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/*
* Copyright 2008-2009 Ben Boeckel <MathStuf@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// Header include
#include "Config.h"
// Qt includes
#include <QtCore/QSet>
using namespace Sigscript;
Config::Config(Config* parent) :
QObject(parent),
m_parent(parent)
{
}
bool Config::addValue(const QString& name, const QVariant& value)
{
if (!hasValue(name))
return setValue(name, value);
return false;
}
bool Config::setValue(const QString& name, const QVariant& value)
{
if (hasValue(name) && (options(name) & ReadOnly))
return false;
if (!m_values.contains(name))
emit(valueAdded(name, value));
if (options(name) & Deleted)
unsetOptions(name, Deleted);
m_values.setValue(name, value);
emit(valueChanged(name, value));
return true;
}
bool Config::removeValue(const QString& name, const bool shadow)
{
if (shadow)
setOptions(name, Deleted);
else if (m_values.contains(name))
m_values.unsetValue(name);
else
return false;
emit(valueRemoved(name));
return true;
}
QVariant Config::value(const QString& name, const bool recursive) const
{
if (m_values.contains(name))
{
if (options(name) & (Deleted | Hidden))
return QVariant();
return m_values.value(name);
}
if (recursive && m_parent)
return m_parent->value(name, true);
return QVariant();
}
bool Config::hasValue(const QString& name, const bool recursive) const
{
if (m_values.contains(name))
return !(options(name) & (Deleted | Hidden));
if (recursive && m_parent)
return m_parent->hasValue(name, true);
return false;
}
QStringList Config::values(const bool recursive) const
{
QStringList values = m_values.keys();
if (recursive && m_parent)
values += m_parent->values(true);
const QStringList keys = m_values.keys();
foreach (const QString& key, keys)
{
if (options(key) & (Deleted | Hidden))
values.removeAll(key);
}
return values.toSet().toList();
}
bool Config::setOptions(const QString& name, const ConfigOptions newOptions)
{
if ((~options(name) & newOptions) || (overrides(name) & newOptions) || addValue(name, QVariant()))
{
m_values.setOptions(name, newOptions);
emit(optionsChanged(name, options(name)));
return true;
}
return false;
}
bool Config::unsetOptions(const QString& name, const ConfigOptions oldOptions)
{
if ((options(name) & oldOptions) || (overrides(name) & oldOptions))
{
m_values.unsetOptions(name, oldOptions);
emit(optionsChanged(name, options(name)));
return true;
}
return false;
}
ConfigOptions Config::options(const QString& name, const bool recursive) const
{
ConfigOptions options = 0;
if (m_values.contains(name))
options = m_values.options(name);
if (recursive && m_parent)
options |= m_parent->options(name, recursive) & ~overrides(name);
return options;
}
bool Config::setOverrides(const QString& name, const ConfigOptions newOverrides)
{
if ((~overrides(name) & newOverrides) || addValue(name, QVariant()))
{
m_values.setOptions(name, options(name) & newOverrides);
m_values.setOverrides(name, newOverrides);
emit(overridesChanged(name, overrides(name)));
return true;
}
return false;
}
bool Config::unsetOverrides(const QString& name, const ConfigOptions oldOverrides)
{
if (overrides(name) & oldOverrides)
{
m_values.unsetOverrides(name, oldOverrides);
emit(overridesChanged(name, overrides(name)));
return true;
}
return false;
}
ConfigOptions Config::overrides(const QString& name) const
{
if (m_values.contains(name))
return m_values.overrides(name);
return 0;
}
void Config::clean()
{
QStringList values = m_values.keys();
foreach (const QString& value, values)
{
unsetOptions(value, Hidden);
if (options(value) & Temporary)
removeValue(value, false);
}
}
void Config::writeBack()
{
}
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