Problem with QTextFragment

[Zygyzy]

Hi,

i took a QTextEdit and a QSyntaxHighlighter to change the font color of a part of the textedit's first line, for example:

redblue

Now I would like to get the textline back from the textedit, but it's very important to keep the difference between both text fragments ("red" and "blue"). The Qt-manual says I have to do it this way:

QTextBlock currentBlock = mytextEdit->document()->findBlockByLineNumber(0); //first line
 
QTextBlock::iterator it;
for (it = doc->begin().begin(); !(it.atEnd()); ++it)
{
    QTextFragment currentFragment = it.fragment();
    if (currentFragment.isValid())
    {
        QTextCharFormat f = currentFragment.charFormat();  //font of fragment
        QString txt = currentFragment.text();   //text of fragment
    }
}

QTextBlock currentBlock = mytextEdit->document()->findBlockByLineNumber(0); //first line

QTextBlock::iterator it;
for (it = doc->begin().begin(); !(it.atEnd()); ++it)
{
    QTextFragment currentFragment = it.fragment();
    if (currentFragment.isValid())
    {
        QTextCharFormat f = currentFragment.charFormat();  //font of fragment
        QString txt = currentFragment.text();   //text of fragment
    }
}

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Usually I should retrieve two QTextFragments, one for "red" and another for "blue", both automatically seperated by their different fonts (look here). But I only retrieve one QTextFragment conatining the whole string "redblue". Also the correspondent QTextCharFormat seems to be empty.

Does anyone know a solution? I use Qt 4.7.4 + VS2010.


With kind regards,
Zygyzy