QPoint(0,0) is not rendered with QStyledItemDelegate, bug or feature?

[Lykurg]

This happens, presumably, because QVariant::isNull() calls QPoint::isNull() which returns true for QPoint(0,0).

That's probably the reason. A quick work around is:

#include <QtGui>
#include <QDebug>
class PointDelegate : public QStyledItemDelegate
{
public:
    PointDelegate(QObject *parent = 0): QStyledItemDelegate(parent) {};
 
void paint( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index )
{
  if (QVariant::Point == index.data().type())
    return displayText(index.data, QLocale::system());
  else
    return QStyledItemDelegate::paint(painter, option, index);
}
 
    virtual QString displayText(const QVariant & value, const QLocale & locale ) const
    {
        Q_UNUSED(locale);
        qDebug() << "Delegate called with " << value;
        return QString("{%1,%2}").arg(value.toPoint().x()).arg(value.toPoint().y());
    }
};

#include <QtGui>
#include <QDebug>
class PointDelegate : public QStyledItemDelegate
{
public:
    PointDelegate(QObject *parent = 0): QStyledItemDelegate(parent) {};

void paint( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index )
{
  if (QVariant::Point == index.data().type())
    return displayText(index.data, QLocale::system());
  else
    return QStyledItemDelegate::paint(painter, option, index);
}

    virtual QString displayText(const QVariant & value, const QLocale & locale ) const
    {
        Q_UNUSED(locale);
        qDebug() << "Delegate called with " << value;
        return QString("{%1,%2}").arg(value.toPoint().x()).arg(value.toPoint().y());
    }
};

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