M4 workin bishhhhh
Tyler Goodlet
parent
ff00993412
commit
7edfe68d4d
|
|
@ -217,6 +217,7 @@ class BarItems(pg.GraphicsObject):
|
|||
self._color = pen_color
|
||||
self.bars_pen = pg.mkPen(hcolor(pen_color), width=1)
|
||||
self.last_bar_pen = pg.mkPen(hcolor(last_bar_color), width=2)
|
||||
self._array = None
|
||||
|
||||
# NOTE: this prevents redraws on mouse interaction which is
|
||||
# a huge boon for avg interaction latency.
|
||||
|
|
@ -249,6 +250,7 @@ class BarItems(pg.GraphicsObject):
|
|||
self._ds_lines: dict[int, FastAppendCurve] = {}
|
||||
self._ds_line: Optional[FastAppendCurve] = None
|
||||
self._ds: int = 0
|
||||
self._xs_in_px: float = 0
|
||||
|
||||
def draw_from_data(
|
||||
self,
|
||||
|
|
@ -283,10 +285,11 @@ class BarItems(pg.GraphicsObject):
|
|||
# https://doc.qt.io/qt-5/qgraphicsitem.html#update
|
||||
self.update()
|
||||
|
||||
self.update_ds_line(ohlc)
|
||||
assert self._ds_line
|
||||
self._ds_line.hide()
|
||||
# self.update_ds_line(ohlc)
|
||||
# assert self._ds_line
|
||||
# self._ds_line.hide()
|
||||
|
||||
self._array = ohlc
|
||||
return self.path
|
||||
|
||||
def get_ds_line(
|
||||
|
|
@ -332,28 +335,47 @@ class BarItems(pg.GraphicsObject):
|
|||
# return None, None
|
||||
|
||||
index = ohlc['index']
|
||||
|
||||
chart = self.linked.chart
|
||||
if not chart:
|
||||
return
|
||||
else:
|
||||
px_width = round(chart.curve_width_pxs())
|
||||
|
||||
flat = rfn.structured_to_unstructured(
|
||||
ohlc[['open', 'high', 'low', 'close']]
|
||||
).flatten()
|
||||
xpts = np.linspace(start=index[0] - 0.5, stop=index[-1] + 0.5, num=4*len(ohlc))
|
||||
xpts = np.linspace(
|
||||
start=index[0] - 0.5,
|
||||
stop=index[-1] + 0.5,
|
||||
num=4*len(ohlc),
|
||||
)
|
||||
bins, x, y = ds_m4(
|
||||
xpts,
|
||||
flat,
|
||||
px_width=px_width * 8,
|
||||
)
|
||||
# x4 = np.zeros(y.shape)
|
||||
x = np.broadcast_to(x[:, None], y.shape) #.flatten()
|
||||
x = (x + np.array([-0.5, 0, 0, 0.5])).flatten()
|
||||
|
||||
# bins, x, ds = ds_m4(
|
||||
# xpts,
|
||||
# flat,
|
||||
# # px_width=self.linked.chart.curve_width_pxs()
|
||||
# px_width=self.getViewBox().width(),
|
||||
# x = np.linspace(
|
||||
# start=x[0] - 0.5,
|
||||
# stop=x[-1] + 0.5,
|
||||
# num=4*len(x),
|
||||
# )
|
||||
y = y.flatten()
|
||||
# breakpoint()
|
||||
|
||||
mxmn, x = hl2mxmn(ohlc)
|
||||
# y, x = hl2mxmn(ohlc)
|
||||
|
||||
# if self._ds_line:
|
||||
# self._pi.removeItem(self._ds_line)
|
||||
|
||||
if not curve:
|
||||
curve = FastAppendCurve(
|
||||
# y=ds.flatten(),
|
||||
y=mxmn,
|
||||
y=y,
|
||||
# y=mxmn,
|
||||
x=x,
|
||||
name='ds',
|
||||
color=self._color,
|
||||
|
|
@ -363,6 +385,7 @@ class BarItems(pg.GraphicsObject):
|
|||
self._pi.addItem(curve)
|
||||
self._ds_lines[ds] = curve
|
||||
self._ds_line = curve
|
||||
curve.ds = px_width
|
||||
|
||||
# elif ds != self._ds:
|
||||
# print(f'ds changed {self._ds} -> {ds}')
|
||||
|
|
@ -386,8 +409,13 @@ class BarItems(pg.GraphicsObject):
|
|||
# istart, istop = curve._xrange
|
||||
# curve.path = None
|
||||
# print(x[-10:])
|
||||
if px_width != curve.ds:
|
||||
print(f'redrawing {curve.ds} -> {px_width}')
|
||||
curve.path = None
|
||||
curve.ds = px_width
|
||||
|
||||
curve.update_from_array(
|
||||
y=mxmn,
|
||||
y=y,
|
||||
x=x,
|
||||
)
|
||||
# curve.update()
|
||||
|
|
@ -415,8 +443,8 @@ class BarItems(pg.GraphicsObject):
|
|||
|
||||
'''
|
||||
# XXX: always do this?
|
||||
if self._ds_line:
|
||||
curve, ds = self.update_ds_line(ohlc)
|
||||
# if self._ds_line:
|
||||
curve, ds = self.update_ds_line(ohlc)
|
||||
|
||||
# index = self.start_index
|
||||
istart, istop = self._xrange
|
||||
|
|
@ -507,6 +535,8 @@ class BarItems(pg.GraphicsObject):
|
|||
if flip_cache:
|
||||
self.setCacheMode(QtWidgets.QGraphicsItem.DeviceCoordinateCache)
|
||||
|
||||
self._array = ohlc
|
||||
|
||||
def boundingRect(self):
|
||||
# Qt docs: https://doc.qt.io/qt-5/qgraphicsitem.html#boundingRect
|
||||
|
||||
|
|
@ -530,10 +560,12 @@ class BarItems(pg.GraphicsObject):
|
|||
mx_y = hb_br.y()
|
||||
mn_y = hb_tl.y()
|
||||
|
||||
body_line = self._last_bar_lines[0]
|
||||
if body_line:
|
||||
mx_y = max(mx_y, max(body_line.y1(), body_line.y2()))
|
||||
mn_y = min(mn_y, min(body_line.y1(), body_line.y2()))
|
||||
last_lines = self._last_bar_lines
|
||||
if last_lines:
|
||||
body_line = self._last_bar_lines[0]
|
||||
if body_line:
|
||||
mx_y = max(mx_y, max(body_line.y1(), body_line.y2()))
|
||||
mn_y = min(mn_y, min(body_line.y1(), body_line.y2()))
|
||||
|
||||
return QtCore.QRectF(
|
||||
|
||||
|
|
@ -563,6 +595,9 @@ class BarItems(pg.GraphicsObject):
|
|||
is less then a pixel width on the device).
|
||||
|
||||
'''
|
||||
if not self._ds_line:
|
||||
return False
|
||||
|
||||
# this is the ``float`` value of the "number of x units" (in
|
||||
# view coords) that a pixel spans.
|
||||
xvec = self.pixelVectors()[0]
|
||||
|
|
@ -571,6 +606,10 @@ class BarItems(pg.GraphicsObject):
|
|||
else:
|
||||
xs_in_px = self._ds_line.pixelVectors()[0].x()
|
||||
|
||||
if xs_in_px != self._xs_in_px and self._array is not None:
|
||||
self.update_ds_line(self._array)
|
||||
self._xs_in_px = xs_in_px
|
||||
|
||||
linked = self.linked
|
||||
|
||||
if (
|
||||
|
|
|
|||
Loading…
Reference in New Issue