using System;
using System.Collections.Generic;
using System.Linq;

using Gtk;
using SilentorBit;

namespace SpritePacker.GUI
{
	public class MainWindow : Window
	{
		private static bool initialised = false;

		private SpriteListView spriteListDisplay;

		public MainWindow() : base("SpritePacker GUI")
		{
			if (!initialised)
				throw new InvalidOperationException("Error: Gtk hasn't been initialised yet, so you can't create a new window.");

			SetDefaultSize(500, 300);
			SetPosition(WindowPosition.Center);

			// Quit when the close button is pressed
			DeleteEvent += (object o, DeleteEventArgs args) => {
				Application.Quit();
			};

			setupLayout();
		}

		/// <summary>
		/// Initilise GTK# to make it ready for use.
		/// </summary>
		public static void Init()
		{
			initialised = true;
			Application.Init();
		}

		public void Start()
		{
			ShowAll();
			Application.Run();
		}

		private void setupLayout()
		{
			HBox masterContainer = new HBox(true, 10);
			VBox leftPanel = new VBox(false, 0) { MarginRight = 5 };
			VBox rightPanel = new VBox(false, 0) { MarginLeft = 5 };
			Frame leftPanelFrame = new Frame("Sprites") { Child = leftPanel, Margin = 10, MarginRight = 5 };
			Frame rightPanelFrame = new Frame("Preview") { Child = rightPanel, Margin = 10, MarginLeft = 5 };

			spriteListDisplay = new SpriteListView() { Margin = 10 };
			spriteListDisplay.AddItem(new Sprite("/home/sbrl/Pictures/Spaghetti.png"));

			leftPanel.OverrideBackgroundColor(StateFlags.Normal, Gdk.RGBA.Zero);
			leftPanel.PackStart(spriteListDisplay, true, true, 0);

			masterContainer.PackStart(leftPanelFrame, true, true, 0);
			masterContainer.PackStart(rightPanelFrame, true, true, 0);

			Add(masterContainer);
		}
	}
}