Drop position-line factory from lines module, add endpoint getter
Tyler Goodlet
parent
23b77fffc6
commit
271bf67e78
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@ -28,12 +28,11 @@ from PyQt5 import QtCore, QtGui, QtWidgets
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from PyQt5.QtCore import QPointF
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from PyQt5.QtGui import QGraphicsPathItem
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from ._annotate import mk_marker, qgo_draw_markers
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from ._annotate import mk_marker_path, qgo_draw_markers
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from ._anchors import (
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marker_right_points,
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vbr_left,
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right_axis,
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update_pp_nav,
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gpath_pin,
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)
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from ._label import Label
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@ -121,8 +120,6 @@ class LevelLine(pg.InfiniteLine):
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self._on_drag_end = lambda l: None
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self._y_incr_mult = 1 / chart._lc._symbol.tick_size
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self._last_scene_y: float = 0
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self._right_end_sc: float = 0
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def txt_offsets(self) -> Tuple[int, int]:
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@ -351,11 +348,12 @@ class LevelLine(pg.InfiniteLine):
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# order lines.. not sure wtf is up with that.
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# for now we're just using it on the position line.
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elif self._marker:
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# TODO: make this label update part of a scene-aware-marker
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# composed annotation
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self._marker.setPos(
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QPointF(marker_right, self.scene_y())
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)
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# TODO: make this label update part of a scene-aware-marker
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# composed annotation
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if hasattr(self._marker, 'label'):
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self._marker.label.update()
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@ -379,21 +377,26 @@ class LevelLine(pg.InfiniteLine):
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super().hide()
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if self._marker:
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self._marker.hide()
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self._marker.label.hide()
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# self._marker.label.hide()
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def hide(self) -> None:
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def show(self) -> None:
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super().show()
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if self._marker:
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self._marker.show()
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self._marker.label.show()
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def scene_right_xy(self) -> QPointF:
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return self.getViewBox().mapFromView(
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QPointF(0, self.value())
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)
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# self._marker.label.show()
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def scene_y(self) -> float:
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return self.getViewBox().mapFromView(Point(0, self.value())).y()
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return self.getViewBox().mapFromView(
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Point(0, self.value())
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).y()
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def scene_endpoint(self) -> QPointF:
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if not self._right_end_sc:
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line_end, _, _ = marker_right_points(self._chart)
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self._right_end_sc = line_end - 10
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return QPointF(self._right_end_sc, self.scene_y())
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def add_marker(
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self,
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@ -414,7 +417,6 @@ class LevelLine(pg.InfiniteLine):
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path.setPos(QPointF(rsc, self.scene_y()))
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return path
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# self.update()
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def hoverEvent(self, ev):
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"""Mouse hover callback.
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@ -630,18 +632,25 @@ def order_line(
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# resetting the graphics item transform intermittently
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# the old way which is still somehow faster?
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path = mk_marker(
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path = QGraphicsPathItem(
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mk_marker_path(
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marker_style,
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# the "position" here is now ignored since we modified
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# internals to pin markers to the right end of the line
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marker_size,
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# marker_size,
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# uncommment for the old transform / .pain() marker method
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# uncommment for the old transform / .paint() marker method
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# use_qgpath=False,
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)
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)
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path.scale(marker_size, marker_size)
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# XXX: this is our new approach but seems slower?
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path = line.add_marker(mk_marker(marker_style, marker_size))
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path = line.add_marker(path)
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# XXX: old
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# path = line.add_marker(mk_marker(marker_style, marker_size))
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line._marker = path
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assert not line.markers
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@ -717,87 +726,3 @@ def order_line(
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line.update_labels({'level': level})
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return line
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def position_line(
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chart,
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size: float,
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level: float,
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orient_v: str = 'bottom',
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) -> LevelLine:
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'''Convenience routine to add a line graphic representing an order
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execution submitted to the EMS via the chart's "order mode".
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'''
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hcolor = 'default_light'
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line = level_line(
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chart,
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level,
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color=hcolor,
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add_label=False,
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hl_on_hover=False,
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movable=False,
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hide_xhair_on_hover=False,
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use_marker_margin=True,
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only_show_markers_on_hover=False,
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always_show_labels=True,
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)
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# hide position marker when out of view (for now)
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vb = line.getViewBox()
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# arrow marker
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# scale marker size with dpi-aware font size
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font_size = _font.font.pixelSize()
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# scale marker size with dpi-aware font size
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arrow_size = floor(1.375 * font_size)
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if size > 0:
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style = '|<'
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elif size < 0:
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style = '>|'
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arrow_path = mk_marker(style, size=arrow_size)
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path_br = arrow_path.mapToScene(
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arrow_path.path()
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).boundingRect()
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# monkey-cache height for sizing on pp nav-hub
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arrow_path._height = path_br.height()
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arrow_path._width = path_br.width()
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marker_label = Label(
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view=vb,
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fmt_str='pp',
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color=hcolor,
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update_on_range_change=False,
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)
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arrow_path.label = marker_label
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marker_label.scene_anchor = partial(
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gpath_pin,
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gpath=arrow_path,
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label=marker_label,
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)
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line._labels.append(marker_label)
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marker_label.render()
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marker_label.show()
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# XXX: uses new marker drawing approach
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line.add_marker(arrow_path)
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line.set_level(level)
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# sanity check
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line.update_labels({'level': level})
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vb.sigRangeChanged.connect(partial(update_pp_nav, chartview=vb, line=line))
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return line
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