QTextEdit maxlength implement

QTextEdit에는 setMaxLength 함수가 없다

입력 글자수를 제한하기 위해서 다음과 같이 SLOT을 Connect한다

//member variable

QString tempMemo_ = {};

QTextEdit* memoEdit = dialog_->findChild<QTextEdit*>(toString(ControlID::editMemo));

if (memoEdit->toPlainText().length() > 256)//set maxlength 256

{

disconnect(memoEdit, SIGNAL(textChanged()), this, SLOT(slotValueChanged_memo())));

QTextCursor currentCursor = memoEdit->textCursor();

int pos = currentCursor.position();

memoEdit->setPlainText(tempMemo_);

currentCursor.setPosition(pos - 1, QTextCursor::MoveMode::MoveAnchor);

memoEdit->setTextCursor(currentCursor);

connect(memoEdit, SIGNAL(textChanged()), this, SLOT(slotValueChanged_memo())));

}

else

{

//keep text at last input

tempMemo_ = memoEdit->toPlainText();

}