Rip out all usage of `quantdom.bases.Quotes` smh.
Tyler Goodlet
parent
14bff66ec5
commit
cc4b51cb17
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@ -5,7 +5,7 @@ import pyqtgraph as pg
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from PyQt5 import QtCore, QtGui
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from .quantdom.base import Quotes
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# from .quantdom.base import Quotes
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from .quantdom.utils import fromtimestamp
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from ._style import _font
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@ -36,10 +36,11 @@ class PriceAxis(pg.AxisItem):
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class FromTimeFieldDateAxis(pg.AxisItem):
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tick_tpl = {'D1': '%Y-%b-%d'}
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def __init__(self, *args, **kwargs):
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def __init__(self, splitter, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.splitter = splitter
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self.setTickFont(_font)
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self.quotes_count = len(Quotes) - 1
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# self.quotes_count = len(self.splitter.chart._array) - 1
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# default styling
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self.setStyle(
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@ -56,10 +57,13 @@ class FromTimeFieldDateAxis(pg.AxisItem):
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# strings = super().tickStrings(values, scale, spacing)
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s_period = 'D1'
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strings = []
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quotes_count = len(self.splitter.chart._array) - 1
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for ibar in values:
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if ibar > self.quotes_count:
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if ibar > quotes_count:
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return strings
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dt_tick = fromtimestamp(Quotes[int(ibar)].time)
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bars = self.splitter.chart._array
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dt_tick = fromtimestamp(bars[int(ibar)].time)
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strings.append(
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dt_tick.strftime(self.tick_tpl[s_period])
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)
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@ -140,9 +144,10 @@ class XAxisLabel(AxisLabel):
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def tick_to_string(self, tick_pos):
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# TODO: change to actual period
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tpl = self.parent.tick_tpl['D1']
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if tick_pos > len(Quotes):
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bars = self.parent.splitter.chart._array
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if tick_pos > len(bars):
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return 'Unknown Time'
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return fromtimestamp(Quotes[round(tick_pos)].time).strftime(tpl)
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return fromtimestamp(bars[round(tick_pos)].time).strftime(tpl)
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def boundingRect(self): # noqa
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return QtCore.QRectF(0, 0, 145, 50)
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@ -16,7 +16,7 @@ from ._style import _xaxis_at
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from ._source import Symbol, ohlc_zeros
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from .quantdom.charts import CenteredTextItem
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from .quantdom.base import Quotes
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# from .quantdom.base import Quotes
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# from .quantdom.const import ChartType
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from .quantdom.portfolio import Order, Portfolio
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@ -101,10 +101,11 @@ class SplitterPlots(QtGui.QWidget):
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self.signals_visible = False
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self.indicators = []
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self.xaxis = FromTimeFieldDateAxis(orientation='bottom')
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self.xaxis = FromTimeFieldDateAxis(orientation='bottom', splitter=self)
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# self.xaxis = pg.DateAxisItem()
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self.xaxis_ind = FromTimeFieldDateAxis(orientation='bottom')
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self.xaxis_ind = FromTimeFieldDateAxis(
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orientation='bottom', splitter=self)
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if _xaxis_at == 'bottom':
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self.xaxis.setStyle(showValues=False)
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@ -174,7 +175,9 @@ class SplitterPlots(QtGui.QWidget):
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self.chart.draw_ohlc(data)
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# TODO: this is where we would load an indicator chain
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inds = [Quotes.open]
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# XXX: note, if this isn't index aligned with
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# the source data the chart will go haywire.
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inds = [data.open]
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for d in inds:
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cv = ChartView()
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@ -377,8 +380,8 @@ class ChartPlotWidget(pg.PlotWidget):
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# update view limits
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self.set_view_limits(
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data[0]['id'],
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data[-1]['id'],
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data[0]['index'],
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data[-1]['index'],
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data['low'].min(),
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data['high'].max()
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)
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@ -525,6 +528,7 @@ def main(symbol):
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from datetime import datetime
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from ._exec import run_qtrio
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from ._source import from_df
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# uses pandas_datareader
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from .quantdom.loaders import get_quotes
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@ -539,15 +543,28 @@ def main(symbol):
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date_from=datetime(1900, 1, 1),
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date_to=datetime(2030, 12, 31),
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)
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quotes = from_df(quotes)
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# spawn chart
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splitter_chart = chart_app.load_symbol(symbol, quotes)
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import itertools
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nums = itertools.cycle([315., 320., 325.])
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nums = itertools.cycle([315., 320., 325., 310., 3])
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def gen_nums():
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for i in itertools.count():
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yield quotes[-1].close + i
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yield quotes[-1].close - i
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chart = splitter_chart.chart
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nums = gen_nums()
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while True:
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await trio.sleep(0.05)
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splitter_chart.chart._graphics['ohlc'].update_last_bar(
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{'last': next(nums)})
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# splitter_chart.chart.plotItem.sigPlotChanged.emit(self)
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# breakpoint()
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await trio.sleep(0.1)
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new = next(nums)
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quotes[-1].close = new
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chart._graphics['ohlc'].update_last_bar({'last': new})
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# LOL this clearly isn't catching edge cases
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chart._update_yrange_limits()
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run_qtrio(_main, (), Chart)
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@ -11,7 +11,7 @@ from PyQt5 import QtCore, QtGui
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from PyQt5.QtCore import QLineF
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from .quantdom.utils import timeit
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from .quantdom.base import Quotes
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# from .quantdom.base import Quotes
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from ._style import _xaxis_at # , _tina_mode
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from ._axes import YAxisLabel, XAxisLabel
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@ -214,12 +214,12 @@ class BarItems(pg.GraphicsObject):
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# indexing here is as per the below comments
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lines[3*i:3*i+3] = (
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# high_to_low
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QLineF(q['id'], q['low'], q['id'], q['high']),
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QLineF(q['index'], q['low'], q['index'], q['high']),
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# open_sticks
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QLineF(q['id'] - self.w, q['open'], q['id'], q['open']),
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QLineF(q['index'] - self.w, q['open'], q['index'], q['open']),
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# close_sticks
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QtCore.QLineF(
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q['id'] + self.w, q['close'], q['id'], q['close'])
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q['index'] + self.w, q['close'], q['index'], q['close'])
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)
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else:
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self._last_quote = q
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