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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/
#include "persistentsettings.h"
#include <QtCore/QDebug>
#include <QtCore/QFile>
#include <QtCore/QVariant>
#include <QtXml/QDomDocument>
#include <QtXml/QDomCDATASection>
#include <QtXml/QDomElement>
using namespace ProjectExplorer;
PersistentSettingsReader::PersistentSettingsReader()
{
}
QVariant PersistentSettingsReader::restoreValue(const QString & variable) const
{
if (m_valueMap.contains(variable))
return m_valueMap.value(variable);
return QVariant();
}
QVariantMap PersistentSettingsReader::restoreValues() const
{
return m_valueMap;
}
bool PersistentSettingsReader::load(const QString & fileName)
{
m_valueMap.clear();
QFile file(fileName);
if (!file.open(QIODevice::ReadOnly))
return false;
QDomDocument doc;
if (!doc.setContent(&file))
return false;
QDomElement root = doc.documentElement();
if (root.nodeName() != QLatin1String("qtcreator"))
return false;
QDomElement child = root.firstChildElement();
for (; !child.isNull(); child = child.nextSiblingElement()) {
if (child.nodeName() == QLatin1String("data"))
readValues(child);
}
file.close();
return true;
}
QVariant PersistentSettingsReader::readValue(const QDomElement &valElement) const
{
QString name = valElement.nodeName();
QString type = valElement.attribute(QLatin1String("type"));
QVariant v;
if (name == QLatin1String("value")) {
v.setValue(valElement.text());
v.convert(QVariant::nameToType(type.toLatin1().data()));
} else if (name == QLatin1String("valuelist")) {
QDomElement child = valElement.firstChildElement();
QList<QVariant> valList;
for (; !child.isNull(); child = child.nextSiblingElement()) {
valList << readValue(child);
}
v.setValue(valList);
} else if (name == QLatin1String("valuemap")) {
QDomElement child = valElement.firstChildElement();
QMap<QString, QVariant> valMap;
for (; !child.isNull(); child = child.nextSiblingElement()) {
QString key = child.attribute(QLatin1String("key"));
valMap.insert(key, readValue(child));
}
v.setValue(valMap);
}
return v;
}
void PersistentSettingsReader::readValues(const QDomElement &data)
{
QString variable;
QVariant v;
QDomElement child = data.firstChildElement();
for (; !child.isNull(); child = child.nextSiblingElement()) {
if (child.nodeName() == QLatin1String("variable")) {
variable = child.text();
} else {
v = readValue(child);
}
}
m_valueMap.insert(variable, v);
}
///
/// PersistentSettingsWriter
///
PersistentSettingsWriter::PersistentSettingsWriter()
{
}
void PersistentSettingsWriter::writeValue(QDomElement &ps, const QVariant &variant)
{
if (variant.type() == QVariant::StringList || variant.type() == QVariant::List) {
QDomElement values = ps.ownerDocument().createElement("valuelist");
values.setAttribute("type", QVariant::typeToName(QVariant::List));
QList<QVariant> varList = variant.toList();
foreach (const QVariant &var, varList) {
writeValue(values, var);
}
ps.appendChild(values);
} else if (variant.type() == QVariant::Map) {
QDomElement values = ps.ownerDocument().createElement("valuemap");
values.setAttribute("type", QVariant::typeToName(QVariant::Map));
QMap<QString, QVariant> varMap = variant.toMap();
QMap<QString, QVariant>::const_iterator i = varMap.constBegin();
while (i != varMap.constEnd()) {
writeValue(values, i.value());
values.lastChild().toElement().
setAttribute(QLatin1String("key"), i.key());
++i;
}
ps.appendChild(values);
} else {
QDomElement value = ps.ownerDocument().createElement("value");
ps.appendChild(value);
QDomText valueText = ps.ownerDocument().createTextNode(variant.toString());
value.appendChild(valueText);
value.setAttribute("type", variant.typeName());
ps.appendChild(value);
}
}
void PersistentSettingsWriter::saveValue(const QString & variable, const QVariant &value)
{
m_valueMap[variable] = value;
}
bool PersistentSettingsWriter::save(const QString & fileName, const QString & docType)
{
QFile file(fileName);
if (!file.open(QIODevice::WriteOnly))
return false;
QDomDocument doc(docType);
QDomElement root = doc.createElement("qtcreator");
doc.appendChild(root);
QMap<QString, QVariant>::const_iterator i = m_valueMap.constBegin();
while (i != m_valueMap.constEnd()) {
QDomElement ps = doc.createElement("data");
root.appendChild(ps);
QDomElement variable = doc.createElement("variable");
ps.appendChild(variable);
QDomText variableText = doc.createTextNode(i.key());
variable.appendChild(variableText);
writeValue(ps, i.value());
++i;
}
file.write(doc.toByteArray());
file.close();
return true;
}
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