How to serialize and deserialize rich text in QTextEdit?

Question

Say I have a structure like this:

class AAA
{
    BBB      bb_member;
    double   dbl_member;
    ....................
}

class BBB
{
    int             in         


        

Answer 1

Here is what I would do :

First (as roop said), you shouldn't store the QTextEdit widget itself, but the underlying text document (QTextDocument). You can get it from the QTextEdit widget with QTextEdit::document().

QTextDocument* pTextDoc = m_textEdit->document();

Then, I would get the html string from this document and from this string, get a QByteArray :

QString MyText = pTextDoc->toHtml();
QByteArray TextAsByteArray = MyText.toUtf8();

Once you have a QByteArray object containing your document, you can use the << and >> operators.

For reading back the QByteArray, store it into a QString(see QString::fromUtf8()), and use QTextDocument::setHtml() to display the content into the QTextEdit widget.

UPDATE

Following jpalecek comment, I'm overcomplicating the solution. Once you have a QString containing your text document as HTML, you can use QString::operator<<() and QString::operator>>() without using a QByteArray.