gls_painter.h

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/*! \file
  \brief The GlsPainter interface
 
  \par Copyright Information
 
  Copyright (c) 2018 by The DiSTI Corporation.<br>
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  NO WARRANTY. THE SOFTWARE IS PROVIDED "AS-IS," WITHOUT WARRANTY OF ANY KIND,
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*/
#ifndef INCLUDED_GLS_PAINTER_H
#define INCLUDED_GLS_PAINTER_H
 
#include "disti_include.h"
#include "gls_cpp_lang_support.h"
 
namespace disti
{
/// Interface that can be implemented by a class that is the owner of a frame buffer (e.g. DisplayFrame or GlsMimicGroup).
/// Used to notify the owner of the frame buffer that the conents of the scene has changed and needs to be redrawn.
class GlsPainter
{
public:
    /// Notify the painter that the scene needs to be redrawn.
    virtual void Invalidate() = 0;
 
    /// \return Whether or not the painter has already been invalidated.
    virtual bool IsInvalidated() const = 0;
 
protected:
    GlsPainter() {}
    virtual ~GlsPainter() {}
 
private:
    // Disable copying
    GlsPainter( const GlsPainter& ) DISTI_SPECIAL_MEM_FUN_DELETE;
    void operator=( const GlsPainter& ) DISTI_SPECIAL_MEM_FUN_DELETE;
};
} // namespace disti
 
#endif