using System;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;

using TheBox.Data;

namespace TheBox.Controls.Params
{
	/// <summary>
	/// Summary description for ConstructorsViewer.
	/// </summary>
	public class ConstructorsViewer : System.Windows.Forms.UserControl
	{
		private System.Windows.Forms.CheckBox chkUse;
		private System.Windows.Forms.LinkLabel lnk1;
		private System.Windows.Forms.LinkLabel lnk2;
		private System.Windows.Forms.LinkLabel lnk3;
		private System.Windows.Forms.LinkLabel lnk4;
		private System.Windows.Forms.Label labNoCtors;
		/// <summary> 
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		private IParam m_Param1;
		private IParam m_Param2;
		private ConstructorDef m_CurrentCtor;

		public ConstructorsViewer()
		{
			// This call is required by the Windows.Forms Form Designer.
			InitializeComponent();
		}

		private BoxItem m_Item;
		private bool m_SetUp = false;

		/// <summary>
		/// Sets the item currently selected
		/// </summary>
		public BoxItem Item
		{
			set
			{
				m_SetUp = true;

				m_Item = value;
				CleanUp();

				if ( m_Item == null )
				{
					chkUse.Enabled = false;
					labNoCtors.Visible = false;

					lnk1.Visible = false;
					lnk2.Visible = false;
					lnk3.Visible = false;
					lnk4.Visible = false;

					m_SetUp = false;

					return;
				}

				if ( m_Item.AdditionalCtors != null && m_Item.AdditionalCtors.Count > 0 )
				{
					// We have other constructors
					chkUse.Enabled = true;
					chkUse.Checked = Pandora.Profile.Items.UseOptions;
					labNoCtors.Visible = false;

					if ( m_Item.EmptyCtor )
					{
						chkUse.Checked = Pandora.Profile.Items.UseOptions;
					}
					else
					{
						chkUse.Checked = true;
						chkUse.Enabled = false;
					}

					lnk1.Visible = true;
					lnk2.Visible = m_Item.AdditionalCtors.Count > 1;
					lnk3.Visible = m_Item.AdditionalCtors.Count > 2;
					lnk4.Visible = m_Item.AdditionalCtors.Count > 3;

					ViewConstructor( 0 );
				}
				else
				{
					chkUse.Enabled = false;
					labNoCtors.Visible = true;

					lnk1.Visible = false;
					lnk2.Visible = false;
					lnk3.Visible = false;
					lnk4.Visible = false;
				}

				m_SetUp = false;
			}
		}

		/// <summary>
		/// Gets the parameters specified by the constructor
		/// </summary>
		public string Parameters
		{
			get
			{
				string pms = null;

				if ( chkUse.Checked )
				{
					if ( m_Param1 != null && m_Param2 != null )
					{
						pms = string.Format( "{0} {1}", m_Param1.Value, m_Param2.Value );
					}
					else if ( m_Param1 != null )
					{
						pms = m_Param1.Value;
					}
				}

				return pms;
			}
		}

		/// <summary> 
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Component Designer generated code
		/// <summary> 
		/// Required method for Designer support - do not modify 
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.chkUse = new System.Windows.Forms.CheckBox();
			this.lnk1 = new System.Windows.Forms.LinkLabel();
			this.lnk2 = new System.Windows.Forms.LinkLabel();
			this.lnk3 = new System.Windows.Forms.LinkLabel();
			this.lnk4 = new System.Windows.Forms.LinkLabel();
			this.labNoCtors = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// chkUse
			// 
			this.chkUse.Enabled = false;
			this.chkUse.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.chkUse.Location = new System.Drawing.Point(4, 4);
			this.chkUse.Name = "chkUse";
			this.chkUse.Size = new System.Drawing.Size(104, 16);
			this.chkUse.TabIndex = 0;
			this.chkUse.Text = "Common.Options";
			this.chkUse.CheckedChanged += new System.EventHandler(this.chkUse_CheckedChanged);
			// 
			// lnk1
			// 
			this.lnk1.Location = new System.Drawing.Point(108, 4);
			this.lnk1.Name = "lnk1";
			this.lnk1.Size = new System.Drawing.Size(24, 16);
			this.lnk1.TabIndex = 1;
			this.lnk1.TabStop = true;
			this.lnk1.Text = "1";
			this.lnk1.TextAlign = System.Drawing.ContentAlignment.TopCenter;
			this.lnk1.Visible = false;
			this.lnk1.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.lnk1_LinkClicked);
			// 
			// lnk2
			// 
			this.lnk2.Location = new System.Drawing.Point(132, 4);
			this.lnk2.Name = "lnk2";
			this.lnk2.Size = new System.Drawing.Size(24, 16);
			this.lnk2.TabIndex = 2;
			this.lnk2.TabStop = true;
			this.lnk2.Text = "2";
			this.lnk2.TextAlign = System.Drawing.ContentAlignment.TopCenter;
			this.lnk2.Visible = false;
			this.lnk2.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.lnk2_LinkClicked);
			// 
			// lnk3
			// 
			this.lnk3.Location = new System.Drawing.Point(156, 4);
			this.lnk3.Name = "lnk3";
			this.lnk3.Size = new System.Drawing.Size(24, 16);
			this.lnk3.TabIndex = 3;
			this.lnk3.TabStop = true;
			this.lnk3.Text = "3";
			this.lnk3.TextAlign = System.Drawing.ContentAlignment.TopCenter;
			this.lnk3.Visible = false;
			this.lnk3.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.lnk3_LinkClicked);
			// 
			// lnk4
			// 
			this.lnk4.Location = new System.Drawing.Point(180, 4);
			this.lnk4.Name = "lnk4";
			this.lnk4.Size = new System.Drawing.Size(24, 16);
			this.lnk4.TabIndex = 4;
			this.lnk4.TabStop = true;
			this.lnk4.Text = "4";
			this.lnk4.TextAlign = System.Drawing.ContentAlignment.TopCenter;
			this.lnk4.Visible = false;
			this.lnk4.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.lnk4_LinkClicked);
			// 
			// labNoCtors
			// 
			this.labNoCtors.ForeColor = System.Drawing.SystemColors.ControlDarkDark;
			this.labNoCtors.Location = new System.Drawing.Point(4, 28);
			this.labNoCtors.Name = "labNoCtors";
			this.labNoCtors.Size = new System.Drawing.Size(196, 23);
			this.labNoCtors.TabIndex = 5;
			this.labNoCtors.Text = "Items.NoCtor";
			this.labNoCtors.TextAlign = System.Drawing.ContentAlignment.TopCenter;
			this.labNoCtors.Visible = false;
			// 
			// ConstructorsViewer
			// 
			this.Controls.Add(this.labNoCtors);
			this.Controls.Add(this.lnk4);
			this.Controls.Add(this.lnk3);
			this.Controls.Add(this.lnk2);
			this.Controls.Add(this.lnk1);
			this.Controls.Add(this.chkUse);
			this.Name = "ConstructorsViewer";
			this.Size = new System.Drawing.Size(204, 60);
			this.Paint += new System.Windows.Forms.PaintEventHandler(this.ConstructorsViewer_Paint);
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// Draw the border when the control is painting
		/// </summary>
		private void ConstructorsViewer_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
		{
			// Paint the border
			Pen pen = new Pen( SystemColors.ControlDark );
			e.Graphics.DrawRectangle( pen, 0, 0, Width - 1, Height - 1 );
			pen.Dispose();
		}

		/// <summary>
		/// Removes the controls for the current parameters
		/// </summary>
		private void CleanUp()
		{
			if ( m_Param1 != null )
			{
				( m_Param1 as Control ).Visible = false;
				Controls.Remove( m_Param1 as UserControl );
				( m_Param1 as UserControl ).Dispose();
				m_Param1 = null;
			}

			if ( m_Param2 != null )
			{
				( m_Param2 as Control ).Visible = false;
				Controls.Remove( m_Param2 as UserControl );
				( m_Param2 as UserControl ).Dispose();
				m_Param2 = null;
			}
		}

		/// <summary>
		/// Creates a control for a parameter
		/// </summary>
		/// <param name="param">The type of the parameter that will be displayed</param>
		/// <param name="location">The location at which the control should be added</param>
		/// <returns>An IParam object that's been added to the control</returns>
		private IParam AddParam( ParamDef param, Point location )
		{
			UserControl c = null;

			switch ( param.ParamType )
			{
				case BoxPropType.Boolean:

					c = new BoolParam();
					break;

				case BoxPropType.DateTime:

					c = new DateTimeParam();
					break;

				case BoxPropType.Enumeration:

					c = new EnumParam();
					( c as EnumParam ).EnumValues = param.EnumValues;
					( c as EnumParam ).EnumValueChanged += new EventHandler(ConstructorsViewer_EnumValueChanged);
					break;

				case BoxPropType.Map:

					c = new MapParam();
					break;

				case BoxPropType.Numeric:

					c = new NumericParam();
					break;

				case BoxPropType.Other:

					c = new TextParam();
					( c as TextParam ).IsOther = true;
					break;

				case BoxPropType.Point3D:

					c = new Point3DParam();
					break;

				case BoxPropType.Text:

					c = new TextParam();
					break;

				case BoxPropType.TimeSpan:

					c = new TimeSpanParam();
					break;
			}

			( c as IParam ).ParamName = param.Name;
			c.Location = location;
			Controls.Add( c );

			return c as IParam;
		}

		/// <summary>
		/// Views one of the constructors defined on the item
		/// </summary>
		/// <param name="index"></param>
		private void ViewConstructor( int index )
		{
			m_CurrentCtor = m_Item.AdditionalCtors[ index ] as ConstructorDef;

			m_Param1 = AddParam( m_CurrentCtor.Param1, new Point( 4, 20 ) );

			if ( m_CurrentCtor.Param2 != null )
			{
				m_Param2 = AddParam( m_CurrentCtor.Param2, new Point( 104, 20 ) );
			}
		}

		/// <summary>
		/// An enumeration value has changed
		/// </summary>
		private void ConstructorsViewer_EnumValueChanged(object sender, EventArgs e)
		{
			if ( ( sender as IParam ) == m_Param1 )
			{
				int index = m_CurrentCtor.Param1.EnumValues.IndexOf( m_Param1.Value );

				ItemDef def = m_CurrentCtor.List1[ index ] as ItemDef;

				TheBox.Pages.Items.ArtHue = def.Hue;
				TheBox.Pages.Items.ArtIndex = def.Art;
			}

			if ( ( sender as IParam ) == m_Param2 )
			{
				int index = m_CurrentCtor.Param2.EnumValues.IndexOf( m_Param2.Value );

				ItemDef def = m_CurrentCtor.List2[index] as ItemDef;

				TheBox.Pages.Items.ArtHue = def.Hue;
				TheBox.Pages.Items.ArtIndex = def.Art;
			}
		}

		private void lnk1_LinkClicked(object sender, System.Windows.Forms.LinkLabelLinkClickedEventArgs e)
		{
			CleanUp();
			ViewConstructor( 0 );
		}

		private void lnk2_LinkClicked(object sender, System.Windows.Forms.LinkLabelLinkClickedEventArgs e)
		{
			CleanUp();
			ViewConstructor( 1 );
		}

		private void lnk3_LinkClicked(object sender, System.Windows.Forms.LinkLabelLinkClickedEventArgs e)
		{
			CleanUp();
			ViewConstructor( 2 );
		}

		private void lnk4_LinkClicked(object sender, System.Windows.Forms.LinkLabelLinkClickedEventArgs e)
		{
			CleanUp();
			ViewConstructor( 3 );
		}

		private void chkUse_CheckedChanged(object sender, System.EventArgs e)
		{
			if ( ! m_SetUp )
				Pandora.Profile.Items.UseOptions = chkUse.Checked;
		}


		/// <summary>
		/// Specifies if the control allows to change the displayed ItemID
		/// </summary>
		public bool AllowItemIDChange
		{
			get
			{
				if ( m_CurrentCtor == null )
				{
					return false;
				}

				if ( m_CurrentCtor.Param1 != null && m_CurrentCtor.Param1.Name.ToLower() == "itemid" )
				{
					if ( m_Param1 != null )
					{
						return true;
					}
				}

				if ( m_CurrentCtor.Param2 != null && m_CurrentCtor.Param2.Name.ToLower() == "itemid" )
				{
					if ( m_Param2 != null  )
					{
						return true;
					}
				}

				return false;
			}
		}

		/// <summary>
		/// States whether the control can change the hue of the displayed item
		/// </summary>
		public bool AllowHueChange
		{
			get
			{
				if ( m_CurrentCtor.Param1 != null && m_CurrentCtor.Param1.Name.ToLower() == "hue" )
				{
					if ( m_Param1 != null && ( m_Param1 as Control ).Visible )
					{
						return true;
					}
				}

				if ( m_CurrentCtor.Param2 != null && m_CurrentCtor.Param2.Name.ToLower() == "hue" )
				{
					if ( m_Param2 != null && ( m_Param2 as Control ).Visible )
					{
						return true;
					}
				}

				return false;
			}
		}
	}
}
