/// <summary>
/// Uses the input string to the constructor to create a navigation sequence through the keyboard
/// </summary>
private void CalculateNavigationPath()
{
this.navigationPath = String.Empty;
Position startPosition = new Position(0, 0);
Position currentPosition = startPosition;
Keyboard keyBoard = new Keyboard();
foreach (char a in searchCommand)
{
Key selectedKey = keyBoard.GetSelectedKey(a.ToString());
//Handle Space character
if (selectedKey.Value == " ")
{
this.navigationPath += "S,";
}
else
{
Position goToPosition = selectedKey.KeyPosition;
SetKeySequence(currentPosition, goToPosition);
this.navigationPath += "#,";
currentPosition = goToPosition;
}
}
//Clean up hanging comma
if (this.navigationPath.Length > 0)
this.navigationPath = this.navigationPath.TrimEnd(',');
}
/// <summary>
/// Method that accepts the current position and the go to position as arguments
/// to calculate the vertical and horizonatal moves then concatenates the moves to the navigation sequence
/// </summary>
/// <param name="currentPosition"></param>
/// <param name="goToPosition"></param>
private void SetKeySequence(Position currentPosition, Position goToPosition)
{
string oneKeySequence = String.Empty;
int verticalMove = currentPosition.X - goToPosition.X;
int horizontalMove = currentPosition.Y - goToPosition.Y;
if (verticalMove > 0)
MoveUp(verticalMove);
if (verticalMove < 0)
MoveDown(Math.Abs(verticalMove));
if (horizontalMove > 0)
MoveLeft(horizontalMove);
if (horizontalMove < 0)
MoveRight(Math.Abs(horizontalMove));
}
