reject)
+
+        layout = QVBoxLayout(self)
+        layout.addLayout(self._form)
+        layout.addLayout(self._config_form_host)
+        layout.addWidget(self._buttons)
+        self.setLayout(layout)
+        self._update_config_form()
+        self._fit_to_contents()
+
+    def config(self) -> bl_states.BeamlineStateConfig:
+        state_class = self._selected_state_class()
+        config_class = state_class.CONFIG_CLASS
+        name = self._state_name()
+        data = self._config_form.get_data()
+        data["name"] = name
+        return config_class.model_validate(data)
+
+    def accept(self) -> None:
+        try:
+            self._config = self.config()
+        except Exception as exc:
+            QMessageBox.warning(self, "Invalid Beamline State", str(exc))
+            return
+        super().accept()
+
+    @property
+    def config_result(self) -> bl_states.BeamlineStateConfig:
+        if self._config is None:
+            raise RuntimeError("Beamline state dialog was not accepted with a valid config.")
+        return self._config
+
+    def cleanup(self) -> None:
+        if self._cleaned_up:
+            return
+        self._cleaned_up = True
+        if self._config_form is not None:
+            self._config_form.cleanup()
+            self._config_form.close()
+            self._config_form.deleteLater()
+
+    def closeEvent(self, event) -> None:  # noqa: N802
+        self.cleanup()
+        super().closeEvent(event)
+
+    @SafeSlot(str)
+    def _on_valid_device_selected(self, device: str) -> None:
+        if self._cleaned_up:
+            return
+        name_widget = self._config_form.input_widget("name")
+        current_name = name_widget.text().strip()
+        if current_name and current_name != self._auto_generated_name:
+            return
+        suffix = slugify.slugify(
+            pascal_to_snake(self._selected_state_class().__name__), separator="_"
+        )
+        generated_name = f"{slugify.slugify(device, separator='_')}_{suffix}"
+        self._auto_generated_name = generated_name
+        name_widget.setText(generated_name)
+
+    @SafeSlot(int)
+    def _update_config_form(self, _index: int = 0) -> None:
+        previous_data = self._config_form.raw_data() if self._config_form is not None else {}
+        if self._config_form is not None:
+            self._config_form_host.removeWidget(self._config_form)
+            self._config_form.cleanup()
+            self._config_form.setParent(None)
+            self._config_form.deleteLater()
+        config_class = self._selected_state_class().CONFIG_CLASS
+        data = {
+            key: value
+            for key, value in previous_data.items()
+            if key in config_class.model_fields and value is not None
+        }
+        self._config_form = PydanticWidgetForm(config_class, parent=self, client=self._client)
+        self._config_form.set_partial_data(data)
+        self._config_form_host.addWidget(self._config_form)
+        for device_widget in self._config_form.input_widgets_by_type(DeviceComboBox):
+            device_widget.device_selected.connect(self._on_valid_device_selected)
+        self._fit_to_contents()
+
+    def _fit_to_contents(self) -> None:
+        self.setMinimumSize(0, 0)
+        self.setMaximumSize(16777215, 16777215)
+        self.layout().activate()
+        self.setFixedSize(self.sizeHint().expandedTo(self.minimumSizeHint()))
+
+    def _selected_state_class(self) -> type[bl_states.BeamlineState]:
+        state_class = self._type_combo.currentData()
+        if state_class is None:
+            raise RuntimeError("No beamline state class selected.")
+        return state_class
+
+    def _state_name(self) -> str:
+        name_widget = self._config_form.input_widget("name")
+        raw_name = name_widget.text().strip()
+        if not raw_name:
+            raise ValueError("Name is required.")
+        name = slugify.slugify(raw_name, separator="_")
+        name_widget.setText(name)
+        return name
+
+
+class StatusFilterDialog(QDialog):
+    """Dialog for selecting visible beamline state statuses."""
+
+    def __init__(self, selected_statuses: set[str] | None, parent: QWidget | None = None) -> None:
+        super().__init__(parent=parent)
+        self.setWindowTitle("Filter Beamline State Status")
+        self._checkboxes: dict[str, QCheckBox] = {}
+
+        controls = QHBoxLayout()
+        select_all = QPushButton("Select all", self)
+        clear = QPushButton("Clear", self)
+        select_all.clicked.connect(lambda: self._set_all(True))
+        clear.clicked.connect(lambda: self._set_all(False))
+        controls.addWidget(select_all)
+        controls.addWidget(clear)
+        controls.addStretch(1)
+
+        list_layout = QVBoxLayout()
+        for status, label in BEAMLINE_STATE_STATUS_LABELS.items():
+            checkbox = QCheckBox(label, self)
+            checkbox.setChecked(selected_statuses is None or status in selected_statuses)
+            self._checkboxes[status] = checkbox
+            list_layout.addWidget(checkbox)
+        list_layout.addStretch(1)
+
+        box = QGroupBox("Displayed status", self)
+        box.setLayout(list_layout)
+
+        buttons = QDialogButtonBox(
+            QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel, parent=self
+        )
+        buttons.accepted.connect(self.accept)
+        buttons.rejected.connect(self.reject)
+
+        layout = QVBoxLayout(self)
+        layout.addLayout(controls)
+        layout.addWidget(box)
+        layout.addWidget(buttons)
+        self.setLayout(layout)
+
+    def selected_statuses(self) -> set[str] | None:
+        selected = {status for status, checkbox in self._checkboxes.items() if checkbox.isChecked()}
+        if selected == set(self._checkboxes):
+            return None
+        return selected
+
+    def _set_all(self, checked: bool) -> None:
+        for checkbox in self._checkboxes.values():
+            checkbox.setChecked(checked)
+
+
+class DeviceFilterDialog(QDialog):
+    """Dialog for filtering beamline states by configured device."""
+
+    def __init__(
+        self,
+        devices: list[str],
+        selected_devices: set[str] | None,
+        device_filter_text: str,
+        parent: QWidget | None = None,
+    ) -> None:
+        super().__init__(parent=parent)
+        self.setWindowTitle("Filter Beamline State Devices")
+        self._checkboxes: dict[str, QCheckBox] = {}
+
+        self._device_text = QLineEdit(self)
+        self._device_text.setPlaceholderText("Device name or comma-separated names")
+        self._device_text.setText(device_filter_text)
+
+        list_layout = QVBoxLayout()
+        for device in devices:
+            checkbox = QCheckBox(device, self)
+            checkbox.setChecked(selected_devices is not None and device in selected_devices)
+            self._checkboxes[device] = checkbox
+            list_layout.addWidget(checkbox)
+        list_layout.addStretch(1)
+
+        box = QGroupBox("Known devices", self)
+        box.setLayout(list_layout)
+
+        buttons = QDialogButtonBox(
+            QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel, parent=self
+        )
+        buttons.accepted.connect(self.accept)
+        buttons.rejected.connect(self.reject)
+
+        layout = QVBoxLayout(self)
+        layout.addWidget(self._device_text)
+        layout.addWidget(box)
+        layout.addWidget(buttons)
+        self.setLayout(layout)
+
+    def selected_devices(self) -> set[str] | None:
+        selected = {device for device, checkbox in self._checkboxes.items() if checkbox.isChecked()}
+        return selected or None
+
+    def filter_text(self) -> str:
+        return self._device_text.text().strip()

bec_widgets/widgets/services/beamline_states/register_beamline_state_manager.py

@@ -0,0 +1,17 @@
+def main():  # pragma: no cover
+    from qtpy import PYSIDE6
+
+    if not PYSIDE6:
+        print("PYSIDE6 is not available in the environment. Cannot patch designer.")
+        return
+    from PySide6.QtDesigner import QPyDesignerCustomWidgetCollection
+
+    from bec_widgets.widgets.services.beamline_states.beamline_state_manager_plugin import (
+        BeamlineStateManagerPlugin,
+    )
+
+    QPyDesignerCustomWidgetCollection.addCustomWidget(BeamlineStateManagerPlugin())
+
+
+if __name__ == "__main__":  # pragma: no cover
+    main()

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "bec_widgets"
-version = "3.14.0"
+version = "3.15.0"
 description = "BEC Widgets"
 requires-python = ">=3.11"
 classifiers = [
@@ -12,8 +12,8 @@ dependencies = [
   "PyJWT~=2.9",
   "PySide6==6.9.0",
   "PySide6-QtAds==4.4.0",
-  "bec_ipython_client~=3.107,>=3.107.2", # needed for jupyter console
-  "bec_lib~=3.107,>=3.107.2",
+  "bec_ipython_client~=3.134", # needed for jupyter console
+  "bec_lib~=3.134",
   "bec_qthemes~=1.0, >=1.3.4",
   "black>=26,<27",                       # needed for bw-generate-cli
   "copier~=9.7",
@@ -24,6 +24,7 @@ dependencies = [
   "pydantic~=2.0",
   "pylsp-bec~=1.2",
   "pyqtgraph==0.13.7",
+  "python-slugify~=8.0",
   "qtconsole~=5.5, >=5.5.1",             # needed for jupyter console
   "qtmonaco~=0.8, >=0.8.1",
   "qtpy~=2.4",
@@ -74,6 +75,7 @@ qtermwidget = ["pyside6_qtermwidget"]
 
 
 
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"

tests/end-2-end/test_beamline_state_manager_e2e.py

@@ -0,0 +1,73 @@
+from __future__ import annotations
+
+import uuid
+
+import pytest
+from bec_lib.bl_states import DeviceWithinLimitsStateConfig
+
+# pylint: disable=unused-argument
+# pylint: disable=redefined-outer-name
+# pylint: disable=protected-access
+
+
+def _delete_state_if_present(bec, state_name: str) -> None:
+    if hasattr(bec.beamline_states, state_name):
+        bec.beamline_states.delete(state_name)
+
+
+@pytest.mark.timeout(100)
+def test_beamline_state_manager_adds_updates_and_deletes_state_e2e(
+    qtbot, bec_client_lib, connected_client_gui_obj
+):
+    """
+    Verify the real BEC beamline-state flow is reflected by a BeamlineStateManager
+    running in the GUI server, accessed through the dock area RPC interface.
+    """
+    gui = connected_client_gui_obj
+    dock_area = gui.bec
+    bec = bec_client_lib
+    dev = bec.device_manager.devices
+    scans = bec.scans
+
+    state_name = f"samx_widget_limits_{uuid.uuid4().hex[:8]}"
+    config = DeviceWithinLimitsStateConfig(
+        name=state_name, device="samx", signal="samx", low_limit=0.0, high_limit=10.0, tolerance=1.0
+    )
+
+    manager = dock_area.new("BeamlineStateManager")
+    qtbot.waitUntil(lambda: manager._gui_id in gui._server_registry, timeout=5000)
+
+    def state_entry() -> dict[str, str]:
+        return manager.state_summary().get(state_name, {})
+
+    _delete_state_if_present(bec, state_name)
+
+    try:
+        bec.beamline_states.add(config)
+
+        qtbot.waitUntil(lambda: hasattr(bec.beamline_states, state_name), timeout=10000)
+        qtbot.waitUntil(lambda: state_name in manager.state_summary(), timeout=10000)
+
+        scans.umv(dev.samx, 5, relative=False).wait()
+        qtbot.waitUntil(
+            lambda: getattr(bec.beamline_states, state_name).get()["status"] == "valid",
+            timeout=10000,
+        )
+        qtbot.waitUntil(lambda: state_entry().get("status") == "valid", timeout=10000)
+        assert state_entry()["label"] == "Device samx within limits"
+
+        scans.umv(dev.samx, 20, relative=False).wait()
+        qtbot.waitUntil(
+            lambda: getattr(bec.beamline_states, state_name).get()["status"] == "invalid",
+            timeout=10000,
+        )
+        qtbot.waitUntil(lambda: state_entry().get("status") == "invalid", timeout=10000)
+        assert state_entry()["label"] == "Device samx out of limits"
+
+        bec.beamline_states.delete(state_name)
+        qtbot.waitUntil(lambda: not hasattr(bec.beamline_states, state_name), timeout=10000)
+        qtbot.waitUntil(lambda: state_name not in manager.state_summary(), timeout=10000)
+
+    finally:
+        _delete_state_if_present(bec, state_name)
+        scans.umv(dev.samx, 0, relative=False).wait()

tests/unit_tests/test_beamline_state_pill.py

@@ -0,0 +1,588 @@
+import shiboken6
+from bec_lib import bl_states, messages
+from qtpy.QtCore import QCoreApplication, QEvent, Qt
+from qtpy.QtWidgets import QMessageBox
+
+from bec_widgets.utils.toolbars.toolbar import ModularToolBar
+from bec_widgets.utils.widget_io import WidgetIO
+from bec_widgets.widgets.services.beamline_states import beamline_state_manager as manager_module
+from bec_widgets.widgets.services.beamline_states import beamline_state_pill as pill_module
+from bec_widgets.widgets.services.beamline_states.beamline_state_manager import BeamlineStateManager
+from bec_widgets.widgets.services.beamline_states.beamline_state_pill import BeamlineStatePill
+from bec_widgets.widgets.services.beamline_states.dialogs import AddBeamlineStateDialog
+
+from .client_mocks import mocked_client
+from .conftest import create_widget
+
+
+def _state(name: str, state_type: str, parameters: dict | None = None):
+    return messages.BeamlineStateConfig(
+        name=name, state_type=state_type, parameters=parameters or {}
+    )
+
+
+def _wire_state(
+    state_class: type[bl_states.BeamlineState], config: bl_states.BeamlineStateConfig
+) -> messages.BeamlineStateConfig:
+    return messages.BeamlineStateConfig(
+        name=config.name,
+        state_type=state_class.__name__,
+        parameters=config.model_dump(exclude={"name"}),
+    )
+
+
+def _limits_state(name: str = "limits", **overrides) -> messages.BeamlineStateConfig:
+    values = {
+        "device": "samx",
+        "signal": "samx",
+        "low_limit": 0.0,
+        "high_limit": 10.0,
+        "tolerance": 0.1,
+    }
+    values.update(overrides)
+    config = bl_states.DeviceWithinLimitsState.CONFIG_CLASS(name=name, **values)
+    return _wire_state(bl_states.DeviceWithinLimitsState, config)
+
+
+def _shutter_state(
+    name: str = "shutter_open", device: str = "samy"
+) -> messages.BeamlineStateConfig:
+    config = bl_states.ShutterState.CONFIG_CLASS(name=name, device=device)
+    return _wire_state(bl_states.ShutterState, config)
+
+
+def test_beamline_state_pill_updates_from_message(qtbot, mocked_client):
+    pill = create_widget(qtbot, BeamlineStatePill, state_name="shutter_open", client=mocked_client)
+    pill.update_state({"name": "shutter_open", "status": "valid", "label": "Shutter is open."}, {})
+
+    assert pill._state_name == "shutter_open"
+    assert pill._name_label.text() == "shutter_open"
+    assert pill._status_label.text() == "VALID"
+    assert pill._detail_label.text() == "Shutter is open."
+    assert not pill._icon_label.pixmap().isNull()
+    assert pill.toolTip() == "Shutter is open."
+
+
+def test_beamline_state_pill_ignores_other_states(qtbot, mocked_client):
+    pill = create_widget(qtbot, BeamlineStatePill, state_name="shutter_open", client=mocked_client)
+    pill.update_state(
+        {"name": "other_state", "status": "invalid", "label": "Should be ignored."}, {}
+    )
+
+    assert pill._status_label.text() == "UNKNOWN"
+    assert pill.toolTip() == "No state information available."
+
+
+def test_beamline_state_pill_expands_and_emits_updated_limits(qtbot, mocked_client):
+    limits_pill = create_widget(qtbot, BeamlineStatePill, state_name="limits", client=mocked_client)
+    limits_pill.set_state_config(_limits_state())
+
+    assert limits_pill._settings.isHidden()
+    assert limits_pill._config_form is None
+    assert not limits_pill._update_button.isEnabled()
+    assert not limits_pill._revert_button.isEnabled()
+
+    qtbot.mouseClick(limits_pill._header, Qt.MouseButton.LeftButton)
+    assert limits_pill._config_form is not None
+    high_limit = limits_pill._config_form.input_widget("high_limit")
+    high_limit.setValue(20.0)
+
+    assert not limits_pill._settings.isHidden()
+    assert limits_pill._update_button.isEnabled()
+    assert limits_pill._revert_button.isEnabled()
+    assert (
+        limits_pill._config_form.field_widget("high_limit").property("beamlineStateDirty") is True
+    )
+    assert limits_pill._config_form.get_data()["device"] == "samx"
+    assert limits_pill.edited_config().high_limit == 20.0
+
+    with qtbot.waitSignal(limits_pill.update_requested) as signal:
+        limits_pill._update_button.click()
+
+    assert signal.args[0] == "limits"
+    assert isinstance(signal.args[1], bl_states.DeviceWithinLimitsState.CONFIG_CLASS)
+    assert signal.args[1].device == "samx"
+    assert signal.args[1].signal == "samx"
+    assert signal.args[1].low_limit == 0.0
+    assert signal.args[1].high_limit == 20.0
+    assert signal.args[1].tolerance == 0.1
+    assert not limits_pill._settings.isHidden()
+
+
+def test_beamline_state_pill_first_expand_uses_config_class_without_rebuild(
+    qtbot, mocked_client, monkeypatch
+):
+    limits_pill = create_widget(qtbot, BeamlineStatePill, state_name="limits", client=mocked_client)
+    set_model_calls = []
+    original_set_model = pill_module.PydanticWidgetForm.set_model
+
+    def set_model_spy(self, model, data=None):
+        set_model_calls.append(model)
+        return original_set_model(self, model, data=data)
+
+    monkeypatch.setattr(pill_module.PydanticWidgetForm, "set_model", set_model_spy)
+    limits_pill.set_state_config(_limits_state())
+
+    limits_pill.set_expanded(True)
+    assert limits_pill._config_form is not None
+    assert set_model_calls == []
+
+
+def test_beamline_state_pill_reverts_changed_settings(qtbot, mocked_client):
+    limits_pill = create_widget(qtbot, BeamlineStatePill, state_name="limits", client=mocked_client)
+    limits_pill.set_state_config(_limits_state())
+
+    limits_pill.set_expanded(True)
+    assert limits_pill._config_form is not None
+    low_limit = limits_pill._config_form.input_widget("low_limit")
+    low_limit.setValue(-5.0)
+
+    assert limits_pill._update_button.isEnabled()
+    assert limits_pill._config_form.field_widget("low_limit").property("beamlineStateDirty") is True
+
+    limits_pill._revert_button.click()
+
+    assert low_limit.value() == 0.0
+    assert not limits_pill._update_button.isEnabled()
+    assert not limits_pill._revert_button.isEnabled()
+    assert (
+        limits_pill._config_form.field_widget("low_limit").property("beamlineStateDirty") is False
+    )
+
+
+def test_beamline_state_pill_releases_form_on_collapse(qtbot, mocked_client):
+    limits_pill = create_widget(qtbot, BeamlineStatePill, state_name="limits", client=mocked_client)
+    limits_pill.set_state_config(_limits_state())
+
+    limits_pill.set_expanded(True)
+    device_widget = limits_pill._config_form.input_widget("device")
+
+    limits_pill.set_expanded(False)
+    QCoreApplication.sendPostedEvents(None, QEvent.Type.DeferredDelete)
+
+    assert limits_pill._config_form is None
+    assert not shiboken6.isValid(device_widget)
+
+    limits_pill.set_expanded(True)
+
+    assert limits_pill._config_form is not None
+    assert limits_pill._config_form.input_widget("high_limit").value() == 10.0
+    assert not limits_pill._update_button.isEnabled()
+
+
+def test_beamline_state_pill_collapse_discards_unsaved_edits(qtbot, mocked_client):
+    limits_pill = create_widget(qtbot, BeamlineStatePill, state_name="limits", client=mocked_client)
+    limits_pill.set_state_config(_limits_state())
+
+    limits_pill.set_expanded(True)
+    limits_pill._config_form.input_widget("high_limit").setValue(20.0)
+    assert limits_pill._update_button.isEnabled()
+
+    limits_pill.set_expanded(False)
+
+    assert limits_pill._config_form is None
+
+    limits_pill.set_expanded(True)
+
+    assert limits_pill._config_form.input_widget("high_limit").value() == 10.0
+    assert not limits_pill._update_button.isEnabled()
+
+
+def test_beamline_state_pill_does_not_override_themed_input_controls(qtbot, mocked_client):
+    limits_pill = create_widget(qtbot, BeamlineStatePill, state_name="limits", client=mocked_client)
+    limits_pill.set_state_config(_limits_state())
+    limits_pill.set_expanded(True)
+
+    stylesheet = limits_pill.styleSheet()
+
+    assert "QAbstractSpinBox" not in stylesheet
+    assert "QComboBox" not in stylesheet
+    assert "QCheckBox::indicator" not in stylesheet
+
+
+def test_beamline_state_manager_adds_and_removes_pills(qtbot, mocked_client):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    beamline_state_manager.update_available_states(
+        {
+            "states": [
+                _state("shutter_open", "ShutterState"),
+                _state("limits", "DeviceWithinLimitsState"),
+            ]
+        },
+        {},
+    )
+
+    assert sorted(beamline_state_manager._state_pills) == ["limits", "shutter_open"]
+    assert beamline_state_manager._model.rowCount() == 2
+    assert beamline_state_manager._state_pills["shutter_open"]._name_label.text() == "shutter_open"
+    assert not beamline_state_manager._empty_label.isVisible()
+
+    beamline_state_manager._state_pills["limits"].update_state(
+        {"name": "limits", "status": "valid", "label": "Within limits."}, {}
+    )
+    summary = beamline_state_manager.state_summary()
+    assert summary["limits"] == {"status": "valid", "label": "Within limits."}
+    assert summary["shutter_open"]["status"] == "unknown"
+
+    beamline_state_manager.update_available_states(
+        {"states": [_state("limits", "DeviceWithinLimitsState")]}, {}
+    )
+
+    assert sorted(beamline_state_manager._state_pills) == ["limits"]
+    assert beamline_state_manager._model.rowCount() == 1
+
+
+def test_beamline_state_manager_ignores_unchanged_available_states(qtbot, mocked_client):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    content = {"states": [_limits_state()]}
+
+    beamline_state_manager.update_available_states(content, {})
+    pill = beamline_state_manager._state_pills["limits"]
+
+    beamline_state_manager.update_available_states(content, {})
+
+    assert beamline_state_manager._state_pills["limits"] is pill
+    assert pill._config_form is None
+
+
+def test_beamline_state_manager_adds_state_without_recreating_existing_pills(qtbot, mocked_client):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    limits_state = _limits_state()
+    shutter_state = _state("shutter_open", "ShutterState")
+
+    beamline_state_manager.update_available_states({"states": [limits_state]}, {})
+    pill = beamline_state_manager._state_pills["limits"]
+    pill.set_expanded(True)
+    config_form = pill._config_form
+
+    beamline_state_manager.update_available_states({"states": [limits_state, shutter_state]}, {})
+
+    assert beamline_state_manager._state_pills["limits"] is pill
+    assert pill._config_form is config_form
+    assert pill.is_expanded()
+    assert sorted(beamline_state_manager._state_pills) == ["limits", "shutter_open"]
+
+
+def test_beamline_state_manager_header_click_expands_pill_once(qtbot, mocked_client):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    beamline_state_manager.update_available_states(
+        {"states": [_state("limits", "DeviceWithinLimitsState", {"device": "samx"})]}, {}
+    )
+
+    pill = beamline_state_manager._state_pills["limits"]
+    assert pill._settings.isHidden()
+
+    qtbot.mouseClick(pill._header, Qt.MouseButton.LeftButton)
+
+    assert not pill._settings.isHidden()
+
+
+def test_beamline_state_manager_preserves_expanded_pill_on_refresh(qtbot, mocked_client):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    state = _state("limits", "DeviceWithinLimitsState", {"device": "samx", "high_limit": 10.0})
+    beamline_state_manager.update_available_states({"states": [state]}, {})
+
+    beamline_state_manager._state_pills["limits"].set_expanded(True)
+    beamline_state_manager.update_available_states({"states": [state]}, {})
+
+    assert beamline_state_manager._state_pills["limits"].is_expanded()
+    assert not beamline_state_manager._state_pills["limits"]._settings.isHidden()
+
+
+def test_beamline_state_manager_propagates_idle_card_background(qtbot, mocked_client):
+    idle_card_manager = create_widget(
+        qtbot, BeamlineStateManager, client=mocked_client, idle_card_background=True
+    )
+    idle_card_manager.update_available_states(
+        {"states": [_state("limits", "DeviceWithinLimitsState", {"device": "samx"})]}, {}
+    )
+
+    assert idle_card_manager._state_pills["limits"]._idle_card_background is True
+
+    idle_card_manager.idle_card_background = False
+
+    assert idle_card_manager._state_pills["limits"]._idle_card_background is False
+
+
+def test_beamline_state_manager_filters_status(qtbot, mocked_client):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    beamline_state_manager.update_available_states(
+        {"states": [_shutter_state(), _limits_state()]}, {}
+    )
+
+    assert isinstance(beamline_state_manager._toolbar, ModularToolBar)
+    assert not beamline_state_manager._toolbar.components.exists("refresh")
+
+    beamline_state_manager._state_pills["limits"].update_state(
+        {"name": "limits", "status": "valid", "label": "Within limits."}, {}
+    )
+    beamline_state_manager._state_pills["shutter_open"].update_state(
+        {"name": "shutter_open", "status": "invalid", "label": "Closed."}, {}
+    )
+    beamline_state_manager._selected_statuses = {"valid"}
+    beamline_state_manager._apply_filters()
+
+    assert not beamline_state_manager._hidden_summary.isHidden()
+    assert "1 state is hidden" in beamline_state_manager._hidden_summary.text()
+    assert not beamline_state_manager._view.isRowHidden(
+        beamline_state_manager._model.index_for_name("limits").row()
+    )
+    assert beamline_state_manager._view.isRowHidden(
+        beamline_state_manager._model.index_for_name("shutter_open").row()
+    )
+
+    beamline_state_manager._hidden_summary.click()
+
+    assert not beamline_state_manager._view.isRowHidden(
+        beamline_state_manager._model.index_for_name("shutter_open").row()
+    )
+    assert shiboken6.isValid(beamline_state_manager._state_pills["shutter_open"])
+
+    beamline_state_manager._hidden_summary.click()
+
+    assert beamline_state_manager._view.isRowHidden(
+        beamline_state_manager._model.index_for_name("shutter_open").row()
+    )
+    assert shiboken6.isValid(beamline_state_manager._state_pills["shutter_open"])
+
+
+def test_beamline_state_manager_status_filter_reacts_to_state_changes(qtbot, mocked_client):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    beamline_state_manager.update_available_states(
+        {"states": [_state("limits", "DeviceWithinLimitsState", {"device": "samx"})]}, {}
+    )
+
+    beamline_state_manager._selected_statuses = {"valid"}
+    beamline_state_manager._state_pills["limits"].update_state(
+        {"name": "limits", "status": "valid", "label": "Within limits."}, {}
+    )
+
+    assert beamline_state_manager._hidden_summary.isHidden()
+
+    beamline_state_manager._state_pills["limits"].update_state(
+        {"name": "limits", "status": "invalid", "label": "Out of limits."}, {}
+    )
+
+    assert not beamline_state_manager._hidden_summary.isHidden()
+    assert beamline_state_manager._view.isRowHidden(
+        beamline_state_manager._model.index_for_name("limits").row()
+    )
+
+
+def test_beamline_state_manager_filters_devices(qtbot, mocked_client, monkeypatch):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    beamline_state_manager.update_available_states(
+        {
+            "states": [
+                _limits_state(name="samx_limits"),
+                _limits_state(name="samy_limits", device="samy"),
+            ]
+        },
+        {},
+    )
+
+    beamline_state_manager._device_filter_text = "samx"
+    beamline_state_manager._apply_filters()
+
+    assert not beamline_state_manager._hidden_summary.isHidden()
+    assert "1 state is hidden" in beamline_state_manager._hidden_summary.text()
+
+    captured = {}
+
+    class FakeDeviceFilterDialog:
+        def __init__(self, devices, selected_devices, device_filter_text, parent):
+            captured["devices"] = devices
+            captured["selected_devices"] = selected_devices
+            captured["device_filter_text"] = device_filter_text
+            captured["parent"] = parent
+
+        def exec(self):
+            return 0
+
+    monkeypatch.setattr(manager_module, "DeviceFilterDialog", FakeDeviceFilterDialog)
+
+    beamline_state_manager.open_device_filter_dialog()
+
+    assert captured["devices"] == ["samx", "samy"]
+    assert captured["device_filter_text"] == "samx"
+    assert captured["parent"] is beamline_state_manager
+
+
+def test_beamline_state_manager_collapse_all(qtbot, mocked_client):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    beamline_state_manager.update_available_states(
+        {"states": [_limits_state(), _state("shutter_open", "ShutterState", {"device": "samy"})]},
+        {},
+    )
+
+    for pill in beamline_state_manager._state_pills.values():
+        pill.set_expanded(True)
+    assert all(pill.is_expanded() for pill in beamline_state_manager._state_pills.values())
+
+    collapse_action = beamline_state_manager._toolbar.components.get_action("collapse_all")
+    collapse_action.action.trigger()
+
+    assert not any(pill.is_expanded() for pill in beamline_state_manager._state_pills.values())
+
+
+def test_beamline_state_manager_backend_echo_repopulates_expanded_pill(qtbot, mocked_client):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    beamline_state_manager.update_available_states({"states": [_limits_state()]}, {})
+
+    pill = beamline_state_manager._state_pills["limits"]
+    pill.set_expanded(True)
+    high_limit = pill._config_form.input_widget("high_limit")
+    high_limit.setValue(20.0)
+
+    assert pill._update_button.isEnabled()
+
+    beamline_state_manager.update_available_states({"states": [_limits_state(high_limit=20.0)]}, {})
+
+    assert pill.is_expanded()
+    assert high_limit.value() == 20.0
+    assert not pill._update_button.isEnabled()
+    assert pill._config_form.dirty_fields() == set()
+
+
+def test_beamline_state_manager_updates_state_parameters(qtbot, mocked_client):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+    beamline_state_manager.update_available_states({"states": [_limits_state()]}, {})
+
+    class StateClient:
+        def __init__(self):
+            self.parameters = None
+
+        def update_parameters(self, **kwargs):
+            self.parameters = kwargs
+
+    class StateManager:
+        def __init__(self):
+            self.limits = StateClient()
+
+    mocked_client.beamline_states = StateManager()
+    pill = beamline_state_manager._state_pills["limits"]
+    pill.set_expanded(True)
+    high_limit = pill._config_form.input_widget("high_limit")
+    high_limit.setValue(20.0)
+
+    assert pill._update_button.isEnabled()
+
+    beamline_state_manager._update_state_parameters("limits", pill.edited_config())
+
+    assert mocked_client.beamline_states.limits.parameters == {
+        "device": "samx",
+        "signal": "samx",
+        "low_limit": 0.0,
+        "high_limit": 20.0,
+        "tolerance": 0.1,
+    }
+    assert not pill._update_button.isEnabled()
+    assert pill._config_form.field_widget("high_limit").property("beamlineStateDirty") is False
+
+
+def test_beamline_state_manager_removes_state(qtbot, mocked_client, monkeypatch):
+    beamline_state_manager = create_widget(qtbot, BeamlineStateManager, client=mocked_client)
+
+    class StateManager:
+        def __init__(self):
+            self.deleted = None
+
+        def delete(self, state_name):
+            self.deleted = state_name
+
+    mocked_client.beamline_states = StateManager()
+    monkeypatch.setattr(
+        QMessageBox, "question", lambda *args, **kwargs: QMessageBox.StandardButton.Yes
+    )
+
+    beamline_state_manager._remove_state_requested("limits")
+
+    assert mocked_client.beamline_states.deleted == "limits"
+
+
+def test_add_beamline_state_dialog_uses_generated_widgets_and_normalizes_name(qtbot, mocked_client):
+    add_state_dialog = create_widget(qtbot, AddBeamlineStateDialog, client=mocked_client)
+    limits_index = add_state_dialog._type_combo.findText(bl_states.DeviceWithinLimitsState.__name__)
+    assert limits_index >= 0
+    add_state_dialog._type_combo.setCurrentIndex(limits_index)
+
+    assert add_state_dialog._config_form.model is bl_states.DeviceWithinLimitsState.CONFIG_CLASS
+
+    name = add_state_dialog._config_form.input_widget("name")
+    device = add_state_dialog._config_form.input_widget("device")
+    signal = add_state_dialog._config_form.input_widget("signal")
+    low_limit = add_state_dialog._config_form.field_widget("low_limit")
+    high_limit = add_state_dialog._config_form.field_widget("high_limit")
+
+    name.setText("samx-limits")
+    WidgetIO.set_value(device, "samx")
+    WidgetIO.set_value(signal, "samx")
+    low_limit.checkbox.setChecked(True)
+    high_limit.checkbox.setChecked(True)
+    high_limit.value_widget.setValue(15.0)
+
+    config = add_state_dialog.config()
+
+    assert config.name == "samx_limits"
+    assert config.device == "samx"
+    assert config.signal == "samx"
+    assert config.low_limit == 0.0
+    assert config.high_limit == 15.0
+
+
+def test_add_beamline_state_dialog_generates_name_only_after_valid_device_selection(
+    qtbot, mocked_client
+):
+    add_state_dialog = create_widget(qtbot, AddBeamlineStateDialog, client=mocked_client)
+    name = add_state_dialog._config_form.input_widget("name")
+    device = add_state_dialog._config_form.input_widget("device")
+
+    device.setCurrentText("s")
+
+    assert name.text() == ""
+
+    device.set_device("samx")
+
+    assert name.text() == "samx_device_within_limits_state"
+
+
+def test_add_beamline_state_dialog_switches_state_type_without_collapsing(qtbot, mocked_client):
+    add_state_dialog = create_widget(qtbot, AddBeamlineStateDialog, client=mocked_client)
+    initial_height = add_state_dialog.height()
+    limits_index = add_state_dialog._type_combo.findText("DeviceWithinLimitsState")
+    assert limits_index >= 0
+    shutter_index = add_state_dialog._type_combo.findText("ShutterState")
+    assert shutter_index >= 0
+
+    add_state_dialog._type_combo.setCurrentIndex(shutter_index)
+    qtbot.wait(0)
+
+    assert add_state_dialog._config_form.model is bl_states.DeviceStateConfig
+    assert add_state_dialog._config_form_host.count() == 1
+    assert not add_state_dialog._config_form.isHidden()
+    assert not add_state_dialog._buttons.isHidden()
+    assert add_state_dialog.sizeHint().height() > add_state_dialog._buttons.sizeHint().height()
+    assert add_state_dialog.minimumHeight() == add_state_dialog.maximumHeight()
+
+    add_state_dialog._type_combo.setCurrentIndex(limits_index)
+    qtbot.wait(0)
+
+    assert add_state_dialog._config_form.model is bl_states.DeviceWithinLimitsState.CONFIG_CLASS
+    assert add_state_dialog.height() >= initial_height
+    assert add_state_dialog.minimumHeight() == add_state_dialog.maximumHeight()
+
+
+def test_add_beamline_state_dialog_cleanup_deletes_device_widgets(qtbot, mocked_client):
+    add_state_dialog = create_widget(qtbot, AddBeamlineStateDialog, client=mocked_client)
+    device = add_state_dialog._config_form.input_widget("device")
+    signal = add_state_dialog._config_form.input_widget("signal")
+
+    add_state_dialog.reject()
+    assert shiboken6.isValid(device)
+    assert shiboken6.isValid(signal)
+
+    add_state_dialog.cleanup()
+    QCoreApplication.sendPostedEvents(None, QEvent.Type.DeferredDelete)
+
+    assert not shiboken6.isValid(device)
+    assert not shiboken6.isValid(signal)

tests/unit_tests/test_color_utils.py

@@ -2,11 +2,11 @@ import pyqtgraph as pg
 import pytest
 from pydantic import ValidationError
 from qtpy.QtGui import QColor
-from qtpy.QtWidgets import QVBoxLayout, QWidget
+from qtpy.QtWidgets import QApplication, QVBoxLayout, QWidget
 
 from bec_widgets.utils.bec_connector import ConnectionConfig
 from bec_widgets.utils.bec_widget import BECWidget
-from bec_widgets.utils.colors import Colors, apply_theme
+from bec_widgets.utils.colors import Colors, apply_theme, get_theme_name, rgba, theme_color
 from bec_widgets.widgets.plots.waveform.curve import CurveConfig
 from tests.unit_tests.client_mocks import mocked_client
 from tests.unit_tests.conftest import create_widget
@@ -76,10 +76,26 @@ def test_hex_to_rgba():
         Colors.hex_to_rgba("#FF573")
 
 
-def test_rgba_to_hex():
-    assert Colors.rgba_to_hex(255, 87, 51, 255) == "#FF5733FF"
-    assert Colors.rgba_to_hex(255, 87, 51, 128) == "#FF573380"
-    assert Colors.rgba_to_hex(255, 87, 51) == "#FF5733FF"
+def test_get_theme_name_uses_application_theme():
+    app = QApplication.instance()
+    assert app.theme.theme == "light"
+    assert get_theme_name() == "light"
+
+
+def test_theme_color_uses_theme_color_method():
+    app = QApplication.instance()
+    fallback = QColor("#ffffff")
+    expected = app.theme.color("FG", fallback.name())
+
+    assert theme_color(app.theme, "FG", fallback).name() == expected.name()
+
+
+def test_theme_color_returns_fallback_without_theme():
+    assert theme_color(None, "FG", QColor("#ffffff")).name() == "#ffffff"
+
+
+def test_qss_rgba_helper():
+    assert rgba(QColor("#010203"), 255) == "rgba(1, 2, 3, 255)"
 
 
 def test_canonical_colormap_name_case_insensitive():

tests/unit_tests/test_device_input_widgets.py

@@ -120,7 +120,7 @@ def test_device_input_combobox_disabled_invalid_has_neutral_border(device_input_
     assert "red" in device_input_combobox.styleSheet()
 
     device_input_combobox.setEnabled(False)
-    assert "transparent" in device_input_combobox.styleSheet()
+    assert device_input_combobox.styleSheet() == ""
 
     device_input_combobox.setEnabled(True)
     assert "red" in device_input_combobox.styleSheet()

tests/unit_tests/test_device_signal_input.py

@@ -96,6 +96,22 @@ def test_signal_combobox_autocomplete(qtbot, mocked_client):
     assert text_changes[-1] == "manual_signal"
 
 
+def test_signal_combobox_group_headers_are_disabled(qtbot, mocked_client):
+    widget = create_widget(qtbot=qtbot, widget=SignalComboBox, client=mocked_client)
+
+    widget.set_device("samx")
+
+    assert widget.itemText(0) == "Hinted Signals"
+    assert widget.itemText(2) == "Normal Signals"
+    assert widget.itemText(4) == "Config Signals"
+    assert widget.model().item(0).isEnabled() is False
+    assert widget.model().item(2).isEnabled() is False
+    assert widget.model().item(4).isEnabled() is False
+
+    assert widget.set_to_first_enabled() is True
+    assert widget.currentText() == "samx (readback)"
+
+
 def test_signal_combobox_qproperties(device_signal_combobox):
     device_signal_combobox.include_config_signals = False
     device_signal_combobox.include_normal_signals = False
@@ -116,7 +132,7 @@ def test_signal_combobox_disabled_invalid_has_neutral_border(device_signal_combo
     assert "red" in device_signal_combobox.styleSheet()
 
     device_signal_combobox.setEnabled(False)
-    assert "transparent" in device_signal_combobox.styleSheet()
+    assert device_signal_combobox.styleSheet() == ""
 
     device_signal_combobox.setEnabled(True)
     assert "red" in device_signal_combobox.styleSheet()

tests/unit_tests/test_dock_area.py

@@ -869,7 +869,14 @@ class TestToolbarFunctionality:
 
     def test_toolbar_utils_actions(self, advanced_dock_area):
         """Test utils toolbar actions trigger widget creation."""
-        utils_actions = ["queue", "terminal", "status", "progress_bar", "sbb_monitor"]
+        utils_actions = [
+            "queue",
+            "terminal",
+            "status",
+            "progress_bar",
+            "sbb_monitor",
+            "beamline_state_manager",
+        ]
 
         for action_name in utils_actions:
             with patch.object(advanced_dock_area, "new") as mock_new:
@@ -2428,6 +2435,7 @@ class TestFlatToolbarActions:
             "flat_terminal",
             "flat_bec_shell",
             "flat_sbb_monitor",
+            "flat_beamline_state_manager",
         ]
 
         for action_name in utils_actions:
@@ -2472,6 +2480,7 @@ class TestFlatToolbarActions:
             "flat_terminal": "BecConsole",
             "flat_bec_shell": "BECShell",
             "flat_sbb_monitor": "SBBMonitor",
+            "flat_beamline_state_manager": "BeamlineStateManager",
         }
 
         for action_name, widget_type in utils_action_mapping.items():

tests/unit_tests/test_generated_form_form.py

@@ -1,10 +1,24 @@
 from decimal import Decimal
+from unittest.mock import patch
 
 import pytest
+from bec_lib.device import Device, Signal
+from bec_lib.scan_args import ScanArgument
 from pydantic import BaseModel, Field
+from qtpy.QtWidgets import QCheckBox, QLabel, QLineEdit
 
 from bec_widgets.utils.forms_from_types.forms import PydanticModelForm, TypedForm
 from bec_widgets.utils.forms_from_types.items import FloatDecimalFormItem, IntFormItem, StrFormItem
+from bec_widgets.utils.forms_from_types.pydantic_widget_form import (
+    OptionalValueWidget,
+    PydanticWidgetForm,
+)
+from bec_widgets.utils.widget_io import WidgetIO
+from bec_widgets.widgets.control.device_input.device_combobox.device_combobox import DeviceComboBox
+from bec_widgets.widgets.control.device_input.signal_combobox.signal_combobox import SignalComboBox
+from bec_widgets.widgets.utility.spinbox.decimal_spinbox import BECSpinBox
+
+from .client_mocks import mocked_client
 
 # pylint: disable=no-member
 # pylint: disable=missing-function-docstring
@@ -26,6 +40,80 @@ class ExampleSchema(BaseModel):
     decimal_dp_limits_nodefault: Decimal = Field(decimal_places=2, gt=1, le=34.5)
 
 
+class GeneratedBeamlineSchema(BaseModel):
+    name: str = Field(title="State name", description="Unique state identifier.")
+    title: str | None = Field(default=None, title="Display title", description="Visible title.")
+    device: Device | str = Field(title="Device", description="BEC device.")
+    signal: Signal | str | None = Field(
+        default=None, title="Signal", description="Optional device signal."
+    )
+    limit: float | None = Field(
+        default=None,
+        title="Limit",
+        description="Optional numeric limit.",
+        json_schema_extra={"precision": 6},
+    )
+    tolerance: float = Field(
+        default=0.1,
+        title="Tolerance",
+        description="Warning tolerance.",
+        json_schema_extra={"precision": 6},
+    )
+
+    model_config = {"arbitrary_types_allowed": True}
+
+
+class GeneratedPlainSchema(BaseModel):
+    sample_name: str
+
+
+class GeneratedDeviceOnlySchema(BaseModel):
+    device: Device | str = Field(default="", title="Device")
+
+    model_config = {"arbitrary_types_allowed": True}
+
+
+class GeneratedSignalOnlySchema(BaseModel):
+    signal: Signal | str | None = Field(default=None, title="Signal")
+
+    model_config = {"arbitrary_types_allowed": True}
+
+
+class GeneratedScanArgumentSchema(BaseModel):
+    device: Device | str = Field(
+        default="", **ScanArgument(display_name="Device", description="Device source.").model_dump()
+    )
+    signal: Signal | str | None = Field(
+        default=None,
+        **ScanArgument(display_name="Signal", description="Signal source.").model_dump(),
+    )
+    low_limit: float | None = Field(
+        default=None,
+        **ScanArgument(
+            display_name="Low limit",
+            description="Optional lower bound.",
+            reference_units="device",
+            precision=4,
+            ge=-5,
+            le=5,
+        ).model_dump(),
+    )
+    exposure: float = Field(
+        default=0.1,
+        **ScanArgument(
+            display_name="Exposure", tooltip="Camera exposure.", units="s", precision=3, gt=0
+        ).model_dump(),
+    )
+
+    model_config = {"arbitrary_types_allowed": True}
+
+
+class GeneratedRequiredNumericAndOptionalBoolSchema(BaseModel):
+    enabled: bool | None = None
+    retry_count: int
+    scale: float
+
+
 TEST_DICT = {
     "sample_name": "test name",
     "str_optional": "None",
@@ -74,3 +162,168 @@ def test_widget_set_data(model_widget: PydanticModelForm):
         "decimal_dp_limits_nodefault",
     ]:
         assert model_widget.widget_dict[key].getValue() == TEST_DICT[key]
+
+
+def test_pydantic_widget_form_uses_field_metadata_and_type_widgets(qtbot, mocked_client):
+    form = PydanticWidgetForm(GeneratedBeamlineSchema, client=mocked_client)
+    qtbot.addWidget(form)
+
+    assert isinstance(form.input_widget("name"), QLineEdit)
+    assert isinstance(form.input_widget("device"), DeviceComboBox)
+    assert isinstance(form.input_widget("signal"), SignalComboBox)
+    assert isinstance(form.field_widget("limit"), OptionalValueWidget)
+    assert isinstance(form.input_widget("limit"), BECSpinBox)
+    assert form.input_widgets_by_type(DeviceComboBox) == [form.input_widget("device")]
+    assert form.input_widgets_by_type(SignalComboBox) == [form.input_widget("signal")]
+
+    label = form.layout().labelForField(form.field_widget("device"))
+    assert isinstance(label, QLabel)
+    assert label.text() == "Device"
+    assert label.toolTip() == "BEC device."
+    assert form.field_widget("limit").toolTip() == "Optional numeric limit."
+
+
+def test_pydantic_widget_form_device_signal_variants(qtbot, mocked_client):
+    device_signal_form = PydanticWidgetForm(GeneratedBeamlineSchema, client=mocked_client)
+    device_only_form = PydanticWidgetForm(GeneratedDeviceOnlySchema, client=mocked_client)
+    signal_only_form = PydanticWidgetForm(GeneratedSignalOnlySchema, client=mocked_client)
+    qtbot.addWidget(device_signal_form)
+    qtbot.addWidget(device_only_form)
+    qtbot.addWidget(signal_only_form)
+
+    assert isinstance(device_signal_form.input_widget("device"), DeviceComboBox)
+    assert isinstance(device_signal_form.input_widget("signal"), SignalComboBox)
+    assert device_signal_form.input_widget("signal").require_device is True
+
+    assert isinstance(device_only_form.input_widget("device"), DeviceComboBox)
+    assert device_only_form.input_widgets_by_type(SignalComboBox) == []
+
+    assert isinstance(signal_only_form.input_widget("signal"), SignalComboBox)
+    assert signal_only_form.input_widget("signal").require_device is False
+    assert signal_only_form.input_widgets_by_type(DeviceComboBox) == []
+
+
+def test_pydantic_widget_form_plain_field_has_generated_label_and_no_tooltip(qtbot):
+    form = PydanticWidgetForm(GeneratedPlainSchema)
+    qtbot.addWidget(form)
+
+    label = form.layout().labelForField(form.field_widget("sample_name"))
+    assert isinstance(label, QLabel)
+    assert label.text() == "Sample name"
+    assert label.toolTip() == ""
+    assert form.field_widget("sample_name").toolTip() == ""
+
+
+def test_pydantic_model_input_configs_reads_bl_states_annotated_scan_arguments():
+    """Contract test: ScanArgument metadata attached via ``Annotated`` in bec_lib's beamline
+    state configs must reach the generated-form configuration."""
+    from bec_lib import bl_states
+
+    from bec_widgets.utils.forms_from_types.pydantic_model_info_adapter import (
+        pydantic_model_input_configs,
+    )
+
+    items = {
+        item["name"]: item
+        for item in pydantic_model_input_configs(bl_states.DeviceWithinLimitsState.CONFIG_CLASS)
+    }
+
+    assert items["name"]["display_name"] == "State name"
+    assert items["name"]["tooltip"]
+    assert items["device"]["display_name"] == "Device"
+    assert items["low_limit"]["reference_units"] == "device"
+    assert items["high_limit"]["reference_units"] == "device"
+    assert items["tolerance"]["reference_units"] == "device"
+
+
+def test_pydantic_widget_form_uses_scan_argument_metadata(qtbot, mocked_client):
+    form = PydanticWidgetForm(GeneratedScanArgumentSchema, client=mocked_client)
+    qtbot.addWidget(form)
+
+    low_limit = form.field_widget("low_limit")
+    low_limit_input = form.input_widget("low_limit")
+    exposure = form.input_widget("exposure")
+
+    low_limit_label = form.layout().labelForField(low_limit)
+    assert isinstance(low_limit_label, QLabel)
+    assert low_limit_label.text() == "Low limit"
+    assert low_limit.toolTip() == "Optional lower bound.\nUnits from: device"
+    assert low_limit_input.toolTip() == "Optional lower bound.\nUnits from: device"
+    assert low_limit_input.decimals() == 4
+    assert low_limit_input.minimum() == pytest.approx(-5)
+    assert low_limit_input.maximum() == pytest.approx(5)
+
+    assert form.field_widget("exposure").toolTip() == "Camera exposure.\nUnits: s"
+    assert exposure.toolTip() == "Camera exposure.\nUnits: s"
+    assert exposure.suffix() == " s"
+    assert exposure.decimals() == 3
+    assert exposure.minimum() == pytest.approx(0.001)
+
+    with patch.object(mocked_client.device_manager.devices.samx, "egu", return_value="mm"):
+        WidgetIO.set_value(form.input_widget("device"), "samx")
+
+    assert low_limit.toolTip() == "Optional lower bound.\nUnits: mm"
+    assert low_limit_input.toolTip() == "Optional lower bound.\nUnits: mm"
+    assert low_limit_input.suffix() == " mm"
+
+
+def test_pydantic_widget_form_cleans_up_on_close(qtbot):
+    form = PydanticWidgetForm(GeneratedPlainSchema)
+    qtbot.addWidget(form)
+
+    form.close()
+
+    assert form.widgets == {}
+    assert form.layout().count() == 0
+
+
+def test_pydantic_widget_form_round_trips_optional_numeric_and_dirty_state(qtbot, mocked_client):
+    form = PydanticWidgetForm(
+        GeneratedBeamlineSchema,
+        client=mocked_client,
+        data={"name": "state_1", "title": "State", "device": "samx", "signal": "samx"},
+    )
+    qtbot.addWidget(form)
+
+    assert form.get_data()["limit"] is None
+
+    limit = form.field_widget("limit")
+    limit.checkbox.setChecked(True)
+    form.input_widget("limit").setValue(5.0)
+
+    assert form.get_data()["limit"] == 5.0
+    assert form.model_instance().limit == 5.0
+    assert "limit" in form.dirty_fields()
+
+    form.reset_to_baseline()
+
+    assert form.get_data()["limit"] is None
+    assert form.dirty_fields() == set()
+
+
+def test_pydantic_widget_form_initializes_required_numeric_fields(qtbot):
+    form = PydanticWidgetForm(GeneratedRequiredNumericAndOptionalBoolSchema)
+    qtbot.addWidget(form)
+
+    assert form.raw_data()["retry_count"] == 0
+    assert form.raw_data()["scale"] == 0.0
+    assert form.model_instance().retry_count == 0
+    assert form.model_instance().scale == 0.0
+
+
+def test_pydantic_widget_form_preserves_optional_bool_none(qtbot):
+    form = PydanticWidgetForm(GeneratedRequiredNumericAndOptionalBoolSchema)
+    qtbot.addWidget(form)
+
+    enabled = form.field_widget("enabled")
+
+    assert isinstance(enabled, OptionalValueWidget)
+    assert isinstance(form.input_widget("enabled"), QCheckBox)
+    assert form.raw_data()["enabled"] is None
+    assert form.model_instance().enabled is None
+
+    enabled.checkbox.setChecked(True)
+    form.input_widget("enabled").setChecked(True)
+
+    assert form.raw_data()["enabled"] is True
+    assert form.model_instance().enabled is True

tests/unit_tests/test_main_widnow.py

@@ -69,11 +69,6 @@ def test_display_app_id_connected(bec_main_window):
         assert bec_main_window._app_id_label.text() == "App ID: gui_123"
 
 
-def test_event_consumes_status_tip(bec_main_window):
-    status_tip_event = QEvent(QEvent.Type.StatusTip)
-    assert bec_main_window.event(status_tip_event) is True
-
-
 def test_get_launcher_from_qapp_returns_none_when_absent(bec_main_window):
     with patch.object(
         QApplication, "instance", return_value=SimpleNamespace(topLevelWidgets=lambda: [])

tests/unit_tests/test_name_utils.py

@@ -0,0 +1,13 @@
+from bec_widgets.utils.name_utils import pascal_to_snake, sanitize_namespace
+
+
+def test_pascal_to_snake():
+    assert pascal_to_snake("DeviceWithinLimitsState") == "device_within_limits_state"
+    assert pascal_to_snake("BECStatusWidget") == "bec_status_widget"
+
+
+def test_sanitize_namespace():
+    assert sanitize_namespace("scan 1 / user") == "scan_1_user"
+    assert sanitize_namespace(" beamline.state-1 ") == "beamline.state-1"
+    assert sanitize_namespace("   ") is None
+    assert sanitize_namespace(None) is None

tests/unit_tests/test_notifications.py

@@ -40,11 +40,23 @@ def test_apply_theme_updates_colours(qtbot, toast):
     """apply_theme("light") should inject LIGHT palette colours into stylesheets."""
     toast.apply_theme("light")
     assert LIGHT_PALETTE["title"] in toast._title_lbl.styleSheet()
+    assert "border: 1px solid" in toast.trace_view.styleSheet()
+    assert "border:none" not in toast.trace_view.styleSheet()
 
     toast.apply_theme("dark")
     assert DARK_PALETTE["title"] in toast._title_lbl.styleSheet()
 
 
+def test_toast_updates_from_qapp_theme_changed_signal(qtbot, toast):
+    app = QtWidgets.QApplication.instance()
+    assert hasattr(app, "theme")
+
+    app.theme.theme_changed.emit("light")
+    qtbot.wait(10)
+
+    assert LIGHT_PALETTE["title"] in toast._title_lbl.styleSheet()
+
+
 def test_expired_signal(qtbot, toast):
     """Toast must emit expired once its lifetime finishes."""
     with qtbot.waitSignal(toast.expired, timeout=1000):
@@ -251,6 +263,20 @@ def test_theme_propagation(qtbot, centre):
     assert LIGHT_PALETTE["title"] in toast._title_lbl.styleSheet()
 
 
+def test_centre_updates_from_qapp_theme_changed_signal(qtbot, centre):
+    toast = _post(centre, SeverityKind.INFO)
+    centre.apply_theme("dark")
+
+    app = QtWidgets.QApplication.instance()
+    assert hasattr(app, "theme")
+
+    app.theme.theme_changed.emit("light")
+    qtbot.wait(10)
+
+    assert centre._theme == "light"
+    assert LIGHT_PALETTE["title"] in toast._title_lbl.styleSheet()
+
+
 # ------------------------------------------------------------------------
 # NotificationIndicator tests
 # ------------------------------------------------------------------------

tests/unit_tests/test_scan_arg_metadata.py

@@ -0,0 +1,85 @@
+import pytest
+from qtpy.QtWidgets import QDoubleSpinBox, QSpinBox
+
+from bec_widgets.utils.scan_arg_metadata import (
+    apply_numeric_limits,
+    apply_numeric_precision,
+    apply_unit_metadata,
+    device_units,
+    ui_config_from_metadata,
+    unit_tooltip,
+)
+
+from .conftest import create_widget
+
+
+def test_unit_tooltip_and_cleanup(qtbot):
+    widget = create_widget(qtbot, QDoubleSpinBox)
+    item = {"tooltip": "Move start", "reference_units": "device"}
+
+    assert unit_tooltip(item) == "Move start\nUnits from: device"
+
+    apply_unit_metadata(widget, item)
+    assert widget.toolTip() == "Move start\nUnits from: device"
+    assert widget.suffix() == ""
+
+    apply_unit_metadata(widget, item, "mm")
+    assert widget.toolTip() == "Move start\nUnits: mm"
+    assert widget.suffix() == " mm"
+
+    apply_unit_metadata(widget, item, "deg")
+    assert widget.toolTip() == "Move start\nUnits: deg"
+    assert widget.suffix() == " deg"
+
+
+def test_numeric_precision_and_limits(qtbot):
+    float_widget = create_widget(qtbot, QDoubleSpinBox)
+    int_widget = create_widget(qtbot, QSpinBox)
+
+    apply_numeric_precision(float_widget, {"name": "position", "precision": 3})
+    apply_numeric_limits(float_widget, {"ge": -1.5, "lt": 2.0})
+    apply_numeric_limits(int_widget, {"gt": 2, "le": 8})
+
+    assert float_widget.decimals() == 3
+    assert float_widget.minimum() == pytest.approx(-1.5)
+    assert float_widget.maximum() == pytest.approx(1.999)
+    assert int_widget.minimum() == 3
+    assert int_widget.maximum() == 8
+
+
+def test_device_units_uses_egu():
+    class Device:
+        def egu(self):
+            return "mm"
+
+    assert device_units(Device()) == "mm"
+    assert device_units(object()) is None
+
+
+def test_ui_config_from_metadata_matches_scan_control_item_shape():
+    item = ui_config_from_metadata(
+        name="exp_time",
+        input_type="float",
+        default=0.1,
+        metadata={"tooltip": "Exposure", "units": "s", "precision": 3, "ge": 0},
+    )
+
+    assert item == {
+        "arg": False,
+        "name": "exp_time",
+        "type": "float",
+        "display_name": "Exp Time",
+        "tooltip": "Exposure",
+        "default": 0.1,
+        "expert": False,
+        "hidden": False,
+        "precision": 3,
+        "units": "s",
+        "reference_units": None,
+        "reference_limits": None,
+        "gt": None,
+        "ge": 0,
+        "lt": None,
+        "le": None,
+        "alternative_group": None,
+    }

tests/unit_tests/test_widget_io.py

@@ -16,8 +16,12 @@ from qtpy.QtWidgets import (
 )
 
 from bec_widgets.utils.widget_io import WidgetHierarchy, WidgetIO, WidgetTreeNode
+from bec_widgets.widgets.control.device_input.device_combobox.device_combobox import DeviceComboBox
+from bec_widgets.widgets.control.device_input.signal_combobox.signal_combobox import SignalComboBox
 from bec_widgets.widgets.utility.toggle.toggle import ToggleSwitch
 
+from .client_mocks import mocked_client
+
 
 @pytest.fixture(scope="function")
 def example_widget(qtbot):
@@ -196,6 +200,58 @@ def test_widget_io_signal(qtbot, example_widget):
     assert changes[-1][1] == False
 
 
+def test_widget_io_device_combobox_handler(qtbot, mocked_client):
+    widget = DeviceComboBox(client=mocked_client)
+    qtbot.addWidget(widget)
+    changes = []
+
+    WidgetIO.connect_widget_change_signal(widget, lambda _widget, value: changes.append(value))
+    WidgetIO.set_value(widget, "samx")
+
+    assert WidgetIO.get_value(widget) == "samx"
+    assert changes[-1] == "samx"
+
+
+def test_widget_io_device_combobox_handler_accepts_subclasses(qtbot, mocked_client):
+    class PromotedDeviceComboBox(DeviceComboBox):
+        pass
+
+    widget = PromotedDeviceComboBox(client=mocked_client)
+    qtbot.addWidget(widget)
+
+    WidgetIO.set_value(widget, "samx")
+
+    assert WidgetIO.get_value(widget) == "samx"
+
+
+def test_widget_io_signal_combobox_handler(qtbot, mocked_client):
+    widget = SignalComboBox(client=mocked_client, require_device=True)
+    qtbot.addWidget(widget)
+    changes = []
+
+    widget.set_device("samx")
+    WidgetIO.connect_widget_change_signal(widget, lambda _widget, value: changes.append(value))
+    WidgetIO.set_value(widget, "samx")
+
+    assert WidgetIO.get_value(widget) == "samx"
+    widget.setCurrentText("")
+    widget.setCurrentText("samx")
+    assert changes[-1] == "samx"
+
+
+def test_widget_io_signal_combobox_handler_accepts_subclasses(qtbot, mocked_client):
+    class PromotedSignalComboBox(SignalComboBox):
+        pass
+
+    widget = PromotedSignalComboBox(client=mocked_client, require_device=True)
+    qtbot.addWidget(widget)
+    widget.set_device("samx")
+
+    WidgetIO.set_value(widget, "samx")
+
+    assert WidgetIO.get_value(widget) == "samx"
+
+
 def test_find_widgets(example_widget):
     # Test find_widgets by class type
     line_edits = WidgetIO.find_widgets(QLineEdit)