| 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Implementation of QTextCodecFactory class
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| 4 | **
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| 5 | ** Created : 010130
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| 6 | **
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| 7 | ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
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| 8 | **
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| 9 | ** This file is part of the tools module of the Qt GUI Toolkit.
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| 10 | **
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| 11 | ** This file may be distributed under the terms of the Q Public License
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| 12 | ** as defined by Trolltech AS of Norway and appearing in the file
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| 13 | ** LICENSE.QPL included in the packaging of this file.
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| 14 | **
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| 15 | ** This file may be distributed and/or modified under the terms of the
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| 16 | ** GNU General Public License version 2 as published by the Free Software
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| 17 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 18 | ** packaging of this file.
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| 19 | **
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| 20 | ** Licensees holding valid Qt Enterprise Edition licenses may use this
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| 21 | ** file in accordance with the Qt Commercial License Agreement provided
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| 22 | ** with the Software.
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| 23 | **
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| 24 | ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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| 25 | ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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| 26 | **
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| 27 | ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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| 28 | ** information about Qt Commercial License Agreements.
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| 29 | ** See http://www.trolltech.com/qpl/ for QPL licensing information.
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| 30 | ** See http://www.trolltech.com/gpl/ for GPL licensing information.
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| 31 | **
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| 32 | ** Contact info@trolltech.com if any conditions of this licensing are
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| 33 | ** not clear to you.
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| 34 | **
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| 35 | **********************************************************************/
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| 36 |
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| 37 | #include "qtextcodecfactory.h"
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| 38 |
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| 39 | #ifndef QT_NO_TEXTCODEC
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| 40 |
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| 41 | #ifndef QT_NO_COMPONENT
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| 42 | #include "qapplication.h"
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| 43 | #include "qcleanuphandler.h"
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| 44 | #include <private/qpluginmanager_p.h>
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| 45 | #include "qtextcodecinterface_p.h"
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| 46 |
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| 47 | #ifdef QT_THREAD_SUPPORT
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| 48 | # include <private/qmutexpool_p.h>
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| 49 | #endif // QT_THREAD_SUPPORT
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| 50 |
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| 51 | #include <stdlib.h>
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| 52 |
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| 53 |
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| 54 | static QPluginManager<QTextCodecFactoryInterface> *manager = 0;
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| 55 | static QSingleCleanupHandler< QPluginManager<QTextCodecFactoryInterface> > cleanup_manager;
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| 56 |
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| 57 | static void create_manager()
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| 58 | {
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| 59 | if ( manager ) // already created
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| 60 | return;
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| 61 |
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| 62 | #ifdef QT_THREAD_SUPPORT
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| 63 | // protect manager creation
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| 64 | QMutexLocker locker( qt_global_mutexpool ?
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| 65 | qt_global_mutexpool->get( &manager ) : 0);
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| 66 |
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| 67 | // we check the manager pointer again to make sure that another thread
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| 68 | // has not created the manager before us.
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| 69 |
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| 70 | if ( manager ) // already created
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| 71 | return;
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| 72 | #endif
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| 73 |
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| 74 | manager =
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| 75 | new QPluginManager<QTextCodecFactoryInterface>(IID_QTextCodecFactory,
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| 76 | QApplication::libraryPaths(), "/codecs",
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| 77 | FALSE);
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| 78 | Q_CHECK_PTR( manager );
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| 79 | cleanup_manager.set( &manager );
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| 80 | }
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| 81 |
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| 82 | #endif // QT_NO_COMPONENT
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| 83 |
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| 84 |
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| 85 | QTextCodec *QTextCodecFactory::createForName(const QString &name)
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| 86 | {
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| 87 | QTextCodec *codec = 0;
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| 88 |
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| 89 | #ifndef QT_NO_COMPONENT
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| 90 |
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| 91 | // make sure the manager is created
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| 92 | create_manager();
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| 93 |
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| 94 | QInterfacePtr<QTextCodecFactoryInterface> iface;
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| 95 | manager->queryInterface(name, &iface );
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| 96 |
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| 97 | if (iface)
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| 98 | codec = iface->createForName(name);
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| 99 |
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| 100 | #endif // QT_NO_COMPONENT
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| 101 |
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| 102 | return codec;
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| 103 | }
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| 104 |
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| 105 |
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| 106 | QTextCodec *QTextCodecFactory::createForMib(int mib)
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| 107 | {
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| 108 | QTextCodec *codec = 0;
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| 109 |
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| 110 | #ifndef QT_NO_COMPONENT
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| 111 |
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| 112 | // make sure the manager is created
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| 113 | create_manager();
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| 114 |
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| 115 | QInterfacePtr<QTextCodecFactoryInterface> iface;
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| 116 | manager->queryInterface("MIB-" + QString::number(mib), &iface );
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| 117 |
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| 118 | if (iface)
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| 119 | codec = iface->createForMib(mib);
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| 120 |
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| 121 | #endif // QT_NO_COMPONENT
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| 122 |
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| 123 | return codec;
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| 124 | }
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| 125 |
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| 126 |
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| 127 | #endif // QT_NO_TEXTCODEC
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