Adding HTML code into QTableWidget cells

[a5633Oy]

Hi,
I have a QTableWidget of 4 columns and many rows.
The contents of cells is loaded form a XML file that contains HTML code.
To do so, i wrote a delegate class :

class HtmlDelegate : public QStyledItemDelegate
{
protected:
    void paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const;
    QSize sizeHint ( const QStyleOptionViewItem & option, const QModelIndex & index ) const;
};

class HtmlDelegate : public QStyledItemDelegate
{
protected:
    void paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const;
    QSize sizeHint ( const QStyleOptionViewItem & option, const QModelIndex & index ) const;
};

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void HtmlDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    QStyleOptionViewItem optionV4 = option;
    initStyleOption(&optionV4, index);
 
    QStyle *style = optionV4.widget? optionV4.widget->style() : QApplication::style();
 
    QTextDocument doc;
    doc.setHtml(optionV4.text);
 
    QAbstractTextDocumentLayout::PaintContext ctx;
 
    QRect textRect = style->subElementRect(QStyle::SE_ItemViewItemText, &optionV4);
    painter->save();
    painter->translate(textRect.topLeft());
    painter->setClipRect(textRect.translated(-textRect.topLeft()));
 
    doc.documentLayout()->draw(painter, ctx);
    painter->restore();
}

void HtmlDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    QStyleOptionViewItem optionV4 = option;
    initStyleOption(&optionV4, index);

    QStyle *style = optionV4.widget? optionV4.widget->style() : QApplication::style();

    QTextDocument doc;
    doc.setHtml(optionV4.text);

    QAbstractTextDocumentLayout::PaintContext ctx;

    QRect textRect = style->subElementRect(QStyle::SE_ItemViewItemText, &optionV4);
    painter->save();
    painter->translate(textRect.topLeft());
    painter->setClipRect(textRect.translated(-textRect.topLeft()));

    doc.documentLayout()->draw(painter, ctx);
    painter->restore();
}

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QSize HtmlDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    QStyleOptionViewItem optionV4 = option;
    initStyleOption(&optionV4, index);
 
    QTextDocument doc;
    doc.setHtml(optionV4.text);
    doc.setTextWidth(optionV4.rect.width());
    return QSize(doc.idealWidth(), doc.size().height());
}

QSize HtmlDelegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    QStyleOptionViewItem optionV4 = option;
    initStyleOption(&optionV4, index);

    QTextDocument doc;
    doc.setHtml(optionV4.text);
    doc.setTextWidth(optionV4.rect.width());
    return QSize(doc.idealWidth(), doc.size().height());
}

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It works well, but the last column which is normaly stretched when i use text plain without the delegate fonction

qtbl->horizontalHeader()->setSectionResizeMode(3, QHeaderView::Stretch);

qtbl->horizontalHeader()->setSectionResizeMode(3, QHeaderView::Stretch);

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lose the stretched parameter and the cell's height doesn't fit the multiline content.

Thanks for you help.