htmldelegate.cpp

#include "htmldelegate.h"
#include <QStyleOptionViewItemV4>
#include <QTextDocument>

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

    painter->save();

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

    /* Call this to get the focus rect and selection background. */
    options.text = "";
    options.widget->style()->drawControl(QStyle::CE_ItemViewItem, &options, painter, options.widget);

    /* Draw using our rich text document. */
    painter->translate(options.rect.left(), options.rect.top());
    QRect clip(0, 0, options.rect.width(), options.rect.height());
    doc.drawContents(painter, clip);

    painter->restore();
}

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

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