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#include <iostream>
#include <fstream>
#include <cstdlib>
#include <conio.h>
using namespace std;
void readFile(ifstream& read, int& numUsed, int& activeNum, int a[]);
void displayList(int a[], int numUsed, int activeNum);
void menus();
void sortItem(int a[], int& numUsed, int& activeNum);
void shiftLeft(int a[], int& numUsed, int& activeNum);
void shiftRight(int a[], int& numUsed, int& activeNum);
void deleteFunction(int a[], int& numUsed, int& activeNum);
void insertFunction();
void exitFunction();
void selectFunction(int a[], int& numUsed, int& activeNum);
const int ARRAYS = 10;
int main()
{
ifstream read;
int a[ARRAYS];
int numUsed, activeNum, value, integer;
readFile(read, numUsed, activeNum, a);
read.close();
// getting_info();//gets all the info
do
{
menus(); //displays the menu for the user.
cout << "\n";//skips a few line to make the menu more neat.
displayList(a, numUsed, activeNum);//display_stuff(a[], active, current_used,);//displays the array.
value = getch();
if(value == 224 || value == 0)
{
value = getch();
}
switch(value)
{
case 49:
case 82:
cout << "\nPlease enter an integer:\n";
cin >> integer;
break;
case 50:
case 83:
if(numUsed >= 0)
deleteFunction(a, numUsed, activeNum);
break;
case 51:
case 60:
sortItem(a, numUsed, activeNum);
break;
case 52:
case 80:
selectFunction(a, numUsed, activeNum);
break;
case 53:
case 77:
shiftRight(a, numUsed, activeNum);
break;
case 54:
case 75:
shiftLeft(a, numUsed, activeNum);
break;
case 55:
case 59:
cout << "F1 key, Quit\n";
break;
default:
cout << "\nPlease enter a correct selection.\n";
break;
}
system("CLS");
//Insert 82; 49, Delete 83; , F2 60, down 80, right 77, left 75, F1 59
}while(value != 55 && value != 59);
}
void readFile(ifstream& read, int& numUsed, int& activeNum, int a[])
{
read.open("test.txt");
if(read.fail())
{
cout << "The file has failed to open.\n";
exit(1);
}
read >> numUsed;
read >> activeNum;
for(int i(0); i < numUsed; i++)
{
read >> a[i];
}
}
void displayList(int a[], int numUsed, int activeNum)
{
for(int i = 0; i < numUsed; i++)
{
if (i == activeNum)
cout << "[" << a[i] << "]";
else
cout << a[i] << " ";
}
}
void menus()
{
cout << "Menus:\n"
<< "1.)Insert ""Insert"" key\n"
<< "2.)Delete ""Delete"" key\n"
<< "3.)Sort ""F2"" key\n"
<< "4.)Select ""Down Arrow"" key\n"
<< "5.)Move Right ""Right Arrow"" key\n"
<< "6.)Move Left ""Left Arrow""key\n"
<< "7.)Exit ""F1 key"" key\n";
}
void sortItem(int a[], int& numUsed, int& activeNum)
{
for(int i = numUsed -1; i > 0; i--)
for(int j = 0; j < i; j++)
if(a[j] > a [j+1])
{
int temp = a[j + 1];
a[j + 1] = a[j];
a[j] = temp;
}
}
void shiftLeft(int a[], int& numUsed, int& activeNum)
{
int temp = a[activeNum - 1];
if(activeNum > a[0-1])
{
a[activeNum - 1] = a[activeNum];
a[activeNum] = temp;
activeNum--;
}
}
void shiftRight(int a[], int& numUsed, int& activeNum)
{
int temp = a[activeNum +1];
if(activeNum < numUsed - 1)
{
a[activeNum + 1] = a[activeNum];
a[activeNum] = temp;
activeNum++;
}
}
void selectFunction(int a[], int& numUsed, int& activeNum)
{
int active;
if(activeNum == numUsed -1)
{
activeNum = 0;
active = a[0];
}
else
{
activeNum ++;
active = a[activeNum];
}
}
void deleteFunction(int a[], int& numUsed, int& activeNum)
{
for(int i = 0; i < numUsed; i++)
{
if(i == activeNum)
{
for(int j = i; j < numUsed; j++)
{
a[j] = a[j + 1];
if (activeNum == numUsed - 1)
a[j] = --activeNum;
}
}
}
numUsed--;
a[activeNum--];
activeNum++;
}
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