--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/inc/glxpointer.h Tue Aug 31 15:14:51 2010 +0300
@@ -0,0 +1,149 @@
+/*
+* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Smart pointer
+*
+*/
+
+
+
+#ifndef T_GLXPOINTER_H
+#define T_GLXPOINTER_H
+
+#include "glxpanic.h"
+
+/**
+ * TGlxPointer
+ *
+ * Smart pointer class. Template that can house any object
+ *
+ * @lib None
+ */
+template <class T>
+class TGlxPointer {
+private:
+ T* pointer;
+ const void* iOwns; // Defined as void* instead of TBool so that can use <pointer> directly as boolean value
+
+public:
+ /**
+ * Default constructor
+ */
+ TGlxPointer() {
+ pointer = NULL;
+ iOwns = 0;
+ }
+
+ /**
+ * Constructor T*
+ */
+ explicit TGlxPointer(T* pointer) {
+ this->pointer = pointer;
+ iOwns = pointer;
+ }
+
+ /**
+ * Constructor
+ */
+ TGlxPointer(const TGlxPointer<T>& ptrObj) { // Should not be const, but without this, ARM compiler refuses
+ iOwns = ptrObj.iOwns;
+ pointer = const_cast<TGlxPointer<T>&>(ptrObj).Release();
+ }
+
+ /**
+ * Destructor
+ */
+ ~TGlxPointer() {
+ if (iOwns) {
+ __ASSERT_DEBUG(pointer != NULL, Panic(EGlxPanicIllegalState));
+ delete pointer;
+ }
+ }
+
+ /**
+ * Operator =
+ */
+ TGlxPointer<T>& operator=(TGlxPointer<T>& ptrObj) {
+ if (this != &ptrObj) {
+ if (iOwns && pointer != ptrObj.pointer) {
+ delete this->pointer;
+ }
+ iOwns = ptrObj.iOwns;
+ pointer = ptrObj.Release();
+ }
+ return *this;
+ }
+
+ /**
+ * Operator =
+ */
+ TGlxPointer<T>& operator=(T* pointer) {
+ if (iOwns && pointer != this->pointer) {
+ delete this->pointer;
+ }
+ iOwns = pointer;
+ this->pointer = pointer;
+ return *this;
+ }
+
+ /**
+ * operator*
+ */
+ inline T& operator*() const {
+ __ASSERT_DEBUG(pointer != NULL, Panic(EGlxPanicNullPointer));
+ return *pointer;
+ }
+
+ /**
+ * operator ->
+ */
+ inline T* operator->() const {
+ __ASSERT_DEBUG(pointer != NULL, Panic(EGlxPanicNullPointer));
+ return pointer;
+ }
+
+ /**
+ * Ptr
+ */
+ inline T* Ptr() const {
+ return pointer;
+ }
+
+ /**
+ * Release
+ * Return the pointer and release ownership
+ */
+ T* Release() {
+ iOwns = 0;
+ return pointer;
+ }
+
+ /**
+ * Owns
+ * Returns ETrue if the object owns the pointer
+ */
+ inline TBool Owns() const {
+ return (TBool)iOwns;
+ }
+
+ /**
+ * PtrRef
+ * Return a reference to the pointer
+ */
+ inline T*& PtrRef() {
+ __ASSERT_DEBUG(pointer != NULL, Panic(EGlxPanicNullPointer));
+ return pointer;
+ }
+};
+
+#endif // T_GLXPOINTER_H