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Diffstat (limited to 'src/gui/kconfigloader.h')
-rw-r--r-- | src/gui/kconfigloader.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/src/gui/kconfigloader.h b/src/gui/kconfigloader.h new file mode 100644 index 00000000..df38ce79 --- /dev/null +++ b/src/gui/kconfigloader.h @@ -0,0 +1,176 @@ +/* + * 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 KCONFIGLOADER_H +#define KCONFIGLOADER_H + +#include <kconfiggroup.h> +#include <kconfigskeleton.h> +#include <ksharedconfig.h> + +#include <kconfiggui_export.h> + +class ConfigLoaderPrivate; + +/** + * @class KConfigLoader kconfigloader.h <KConfigLoader> + * + * @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); + * KConfigLoader appletConfig(configFilePath, &file); + * \endcode + * + * Alternatively, any QIODevice may be used in place of QFile in the + * example above. + * + * KConfigLoader is useful if it is not possible to use compiled code + * and by that the kconfig compiler cannot be used. Common examples are + * scripted plugins which want to provide a configuration interface. + * With the help of KConfigLoader a dynamically loaded ui file can be + * populated with the stored values and also stored back to the config + * file. + * + * An example for populating a QDialog with a dynamically populated UI + * with the help of a KConfigDialogManager: + * \code + * QDialog *dialog = new QDialog(); + * QFile xmlFile("path/to/kconfigxt.xml"); + * KConfigGroup cg = KSharedConfig::openConfig()->group(QString()); + * KConfigLoader *configLoader = new KConfigLoader(cg, &xmlFile, this); + * + * // load the ui file + * QUiLoader *loader = new QUiLoader(this); + * QFile uiFile("path/to/userinterface.ui"); + * uiFile.open(QFile::ReadOnly); + * QWidget *customConfigForm = loader->load(&uiFile, dialog); + * uiFile.close(); + * + * KConfigDialogManager *manager = new KConfigDialogManager(customConfigForm, configLoader); + * if (dialog->exec() == QDialog::Accepted) { + * manager->updateSettings(); + * } + * \endcode + * + * 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 + **/ +class KCONFIGGUI_EXPORT KConfigLoader : 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 + **/ + KConfigLoader(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 + **/ + KConfigLoader(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 + **/ + KConfigLoader(const KConfigGroup &config, QIODevice *xml, QObject *parent = 0); + + ~KConfigLoader(); + + /** + * 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) const; + + /** + * Finds an item by its name + */ + KConfigSkeletonItem *findItemByName(const QString &name) const; + + /** + * Returns the property (variantized value) of the named item + */ + QVariant property(const QString &name) const; + + /** + * 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. + */ + bool usrWriteConfig(); + +private: + ConfigLoaderPrivate * const d; +}; + +#endif //multiple inclusion guard |