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Drop old candlestick graphics code

basic_orders
Tyler Goodlet 2021-02-11 23:42:17 -05:00
parent aec8f1d25c
commit d91f07c947
1 changed files with 9 additions and 40 deletions
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49
piker/ui/_graphics/_ohlc.py
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@ -167,17 +167,18 @@ class BarItems(pg.GraphicsObject):
# 0.5 is no overlap between arms, 1.0 is full overlap # 0.5 is no overlap between arms, 1.0 is full overlap
w: float = 0.43 w: float = 0.43
# XXX: for the mega-lulz increasing width here increases draw latency...
# so probably don't do it until we figure that out.
bars_pen = pg.mkPen(hcolor('bracket'))
def __init__( def __init__(
self, self,
# scene: 'QGraphicsScene', # noqa # scene: 'QGraphicsScene', # noqa
plotitem: 'pg.PlotItem', # noqa plotitem: 'pg.PlotItem', # noqa
pen_color: str = 'bracket',
) -> None: ) -> None:
super().__init__() super().__init__()
# XXX: for the mega-lulz increasing width here increases draw latency...
# so probably don't do it until we figure that out.
self.bars_pen = pg.mkPen(hcolor(pen_color))
# NOTE: this prevents redraws on mouse interaction which is # NOTE: this prevents redraws on mouse interaction which is
# a huge boon for avg interaction latency. # a huge boon for avg interaction latency.
@ -215,7 +216,9 @@ class BarItems(pg.GraphicsObject):
This routine is usually only called to draw the initial history. This routine is usually only called to draw the initial history.
""" """
self.path = gen_qpath(data, start, self.w) hist, last = data[:-1], data[-1]
self.path = gen_qpath(hist, start, self.w)
# save graphics for later reference and keep track # save graphics for later reference and keep track
# of current internal "last index" # of current internal "last index"
@ -228,7 +231,7 @@ class BarItems(pg.GraphicsObject):
) )
# up to last to avoid double draw of last bar # up to last to avoid double draw of last bar
self._last_bar_lines = lines_from_ohlc(data[-1], self.w) self._last_bar_lines = lines_from_ohlc(last, self.w)
# trigger render # trigger render
# https://doc.qt.io/qt-5/qgraphicsitem.html#update # https://doc.qt.io/qt-5/qgraphicsitem.html#update
@ -396,37 +399,3 @@ class BarItems(pg.GraphicsObject):
) )
# print(f'bounding rect: {br}') # print(f'bounding rect: {br}')
return br return br
# XXX: when we get back to enabling tina mode for xb
# class CandlestickItems(BarItems):
# w2 = 0.7
# line_pen = pg.mkPen('#000000')
# bull_brush = pg.mkBrush('#00ff00')
# bear_brush = pg.mkBrush('#ff0000')
# def _generate(self, p):
# rects = np.array(
# [
# QtCore.QRectF(
# q.id - self.w,
# q.open,
# self.w2,
# q.close - q.open
# )
# for q in Quotes
# ]
# )
# p.setPen(self.line_pen)
# p.drawLines(
# [QtCore.QLineF(q.id, q.low, q.id, q.high)
# for q in Quotes]
# )
# p.setBrush(self.bull_brush)
# p.drawRects(*rects[Quotes.close > Quotes.open])
# p.setBrush(self.bear_brush)
# p.drawRects(*rects[Quotes.close < Quotes.open])