Qt Override class properties on control deserealization
Im trying to make a simple control serealization/deserialization, and i
came up with the following code (.cpp)
#include "serializer.h"
#include "QMetaProperty"
#include "QTextStream"
#include "QDebug"
Serializer::Serializer(QObject *parent) :
QObject(parent)
{
}
bool Serializer::Serialize(QObject *object,QString name) {
QDomDocument doc;
QDomElement root = doc.createElement(object->metaObject()->className());
doc.appendChild(root);
for(int i = 0; i < object->metaObject()->propertyCount(); i++)
{
QMetaProperty prop = object->metaObject()->property(i);
QString propName = prop.name();
if(propName == "objectName")
continue;
QDomElement el = doc.createElement(propName);
QVariant value = object->property(propName.toLatin1().data());
QDomText txt;
if (object->metaObject()->property(i).typeName() != "QByteArray") {
txt = doc.createTextNode( value.toString() );
} else {
txt = doc.createTextNode(object->metaObject()->property(i).typeName());
}
el.appendChild(txt);
root.appendChild(el);
}
QFile f(name);
f.open(QIODevice::ReadWrite | QIODevice::Text);
QTextStream stream(&f);
doc.save(stream, 2);
f.close();
return true;
}
bool Serializer::_deserializeObject(QIODevice* input, QObject* object)
{
QDomDocument doc;
if (!doc.setContent(input))
return false;
QDomElement root = doc.documentElement();
qDebug() << object->metaObject()->propertyCount();
for(int i = 0; i < object->metaObject()->propertyCount(); i++)
{
QMetaProperty prop = object->metaObject()->property(i);
QString propName = prop.name();
if(propName == "objectName")
continue;
QDomNodeList nodeList = root.elementsByTagName(propName);
if(nodeList.length() < 1)
continue;
QDomNode node = nodeList.at(0);
QVariant value = object->property(propName.toLatin1().data());
QString v = node.toElement().text();
object->setProperty(propName.toLatin1().data(), QVariant(v));
}
return true;
}
.h file :
#ifndef SERIALIZER_H
#define SERIALIZER_H
#include <QObject>
#include <QDomDocument>
#include <QFile>
class Serializer : public QObject
{
Q_OBJECT
public:
explicit Serializer(QObject *parent = 0);
bool Serialize(QObject *object, QString name);
template<class T>
T* deserialize(QIODevice *input)
{
T* object = new T();
if(_deserializeObject(input, object))
return object;
delete object;
return NULL;
}
bool _deserializeObject(QIODevice* input, QObject* object);
signals:
public slots:
};
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