RichText Delegate and size hint for row height

[solook]

i use this code for auto row height :

void QTableWidget::resizeRowsToContents();

void QTableWidget::resizeRowsToContents();

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and it word good but when is use this delegate

class RichTextDelegate : public QItemDelegate
{
public:
    RichTextDelegate()
{
}
void paint( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const
{
    painter->save();
    QTextDocument doc;
    QVariant value = index.data(Qt::DisplayRole);
    if (value.isValid() && !value.isNull()) {
         QString text;
         text.append("<p  style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-family:'tahoma'; font-size:9pt;\">");
         text.append(value.toString());
         text.append("</p>");
 
    doc.setHtml(text);
    QAbstractTextDocumentLayout::PaintContext context;
    doc.setPageSize( option.rect.size());
    painter->setClipRect( option.rect );
    painter->translate(option.rect.x(), option.rect.y());
    doc.documentLayout()->draw(painter, context);
    painter->restore();
 }
}

class RichTextDelegate : public QItemDelegate
{
public:
    RichTextDelegate()
{
}
void paint( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const
{
    painter->save();
    QTextDocument doc;
    QVariant value = index.data(Qt::DisplayRole);
    if (value.isValid() && !value.isNull()) {
         QString text;
         text.append("<p  style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-family:'tahoma'; font-size:9pt;\">");
         text.append(value.toString());
         text.append("</p>");

    doc.setHtml(text);
    QAbstractTextDocumentLayout::PaintContext context;
    doc.setPageSize( option.rect.size());
    painter->setClipRect( option.rect );
    painter->translate(option.rect.x(), option.rect.y());
    doc.documentLayout()->draw(painter, context);
    painter->restore();
 }
}

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row height depend on text size dont work ..

how can i set row height depend on text(height) with that delegate ?

[solook]

i waiting....