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86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
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/* This file is part of KCachegrind.
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Copyright (C) 2008 Josef Weidendorfer <Josef.Weidendorfer@gmx.de>
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KCachegrind is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation, version 2.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef CONFIG_H
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#define CONFIG_H
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#include <QString>
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#include <QVariant>
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class ConfigStorage;
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// helper functions for storing specific values
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QList<int> toIntList(QStringList l);
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QStringList toStringList(QList<int> l);
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/**
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* A group of configuration settings.
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* Actual implementation for the backends is done in derived classes.
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*/
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class ConfigGroup
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{
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friend class ConfigStorage;
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public:
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virtual ~ConfigGroup();
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// when value is defaultValue, any previous stored value is removed
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virtual void setValue(const QString& key, const QVariant& value,
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const QVariant& defaultValue = QVariant());
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virtual QVariant value(const QString & key,
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const QVariant& defaultValue) const;
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// the template version is needed for GUI Qt types
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template<typename T>
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inline T value(const QString & key,
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const QVariant & defaultValue = QVariant()) const
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{ return qvariant_cast<T>( value(key, defaultValue) ); }
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protected:
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ConfigGroup();
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};
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/**
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* This is an adapter class for different configuration backends.
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* A singleton.
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*/
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class ConfigStorage
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{
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public:
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ConfigStorage();
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virtual ~ConfigStorage();
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// if second parameter is not-empty, first search for an existing
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// group using the optional suffix, and then without.
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// the group gets readonly.
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static ConfigGroup* group(const QString& group,
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const QString& optSuffix = QString());
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static void setStorage(ConfigStorage*);
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static void cleanup();
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protected:
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virtual ConfigGroup* getGroup(const QString& group,
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const QString& optSuffix);
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static ConfigStorage* _storage;
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};
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#endif // CONFIG_H
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