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