/*
 * Copyright (c) 2010 Kov Chai <tchaikov@gmail.com>
 *
 * The contents of this file are subject to the terms of either the GNU Lesser
 * General Public License Version 2.1 only ("LGPL") or the Common Development and
 * Distribution License ("CDDL")(collectively, the "License"). You may not use this
 * file except in compliance with the License. You can obtain a copy of the CDDL at
 * http://www.opensource.org/licenses/cddl1.php and a copy of the LGPLv2.1 at
 * http://www.opensource.org/licenses/lgpl-license.php. See the License for the 
 * specific language governing permissions and limitations under the License. When
 * distributing the software, include this License Header Notice in each file and
 * include the full text of the License in the License file as well as the
 * following notice:
 * 
 * NOTICE PURSUANT TO SECTION 9 OF THE COMMON DEVELOPMENT AND DISTRIBUTION LICENSE
 * (CDDL)
 * For Covered Software in this distribution, this License shall be governed by the
 * laws of the State of California (excluding conflict-of-law provisions).
 * Any litigation relating to this License shall be subject to the jurisdiction of
 * the Federal Courts of the Northern District of California and the state courts
 * of the State of California, with venue lying in Santa Clara County, California.
 * 
 * Contributor(s):
 * 
 * If you wish your version of this file to be governed by only the CDDL or only
 * the LGPL Version 2.1, indicate your decision by adding "[Contributor]" elects to
 * include this software in this distribution under the [CDDL or LGPL Version 2.1]
 * license." If you don't indicate a single choice of license, a recipient has the
 * option to distribute your version of this file under either the CDDL or the LGPL
 * Version 2.1, or to extend the choice of license to its licensees as provided
 * above. However, if you add LGPL Version 2.1 code and therefore, elected the LGPL
 * Version 2 license, then the option applies only if the new code is made subject
 * to such option by the copyright holder. 
 */

#ifndef POINTER_H
#define POINTER_H

template <typename T>
class Pointer
{
public:
    Pointer(T *p = 0) 
        : m_p(0)
    {
        set(p);
    }

    ~Pointer()
    {
        set(0);
    }
    
    Pointer(const Pointer& p)
        : m_p(0)
    {
        set(p.m_p);
    }

    Pointer& operator=(T *object)
    {
        set(object);
        return *this;
    }

    Pointer& operator=(const Pointer<T>& src)
    {
        set(src.m_p);
        return *this;
    }

    const T* operator->() const
    {
        return m_p;
    }

    T* operator->()
    {
        return m_p;
    }

    operator T* () const 
    {
        return m_p;
    }

    operator bool () const
    {
        return m_p != 0;
    }
    
private:
    
    T *m_p;

    void set(T *p)
    {
        if (m_p) {
            g_object_unref(m_p);
        }
        m_p = p;
        
        if (p) {
            g_object_ref_sink(p);
        }
    }
};

#endif// POINTER_H

// -*- indent-tabs-mode: nil -*- vim:et:ts=4
