flightgear/utils/fgpanel/FGSwitchLayer.hxx

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2022-10-20 20:29:11 +08:00
//
// Written by David Megginson, started January 2000.
// Adopted for standalone fgpanel application by Torsten Dreyer, August 2009
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
#ifndef FGSWITCHLAYER_HXX
#define FGSWITCHLAYER_HXX
#include "FGGroupLayer.hxx"
/**
* A group layer that switches among its children.
*
* The first layer that passes its condition will be drawn, and
* any following layers will be ignored.
*/
class FGSwitchLayer : public FGGroupLayer {
public:
// Transfer pointers!!
FGSwitchLayer ();
virtual void draw ();
};
#endif