Add Qt3 development HEAD version

1 files changed, 130 insertions, 0 deletions

diff --git a/src/tools/qcleanuphandler.h b/src/tools/qcleanuphandler.h
new file mode 100644
index 0000000..538e9d1
--- /dev/null
+++ b/src/tools/qcleanuphandler.h
@@ -0,0 +1,130 @@
+/****************************************************************************
+**
+** ...
+**
+** Copyright (C) 2001-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of the tools 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 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.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.
+**
+**********************************************************************/
+
+#ifndef QCLEANUPHANDLER_H
+#define QCLEANUPHANDLER_H
+
+#ifndef QT_H
+#include "qptrlist.h"
+#endif // QT_H
+
+template<class Type>
+class QCleanupHandler
+{
+public:
+    QCleanupHandler() : cleanupObjects( 0 ) {}
+    ~QCleanupHandler() { clear(); }
+
+    Type* add( Type **object ) {
+	if ( !cleanupObjects )
+	    cleanupObjects = new QPtrList<Type*>;
+	cleanupObjects->insert( 0, object );
+	return *object;
+    }
+
+    void remove( Type **object ) {
+	if ( !cleanupObjects )
+	    return;
+	if ( cleanupObjects->findRef( object ) >= 0 )
+	    (void) cleanupObjects->take();
+    }
+
+    bool isEmpty() const {
+	return cleanupObjects ? cleanupObjects->isEmpty() : TRUE;
+    }
+
+    void clear() {
+	if ( !cleanupObjects )
+	    return;
+	QPtrListIterator<Type*> it( *cleanupObjects );
+	Type **object;
+	while ( ( object = it.current() ) ) {
+	    delete *object;
+	    *object = 0;
+	    cleanupObjects->remove( object );
+	}
+	delete cleanupObjects;
+	cleanupObjects = 0;
+    }
+
+private:
+    QPtrList<Type*> *cleanupObjects;
+};
+
+template<class Type>
+class QSingleCleanupHandler
+{
+public:
+    QSingleCleanupHandler() : object( 0 ) {}
+    ~QSingleCleanupHandler() {
+	if ( object ) {
+	    delete *object;
+	    *object = 0;
+	}
+    }
+    Type* set( Type **o ) {
+	object = o;
+	return *object;
+    }
+    void reset() { object = 0; }
+private:
+    Type **object;
+};
+
+template<class Type>
+class QSharedCleanupHandler
+{
+public:
+    QSharedCleanupHandler() : object( 0 ) {}
+    ~QSharedCleanupHandler() {
+	if ( object ) {
+	    if ( (*object)->deref() )
+		delete *object;
+	    *object = 0;
+	}
+    }
+    Type* set( Type **o ) {
+	object = o;
+	return *object;
+    }
+    void reset() { object = 0; }
+private:
+    Type **object;
+};
+
+#endif //QCLEANUPHANDLER_H