piker/data/_formatters.py

@@ -41,11 +41,6 @@ if TYPE_CHECKING:
     )
     from piker.toolz import Profiler
 
-# default gap between bars: "bar gap multiplier"
-# - 0.5 is no overlap between OC arms,
-# - 1.0 is full overlap on each neighbor sample
-BGM: float = 0.16
-
 
 class IncrementalFormatter(msgspec.Struct):
     '''
@@ -518,7 +513,6 @@ class IncrementalFormatter(msgspec.Struct):
 
 
 class OHLCBarsFmtr(IncrementalFormatter):
-
     x_offset: np.ndarray = np.array([
         -0.5,
         0,
@@ -610,9 +604,8 @@ class OHLCBarsFmtr(IncrementalFormatter):
         vr: tuple[int, int],
 
         start: int = 0,  # XXX: do we need this?
-
         # 0.5 is no overlap between arms, 1.0 is full overlap
-        gap: float = BGM,
+        w: float = 0.16,
 
     ) -> tuple[
         np.ndarray,
@@ -629,7 +622,7 @@ class OHLCBarsFmtr(IncrementalFormatter):
             array[:-1],
             start,
             bar_w=self.index_step_size,
-            bar_gap=gap * self.index_step_size,
+            bar_gap=w * self.index_step_size,
 
             # XXX: don't ask, due to a ``numba`` bug..
             use_time_index=(self.index_field == 'time'),

piker/tsp/__init__.py

@@ -67,28 +67,50 @@ from ..data._sampling import (
 )
 from ._anal import (
 
-    get_null_segs as get_null_segs,
-    iter_null_segs as iter_null_segs,
-    Frame as Frame,
-    Seq as Seq,
+    get_null_segs,
+    iter_null_segs,
+    Frame,
+    Seq,
 
     # codec-ish
-    np2pl as np2pl,
-    pl2np as pl2np,
+    np2pl,
+    pl2np,
 
     # `numpy` only
-    slice_from_time as slice_from_time,
+    slice_from_time,
 
     # `polars` specific
-    dedupe as dedupe,
-    with_dts as with_dts,
-    detect_time_gaps as detect_time_gaps,
-    sort_diff as sort_diff,
+    dedupe,
+    with_dts,
+    detect_time_gaps,
+    sort_diff,
 
     # TODO:
-    detect_price_gaps as detect_price_gaps
+    detect_price_gaps
 )
 
+__all__: list[str] = [
+    'dedupe',
+    'get_null_segs',
+    'iter_null_segs',
+    'sort_diff',
+    'slice_from_time',
+    'Frame',
+    'Seq',
+
+    'np2pl',
+    'pl2np',
+
+    'slice_from_time',
+
+    'with_dts',
+    'detect_time_gaps',
+    'sort_diff',
+
+    # TODO:
+    'detect_price_gaps'
+]
+
 # TODO: break up all this shite into submods!
 from ..brokers._util import (
     DataUnavailable,
@@ -418,11 +440,8 @@ async def start_backfill(
             # broker says there never was or is no more history to pull
             except DataUnavailable:
                 log.warning(
-                    f'NO-MORE-DATA in range?\n'
-                    f'`{mod.name}` halted history:\n'
-                    f'tf@fqme: {timeframe}@{mkt.fqme}\n'
-                    'bf_until <- last_start_dt:\n'
-                    f'{backfill_until_dt} <- {last_start_dt}\n'
+                    f'NO-MORE-DATA: backend {mod.name} halted history:\n'
+                    f'{timeframe}@{mkt.fqme}'
                 )
 
                 # ugh, what's a better way?
@@ -567,12 +586,13 @@ async def start_backfill(
                     load_from_offline=False,
                 )
                 (
-                    wdts,
+                    df,
+                    gaps,
                     deduped,
                     diff,
                 ) = dedupe(df)
-                # if diff:
-                #     sort_diff(df)
+                if diff:
+                    sort_diff(df)
 
         else:
             # finally filled gap

piker/tsp/_anal.py

@@ -380,6 +380,10 @@ def get_null_segs(
                 None,  # backfilled on next iter
             ])
 
+            # row = zero_t[fi]
+            # absi_pre_zseg = row['index'][0] - 1
+            # absi_pre_zseg = absi - 1
+
             # final iter case, backfill FINAL end iabs!
             if (i + 1) == fi_zgaps.size:
                 absi_zsegs[-1][1] = absi_zeros[-1] + 1
@@ -506,10 +510,10 @@ def iter_null_segs(
         )
 
 
+# TODO: move to ._pl_anal
 def with_dts(
     df: pl.DataFrame,
     time_col: str = 'time',
-
 ) -> pl.DataFrame:
     '''
     Insert datetime (casted) columns to a (presumably) OHLC sampled
@@ -525,7 +529,9 @@ def with_dts(
             column=pl.col(f'{time_col}_prev'),
         ).alias('dt_prev'),
         pl.col('dt').diff().alias('dt_diff'),
-    ])
+    ]) #.with_columns(
+        # pl.col('dt').diff().dt.days().alias('days_dt_diff'),
+    # )
 
 
 t_unit: Literal = Literal[
@@ -540,23 +546,25 @@ t_unit: Literal = Literal[
 
 
 def detect_time_gaps(
-    w_dts: pl.DataFrame,
+    df: pl.DataFrame,
 
     time_col: str = 'time',
     # epoch sampling step diff
     expect_period: float = 60,
 
+    # datetime diff unit and gap value
+    # crypto mkts
+    # gap_dt_unit: t_unit = 'minutes',
+    # gap_thresh: int = 1,
+
     # NOTE: legacy stock mkts have venue operating hours
     # and thus gaps normally no more then 1-2 days at
     # a time.
-    gap_thresh: float = 1.,
-
-    # TODO: allow passing in a frame of operating hours?
-    # -[ ] durations/ranges for faster legit gap checks?
     # XXX -> must be valid ``polars.Expr.dt.<name>``
-    # like 'days' which a sane default for venue closures
-    # though will detect weekend gaps which are normal :o
-    gap_dt_unit: t_unit | None = None,
+    # TODO: allow passing in a frame of operating hours
+    # durations/ranges for faster legit gap checks.
+    gap_dt_unit: t_unit = 'days',
+    gap_thresh: int = 1,
 
 ) -> pl.DataFrame:
     '''
@@ -566,24 +574,19 @@ def detect_time_gaps(
     actual missing data segments.
 
     '''
-    # first select by any sample-period (in seconds unit) step size
-    # greater then expected.
-    step_gaps: pl.DataFrame = w_dts.filter(
-        pl.col('s_diff').abs() > expect_period
-    )
-
-    if gap_dt_unit is None:
-        return step_gaps
-
-    # NOTE: this flag is to indicate that on this (sampling) time
-    # scale we expect to only be filtering against larger venue
-    # closures-scale time gaps.
-    return step_gaps.filter(
-        # Second by an arbitrary dt-unit step size
-        getattr(
-            pl.col('dt_diff').dt,
-            gap_dt_unit,
-        )().abs() > gap_thresh
+    return (
+        with_dts(df)
+        # First by a seconds unit step size
+        .filter(
+            pl.col('s_diff').abs() > expect_period
+        )
+        .filter(
+            # Second by an arbitrary dt-unit step size
+            getattr(
+                pl.col('dt_diff').dt,
+                gap_dt_unit,
+            )().abs() > gap_thresh
+        )
     )
 
 
@@ -619,10 +622,7 @@ def detect_price_gaps(
 
 def dedupe(
     src_df: pl.DataFrame,
-
-    time_gaps: pl.DataFrame | None = None,
     sort: bool = True,
-    period: float = 60,
 
 ) -> tuple[
     pl.DataFrame,  # with dts
@@ -637,28 +637,44 @@ def dedupe(
     dt-deduplicated frame.
 
     '''
-    wdts: pl.DataFrame = with_dts(src_df)
+    df: pl.DataFrame = with_dts(src_df)
 
-    # maybe sort on any time field
-    if sort:
-        wdts = wdts.sort(by='time')
-        # TODO: detect out-of-order segments which were corrected!
-        # -[ ] report in log msg
-        # -[ ] possibly return segment sections which were moved?
+    # TODO: enable passing existing `with_dts` df for speedup?
+    gaps: pl.DataFrame = detect_time_gaps(df)
+
+    # if no gaps detected just return carbon copies
+    # and no len diff.
+    if gaps.is_empty():
+        return (
+            df,
+            gaps,
+            df,
+            0,
+        )
 
     # remove duplicated datetime samples/sections
-    deduped: pl.DataFrame = wdts.unique(
+    deduped: pl.DataFrame = df.unique(
         subset=['dt'],
         maintain_order=True,
     )
+    if sort:
+        deduped = deduped.sort(by='time')
+
+    deduped_gaps: pl.DataFrame = detect_time_gaps(deduped)
 
     diff: int = (
-        wdts.height
+        df.height
         -
         deduped.height
     )
+    log.warning(
+        f'TIME GAPs FOUND:\n'
+        # f'{gaps}\n'
+        f'deduped Gaps found:\n{deduped_gaps}'
+    )
     return (
-        wdts,
+        df,
+        gaps,
         deduped,
         diff,
     )
@@ -692,7 +708,7 @@ def sort_diff(
 # to go from numpy struct-arrays to polars dataframes and back:
 # https://stackoverflow.com/a/72054819
 def np2pl(array: np.ndarray) -> pl.DataFrame:
-    start: float = time.time()
+    start = time.time()
 
     # XXX: thanks to this SO answer for this conversion tip:
     # https://stackoverflow.com/a/72054819

piker/ui/_axes.py

@@ -23,7 +23,7 @@ from functools import lru_cache
 from typing import Callable
 from math import floor
 
-import polars as pl
+import numpy as np
 import pyqtgraph as pg
 from PyQt5 import QtCore, QtGui, QtWidgets
 from PyQt5.QtCore import QPointF
@@ -33,7 +33,6 @@ from ..accounting._mktinfo import float_digits
 from ._label import Label
 from ._style import DpiAwareFont, hcolor, _font
 from ._interaction import ChartView
-from ._dataviz import Viz
 
 _axis_pen = pg.mkPen(hcolor('bracket'))
 
@@ -288,7 +287,9 @@ class DynamicDateAxis(Axis):
     # time formats mapped by seconds between bars
     tick_tpl = {
         60 * 60 * 24: '%Y-%b-%d',
-        60: '%Y-%b-%d(%H:%M)',
+        60: '%H:%M',
+        30: '%H:%M:%S',
+        5: '%H:%M:%S',
         1: '%H:%M:%S',
     }
 
@@ -304,10 +305,10 @@ class DynamicDateAxis(Axis):
         # XX: ARGGGGG AG:LKSKDJF:LKJSDFD
         chart = self.pi.chart_widget
 
-        viz: Viz = chart._vizs[chart.name]
+        viz = chart._vizs[chart.name]
         shm = viz.shm
         array = shm.array
-        ifield: str = viz.index_field
+        ifield = viz.index_field
         index = array[ifield]
         i_0, i_l = index[0], index[-1]
 
@@ -328,7 +329,7 @@ class DynamicDateAxis(Axis):
             arr_len = index.shape[0]
             first = shm._first.value
             times = array['time']
-            epochs: list[int] = times[
+            epochs = times[
                 list(
                     map(
                         int,
@@ -340,30 +341,23 @@ class DynamicDateAxis(Axis):
                 )
             ]
         else:
-            epochs: list[int] = list(map(int, indexes))
+            epochs = list(map(int, indexes))
 
         # TODO: **don't** have this hard coded shift to EST
-        delay: float = viz.time_step()
-        if delay > 1:
-            # NOTE: use less granular dt-str when using 1M+ OHLC
-            fmtstr: str = self.tick_tpl[delay]
-        else:
-            fmtstr: str = '%Y-%m-%d(%H:%M:%S)'
-
-        # https://pola-rs.github.io/polars/py-polars/html/reference/expressions/api/polars.from_epoch.html#polars-from-epoch
-        pl_dts: pl.Series = pl.from_epoch(
+        # delay = times[-1] - times[-2]
+        dts = np.array(
             epochs,
-            time_unit='s',
-        # NOTE: kinda weird we can pass it to `.from_epoch()` no?
-        ).dt.replace_time_zone(
-            time_zone='UTC'
-        ).dt.convert_time_zone(
-            # TODO: pull this from either:
-            # -[ ] the mkt venue tz by default
-            # -[ ] the user's config under `sys.mkt_timezone: str`
-            'EST'
+            dtype='datetime64[s]',
         )
-        return pl_dts.dt.to_string(fmtstr).to_list()
+
+        # see units listing:
+        # https://numpy.org/devdocs/reference/arrays.datetime.html#datetime-units
+        return list(np.datetime_as_string(dts))
+
+        # TODO: per timeframe formatting?
+        # - we probably need this based on zoom now right?
+        # prec = self.np_dt_precision[delay]
+        # return dts.strftime(self.tick_tpl[delay])
 
     def tickStrings(
         self,

piker/ui/_dataviz.py

@@ -36,9 +36,6 @@ from msgspec import (
     field,
 )
 import numpy as np
-from numpy import (
-    ndarray,
-)
 import pyqtgraph as pg
 from PyQt5.QtCore import QLineF
 
@@ -85,11 +82,10 @@ def render_baritems(
     viz: Viz,
     graphics: BarItems,
     read: tuple[
-        int, int, ndarray,
-        int, int, ndarray,
+        int, int, np.ndarray,
+        int, int, np.ndarray,
     ],
     profiler: Profiler,
-    force_redraw: bool = False,
     **kwargs,
 
 ) -> None:
@@ -220,11 +216,9 @@ def render_baritems(
     viz._in_ds = should_line
 
     should_redraw = (
-        force_redraw
-        or changed_to_line
+        changed_to_line
         or not should_line
     )
-    # print(f'should_redraw: {should_redraw}')
     return (
         graphics,
         r,
@@ -256,7 +250,7 @@ class ViewState(Struct):
     ] | None = None
 
     # last in view ``ShmArray.array[read_slc]`` data
-    in_view: ndarray | None = None
+    in_view: np.ndarray | None = None
 
 
 class Viz(Struct):
@@ -319,7 +313,6 @@ class Viz(Struct):
     _last_uppx: float = 0
     _in_ds: bool = False
     _index_step: float | None = None
-    _time_step: float | None = None
 
     # map from uppx -> (downsampled data, incremental graphics)
     _src_r: Renderer | None = None
@@ -366,8 +359,7 @@ class Viz(Struct):
 
     def index_step(
         self,
-        index_field: str | None = None,
-
+        reset: bool = False,
     ) -> float:
         '''
         Return the size between sample steps in the units of the
@@ -375,17 +367,12 @@ class Viz(Struct):
         epoch time in seconds.
 
         '''
-        # attempt to detect the best step size by scanning a sample
-        # of the source data.
-        if (
-            self._index_step is None
-            or index_field is not None
-        ):
-            index: ndarray = self.shm.array[
-                index_field
-                or self.index_field
-            ]
-            isample: ndarray = index[-16:]
+        # attempt to dectect the best step size by scanning a sample of
+        # the source data.
+        if self._index_step is None:
+
+            index: np.ndarray = self.shm.array[self.index_field]
+            isample: np.ndarray = index[-16:]
 
             mxdiff: None | float = None
             for step in np.diff(isample):
@@ -399,15 +386,7 @@ class Viz(Struct):
                         )
                     mxdiff = step
 
-            step: float = max(mxdiff, 1)
-
-            # only SET the internal index step if an explicit
-            # field name is NOT passed, since in such cases this
-            # is likely just being called from `.time_step()`.
-            if index_field is not None:
-                return step
-
-            self._index_step = step
+            self._index_step = max(mxdiff, 1)
             if (
                 mxdiff < 1
                 or 1 < mxdiff < 60
@@ -418,17 +397,6 @@ class Viz(Struct):
 
         return self._index_step
 
-    def time_step(self) -> float:
-        '''
-        Attempt to determine the per-sample time-step period by 
-        forcing an epoch-index and calling `.index_step()`.
-
-        '''
-        if self._time_step is None:
-            self._time_step: float = self.index_step(index_field='time')
-
-        return self._time_step
-
     def maxmin(
         self,
 
@@ -436,9 +404,6 @@ class Viz(Struct):
         i_read_range: tuple[int, int] | None = None,
         use_caching: bool = True,
 
-        # XXX: internal debug
-        _do_print: bool = False
-
     ) -> tuple[float, float] | None:
         '''
         Compute the cached max and min y-range values for a given
@@ -458,14 +423,15 @@ class Viz(Struct):
         if shm is None:
             return None
 
-        arr: ndarray = shm.array
+        do_print: bool = False
+        arr = shm.array
 
         if i_read_range is not None:
             read_slc = slice(*i_read_range)
-            index: float | int = arr[read_slc][self.index_field]
+            index = arr[read_slc][self.index_field]
             if not index.size:
                 return None
-            ixrng: tuple[int, int] = (index[0], index[-1])
+            ixrng = (index[0], index[-1])
 
         else:
             if x_range is None:
@@ -483,24 +449,15 @@ class Viz(Struct):
 
             # TODO: hash the slice instead maybe?
             # https://stackoverflow.com/a/29980872
-            ixrng = lbar, rbar = (
-                round(x_range[0]),
-                round(x_range[1]),
-            )
+            ixrng = lbar, rbar = round(x_range[0]), round(x_range[1])
 
         if (
             use_caching
             and self._mxmn_cache_enabled
         ):
-            # TODO: is there a way to ONLY clear ranges containing
-            # a certain sub-range?
-            # -[ ] currently we have a problem where a previously
-            #    cached mxmn will persist even if the viz is "hard
-            #    re-rendered" (usually bc underlying data was
-            #    corrected)
             cached_result = self._mxmns.get(ixrng)
             if cached_result:
-                if _do_print:
+                if do_print:
                     print(
                         f'{self.name} CACHED maxmin\n'
                         f'{ixrng} -> {cached_result}'
@@ -530,7 +487,7 @@ class Viz(Struct):
                     (rbar - ifirst) + 1
                 )
 
-        slice_view: ndarray = arr[read_slc]
+        slice_view = arr[read_slc]
 
         if not slice_view.size:
             log.warning(
@@ -541,7 +498,7 @@ class Viz(Struct):
 
         elif self.ds_yrange:
             mxmn = self.ds_yrange
-            if _do_print:
+            if do_print:
                 print(
                     f'{self.name} M4 maxmin:\n'
                     f'{ixrng} -> {mxmn}'
@@ -558,7 +515,7 @@ class Viz(Struct):
 
             mxmn = ylow, yhigh
             if (
-                _do_print
+                do_print
             ):
                 s = 3
                 print(
@@ -572,23 +529,14 @@ class Viz(Struct):
 
         # cache result for input range
         ylow, yhi = mxmn
-        diff: float = yhi - ylow
-
-        # order-of-magnitude check
-        # TODO: really we should be checking the hi or low
-        # against the previous sample to catch stuff like,
-        # - rando stock (reverse-)split
-        # - null-segments written by some prior
-        #   crash-during-backfil
-        if diff > 0:
-            omg: float = abs(logf(diff, 10))
-        else:
-            omg: float = 0
 
         try:
             prolly_anomaly: bool = (
-                # diff == 0
-                (ylow and omg > 10)
+                (
+                    abs(logf(ylow, 10)) > 16
+                    if ylow
+                    else False
+                )
                 or (
                     isnan(ylow) or isnan(yhi)
                 )
@@ -629,7 +577,7 @@ class Viz(Struct):
         self,
         view_range: None | tuple[float, float] = None,
         index_field: str | None = None,
-        array: ndarray | None = None,
+        array: np.ndarray | None = None,
 
     ) -> tuple[
         int, int, int, int, int, int
@@ -700,8 +648,8 @@ class Viz(Struct):
         profiler: None | Profiler = None,
 
     ) -> tuple[
-        int, int, ndarray,
-        int, int, ndarray,
+        int, int, np.ndarray,
+        int, int, np.ndarray,
     ]:
         '''
         Read the underlying shm array buffer and
@@ -871,10 +819,6 @@ class Viz(Struct):
                 graphics,
                 read,
                 profiler,
-
-                # NOTE: only set when caller says to
-                force_redraw=should_redraw,
-
                 **kwargs,
             )
 
@@ -1037,39 +981,6 @@ class Viz(Struct):
             graphics,
         )
 
-    def reset_graphics(
-        self,
-
-        # TODO: allow only resetting within some x-domain range?
-        # ixrng: tuple[int, int] | None = None,
-
-    ) -> None:
-        '''
-        Hard reset all graphics (rendering) layers for this
-        data viz including clearing the mxmn auto-y-range
-        cache.
-
-        Normally called when the underlying data set is modified
-        (probably by some `.tsp` correcting/editing routine) and
-        the (now cached) graphics need to be fully re-rendered from
-        source.
-
-        '''
-        log.warning(
-            f'Forcing hard Viz graphihcs RESET:\n'
-            f'.name: {self.name}\n'
-            f'.index_field: {self.index_field}\n'
-            f'.index_step(): {self.index_step()}\n'
-            f'.time_step(): {self.time_step()}\n'
-        )
-        # XXX: always clear the mxn y-range cache
-        # to avoid old data (anomalies) from being
-        # retained in auto-yrange output.
-        self._mxmn_cache_enabled = False
-        self._mxmns.clear()
-        self.update_graphics(force_redraw=True)
-        self._mxmn_cache_enabled = True
-
     def draw_last(
         self,
         array_key: str | None = None,
@@ -1162,7 +1073,7 @@ class Viz(Struct):
 
         '''
         shm: ShmArray = self.shm
-        array: ndarray = shm.array
+        array: np.ndarray = shm.array
         view: ChartView = self.plot.vb
         (
             vl,

piker/ui/_display.py

@@ -210,9 +210,9 @@ async def increment_history_view(
 ):
     hist_chart: ChartPlotWidget = ds.hist_chart
     hist_viz: Viz = ds.hist_viz
-    # viz: Viz = ds.viz
+    viz: Viz = ds.viz
     assert 'hist' in hist_viz.shm.token['shm_name']
-    # name: str = hist_viz.name
+    name: str = hist_viz.name
 
     # TODO: seems this is more reliable at keeping the slow
     # chart incremented in view more correctly?
@@ -225,8 +225,7 @@ async def increment_history_view(
     # draw everything from scratch on first entry!
     for curve_name, hist_viz in hist_chart._vizs.items():
         log.info(f'Forcing hard redraw -> {curve_name}')
-        hist_viz.reset_graphics()
-        # hist_viz.update_graphics(force_redraw=True)
+        hist_viz.update_graphics(force_redraw=True)
 
     async with open_sample_stream(1.) as min_istream:
         async for msg in min_istream:
@@ -249,27 +248,27 @@ async def increment_history_view(
             # - samplerd could emit the actual update range via
             #   tuple and then we only enter the below block if that
             #   range is detected as in-view?
-            # match msg:
-            #     case {
-            #         'backfilling': (viz_name, timeframe),
-            #     } if (
-            #         viz_name == name
-            #     ):
-            #         log.warning(
-            #             f'Forcing HARD REDRAW:\n'
-            #             f'name: {name}\n'
-            #             f'timeframe: {timeframe}\n'
-            #         )
-            #         # TODO: only allow this when the data is IN VIEW!
-            #         # also, we probably can do this more efficiently
-            #         # / smarter by only redrawing the portion of the
-            #         # path necessary?
-            #         {
-            #             60: hist_viz,
-            #             1: viz,
-            #         }[timeframe].update_graphics(
-            #             force_redraw=True
-            #         )
+            match msg:
+                case {
+                    'backfilling': (viz_name, timeframe),
+                } if (
+                    viz_name == name
+                ):
+                    log.warning(
+                        f'Forcing HARD REDRAW:\n'
+                        f'name: {name}\n'
+                        f'timeframe: {timeframe}\n'
+                    )
+                    # TODO: only allow this when the data is IN VIEW!
+                    # also, we probably can do this more efficiently
+                    # / smarter by only redrawing the portion of the
+                    # path necessary?
+                    {
+                        60: hist_viz,
+                        1: viz,
+                    }[timeframe].update_graphics(
+                        force_redraw=True
+                    )
 
             # check if slow chart needs an x-domain shift and/or
             # y-range resize.
@@ -310,7 +309,6 @@ async def increment_history_view(
 
 async def graphics_update_loop(
 
-    dss: dict[str, DisplayState],
     nurse: trio.Nursery,
     godwidget: GodWidget,
     feed: Feed,
@@ -352,6 +350,8 @@ async def graphics_update_loop(
         'i_last_slow_t':  0,  # multiview-global slow (1m) step index
     }
 
+    dss: dict[str, DisplayState] = {}
+
     for fqme, flume in feed.flumes.items():
         ohlcv = flume.rt_shm
         hist_ohlcv = flume.hist_shm
@@ -470,68 +470,67 @@ async def graphics_update_loop(
         if ds.hist_vars['i_last'] < ds.hist_vars['i_last_append']:
             await tractor.pause()
 
-    # try:
+    try:
+        # XXX TODO: we need to do _dss UPDATE here so that when
+        # a feed-view is switched you can still remote annotate the
+        # prior view..
+        from . import _remote_ctl
+        _remote_ctl._dss = dss
 
-    # XXX TODO: we need to do _dss UPDATE here so that when
-    # a feed-view is switched you can still remote annotate the
-    # prior view..
-    from . import _remote_ctl
-    _remote_ctl._dss.update(dss)
-
-    # main real-time quotes update loop
-    stream: tractor.MsgStream
-    async with feed.open_multi_stream() as stream:
-        # assert stream
-        async for quotes in stream:
-            quote_period = time.time() - last_quote_s
-            quote_rate = round(
-                1/quote_period, 1) if quote_period > 0 else float('inf')
-            if (
-                quote_period <= 1/_quote_throttle_rate
-
-                # in the absolute worst case we shouldn't see more then
-                # twice the expected throttle rate right!?
-                # and quote_rate >= _quote_throttle_rate * 2
-                and quote_rate >= display_rate
-            ):
-                pass
-                # log.warning(f'High quote rate {mkt.fqme}: {quote_rate}')
-
-            last_quote_s: float = time.time()
-
-            for fqme, quote in quotes.items():
-                ds = dss[fqme]
-                ds.quotes = quote
-                rt_pi, hist_pi = pis[fqme]
-
-                # chart isn't active/shown so skip render cycle and
-                # pause feed(s)
+        # main real-time quotes update loop
+        stream: tractor.MsgStream
+        async with feed.open_multi_stream() as stream:
+            assert stream
+            async for quotes in stream:
+                quote_period = time.time() - last_quote_s
+                quote_rate = round(
+                    1/quote_period, 1) if quote_period > 0 else float('inf')
                 if (
-                    fast_chart.linked.isHidden()
-                    or not rt_pi.isVisible()
+                    quote_period <= 1/_quote_throttle_rate
+
+                    # in the absolute worst case we shouldn't see more then
+                    # twice the expected throttle rate right!?
+                    # and quote_rate >= _quote_throttle_rate * 2
+                    and quote_rate >= display_rate
                 ):
-                    print(f'{fqme} skipping update for HIDDEN CHART')
-                    fast_chart.pause_all_feeds()
-                    continue
+                    pass
+                    # log.warning(f'High quote rate {mkt.fqme}: {quote_rate}')
 
-                ic = fast_chart.view._in_interact
-                if ic:
-                    fast_chart.pause_all_feeds()
-                    print(f'{fqme} PAUSING DURING INTERACTION')
-                    await ic.wait()
-                    fast_chart.resume_all_feeds()
+                last_quote_s = time.time()
 
-                # sync call to update all graphics/UX components.
-                graphics_update_cycle(
-                    ds,
-                    quote,
-                )
+                for fqme, quote in quotes.items():
+                    ds = dss[fqme]
+                    ds.quotes = quote
+                    rt_pi, hist_pi = pis[fqme]
 
-    # finally:
-    #     # XXX: cancel any remote annotation control ctxs
-    #     _remote_ctl._dss = None
-    #     for cid, (ctx, aids) in _remote_ctl._ctxs.items():
-    #         await ctx.cancel()
+                    # chart isn't active/shown so skip render cycle and
+                    # pause feed(s)
+                    if (
+                        fast_chart.linked.isHidden()
+                        or not rt_pi.isVisible()
+                    ):
+                        print(f'{fqme} skipping update for HIDDEN CHART')
+                        fast_chart.pause_all_feeds()
+                        continue
+
+                    ic = fast_chart.view._in_interact
+                    if ic:
+                        fast_chart.pause_all_feeds()
+                        print(f'{fqme} PAUSING DURING INTERACTION')
+                        await ic.wait()
+                        fast_chart.resume_all_feeds()
+
+                    # sync call to update all graphics/UX components.
+                    graphics_update_cycle(
+                        ds,
+                        quote,
+                    )
+
+    finally:
+        # XXX: cancel any remote annotation control ctxs
+        _remote_ctl._dss = None
+        for cid, (ctx, aids) in _remote_ctl._ctxs.items():
+            await ctx.cancel()
 
 
 def graphics_update_cycle(
@@ -1555,10 +1554,8 @@ async def display_symbol_data(
             )
 
             # start update loop task
-            dss: dict[str, DisplayState] = {}
             ln.start_soon(
                 graphics_update_loop,
-                dss,
                 ln,
                 godwidget,
                 feed,
@@ -1572,31 +1569,15 @@ async def display_symbol_data(
             order_ctl_fqme: str = fqmes[0]
             mode: OrderMode
             async with (
-
                 open_order_mode(
                     feed,
                     godwidget,
                     order_ctl_fqme,
                     order_mode_started,
                     loglevel=loglevel
-                ) as mode,
-
-                # TODO: maybe have these startup sooner before
-                # order mode fully boots? but we gotta,
-                # -[ ] decouple the order mode bindings until
-                #    the mode has fully booted..
-                #    -[ ] maybe do an Event to sync?
-
-                # start input handling for ``ChartView`` input
-                # (i.e. kb + mouse handling loops)
-                rt_chart.view.open_async_input_handler(
-                    dss=dss,
-                ),
-                hist_chart.view.open_async_input_handler(
-                    dss=dss,
-                ),
-
+                ) as mode
             ):
+
                 rt_linked.mode = mode
 
                 rt_viz = rt_chart.get_viz(order_ctl_fqme)

piker/ui/_event.py

@@ -201,8 +201,8 @@ async def open_signal_handler(
         async for args in recv:
             await async_handler(*args)
 
-    async with trio.open_nursery() as tn:
-        tn.start_soon(proxy_to_handler)
+    async with trio.open_nursery() as n:
+        n.start_soon(proxy_to_handler)
         async with send:
             yield
 
@@ -212,48 +212,18 @@ async def open_handlers(
 
     source_widgets: list[QWidget],
     event_types: set[QEvent],
-
-    # NOTE: if you want to bind in additional kwargs to the handler
-    # pass in a `partial()` instead!
-    async_handler: Callable[
-        [QWidget, trio.abc.ReceiveChannel],  # required handler args
-        None
-    ],
-
-    # XXX: these are ONLY inputs available to the
-    # `open_event_stream()` event-relay to mem-chan factor above!
-    **open_ev_stream_kwargs,
+    async_handler: Callable[[QWidget, trio.abc.ReceiveChannel], None],
+    **kwargs,
 
 ) -> None:
-    '''
-    Connect and schedule an async handler function to receive an
-    arbitrary `QWidget`'s events with kb/mouse msgs repacked into
-    structs (see above) and shuttled over a mem-chan to the input
-    `async_handler` to allow interaction-IO processing from
-    a `trio` func-as-task.
-
-    '''
-    widget: QWidget
-    streams: list[trio.abc.ReceiveChannel]
     async with (
-        trio.open_nursery() as tn,
+        trio.open_nursery() as n,
         gather_contexts([
-            open_event_stream(
-                widget,
-                event_types,
-                **open_ev_stream_kwargs,
-            )
+            open_event_stream(widget, event_types, **kwargs)
             for widget in source_widgets
         ]) as streams,
     ):
-        for widget, event_recv_stream in zip(
-            source_widgets,
-            streams,
-        ):
-            tn.start_soon(
-                async_handler,
-                widget,
-                event_recv_stream,
-            )
+        for widget, event_recv_stream in zip(source_widgets, streams):
+            n.start_soon(async_handler, widget, event_recv_stream)
 
         yield

piker/ui/_interaction.py

@@ -23,7 +23,6 @@ from contextlib import (
     asynccontextmanager,
     ExitStack,
 )
-from functools import partial
 import time
 from typing import (
     Callable,
@@ -75,7 +74,6 @@ if TYPE_CHECKING:
     )
     from ._dataviz import Viz
     from .order_mode import OrderMode
-    from ._display import DisplayState
 
 
 log = get_logger(__name__)
@@ -104,7 +102,6 @@ async def handle_viewmode_kb_inputs(
 
     view: ChartView,
     recv_chan: trio.abc.ReceiveChannel,
-    dss: dict[str, DisplayState],
 
 ) -> None:
 
@@ -180,42 +177,17 @@ async def handle_viewmode_kb_inputs(
                     Qt.Key_P,
                 }
             ):
+                import tractor
                 feed = order_mode.feed  # noqa
                 chart = order_mode.chart  # noqa
                 viz = chart.main_viz  # noqa
                 vlm_chart = chart.linked.subplots['volume']  # noqa
                 vlm_viz = vlm_chart.main_viz  # noqa
                 dvlm_pi = vlm_chart._vizs['dolla_vlm'].plot  # noqa
-                import tractor
                 await tractor.pause()
                 view.interact_graphics_cycle()
 
-            # FORCE graphics reset-and-render of all currently
-            # shown data `Viz`s for the current chart app.
-            if (
-                ctrl
-                and key in {
-                    Qt.Key_R,
-                }
-            ):
-                fqme: str
-                ds: DisplayState
-                for fqme, ds in dss.items():
-
-                    viz: Viz
-                    for tf, viz in {
-                        60: ds.hist_viz,
-                        1: ds.viz,
-                    }.items():
-                        # TODO: only allow this when the data is IN VIEW!
-                        # also, we probably can do this more efficiently
-                        # / smarter by only redrawing the portion of the
-                        # path necessary?
-                        viz.reset_graphics()
-
-            # ------ - ------
-            # SEARCH MODE
-            # ------ - ------
+            # SEARCH MODE #
             # ctlr-<space>/<l> for "lookup", "search" -> open search tree
             if (
                 ctrl
@@ -275,10 +247,8 @@ async def handle_viewmode_kb_inputs(
                     delta=-view.def_delta,
                 )
 
-            elif (
-                not ctrl
-                and key == Qt.Key_R
-            ):
+            elif key == Qt.Key_R:
+
                 # NOTE: seems that if we don't yield a Qt render
                 # cycle then the m4 downsampled curves will show here
                 # without another reset..
@@ -461,7 +431,6 @@ async def handle_viewmode_mouse(
 
     view: ChartView,
     recv_chan: trio.abc.ReceiveChannel,
-    dss: dict[str, DisplayState],
 
 ) -> None:
 
@@ -598,7 +567,6 @@ class ChartView(ViewBox):
     @asynccontextmanager
     async def open_async_input_handler(
         self,
-        **handler_kwargs,
 
     ) -> ChartView:
 
@@ -609,20 +577,14 @@ class ChartView(ViewBox):
                     QEvent.KeyPress,
                     QEvent.KeyRelease,
                 },
-                async_handler=partial(
-                    handle_viewmode_kb_inputs,
-                    **handler_kwargs,
-                ),
+                async_handler=handle_viewmode_kb_inputs,
             ),
             _event.open_handlers(
                 [self],
                 event_types={
                     gs_mouse.GraphicsSceneMousePress,
                 },
-                async_handler=partial(
-                    handle_viewmode_mouse,
-                    **handler_kwargs,
-                ),
+                async_handler=handle_viewmode_mouse,
             ),
         ):
             yield self

piker/ui/order_mode.py

@@ -930,8 +930,13 @@ async def open_order_mode(
                     msg,
                 )
 
+        # start async input handling for chart's view
         async with (
 
+            # ``ChartView`` input async handler startup
+            chart.view.open_async_input_handler(),
+            hist_chart.view.open_async_input_handler(),
+
             # pp pane kb inputs
             open_form_input_handling(
                 form,