LCD.h

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#ifndef LCD_H
#define LCD_H

namespace LCD {
class Device : public Print {
public:
  Device() :
    Print(),
    m_x(0),
    m_y(0),
    m_tab(4),
    m_mode(0)
  {}

  virtual bool begin() = 0;

  virtual bool end()
  {
    display_clear();
    display_off();
    backlight_off();
    return (true);
  }

  virtual void backlight_on() {}

  virtual void backlight_off() {}

  virtual void display_contrast(uint8_t level) { (void) level; }

  virtual void display_on() = 0;

  virtual void display_off() = 0;

  virtual void display_normal() {}

  virtual void display_inverse() {}

  virtual void display_clear() = 0;

  virtual void cursor_blink_on() {}

  virtual void cursor_blink_off() {}

  void cursor_get(uint8_t& x, uint8_t& y) const
    __attribute__((always_inline))
  {
    x = m_x;
    y = m_y;
  }

  virtual void cursor_set(uint8_t x, uint8_t y) = 0;

  virtual void cursor_home()
  {
    cursor_set(0, 0);
  }

  virtual void cursor_update() {}

  uint8_t tab_step() const
    __attribute__((always_inline))
  {
    return (m_tab);
  }

  void tab_step(uint8_t step)
    __attribute__((always_inline))
  {
    m_tab = step;
  }

  uint8_t text_mode() const
    __attribute__((always_inline))
  {
    return (m_mode);
  }

  void text_normal_mode()
    __attribute__((always_inline))
  {
    m_mode = 0;
  }

  void text_inverted_mode()
    __attribute__((always_inline))
  {
    m_mode = 0xff;
  }

protected:
  uint8_t m_x;                  
  uint8_t m_y;                  
  uint8_t m_tab;                
  uint8_t m_mode;               
};
};
#endif