using System;
using System.Windows.Forms.Design;
using System.ComponentModel.Design;


namespace Gui.Wizard
{
	/// <summary>
	/// Summary description for WizardPageDesigner.
	/// </summary>
	public class WizardPageDesigner : ParentControlDesigner
	{
	
	
		public override DesignerVerbCollection Verbs
		{
			get
			{
				DesignerVerbCollection verbs = new DesignerVerbCollection();
				verbs.Add(new DesignerVerb("Remove Page", new EventHandler(handleRemovePage)));

				return verbs;
			}
		}

		private void handleRemovePage(object sender, EventArgs e)
		{			
			WizardPage page = this.Control as WizardPage;

			IDesignerHost h  = (IDesignerHost) GetService(typeof(IDesignerHost));
			IComponentChangeService c = (IComponentChangeService) GetService(typeof (IComponentChangeService));

			DesignerTransaction dt = h.CreateTransaction("Remove Page");
			
			if (page.Parent is Wizard)
			{
				Wizard wiz = page.Parent as Wizard;

				c.OnComponentChanging(wiz, null);
				//Drop from wizard
				wiz.Pages.Remove(page);
				wiz.Controls.Remove(page);
				c.OnComponentChanged(wiz, null, null, null);
				h.DestroyComponent(page);
			}
			else
			{
				c.OnComponentChanging(page, null);
				//Mark for destruction
				page.Dispose();
				c.OnComponentChanged(page, null, null, null);
			}
			dt.Commit();
		}

	}
}