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# htmldelegate.py - HTML QStyledItemDelegate
#
# Copyright 2010 Steve Borho <steve@borho.org>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
from __future__ import absolute_import
from .qtcore import (
QPointF,
QSize,
)
from .qtgui import (
QAbstractTextDocumentLayout,
QPalette,
QStyle,
QStyleOptionViewItemV4,
QStyledItemDelegate,
QTextDocument,
)
class HTMLDelegate(QStyledItemDelegate):
def paint(self, painter, option, index):
# draw selection
option = QStyleOptionViewItemV4(option)
self.parent().style().drawControl(QStyle.CE_ItemViewItem, option, painter)
# draw text
doc = self._builddoc(option, index)
painter.save()
painter.setClipRect(option.rect)
painter.translate(QPointF(
option.rect.left(),
option.rect.top() + (option.rect.height() - doc.size().height()) / 2))
ctx = QAbstractTextDocumentLayout.PaintContext()
ctx.palette = option.palette
if option.state & QStyle.State_Selected:
if option.state & QStyle.State_Active:
ctx.palette.setCurrentColorGroup(QPalette.Active)
else:
ctx.palette.setCurrentColorGroup(QPalette.Inactive)
ctx.palette.setBrush(QPalette.Text, ctx.palette.highlightedText())
elif not option.state & QStyle.State_Enabled:
ctx.palette.setCurrentColorGroup(QPalette.Disabled)
doc.documentLayout().draw(painter, ctx)
painter.restore()
def sizeHint(self, option, index):
doc = self._builddoc(option, index)
return QSize(doc.idealWidth() + 5, doc.size().height())
def _builddoc(self, option, index):
doc = QTextDocument(defaultFont=option.font)
doc.setHtml(index.data())
return doc
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