protect some text in a QTextEdit

[wysota]

True. However you get a QTextFormat as the argument to intrinsicSize(), haven't you noticed?

[GrahamLabdon]

I have made some progress with he following implementation

QSizeF SvgTextObject::intrinsicSize(QTextDocument * doc, int posInDocument,
                                    const QTextFormat &format)
{
    QSize size;
 
    QString str = qVariantValue<QString>(format.property(Window::SvgData));
 
    QTextCursor cursor(doc);
    QTextCharFormat fmt = cursor.charFormat();
 
    QFont font = fmt.font();
    QFontMetrics fm(font);
    QRect rect = fm.boundingRect(str);
 
    size.setHeight(rect.height());
    size.setWidth(rect.width());
    return QSizeF(size);
}

QSizeF SvgTextObject::intrinsicSize(QTextDocument * doc, int posInDocument,
                                    const QTextFormat &format)
{
    QSize size;
    
    QString str = qVariantValue<QString>(format.property(Window::SvgData));

    QTextCursor cursor(doc);
    QTextCharFormat fmt = cursor.charFormat();

    QFont font = fmt.font();
    QFontMetrics fm(font);
    QRect rect = fm.boundingRect(str);

    size.setHeight(rect.height());
    size.setWidth(rect.width());
    return QSizeF(size);
}

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void SvgTextObject::drawObject(QPainter *painter, const QRectF &rect,
                               QTextDocument * /*doc*/, int /*posInDocument*/,
                               const QTextFormat &format)
{
    const QString str = qVariantValue<QString>(format.property(Window::SvgData));
    QTextCursor cursor(doc);
    QTextCharFormat fmt = cursor.charFormat();
 
    QFont font = fmt.font();
    painter->setFont(font);
    painter->drawText(rect,str);
}

void SvgTextObject::drawObject(QPainter *painter, const QRectF &rect,
                               QTextDocument * /*doc*/, int /*posInDocument*/,
                               const QTextFormat &format)
{
    const QString str = qVariantValue<QString>(format.property(Window::SvgData));
    QTextCursor cursor(doc);
    QTextCharFormat fmt = cursor.charFormat();

    QFont font = fmt.font();
    painter->setFont(font);
    painter->drawText(rect,str);
}

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Is this the correct way or is there a better way?

Thanks for your help

[wysota]

If it works for you, it is fine with me.

[GrahamLabdon]

Thanks for your assistance
But I'm not sure that its going to help me!
I need to be able to save the document but when I do so the custom object is not saved
Need some more research
Any hints on this

Thanks

[wysota]

How are you "saving" it?

[GrahamLabdon]

I tried converting the contents to html and saving that
I also tried saving as an odt document

[wysota]

HTML doesn't allow any "protected text" so there is no way you are going to succeed. ODT writer only allows simple things, so no joy here too.

[GrahamLabdon]

Is there anything that might work?

[wysota]

You can implement your own writer and your own reader if you need to recreate the text document from a file.

[GrahamLabdon]

I thought that's what you'd say!
Thanks for all your help