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Code Issues 4 Pull Requests 6 Packages Projects Releases Wiki Activity

Allow passing in parent to `Label`

vlm_plotz
Tyler Goodlet 2022-01-21 08:37:31 -05:00
parent 1a077c0553
commit 00b1b2a10c
1 changed files with 16 additions and 14 deletions
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30
piker/ui/_label.py
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@ -34,7 +34,7 @@ from ._style import (
class Label: class Label:
""" '''
A plain ol' "scene label" using an underlying ``QGraphicsTextItem``. A plain ol' "scene label" using an underlying ``QGraphicsTextItem``.
After hacking for many days on multiple "label" systems inside After hacking for many days on multiple "label" systems inside
@ -50,10 +50,8 @@ class Label:
small, re-usable label components that can actually be used to build small, re-usable label components that can actually be used to build
production grade UIs... production grade UIs...
""" '''
def __init__( def __init__(
self, self,
view: pg.ViewBox, view: pg.ViewBox,
fmt_str: str, fmt_str: str,
@ -63,6 +61,7 @@ class Label:
font_size: str = 'small', font_size: str = 'small',
opacity: float = 1, opacity: float = 1,
fields: dict = {}, fields: dict = {},
parent: pg.GraphicsObject = None,
update_on_range_change: bool = True, update_on_range_change: bool = True,
) -> None: ) -> None:
@ -71,11 +70,13 @@ class Label:
self._fmt_str = fmt_str self._fmt_str = fmt_str
self._view_xy = QPointF(0, 0) self._view_xy = QPointF(0, 0)
self.scene_anchor: Optional[Callable[..., QPointF]] = None self.scene_anchor: Optional[
Callable[..., QPointF]
] = None
self._x_offset = x_offset self._x_offset = x_offset
txt = self.txt = QtWidgets.QGraphicsTextItem() txt = self.txt = QtWidgets.QGraphicsTextItem(parent=parent)
txt.setCacheMode(QtWidgets.QGraphicsItem.DeviceCoordinateCache) txt.setCacheMode(QtWidgets.QGraphicsItem.DeviceCoordinateCache)
vb.scene().addItem(txt) vb.scene().addItem(txt)
@ -86,7 +87,6 @@ class Label:
) )
dpi_font.configure_to_dpi() dpi_font.configure_to_dpi()
txt.setFont(dpi_font.font) txt.setFont(dpi_font.font)
txt.setOpacity(opacity) txt.setOpacity(opacity)
# register viewbox callbacks # register viewbox callbacks
@ -109,7 +109,7 @@ class Label:
# self.setTextInteractionFlags(QtGui.Qt.TextEditorInteraction) # self.setTextInteractionFlags(QtGui.Qt.TextEditorInteraction)
@property @property
def color(self): def color(self) -> str:
return self._hcolor return self._hcolor
@color.setter @color.setter
@ -118,9 +118,10 @@ class Label:
self._hcolor = color self._hcolor = color
def update(self) -> None: def update(self) -> None:
'''Update this label either by invoking its '''
user defined anchoring function, or by positioning Update this label either by invoking its user defined anchoring
to the last recorded data view coordinates. function, or by positioning to the last recorded data view
coordinates.
''' '''
# move label in scene coords to desired position # move label in scene coords to desired position
@ -234,7 +235,8 @@ class Label:
class FormatLabel(QLabel): class FormatLabel(QLabel):
'''Kinda similar to above but using the widget apis. '''
Kinda similar to above but using the widget apis.
''' '''
def __init__( def __init__(
@ -273,8 +275,8 @@ class FormatLabel(QLabel):
QSizePolicy.Expanding, QSizePolicy.Expanding,
QSizePolicy.Expanding, QSizePolicy.Expanding,
) )
self.setAlignment(Qt.AlignVCenter self.setAlignment(
| Qt.AlignLeft Qt.AlignVCenter | Qt.AlignLeft
) )
self.setText(self.fmt_str) self.setText(self.fmt_str)