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diff --git a/qtinterface/interface_qt3/tqiconset.cpp b/qtinterface/interface_qt3/tqiconset.cpp
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+++ b/qtinterface/interface_qt3/tqiconset.cpp
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+/*
+
+Copyright (C) 2010 Timothy Pearson <kb9vqf@pearsoncomputing.net>
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+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.
+
+*/
+
+#include <tqt.h>
+#include <tqiconset.h>
+
+#ifdef USE_QT4
+
+#include "Qt/q3cleanuphandler.h"
+
+static TQIconFactory *defaultFac = 0;
+static Q3SingleCleanupHandler<TQIconFactory> q_cleanup_icon_factory;
+
+/*! \class TQIconFactory
+  \ingroup advanced
+  \brief The TQIconFactory class is used to create pixmaps for a QIconSet.
+
+  By reimplementing createPixmap(), you can override QIconSet's
+  default algorithm for computing pixmaps not supplied by the user.
+
+  Call setAutoDelete(TRUE) if you want the factory to automatically
+  delete itself when it is no longer needed by QIconSet.
+
+  \sa QIconSet
+*/
+
+/*!
+  Constructs an icon factory.
+*/
+TQIconFactory::TQIconFactory()
+    : autoDel( 0 )
+{
+    count = 0;
+}
+
+/*!
+  Destroys the object and frees any allocated resources.
+*/
+TQIconFactory::~TQIconFactory()
+{
+}
+
+/*!
+  Ceates a pixmap for \a iconSet with a certain \a size, \a mode, and
+  \a state. Returns 0 if the default QIconSet algorithm should be
+  used to create a pixmap that wasn't supplied by the user.
+
+  It is the caller's responsibility to delete the returned pixmap.
+
+  The default implementation always returns 0.
+*/
+QPixmap *TQIconFactory::createPixmap( const QIconSet& /* iconSet */,
+				     QIconSet::Size /* size */,
+				     QIconSet::Mode /* mode */,
+				     QIconSet::State /* state */ )
+{
+    return 0;
+}
+
+/*!
+    \fn void TQIconFactory::setAutoDelete( bool autoDelete )
+
+    If \a autoDelete is TRUE, sets the icon factory to automatically
+    delete itself when it is no longer referenced by any QIconSet and
+    isn't the default factory. If \a autoDelete is FALSE (the default)
+    auto-deletion is disabled.
+
+    \sa autoDelete(), defaultFactory()
+*/
+
+/*!
+  \fn bool TQIconFactory::autoDelete() const
+
+  Returns TRUE if auto-deletion is enabled; otherwise returns FALSE.
+
+  \sa setAutoDelete()
+*/
+
+/*!
+  Returns the default icon factory.
+
+  \sa installDefaultFactory()
+*/
+TQIconFactory *TQIconFactory::defaultFactory()
+{
+    if ( !defaultFac ) {
+	defaultFac = new TQIconFactory;
+	defaultFac->setAutoDelete( TRUE );
+	defaultFac->ref();
+	q_cleanup_icon_factory.set( &defaultFac );
+    }
+    return defaultFac;
+}
+
+/*!
+  Replaces the default icon factory with \a factory.
+*/
+void TQIconFactory::installDefaultFactory( TQIconFactory *factory )
+{
+    if ( !factory )
+	return;
+
+    factory->ref();
+    if ( defaultFac && defaultFac->deref() && defaultFac->autoDelete() )
+	delete defaultFac;
+    defaultFac = factory;
+    q_cleanup_icon_factory.set( &defaultFac );
+}
+
+/**
+  A little do-nothing function to allow Qt3 code compatibility.
+*/
+void QIconSet::installIconFactory( TQIconFactory *factory )
+{
+    #warning "QIconSet::installIconFactory( QIconFactory *factory ) unimplemented!"
+}
+
+#endif // USE_QT4
+\ No newline at end of file