I'm struggling with block/line removal from QTextEdit
. Code below should(?) work but it ends up in infinite loop for some unknown to me reason. I have a suspicion that next()
and previous()
are not welcome if QTextDocument
is being edited.
QTextBlock block = document()->begin();
while (block.isValid()) {
if (to_do_or_not_to_do(block)) {
QTextCursor cursor(block);
cursor.select(QTextCursor::BlockUnderCursor);
cursor.removeSelectedText();
}
block = block.next();
}
Iterating using QTextDocument::findBlockByNumber()
and deleting block in the same way as above didn't worked either.
I would appreciate if someone could point me into right direction on how to iterate trough all the blocks and remove them if needed.
P.S.
In my particular case one block = one line.
Qt 4.6.2, Ubuntu 10.04 x64
Changing it a little works for me:
while (block.isValid()) {
if (to_do_or_not_to_do(block)) {
QTextCursor cursor(block);
block = block.next();
cursor.select(QTextCursor::BlockUnderCursor);
cursor.removeSelectedText();
}
else
block = block.next();
}
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