piker/ui/_app.py

@@ -27,15 +27,15 @@ import trio
 from piker.ui.qt import (
     QEvent,
 )
-from . import _chart
-from . import _event
-from . import _search
-from ..accounting import unpack_fqme
-from ..data._symcache import open_symcache
-from ..data.feed import install_brokerd_search
-from ..log import get_logger
 from ..service import maybe_spawn_brokerd
+from . import _event
 from ._exec import run_qtractor
+from ..data.feed import install_brokerd_search
+from ..data._symcache import open_symcache
+from ..accounting import unpack_fqme
+from . import _search
+from ._chart import GodWidget
+from ..log import get_logger
 
 log = get_logger(__name__)
 
@@ -73,8 +73,8 @@ async def load_provider_search(
 
 async def _async_main(
 
-    # implicit required argument provided by `qtractor_run()`
-    main_widget: _chart.GodWidget,
+    # implicit required argument provided by ``qtractor_run()``
+    main_widget: GodWidget,
 
     syms: list[str],
     brokers: dict[str, ModuleType],
@@ -87,9 +87,6 @@ async def _async_main(
     Provision the "main" widget with initial symbol data and root nursery.
 
     """
-    # set as singleton
-    _chart._godw = main_widget
-
     from . import _display
     from ._pg_overrides import _do_overrides
     _do_overrides()
@@ -204,6 +201,6 @@ def _main(
             brokermods,
             piker_loglevel,
         ),
-        main_widget_type=_chart.GodWidget,
+        main_widget_type=GodWidget,
         tractor_kwargs=tractor_kwargs,
     )

piker/ui/_chart.py

@@ -82,25 +82,6 @@ if TYPE_CHECKING:
 log = get_logger(__name__)
 
 
-_godw: GodWidget|None = None
-
-def get_godw() -> GodWidget:
-    '''
-    Get the top level "god widget", the root/central-most Qt
-    widget-object set as `QMainWindow.setCentralWidget(_godw)`.
-
-    See `piker.ui._exec` for the runtime init details and all the
-    machinery for running `trio` on the Qt event loop in guest mode.
-
-    '''
-    if _godw is None:
-        raise RuntimeError(
-            'No god-widget initialized ??\n'
-            'Have you called `run_qtractor()` yet?\n'
-        )
-    return _godw
-
-
 class GodWidget(QWidget):
     '''
     "Our lord and savior, the holy child of window-shua, there is no
@@ -586,8 +567,8 @@ class LinkedSplits(QWidget):
 
         # style?
         self.chart.setFrameStyle(
-            QFrame.Shape.StyledPanel
-            |QFrame.Shadow.Plain
+            QFrame.Shape.StyledPanel |
+            QFrame.Shadow.Plain
         )
 
         return self.chart

piker/ui/_curve.py

@@ -27,6 +27,7 @@ import pyqtgraph as pg
 
 from piker.ui.qt import (
     QtWidgets,
+    QGraphicsItem,
     Qt,
     QLineF,
     QRectF,

piker/ui/_exec.py

@@ -91,10 +91,6 @@ def run_qtractor(
     window_type: QMainWindow = None,
 
 ) -> None:
-    '''
-    Run the Qt event loop and embed `trio` via guest mode on it.
-
-    '''
     # avoids annoying message when entering debugger from qt loop
     pyqtRemoveInputHook()
 
@@ -174,7 +170,7 @@ def run_qtractor(
     # hook into app focus change events
     app.focusChanged.connect(window.on_focus_change)
 
-    instance: GodWidget = main_widget_type()
+    instance = main_widget_type()
     instance.window = window
 
     # override tractor's defaults