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/*
Copyright (C) 2010 Timothy Pearson <[email protected]>
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.
*/
#ifndef TQT_TQCLEANUPHANDLER_H
#define TQT_TQCLEANUPHANDLER_H
#include <tqt.h>
#ifdef USE_QT3
// Reimplement the QCleanupHandler class
// For Qt3, no changes are needed
#include <qcleanuphandler.h>
#endif // USE_QT3
#ifdef USE_QT4
// Reimplement the QCleanupHandler class
// For Qt4, some changes are needed
//#include <Qt/qcleanuphandler.h>
#include "tqptrlist.h"
template<class Type>
class TQCleanupHandler
{
public:
TQCleanupHandler() : cleanupObjects( 0 ) {}
~TQCleanupHandler() { clear(); }
Type* add( Type **object ) {
if ( !cleanupObjects )
cleanupObjects = new Q3PtrList<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;
Q3PtrListIterator<Type*> it( *cleanupObjects );
Type **object;
while ( ( object = it.current() ) ) {
delete *object;
*object = 0;
cleanupObjects->remove( object );
}
delete cleanupObjects;
cleanupObjects = 0;
}
private:
Q3PtrList<Type*> *cleanupObjects;
};
template<class Type>
class TQSingleCleanupHandler
{
public:
TQSingleCleanupHandler() : object( 0 ) {}
~TQSingleCleanupHandler() {
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 TQSharedCleanupHandler
{
public:
TQSharedCleanupHandler() : object( 0 ) {}
~TQSharedCleanupHandler() {
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 // USE_QT4
#endif /* TQT_TQCLEANUPHANDLER_H */
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