plasma-framework/plasma/configloader.h

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/*
* Copyright 2007 Aaron Seigo <aseigo@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, 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 Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef PLASMA_CONFIGLOADER_H
#define PLASMA_CONFIGLOADER_H
#include <kconfiggroup.h>
#include <kconfigskeleton.h>
#include <ksharedconfig.h>
#include <plasma/plasma_export.h>
/**
* @class ConfigLoader plasma/configloader.h <Plasma/ConfigLoader>
*
* @short A KConfigSkeleton that populates itself based on KConfigXT XML
*
* This class allows one to ship an XML file and reconstitute it into a
* KConfigSkeleton object at runtime. Common usage might look like this:
*
* \code
* QFile file(xmlFilePath);
* Plasma::ConfigLoader appletConfig(configFilePath, &file);
* \endcode
*
* Alternatively, any QIODevice may be used in place of QFile in the
* example above.
*
* Currently the following data types are supported:
*
* @li bools
* @li colors
* @li datetimes
* @li enumerations
* @li fonts
* @li ints
* @li passwords
* @li paths
* @li strings
* @li stringlists
* @li uints
* @li urls
* @li doubles
* @li int lists
* @li longlongs
* @li path lists
* @li points
* @li rects
* @li sizes
* @li ulonglongs
* @li url lists
**/
namespace Plasma
{
class ConfigLoaderPrivate;
class PLASMA_EXPORT ConfigLoader : public KConfigSkeleton
{
public:
/**
* Creates a KConfigSkeleton populated using the definition found in
* the XML data passed in.
*
* @param configFile path to the configuration file to use
* @param xml the xml data; must be valid KConfigXT data
* @param parent optional QObject parent
**/
ConfigLoader(const QString &configFile, QIODevice *xml, QObject *parent = 0);
/**
* Creates a KConfigSkeleton populated using the definition found in
* the XML data passed in.
*
* @param config the configuration object to use
* @param xml the xml data; must be valid KConfigXT data
* @param parent optional QObject parent
**/
ConfigLoader(KSharedConfigPtr config, QIODevice *xml, QObject *parent = 0);
/**
* Creates a KConfigSkeleton populated using the definition found in
* the XML data passed in.
*
* @param config the group to use as the root for configuration items
* @param xml the xml data; must be valid KConfigXT data
* @param parent optional QObject parent
**/
ConfigLoader(const KConfigGroup *config, QIODevice *xml, QObject *parent = 0);
~ConfigLoader();
/**
* Finds the item for the given group and key.
*
* @param group the group in the config file to look in
* @param key the configuration key to find
* @return the associated KConfigSkeletonItem, or 0 if none
*/
KConfigSkeletonItem *findItem(const QString &group, const QString &key);
/**
* Finds an item by its name
*/
KConfigSkeletonItem *findItemByName(const QString &name);
/**
* Returns the property (variantized value) of the named item
*/
QVariant property(const QString &name);
/**
* Check to see if a group exists
*
* @param group the name of the group to check for
* @return true if the group exists, or false if it does not
*/
bool hasGroup(const QString &group) const;
/**
* @return the list of groups defined by the XML
*/
QStringList groupList() const;
protected:
/**
* Hack used to force writing when no default exists in config file.
*/
void usrWriteConfig();
private:
friend class Service;
ConfigLoaderPrivate * const d;
};
} // Plasma namespace
#endif //multiple inclusion guard