Move region selection to editors mod
parent
4a37cf768f
commit
569b2efb51
|
@ -22,6 +22,10 @@ from dataclasses import dataclass, field
|
||||||
from typing import Optional
|
from typing import Optional
|
||||||
|
|
||||||
import pyqtgraph as pg
|
import pyqtgraph as pg
|
||||||
|
from pyqtgraph import ViewBox, Point, QtCore, QtGui
|
||||||
|
from pyqtgraph import functions as fn
|
||||||
|
from PyQt5.QtCore import QPointF
|
||||||
|
import numpy as np
|
||||||
|
|
||||||
from ._style import hcolor, _font
|
from ._style import hcolor, _font
|
||||||
from ._graphics._lines import order_line, LevelLine
|
from ._graphics._lines import order_line, LevelLine
|
||||||
|
@ -289,3 +293,166 @@ class LineEditor:
|
||||||
|
|
||||||
line.delete()
|
line.delete()
|
||||||
return line
|
return line
|
||||||
|
|
||||||
|
|
||||||
|
class SelectRect(QtGui.QGraphicsRectItem):
|
||||||
|
|
||||||
|
def __init__(
|
||||||
|
self,
|
||||||
|
viewbox: ViewBox,
|
||||||
|
color: str = 'dad_blue',
|
||||||
|
) -> None:
|
||||||
|
super().__init__(0, 0, 1, 1)
|
||||||
|
|
||||||
|
# self.rbScaleBox = QtGui.QGraphicsRectItem(0, 0, 1, 1)
|
||||||
|
self.vb = viewbox
|
||||||
|
self._chart: 'ChartPlotWidget' = None # noqa
|
||||||
|
|
||||||
|
# override selection box color
|
||||||
|
color = QtGui.QColor(hcolor(color))
|
||||||
|
self.setPen(fn.mkPen(color, width=1))
|
||||||
|
color.setAlpha(66)
|
||||||
|
self.setBrush(fn.mkBrush(color))
|
||||||
|
self.setZValue(1e9)
|
||||||
|
self.hide()
|
||||||
|
self._label = None
|
||||||
|
|
||||||
|
label = self._label = QtGui.QLabel()
|
||||||
|
label.setTextFormat(0) # markdown
|
||||||
|
label.setFont(_font.font)
|
||||||
|
label.setMargin(0)
|
||||||
|
label.setAlignment(
|
||||||
|
QtCore.Qt.AlignLeft
|
||||||
|
# | QtCore.Qt.AlignVCenter
|
||||||
|
)
|
||||||
|
|
||||||
|
# proxy is created after containing scene is initialized
|
||||||
|
self._label_proxy = None
|
||||||
|
self._abs_top_right = None
|
||||||
|
|
||||||
|
# TODO: "swing %" might be handy here (data's max/min # % change)
|
||||||
|
self._contents = [
|
||||||
|
'change: {pchng:.2f} %',
|
||||||
|
'range: {rng:.2f}',
|
||||||
|
'bars: {nbars}',
|
||||||
|
'max: {dmx}',
|
||||||
|
'min: {dmn}',
|
||||||
|
# 'time: {nbars}m', # TODO: compute this per bar size
|
||||||
|
'sigma: {std:.2f}',
|
||||||
|
]
|
||||||
|
|
||||||
|
@property
|
||||||
|
def chart(self) -> 'ChartPlotWidget': # noqa
|
||||||
|
return self._chart
|
||||||
|
|
||||||
|
@chart.setter
|
||||||
|
def chart(self, chart: 'ChartPlotWidget') -> None: # noqa
|
||||||
|
self._chart = chart
|
||||||
|
chart.sigRangeChanged.connect(self.update_on_resize)
|
||||||
|
palette = self._label.palette()
|
||||||
|
|
||||||
|
# TODO: get bg color working
|
||||||
|
palette.setColor(
|
||||||
|
self._label.backgroundRole(),
|
||||||
|
# QtGui.QColor(chart.backgroundBrush()),
|
||||||
|
QtGui.QColor(hcolor('papas_special')),
|
||||||
|
)
|
||||||
|
|
||||||
|
def update_on_resize(self, vr, r):
|
||||||
|
"""Re-position measure label on view range change.
|
||||||
|
|
||||||
|
"""
|
||||||
|
if self._abs_top_right:
|
||||||
|
self._label_proxy.setPos(
|
||||||
|
self.vb.mapFromView(self._abs_top_right)
|
||||||
|
)
|
||||||
|
|
||||||
|
def mouse_drag_released(
|
||||||
|
self,
|
||||||
|
p1: QPointF,
|
||||||
|
p2: QPointF
|
||||||
|
) -> None:
|
||||||
|
"""Called on final button release for mouse drag with start and
|
||||||
|
end positions.
|
||||||
|
|
||||||
|
"""
|
||||||
|
self.set_pos(p1, p2)
|
||||||
|
|
||||||
|
def set_pos(
|
||||||
|
self,
|
||||||
|
p1: QPointF,
|
||||||
|
p2: QPointF
|
||||||
|
) -> None:
|
||||||
|
"""Set position of selection rect and accompanying label, move
|
||||||
|
label to match.
|
||||||
|
|
||||||
|
"""
|
||||||
|
if self._label_proxy is None:
|
||||||
|
# https://doc.qt.io/qt-5/qgraphicsproxywidget.html
|
||||||
|
self._label_proxy = self.vb.scene().addWidget(self._label)
|
||||||
|
|
||||||
|
start_pos = self.vb.mapToView(p1)
|
||||||
|
end_pos = self.vb.mapToView(p2)
|
||||||
|
|
||||||
|
# map to view coords and update area
|
||||||
|
r = QtCore.QRectF(start_pos, end_pos)
|
||||||
|
|
||||||
|
# old way; don't need right?
|
||||||
|
# lr = QtCore.QRectF(p1, p2)
|
||||||
|
# r = self.vb.childGroup.mapRectFromParent(lr)
|
||||||
|
|
||||||
|
self.setPos(r.topLeft())
|
||||||
|
self.resetTransform()
|
||||||
|
self.scale(r.width(), r.height())
|
||||||
|
self.show()
|
||||||
|
|
||||||
|
y1, y2 = start_pos.y(), end_pos.y()
|
||||||
|
x1, x2 = start_pos.x(), end_pos.x()
|
||||||
|
|
||||||
|
# TODO: heh, could probably use a max-min streamin algo here too
|
||||||
|
_, xmn = min(y1, y2), min(x1, x2)
|
||||||
|
ymx, xmx = max(y1, y2), max(x1, x2)
|
||||||
|
|
||||||
|
pchng = (y2 - y1) / y1 * 100
|
||||||
|
rng = abs(y1 - y2)
|
||||||
|
|
||||||
|
ixmn, ixmx = round(xmn), round(xmx)
|
||||||
|
nbars = ixmx - ixmn + 1
|
||||||
|
|
||||||
|
data = self._chart._ohlc[ixmn:ixmx]
|
||||||
|
|
||||||
|
if len(data):
|
||||||
|
std = data['close'].std()
|
||||||
|
dmx = data['high'].max()
|
||||||
|
dmn = data['low'].min()
|
||||||
|
else:
|
||||||
|
dmn = dmx = std = np.nan
|
||||||
|
|
||||||
|
# update label info
|
||||||
|
self._label.setText('\n'.join(self._contents).format(
|
||||||
|
pchng=pchng, rng=rng, nbars=nbars,
|
||||||
|
std=std, dmx=dmx, dmn=dmn,
|
||||||
|
))
|
||||||
|
|
||||||
|
# print(f'x2, y2: {(x2, y2)}')
|
||||||
|
# print(f'xmn, ymn: {(xmn, ymx)}')
|
||||||
|
|
||||||
|
label_anchor = Point(xmx + 2, ymx)
|
||||||
|
|
||||||
|
# XXX: in the drag bottom-right -> top-left case we don't
|
||||||
|
# want the label to overlay the box.
|
||||||
|
# if (x2, y2) == (xmn, ymx):
|
||||||
|
# # could do this too but needs to be added after coords transform
|
||||||
|
# # label_anchor = Point(x2, y2 + self._label.height())
|
||||||
|
# label_anchor = Point(xmn, ymn)
|
||||||
|
|
||||||
|
self._abs_top_right = label_anchor
|
||||||
|
self._label_proxy.setPos(self.vb.mapFromView(label_anchor))
|
||||||
|
# self._label.show()
|
||||||
|
|
||||||
|
def clear(self):
|
||||||
|
"""Clear the selection box from view.
|
||||||
|
|
||||||
|
"""
|
||||||
|
self._label.hide()
|
||||||
|
self.hide()
|
||||||
|
|
|
@ -22,183 +22,20 @@ from contextlib import asynccontextmanager
|
||||||
from typing import Optional
|
from typing import Optional
|
||||||
|
|
||||||
import pyqtgraph as pg
|
import pyqtgraph as pg
|
||||||
from PyQt5.QtCore import QPointF, Qt
|
from PyQt5.QtCore import Qt, QEvent
|
||||||
from PyQt5.QtCore import QEvent
|
from pyqtgraph import ViewBox, Point, QtCore
|
||||||
from pyqtgraph import ViewBox, Point, QtCore, QtGui
|
|
||||||
from pyqtgraph import functions as fn
|
from pyqtgraph import functions as fn
|
||||||
import numpy as np
|
import numpy as np
|
||||||
import trio
|
import trio
|
||||||
|
|
||||||
from ..log import get_logger
|
from ..log import get_logger
|
||||||
from ._style import _min_points_to_show, hcolor, _font
|
from ._style import _min_points_to_show
|
||||||
|
from ._editors import SelectRect
|
||||||
|
|
||||||
|
|
||||||
log = get_logger(__name__)
|
log = get_logger(__name__)
|
||||||
|
|
||||||
|
|
||||||
class SelectRect(QtGui.QGraphicsRectItem):
|
|
||||||
|
|
||||||
def __init__(
|
|
||||||
self,
|
|
||||||
viewbox: ViewBox,
|
|
||||||
color: str = 'dad_blue',
|
|
||||||
) -> None:
|
|
||||||
super().__init__(0, 0, 1, 1)
|
|
||||||
|
|
||||||
# self.rbScaleBox = QtGui.QGraphicsRectItem(0, 0, 1, 1)
|
|
||||||
self.vb = viewbox
|
|
||||||
self._chart: 'ChartPlotWidget' = None # noqa
|
|
||||||
|
|
||||||
# override selection box color
|
|
||||||
color = QtGui.QColor(hcolor(color))
|
|
||||||
self.setPen(fn.mkPen(color, width=1))
|
|
||||||
color.setAlpha(66)
|
|
||||||
self.setBrush(fn.mkBrush(color))
|
|
||||||
self.setZValue(1e9)
|
|
||||||
self.hide()
|
|
||||||
self._label = None
|
|
||||||
|
|
||||||
label = self._label = QtGui.QLabel()
|
|
||||||
label.setTextFormat(0) # markdown
|
|
||||||
label.setFont(_font.font)
|
|
||||||
label.setMargin(0)
|
|
||||||
label.setAlignment(
|
|
||||||
QtCore.Qt.AlignLeft
|
|
||||||
# | QtCore.Qt.AlignVCenter
|
|
||||||
)
|
|
||||||
|
|
||||||
# proxy is created after containing scene is initialized
|
|
||||||
self._label_proxy = None
|
|
||||||
self._abs_top_right = None
|
|
||||||
|
|
||||||
# TODO: "swing %" might be handy here (data's max/min # % change)
|
|
||||||
self._contents = [
|
|
||||||
'change: {pchng:.2f} %',
|
|
||||||
'range: {rng:.2f}',
|
|
||||||
'bars: {nbars}',
|
|
||||||
'max: {dmx}',
|
|
||||||
'min: {dmn}',
|
|
||||||
# 'time: {nbars}m', # TODO: compute this per bar size
|
|
||||||
'sigma: {std:.2f}',
|
|
||||||
]
|
|
||||||
|
|
||||||
@property
|
|
||||||
def chart(self) -> 'ChartPlotWidget': # noqa
|
|
||||||
return self._chart
|
|
||||||
|
|
||||||
@chart.setter
|
|
||||||
def chart(self, chart: 'ChartPlotWidget') -> None: # noqa
|
|
||||||
self._chart = chart
|
|
||||||
chart.sigRangeChanged.connect(self.update_on_resize)
|
|
||||||
palette = self._label.palette()
|
|
||||||
|
|
||||||
# TODO: get bg color working
|
|
||||||
palette.setColor(
|
|
||||||
self._label.backgroundRole(),
|
|
||||||
# QtGui.QColor(chart.backgroundBrush()),
|
|
||||||
QtGui.QColor(hcolor('papas_special')),
|
|
||||||
)
|
|
||||||
|
|
||||||
def update_on_resize(self, vr, r):
|
|
||||||
"""Re-position measure label on view range change.
|
|
||||||
|
|
||||||
"""
|
|
||||||
if self._abs_top_right:
|
|
||||||
self._label_proxy.setPos(
|
|
||||||
self.vb.mapFromView(self._abs_top_right)
|
|
||||||
)
|
|
||||||
|
|
||||||
def mouse_drag_released(
|
|
||||||
self,
|
|
||||||
p1: QPointF,
|
|
||||||
p2: QPointF
|
|
||||||
) -> None:
|
|
||||||
"""Called on final button release for mouse drag with start and
|
|
||||||
end positions.
|
|
||||||
|
|
||||||
"""
|
|
||||||
self.set_pos(p1, p2)
|
|
||||||
|
|
||||||
def set_pos(
|
|
||||||
self,
|
|
||||||
p1: QPointF,
|
|
||||||
p2: QPointF
|
|
||||||
) -> None:
|
|
||||||
"""Set position of selection rect and accompanying label, move
|
|
||||||
label to match.
|
|
||||||
|
|
||||||
"""
|
|
||||||
if self._label_proxy is None:
|
|
||||||
# https://doc.qt.io/qt-5/qgraphicsproxywidget.html
|
|
||||||
self._label_proxy = self.vb.scene().addWidget(self._label)
|
|
||||||
|
|
||||||
start_pos = self.vb.mapToView(p1)
|
|
||||||
end_pos = self.vb.mapToView(p2)
|
|
||||||
|
|
||||||
# map to view coords and update area
|
|
||||||
r = QtCore.QRectF(start_pos, end_pos)
|
|
||||||
|
|
||||||
# old way; don't need right?
|
|
||||||
# lr = QtCore.QRectF(p1, p2)
|
|
||||||
# r = self.vb.childGroup.mapRectFromParent(lr)
|
|
||||||
|
|
||||||
self.setPos(r.topLeft())
|
|
||||||
self.resetTransform()
|
|
||||||
self.scale(r.width(), r.height())
|
|
||||||
self.show()
|
|
||||||
|
|
||||||
y1, y2 = start_pos.y(), end_pos.y()
|
|
||||||
x1, x2 = start_pos.x(), end_pos.x()
|
|
||||||
|
|
||||||
# TODO: heh, could probably use a max-min streamin algo here too
|
|
||||||
_, xmn = min(y1, y2), min(x1, x2)
|
|
||||||
ymx, xmx = max(y1, y2), max(x1, x2)
|
|
||||||
|
|
||||||
pchng = (y2 - y1) / y1 * 100
|
|
||||||
rng = abs(y1 - y2)
|
|
||||||
|
|
||||||
ixmn, ixmx = round(xmn), round(xmx)
|
|
||||||
nbars = ixmx - ixmn + 1
|
|
||||||
|
|
||||||
data = self._chart._ohlc[ixmn:ixmx]
|
|
||||||
|
|
||||||
if len(data):
|
|
||||||
std = data['close'].std()
|
|
||||||
dmx = data['high'].max()
|
|
||||||
dmn = data['low'].min()
|
|
||||||
else:
|
|
||||||
dmn = dmx = std = np.nan
|
|
||||||
|
|
||||||
# update label info
|
|
||||||
self._label.setText('\n'.join(self._contents).format(
|
|
||||||
pchng=pchng, rng=rng, nbars=nbars,
|
|
||||||
std=std, dmx=dmx, dmn=dmn,
|
|
||||||
))
|
|
||||||
|
|
||||||
# print(f'x2, y2: {(x2, y2)}')
|
|
||||||
# print(f'xmn, ymn: {(xmn, ymx)}')
|
|
||||||
|
|
||||||
label_anchor = Point(xmx + 2, ymx)
|
|
||||||
|
|
||||||
# XXX: in the drag bottom-right -> top-left case we don't
|
|
||||||
# want the label to overlay the box.
|
|
||||||
# if (x2, y2) == (xmn, ymx):
|
|
||||||
# # could do this too but needs to be added after coords transform
|
|
||||||
# # label_anchor = Point(x2, y2 + self._label.height())
|
|
||||||
# label_anchor = Point(xmn, ymn)
|
|
||||||
|
|
||||||
self._abs_top_right = label_anchor
|
|
||||||
self._label_proxy.setPos(self.vb.mapFromView(label_anchor))
|
|
||||||
# self._label.show()
|
|
||||||
|
|
||||||
def clear(self):
|
|
||||||
"""Clear the selection box from view.
|
|
||||||
|
|
||||||
"""
|
|
||||||
self._label.hide()
|
|
||||||
self.hide()
|
|
||||||
|
|
||||||
|
|
||||||
async def handle_viewmode_inputs(
|
async def handle_viewmode_inputs(
|
||||||
|
|
||||||
view: 'ChartView',
|
view: 'ChartView',
|
||||||
|
|
Loading…
Reference in New Issue