RichTextDelegate.cpp

#include "RichTextDelegate.hpp"

#include <QPainter>
#include <QTextDocument>

RichTextDelegate::RichTextDelegate(QObject *parent)
    : QStyledItemDelegate(parent)
{
    m_pFormatter = new QTextDocument(this);
}

RichTextDelegate::~RichTextDelegate()
{

}

void RichTextDelegate::paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const
{
    if (option.state & QStyle::State_Selected)
    {
        painter->fillRect(option.rect, option.palette.highlight());
    }

    painter->save();

    int alignemtn=index.data(Qt::TextAlignmentRole).toInt();

    m_pFormatter->setHtml(index.data().toString());
    QFont f(index.data(Qt::FontRole).value<QFont>());

    m_pFormatter->setDefaultFont(f);
    QSizeF actualSize (m_pFormatter->size());

    if ((alignemtn & Qt::AlignVCenter) != 0)
    {
        painter->translate(0,(option.rect.height()-actualSize.height())/2);
    } else if ((alignemtn & Qt::AlignBottom) != 0)
    {
        painter->translate(0,(option.rect.height()-actualSize.height()));
    }
    if ((alignemtn & Qt::AlignRight) !=0)
    {
        painter->translate(option.rect.width()-actualSize.width(),0);
    } else if ((alignemtn & Qt::AlignHCenter) !=0)
    {
        painter->translate((option.rect.width()-actualSize.width())/2,0);
    }


    QPixmap pixmap(option.rect.size());
    pixmap.fill(Qt::transparent);
    QPainter p(&pixmap);

    m_pFormatter->drawContents(&p);

    painter->drawPixmap(option.rect, pixmap);

    painter->restore();
}