Add Qt3 development HEAD version

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diff --git a/src/kernel/qsignal.cpp b/src/kernel/qsignal.cpp
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+/****************************************************************************
+**
+** Implementation of QSignal class
+**
+** Created : 941201
+**
+** 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 "qsignal.h"
+#include "qmetaobject.h"
+#include "qguardedptr.h"
+
+/*!
+    \class QSignal qsignal.h
+    \brief The QSignal class can be used to send signals for classes
+    that don't inherit QObject.
+
+    \ingroup io
+    \ingroup misc
+
+    If you want to send signals from a class that does not inherit
+    QObject, you can create an internal QSignal object to emit the
+    signal. You must also provide a function that connects the signal
+    to an outside object slot.  This is how we have implemented
+    signals in the QMenuData class, which is not a QObject.
+
+    In general, we recommend inheriting QObject instead. QObject
+    provides much more functionality.
+
+    You can set a single QVariant parameter for the signal with
+    setValue().
+
+    Note that QObject is a \e private base class of QSignal, i.e. you
+    cannot call any QObject member functions from a QSignal object.
+
+    Example:
+    \code
+	#include <qsignal.h>
+
+	class MyClass
+	{
+	public:
+	    MyClass();
+	    ~MyClass();
+
+	    void doSomething();
+
+	    void connect( QObject *receiver, const char *member );
+
+	private:
+	    QSignal *sig;
+	};
+
+	MyClass::MyClass()
+	{
+	    sig = new QSignal;
+	}
+
+	MyClass::~MyClass()
+	{
+	    delete sig;
+	}
+
+	void MyClass::doSomething()
+	{
+	    // ... does something
+	    sig->activate(); // emits the signal
+	}
+
+	void MyClass::connect( QObject *receiver, const char *member )
+	{
+	    sig->connect( receiver, member );
+	}
+    \endcode
+*/
+
+/*!
+    Constructs a signal object called \a name, with the parent object
+    \a parent. These arguments are passed directly to QObject.
+*/
+
+QSignal::QSignal( QObject *parent, const char *name )
+    : QObject( parent, name )
+{
+    isSignal = TRUE;
+#ifndef QT_NO_VARIANT
+    val = 0;
+#endif
+}
+
+/*!
+    Destroys the signal. All connections are removed, as is the case
+    with all QObjects.
+*/
+QSignal::~QSignal()
+{
+}
+#ifndef QT_NO_VARIANT
+// Returns TRUE if it matches ".+(.*int.*"
+static inline bool intSignature( const char *member )
+{
+    QCString s( member );
+    int p = s.find( '(' );
+    return p > 0 && p < s.findRev( "int" );
+}
+#endif
+/*!
+    Connects the signal to \a member in object \a receiver.
+
+    \sa disconnect(), QObject::connect()
+*/
+
+bool QSignal::connect( const QObject *receiver, const char *member )
+{
+#ifndef QT_NO_VARIANT
+    if ( intSignature( member ) )
+#endif
+	return QObject::connect( (QObject *)this, SIGNAL(intSignal(int)), receiver, member );
+#ifndef QT_NO_VARIANT
+    return QObject::connect( (QObject *)this, SIGNAL(signal(const QVariant&)),
+			     receiver, member );
+#endif
+}
+
+/*!
+    Disonnects the signal from \a member in object \a receiver.
+
+    \sa connect(), QObject::disconnect()
+*/
+
+bool QSignal::disconnect( const QObject *receiver, const char *member )
+{
+    if (!member)
+	return QObject::disconnect( (QObject *)this, 0, receiver, member);
+#ifndef QT_NO_VARIANT
+    if ( intSignature( member ) )
+#endif
+	return QObject::disconnect( (QObject *)this, SIGNAL(intSignal(int)), receiver, member );
+#ifndef QT_NO_VARIANT
+    return QObject::disconnect( (QObject *)this, SIGNAL(signal(const QVariant&)),
+				receiver, member );
+#endif
+}
+
+
+/*!
+  \fn bool QSignal::isBlocked() const
+  \obsolete
+  Returns TRUE if the signal is blocked, or FALSE if it is not blocked.
+
+  The signal is not blocked by default.
+
+  \sa block(), QObject::signalsBlocked()
+*/
+
+/*!
+  \fn void QSignal::block( bool b )
+  \obsolete
+  Blocks the signal if \a b is TRUE, or unblocks the signal if \a b is FALSE.
+
+  An activated signal disappears into hyperspace if it is blocked.
+
+  \sa isBlocked(), activate(), QObject::blockSignals()
+*/
+
+
+/*!
+    \fn void QSignal::activate()
+
+    Emits the signal. If the platform supports QVariant and a
+    parameter has been set with setValue(), this value is passed in
+    the signal.
+*/
+void  QSignal::activate()
+{
+#ifndef QT_NO_VARIANT
+    /* Create this QGuardedPtr on this, if we get destroyed after the intSignal (but before the variant signal)
+       we cannot just emit the signal (because val has been destroyed already) */
+    QGuardedPtr<QSignal> me = this;
+    if( me ) 
+	emit intSignal( val.toInt() );
+    if( me ) 
+	emit signal( val );
+#else
+    emit intSignal(0);
+#endif
+}
+
+#ifndef QT_NO_VARIANT
+/*!
+    Sets the signal's parameter to \a value
+*/
+void QSignal::setValue( const QVariant &value )
+{
+    val = value;
+}
+
+/*!
+    Returns the signal's parameter
+*/
+QVariant QSignal::value() const
+{
+    return val;
+}
+/*! \fn void QSignal::signal( const QVariant & )
+    \internal
+*/
+/*! \fn void QSignal::intSignal( int )
+    \internal
+*/
+
+#ifndef QT_NO_COMPAT
+/*! \obsolete */
+void QSignal::setParameter( int value )
+{
+    val = value;
+}
+
+/*! \obsolete */
+int QSignal::parameter() const
+{
+    return val.toInt();
+}
+#endif
+#endif //QT_NO_VARIANT