Merge branch 'master' of http://scm.trinitydesktop.org/scm/git/tdelibs

1 files changed, 60 insertions, 0 deletions

diff --git a/tdehtml/dom/dom_misc.h b/tdehtml/dom/dom_misc.h
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+++ b/tdehtml/dom/dom_misc.h
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+/*
+ * This file is part of the DOM implementation for KDE.
+ *
+ * (C) 1999 Lars Knoll (knoll@kde.org)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library 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 _DOM_RefCountImpl_h_
+#define _DOM_RefCountImpl_h_
+
+#include <tdelibs_export.h>
+
+namespace DOM {
+
+/*
+ * This implements the reference counting scheme used for all internal
+ * DOM objects.
+ *
+ * Other objects should overload deleteMe() to fit their needs. The default
+ * implementation deletes the object if the ref count drops to 0.
+ */
+class TDEHTML_EXPORT DomShared
+{
+public:
+  DomShared() : _ref( 0 ) {}
+  virtual ~DomShared();
+
+  /* Overload this function if you want a different deletion behavior
+   */
+  virtual bool deleteMe();
+
+  void ref() { _ref++; }
+  void deref() { if(_ref) _ref--; if(!_ref && deleteMe()) delete this; }
+  bool hasOneRef() const { return _ref == 1; }
+  unsigned int refCount() const { return _ref; }
+
+protected:
+    // the number of DOMObjects referencing this Node
+    // An implementation object will delete itself, if it has
+    // no DOMObject referencing it, and deleteMe() returns true.
+    unsigned int _ref;
+};
+
+} // namespace
+
+#endif