/*
Noah Woodlee
CPE212-01
Project 1, due Sunday, Febuary 21, 2020
*/
#include <iostream>
#include <fstream>
#include <string>

// LoadImage defintion
void LoadImage(const string imagefile, int image[MAXROWS][MAXCOLS])
{
    ifstream input;
    input.open(imagefile.c_str());
    if (!input)
    {
        cout << "Error - File unable to be opened." << endl;
        return;
    }
    int rows, cols, nums;
    string str;
    getline(input, str);
    //cout << str;
    for (int r = 0; r < MAXROWS ; r++) // iterate number of rows
    {
        for (int c = 0; c < MAXCOLS; c++) // iterate number of columns
        {
            input >> nums;
            image[r][c]=nums;
        }
    }
    
} // End of LoadImage

// Flip Horozontal defintion
void FlipHorizontal(int image[MAXROWS][MAXCOLS])
{
    int temp;
    for (int r = 0; r < MAXROWS; r++) // loop for columns 1 & 10
    {
        temp=image[r][0];
        image[r][0]=image[r][MAXCOLS-1];
        image[r][MAXCOLS-1]=temp;
    }
    for (int r = 0; r < MAXROWS; r++) // loop for columns 2 & 9
    {
        temp=image[r][1];
        image[r][1]=image[r][MAXCOLS-2];
        image[r][MAXCOLS-2]=temp;
    }
    for (int r = 0; r < MAXROWS; r++) // loop for columns 3 & 8
    {
        temp=image[r][2];
        image[r][2]=image[r][MAXCOLS-3];
        image[r][MAXCOLS-3]=temp;
    }
    for (int r = 0; r < MAXROWS; r++) // loop for column 4 & 7
    {
        temp=image[r][3];
        image[r][3]=image[r][MAXCOLS-4];
        image[r][MAXCOLS-4]=temp;
    }
    for (int r = 0; r < MAXROWS; r++) // loop for column 5 & 6
    {
        temp=image[r][4];
        image[r][4]=image[r][MAXCOLS-5];
        image[r][MAXCOLS-5]=temp;
    }
} // End of FlipHorizontal function

// FlipVertical defintion
void FlipVertical(int image[MAXROWS][MAXCOLS])
{
    int temp;
    for (int c = 0; c < MAXCOLS; c++) // loop for rows 1 & 10
    {
        temp = image[0][c];
        image[0][c] = image[MAXROWS-1][c];
        image[MAXROWS-1][c] = temp;
    }
    for (int c = 0; c < MAXCOLS; c++) // loop for rows 2 & 9
    {
        temp = image[1][c];
        image[1][c] = image[MAXROWS-2][c];
        image[MAXCOLS-2][c] = temp;
    }
    for (int c = 0; c < MAXCOLS; c++) // loop for rows 3 & 8
    {
        temp = image[2][c];
        image[2][c] = image[MAXROWS-3][c];
        image[MAXCOLS-3][c]=temp;
    }
    for (int c = 0; c < MAXCOLS; c++) // loop for rows 4 & 7
    {
        temp = image[3][c];
        image[3][c] = image[MAXROWS-4][c];
        image[MAXCOLS-4][c] = temp;
    }
    for (int c = 0; c < MAXCOLS; c++) // loop for rows 5 & 6
    {
        temp = image[4][c];
        image[4][c] = image[MAXROWS-5][c];
        image[MAXCOLS-5][c] = temp;
    }
}

// RotateCW defintion
void RotateCW(int image[MAXROWS][MAXCOLS])
{
    int n = MAXCOLS;
    for (int i = 0; i < n/2; i++)
    {
        for (int j = i; j < n-i-1; j++)
        {
            int temp = image[i][j];
            image[i][j]=image[n-1-j][i];
            image[n - 1 - j][i] = image[n - 1 - i][n - 1 - j];
            image[n - 1 - i][n - 1 - j] = image[j][n - 1 - i];
            image[j][n - 1 - i] = temp;
        }
        
    }
    
}

// RotateCCW defintion
void RotateCCW(int image[MAXROWS][MAXCOLS])
{
    int n=MAXROWS;
      for(int i=0;i<n/2;i++)
  {
      for(int j=i;j<n-i-1;j++)
      {
          int temp=image[i][j];
          image[i][j]=image[j][n-i-1];
          image[j][n-i-1]=image[n-i-1][n-j-1];
          image[n-i-1][n-j-1]=image[n-j-1][i];
          image[n-j-1][i]=temp;
      }
  }
}

// Transpose defintion
void Transpose(int image[MAXROWS][MAXCOLS])
{
    int temp;
    for (int r = 0; r < MAXROWS; r++){ // loop to increment rows
        for (int c = 0; c < r; c++) // loop to increment columns
        {
            temp = image[r][c];
            image[r][c] = image[c][r];
            image[c][r] = temp;
        }
    }
}