Do you know how to use the QPlainTextDocumentLayout ?

[robertkun]

When I use a QGraphicsTextItem ,the cursor in it is too thin,
So I want to set the QPlainTextDocumentLayout to the document ,
But I don't konw how to use it ,the effect is too bad.

Thank you .

diagramtextitem::diagramtextitem(QGraphicsItem *parent, QGraphicsScene *scene)
    : QGraphicsTextItem(parent, scene)
{
 
    QFont newFont = font();
    newFont.setPointSize(24);
    setFont(newFont);
    setDefaultTextColor(Qt::blue);
 
    QTextDocument *curDocument = new QTextDocument();
 
    QPlainTextDocumentLayout *plainLayout = new QPlainTextDocumentLayout(curDocument);
    curDocument->setDocumentLayout(plainLayout);
    setDocument(curDocument);
 
    setFlag(QGraphicsItem::ItemIsMovable);
    setFlag(QGraphicsItem::ItemIsSelectable);
}

diagramtextitem::diagramtextitem(QGraphicsItem *parent, QGraphicsScene *scene)
    : QGraphicsTextItem(parent, scene)
{

    QFont newFont = font();
    newFont.setPointSize(24);
    setFont(newFont);
    setDefaultTextColor(Qt::blue);

    QTextDocument *curDocument = new QTextDocument();

    QPlainTextDocumentLayout *plainLayout = new QPlainTextDocumentLayout(curDocument);
    curDocument->setDocumentLayout(plainLayout);
    setDocument(curDocument);

    setFlag(QGraphicsItem::ItemIsMovable);
    setFlag(QGraphicsItem::ItemIsSelectable);
}

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