Add Qt3 development HEAD version

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diff --git a/src/kernel/qsignalmapper.cpp b/src/kernel/qsignalmapper.cpp
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+/****************************************************************************
+**
+** Implementation of QSignalMapper class
+**
+** Created : 980503
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of the kernel module of the Qt 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 Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements 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 [email protected].
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.QPL
+** included in the packaging of this file.  Licensees holding valid Qt
+** Commercial licenses may use this file in accordance with the Qt
+** 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 "qsignalmapper.h"
+#ifndef QT_NO_SIGNALMAPPER
+#include "qptrdict.h"
+
+struct QSignalMapperRec {
+    QSignalMapperRec()
+    {
+	has_int = 0;
+	str_id = QString::null;
+    }
+
+    uint has_int:1;
+
+    int int_id;
+    QString str_id;
+    // extendable to other types of identification
+};
+
+class QSignalMapperData {
+public:
+    QSignalMapperData()
+    {
+	dict.setAutoDelete( TRUE );
+    }
+
+    QPtrDict<QSignalMapperRec> dict;
+};
+
+/*!
+    \class QSignalMapper qsignalmapper.h
+    \brief The QSignalMapper class bundles signals from identifiable senders.
+
+    \ingroup io
+
+    This class collects a set of parameterless signals, and re-emits
+    them with integer or string parameters corresponding to the object
+    that sent the signal.
+*/
+
+/*!
+    Constructs a QSignalMapper called \a name, with parent \a parent.
+    Like all QObjects, it will be deleted when the parent is deleted.
+*/
+QSignalMapper::QSignalMapper( QObject* parent, const char* name ) :
+    QObject( parent, name )
+{
+    d = new QSignalMapperData;
+}
+
+/*!
+    Destroys the QSignalMapper.
+*/
+QSignalMapper::~QSignalMapper()
+{
+    delete d;
+}
+
+/*!
+    Adds a mapping so that when map() is signaled from the given \a
+    sender, the signal mapped(\a identifier) is emitted.
+
+    There may be at most one integer identifier for each object.
+*/
+void QSignalMapper::setMapping( const QObject* sender, int identifier )
+{
+    QSignalMapperRec* rec = getRec(sender);
+    rec->int_id = identifier;
+    rec->has_int = 1;
+}
+
+/*!
+    \overload
+
+    Adds a mapping so that when map() is signaled from the given \a
+    sender, the signal mapper(\a identifier) is emitted.
+
+    There may be at most one string identifier for each object, and it
+    may not be empty.
+*/
+void QSignalMapper::setMapping( const QObject* sender, const QString &identifier )
+{
+    QSignalMapperRec* rec = getRec(sender);
+    rec->str_id = identifier;
+}
+
+/*!
+    Removes all mappings for \a sender. This is done automatically
+    when mapped objects are destroyed.
+*/
+void QSignalMapper::removeMappings( const QObject* sender )
+{
+    d->dict.remove((void*)sender);
+}
+
+void QSignalMapper::removeMapping()
+{
+    removeMappings(sender());
+}
+
+/*!
+    This slot emits signals based on which object sends signals to it.
+*/
+void QSignalMapper::map()
+{
+    const QObject* s = sender();
+    QSignalMapperRec* rec = d->dict.find( (void*)s );
+    if ( rec ) {
+	if ( rec->has_int )
+	    emit mapped( rec->int_id );
+	if ( !rec->str_id.isEmpty() )
+	    emit mapped( rec->str_id );
+    }
+}
+
+QSignalMapperRec* QSignalMapper::getRec( const QObject* sender )
+{
+    QSignalMapperRec* rec = d->dict.find( (void*)sender );
+    if (!rec) {
+	rec = new QSignalMapperRec;
+	d->dict.insert( (void*)sender, rec );
+	connect( sender, SIGNAL(destroyed()), this, SLOT(removeMapping()) );
+    }
+    return rec;
+}
+
+/*!
+    \fn void QSignalMapper::mapped(int)
+
+    This signal is emitted when map() is signaled from an object that
+    has an integer mapping set.
+
+    \sa setMapping()
+*/
+
+/*!
+    \overload void QSignalMapper::mapped(const QString&)
+
+    This signal is emitted when map() is signaled from an object that
+    has a string mapping set.
+
+    \sa setMapping()
+*/
+#endif //QT_NO_SIGNALMAPPER