Craig Evans / N5110

Library for interfacing to Nokia 5110 LCD display (as found on the SparkFun website).

Dependents:   LV7_LCDtest LV7_Grupa5_Tim003_Zadatak1 lv7_Grupa5_Tim008_zad1 LV7_PAI_Grupa5_tim10_Zadatak1 ... more

This library is designed to make it easy to interface an mbed with a Nokia 5110 LCD display.

These can be found at Sparkfun (https://www.sparkfun.com/products/10168) and Adafruit (http://www.adafruit.com/product/338).

The library uses the SPI peripheral on the mbed which means it is much faster sending data to the display than other libraries available on other platforms that use software SPI.

The library can print strings as well as controlling individual pixels, meaning that both text and primitive graphics can be displayed.

Bitmap.h

Committer:
eencae
Date:
2020-01-22
Revision:
51:32f9ffeafb6d
Parent:
40:c9262294f2e1

File content as of revision 51:32f9ffeafb6d:

#ifndef BITMAP_H
#define BITMAP_H

#include <vector>

// Forward declarations
class N5110;

/**
 * @brief  A black & white bitmap that can be rendered on an N5110 screen
 * @author Alex Valavanis <a.valavanis@leeds.ac.uk>
 * 
 * @code
  // First declare the pixel map data using '1' for black,
  // or '0' for white pixels
  static int sprite_data[] = {
    0,0,1,0,0,
    0,1,1,1,0,
    0,0,1,0,0,
    0,1,1,1,0,
    1,1,1,1,1,
    1,1,1,1,1,
    1,1,0,1,1,
    1,1,0,1,1
  };

  // Instantiate the Bitmap object using the data above
  Bitmap sprite(sprite_data, 8, 5); // Specify rows and columns in sprite
  
  // We can render the bitmap wherever we want on the screen
  sprite.render(lcd, 20, 6); // x and y locations for rendering
  sprite.render(lcd, 30, 10);
  
  // We can also print its values to the terminal
  sprite.print();
 * @endcode
 */
class Bitmap
{
private:
    /**
     * @brief The contents of the drawing, with pixels stored in row-major order
     * @details '1' represents a black pixel; '0' represents white
     */
    std::vector<int> _contents;
    
    unsigned int _height; ///< The height of the drawing in pixels
    unsigned int _width;  ///< The width of the drawing in pixels
    
public:
    Bitmap(int const          *contents,
           unsigned int const  height,
           unsigned int const  width);

    int get_pixel(unsigned int const row,
                  unsigned int const column) const;

    void print() const;

    void render(N5110 &lcd,
                unsigned int const x0,
                unsigned int const y0) const;
};

#endif // BITMAP_H