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Diffstat (limited to 'src/codecs/qtextcodecplugin.cpp')
| -rw-r--r-- | src/codecs/qtextcodecplugin.cpp | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/src/codecs/qtextcodecplugin.cpp b/src/codecs/qtextcodecplugin.cpp new file mode 100644 index 000000000..70ebbc715 --- /dev/null +++ b/src/codecs/qtextcodecplugin.cpp @@ -0,0 +1,186 @@ +/**************************************************************************** +** +** Implementation of TQTextCodecPlugin class +** +** Created : 010920 +** +** Copyright (C) 2001-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the tools module of the TQt GUI Toolkit. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 included in the packaging of this file. +** Alternatively you may (at your option) use any later version +** of the GNU General Public License if such license has been +** publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free TQt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing retquirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at sales@trolltech.com. +** +** This file may be used under the terms of the Q Public License as +** defined by Trolltech ASA and appearing in the file LICENSE.TQPL +** included in the packaging of this file. Licensees holding valid TQt +** Commercial licenses may use this file in accordance with the TQt +** Commercial License Agreement provided with the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#include "qtextcodecplugin.h" +#ifndef QT_NO_TEXTCODECPLUGIN +#include "qtextcodecinterface_p.h" + +/*! + \class TQTextCodecPlugin qtextcodecplugin.h + \brief The TQTextCodecPlugin class provides an abstract base for custom TQTextCodec plugins. + \reentrant + \ingroup plugins + + The text codec plugin is a simple plugin interface that makes it + easy to create custom text codecs that can be loaded dynamically + into applications. + + Writing a text codec plugin is achieved by subclassing this base + class, reimplementing the pure virtual functions names(), + createForName(), mibEnums() and createForMib(), and exporting the + class with the \c Q_EXPORT_PLUGIN macro. See the \link + plugins-howto.html TQt Plugins documentation \endlink for details. + + See the \link http://www.iana.org/assignments/character-sets IANA + character-sets encoding file\endlink for more information on mime + names and mib enums. +*/ + +/*! + \fn TQStringList TQTextCodecPlugin::names() const + + Returns the list of mime names supported by this plugin. + + \sa createForName() +*/ + +/*! + \fn TQTextCodec *TQTextCodecPlugin::createForName( const TQString &name ); + + Creates a TQTextCodec object for the codec called \a name. + + \sa names() +*/ + + +/*! + \fn TQValueList<int> TQTextCodecPlugin::mibEnums() const + + Returns the list of mib enums supported by this plugin. + + \sa createForMib() +*/ + +/*! + \fn TQTextCodec *TQTextCodecPlugin::createForMib( int mib ); + + Creates a TQTextCodec object for the mib enum \a mib. + + (See \link + ftp://ftp.isi.edu/in-notes/iana/assignments/character-sets the + IANA character-sets encoding file\endlink for more information) + + \sa mibEnums() +*/ + + + +class TQTextCodecPluginPrivate : public TQTextCodecFactoryInterface +{ +public: + TQTextCodecPluginPrivate( TQTextCodecPlugin *p ) + : plugin( p ) + { + } + virtual ~TQTextCodecPluginPrivate(); + + TQRESULT queryInterface( const TQUuid &iid, TQUnknownInterface **iface ); + Q_REFCOUNT; + + TQStringList featureList() const; + TQTextCodec *createForMib( int mib ); + TQTextCodec *createForName( const TQString &name ); + +private: + TQTextCodecPlugin *plugin; +}; + +TQTextCodecPluginPrivate::~TQTextCodecPluginPrivate() +{ + delete plugin; +} + +TQRESULT TQTextCodecPluginPrivate::queryInterface( const TQUuid &iid, TQUnknownInterface **iface ) +{ + *iface = 0; + + if ( iid == IID_QUnknown ) + *iface = this; + else if ( iid == IID_QFeatureList ) + *iface = this; + else if ( iid == IID_QTextCodecFactory ) + *iface = this; + else + return TQE_NOINTERFACE; + + (*iface)->addRef(); + return TQS_OK; +} + +TQStringList TQTextCodecPluginPrivate::featureList() const +{ + TQStringList keys = plugin->names(); + TQValueList<int> mibs = plugin->mibEnums(); + for ( TQValueList<int>::Iterator it = mibs.begin(); it != mibs.end(); ++it ) + keys += TQString("MIB-%1").arg( *it ); + return keys; +} + +TQTextCodec *TQTextCodecPluginPrivate::createForMib( int mib ) +{ + return plugin->createForMib( mib ); +} + +TQTextCodec *TQTextCodecPluginPrivate::createForName( const TQString &name ) +{ + return plugin->createForName( name ); +} + + +/*! + Constructs a text codec plugin. This is invoked automatically by + the \c Q_EXPORT_PLUGIN macro. +*/ +TQTextCodecPlugin::TQTextCodecPlugin() + : TQGPlugin( d = new TQTextCodecPluginPrivate( this ) ) +{ +} + +/*! + Destroys the text codec plugin. + + You never have to call this explicitly. TQt destroys a plugin + automatically when it is no longer used. +*/ +TQTextCodecPlugin::~TQTextCodecPlugin() +{ +} + +#endif // QT_NO_TEXTCODECPLUGIN |