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Move marker level-line-positioning anchor to new module

fsp_feeds
Tyler Goodlet 2021-07-16 12:31:05 -04:00
parent 3aab6d67e9
commit 94d3f67707
2 changed files with 48 additions and 24 deletions
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40
piker/ui/_anchors.py 100644
View File

@ -0,0 +1,40 @@
# piker: trading gear for hackers
# Copyright (C) Tyler Goodlet (in stewardship for piker0)
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
'''
Anchor funtions for UI placement of annotions.
'''
def marker_right_points(
chart: 'ChartPlotWidget', # noqa
marker_size: int = 20,
) -> (float, float, float):
# chart = self._chart
l1_len = chart._max_l1_line_len
ryaxis = chart.getAxis('right')
r_axis_x = ryaxis.pos().x()
up_to_l1_sc = r_axis_x - l1_len
marker_right = up_to_l1_sc - (1.375 * 2 * marker_size)
line_end = marker_right - (6/16 * marker_size)
return line_end, marker_right, r_axis_x

32
piker/ui/_lines.py
View File

@ -27,6 +27,7 @@ from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import QPointF
from ._annotate import mk_marker, qgo_draw_markers
from ._anchors import marker_right_points
from ._label import Label, vbr_left, right_axis
from ._style import hcolor, _font
@ -44,7 +45,7 @@ class LevelLine(pg.InfiniteLine):
color: str = 'default',
highlight_color: str = 'default_light',
dotted: bool = False,
marker_size: int = 20,
# marker_size: int = 20,
# UX look and feel opts
always_show_labels: bool = False,
@ -74,7 +75,7 @@ class LevelLine(pg.InfiniteLine):
self._hide_xhair_on_hover = hide_xhair_on_hover
self._marker = None
self._default_mkr_size = marker_size
# self._default_mkr_size = marker_size
self._moh = only_show_markers_on_hover
self.show_markers: bool = True # presuming the line is hovered at init
@ -306,21 +307,6 @@ class LevelLine(pg.InfiniteLine):
return up_to_l1_sc
def marker_right_points(self) -> (float, float, float):
chart = self._chart
l1_len = chart._max_l1_line_len
ryaxis = chart.getAxis('right')
r_axis_x = ryaxis.pos().x()
up_to_l1_sc = r_axis_x - l1_len
size = self._default_mkr_size
marker_right = up_to_l1_sc - (1.375 * 2*size)
line_end = marker_right - (6/16 * size)
return line_end, marker_right, r_axis_x
def paint(
self,
p: QtGui.QPainter,
@ -337,7 +323,7 @@ class LevelLine(pg.InfiniteLine):
vb_left, vb_right = self._endPoints
vb = self.getViewBox()
line_end, marker_right, r_axis_x = self.marker_right_points()
line_end, marker_right, r_axis_x = marker_right_points(self._chart)
if self.show_markers and self.markers:
@ -785,7 +771,6 @@ def position_line(
return path_br.topRight() - QPointF(0, marker_label.h / 3)
marker_label.scene_anchor = arrow_tr
line._labels.append(marker_label)
@ -803,6 +788,9 @@ def position_line(
def update_pp_nav(chartview):
'''Show a pp off-screen indicator when order mode is activated.
This is like in fps games where you have a gps "nav" indicator
but your teammate is outside the range of view, except in 2D, on
the y-dimension.
'''
vr = vb.state['viewRange']
ymn, ymx = vr[1]
@ -811,11 +799,7 @@ def position_line(
marker = line._marker
label = marker.label
# provide "nav hub" like indicator for where
# the position is on the y-dimension
_, marker_right, _ = line.marker_right_points()
_, marker_right, _ = marker_right_points(line._chart)
if level > ymx: # pin to top of view
marker.setPos(