diff options
Diffstat (limited to 'tdeutils/ksettings/dispatcher.h')
-rw-r--r-- | tdeutils/ksettings/dispatcher.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/tdeutils/ksettings/dispatcher.h b/tdeutils/ksettings/dispatcher.h new file mode 100644 index 000000000..fa0c9e6c9 --- /dev/null +++ b/tdeutils/ksettings/dispatcher.h @@ -0,0 +1,133 @@ +/* This file is part of the KDE project + Copyright (C) 2003 Matthias Kretz <kretz@kde.org> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License version 2 as published by the Free Software Foundation. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#ifndef KSETTINGS_DISPATCHER_H +#define KSETTINGS_DISPATCHER_H + +#include <tqobject.h> +#include <tqmap.h> +#include <tdelibs_export.h> + +class TQCString; +class TQSignal; +class TQStrList; +template<class T> class KStaticDeleter; +class TDEInstance; +class TDEConfig; + +namespace KSettings +{ + +/** + * @ingroup settings + * @short Dispatch change notifications from the KCMs to the program. + * + * Since your program does not have direct control over the KCMs that get loaded + * into the TDEConfigureDialog you need a way to get notified. This is what you + * do: + * \code + * Dispatcher::self()->registerInstance( instance(), this, TQT_SLOT( loadSettings() ) ); + * \endcode + * + * @author Matthias Kretz <kretz@kde.org> + * @since 3.2 + */ +class KUTILS_EXPORT Dispatcher : public TQObject +{ + friend class KStaticDeleter<Dispatcher>; + + Q_OBJECT + public: + /** + * Get a reference the the Dispatcher object. + */ + static Dispatcher * self(); + + /** + * Register a slot to be called when the configuration for the instance + * has changed. @p instance is the TDEInstance object + * that is passed to KGenericFactory (if it is used). You can query + * it with KGenericFactory<YourClassName>::instance(). + * instance->instanceName() is also the same name that is put into the + * .desktop file of the KCMs for the X-TDE-ParentComponents. + * + * @param instance The TDEInstance object + * @param recv The object that should receive the signal + * @param slot The slot to be called: TQT_SLOT( slotName() ) + */ + void registerInstance( TDEInstance * instance, TQObject * recv, const char * slot ); + + /** + * @return the TDEConfig object that belongs to the instanceName + */ + TDEConfig * configForInstanceName( const TQCString & instanceName ); + + /** + * @return a list of all the instance names that are currently + * registered + */ + TQStrList instanceNames() const; + +//X /** +//X * @return The TDEInstance object belonging to the instance name you pass +//X * (only works for registered instances of course). +//X */ +//X TDEInstance * instanceForName( const TQCString & instanceName ); + + public slots: + /** + * Call this slot when the configuration belonging to the associated + * instance name has changed. The registered slot will be called. + * + * @param instanceName The value of X-TDE-ParentComponents. + */ + void reparseConfiguration( const TQCString & instanceName ); + + /** + * When this slot is called the TDEConfig objects of all the registered + * instances are sync()ed. This is usefull when some other TDEConfig + * objects will read/write from/to the same config file, so that you + * can first write out the current state of the TDEConfig objects. + */ + void syncConfiguration(); + + private slots: + void unregisterInstance( TQObject * ); + + private: + Dispatcher( TQObject * parent = 0, const char * name = 0 ); + ~Dispatcher(); + static Dispatcher * m_self; + + struct InstanceInfo { + TDEInstance * instance; + TQSignal * signal; + int count; + }; + TQMap<TQCString, InstanceInfo> m_instanceInfo; + TQMap<TQObject *, TQCString> m_instanceName; + + class DispatcherPrivate; + DispatcherPrivate * d; +}; + +} + +// vim: sw=4 sts=4 et +#endif // KSETTINGS_DISPATCHER_H |