qtbase-opensource-src/tests/manual/qscreen/propertyfield.h

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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef PROPERTYFIELD_H
#define PROPERTYFIELD_H
#include <QLineEdit>
#include <QMetaProperty>
#include <QTime>
/*!
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 = 0);
signals:
public slots:
void propertyChanged();
protected:
QString valueToString(QVariant val);
private:
QObject* m_subject;
QString m_lastText;
QString m_lastTextShowing;
QTime m_lastChangeTime;
const QMetaProperty m_prop;
QBrush m_defaultBrush;
};
#endif // PROPERTYFIELD_H