Drop passing `bus` to `tsp.manage_history()` in feed allocator

Got borked by the logic re-factoring to get more conc going around
tsdb vs. latest frame loads with nested nurseries. So, repair all that
such that we can still backfill symbols previously not loaded as well as
drop all the `_FeedBus` instance passing to subtasks where it's
definitely not needed.

Toss in a pause point around sampler stream `'backfilling'` msgs as well
since there's seems to be a weird ctx-cancelled propagation going on
when a feed client disconnects during backfill and this might be where
the src `tractor.ContextCancelled` is getting bubbled from?

piker/brokers/ib/api.py

@@ -843,6 +843,7 @@ class Client:
         self,
         contract: Contract,
         timeout: float = 1,
+        tries: int = 100,
         raise_on_timeout: bool = False,
 
     ) -> Ticker | None:
@@ -857,30 +858,30 @@ class Client:
         ready: ticker.TickerUpdateEvent = ticker.updateEvent
 
         # ensure a last price gets filled in before we deliver quote
+        timeouterr: Exception | None = None
         warnset: bool = False
-        for _ in range(100):
-            if isnan(ticker.last):
+        for _ in range(tries):
 
-                # wait for a first update(Event)
+            # wait for a first update(Event) indicatingn a 
+            # live quote feed.
+            if isnan(ticker.last):
                 try:
                     tkr = await asyncio.wait_for(
                         ready,
                         timeout=timeout,
                     )
-                except TimeoutError:
-                    import pdbp
-                    pdbp.set_trace()
-
-                    if raise_on_timeout:
-                        raise
-                    return None
-
                     if tkr:
                         break
+                except TimeoutError as err:
+                    timeouterr = err
+                    await asyncio.sleep(0.01)
+                    continue
+
                 else:
                     if not warnset:
                         log.warning(
-                            f'Quote for {contract} timed out: market is closed?'
+                            f'Quote req timed out..maybe venue is closed?\n'
+                            f'{asdict(contract)}'
                         )
                         warnset = True
 
@@ -888,6 +889,11 @@ class Client:
                 log.info(f'Got first quote for {contract}')
                 break
         else:
+            if timeouterr and raise_on_timeout:
+                import pdbp
+                pdbp.set_trace()
+                raise timeouterr
+
             if not warnset:
                 log.warning(
                     f'Contract {contract} is not returning a quote '
@@ -895,6 +901,8 @@ class Client:
                 )
                 warnset = True
 
+            return None
+
         return ticker
 
     # async to be consistent for the client proxy, and cuz why not.

piker/brokers/ib/feed.py

@@ -943,6 +943,11 @@ async def stream_quotes(
             contract=con,
             raise_on_timeout=True,
         )
+        first_quote: dict = normalize(first_ticker)
+        log.info(
+            'Rxed init quote:\n'
+            f'{pformat(first_quote)}'
+        )
         cs: trio.CancelScope | None = None
         startup: bool = True
         while (

piker/config.py

@@ -134,14 +134,19 @@ def get_app_dir(
 
 _click_config_dir: Path = Path(get_app_dir('piker'))
 _config_dir: Path = _click_config_dir
-_parent_user: str = os.environ.get('SUDO_USER')
 
-if _parent_user:
+# NOTE: when using `sudo` we attempt to determine the non-root user
+# and still use their normal config dir.
+if (
+    (_parent_user := os.environ.get('SUDO_USER'))
+    and
+    _parent_user != 'root'
+):
     non_root_user_dir = Path(
         os.path.expanduser(f'~{_parent_user}')
     )
     root: str = 'root'
-    _ccds: str = str(_click_config_dir)  # click config dir string
+    _ccds: str = str(_click_config_dir)  # click config dir as string
     i_tail: int = int(_ccds.rfind(root) + len(root))
     _config_dir = (
         non_root_user_dir

piker/data/feed.py

@@ -45,10 +45,7 @@ import trio
 from trio.abc import ReceiveChannel
 from trio_typing import TaskStatus
 import tractor
-from tractor.trionics import (
-    maybe_open_context,
-    gather_contexts,
-)
+from tractor import trionics
 
 from piker.accounting import (
     MktPair,
@@ -69,7 +66,7 @@ from .validate import (
     FeedInit,
     validate_backend,
 )
-from .history import (
+from ..tsp import (
     manage_history,
 )
 from .ingest import get_ingestormod
@@ -124,6 +121,8 @@ class _FeedsBus(Struct):
                 trio.CancelScope] = trio.TASK_STATUS_IGNORED,
         ) -> None:
             with trio.CancelScope() as cs:
+                # TODO: shouldn't this be a direct await to avoid
+                # cancellation contagion to the bus nursery!?!?!
                 await self.nursery.start(
                     target,
                     *args,
@@ -330,7 +329,6 @@ async def allocate_persistent_feed(
     ) = await bus.nursery.start(
         manage_history,
         mod,
-        bus,
         mkt,
         some_data_ready,
         feed_is_live,
@@ -407,6 +405,12 @@ async def allocate_persistent_feed(
         rt_shm.array['time'][1] = ts + 1
 
     elif hist_shm.array.size == 0:
+        for i in range(100):
+            await trio.sleep(0.1)
+            if hist_shm.array.size > 0:
+                break
+        else:
+            await tractor.pause()
             raise RuntimeError(f'History (1m) Shm for {fqme} is empty!?')
 
     # wait the spawning parent task to register its subscriber
@@ -453,8 +457,12 @@ async def open_feed_bus(
     if loglevel is None:
         loglevel = tractor.current_actor().loglevel
 
-    # XXX: required to propagate ``tractor`` loglevel to piker logging
-    get_console_log(loglevel or tractor.current_actor().loglevel)
+    # XXX: required to propagate ``tractor`` loglevel to piker
+    # logging
+    get_console_log(
+        loglevel
+        or tractor.current_actor().loglevel
+    )
 
     # local state sanity checks
     # TODO: check for any stale shm entries for this symbol
@@ -464,7 +472,7 @@ async def open_feed_bus(
     assert 'brokerd' in servicename
     assert brokername in servicename
 
-    bus = get_feed_bus(brokername)
+    bus: _FeedsBus = get_feed_bus(brokername)
     sub_registered = trio.Event()
 
     flumes: dict[str, Flume] = {}
@@ -768,7 +776,7 @@ async def maybe_open_feed(
     '''
     fqme = fqmes[0]
 
-    async with maybe_open_context(
+    async with trionics.maybe_open_context(
         acm_func=open_feed,
         kwargs={
             'fqmes': fqmes,
@@ -788,7 +796,7 @@ async def maybe_open_feed(
             # add a new broadcast subscription for the quote stream
             # if this feed is likely already in use
 
-            async with gather_contexts(
+            async with trionics.gather_contexts(
                 mngrs=[stream.subscribe() for stream in feed.streams.values()]
             ) as bstreams:
                 for bstream, flume in zip(bstreams, feed.flumes.values()):
@@ -848,7 +856,7 @@ async def open_feed(
         )
 
     portals: tuple[tractor.Portal]
-    async with gather_contexts(
+    async with trionics.gather_contexts(
         brokerd_ctxs,
     ) as portals:
 
@@ -900,7 +908,7 @@ async def open_feed(
         assert len(feed.mods) == len(feed.portals)
 
         async with (
-            gather_contexts(bus_ctxs) as ctxs,
+            trionics.gather_contexts(bus_ctxs) as ctxs,
         ):
             stream_ctxs: list[tractor.MsgStream] = []
             for (
@@ -942,7 +950,7 @@ async def open_feed(
             brokermod: ModuleType
             fqmes: list[str]
             async with (
-                gather_contexts(stream_ctxs) as streams,
+                trionics.gather_contexts(stream_ctxs) as streams,
             ):
                 for (
                     stream,
@@ -958,6 +966,12 @@ async def open_feed(
                         if brokermod.name == flume.mkt.broker:
                             flume.stream = stream
 
-                assert len(feed.mods) == len(feed.portals) == len(feed.streams)
+                assert (
+                    len(feed.mods)
+                    ==
+                    len(feed.portals)
+                    ==
+                    len(feed.streams)
+                )
 
                 yield feed

piker/service/_actor_runtime.py

@@ -100,6 +100,10 @@ async def open_piker_runtime(
             or [_default_reg_addr]
         )
 
+        if ems := tractor_kwargs.get('enable_modules'):
+            # import pdbp; pdbp.set_trace()
+            enable_modules.extend(ems)
+
         async with (
             tractor.open_root_actor(
 

piker/storage/cli.py

@@ -1,5 +1,5 @@
 # piker: trading gear for hackers
-# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of pikers)
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -19,6 +19,7 @@ Storage middle-ware CLIs.
 
 """
 from __future__ import annotations
+# from datetime import datetime
 from pathlib import Path
 import time
 
@@ -36,11 +37,8 @@ from piker.cli import cli
 from piker.config import get_conf_dir
 from piker.data import (
     ShmArray,
-    tsp,
-)
-from piker.data.history import (
-    iter_dfs_from_shms,
 )
+from piker import tsp
 from . import (
     log,
 )
@@ -189,8 +187,8 @@ def anal(
                 frame=history,
                 period=period,
             )
-            if null_segs:
-                await tractor.pause()
+            # TODO: do tsp queries to backcend to fill i missing
+            # history and then prolly write it to tsdb!
 
             shm_df: pl.DataFrame = await client.as_df(
                 fqme,
@@ -206,14 +204,23 @@ def anal(
                 diff,
             ) = tsp.dedupe(shm_df)
 
+            write_edits: bool = True
+            if (
+                write_edits
+                and (
+                    diff
+                    or null_segs
+                )
+            ):
+                await tractor.pause()
 
-            if diff:
                 await client.write_ohlcv(
                     fqme,
                     ohlcv=deduped,
                     timeframe=period,
                 )
 
+            else:
                 # TODO: something better with tab completion..
                 # is there something more minimal but nearly as
                 # functional as ipython?
@@ -243,11 +250,11 @@ def ldshm(
             ),
         ):
             df: pl.DataFrame | None = None
-            for shmfile, shm, shm_df in iter_dfs_from_shms(fqme):
+            for shmfile, shm, shm_df in tsp.iter_dfs_from_shms(fqme):
 
                 # compute ohlc properties for naming
                 times: np.ndarray = shm.array['time']
-                period_s: float = times[-1] - times[-2]
+                period_s: float = float(times[-1] - times[-2])
                 if period_s < 1.:
                     raise ValueError(
                         f'Something is wrong with time period for {shm}:\n{times}'
@@ -270,10 +277,85 @@ def ldshm(
 
                 # TODO: maybe only optionally enter this depending
                 # on some CLI flags and/or gap detection?
-                if not gaps.is_empty():
-                    await tractor.pause()
+                if (
+                    not gaps.is_empty()
+                    or null_segs
+                ):
+                    from piker.ui._remote_ctl import (
+                        open_annot_ctl,
+                        AnnotCtl,
+                    )
+                    annot_ctl: AnnotCtl
+                    async with open_annot_ctl() as annot_ctl:
+                        for i in range(gaps.height):
 
-                if null_segs:
+                            row: pl.DataFrame = gaps[i]
+
+                            # TODO: can we eventually remove this
+                            # once we figure out why the epoch cols
+                            # don't match?
+                            iend: int = row['index'][0]
+                            # dt: datetime = row['dt'][0]
+                            # dt_prev: datetime = row['dt_prev'][0]
+
+                            # the gap's right-most bar's OPEN value
+                            # at that time (sample) step.
+                            # dt_end_t: float = dt.timestamp()
+
+                            # TODO: FIX HOW/WHY these aren't matching
+                            # and are instead off by 4hours (EST
+                            # vs. UTC?!?!)
+                            # end_t: float = row['time']
+                            # assert (
+                            #     dt.timestamp()
+                            #     ==
+                            #     end_t
+                            # )
+
+                            # the gap's left-most bar's CLOSE value
+                            # at that time (sample) step.
+
+                            prev_r: pl.DataFrame = df.filter(
+                                pl.col('index') == gaps[0]['index'] - 1
+                            )
+                            istart: int = prev_r['index'][0]
+                            # dt_start_t: float = dt_prev.timestamp()
+
+                            # start_t: float = prev_r['time']
+                            # assert (
+                            #     dt_start_t
+                            #     ==
+                            #     start_t
+                            # )
+
+                            # TODO: implement px-col width measure
+                            # and ensure at least as many px-cols
+                            # shown per rect as configured by user.
+                            gap_w: float = abs((iend - istart))
+                            # await tractor.pause()
+                            if gap_w < 6:
+                                margin: float = 6
+                                iend += margin
+                                istart -= margin
+
+                            ro: tuple[float, float] = (
+                                # dt_end_t,
+                                iend,
+                                row['open'][0],
+                            )
+                            lc: tuple[float, float] = (
+                                # dt_start_t,
+                                istart,
+                                prev_r['close'][0],
+                            )
+
+                            aid: int = await annot_ctl.add_rect(
+                                fqme=fqme,
+                                timeframe=period_s,
+                                start_pos=lc,
+                                end_pos=ro,
+                            )
+                            assert aid
                             await tractor.pause()
 
                 # write to parquet file?

piker/storage/nativedb.py

@@ -56,8 +56,6 @@ from datetime import datetime
 from pathlib import Path
 import time
 
-# from bidict import bidict
-# import tractor
 import numpy as np
 import polars as pl
 from pendulum import (
@@ -65,10 +63,10 @@ from pendulum import (
 )
 
 from piker import config
+from piker import tsp
 from piker.data import (
     def_iohlcv_fields,
     ShmArray,
-    tsp,
 )
 from piker.log import get_logger
 from . import TimeseriesNotFound

piker/tsp/__init__.py

@@ -32,6 +32,7 @@ from __future__ import annotations
 from datetime import datetime
 from functools import partial
 from pathlib import Path
+from pprint import pformat
 from types import ModuleType
 from typing import (
     Callable,
@@ -53,25 +54,64 @@ import polars as pl
 from ..accounting import (
     MktPair,
 )
-from ._util import (
+from ..data._util import (
     log,
 )
-from ._sharedmem import (
+from ..data._sharedmem import (
     maybe_open_shm_array,
     ShmArray,
 )
-from ._source import def_iohlcv_fields
-from ._sampling import (
+from ..data._source import def_iohlcv_fields
+from ..data._sampling import (
     open_sample_stream,
 )
-from .tsp import (
-    dedupe,
+from ._anal import (
+
     get_null_segs,
     iter_null_segs,
-    sort_diff,
     Frame,
-    # Seq,
+    Seq,
+
+    # codec-ish
+    np2pl,
+    pl2np,
+
+    # `numpy` only
+    slice_from_time,
+
+    # `polars` specific
+    dedupe,
+    with_dts,
+    detect_time_gaps,
+    sort_diff,
+
+    # TODO:
+    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,
 )
@@ -229,6 +269,7 @@ async def maybe_fill_null_segments(
         # - remember that in the display side, only refersh this
         #   if the respective history is actually "in view".
         #   loop
+        try:
             await sampler_stream.send({
                 'broadcast_all': {
 
@@ -239,6 +280,9 @@ async def maybe_fill_null_segments(
                     'backfilling': (mkt.fqme, timeframe),
                 },
             })
+        except tractor.ContextCancelled:
+            # log.exception
+            await tractor.pause()
 
     null_segs_detected.set()
     # RECHECK for more null-gaps
@@ -252,21 +296,54 @@ async def maybe_fill_null_segments(
         and
         len(null_segs[-1])
     ):
-        await tractor.pause()
+        (
+            iabs_slices,
+            iabs_zero_rows,
+            zero_t,
+        ) = null_segs
+        log.warning(
+            f'{len(iabs_slices)} NULL TIME SEGMENTS DETECTED!\n'
+            f'{pformat(iabs_slices)}'
+        )
 
-    array = shm.array
-    zeros = array[array['low'] == 0]
-
-    # always backfill gaps with the earliest (price) datum's
+        # TODO: always backfill gaps with the earliest (price) datum's
         # value to avoid the y-ranger including zeros and completely
         # stretching the y-axis..
-    if 0 < zeros.size:
-        zeros[[
+        # array: np.ndarray = shm.array
+        # zeros = array[array['low'] == 0]
+        ohlc_fields: list[str] = [
             'open',
             'high',
             'low',
             'close',
-        ]] = shm._array[zeros['index'][0] - 1]['close']
+        ]
+
+        for istart, istop in iabs_slices:
+
+            # get view into buffer for null-segment
+            gap: np.ndarray = shm._array[istart:istop]
+
+            # copy the oldest OHLC samples forward
+            gap[ohlc_fields] = shm._array[istart]['close']
+
+            start_t: float = shm._array[istart]['time']
+            t_diff: float = (istop - istart)*timeframe
+            gap['time'] = np.arange(
+                start=start_t,
+                stop=start_t + t_diff,
+                step=timeframe,
+            )
+
+            await sampler_stream.send({
+                'broadcast_all': {
+
+                    # XXX NOTE XXX: see the
+                    # `.ui._display.increment_history_view()` if block
+                    # that looks for this info to FORCE a hard viz
+                    # redraw!
+                    'backfilling': (mkt.fqme, timeframe),
+                },
+            })
 
             # TODO: interatively step through any remaining
             # time-gaps/null-segments and spawn piecewise backfiller
@@ -277,14 +354,10 @@ async def maybe_fill_null_segments(
             #     parallel possible no matter the backend?
             # -[ ] fill algo: do queries in alternating "latest, then
             #    earliest, then latest.. etc?"
-    # if (
-    #     next_end_dt not in frame[
-    # ):
-    #     pass
+            # await tractor.pause()
 
 
 async def start_backfill(
-    tn: trio.Nursery,
     get_hist,
     mod: ModuleType,
     mkt: MktPair,
@@ -338,7 +411,6 @@ async def start_backfill(
             # settings above when the tsdb is detected as being empty.
             backfill_until_dt = backfill_from_dt.subtract(**period_duration)
 
-
         # STAGE NOTE: "backward history gap filling":
         # - we push to the shm buffer until we have history back
         #   until the latest entry loaded from the tsdb's table B)
@@ -682,6 +754,8 @@ async def back_load_from_tsdb(
 
 
 async def push_latest_frame(
+    # box-type only that should get packed with the datetime
+    # objects received for the latest history frame
     dt_eps: list[DateTime, DateTime],
     shm: ShmArray,
     get_hist: Callable[
@@ -691,8 +765,11 @@ async def push_latest_frame(
     timeframe: float,
     config: dict,
 
-    task_status: TaskStatus[None] = trio.TASK_STATUS_IGNORED,
-):
+    task_status: TaskStatus[
+        Exception | list[datetime, datetime]
+    ] = trio.TASK_STATUS_IGNORED,
+
+) -> list[datetime, datetime] | None:
     # get latest query's worth of history all the way
     # back to what is recorded in the tsdb
     try:
@@ -709,17 +786,19 @@ async def push_latest_frame(
             mr_start_dt,
             mr_end_dt,
         ])
+        task_status.started(dt_eps)
 
     # XXX: timeframe not supported for backend (since
     # above exception type), terminate immediately since
     # there's no backfilling possible.
     except DataUnavailable:
-        task_status.started()
+        task_status.started(None)
 
         if timeframe > 1:
             await tractor.pause()
 
-        return
+        # prolly tf not supported
+        return None
 
     # NOTE: on the first history, most recent history
     # frame we PREPEND from the current shm ._last index
@@ -731,11 +810,16 @@ async def push_latest_frame(
         prepend=True,  # append on first frame
     )
 
+    return dt_eps
+
 
 async def load_tsdb_hist(
     storage: StorageClient,
     mkt: MktPair,
     timeframe: float,
+
+    task_status: TaskStatus[None] = trio.TASK_STATUS_IGNORED,
+
 ) -> tuple[
     np.ndarray,
     DateTime,
@@ -821,6 +905,12 @@ async def tsdb_backfill(
                 config,
             )
 
+            tsdb_entry: tuple = await load_tsdb_hist(
+                storage,
+                mkt,
+                timeframe,
+            )
+
         # tell parent task to continue
         # TODO: really we'd want this the other way with the
         # tsdb load happening asap and the since the latest
@@ -828,28 +918,36 @@ async def tsdb_backfill(
         # latency?
         task_status.started()
 
-            tsdb_entry: tuple = await load_tsdb_hist(
-                storage,
-                mkt,
-                timeframe,
-            )
-
         # NOTE: iabs to start backfilling from, reverse chronological,
         # ONLY AFTER the first history frame has been pushed to
         # mem!
         backfill_gap_from_shm_index: int = shm._first.value + 1
 
+        # Prepend any tsdb history into the rt-shm-buffer which
+        # should NOW be getting filled with the most recent history
+        # pulled from the data-backend.
+        if dt_eps:
+            # well then, unpack the latest (gap) backfilled frame dts
             (
                 mr_start_dt,
                 mr_end_dt,
             ) = dt_eps
 
-        async with trio.open_nursery() as tn:
+            # NOTE: when there's no offline data, there's 2 cases:
+            # - data backend doesn't support timeframe/sample
+            #   period (in which case `dt_eps` should be `None` and
+            #   we shouldn't be here!), or
+            # - no prior history has been stored (yet) and we need
+            #   todo full backfill of the history now.
+            if tsdb_entry is None:
+                # indicate to backfill task to fill the whole
+                # shm buffer as much as it can!
+                last_tsdb_dt = None
 
-            # Prepend any tsdb history to the shm buffer which should
-            # now be full of the most recent history pulled from the
-            # backend's last frame.
-            if tsdb_entry:
+            # there's existing tsdb history from (offline) storage
+            # so only backfill the gap between the
+            # most-recent-frame (mrf) and that latest sample.
+            else:
                 (
                     tsdb_history,
                     first_tsdb_dt,
@@ -859,10 +957,11 @@ async def tsdb_backfill(
             # if there is a gap to backfill from the first
             # history frame until the last datum loaded from the tsdb
             # continue that now in the background
+            async with trio.open_nursery() as tn:
+
                 bf_done = await tn.start(
                     partial(
                         start_backfill,
-                        tn=tn,
                         get_hist=get_hist,
                         mod=mod,
                         mkt=mkt,
@@ -871,13 +970,16 @@ async def tsdb_backfill(
 
                         backfill_from_shm_index=backfill_gap_from_shm_index,
                         backfill_from_dt=mr_start_dt,
+
                         sampler_stream=sampler_stream,
                         backfill_until_dt=last_tsdb_dt,
+
                         storage=storage,
                         write_tsdb=True,
                     )
                 )
-
+                nulls_detected: trio.Event | None = None
+                if last_tsdb_dt is not None:
                     # calc the index from which the tsdb data should be
                     # prepended, presuming there is a gap between the
                     # latest frame (loaded/read above) and the latest
@@ -962,8 +1064,10 @@ async def tsdb_backfill(
                         mkt=mkt,
                     ))
 
+            # 2nd nursery END
 
             # TODO: who would want to?
+            if nulls_detected:
                 await nulls_detected.wait()
 
             await bf_done.wait()
@@ -1010,7 +1114,6 @@ async def tsdb_backfill(
 
 async def manage_history(
     mod: ModuleType,
-    bus: _FeedsBus,
     mkt: MktPair,
     some_data_ready: trio.Event,
     feed_is_live: trio.Event,
@@ -1167,7 +1270,6 @@ async def manage_history(
                     tsdb_backfill,
                     mod=mod,
                     storemod=storemod,
-                    # bus,
                     storage=client,
                     mkt=mkt,
                     shm=tf2mem[timeframe],
@@ -1252,13 +1354,11 @@ def iter_dfs_from_shms(
         assert not opened
         ohlcv = shm.array
 
-        from ..data import tsp
-        df: pl.DataFrame = tsp.np2pl(ohlcv)
+        from ._anal import np2pl
+        df: pl.DataFrame = np2pl(ohlcv)
 
         yield (
             shmfile,
             shm,
             df,
         )
-
-

piker/tsp/_anal.py

@@ -319,9 +319,8 @@ def get_null_segs(
     if num_gaps < 1:
         if absi_zeros.size > 1:
             absi_zsegs = [[
-                # see `get_hist()` in backend, should ALWAYS be
-                # able to handle a `start_dt=None`!
-                # None,
+                # TODO: maybe mk these max()/min() limits func
+                # consts instead of called more then once?
                 max(
                     absi_zeros[0] - 1,
                     0,
@@ -359,7 +358,10 @@ def get_null_segs(
         # corresponding to the first zero-segment's row, we add it
         # manually here.
         absi_zsegs.append([
+            max(
                 absi_zeros[0] - 1,
+                0,
+            ),
             None,
         ])
 
@@ -400,14 +402,18 @@ def get_null_segs(
 
         else:
             if 0 < num_gaps < 2:
-                absi_zsegs[-1][1] = absi_zeros[-1] + 1
+                absi_zsegs[-1][1] = min(
+                    absi_zeros[-1] + 1,
+                    frame['index'][-1],
+                )
 
             iabs_first: int = frame['index'][0]
             for start, end in absi_zsegs:
+
                 ts_start: float = times[start - iabs_first]
                 ts_end: float = times[end - iabs_first]
                 if (
-                    ts_start == 0
+                    (ts_start == 0 and not start == 0)
                     or
                     ts_end == 0
                 ):
@@ -451,11 +457,13 @@ def iter_null_segs(
     ],
     None,
 ]:
-    if null_segs is None:
-        null_segs: tuple = get_null_segs(
+    if not (
+        null_segs := get_null_segs(
             frame,
             period=timeframe,
         )
+    ):
+        return
 
     absi_pairs_zsegs: list[list[float, float]]
     izeros: Seq
@@ -502,6 +510,7 @@ def iter_null_segs(
         )
 
 
+# TODO: move to ._pl_anal
 def with_dts(
     df: pl.DataFrame,
     time_col: str = 'time',
@@ -517,7 +526,7 @@ def with_dts(
         pl.from_epoch(pl.col(time_col)).alias('dt'),
     ]).with_columns([
         pl.from_epoch(
-            pl.col(f'{time_col}_prev')
+            column=pl.col(f'{time_col}_prev'),
         ).alias('dt_prev'),
         pl.col('dt').diff().alias('dt_diff'),
     ]) #.with_columns(
@@ -525,19 +534,6 @@ def with_dts(
     # )
 
 
-def dedup_dt(
-    df: pl.DataFrame,
-) -> pl.DataFrame:
-    '''
-    Drop duplicate date-time rows (normally from an OHLC frame).
-
-    '''
-    return df.unique(
-        subset=['dt'],
-        maintain_order=True,
-    )
-
-
 t_unit: Literal = Literal[
     'days',
     'hours',
@@ -651,7 +647,11 @@ def dedupe(src_df: pl.DataFrame) -> tuple[
         )
 
     # remove duplicated datetime samples/sections
-    deduped: pl.DataFrame = dedup_dt(df)
+    deduped: pl.DataFrame = df.unique(
+        subset=['dt'],
+        maintain_order=True,
+    )
+
     deduped_gaps = detect_time_gaps(deduped)
 
     diff: int = (

piker/ui/_cursor.py

@@ -272,10 +272,15 @@ class ContentsLabels:
         x_in: int,
 
     ) -> None:
-        for chart, name, label, update in self._labels:
+        for (
+            chart,
+            name,
+            label,
+            update,
+        )in self._labels:
 
             viz = chart.get_viz(name)
-            array = viz.shm.array
+            array: np.ndarray = viz.shm._array
             index = array[viz.index_field]
             start = index[0]
             stop = index[-1]
@@ -286,7 +291,7 @@ class ContentsLabels:
             ):
                 # out of range
                 print('WTF out of range?')
-                continue
+                # continue
 
             # call provided update func with data point
             try:
@@ -294,6 +299,7 @@ class ContentsLabels:
                 ix = np.searchsorted(index, x_in)
                 if ix > len(array):
                     breakpoint()
+
                 update(ix, array)
 
             except IndexError:

piker/ui/_curve.py

@@ -56,8 +56,8 @@ _line_styles: dict[str, int] = {
 
 class FlowGraphic(pg.GraphicsObject):
     '''
-    Base class with minimal interface for `QPainterPath` implemented,
-    real-time updated "data flow" graphics.
+    Base class with minimal interface for `QPainterPath`
+    implemented, real-time updated "data flow" graphics.
 
     See subtypes below.
 
@@ -167,11 +167,12 @@ class FlowGraphic(pg.GraphicsObject):
         return None
 
     # XXX: due to a variety of weird jitter bugs and "smearing"
-    # artifacts when click-drag panning and viewing history time series,
-    # we offer this ctx-mngr interface to allow temporarily disabling
-    # Qt's graphics caching mode; this is now currently used from
-    # ``ChartView.start/signal_ic()`` methods which also disable the
-    # rt-display loop when the user is moving around a view.
+    # artifacts when click-drag panning and viewing history time
+    # series, we offer this ctx-mngr interface to allow temporarily
+    # disabling Qt's graphics caching mode; this is now currently
+    # used from ``ChartView.start/signal_ic()`` methods which also
+    # disable the rt-display loop when the user is moving around
+    # a view.
     @cm
     def reset_cache(self) -> None:
         try:

piker/ui/_dataviz.py

@@ -49,7 +49,7 @@ from ..data._formatters import (
     OHLCBarsAsCurveFmtr,  # OHLC converted to line
     StepCurveFmtr,  # "step" curve (like for vlm)
 )
-from ..data.tsp import (
+from ..tsp import (
     slice_from_time,
 )
 from ._ohlc import (
@@ -563,7 +563,8 @@ class Viz(Struct):
 
     def view_range(self) -> tuple[int, int]:
         '''
-        Return the start and stop x-indexes for the managed ``ViewBox``.
+        Return the start and stop x-indexes for the managed
+        ``ViewBox``.
 
         '''
         vr = self.plot.viewRect()

piker/ui/_display.py

@@ -470,6 +470,10 @@ async def graphics_update_loop(
         if ds.hist_vars['i_last'] < ds.hist_vars['i_last_append']:
             await tractor.pause()
 
+    try:
+        from . import _remote_ctl
+        _remote_ctl._dss = dss
+
         # main real-time quotes update loop
         stream: tractor.MsgStream
         async with feed.open_multi_stream() as stream:
@@ -519,6 +523,12 @@ async def graphics_update_loop(
                         quote,
                     )
 
+    finally:
+        # XXX: cancel any remote annotation control ctxs
+        _remote_ctl._dss = None
+        for ctx in _remote_ctl._ctxs:
+            await ctx.cancel()
+
 
 def graphics_update_cycle(
     ds: DisplayState,
@@ -1235,7 +1245,7 @@ async def display_symbol_data(
     fast from a cached watch-list.
 
     '''
-    sbar = godwidget.window.status_bar
+    # sbar = godwidget.window.status_bar
     # historical data fetch
     # brokermod = brokers.get_brokermod(provider)
 
@@ -1245,11 +1255,11 @@ async def display_symbol_data(
     #     group_key=loading_sym_key,
     # )
 
-    for fqme in fqmes:
-        loading_sym_key = sbar.open_status(
-            f'loading {fqme} ->',
-            group_key=True
-        )
+    # for fqme in fqmes:
+    #     loading_sym_key = sbar.open_status(
+    #         f'loading {fqme} ->',
+    #         group_key=True
+    #     )
 
     # (TODO: make this not so shit XD)
     # close group status once a symbol feed fully loads to view.
@@ -1422,7 +1432,7 @@ async def display_symbol_data(
                 start_fsp_displays,
                 rt_linked,
                 flume,
-                loading_sym_key,
+                # loading_sym_key,
                 loglevel,
             )
 

piker/ui/_editors.py

@@ -21,7 +21,8 @@ Higher level annotation editors.
 from __future__ import annotations
 from collections import defaultdict
 from typing import (
-    TYPE_CHECKING
+    Sequence,
+    TYPE_CHECKING,
 )
 
 import pyqtgraph as pg
@@ -31,24 +32,37 @@ from pyqtgraph import (
     QtCore,
     QtWidgets,
 )
+from PyQt5.QtCore import (
+    QPointF,
+    QRectF,
+)
 from PyQt5.QtGui import (
     QColor,
+    QTransform,
 )
 from PyQt5.QtWidgets import (
+    QGraphicsProxyWidget,
+    QGraphicsScene,
     QLabel,
 )
 
 from pyqtgraph import functions as fn
-from PyQt5.QtCore import QPointF
 import numpy as np
 
 from piker.types import Struct
-from ._style import hcolor, _font
+from ._style import (
+    hcolor,
+    _font,
+)
 from ._lines import LevelLine
 from ..log import get_logger
 
 if TYPE_CHECKING:
-    from ._chart import GodWidget
+    from ._chart import (
+        GodWidget,
+        ChartPlotWidget,
+    )
+    from ._interaction import ChartView
 
 
 log = get_logger(__name__)
@@ -65,7 +79,7 @@ class ArrowEditor(Struct):
         uid: str,
         x: float,
         y: float,
-        color='default',
+        color: str = 'default',
         pointing: str | None = None,
 
     ) -> pg.ArrowItem:
@@ -251,27 +265,56 @@ class LineEditor(Struct):
         return lines
 
 
-class SelectRect(QtWidgets.QGraphicsRectItem):
+def as_point(
+    pair: Sequence[float, float] | QPointF,
+) -> list[QPointF, QPointF]:
+    '''
+    Case any input tuple of floats to a a list of `QPoint` objects
+    for use in Qt geometry routines.
 
+    '''
+    if isinstance(pair, QPointF):
+        return pair
+
+    return QPointF(pair[0], pair[1])
+
+
+# TODO: maybe implement better, something something RectItemProxy??
+# -[ ] dig into details of how proxy's work?
+#    https://doc.qt.io/qt-5/qgraphicsscene.html#addWidget
+# -[ ] consider using `.addRect()` maybe?
+
+class SelectRect(QtWidgets.QGraphicsRectItem):
+    '''
+    A data-view "selection rectangle": the most fundamental
+    geometry for annotating data views.
+
+    - https://doc.qt.io/qt-5/qgraphicsrectitem.html
+    - https://doc.qt.io/qt-6/qgraphicsrectitem.html
+
+    '''
     def __init__(
         self,
         viewbox: ViewBox,
-        color: str = 'dad_blue',
+        color: str | None = None,
     ) -> None:
         super().__init__(0, 0, 1, 1)
 
         # self.rbScaleBox = QGraphicsRectItem(0, 0, 1, 1)
-        self.vb = viewbox
-        self._chart: 'ChartPlotWidget' = None  # noqa
+        self.vb: ViewBox = viewbox
 
-        # override selection box color
+        self._chart: ChartPlotWidget | None = None  # noqa
+
+        # TODO: maybe allow this to be dynamic via a method?
+        #l override selection box color
+        color: str = color or 'dad_blue'
         color = QColor(hcolor(color))
+
         self.setPen(fn.mkPen(color, width=1))
         color.setAlpha(66)
         self.setBrush(fn.mkBrush(color))
         self.setZValue(1e9)
         self.hide()
-        self._label = None
 
         label = self._label = QLabel()
         label.setTextFormat(0)  # markdown
@@ -281,13 +324,15 @@ class SelectRect(QtWidgets.QGraphicsRectItem):
             QtCore.Qt.AlignLeft
             # | QtCore.Qt.AlignVCenter
         )
+        label.hide()  # always right after init
 
         # proxy is created after containing scene is initialized
-        self._label_proxy = None
-        self._abs_top_right = None
+        self._label_proxy: QGraphicsProxyWidget | None = None
+        self._abs_top_right: Point | None = None
 
-        # TODO: "swing %" might be handy here (data's max/min # % change)
-        self._contents = [
+        # TODO: "swing %" might be handy here (data's max/min
+        # # % change)?
+        self._contents: list[str] = [
             'change: {pchng:.2f} %',
             'range: {rng:.2f}',
             'bars: {nbars}',
@@ -297,12 +342,30 @@ class SelectRect(QtWidgets.QGraphicsRectItem):
             'sigma: {std:.2f}',
         ]
 
+        self.add_to_view(viewbox)
+
+    def add_to_view(
+        self,
+        view: ChartView,
+    ) -> None:
+        '''
+        Self-defined view hookup impl which will
+        also re-assign the internal ref.
+
+        '''
+        view.addItem(
+            self,
+            ignoreBounds=True,
+        )
+        if self.vb is not view:
+            self.vb = view
+
     @property
-    def chart(self) -> 'ChartPlotWidget':  # noqa
+    def chart(self) -> ChartPlotWidget:  # noqa
         return self._chart
 
     @chart.setter
-    def chart(self, chart: 'ChartPlotWidget') -> None:  # noqa
+    def chart(self, chart: ChartPlotWidget) -> None:  # noqa
         self._chart = chart
         chart.sigRangeChanged.connect(self.update_on_resize)
         palette = self._label.palette()
@@ -315,57 +378,155 @@ class SelectRect(QtWidgets.QGraphicsRectItem):
         )
 
     def update_on_resize(self, vr, r):
-        """Re-position measure label on view range change.
+        '''
+        Re-position measure label on view range change.
 
-        """
+        '''
         if self._abs_top_right:
             self._label_proxy.setPos(
                 self.vb.mapFromView(self._abs_top_right)
             )
 
-    def mouse_drag_released(
+    def set_scen_pos(
         self,
-        p1: QPointF,
-        p2: QPointF
+        scen_p1: QPointF,
+        scen_p2: QPointF,
+
+        update_label: bool = True,
+
     ) -> None:
-        """Called on final button release for mouse drag with start and
-        end positions.
+        '''
+        Set position from scene coords of selection rect (normally
+        from mouse position) and accompanying label, move label to
+        match.
 
-        """
-        self.set_pos(p1, p2)
+        '''
+        # NOTE XXX: apparently just setting it doesn't work!?
+        # i have no idea why but it's pretty weird we have to do
+        # this transform thing which was basically pulled verbatim
+        # from the `pg.ViewBox.updateScaleBox()` method.
+        view_rect: QRectF = self.vb.childGroup.mapRectFromScene(
+            QRectF(
+                scen_p1, 
+                scen_p2,
+            )
+        )
+        self.setPos(view_rect.topLeft())
+        # XXX: does not work..!?!?
+        # https://doc.qt.io/qt-5/qgraphicsrectitem.html#setRect
+        # self.setRect(view_rect)
 
-    def set_pos(
-        self,
-        p1: QPointF,
-        p2: QPointF
-    ) -> None:
-        """Set position of selection rect and accompanying label, move
-        label to match.
+        tr = QTransform.fromScale(
+            view_rect.width(),
+            view_rect.height(),
+        )
+        self.setTransform(tr)
 
-        """
-        if self._label_proxy is None:
-            # https://doc.qt.io/qt-5/qgraphicsproxywidget.html
-            self._label_proxy = self.vb.scene().addWidget(self._label)
-
-        start_pos = self.vb.mapToView(p1)
-        end_pos = self.vb.mapToView(p2)
-
-        # map to view coords and update area
-        r = QtCore.QRectF(start_pos, end_pos)
-
-        # old way; don't need right?
-        # lr = QtCore.QRectF(p1, p2)
-        # r = self.vb.childGroup.mapRectFromParent(lr)
-
-        self.setPos(r.topLeft())
-        self.resetTransform()
-        self.setRect(r)
+        # XXX: never got this working, was always offset
+        # / transformed completely wrong (and off to the far right
+        # from the cursor?)
+        # self.set_view_pos(
+        #     view_rect=view_rect,
+        #     # self.vwqpToView(p1),
+        #     # self.vb.mapToView(p2),
+        #     # start_pos=self.vb.mapToScene(p1),
+        #     # end_pos=self.vb.mapToScene(p2),
+        # )
         self.show()
 
-        y1, y2 = start_pos.y(), end_pos.y()
-        x1, x2 = start_pos.x(), end_pos.x()
+        if update_label:
+            self.init_label(view_rect)
 
-        # TODO: heh, could probably use a max-min streamin algo here too
+    def set_view_pos(
+        self,
+
+        start_pos: QPointF | Sequence[float, float] | None = None,
+        end_pos: QPointF | Sequence[float, float] | None = None,
+        view_rect: QRectF | None = None,
+
+        update_label: bool = True,
+
+    ) -> None:
+        '''
+        Set position from `ViewBox` coords (i.e. from the actual
+        data domain) of rect (and any accompanying label which is
+        moved to match).
+
+        '''
+        if self._chart is None:
+            raise RuntimeError(
+                'You MUST assign a `SelectRect.chart: ChartPlotWidget`!'
+            )
+
+        if view_rect is None:
+            # ensure point casting
+            start_pos: QPointF = as_point(start_pos)
+            end_pos: QPointF = as_point(end_pos)
+
+            # map to view coords and update area
+            view_rect = QtCore.QRectF(
+                start_pos,
+                end_pos,
+            )
+
+        self.setPos(view_rect.topLeft())
+
+        # NOTE: SERIOUSLY NO IDEA WHY THIS WORKS...
+        # but it does and all the other commented stuff above
+        # dint, dawg..
+
+        # self.resetTransform()
+        # self.setRect(view_rect)
+
+        tr = QTransform.fromScale(
+            view_rect.width(),
+            view_rect.height(),
+        )
+        self.setTransform(tr)
+
+        if update_label:
+            self.init_label(view_rect)
+
+        print(
+            'SelectRect modify:\n'
+            f'QRectF: {view_rect}\n'
+            f'start_pos: {start_pos}\n'
+            f'end_pos: {end_pos}\n'
+        )
+        self.show()
+
+    def init_label(
+        self,
+        view_rect: QRectF,
+   ) -> QLabel:
+
+        # should be init-ed in `.__init__()`
+        label: QLabel = self._label
+        cv: ChartView = self.vb
+
+        # https://doc.qt.io/qt-5/qgraphicsproxywidget.html
+        if self._label_proxy is None:
+            scen: QGraphicsScene = cv.scene()
+            # NOTE: specifically this is passing a widget
+            # pointer to the scene's `.addWidget()` as per,
+            # https://doc.qt.io/qt-5/qgraphicsproxywidget.html#embedding-a-widget-with-qgraphicsproxywidget
+            self._label_proxy: QGraphicsProxyWidget = scen.addWidget(label)
+
+        # get label startup coords
+        tl: QPointF = view_rect.topLeft()
+        br: QPointF = view_rect.bottomRight()
+
+        x1, y1 = tl.x(), tl.y()
+        x2, y2 = br.x(), br.y()
+
+        # TODO: to remove, previous label corner point unpacking
+        # x1, y1 = start_pos.x(), start_pos.y()
+        # x2, y2 = end_pos.x(), end_pos.y()
+        # y1, y2 = start_pos.y(), end_pos.y()
+        # x1, x2 = start_pos.x(), end_pos.x()
+
+        # TODO: heh, could probably use a max-min streamin algo
+        # here too?
         _, xmn = min(y1, y2), min(x1, x2)
         ymx, xmx = max(y1, y2), max(x1, x2)
 
@@ -375,26 +536,35 @@ class SelectRect(QtWidgets.QGraphicsRectItem):
         ixmn, ixmx = round(xmn), round(xmx)
         nbars = ixmx - ixmn + 1
 
-        chart = self._chart
-        data = chart.get_viz(chart.name).shm.array[ixmn:ixmx]
+        chart: ChartPlotWidget = self._chart
+        data: np.ndarray = chart.get_viz(
+            chart.name
+        ).shm.array[ixmn:ixmx]
 
         if len(data):
-            std = data['close'].std()
-            dmx = data['high'].max()
-            dmn = data['low'].min()
+            std: float = data['close'].std()
+            dmx: float = data['high'].max()
+            dmn: float = data['low'].min()
         else:
             dmn = dmx = std = np.nan
 
         # update label info
-        self._label.setText('\n'.join(self._contents).format(
-            pchng=pchng, rng=rng, nbars=nbars,
-            std=std, dmx=dmx, dmn=dmn,
+        label.setText('\n'.join(self._contents).format(
+            pchng=pchng,
+            rng=rng,
+            nbars=nbars,
+            std=std,
+            dmx=dmx,
+            dmn=dmn,
         ))
 
         # print(f'x2, y2: {(x2, y2)}')
         # print(f'xmn, ymn: {(xmn, ymx)}')
 
-        label_anchor = Point(xmx + 2, ymx)
+        label_anchor = Point(
+            xmx + 2,
+            ymx,
+        )
 
         # XXX: in the drag bottom-right -> top-left case we don't
         # want the label to overlay the box.
@@ -403,13 +573,16 @@ class SelectRect(QtWidgets.QGraphicsRectItem):
         #     # label_anchor = Point(x2, y2 + self._label.height())
         #     label_anchor = Point(xmn, ymn)
 
-        self._abs_top_right = label_anchor
-        self._label_proxy.setPos(self.vb.mapFromView(label_anchor))
-        # self._label.show()
+        self._abs_top_right: Point = label_anchor
+        self._label_proxy.setPos(
+            cv.mapFromView(label_anchor)
+        )
+        label.show()
 
     def clear(self):
-        """Clear the selection box from view.
+        '''
+        Clear the selection box from view.
 
-        """
+        '''
         self._label.hide()
         self.hide()

piker/ui/_fsp.py

@@ -181,7 +181,10 @@ async def open_fsp_sidepane(
 async def open_fsp_actor_cluster(
     names: list[str] = ['fsp_0', 'fsp_1'],
 
-) -> AsyncGenerator[int, dict[str, tractor.Portal]]:
+) -> AsyncGenerator[
+    int,
+    dict[str, tractor.Portal]
+]:
 
     from tractor._clustering import open_actor_cluster
 
@@ -557,7 +560,7 @@ class FspAdmin:
         conf: dict,  # yeah probably dumb..
         loglevel: str = 'error',
 
-    ) -> (trio.Event, ChartPlotWidget):
+    ) -> trio.Event:
 
         flume, started = await self.start_engine_task(
             target,
@@ -924,7 +927,7 @@ async def start_fsp_displays(
 
     linked: LinkedSplits,
     flume: Flume,
-    group_status_key: str,
+    # group_status_key: str,
     loglevel: str,
 
 ) -> None:
@@ -971,21 +974,23 @@ async def start_fsp_displays(
             flume,
         ) as admin,
     ):
-        statuses = []
+        statuses: list[trio.Event] = []
         for target, conf in fsp_conf.items():
-            started = await admin.open_fsp_chart(
+            started: trio.Event = await admin.open_fsp_chart(
                 target,
                 conf,
             )
-            done = linked.window().status_bar.open_status(
-                f'loading fsp, {target}..',
-                group_key=group_status_key,
-            )
-            statuses.append((started, done))
+            # done = linked.window().status_bar.open_status(
+            #     f'loading fsp, {target}..',
+            #     group_key=group_status_key,
+            # )
+            # statuses.append((started, done))
+            statuses.append(started)
 
-        for fsp_loaded, status_cb in statuses:
+        # for fsp_loaded, status_cb in statuses:
+        for fsp_loaded in statuses:
             await fsp_loaded.wait()
             profiler(f'attached to fsp portal: {target}')
-            status_cb()
+            # status_cb()
 
     # blocks on nursery until all fsp actors complete

piker/ui/_interaction.py

@@ -30,7 +30,11 @@ from typing import (
 )
 
 import pyqtgraph as pg
-# from pyqtgraph.GraphicsScene import mouseEvents
+# NOTE XXX: pg is super annoying and re-implements it's own mouse
+# event subsystem.. we should really look into re-working/writing
+# this down the road.. Bo
+from pyqtgraph.GraphicsScene import mouseEvents as mevs
+# from pyqtgraph.GraphicsScene.mouseEvents import MouseDragEvent
 from PyQt5.QtWidgets import QGraphicsSceneMouseEvent as gs_mouse
 from PyQt5.QtGui import (
     QWheelEvent,
@@ -466,6 +470,7 @@ class ChartView(ViewBox):
     mode_name: str = 'view'
     def_delta: float = 616 * 6
     def_scale_factor: float = 1.016 ** (def_delta * -1 / 20)
+    # annots: dict[int, GraphicsObject] = {}
 
     def __init__(
         self,
@@ -486,6 +491,7 @@ class ChartView(ViewBox):
             # defaultPadding=0.,
             **kwargs
         )
+
         # for "known y-range style"
         self._static_yrange = static_yrange
 
@@ -500,7 +506,11 @@ class ChartView(ViewBox):
 
         # add our selection box annotator
         self.select_box = SelectRect(self)
-        self.addItem(self.select_box, ignoreBounds=True)
+        # self.select_box.add_to_view(self)
+        # self.addItem(
+        #     self.select_box,
+        #     ignoreBounds=True,
+        # )
 
         self.mode = None
         self.order_mode: bool = False
@@ -711,17 +721,18 @@ class ChartView(ViewBox):
 
     def mouseDragEvent(
         self,
-        ev,
+        ev: mevs.MouseDragEvent,
         axis: int | None = None,
 
     ) -> None:
-        pos = ev.pos()
-        lastPos = ev.lastPos()
-        dif = pos - lastPos
-        dif = dif * -1
+        pos: Point = ev.pos()
+        lastPos: Point = ev.lastPos()
+        dif: Point = (pos - lastPos) * -1
+        # dif: Point = pos - lastPos
+        # dif: Point = dif * -1
 
         # NOTE: if axis is specified, event will only affect that axis.
-        button = ev.button()
+        btn = ev.button()
 
         # Ignore axes if mouse is disabled
         mouseEnabled = np.array(
@@ -733,7 +744,7 @@ class ChartView(ViewBox):
             mask[1-axis] = 0.0
 
         # Scale or translate based on mouse button
-        if button & (
+        if btn & (
             QtCore.Qt.LeftButton | QtCore.Qt.MidButton
         ):
             # zoom y-axis ONLY when click-n-drag on it
@@ -756,34 +767,55 @@ class ChartView(ViewBox):
                 # XXX: WHY
                 ev.accept()
 
-                down_pos = ev.buttonDownPos()
+                down_pos: Point = ev.buttonDownPos(
+                    btn=btn,
+                )
+                scen_pos: Point = ev.scenePos()
+                scen_down_pos: Point = ev.buttonDownScenePos(
+                    btn=btn,
+                )
 
                 # This is the final position in the drag
                 if ev.isFinish():
 
-                    self.select_box.mouse_drag_released(down_pos, pos)
+                    # import pdbp; pdbp.set_trace()
 
-                    ax = QtCore.QRectF(down_pos, pos)
-                    ax = self.childGroup.mapRectFromParent(ax)
+                    # NOTE: think of this as a `.mouse_drag_release()`
+                    # (bc HINT that's what i called the shit ass
+                    # method that wrapped this call [yes, as a single
+                    # fucking call] originally.. you bish, guille)
+                    # Bo.. oraleeee
+                    self.select_box.set_scen_pos(
+                        # down_pos,
+                        # pos,
+                        scen_down_pos,
+                        scen_pos,
+                    )
 
                     # this is the zoom transform cmd
-                    self.showAxRect(ax)
-
+                    ax = QtCore.QRectF(down_pos, pos)
+                    ax = self.childGroup.mapRectFromParent(ax)
+                    # self.showAxRect(ax)
                     # axis history tracking
                     self.axHistoryPointer += 1
                     self.axHistory = self.axHistory[
                         :self.axHistoryPointer] + [ax]
 
                 else:
-                    print('drag finish?')
-                    self.select_box.set_pos(down_pos, pos)
+                    self.select_box.set_scen_pos(
+                        # down_pos,
+                        # pos,
+                        scen_down_pos,
+                        scen_pos,
+                    )
 
                     # update shape of scale box
                     # self.updateScaleBox(ev.buttonDownPos(), ev.pos())
-                    self.updateScaleBox(
-                        down_pos,
-                        ev.pos(),
-                    )
+                    # breakpoint()
+                    # self.updateScaleBox(
+                    #     down_pos,
+                    #     ev.pos(),
+                    # )
 
             # PANNING MODE
             else:
@@ -822,7 +854,7 @@ class ChartView(ViewBox):
                 # ev.accept()
 
         # WEIRD "RIGHT-CLICK CENTER ZOOM" MODE
-        elif button & QtCore.Qt.RightButton:
+        elif btn & QtCore.Qt.RightButton:
 
             if self.state['aspectLocked'] is not False:
                 mask[0] = 0

piker/ui/_pg_overrides.py

@@ -24,8 +24,6 @@ view transforms.
 """
 import pyqtgraph as pg
 
-from ._axes import Axis
-
 
 def invertQTransform(tr):
     """Return a QTransform that is the inverse of *tr*.
@@ -53,6 +51,9 @@ def _do_overrides() -> None:
     pg.functions.invertQTransform = invertQTransform
     pg.PlotItem = PlotItem
 
+    from ._axes import Axis
+    pg.Axis = Axis
+
     # enable "QPainterPathPrivate for faster arrayToQPath" from
     # https://github.com/pyqtgraph/pyqtgraph/pull/2324
     pg.setConfigOption('enableExperimental', True)
@@ -234,7 +235,7 @@ class PlotItem(pg.PlotItem):
                 # ``ViewBox`` geometry bug.. where a gap for the
                 # 'bottom' axis is somehow left in?
                 # axis = pg.AxisItem(orientation=name, parent=self)
-                axis = Axis(
+                axis = pg.Axis(
                     self,
                     orientation=name,
                     parent=self,

piker/ui/_remote_ctl.py

@@ -0,0 +1,273 @@
+# piker: trading gear for hackers
+# Copyright (C) Tyler Goodlet (in stewardship for pikers)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+'''
+Remote control tasks for sending annotations (and maybe more cmds)
+to a chart from some other actor.
+
+'''
+from __future__ import annotations
+from contextlib import asynccontextmanager as acm
+from pprint import pformat
+from typing import (
+    Any,
+    AsyncContextManager,
+)
+
+import tractor
+from tractor import trionics
+from tractor import (
+    Portal,
+    Context,
+    MsgStream,
+)
+from PyQt5.QtWidgets import (
+    QGraphicsItem,
+)
+
+from piker.log import get_logger
+from piker.types import Struct
+from piker.service import find_service
+from ._display import DisplayState
+from ._interaction import ChartView
+from ._editors import SelectRect
+from ._chart import ChartPlotWidget
+
+
+log = get_logger(__name__)
+
+# NOTE: this is set by the `._display.graphics_update_loop()` once
+# all chart widgets / Viz per flume have been initialized allowing
+# for remote annotation (control) of any chart-actor's mkt feed by
+# fqme lookup Bo
+_dss: dict[str, DisplayState] | None = None
+
+# stash each and every client connection so that they can all
+# be cancelled on shutdown/error.
+# TODO: make `tractor.Context` hashable via is `.cid: str`?
+# _ctxs: set[Context] = set()
+_ctxs: list[Context] = []
+
+# global map of all uniquely created annotation-graphics
+# so that they can be mutated (eventually) by a client.
+_annots: dict[int, QGraphicsItem] = {}
+
+
+@tractor.context
+async def remote_annotate(
+    ctx: Context,
+) -> None:
+
+    global _dss, _ctxs
+    assert _dss
+
+    _ctxs.append(ctx)
+
+    # send back full fqme symbology to caller
+    await ctx.started(list(_dss))
+
+    async with ctx.open_stream() as annot_req_stream:
+        async for msg in annot_req_stream:
+            match msg:
+                case {
+                    'annot': 'SelectRect',
+                    'fqme': fqme,
+                    'timeframe': timeframe,
+                    'meth': str(meth),
+                    'kwargs': dict(kwargs),
+                }:
+
+                    ds: DisplayState = _dss[fqme]
+                    chart: ChartPlotWidget = {
+                        60: ds.hist_chart,
+                        1: ds.chart,
+                    }[timeframe]
+                    cv: ChartView = chart.cv
+
+                    # sanity
+                    if timeframe == 60:
+                        assert (
+                            chart.linked.godwidget.hist_linked.chart.view
+                            is
+                            cv
+                        )
+
+                    # annot type lookup from cmd
+                    rect = SelectRect(
+                        viewbox=cv,
+
+                        # TODO: make this more dynamic?
+                        # -[ ] pull from conf.toml?
+                        # -[ ] add `.set_color()` method to type?
+                        # -[ ] make a green/red based on direction
+                        #    instead of default static color?
+                        color=kwargs.pop('color', None),
+                    )
+                    # XXX NOTE: this is REQUIRED to set the rect
+                    # resize callback!
+                    rect.chart: ChartPlotWidget = chart
+
+                    # delegate generically to the requested method
+                    getattr(rect, meth)(**kwargs)
+                    rect.show()
+                    await annot_req_stream.send(id(rect))
+
+                case _:
+                    log.error(
+                        'Unknown remote annotation cmd:\n'
+                        f'{pformat(msg)}'
+                    )
+
+
+class AnnotCtl(Struct):
+    '''
+    A control for remote "data annotations".
+
+    You know those "squares they always show in machine vision
+    UIs.." this API allows you to remotely control stuff like that
+    in some other graphics actor.
+
+    '''
+    ctx2fqmes: dict[str, str]
+    fqme2stream: dict[str, MsgStream]
+
+    async def add_rect(
+        self,
+        fqme: str,
+        timeframe: float,
+        start_pos: tuple[float, float],
+        end_pos: tuple[float, float],
+
+        # TODO: a `Literal['view', 'scene']` for this?
+        domain: str = 'view',  # or 'scene'
+        color: str = 'dad_blue',
+
+    ) -> int:
+        '''
+        Add a `SelectRect` annotation to the target view, return
+        the instances `id(obj)` from the remote UI actor.
+
+        '''
+        ipc: MsgStream = self.fqme2stream[fqme]
+        await ipc.send({
+            'fqme': fqme,
+            'annot': 'SelectRect',
+            'timeframe': timeframe,
+            # 'meth': str(meth),
+            'meth': 'set_view_pos' if domain == 'view' else 'set_scene_pos',
+            'kwargs': {
+                'start_pos': tuple(start_pos),
+                'end_pos': tuple(end_pos),
+                'color': color,
+                'update_label': False,
+            },
+        })
+        return (await ipc.receive())
+
+    async def modify(
+        self,
+        aid: int,  # annotation id
+        meth: str,  # far end graphics object method to invoke
+        params: dict[str, Any],  # far end `meth(**kwargs)`
+    ) -> bool:
+        '''
+        Modify an existing (remote) annotation's graphics
+        paramters, thus changing it's appearance / state in real
+        time.
+
+        '''
+        raise NotImplementedError
+
+    async def remove(
+        self,
+        uid: int,
+    ) -> bool:
+        '''
+        Remove an existing annotation by instance id.
+
+        '''
+        raise NotImplementedError
+
+
+
+@acm
+async def open_annot_ctl(
+    uid: tuple[str, str] | None = None,
+
+) -> AnnotCtl:
+    # TODO: load connetion to a specific chart actor
+    # -[ ] pull from either service scan or config
+    # -[ ] return some kinda client/proxy thinger?
+    #    -[ ] maybe we should finally just provide this as
+    #       a `tractor.hilevel.CallableProxy` or wtv?
+    # -[ ] use this from the storage.cli stuff to mark up gaps!
+
+    maybe_portals: list[Portal] | None
+    fqmes: list[str]
+    async with find_service(
+        service_name='chart',
+        first_only=False,
+    ) as maybe_portals:
+
+        ctx_mngrs: list[AsyncContextManager] = []
+
+        # TODO: print the current discoverable actor UID set
+        # here as well?
+        if not maybe_portals:
+            raise RuntimeError('No chart UI actors found in service domain?')
+
+        for portal in maybe_portals:
+            ctx_mngrs.append(
+                portal.open_context(remote_annotate)
+            )
+
+        ctx2fqmes: dict[str, set[str]] = {}
+        fqme2stream: dict[str, MsgStream] = {}
+        client = AnnotCtl(
+            ctx2fqmes=ctx2fqmes,
+            fqme2stream=fqme2stream,
+        )
+
+        stream_ctxs: list[AsyncContextManager] = []
+        async with trionics.gather_contexts(ctx_mngrs) as ctxs:
+            for (ctx, fqmes) in ctxs:
+                stream_ctxs.append(ctx.open_stream())
+
+                # fill lookup table of mkt addrs to IPC ctxs
+                for fqme in fqmes:
+                    if other := fqme2stream.get(fqme):
+                        raise ValueError(
+                            f'More then one chart displays {fqme}!?\n'
+                            'Other UI actor info:\n'
+                            f'channel: {other._ctx.chan}]\n'
+                            f'actor uid: {other._ctx.chan.uid}]\n'
+                            f'ctx id: {other._ctx.cid}]\n'
+                        )
+
+                    ctx2fqmes.setdefault(
+                        ctx.cid,
+                        set(),
+                    ).add(fqme)
+
+            async with trionics.gather_contexts(stream_ctxs) as streams:
+                for stream in streams:
+                    fqmes: set[str] = ctx2fqmes[stream._ctx.cid]
+                    for fqme in fqmes:
+                        fqme2stream[fqme] = stream
+
+                yield client
+                # TODO: on graceful teardown should we try to
+                # remove all annots that were created/modded?

piker/ui/cli.py

@@ -228,5 +228,10 @@ def chart(
                 'loglevel': tractorloglevel,
                 'name': 'chart',
                 'registry_addrs': list(set(regaddrs)),
+                'enable_modules': [
+
+                    # remote data-view annotations Bo
+                    'piker.ui._remote_ctl',
+                ],
             },
         )

piker/ui/view_mode.py

@@ -31,7 +31,7 @@ import pendulum
 import pyqtgraph as pg
 
 from piker.types import Struct
-from ..data.tsp import slice_from_time
+from ..tsp import slice_from_time
 from ..log import get_logger
 from ..toolz import Profiler