QTextBlock size when using QPlainTextEdit

[dave]

Can I be sure when iterating over text blocks in QPlainTextEdit that each block is one line exactly? (between /n .. /n)?

[Lykurg]

As long as I know: yes.

[Lykurg]

After digging the sources I came to QTextCursor::insertText() which is used by setPlainText() and there it is:

if (ch == QLatin1Char('\n')
    || ch == QChar::ParagraphSeparator
    || ch == QTextBeginningOfFrame
    || ch == QTextEndOfFrame
    || ch == QLatin1Char('\r')) {
 
    if (!hasEditBlock) {
	hasEditBlock = true;
	d->priv->beginEditBlock();
    }
 
    if (blockEnd > blockStart)
	d->priv->insert(d->position, textStart + blockStart, blockEnd - blockStart, formatIdx);
 
    d->insertBlock(blockFmt, format); // Here we go: a new block is inserted
    blockStart = i + 1;
}

if (ch == QLatin1Char('\n')
    || ch == QChar::ParagraphSeparator
    || ch == QTextBeginningOfFrame
    || ch == QTextEndOfFrame
    || ch == QLatin1Char('\r')) {

    if (!hasEditBlock) {
	hasEditBlock = true;
	d->priv->beginEditBlock();
    }

    if (blockEnd > blockStart)
	d->priv->insert(d->position, textStart + blockStart, blockEnd - blockStart, formatIdx);

    d->insertBlock(blockFmt, format); // Here we go: a new block is inserted
    blockStart = i + 1;
}

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