Unsolved Specific initialization of QTextEdit

[Roy44]

I I would like to set a text with informations in a QTextEdit.
Theses informations are specific and can't be stored in html.

I already implemented the text creation: I set properties into QTextCharFormat
(selected by text cursor).
Now I want do the same thing to initialize my text edit.
I would make somthing like that:

QTextDocument* pDoc = pEditor->document();
    if(pDoc)
    {
        const int iChunkCount = qlChunk.size();
        int iChunkIndex = 0;

        QTextBlock blck = pDoc->begin();
        while(blck.isValid())// boucle par ligne
        {
            for(QTextBlock::iterator it = blck.begin(); !(it.atEnd()); ++it)// boucle par morceau de texte
            {
                QTextFragment currentFragment = it.fragment();
                if (currentFragment.isValid() && (iChunkIndex < iChunkCount))
                {
                    QTextCharFormat fragmentCharFormat = currentFragment.charFormat();
                    if(qlChunk[iChunkIndex].m_vHeight.isValid())
                    {
                        fragmentCharFormat.setProperty(RTF_TEXT_SIZE_PROP_ID, qlChunk[iChunkIndex].m_vHeight.toDouble());
                    }

                    if(qlChunk[iChunkIndex].m_vAngle.isValid())
                    {
                        fragmentCharFormat.setProperty(RTF_TEXT_ANGLE_PROP_ID, qlChunk[iChunkIndex].m_vAngle.toInt());
                    }

                    if(qlChunk[iChunkIndex].m_color.isValid())
                    {
                        fragmentCharFormat.setProperty(RTF_TEXT_COLOR_PROP_ID, qlChunk[iChunkIndex].m_color);
                    }
                    iChunkIndex++;
                }
            }
            blck = blck.next();
        }
    }

I hope, it's clear.
Sorry for my bad english.
Thanks