qt6windows7/tests/manual/qscreen/propertyfield.h

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2023-10-30 06:33:08 +08:00
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#ifndef PROPERTYFIELD_H
#define PROPERTYFIELD_H
#include <QLineEdit>
#include <QMetaProperty>
#include <QElapsedTimer>
/*!
A QLineEdit for viewing the text form of a property on an object.
Automatically stays up-to-date when the property changes.
(This is rather like a QML TextField bound to a property.)
*/
class PropertyField : public QLineEdit
{
Q_OBJECT
public:
explicit PropertyField(QObject* subject, const QMetaProperty& prop, QWidget *parent = nullptr);
signals:
public slots:
void propertyChanged();
protected:
QString valueToString(QVariant val);
private:
QObject* m_subject;
QString m_lastText;
QString m_lastTextShowing;
QElapsedTimer m_lastChangeTime;
const QMetaProperty m_prop;
QBrush m_defaultBrush;
};
#endif // PROPERTYFIELD_H