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/*
* Copyright (C) 2014 Christian Mollekopf <chrigi_1@fastmail.fm>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) version 3, or any
* later version accepted by the membership of KDE e.V. (or its
* successor approved by the membership of KDE e.V.), which shall
* act as a proxy defined in Section 6 of version 3 of the license.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <QVariant>
#include <QByteArray>
#include <QHash>
#include <QDebug>
namespace Sink {
namespace ApplicationDomain {
/**
* This class has to be implemented by resources and can be used as generic interface to access the buffer properties
*/
class BufferAdaptor
{
public:
virtual ~BufferAdaptor()
{
}
virtual QVariant getProperty(const QByteArray &key) const
{
qFatal("Tried to get property: " + key);
return QVariant();
}
virtual void setProperty(const QByteArray &key, const QVariant &value)
{
qFatal("Tried to get property: " + key);
}
virtual QList<QByteArray> availableProperties() const
{
return QList<QByteArray>();
}
};
class MemoryBufferAdaptor : public BufferAdaptor
{
public:
MemoryBufferAdaptor() : BufferAdaptor()
{
}
virtual ~MemoryBufferAdaptor()
{
}
virtual QVariant getProperty(const QByteArray &key) const
{
if (!mValues.contains(key)) {
qWarning() << "Tried to read value that is not available; Did you forget to call Query::request? Property: " << key;
return QVariant{};
}
return mValues.value(key);
}
virtual void setProperty(const QByteArray &key, const QVariant &value)
{
if (value != mValues.value(key)) {
mChanges << key;
}
mValues.insert(key, value);
}
virtual QByteArrayList availableProperties() const
{
return mValues.keys();
}
void resetChangedProperties()
{
mChanges.clear();
}
QList<QByteArray> changedProperties() const
{
return mChanges;
}
private:
QHash<QByteArray, QVariant> mValues;
QList<QByteArray> mChanges;
};
}
}
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