Drop old state from `BarsItems`

incremental_update_paths
Tyler Goodlet 2022-06-02 13:35:01 -04:00
parent 0f4bfcdf22
commit 4138cef512
1 changed files with 3 additions and 38 deletions

View File

@ -31,7 +31,6 @@ from PyQt5.QtCore import QLineF, QPointF
from .._profile import pg_profile_enabled, ms_slower_then
from ._style import hcolor
from ..log import get_logger
from ._curve import FastAppendCurve
if TYPE_CHECKING:
from ._chart import LinkedSplits
@ -42,6 +41,7 @@ log = get_logger(__name__)
def bar_from_ohlc_row(
row: np.ndarray,
# 0.5 is no overlap between arms, 1.0 is full overlap
w: float = 0.43
) -> tuple[QLineF]:
@ -87,9 +87,6 @@ class BarItems(pg.GraphicsObject):
'''
sigPlotChanged = QtCore.pyqtSignal(object)
# 0.5 is no overlap between arms, 1.0 is full overlap
w: float = 0.43
def __init__(
self,
linked: LinkedSplits,
@ -109,42 +106,13 @@ class BarItems(pg.GraphicsObject):
self.last_bar_pen = pg.mkPen(hcolor(last_bar_color), width=2)
self._name = name
self._ds_line_xy: Optional[
tuple[np.ndarray, np.ndarray]
] = None
# NOTE: this prevents redraws on mouse interaction which is
# a huge boon for avg interaction latency.
# TODO: one question still remaining is if this makes trasform
# interactions slower (such as zooming) and if so maybe if/when
# we implement a "history" mode for the view we disable this in
# that mode?
self.setCacheMode(QtWidgets.QGraphicsItem.DeviceCoordinateCache)
self._pi = plotitem
self.path = QtGui.QPainterPath()
self.fast_path = QtGui.QPainterPath()
self._xrange: tuple[int, int]
self._vrange = None
self._last_bar_lines: Optional[tuple[QLineF, ...]] = None
# track the current length of drawable lines within the larger array
self.start_index: int = 0
self.stop_index: int = 0
# downsampler-line state
self._in_ds: bool = False
self._ds_line: Optional[FastAppendCurve] = None
self._dsi: tuple[int, int] = 0, 0
self._xs_in_px: float = 0
def x_uppx(self) -> int:
if self._ds_line:
return self._ds_line.x_uppx()
else:
return 0
# we expect the downsample curve report this.
return 0
def boundingRect(self):
# Qt docs: https://doc.qt.io/qt-5/qgraphicsitem.html#boundingRect
@ -203,9 +171,6 @@ class BarItems(pg.GraphicsObject):
) -> None:
if self._in_ds:
return
profiler = pg.debug.Profiler(
disabled=not pg_profile_enabled(),
ms_threshold=ms_slower_then,