#ifndef NDBOOLSWITCH_H #define NDBOOLSWITCH_H /** * $LicenseInfo:firstyear=2013&license=fsviewerlgpl$ * Phoenix Firestorm Viewer Source Code * Copyright (C) 2013, Nicky Dasmijn * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. * * 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * The Phoenix Firestorm Project, Inc., 1831 Oakwood Drive, Fairmont, Minnesota 56031-3225 USA * http://www.firestormviewer.org * $/LicenseInfo$ */ namespace nd { namespace utils { class boolSwitch { bool *mLocation; bool mOriginalValue; bool mNeedsReset; public: boolSwitch( bool *aLocation, bool aValue ) : mLocation( aLocation ) , mNeedsReset( false ) { if( mLocation ) { mOriginalValue = *mLocation; mNeedsReset = true; *mLocation = aValue; } } ~boolSwitch( ) { reset(); } void reset() { if( mLocation && mNeedsReset ) *mLocation = mOriginalValue; mNeedsReset = false; } }; } } #endif