def manual_cut_editline(text="", enabled=True) -> QLineEdit:
edit = QLineEdit(
text=text,
placeholderText="e.g. 0.0, 0.5, 1.0",
toolTip='<p style="white-space:pre">' +
'Enter cut points as a comma-separate list of \n'
'strictly increasing numbers e.g. 0.0, 0.5, 1.0).</p>',
enabled=enabled,
)
edit.setValidator(IncreasingNumbersListValidator())
edit.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Fixed)
@edit.textChanged.connect
def update():
validator = edit.validator()
if validator is not None and edit.text().strip():
state, _, _ = validator.validate(edit.text(), 0)
else:
state = QValidator.Acceptable
palette = edit.palette()
colors = {
QValidator.Intermediate: (Qt.yellow, Qt.black),
QValidator.Invalid: (Qt.red, Qt.black),
}.get(state, None)
if colors is None:
palette = QPalette()
else:
palette.setColor(QPalette.Base, colors[0])
palette.setColor(QPalette.Text, colors[1])
cr = edit.cursorRect()
p = edit.mapToGlobal(cr.bottomRight())
edit.setPalette(palette)
if state != QValidator.Acceptable and edit.isVisible():
validator.show_tip(edit, p, edit.toolTip(),
textFormat=Qt.RichText)
else:
validator.show_tip(edit, p, "")
return edit, edit.textChanged
