File evabWindowAlgorithms.h

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#pragma once

namespace evab
{
  class WindowAlgorithmBase
  {
  public:
    WindowAlgorithmBase(unsigned char aCount = 0);

    virtual void Select(unsigned char aIndex) = 0;

    signed short Selected();

    unsigned char Count();

    unsigned char WindowSize();

  protected:
    signed char indexInWindow(unsigned char aPosition);

    void setCount(unsigned char aCount);

    void setWindowSize(unsigned char aWindowSize);

  protected:
    unsigned char mSelected;    
    unsigned char mCount;       
    unsigned char mWindowStart; 
    unsigned char mWindowSize;  
  };

  class FlipWindowAlgorithm : public WindowAlgorithmBase
  {
  public:
    using WindowAlgorithmBase::WindowAlgorithmBase;
    void Select(unsigned char aIndex) override;
  };

  class ScrollWindowAlgorithm : public WindowAlgorithmBase
  {
  public:
    using WindowAlgorithmBase::WindowAlgorithmBase;
    void Select(unsigned char aIndex) override;
  };

}