flightgear/utils/fgpanel/FGInstrumentLayer.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.
//
#pragma once
#include <vector>
#include <simgear/props/condition.hxx>
#include "FGPanelTransformation.hxx"
/**
* A single layer of a multi-layered instrument.
*
* Each layer can be subject to a series of transformations based
* on current FGFS instrument readings: for example, a texture
* representing a needle can rotate to show the airspeed.
*/
class FGInstrumentLayer : public SGConditional {
public:
FGInstrumentLayer (const int w = -1, const int h = -1);
virtual ~FGInstrumentLayer ();
virtual void draw () = 0;
virtual void transform () const;
virtual int getWidth () const;
virtual int getHeight () const;
virtual void setWidth (const int w);
virtual void setHeight (const int h);
// Transfer pointer ownership!!
// DEPRECATED
virtual void addTransformation (FGPanelTransformation * const transformation);
protected:
int m_w, m_h;
typedef std::vector <FGPanelTransformation *> transformation_list;
transformation_list m_transformations;
};