Revision control
++ // Copyright (C) 2018 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++ #include <private/valueaxislabel_p.h>
++
++ #include <QtCore/qlocale.h>
++
++ QT_BEGIN_NAMESPACE
++
++ ValueAxisLabel::ValueAxisLabel(QGraphicsItem *parent) :
++ EditableAxisLabel(parent)
++ {
++
++ }
++
++ void ValueAxisLabel::finishEditing()
++ {
++ bool ok = false;
++ QLocale locale;
++ qreal oldValue = m_value;
++ qreal newValue = locale.toDouble(document()->toPlainText(), &ok);
++ if (ok && newValue != m_value) {
++ m_value = newValue;
++ emit valueChanged(oldValue, newValue);
++ } else {
++ document()->setHtml(m_htmlBeforeEdit);
++ }
++ }
++
++ void ValueAxisLabel::resetBeforeEditValue()
++ {
++ m_value = m_valueBeforeEdit;
++ }
++
++ qreal ValueAxisLabel::value() const
++ {
++ return m_value;
++ }
++
++ void ValueAxisLabel::setValue(const qreal &value)
++ {
++ setTextInteractionFlags(Qt::NoTextInteraction);
++ clearFocus();
++ m_value = value;
++ }
++
++ void ValueAxisLabel::setInitialEditValue()
++ {
++ m_valueBeforeEdit = m_value;
++ setHtml(QString::number(m_value));
++ }
++
++ void ValueAxisLabel::keyPressEvent(QKeyEvent *event)
++ {
++ if (isEditEndingKeyPress(event)) {
++ // prevent further event processing with a return
++ // because the focusOutEvent could have triggered
++ // a range change which might have invalidated the current label
++ return;
++ }
++
++ if (event->text().size() >= 1) {
++ QLocale locale;
++ if (!event->text().at(0).isDigit()
++ && event->text().at(0) != locale.decimalPoint()
++ && event->text().at(0) != locale.negativeSign()
++ && event->text().at(0) != locale.exponential()
++ && event->key() != Qt::Key_Backspace
++ && event->key() != Qt::Key_Delete) {
++ event->ignore();
++ return;
++ }
++ }
++ EditableAxisLabel::keyPressEvent(event);
++ }
++
++ QT_END_NAMESPACE
++
++ #include "moc_valueaxislabel_p.cpp"