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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "propertyfield.h"
#include <QDebug>
PropertyField::PropertyField(QObject* subject, const QMetaProperty& prop, QWidget *parent) :
QLineEdit(parent), m_subject(subject), m_lastChangeTime(QTime::currentTime()), m_prop(prop)
{
setReadOnly(true);
if (prop.hasNotifySignal()) {
QMetaMethod signal = prop.notifySignal();
QMetaMethod updateSlot = metaObject()->method(metaObject()->indexOfSlot("propertyChanged()"));
connect(m_subject, signal, this, updateSlot);
}
propertyChanged();
}
QString PropertyField::valueToString(QVariant val)
{
QString text;
switch (val.type()) {
case QVariant::Double:
text = QString("%1").arg(val.toReal(), 0, 'f', 4);
break;
case QVariant::Size:
text = QString("%1 x %2").arg(val.toSize().width()).arg(val.toSize().height());
break;
case QVariant::SizeF:
text = QString("%1 x %2").arg(val.toSizeF().width()).arg(val.toSizeF().height());
break;
case QVariant::Rect: {
QRect rect = val.toRect();
text = QString("%1 x %2 %3%4 %5%6").arg(rect.width())
.arg(rect.height()).arg(rect.x() < 0 ? "" : "+").arg(rect.x())
.arg(rect.y() < 0 ? "" : "+").arg(rect.y());
} break;
default:
text = val.toString();
}
return text;
}
void PropertyField::propertyChanged()
{
if (m_prop.isReadable()) {
QVariant val = m_prop.read(m_subject);
QString text = valueToString(val);
QPalette modPalette = palette();
// If we are seeing a value for the first time,
// pretend it was that way for a while already.
if (m_lastText.isEmpty()) {
m_lastText = text;
m_lastTextShowing = text;
m_lastChangeTime = QTime::currentTime().addSecs(-5);
}
qDebug() << " " << QString::fromUtf8(m_prop.name()) << ":" << val;
// If the value has recently changed, show the change
if (text != m_lastText || m_lastChangeTime.elapsed() < 1000) {
setText(m_lastTextShowing + " -> " + text);
modPalette.setBrush(QPalette::Text, Qt::red);
m_lastChangeTime.start();
m_lastText = text;
}
// If the value hasn't changed recently, just show the current value
else {
setText(text);
m_lastText = text;
m_lastTextShowing = text;
modPalette.setBrush(QPalette::Text, Qt::black);
}
setPalette(modPalette);
}
}
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