Pass display state table to interaction handlers

This took a teensie bit of reworking in some `.ui` modules
more or less in the following order of functional dependence:

- add a `Ctl-R` kb-binding to trigger a `Viz.reset_graphics()` in
  the kb-handler task `handle_viewmode_kb_inputs()`.
  - call the new method on all `Viz`s (& for all sample-rates) and
    `DisplayState` refs provided in a (new input)
    `dss: dict[str, DisplayState]` table, which was originally inite-ed
    from the multi-feed display loop (so orig in `.graphics_update_loop()`
    but now provided as an input to that func, see below..)
- `._interaction`: allow binding in `async_handler()` kwargs (`via
  a `functools.partial`) passed to `ChartView.open_async_input_handler()`
  such that arbitrary inputs to our kb+mouse handler funcs can accept
  "wtv we desire".
  - use ^ to bind in the aforementioned `dss` display-state table to
    said handlers!
- define the `dss` table (as mentioned) inside `._display.display_symbol_data()`
  and pass it into the update loop funcs as well as the newly augmented
  `.open_async_input_handler()` calls,
  - drop calling `chart.view.open_async_input_handler()` from the
    `.order_mode.open_order_mode()`'s enter block and instead factor it
    into the caller to support passing the `dss` table to the kb
    handlers.
  - comment out the original history update loop handling of forced `Viz`
    redraws entirely since we now have a manual method via `Ctl-R`.
  - now, just update the `._remote_ctl.dss: dict` with this table since
    we want to also provide rc for **all** loaded feeds, not just the
    currently shown one/set.
- docs, naming and typing tweaks to `._event.open_handlers()`

piker/data/_formatters.py

@@ -41,6 +41,11 @@ 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):
     '''
@@ -513,6 +518,7 @@ class IncrementalFormatter(msgspec.Struct):
 
 
 class OHLCBarsFmtr(IncrementalFormatter):
+
     x_offset: np.ndarray = np.array([
         -0.5,
         0,
@@ -604,8 +610,9 @@ 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
-        w: float = 0.16,
+        gap: float = BGM,
 
     ) -> tuple[
         np.ndarray,
@@ -622,7 +629,7 @@ class OHLCBarsFmtr(IncrementalFormatter):
             array[:-1],
             start,
             bar_w=self.index_step_size,
-            bar_gap=w * self.index_step_size,
+            bar_gap=gap * self.index_step_size,
 
             # XXX: don't ask, due to a ``numba`` bug..
             use_time_index=(self.index_field == 'time'),

piker/tsp/__init__.py

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

piker/tsp/_anal.py

@@ -380,10 +380,6 @@ 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
@@ -510,10 +506,10 @@ 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
@@ -529,9 +525,7 @@ 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[
@@ -546,25 +540,23 @@ t_unit: Literal = Literal[
 
 
 def detect_time_gaps(
-    df: pl.DataFrame,
+    w_dts: 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>``
-    # 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,
+    # 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,
 
 ) -> pl.DataFrame:
     '''
@@ -574,19 +566,24 @@ def detect_time_gaps(
     actual missing data segments.
 
     '''
-    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
-        )
+    # 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
     )
 
 
@@ -622,7 +619,10 @@ 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
@@ -637,44 +637,28 @@ def dedupe(
     dt-deduplicated frame.
 
     '''
-    df: pl.DataFrame = with_dts(src_df)
+    wdts: pl.DataFrame = with_dts(src_df)
 
-    # 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,
-        )
+    # 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?
 
     # remove duplicated datetime samples/sections
-    deduped: pl.DataFrame = df.unique(
+    deduped: pl.DataFrame = wdts.unique(
         subset=['dt'],
         maintain_order=True,
     )
-    if sort:
-        deduped = deduped.sort(by='time')
-
-    deduped_gaps: pl.DataFrame = detect_time_gaps(deduped)
 
     diff: int = (
-        df.height
+        wdts.height
         -
         deduped.height
     )
-    log.warning(
-        f'TIME GAPs FOUND:\n'
-        # f'{gaps}\n'
-        f'deduped Gaps found:\n{deduped_gaps}'
-    )
     return (
-        df,
-        gaps,
+        wdts,
         deduped,
         diff,
     )
@@ -708,7 +692,7 @@ 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 = time.time()
+    start: float = 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 numpy as np
+import polars as pl
 import pyqtgraph as pg
 from PyQt5 import QtCore, QtGui, QtWidgets
 from PyQt5.QtCore import QPointF
@@ -33,6 +33,7 @@ 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'))
 
@@ -287,9 +288,7 @@ class DynamicDateAxis(Axis):
     # time formats mapped by seconds between bars
     tick_tpl = {
         60 * 60 * 24: '%Y-%b-%d',
-        60: '%H:%M',
-        30: '%H:%M:%S',
-        5: '%H:%M:%S',
+        60: '%Y-%b-%d(%H:%M)',
         1: '%H:%M:%S',
     }
 
@@ -305,10 +304,10 @@ class DynamicDateAxis(Axis):
         # XX: ARGGGGG AG:LKSKDJF:LKJSDFD
         chart = self.pi.chart_widget
 
-        viz = chart._vizs[chart.name]
+        viz: Viz = chart._vizs[chart.name]
         shm = viz.shm
         array = shm.array
-        ifield = viz.index_field
+        ifield: str = viz.index_field
         index = array[ifield]
         i_0, i_l = index[0], index[-1]
 
@@ -329,7 +328,7 @@ class DynamicDateAxis(Axis):
             arr_len = index.shape[0]
             first = shm._first.value
             times = array['time']
-            epochs = times[
+            epochs: list[int] = times[
                 list(
                     map(
                         int,
@@ -341,23 +340,30 @@ class DynamicDateAxis(Axis):
                 )
             ]
         else:
-            epochs = list(map(int, indexes))
+            epochs: list[int] = list(map(int, indexes))
 
         # TODO: **don't** have this hard coded shift to EST
-        # delay = times[-1] - times[-2]
-        dts = np.array(
+        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(
             epochs,
-            dtype='datetime64[s]',
+            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'
         )
-
-        # 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])
+        return pl_dts.dt.to_string(fmtstr).to_list()
 
     def tickStrings(
         self,

piker/ui/_dataviz.py

@@ -36,6 +36,9 @@ from msgspec import (
     field,
 )
 import numpy as np
+from numpy import (
+    ndarray,
+)
 import pyqtgraph as pg
 from PyQt5.QtCore import QLineF
 
@@ -82,10 +85,11 @@ def render_baritems(
     viz: Viz,
     graphics: BarItems,
     read: tuple[
-        int, int, np.ndarray,
-        int, int, np.ndarray,
+        int, int, ndarray,
+        int, int, ndarray,
     ],
     profiler: Profiler,
+    force_redraw: bool = False,
     **kwargs,
 
 ) -> None:
@@ -216,9 +220,11 @@ def render_baritems(
     viz._in_ds = should_line
 
     should_redraw = (
-        changed_to_line
+        force_redraw
+        or changed_to_line
         or not should_line
     )
+    # print(f'should_redraw: {should_redraw}')
     return (
         graphics,
         r,
@@ -250,7 +256,7 @@ class ViewState(Struct):
     ] | None = None
 
     # last in view ``ShmArray.array[read_slc]`` data
-    in_view: np.ndarray | None = None
+    in_view: ndarray | None = None
 
 
 class Viz(Struct):
@@ -313,6 +319,7 @@ 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
@@ -359,7 +366,8 @@ class Viz(Struct):
 
     def index_step(
         self,
-        reset: bool = False,
+        index_field: str | None = None,
+
     ) -> float:
         '''
         Return the size between sample steps in the units of the
@@ -367,12 +375,17 @@ class Viz(Struct):
         epoch time in seconds.
 
         '''
-        # 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:]
+        # 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:]
 
             mxdiff: None | float = None
             for step in np.diff(isample):
@@ -386,7 +399,15 @@ class Viz(Struct):
                         )
                     mxdiff = step
 
-            self._index_step = max(mxdiff, 1)
+            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
             if (
                 mxdiff < 1
                 or 1 < mxdiff < 60
@@ -397,6 +418,17 @@ 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,
 
@@ -404,6 +436,9 @@ 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
@@ -423,15 +458,14 @@ class Viz(Struct):
         if shm is None:
             return None
 
-        do_print: bool = False
-        arr = shm.array
+        arr: ndarray = shm.array
 
         if i_read_range is not None:
             read_slc = slice(*i_read_range)
-            index = arr[read_slc][self.index_field]
+            index: float | int = arr[read_slc][self.index_field]
             if not index.size:
                 return None
-            ixrng = (index[0], index[-1])
+            ixrng: tuple[int, int] = (index[0], index[-1])
 
         else:
             if x_range is None:
@@ -449,15 +483,24 @@ 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}'
@@ -487,7 +530,7 @@ class Viz(Struct):
                     (rbar - ifirst) + 1
                 )
 
-        slice_view = arr[read_slc]
+        slice_view: ndarray = arr[read_slc]
 
         if not slice_view.size:
             log.warning(
@@ -498,7 +541,7 @@ 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}'
@@ -515,7 +558,7 @@ class Viz(Struct):
 
             mxmn = ylow, yhigh
             if (
-                do_print
+                _do_print
             ):
                 s = 3
                 print(
@@ -529,14 +572,23 @@ 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 = (
-                (
-                    abs(logf(ylow, 10)) > 16
-                    if ylow
-                    else False
-                )
+                # diff == 0
+                (ylow and omg > 10)
                 or (
                     isnan(ylow) or isnan(yhi)
                 )
@@ -577,7 +629,7 @@ class Viz(Struct):
         self,
         view_range: None | tuple[float, float] = None,
         index_field: str | None = None,
-        array: np.ndarray | None = None,
+        array: ndarray | None = None,
 
     ) -> tuple[
         int, int, int, int, int, int
@@ -648,8 +700,8 @@ class Viz(Struct):
         profiler: None | Profiler = None,
 
     ) -> tuple[
-        int, int, np.ndarray,
-        int, int, np.ndarray,
+        int, int, ndarray,
+        int, int, ndarray,
     ]:
         '''
         Read the underlying shm array buffer and
@@ -819,6 +871,10 @@ class Viz(Struct):
                 graphics,
                 read,
                 profiler,
+
+                # NOTE: only set when caller says to
+                force_redraw=should_redraw,
+
                 **kwargs,
             )
 
@@ -981,6 +1037,39 @@ 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,
@@ -1073,7 +1162,7 @@ class Viz(Struct):
 
         '''
         shm: ShmArray = self.shm
-        array: np.ndarray = shm.array
+        array: 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?
@@ -225,7 +225,8 @@ 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.update_graphics(force_redraw=True)
+        hist_viz.reset_graphics()
+        # hist_viz.update_graphics(force_redraw=True)
 
     async with open_sample_stream(1.) as min_istream:
         async for msg in min_istream:
@@ -248,27 +249,27 @@ 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.
@@ -309,6 +310,7 @@ async def increment_history_view(
 
 async def graphics_update_loop(
 
+    dss: dict[str, DisplayState],
     nurse: trio.Nursery,
     godwidget: GodWidget,
     feed: Feed,
@@ -350,8 +352,6 @@ 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
@@ -470,67 +470,68 @@ async def graphics_update_loop(
         if ds.hist_vars['i_last'] < ds.hist_vars['i_last_append']:
             await tractor.pause()
 
-    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
+    # try:
 
-        # 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')
+    # 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)
                 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
+                    fast_chart.linked.isHidden()
+                    or not rt_pi.isVisible()
                 ):
-                    pass
-                    # log.warning(f'High quote rate {mkt.fqme}: {quote_rate}')
+                    print(f'{fqme} skipping update for HIDDEN CHART')
+                    fast_chart.pause_all_feeds()
+                    continue
 
-                last_quote_s = time.time()
+                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()
 
-                for fqme, quote in quotes.items():
-                    ds = dss[fqme]
-                    ds.quotes = quote
-                    rt_pi, hist_pi = pis[fqme]
+                # sync call to update all graphics/UX components.
+                graphics_update_cycle(
+                    ds,
+                    quote,
+                )
 
-                    # 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()
+    # 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(
@@ -1554,8 +1555,10 @@ async def display_symbol_data(
             )
 
             # start update loop task
+            dss: dict[str, DisplayState] = {}
             ln.start_soon(
                 graphics_update_loop,
+                dss,
                 ln,
                 godwidget,
                 feed,
@@ -1569,15 +1572,31 @@ 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
-            ):
+                ) 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,
+                ),
+
+            ):
                 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 n:
-        n.start_soon(proxy_to_handler)
+    async with trio.open_nursery() as tn:
+        tn.start_soon(proxy_to_handler)
         async with send:
             yield
 
@@ -212,18 +212,48 @@ async def open_handlers(
 
     source_widgets: list[QWidget],
     event_types: set[QEvent],
-    async_handler: Callable[[QWidget, trio.abc.ReceiveChannel], None],
-    **kwargs,
+
+    # 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,
 
 ) -> 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 n,
+        trio.open_nursery() as tn,
         gather_contexts([
-            open_event_stream(widget, event_types, **kwargs)
+            open_event_stream(
+                widget,
+                event_types,
+                **open_ev_stream_kwargs,
+            )
             for widget in source_widgets
         ]) as streams,
     ):
-        for widget, event_recv_stream in zip(source_widgets, streams):
-            n.start_soon(async_handler, widget, event_recv_stream)
+        for widget, event_recv_stream in zip(
+            source_widgets,
+            streams,
+        ):
+            tn.start_soon(
+                async_handler,
+                widget,
+                event_recv_stream,
+            )
 
         yield

piker/ui/_interaction.py

@@ -23,6 +23,7 @@ from contextlib import (
     asynccontextmanager,
     ExitStack,
 )
+from functools import partial
 import time
 from typing import (
     Callable,
@@ -74,6 +75,7 @@ if TYPE_CHECKING:
     )
     from ._dataviz import Viz
     from .order_mode import OrderMode
+    from ._display import DisplayState
 
 
 log = get_logger(__name__)
@@ -102,6 +104,7 @@ async def handle_viewmode_kb_inputs(
 
     view: ChartView,
     recv_chan: trio.abc.ReceiveChannel,
+    dss: dict[str, DisplayState],
 
 ) -> None:
 
@@ -177,17 +180,42 @@ 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()
 
-            # SEARCH MODE #
+            # 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
+            # ------ - ------
             # ctlr-<space>/<l> for "lookup", "search" -> open search tree
             if (
                 ctrl
@@ -247,8 +275,10 @@ async def handle_viewmode_kb_inputs(
                     delta=-view.def_delta,
                 )
 
-            elif key == Qt.Key_R:
-
+            elif (
+                not ctrl
+                and 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..
@@ -431,6 +461,7 @@ async def handle_viewmode_mouse(
 
     view: ChartView,
     recv_chan: trio.abc.ReceiveChannel,
+    dss: dict[str, DisplayState],
 
 ) -> None:
 
@@ -567,6 +598,7 @@ class ChartView(ViewBox):
     @asynccontextmanager
     async def open_async_input_handler(
         self,
+        **handler_kwargs,
 
     ) -> ChartView:
 
@@ -577,14 +609,20 @@ class ChartView(ViewBox):
                     QEvent.KeyPress,
                     QEvent.KeyRelease,
                 },
-                async_handler=handle_viewmode_kb_inputs,
+                async_handler=partial(
+                    handle_viewmode_kb_inputs,
+                    **handler_kwargs,
+                ),
             ),
             _event.open_handlers(
                 [self],
                 event_types={
                     gs_mouse.GraphicsSceneMousePress,
                 },
-                async_handler=handle_viewmode_mouse,
+                async_handler=partial(
+                    handle_viewmode_mouse,
+                    **handler_kwargs,
+                ),
             ),
         ):
             yield self

piker/ui/order_mode.py

@@ -930,13 +930,8 @@ 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,