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/* Copyright 2013 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "include/settingsobject.h"
#include "include/setting.h"
#include <QVariant>
SettingsObject::SettingsObject(QObject *parent) :
QObject(parent)
{
}
bool SettingsObject::registerSetting(Setting *setting)
{
// Check if setting is null or we already have a setting with the same ID.
if (!setting)
{
qDebug(QString("Failed to register setting. Setting is null.").
arg(setting->id()).toUtf8());
return false; // Fail
}
if (contains(setting->id()))
{
qDebug(QString("Failed to register setting %1. ID already exists.").
arg(setting->id()).toUtf8());
return false; // Fail
}
m_settings.insert(setting->id(), setting);
setting->setParent(this); // Take ownership.
// Connect signals.
connectSignals(*setting);
qDebug(QString("Registered setting %1.").arg(setting->id()).toUtf8());
return true;
}
void SettingsObject::unregisterSetting(Setting *setting)
{
if (!setting || !m_settings.contains(setting->id()))
return; // We can't unregister something that's not registered.
m_settings.remove(setting->id());
// Disconnect signals.
disconnectSignals(*setting);
setting->setParent(NULL); // Drop ownership.
}
Setting *SettingsObject::getSetting(const QString &id) const
{
// Make sure there is a setting with the given ID.
if (!m_settings.contains(id))
return NULL;
return m_settings[id];
}
QVariant SettingsObject::get(const QString &id) const
{
Setting *setting = getSetting(id);
return (setting ? setting->get() : QVariant());
}
bool SettingsObject::set(const QString &id, QVariant value)
{
Setting *setting = getSetting(id);
if (!setting)
{
qDebug(QString("Error changing setting %1. Setting doesn't exist.").
arg(id).toUtf8());
return false;
}
else
{
setting->set(value);
return true;
}
}
QList<Setting *> SettingsObject::getSettings()
{
return m_settings.values();
}
bool SettingsObject::contains(const QString &id)
{
return m_settings.contains(id);
}
void SettingsObject::connectSignals(const Setting &setting)
{
connect(&setting, SIGNAL(settingChanged(const Setting &, QVariant)),
SLOT(changeSetting(const Setting &, QVariant)));
connect(&setting, SIGNAL(settingChanged(const Setting &, QVariant)),
SIGNAL(settingChanged(const Setting &, QVariant)));
}
void SettingsObject::disconnectSignals(const Setting &setting)
{
setting.disconnect(SIGNAL(settingChanged(const Setting &, QVariant)),
this, SLOT(changeSetting(const Setting &, QVariant)));
setting.disconnect(SIGNAL(settingChanged(const Setting &, QVariant)),
this, SIGNAL(settingChanged(const Setting &, QVariant)));
}
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