AliveCursor.h

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*
* This file contains private API, this might break at any time between releases.
* Strictly for internal use!
*/
 
#ifndef ZYPP_TUI_OUTPUT_ALIVE_CURSOR_H
#define ZYPP_TUI_OUTPUT_ALIVE_CURSOR_H
 
#include <iostream>
 
namespace ztui {
 
class AliveCursor
{
  public:
  friend std::ostream & operator<<( std::ostream & str, const AliveCursor & obj );
 
  AliveCursor() : _current('-')
  {}
 
  char current() const
  { return _current; }
 
  void increase()
  {
    switch ( _current )
    {
      case '-':
        _current = '\\';
      break;
      case '\\':
        _current = '|';
      break;
      case '|':
        _current = '/';
      break;
      case '/':
        _current = '-';
      break;
    }
  }
 
  AliveCursor & operator++()
  {
    increase();
    return *this;
  }
 
  AliveCursor & operator++(int)
  {
    increase();
    return *this;
  }
 
  AliveCursor & done()
  {
    _current = '*';
    return *this;
  }
 
  private:
  char _current;
};

inline std::ostream & operator<<( std::ostream & str, const AliveCursor & obj )
{ return str << obj.current(); }
 
}
 
#endif