// /home/jason/Projects/DiffyGame/Main.cs created with MonoDevelop
// User: jason at 5:04 AM 7/14/2007
//
// To change standard headers go to Edit->Preferences->Coding->Standard Headers
//
// project created on 7/14/2007 at 5:04 AM
using System;
using Gtk;

namespace DiffyGame
{
	class MainClass
	{
		static public void Main ()
		{			
			//create our window
			WindowClass window = new WindowClass();
		}				
	}
	
	class WindowClass
	{
		DiffyCompute diffy = new DiffyCompute();
		
		Entry entry_1;
		Entry entry_2;
		Entry entry_3;
		Entry entry_4;
		
		public WindowClass ()
		{
			//Start up our diffy object		
			
			Application.Init ();
			
			Window win = new Window("Window");
			win.DeleteEvent += new DeleteEventHandler(delete_event);
			
			Button compute_button = new Button("Compute");
			compute_button.Clicked += new EventHandler(dupdate);
			
			Button cancel_button = new Button("Close");
			cancel_button.Clicked += new EventHandler(exit_event);
			
			//wrapper around buttons
			HBox button_box = new HBox();
			button_box.PackStart(compute_button, true, true, 10);
			button_box.PackStart(cancel_button, true, true, 10);
			
			//whole main box
			VBox main_box = new VBox();
			main_box.PackEnd(button_box, false, true, 0);
			
			//Wrapper around text area
			HBox text_wrapper = new HBox();
			main_box.PackStart(text_wrapper, true, true, 5);
			
			//text area setup
			Label label_1 = new Label("1st Number:");
			Label label_2 = new Label("2nd Number:");
			Label label_3 = new Label("3rd Number:");
			Label label_4 = new Label("4th Number:");
			
			entry_1 = new Entry("0");
			entry_1.SetSizeRequest(60, 20);
			entry_1.MaxLength = 4;
			
			entry_2 = new Entry("0");
			entry_2.SetSizeRequest(60, 20);
			entry_2.MaxLength = 4;
			
			entry_3 = new Entry("0");
			entry_3.SetSizeRequest(60, 20);
			entry_3.MaxLength = 4;
			
			entry_4 = new Entry("0");
			entry_4.SetSizeRequest(60, 20);
			entry_4.MaxLength = 4;
			
			//packing text area
			text_wrapper.PackStart(label_1, false, true, 10);
			text_wrapper.PackStart(entry_1, true, true, 0);
			
			text_wrapper.PackStart(label_2, false, true, 10);
			text_wrapper.PackStart(entry_2, true, true, 0);
			
			text_wrapper.PackStart(label_3, false, true, 10);
			text_wrapper.PackStart(entry_3, true, true, 0);
			
			text_wrapper.PackStart(label_4, false, true, 10);
			text_wrapper.PackStart(entry_4, true, true, 0);
			
			win.Add(main_box);
			win.ShowAll ();			
			
			Application.Run ();
	
		}
		
		public void exit_event(object obj, EventArgs args)
		{
			Application.Quit();
		}
		
		public void delete_event(object obj, DeleteEventArgs args)
		{
			Application.Quit();
		}
		
		public void dupdate(object obj, EventArgs args)
		{
			//string str = "4";
			diffy.update(entry_1, entry_2, entry_3, entry_4);
		}
	}
	
	class DiffyCompute
	{
		public DiffyCompute()
		{
			Console.Write("");
		}
		
		public void update(Entry entry_1, Entry entry_2, Entry entry_3, Entry entry_4)
		{
			int[] new_numbers = get_new(Convert.ToInt32(entry_1.Text),Convert.ToInt32(entry_2.Text),
			                             Convert.ToInt32(entry_3.Text),Convert.ToInt32(entry_4.Text));
				
			entry_1.Text = Convert.ToString(new_numbers[0]);
			entry_2.Text = Convert.ToString(new_numbers[1]);
			entry_3.Text = Convert.ToString(new_numbers[2]);
			entry_4.Text = Convert.ToString(new_numbers[3]);
			
		}
		
		public int[] get_new(int num1, int num2, int num3, int num4)
		{
			
			int new_num1 = do_math(num1, num2);
			int new_num2 = do_math(num2, num3);
			int new_num3 = do_math(num3, num4);
			int new_num4 = do_math(num4, num1);
			
			int[] output = new int[]{ new_num1, new_num2, new_num3, new_num4 };
			
			return output;
		}
				
		public int do_math(int num1, int num2)
		{
			int output;
			if ( num1 >= num2 )
			{
				output = num1 - num2;
			}
			else
			{
				output = num2 - num1;
			}
			return output;
		}
	}
}