def initStyleOptionForIndex(self, option: QStyleOptionHeader,
logicalIndex: int) -> None:
"""
Similar to initStyleOptionForIndex in Qt 6.0 with the difference that
`isSectionSelected` is not used, only `sectionIntersectsSelection`
is used (isSectionSelected will scan the entire model column/row
when the whole column/row is selected).
"""
hover = self.logicalIndexAt(self.mapFromGlobal(QCursor.pos()))
pressed = self.__pressed
if self.highlightSections():
is_selected = self.__sectionIntersectsSelection
else:
is_selected = lambda _: False
state = QStyle.State_None
if self.isEnabled():
state |= QStyle.State_Enabled
if self.window().isActiveWindow():
state |= QStyle.State_Active
if self.sectionsClickable():
if logicalIndex == hover:
state |= QStyle.State_MouseOver
if logicalIndex == pressed:
state |= QStyle.State_Sunken
if self.highlightSections():
if is_selected(logicalIndex):
state |= QStyle.State_On
if self.isSortIndicatorShown() and \
self.sortIndicatorSection() == logicalIndex:
option.sortIndicator = (
QStyleOptionHeader.SortDown if self.sortIndicatorOrder()
== Qt.AscendingOrder else QStyleOptionHeader.SortUp)
style = self.style()
model = self.model()
orientation = self.orientation()
textAlignment = model.headerData(logicalIndex, self.orientation(),
Qt.TextAlignmentRole)
defaultAlignment = self.defaultAlignment()
textAlignment = (textAlignment if isinstance(textAlignment, int) else
defaultAlignment)
option.section = logicalIndex
option.state = QStyle.State(int(option.state) | int(state))
option.textAlignment = Qt.Alignment(int(textAlignment))
option.iconAlignment = Qt.AlignVCenter
text = model.headerData(logicalIndex, self.orientation(),
Qt.DisplayRole)
text = str(text) if text is not None else ""
option.text = text
icon = model.headerData(logicalIndex, self.orientation(),
Qt.DecorationRole)
try:
option.icon = QIcon(icon)
except (TypeError, ValueError): # pragma: no cover
pass
margin = 2 * style.pixelMetric(QStyle.PM_HeaderMargin, None, self)
headerArrowAlignment = style.styleHint(QStyle.SH_Header_ArrowAlignment,
None, self)
isHeaderArrowOnTheSide = headerArrowAlignment & Qt.AlignVCenter
if self.isSortIndicatorShown() and \
self.sortIndicatorSection() == logicalIndex \
and isHeaderArrowOnTheSide:
margin += style.pixelMetric(QStyle.PM_HeaderMarkSize, None, self)
if not option.icon.isNull():
margin += style.pixelMetric(QStyle.PM_SmallIconSize, None, self)
margin += style.pixelMetric(QStyle.PM_HeaderMargin, None, self)
if self.textElideMode() != Qt.ElideNone:
elideMode = self.textElideMode()
if hasattr(option, 'textElideMode'): # Qt 6.0
option.textElideMode = elideMode # pragma: no cover
else:
option.text = option.fontMetrics.elidedText(
option.text, elideMode,
option.rect.width() - margin)
foregroundBrush = model.headerData(logicalIndex, orientation,
Qt.ForegroundRole)
try:
foregroundBrush = QBrush(foregroundBrush)
except (TypeError, ValueError):
pass
else:
option.palette.setBrush(QPalette.ButtonText, foregroundBrush)
backgroundBrush = model.headerData(logicalIndex, orientation,
Qt.BackgroundRole)
try:
backgroundBrush = QBrush(backgroundBrush)
except (TypeError, ValueError):
pass
else:
option.palette.setBrush(QPalette.Button, backgroundBrush)
option.palette.setBrush(QPalette.Window, backgroundBrush)
# the section position
visual = self.visualIndex(logicalIndex)
assert visual != -1
first = self.__isFirstVisibleSection(visual)
last = self.__isLastVisibleSection(visual)
if first and last:
option.position = QStyleOptionHeader.OnlyOneSection
elif first:
option.position = QStyleOptionHeader.Beginning
elif last:
option.position = QStyleOptionHeader.End
else:
option.position = QStyleOptionHeader.Middle
option.orientation = orientation
# the selected position (in QHeaderView this is always computed even if
# highlightSections is False).
if self.highlightSections():
previousSelected = is_selected(self.logicalIndex(visual - 1))
nextSelected = is_selected(self.logicalIndex(visual + 1))
else:
previousSelected = nextSelected = False
if previousSelected and nextSelected:
option.selectedPosition = QStyleOptionHeader.NextAndPreviousAreSelected
elif previousSelected:
option.selectedPosition = QStyleOptionHeader.PreviousIsSelected
elif nextSelected:
option.selectedPosition = QStyleOptionHeader.NextIsSelected
else:
option.selectedPosition = QStyleOptionHeader.NotAdjacent
