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Allow setting label position on labeled slider (#294)

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Lorenzo Gaifas
2025-06-03 11:24:58 +02:00
committed by GitHub
parent 257d97ae0f
commit a9fa720577
1 changed files with 43 additions and 12 deletions
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55
src/superqt/sliders/_labeled.py
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@@ -185,6 +185,7 @@ class QLabeledSlider(_SliderProxy, QAbstractSlider):
self._slider = self._slider_class(parent=self)
self._label = SliderLabel(self._slider, connect=self._setValue, parent=self)
self._edge_label_mode: EdgeLabelMode = EdgeLabelMode.LabelIsValue
self._edge_label_position: LabelPosition = LabelPosition.LabelsRight
self._rename_signals()
self._slider.actionTriggered.connect(self.actionTriggered.emit)
@@ -205,18 +206,29 @@ class QLabeledSlider(_SliderProxy, QAbstractSlider):
marg = (0, 0, 0, 0)
if orientation == Qt.Orientation.Vertical:
layout = QVBoxLayout()
layout.addWidget(self._slider, alignment=Qt.AlignmentFlag.AlignHCenter)
layout.addWidget(self._label, alignment=Qt.AlignmentFlag.AlignHCenter)
if not self._edge_label_position:
layout.addWidget(self._slider, alignment=Qt.AlignmentFlag.AlignHCenter)
elif self._edge_label_position == LabelPosition.LabelsBelow:
layout.addWidget(self._slider, alignment=Qt.AlignmentFlag.AlignHCenter)
layout.addWidget(self._label, alignment=Qt.AlignmentFlag.AlignHCenter)
else:
layout.addWidget(self._label, alignment=Qt.AlignmentFlag.AlignHCenter)
layout.addWidget(self._slider, alignment=Qt.AlignmentFlag.AlignHCenter)
self._label.setAlignment(Qt.AlignmentFlag.AlignCenter)
layout.setSpacing(1)
else:
if self._edge_label_mode == EdgeLabelMode.NoLabel:
marg = (0, 0, 5, 0)
layout = QHBoxLayout() # type: ignore
layout.addWidget(self._slider)
layout.addWidget(self._label)
self._label.setAlignment(Qt.AlignmentFlag.AlignRight)
if not self._edge_label_position:
layout.addWidget(self._slider)
elif self._edge_label_position == LabelPosition.LabelsRight:
layout.addWidget(self._slider)
layout.addWidget(self._label)
self._label.setAlignment(Qt.AlignmentFlag.AlignRight)
else:
layout.addWidget(self._label)
layout.addWidget(self._slider)
self._label.setAlignment(Qt.AlignmentFlag.AlignLeft)
marg = (0, 0, 5, 0)
layout.setSpacing(6)
old_layout = self.layout()
@@ -249,27 +261,46 @@ class QLabeledSlider(_SliderProxy, QAbstractSlider):
)
self._edge_label_mode = opt
self._on_slider_range_changed(self.minimum(), self.maximum())
if not self._edge_label_mode:
self._label.hide()
w = 5 if self.orientation() == Qt.Orientation.Horizontal else 0
self.layout().setContentsMargins(0, 0, w, 0)
if self._edge_label_position == LabelPosition.LabelsRight:
self.layout().setContentsMargins(0, 0, w, 0)
elif self._edge_label_position == LabelPosition.LabelsLeft:
self.layout().setContentsMargins(0, 0, 0, w)
if opt & EdgeLabelMode.LabelIsValue:
if self.isVisible():
self._label.show()
self._label.setMode(opt)
self._label.setValue(self._slider.value())
self.layout().setContentsMargins(0, 0, 0, 0)
self._on_slider_range_changed(self.minimum(), self.maximum())
def edgeLabelPosition(self) -> LabelPosition:
"""Return where/whether a label is shown at the edge of the slider."""
return self._edge_label_position
def setEdgeLabelPosition(self, opt: LabelPosition) -> None:
"""Set where/whether a label is shown at the edge of the slider."""
if opt is LabelPosition.LabelsOnHandle:
raise ValueError("position cannot be 'LabelPosition.LabelsOnHandle'")
self._edge_label_position = opt
self._label.setVisible(bool(opt))
# TODO: make double clickable to edit
self.setOrientation(self.orientation())
# putting this after labelMode methods for the sake of mypy
EdgeLabelMode = EdgeLabelMode
LabelPosition = LabelPosition
# --------------------- private api --------------------
def _on_slider_range_changed(self, min_: int, max_: int) -> None:
slash = " / " if self._edge_label_mode & EdgeLabelMode.LabelIsValue else ""
if self._edge_label_mode & EdgeLabelMode.LabelIsRange:
self._label.setSuffix(f"{slash}{max_}")
self._label.setSuffix(f" / {max_}")
else:
self._label.setSuffix("")
self.rangeChanged.emit(min_, max_)
def _on_slider_value_changed(self, v: Any) -> None: