qvalidatedlineedit.cpp

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// Copyright (c) 2011-2016 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#include <qt/qvalidatedlineedit.h>
 
#include <qt/bitcoinaddressvalidator.h>
#include <qt/guiconstants.h>
 
QValidatedLineEdit::QValidatedLineEdit(QWidget *parent)
    : QLineEdit(parent), valid(true), checkValidator(nullptr) {
    connect(this, &QValidatedLineEdit::textChanged, this,
            &QValidatedLineEdit::markValid);
}
 
void QValidatedLineEdit::setValid(bool _valid) {
    if (_valid == this->valid) {
        return;
    }
 
    if (_valid) {
        setStyleSheet("");
    } else {
        setStyleSheet(STYLE_INVALID);
    }
    this->valid = _valid;
 
    Q_EMIT validationDidChange(this);
}
 
void QValidatedLineEdit::focusInEvent(QFocusEvent *evt) {
    // Clear invalid flag on focus
    setValid(true);
 
    QLineEdit::focusInEvent(evt);
}
 
void QValidatedLineEdit::focusOutEvent(QFocusEvent *evt) {
    checkValidity();
 
    QLineEdit::focusOutEvent(evt);
}
 
void QValidatedLineEdit::markValid() {
    // As long as a user is typing ensure we display state as valid
    setValid(true);
}
 
void QValidatedLineEdit::clear() {
    setValid(true);
    QLineEdit::clear();
}
 
void QValidatedLineEdit::setEnabled(bool enabled) {
    if (!enabled) {
        // A disabled QValidatedLineEdit should be marked valid
        setValid(true);
    } else {
        // Recheck validity when QValidatedLineEdit gets enabled
        checkValidity();
    }
 
    QLineEdit::setEnabled(enabled);
}
 
void QValidatedLineEdit::checkValidity() {
    if (text().isEmpty()) {
        setValid(true);
    } else if (hasAcceptableInput()) {
        setValid(true);
 
        // Check contents on focus out
        if (checkValidator) {
            QString address = text();
            int pos = 0;
            if (checkValidator->validate(address, pos) ==
                QValidator::Acceptable) {
                setValid(true);
            } else {
                setValid(false);
            }
        }
    } else {
        setValid(false);
    }
}
 
void QValidatedLineEdit::setCheckValidator(const QValidator *v) {
    checkValidator = v;
}
 
bool QValidatedLineEdit::isValid() {
    // use checkValidator in case the QValidatedLineEdit is disabled
    if (checkValidator) {
        QString address = text();
        int pos = 0;
        if (checkValidator->validate(address, pos) == QValidator::Acceptable) {
            return true;
        }
    }
 
    return valid;
}