public static CanvasAppCommands GetCommandName(string input)
{
CanvasAppCommands command = CanvasAppCommands.OTHER;
string code = input.Split(' ')[0];
try
{
switch (code.ToUpper())
{
case "C":
command = CanvasAppCommands.CREATE;
break;
case "L":
command = CanvasAppCommands.LINE;
break;
case "R":
command = CanvasAppCommands.RECTANGLE;
break;
case "B":
command = CanvasAppCommands.BUCKET_FILL;
break;
case "Q":
command = CanvasAppCommands.QUIT;
break;
default:
command = CanvasAppCommands.OTHER;
break;
}
}
catch (Exception)
{
throw new InvalidCastException("Invalid command");
}
return(command);
}
static void Main(string[] args)
{
CanvasAppCommands command = CanvasAppCommands.OTHER;
CanvasModel canvasModel = null;
BaseCanvas baseCanvas = null;
string input = string.Empty;
do
{
try
{
Console.Write("Enter the command: ");
input = Console.ReadLine().Trim();
if (Helper.IsValidInput(input))
{
if (Helper.IsExitCommand(input))
{
break;
}
command = Helper.GetCommandName(input);
if (canvasModel == null)
{
canvasModel = ModelExtractor.GetCanvasModel(input);
baseCanvas = new BaseCanvas();
baseCanvas.crateCanvas(canvasModel.Width, canvasModel.Height);
}
if (canvasModel != null)
{
if (command == CanvasAppCommands.LINE)
{
LineModel lineModal = new LineModel();
lineModal = ModelExtractor.GetLineModal(input);
baseCanvas.addLine(lineModal.X1, lineModal.Y1, lineModal.X2, lineModal.Y2);
}
if (command == CanvasAppCommands.RECTANGLE)
{
RectangleModel rectangleModel = new RectangleModel();
rectangleModel = ModelExtractor.GetRectangleModel(input);
baseCanvas.addRectangle(rectangleModel.X1, rectangleModel.Y1, rectangleModel.X2, rectangleModel.Y2);
}
if (command == CanvasAppCommands.BUCKET_FILL)
{
BucketFillModel bucketFillModel = new BucketFillModel();
bucketFillModel = ModelExtractor.GetBucketFillModel(input);
baseCanvas.fill(bucketFillModel.X, bucketFillModel.Y, Convert.ToChar(bucketFillModel.Colour));
}
baseCanvas.draw();
}
}
else
{
Console.WriteLine("Invalid Command!!! Please try again...\n");
}
}
catch (InvalidCastException ex)
{
Console.WriteLine("ERROR: " + ex.Message);
}
catch (ArgumentOutOfRangeException ex)
{
Console.WriteLine("ERROR: " + ex.Message);
}
catch (ArgumentException ex)
{
Console.WriteLine("ERROR: " + ex.Message);
}
catch (InvalidOperationException ex)
{
Console.WriteLine("ERROR: " + ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Unable to create Canvas!!!");
Console.WriteLine("Please try again C 10 4 ==> C widht height \n");
}
input = string.Empty;
} while (command != CanvasAppCommands.QUIT);
}