Subversion Repositories libOLED

///

/// Dial drawing library : used to display anything from compass display to arcs of "meter" displays

///

#pragma once

#include <cstdint>

class displayDial_t

{

public:

  /// \param display the parent display

  /// \param x x pos

  /// \param y y pos

  /// \param siz = size

  /// \param angle Angle from straight up for lowest (-angle) and highest (angle) reading

  displayDial_t(display_t &display,

                uint8_t x,

                uint8_t y,

                uint8_t siz,

                uint16_t angle = 90);

  /// @brief Construct a display with angle from Angle high to angle low

  /// @param display

  /// @param x

  /// @param y

  /// @param siz

  /// @param angle_high Angle relative to straight up for highest reading

  /// @param angle_low Angle relative to straight up for lowest reading

  displayDial_t(display_t &display,

                uint8_t x,

                uint8_t y,

                uint8_t siz,

                int16_t angle_low,

                int16_t angle_high);

  /// @brief  Put the dial needle on the display 

  /// @param position values are from  0 .. math.SINE_STEPS 

  void draw_needle(int16_t position);

  // draw the scale

  /// \param low low end of range

  /// \param high high end of range

  /// \param width length of long marker

  /// \param num_step number of ticks

  /// \param scale

  void draw_scale(int16_t low, int16_t high, uint8_t width, uint8_t num_step, int16_t scale);

  /// print min/max limits

  void draw_limits();

private:

  display_t &m_display;

  uint8_t const m_xo;    ///< Position of origin

  uint8_t const m_yo;    ///< Position of origin

  uint8_t const m_siz;   ///< Display size

  int16_t const m_angleLow;  ///< Angle for lowest value

  int16_t const m_angleRange; ///< Angle range from lowest to highest  value

  int16_t m_low;         ///< lower scale limit

  int16_t m_high;        ///< upper scale limit

};