Copy Constructor Help

[Midknight5]

I am having a real problem completely understand what a copy constructor is and how to write it. I understand the concept of having a function that can create deep copies rather that shallow copies but how to write it im unsure of.

Just for an example im gonna create a class called Graphics, so far all I have in it are two ints rows and columns an a 2d array made up of a class called Pixel (which ive gotten to work.) as well as a static int called graphicsCount.
Now I have my regular constructor that does so:

Graphics::Graphics(int r = 0, int c = 0)
{
     rows = r;
     cols = c;
};

But im lost on a copy contructor. All ive been able to make (According to my C++ book.) is something that looks like this:

Graphics::Graphics(const Graphics& m)
{
                             
}

But from there im lost. It's prolly simpler than im thinking it is but any help or guidance is appreciated!

Edit: Spelling

[Midknight5]

I may have made a bit of progress but im unsure if its right. Check or tell me what im doing wrong.

Graphics::Graphics(const Graphics &m)
{
      this -> rows = m.rows; // copies rows into new object
      this -> cols = m.cols; // copies cols into new object
      
      this -> array = new Pixel[this -> rows]; //copies first element of the array of pixels?
      Pixel = new Pixel[cols]; // copies second element of the array of pixels?
      
      for (int i = 0; i < this -> rows; i++) // Steps thorugh first element?
      {
          for (int q = 0; q < this -> cols; q++) // steps through second element?
          {
              this -> array[i][q] = m.array[i][q]; // copies value?
          }
      }
      
                             
}