Drop legacy "historical" QPicture cruft
Tyler Goodlet
parent
ff103070ea
commit
47856666b5
|
|
@ -17,7 +17,7 @@
|
|||
"""
|
||||
Chart graphics for displaying a slew of different data types.
|
||||
"""
|
||||
|
||||
import inspect
|
||||
from typing import List, Optional, Tuple
|
||||
|
||||
import numpy as np
|
||||
|
|
@ -104,7 +104,7 @@ class LineDot(pg.CurvePoint):
|
|||
# first = x[0]
|
||||
# i = index - first
|
||||
i = index - x[0]
|
||||
if i > 0:
|
||||
if i > 0 and i < len(y):
|
||||
newPos = (index, y[i])
|
||||
QtGui.QGraphicsItem.setPos(self, *newPos)
|
||||
return True
|
||||
|
|
@ -123,9 +123,8 @@ _corner_margins = {
|
|||
('top', 'left'): (-4, -5),
|
||||
('top', 'right'): (4, -5),
|
||||
|
||||
# TODO: pretty sure y here needs to be 2x font height
|
||||
('bottom', 'left'): (-4, 14),
|
||||
('bottom', 'right'): (4, 14),
|
||||
('bottom', 'left'): (-4, lambda font_size: font_size * 2),
|
||||
('bottom', 'right'): (4, lambda font_size: font_size * 2),
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -142,7 +141,10 @@ class ContentsLabel(pg.LabelItem):
|
|||
font_size: Optional[int] = None,
|
||||
) -> None:
|
||||
font_size = font_size or _font.font.pixelSize()
|
||||
super().__init__(justify=justify_text, size=f'{str(font_size)}px')
|
||||
super().__init__(
|
||||
justify=justify_text,
|
||||
size=f'{str(font_size)}px'
|
||||
)
|
||||
|
||||
# anchor to viewbox
|
||||
self.setParentItem(chart._vb)
|
||||
|
|
@ -153,6 +155,10 @@ class ContentsLabel(pg.LabelItem):
|
|||
index = (_corner_anchors[h], _corner_anchors[v])
|
||||
margins = _corner_margins[(v, h)]
|
||||
|
||||
ydim = margins[1]
|
||||
if inspect.isfunction(margins[1]):
|
||||
margins = margins[0], ydim(font_size)
|
||||
|
||||
self.anchor(itemPos=index, parentPos=index, offset=margins)
|
||||
|
||||
def update_from_ohlc(
|
||||
|
|
@ -514,7 +520,6 @@ class BarItems(pg.GraphicsObject):
|
|||
super().__init__()
|
||||
|
||||
self.last_bar = QtGui.QPicture()
|
||||
# self.history = QtGui.QPicture()
|
||||
|
||||
self.path = QtGui.QPainterPath()
|
||||
# self._h_path = QtGui.QGraphicsPathItem(self.path)
|
||||
|
|
@ -594,18 +599,6 @@ class BarItems(pg.GraphicsObject):
|
|||
p.end()
|
||||
|
||||
# @timeit
|
||||
# def draw_history(self) -> None:
|
||||
# # TODO: avoid having to use a ```QPicture` to calc the
|
||||
# # ``.boundingRect()``, use ``QGraphicsPathItem`` instead?
|
||||
# # https://doc.qt.io/qt-5/qgraphicspathitem.html
|
||||
# # self._h_path.setPath(self.path)
|
||||
|
||||
# p = QtGui.QPainter(self.history)
|
||||
# p.setPen(self.bars_pen)
|
||||
# p.drawPath(self.path)
|
||||
# p.end()
|
||||
|
||||
@timeit
|
||||
def update_from_array(
|
||||
self,
|
||||
array: np.ndarray,
|
||||
|
|
@ -636,26 +629,19 @@ class BarItems(pg.GraphicsObject):
|
|||
# only drawing as many bars as exactly specified.
|
||||
|
||||
if prepend_length:
|
||||
# breakpoint()
|
||||
|
||||
# new history was added and we need to render a new path
|
||||
new_bars = array[:prepend_length]
|
||||
prepend_path = gen_qpath(new_bars, 0, self.w)
|
||||
|
||||
# XXX: SOMETHING IS FISHY HERE what with the old_path
|
||||
# XXX: SOMETHING IS MAYBE FISHY HERE what with the old_path
|
||||
# y value not matching the first value from
|
||||
# array[prepend_length + 1] ???
|
||||
|
||||
# update path
|
||||
old_path = self.path
|
||||
self.path = prepend_path
|
||||
# self.path.moveTo(float(index - self.w), float(new_bars[0]['open']))
|
||||
# self.path.moveTo(
|
||||
# float(istart - self.w),
|
||||
# # float(array[prepend_length + 1]['open'])
|
||||
# float(array[prepend_length]['open'])
|
||||
# )
|
||||
self.path.addPath(old_path)
|
||||
# self.draw_history()
|
||||
|
||||
if append_length:
|
||||
# generate new lines objects for updatable "current bar"
|
||||
|
|
@ -672,45 +658,8 @@ class BarItems(pg.GraphicsObject):
|
|||
self.path.moveTo(float(istop - self.w), float(new_bars[0]['open']))
|
||||
self.path.addPath(append_path)
|
||||
|
||||
# self.draw_history()
|
||||
|
||||
self._xrange = first_index, last_index
|
||||
|
||||
# if extra > 0:
|
||||
# index = array['index']
|
||||
# first, last = index[0], indext[-1]
|
||||
|
||||
# # if first < self.start_index:
|
||||
# # length = self.start_index - first
|
||||
# # prepend_path = gen_qpath(array[:sef:
|
||||
|
||||
# # generate new lines objects for updatable "current bar"
|
||||
# self._last_bar_lines = lines_from_ohlc(array[-1], self.w)
|
||||
# self.draw_last_bar()
|
||||
|
||||
# # generate new graphics to match provided array
|
||||
# # path appending logic:
|
||||
# # we need to get the previous "current bar(s)" for the time step
|
||||
# # and convert it to a sub-path to append to the historical set
|
||||
# new_history_istart = length - 2
|
||||
|
||||
# to_history = array[new_history_istart:new_history_istart + extra]
|
||||
|
||||
# new_history_qpath = gen_qpath(to_history, 0, self.w)
|
||||
|
||||
# # move to position of placement for the next bar in history
|
||||
# # and append new sub-path
|
||||
# new_bars = array[index:index + extra]
|
||||
|
||||
# # x, y coordinates for start of next open/left arm
|
||||
# self.path.moveTo(float(index - self.w), float(new_bars[0]['open']))
|
||||
|
||||
# self.path.addPath(new_history_qpath)
|
||||
|
||||
# self.start_index += extra
|
||||
|
||||
# self.draw_history()
|
||||
|
||||
if just_history:
|
||||
self.update()
|
||||
return
|
||||
|
|
@ -751,7 +700,7 @@ class BarItems(pg.GraphicsObject):
|
|||
self.draw_last_bar()
|
||||
self.update()
|
||||
|
||||
@timeit
|
||||
# @timeit
|
||||
def paint(self, p, opt, widget):
|
||||
|
||||
# profiler = pg.debug.Profiler(disabled=False, delayed=False)
|
||||
|
|
@ -767,13 +716,8 @@ class BarItems(pg.GraphicsObject):
|
|||
# as is necesarry for what's in "view". Not sure if this will
|
||||
# lead to any perf gains other then when zoomed in to less bars
|
||||
# in view.
|
||||
# p.drawPicture(0, 0, self.history)
|
||||
p.drawPicture(0, 0, self.last_bar)
|
||||
|
||||
p.setPen(self.bars_pen)
|
||||
|
||||
# TODO: does it matter which we use?
|
||||
# p.drawPath(self._h_path.path())
|
||||
p.drawPath(self.path)
|
||||
|
||||
# @timeit
|
||||
|
|
@ -794,7 +738,6 @@ class BarItems(pg.GraphicsObject):
|
|||
# compute aggregate bounding rectangle
|
||||
lb = self.last_bar.boundingRect()
|
||||
hb = self.path.boundingRect()
|
||||
# hb = self._h_path.boundingRect()
|
||||
|
||||
return QtCore.QRectF(
|
||||
# top left
|
||||
|
|
|
|||
Loading…
Reference in New Issue