Use dashed crosshair, simplify x-axis alloc

its_happening
Tyler Goodlet 2020-08-31 17:17:20 -04:00
parent 19609178ce
commit 30d8e096c6
1 changed files with 21 additions and 18 deletions

View File

@ -19,6 +19,7 @@ from ._axes import YAxisLabel, XAxisLabel
_mouse_rate_limit = 30
_debounce_delay = 10
_ch_label_opac = 1
class CrossHair(pg.GraphicsObject):
@ -29,7 +30,13 @@ class CrossHair(pg.GraphicsObject):
digits: int = 0
) -> None:
super().__init__()
# XXX: not sure why these are instance variables?
# It's not like we can change them on the fly..?
self.pen = pg.mkPen(
color=hcolor('default'),
style=QtCore.Qt.DashLine,
)
self.lines_pen = pg.mkPen(
color='#a9a9a9', # gray?
style=QtCore.Qt.DashLine,
)
@ -46,12 +53,13 @@ class CrossHair(pg.GraphicsObject):
) -> None:
# add ``pg.graphicsItems.InfiniteLine``s
# vertical and horizonal lines and a y-axis label
vl = plot.addLine(x=0, pen=self.pen, movable=False)
hl = plot.addLine(y=0, pen=self.pen, movable=False)
vl = plot.addLine(x=0, pen=self.lines_pen, movable=False)
hl = plot.addLine(y=0, pen=self.lines_pen, movable=False)
yl = YAxisLabel(
parent=plot.getAxis('right'),
digits=digits or self.digits,
opacity=0.7,
opacity=_ch_label_opac,
color=self.pen,
)
# TODO: checkout what ``.sigDelayed`` can be used for
@ -82,20 +90,15 @@ class CrossHair(pg.GraphicsObject):
}
self.plots.append(plot)
# determine where to place x-axis label
if _xaxis_at == 'bottom':
# place below the last plot
self.xaxis_label = XAxisLabel(
parent=self.plots[-1].getAxis('bottom'),
opacity=0.7
)
else:
# Determine where to place x-axis label.
# Place below the last plot by default, ow
# keep x-axis right below main chart
first = self.plots[0]
xaxis = first.getAxis('bottom')
plot_index = -1 if _xaxis_at == 'bottom' else 0
self.xaxis_label = XAxisLabel(
parent=xaxis,
opacity=0.7,
parent=self.plots[plot_index].getAxis('bottom'),
opacity=_ch_label_opac,
color=self.pen,
)
def mouseAction(self, action, plot): # noqa