Commit Graph

2958 Commits (79fcbcc2813a84c9ae801c6ab72ede63422c2976)

Author SHA1 Message Date
Tyler Goodlet d11dc787a1 First working attempt of search results view scaling
Scales the "view" instance that holds search results to the size of the
accompanying "slow chart" for which the search pane is a "sidepane".
A lot of mucking about was required due to resizing of the view
seemingly feeding back into window resizing and further implementing the
sizing logic such that the parent `QSplitter` can be resized as the
user's whim as well.

Details,
- add a `CompleterView._init: bool` which is set once (and only once)
  after startup where the first display of the current symbol/feed is
  shown allowing and a single *width* padding applied once at startup
  to ensure we don't have an awkward line to the right of the longest
  result.
- in `.resize_to_results()` only apply a minimum height to the view
  using `.setMinimumHeight()` with a down-scaled (`0.91` for now) height
  value from input.
- re-implement `CompleterView.show_matches()` to accept and optional
  width, heigh tuple and when not supplied pull the slow chart's
  dimensions and pass as input to the resize method.
- Make `SearchWidget` x dim sizing policy "fixed".
- register the `SearchWidget` for resize events with god.
- add `.show_only_cache_entries()` for easy results clearing.
- add `.space_dims()` to retrieve slow linked-charts dimensions.
- implement `SearchWidget.on_resize()` which is the caller of all the
  previously mentioned resizing routines.
- do resizing and cache entry showing on search loop startup and be sure
  to clear to cache when the user selects a symbol-feed with Enter.
2022-09-12 20:25:15 -04:00
Tyler Goodlet 1e81feee46 Finally get chart startup view-state kinda correct
It ended up being what'd you expect, races on the accessing shm buffer
data by the UI during the whole "mega-async-startup-everything" phase XD

So we add the following list of ad-hoc startup steps:
- do `.default_view()` on the slow chart after the fast chart is mostly
  fully spawned with the intention being to capture the state where the
  historical buffer is mostly loaded before sizing the view to the
  graphical form of the data.
- resize slow chart sidepanes from the fast chart just before sleeping
  forever (and after order mode has booted).
2022-09-12 20:25:15 -04:00
Tyler Goodlet 40a9761943 Actually support resize events..
Turns out god widget resizes aren't triggered implicitly by window
resizes, so instead, hook into the window by moving what was our useless
method to that class. Further we explicitly define and declare that our
window has a `.godwidget: GodWidget` and set it up in the bootstrap
phase - in `run_qutractor()` during `trio` guest mode configuration.

Further deatz:
- retype the runtime/bootstrap routines to take a qwidget "type" not an
  instance, and drop the whole implicit `.main_widget` stuff.
- delegate into the `GodWidget.on_win_resize()` for any window resize
  which then triggers all the custom resize callbacks we already had in
  place.
- privatize `ChartnPane.sidepane` so that it can't be mutated willy
  nilly without calling `.set_sidepane()`.
- always adjust splitter sizes inside `LinkeSplits.add_plot()`.
2022-09-12 20:25:15 -04:00
Tyler Goodlet 256bcf36d3 Drop use `tractor.trionics.gather_contexts()` in `open_handlers()` 2022-09-12 20:25:15 -04:00
Tyler Goodlet 9944277096 Handle null lines that were removed, don't error on bad $size 2022-09-12 20:25:15 -04:00
Tyler Goodlet f9dc5637fa Use rt buffer for last price on nan in ems 2022-09-12 20:25:15 -04:00
Tyler Goodlet addedc20f1 WIP search pane always shown.. 2022-09-12 20:25:15 -04:00
Tyler Goodlet 1fa6e8d9ba Only show slow chart xlabel when focussed 2022-09-12 20:25:15 -04:00
Tyler Goodlet 2a06dc997f Use pixel caching on our level lines 2022-09-12 20:25:15 -04:00
Tyler Goodlet 6b93eedcda Port to new `._position.Nav` apis in order mode 2022-09-12 20:25:15 -04:00
Tyler Goodlet a786df65de Factor pos tracker UI element mgmt into new type
More or less moves all the UI related position "nav" logic and graphics
item management into a new `._position.Nav` composite type + api for
high level mgmt of position graphics indicators across multiple charts
(fast and slow).
2022-09-12 20:25:15 -04:00
Tyler Goodlet 8f2823d5f0 Stage line only on active cursor chart 2022-09-12 20:25:15 -04:00
Tyler Goodlet 58fe220fde Use ref annotations in position mod 2022-09-12 20:25:15 -04:00
Tyler Goodlet 161448c31a Support order staging from slow chart using `.get_cursor()` 2022-09-12 20:25:15 -04:00
Tyler Goodlet 1c685189d1 Change to using real type annots 2022-09-12 20:25:15 -04:00
Tyler Goodlet ceac3f2ee4 Adjust corresponding fast/slow chart line level on edits 2022-09-12 20:25:15 -04:00
Tyler Goodlet a07367fae2 Fix div-by-zero split sizing bug 2022-09-12 20:25:15 -04:00
Tyler Goodlet 006190d227 Add fill arrow-mark support to history view 2022-09-12 20:25:15 -04:00
Tyler Goodlet 412197019e Make ArrowEditor.add()` expect a `PlotItem` as input for render 2022-09-12 20:25:15 -04:00
Tyler Goodlet 271e378ce3 Add `GodWidget.iter_linked()` interator over linked split charts 2022-09-12 20:25:15 -04:00
Tyler Goodlet 8e07fda88f Expose multi-chart-lines support through to order mode api 2022-09-12 20:25:15 -04:00
Tyler Goodlet a4935b8fa8 Make line editor multi-line aware, drop `dataclass` for `Struct` 2022-09-12 20:25:15 -04:00
Tyler Goodlet 2b76baeb10 Pass god widget to line editor and order mode instances 2022-09-12 20:25:15 -04:00
Tyler Goodlet 2dfa8976a0 Make line editor expect god as input, use new .`get_cursor()` api 2022-09-12 20:25:15 -04:00
Tyler Goodlet d3402f715b Set godwidget active cursor from xhair callback 2022-09-12 20:25:15 -04:00
Tyler Goodlet f070f9a984 Add "active cursor" api to god widget 2022-09-12 20:25:15 -04:00
Tyler Goodlet 416270ee6c Refocus view on ctl-c from search 2022-09-12 20:25:15 -04:00
Tyler Goodlet 14bee778ec Hook up kb ctrls to hist chart, order mode not working yet 2022-09-12 20:25:15 -04:00
Tyler Goodlet 10c1944de5 Proper slow chart auto y-range support
The slow (history) chart requires it's own y-range checker logic which
needs to be run in 2 cases:
- the last datum is in view and goes outside the previous mx/mn in view
- the chart is incremented a step

Since we need this duplicate logic this patch also factors the incremental
graphics update info "reading" into a new `DisplayState.incr_info()`
method that can be configured to a chart and input state and returns all
relevant "graphics update measure" in a tuple (for now).

Use this method throughout the rest of the display loop for both fast
and slow chart checks and in the `increment_history_view()` slow chart
task.
2022-09-12 20:25:15 -04:00
Tyler Goodlet 7958d8ad4f Up sample info poll loop iters 2022-09-12 20:25:15 -04:00
Tyler Goodlet 50c5dc255c Update history view y-sticky with last clear price 2022-09-12 20:25:15 -04:00
Tyler Goodlet 31735f26d3 Poll for sampling info at startup, tolerate races
Use the new `Feed.get_ds_info()` method in a poll loop to definitively
get the inter-chart sampling info and avoid races with shm buffer
backfilling.

Also, factor the history increment closure-task into
`graphics_update_loop()` which will make it clearer how to factor
all the "should we update" logic into some `DisplayState` API.
2022-09-12 20:25:15 -04:00
Tyler Goodlet 2ef6460853 Add `Feed.get_ds_info()` to detect/compute sample rates 2022-09-12 20:25:15 -04:00
Tyler Goodlet 5e98a30537 Add simplified history incrementer consumer task 2022-09-12 20:25:15 -04:00
Tyler Goodlet dd03ef42ac Return empty search result on connection failure
If you spawn a brokerd set and no `ib` data feed was started (via our
`.data.feed.Feed` api) then there will be no active client loaded and
thus wont' be connected. So in these cases just return nothing, and
I guess we'll figure out real connection failures later?
2022-09-12 20:25:15 -04:00
Tyler Goodlet 59884d251e Update history "last" bar, compute ampling ratio
Add an update call to the display loop to consistently update the last
datum in the history view chart. Compute the inter-chart sampling ratio
and use it to sync the linear region.
2022-09-12 20:25:15 -04:00
Tyler Goodlet e06e257a81 Another history view splitter proportion tweak 2022-09-12 20:25:15 -04:00
Tyler Goodlet 6e574835c8 Update history shm buffer in ohlc sampler loop 2022-09-12 20:25:15 -04:00
Tyler Goodlet 49ccfdd673 Pass history shm "last index" in init msg, assign on feed 2022-09-12 20:25:15 -04:00
Tyler Goodlet 3a434f312b Add sidepane like color region styling 2022-09-12 20:25:15 -04:00
Tyler Goodlet bb4dc448b3 Add history chart and "linear region" for syncing
Add a first draft of a working `pyqtgraph.LinearRegionItem` link between
a history view chart (+ data set) and the normal real-time "HFT" chart
set.

Add the history view (aka more downsampled data view) chart set to the
rt/hft set's splitter as it's "first widget". Hook up linear region
callbacks to enable syncing between charts including compenstating for
the downsampling rate ration (in this case hardcoded 60 since 1s to 1M,
but we'll actually compute it going forward obvs).

More to come dawgys..
2022-09-12 20:25:15 -04:00
Tyler Goodlet 9846396df2 Add initial history (view) to charting sys
Adds an additional `GodWidget.hist_linked: LinkedSplits` alongside the
renamed `.rt_linked` to enable 2 sets of linked charts with different
sampled data sets/flows. The history set is added without "all the
fixins" for now (i.e. no order mode sidepane or search integration) such
that it is merely a top level chart which shows a much longer term
history and can be added to the UI via embedding the entire history
linked-splits instance into the real-time linked set's splitter.

Further impl deats:
- adjust the `GodWidget._chart_cache: dict[str, tuple]]` to store both
  linked split chart sets per symbol so that symbol switching will
  continue to work with the added history chart (set).
- rework `.load_symbol()` to operate on both the real-time (HFT) chart
  set and the history set.
- rework `LinkedSplits.set_split_sizes()` to compensate for the history
  chart and do more detailed height calcs arithmetic to make it appear
  by default as a minor sub-chart.
- adjust `LinkedSplits.add_plot()` and `ChartPlotWidget` internals to allow
  adding a plot without a sidepane and/or container `ChartnPane`
  composite widget by checking for a `sidepane == False` input.
- make `.default_view()` accept a manual y-axis offset kwarg.
- adjust search mode to provide history linked splits to
  `.set_chart_symbol()` call.
2022-09-12 20:25:15 -04:00
Tyler Goodlet f0d417ce42 Drop status msg var deleting from ns 2022-09-12 20:25:15 -04:00
Tyler Goodlet 55fc4114b4 Initial draft code working with `pg.LinearRegionItem` 2022-09-12 20:25:15 -04:00
Tyler Goodlet 97b074365b Use rt buffer for close price pnl calcs 2022-09-12 20:25:15 -04:00
Tyler Goodlet f79c3617d6 Always load FSPs with the default (fast) sampling period 2022-09-12 20:25:15 -04:00
Tyler Goodlet 861fe791eb Allocate 2 shm buffers for history and real-time
As part of supporting a "history view" chart which shows downsampled
datums alongside our 1s (or higher) sampled OHLC we need a separate
buffer to store a the slower history from broker backends. This begins
that design by allocating 2 buffers:
- `rt_shm: ShmArray` which maps to a `/dev/shm/` file with `_rt` suffix
- `hist_shm: ShmArray` which maps to a file with `_hist` suffix

Deliver both of these shms back from both `manage_history()` and load
them as `Feed.rt_shm`/`.hist_shm` on the client side.

Impl deats:
- init the rt buffer with the first datum from loaded history and
  assign all OHLC values to that row's 'close' and the vlm to 0.
- pass the hist buffer to the backfiller task
- only spawn **one** global sampler array-row increment task per
  `brokerd` and pass in the 1s delay which we presume is our lowest
  OHLC sample rate for now.
- drop `open_sample_step_stream()` and just move its body contents into
  `Feed.index_stream()`
2022-09-12 20:25:15 -04:00
Tyler Goodlet 60052ff73a Presume shortest delay input to `increment_ohlc_buffer()`
Instead of worrying about the increment period per shm subscription,
just use the value passed as input and presume the caller knows that
only one task is necessary and that the wakeup (sampling) period should
be the shortest that is needed.

It's very unlikely we don't want at least a 1s sampling (both in terms
of task switching cost and general usage) which will eventually ship as
the default "real-time" feed "timeframe". Further, this "fast" increment
sampling task can handle all lower sampling periods (eg. 1m, 5m, 1H)
based on the current implementation just the same.

Also, add a global default sample period as `_defaul_delay_s` for use in
other internal modules.
2022-09-12 20:25:15 -04:00
Tyler Goodlet 4d2708cd42 Force 1s sample step so crypto boiz can seee 2022-09-12 20:25:15 -04:00
Tyler Goodlet d1cc52dff5 Use new public lifetime-stack class attr 2022-09-12 20:24:56 -04:00