This file contains the abstract working of the codebase

Structure

Font class:

It is the parent of all font classes (amongus,drpepper,etc) all other font classes inherit attributes and methods from this class , the virtual functions are overridden in the child classes and are triggered on runtime using runtime polymorphism.

Attributes and Methods:

Private:

vector<vector<char>> letters; 2D vector to store the characters in each of the font This vector is what is actually printed on the screen

unsigned int def_rows; Total number of rows in the font unsigned int def_cols; Total number of columns in the font unsigned int char_rows; The row size of each character in the font unsigned int char_cols; The column size of each character in the font unsigned int curr_col; The current position of the column in the font, Keeping track of this helps us insert new characters into the letters vector

Protected:

char **getCharGrid(unsigned int rows = 0, unsigned int cols = 0) return a 2D character grid of size rows and cols with each char=' ', which can be overwritten later, basically helps in creating new memory space for characters

Public:

Fonts::Fonts(int def_rows, int def_cols)

This constructor initializes the rows and columns of the font and fills the vector this.letter with spaces

void printvector()

This function dumps the 2D vector this.letter on the screen

void pushchar(**character)

This function pushes a character into the 2D vector this.letter at the current column curr_col position

All Virtual functions: These are to be overwriten in the child classes as each letter will be different in each font, each function is supposed to return a 2D character grid of the respective character virtual functions include: virtual char **a() to virtual char **z() virtual char **A() to virtual char **Z() virtual char **Zero() to virtual char **Nine() virtual char **space()