mirror of
https://github.com/crystalidea/qt6windows7.git
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80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
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// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include "propertyfield.h"
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#include <QDebug>
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PropertyField::PropertyField(QObject* subject, const QMetaProperty& prop, QWidget *parent)
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: QLineEdit(parent), m_subject(subject), m_lastChangeTime(), m_prop(prop)
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, m_defaultBrush(palette().brush(QPalette::Active, QPalette::Text))
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{
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setReadOnly(true);
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if (prop.hasNotifySignal()) {
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QMetaMethod signal = prop.notifySignal();
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QMetaMethod updateSlot = metaObject()->method(metaObject()->indexOfSlot("propertyChanged()"));
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connect(m_subject, signal, this, updateSlot);
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}
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propertyChanged();
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}
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QString PropertyField::valueToString(QVariant val)
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{
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if (m_prop.isEnumType())
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return QString::fromUtf8(m_prop.enumerator().valueToKey(val.toInt()));
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QString text;
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switch (val.type()) {
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case QVariant::Double:
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text = QString("%1").arg(val.toReal(), 0, 'f', 4);
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break;
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case QVariant::Size:
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text = QString("%1 x %2").arg(val.toSize().width()).arg(val.toSize().height());
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break;
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case QVariant::SizeF:
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text = QString("%1 x %2").arg(val.toSizeF().width()).arg(val.toSizeF().height());
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break;
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case QVariant::Rect: {
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QRect rect = val.toRect();
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text = QString("%1 x %2 %3%4 %5%6").arg(rect.width())
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.arg(rect.height()).arg(rect.x() < 0 ? "" : "+").arg(rect.x())
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.arg(rect.y() < 0 ? "" : "+").arg(rect.y());
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} break;
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default:
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text = val.toString();
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}
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return text;
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}
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void PropertyField::propertyChanged()
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{
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if (m_prop.isReadable()) {
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QVariant val = m_prop.read(m_subject);
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QString text = valueToString(val);
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QPalette modPalette = palette();
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// If we are seeing a value for the first time,
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// pretend it was that way for a while already.
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if (m_lastText.isEmpty()) {
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m_lastText = text;
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m_lastTextShowing = text;
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}
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qDebug() << " " << QString::fromUtf8(m_prop.name()) << ':' << val;
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// If the value has recently changed, show the change
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if (text != m_lastText || m_lastChangeTime.elapsed() < 1000) {
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setText(m_lastTextShowing + " -> " + text);
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modPalette.setBrush(QPalette::Text, Qt::red);
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m_lastChangeTime.start();
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m_lastText = text;
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}
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// If the value hasn't changed recently, just show the current value
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else {
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setText(text);
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m_lastText = text;
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m_lastTextShowing = text;
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modPalette.setBrush(QPalette::Text, m_defaultBrush);
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}
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setPalette(modPalette);
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}
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}
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