fluxbox/src/XrmDatabaseHelper.hh

// XrmDatabaseHelper.hh
// Copyright (c) 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

// $Id: XrmDatabaseHelper.hh,v 1.6 2002/12/01 13:42:06 rathnor Exp $

// This is a helper for XrmDatabase
// when database goes out of scope
// the XrmDatabase variable will be destroyed.

#ifndef XRMDATABASEHELPER_HH
#define XRMDATABASEHELPER_HH

#include <X11/Xlib.h>
#include <X11/Xresource.h>

/**
	Helper class for XrmDatabase.
*/
class XrmDatabaseHelper
{
public:
    XrmDatabaseHelper(char const * filename=0)
	: m_database(filename == 0 ? 0 : XrmGetFileDatabase(filename))
	{ }
	
    ~XrmDatabaseHelper() {
        if (m_database!=0)
            XrmDestroyDatabase(m_database);
    }

    /// assignment operator
    XrmDatabaseHelper& operator=(const XrmDatabase& database) {
        if (m_database!=0)
            XrmDestroyDatabase(m_database);
        m_database = database; 
        return *this;
    }
    bool operator == (const XrmDatabase& database) { return m_database == database; }
    XrmDatabase & operator*(void) {	return m_database; }

private:
    XrmDatabase m_database;	
};

#endif //_XRMDATABASEHELPER_HH_