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kstaticdeleter.h
1 /*
2  * This file is part of the KDE Libraries
3  * Copyright (C) 2000 Stephan Kulow <coolo@kde.org>
4  * 2001 KDE Team
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Library General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Library General Public License for more details.
15  *
16  * You should have received a copy of the GNU Library General Public License
17  * along with this library; see the file COPYING.LIB. If not, write to
18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19  * Boston, MA 02110-1301, USA.
20  *
21  */
22 
23 #ifndef _KSTATIC_DELETER_H_
24 #define _KSTATIC_DELETER_H_
25 
26 #include <kglobal.h>
27 
39 class KDECORE_EXPORT KStaticDeleterBase {
40 public:
41  virtual ~KStaticDeleterBase() { }
47  virtual void destructObject();
48 };
49 
74 template<class type> class KStaticDeleter : public KStaticDeleterBase {
75 public:
76  KStaticDeleter() { deleteit = 0; globalReference = 0; array = false; }
85  KDE_DEPRECATED type *setObject( type *obj, bool isArray = false) {
86  deleteit = obj;
87  globalReference = 0;
88  array = isArray;
89  if (obj)
90  KGlobal::registerStaticDeleter(this);
91  else
92  KGlobal::unregisterStaticDeleter(this);
93  return obj;
94  }
104  type *setObject( type* & globalRef, type *obj, bool isArray = false) {
105  globalReference = &globalRef;
106  deleteit = obj;
107  array = isArray;
108  if (obj)
109  KGlobal::registerStaticDeleter(this);
110  else
111  KGlobal::unregisterStaticDeleter(this);
112  globalRef = obj;
113  return obj;
114  }
115 
120  virtual void destructObject() {
121  if (globalReference)
122  *globalReference = 0;
123  if (array)
124  delete [] deleteit;
125  else
126  delete deleteit;
127  deleteit = 0;
128  }
129  virtual ~KStaticDeleter() {
130  KGlobal::unregisterStaticDeleter(this);
131  destructObject();
132  }
133 private:
134  type *deleteit;
135  type **globalReference;
136  bool array;
137 };
138 
139 #endif

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