using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Globalization;

namespace BizHawk.MultiClient
{
	/// <summary>
	/// A winform designed to search through ram values
	/// </summary>
	public partial class RamSearch : Form
	{
		public const string ADDRESS = "AddressColumn";
		public const string VALUE = "ValueColumn";
		public const string PREV = "PrevColumn";
		public const string CHANGES = "ChangesColumn";
		public const string DIFF = "DiffColumn";

		private readonly Dictionary<string, int> DefaultColumnWidths = new Dictionary<string, int>
		{
			{ ADDRESS, 60 },
			{ VALUE, 59 },
			{ PREV, 59 },
			{ CHANGES, 55 },
			{ DIFF, 59 },
		};

		private string CurrentFileName = String.Empty;

		private RamSearchEngine Searches;
		private RamSearchEngine.Settings Settings;

		private int defaultWidth;       //For saving the default size of the dialog, so the user can restore if desired
		private int defaultHeight;
		private string _sortedColumn = "";
		private bool _sortReverse = false;
		private bool forcePreviewClear = false;
		private bool autoSearch = false;

		private bool dropdown_dontfire = false; //Used as a hack to get around lame .net dropdowns, there's no way to set their index without firing the selectedindexchanged event!

		public const int MaxDetailedSize = (1024 * 1024); //1mb, semi-arbituary decision, sets the size to check for and automatically switch to fast mode for the user
		public const int MaxSupportedSize = (1024 * 1024 * 64); //64mb, semi-arbituary decision, sets the maximum size ram search will support (as it will crash beyond this)

		#region Initialize, Load, and Save

		public RamSearch()
		{
			SetStyle(ControlStyles.AllPaintingInWmPaint, true);
			SetStyle(ControlStyles.UserPaint, true);
			SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
			InitializeComponent();
			WatchListView.QueryItemText += ListView_QueryItemText;
			WatchListView.QueryItemBkColor += ListView_QueryItemBkColor;
			WatchListView.VirtualMode = true;
			Closing += (o, e) => SaveConfigSettings();

			_sortedColumn = "";
			_sortReverse = false;

			Settings = new RamSearchEngine.Settings();
			Searches = new RamSearchEngine(Settings);

			TopMost = Global.Config.RamSearchAlwaysOnTop;
			
		}

		private void HardSetDisplayTypeDropDown(Watch.DisplayType type)
		{
			foreach (var item in DisplayTypeDropdown.Items)
			{
				if (Watch.DisplayTypeToString(type) == item.ToString())
				{
					DisplayTypeDropdown.SelectedItem = item;
				}
			}
		}

		private void HardSetSizeDropDown(Watch.WatchSize size)
		{
			switch (size)
			{
				case Watch.WatchSize.Byte:
					SizeDropdown.SelectedIndex = 0;
					break;
				case Watch.WatchSize.Word:
					SizeDropdown.SelectedIndex = 1;
					break;
				case Watch.WatchSize.DWord:
					SizeDropdown.SelectedIndex = 2;
					break;
			}
		}

		private void RamSearch_Load(object sender, EventArgs e)
		{
			dropdown_dontfire = true;
			LoadConfigSettings();
			SpecificValueBox.ByteSize = Settings.Size;
			SpecificValueBox.Type = Settings.Type;

			MessageLabel.Text = String.Empty;
			SpecificAddressBox.MaxLength = IntHelpers.GetNumDigits(Global.Emulator.MainMemory.Size);
			HardSetSizeDropDown(Settings.Size);
			PopulateTypeDropDown();
			HardSetDisplayTypeDropDown(Settings.Type);
			DoDomainSizeCheck();
			SetReboot(false);

			SpecificValueBox.ResetText();
			SpecificAddressBox.ResetText();
			NumberOfChangesBox.ResetText();
			DifferenceBox.ResetText();
			DifferentByBox.ResetText();

			dropdown_dontfire = false;

			NewSearch();
		}

		private void ListView_QueryItemBkColor(int index, int column, ref Color color)
		{
			if (Searches.Count > 0 && column == 0)
			{
				Color nextColor = Color.White;

				bool isCheat = Global.CheatList.IsActive(Settings.Domain, Searches[index].Address.Value);
				bool isWeeded = Global.Config.RamSearchPreviewMode && !forcePreviewClear && Searches.Preview(Searches[index].Address.Value);

				if (isCheat)
				{
					if (isWeeded)
					{
						nextColor = Color.Lavender;
					}
					else
					{
						nextColor = Color.LightCyan;
					}
				}
				else
				{
					if (isWeeded)
					{
						nextColor = Color.Pink;
					}
				}

				if (color != nextColor)
				{
					color = nextColor;
				}
			}
		}

		private void ListView_QueryItemText(int index, int column, out string text)
		{
			text = "";

			if (index >= Searches.Count)
			{
				return;
			}

			string columnName = WatchListView.Columns[column].Name;
			switch (columnName)
			{
				case ADDRESS:
					text = Searches[index].AddressString;
					break;
				case VALUE:
					text = Searches[index].ValueString;
					break;
				case PREV:
					text = Searches[index].PreviousStr;
					break;
				case CHANGES:
					text = Searches[index].ChangeCount.ToString();
					break;
				case DIFF:
					text = Searches[index].Diff;
					break;
			}
		}

		private void LoadConfigSettings()
		{
			//Size and Positioning
			defaultWidth = Size.Width;     //Save these first so that the user can restore to its original size
			defaultHeight = Size.Height;

			if (Global.Config.RamSearchSaveWindowPosition && Global.Config.RamSearchWndx >= 0 && Global.Config.RamSearchWndy >= 0)
			{
				Location = new Point(Global.Config.RamSearchWndx, Global.Config.RamSearchWndy);
			}

			if (Global.Config.RamSearchWidth >= 0 && Global.Config.RamSearchHeight >= 0)
			{
				Size = new Size(Global.Config.RamSearchWidth, Global.Config.RamSearchHeight);
			}

			TopMost = Global.Config.RamSearchAlwaysOnTop;

			LoadColumnInfo();
		}

		#endregion

		#region Public

		public void UpdateValues()
		{
			if (Searches.Count > 0)
			{
				Searches.Update();

				if (autoSearch)
				{
					DoSearch();
				}

				forcePreviewClear = false;
				WatchListView.Refresh();
			}
		}

		public void Restart()
		{
			if (!IsHandleCreated || IsDisposed) return;
			
			Settings.Domain = Global.Emulator.MainMemory;
			MessageLabel.Text = "Search restarted";
			DoDomainSizeCheck();
			NewSearch();
		}

		public void SaveConfigSettings()
		{
			SaveColumnInfo();

			Global.Config.RamSearchWndx = Location.X;
			Global.Config.RamSearchWndy = Location.Y;
			Global.Config.RamSearchWidth = Right - Left;
			Global.Config.RamSearchHeight = Bottom - Top;
		}

		public void NewSearch()
		{
			var compareTo = Searches.CompareTo;
			var compareVal = Searches.CompareValue;
			var differentBy = Searches.DifferentBy;

			Searches = new RamSearchEngine(Settings, compareTo, compareVal, differentBy);
			Searches.Start();
			if (Global.Config.RamSearchAlwaysExcludeRamWatch)
			{
				RemoveRamWatchesFromList();
			}

			SetTotal();
			WatchListView.ItemCount = Searches.Count;
			ToggleSearchDependentToolBarItems();
			SetReboot(false);
			MessageLabel.Text = String.Empty;
		}

		public void NextCompareTo(bool reverse = false)
		{
			List<RadioButton> radios = new List<RadioButton>();
			foreach (Control control in CompareToBox.Controls)
			{
				if (control is RadioButton)
				{
					radios.Add(control as RadioButton);
				}
			}

			radios = radios.OrderBy(x => x.TabIndex).ToList();

			var selected = radios.FirstOrDefault(x => x.Checked);
			int index = radios.IndexOf(selected);

			if (reverse)
			{
				if (index == 0)
				{
					index = radios.Count - 1;
				}
				else
				{
					index--;
				}
			}
			else
			{
				index++;
				if (index >= radios.Count)
				{
					index = 0;
				}
			}

			radios[index].Checked = true;
			MethodInfo mi = radios[index].GetType().GetMethod("OnClick", BindingFlags.Instance | BindingFlags.NonPublic);
			mi.Invoke(radios[index], new object[] { new EventArgs() });
		}

		public void NextOperator(bool reverse = false)
		{
			List<RadioButton> radios = new List<RadioButton>();
			foreach (Control control in ComparisonBox.Controls)
			{
				if (control is RadioButton)
				{
					radios.Add(control as RadioButton);
				}
			}

			radios = radios.OrderBy(x => x.TabIndex).ToList();

			var selected = radios.FirstOrDefault(x => x.Checked);
			int index = radios.IndexOf(selected);

			if (reverse)
			{
				if (index == 0)
				{
					index = radios.Count - 1;
				}
				else
				{
					index--;
				}
			}
			else
			{
				index++;
				if (index >= radios.Count)
				{
					index = 0;
				}
			}

			radios[index].Checked = true;
			MethodInfo mi = radios[index].GetType().GetMethod("OnClick", BindingFlags.Instance | BindingFlags.NonPublic);
			mi.Invoke(radios[index], new object[] { new EventArgs() });
		}

		#endregion

		#region Private

		private void ToggleSearchDependentToolBarItems()
		{
			DoSearchToolButton.Enabled =
				CopyValueToPrevToolBarItem.Enabled =
				Searches.Count > 0;
			UpdateUndoToolBarButtons();
		}

		private int? CompareToValue
		{
			get
			{
				if (PreviousValueRadio.Checked)
				{
					return null;
				}
				else if (SpecificValueRadio.Checked)
				{
					return SpecificValueBox.ToRawInt();
				}
				else if (SpecificAddressRadio.Checked)
				{
					return SpecificAddressBox.ToRawInt();
				}
				else if (NumberOfChangesRadio.Checked)
				{
					return NumberOfChangesBox.ToRawInt();
				}
				else if (DifferenceRadio.Checked)
				{
					return DifferenceBox.ToRawInt();
				}
				else
				{
					return null;
				}
			}
		}

		private int? DifferentByValue
		{
			get
			{
				if (DifferentByRadio.Checked)
				{
					return DifferentByBox.ToRawInt();
				}
				else
				{
					return null;
				}
			}
		}

		public void DoSearch()
		{
			Searches.CompareValue = CompareToValue;
			Searches.DifferentBy = DifferentByValue;
			int removed = Searches.DoSearch();
			SetTotal();
			WatchListView.ItemCount = Searches.Count;
			SetRemovedMessage(removed);
			ToggleSearchDependentToolBarItems();
			forcePreviewClear = true;
		}

		private List<int> SelectedIndices
		{
			get
			{
				var indices = new List<int>();
				foreach (int index in WatchListView.SelectedIndices)
				{
					indices.Add(index);
				}
				return indices;
			}
		}

		private List<Watch> SelectedWatches
		{
			get
			{
				var selected = new List<Watch>();
				ListView.SelectedIndexCollection indices = WatchListView.SelectedIndices;
				if (indices.Count > 0)
				{
					foreach (int index in indices)
					{
						selected.Add(Searches[index]);
					}
				}
				return selected;
			}
		}

		private void SetRemovedMessage(int val)
		{
			MessageLabel.Text = val.ToString() + " address" + (val != 1 ? "es" : String.Empty) + " removed";
		}

		private void SetTotal()
		{
			TotalSearchLabel.Text = String.Format("{0:n0}", Searches.Count) + " addresses";
		}

		private void SetDomainLabel()
		{
			MemDomainLabel.Text = Searches.Domain.Name;
		}

		private void LoadFileFromRecent(string path)
		{
			FileInfo file = new FileInfo(path);

			if (!file.Exists)
			{
				Global.Config.RecentSearches.HandleLoadError(path);
			}
			else
			{
				LoadWatchFile(file, append: false);
			}
		}

		private void SetPlatformAndMemoryDomainLabel()
		{
			MemDomainLabel.Text = Global.Emulator.SystemId + " " + Searches.Domain.Name;
		}

		private void SetMemoryDomain(int pos)
		{
			if (pos < Global.Emulator.MemoryDomains.Count)  //Sanity check
			{
				Settings.Domain = Global.Emulator.MemoryDomains[pos];
				SetDomainLabel();
				SetReboot(true);
				SpecificAddressBox.MaxLength = IntHelpers.GetNumDigits(Settings.Domain.Size);
				DoDomainSizeCheck();
			}
		}

		private void DoDomainSizeCheck()
		{
			if (Settings.Domain.Size >= MaxDetailedSize 
				&& Settings.Mode == RamSearchEngine.Settings.SearchMode.Detailed)
			{
				Settings.Mode = RamSearchEngine.Settings.SearchMode.Fast;
				SetReboot(true);
				MessageLabel.Text = "Large domain, switching to fast mode";
			}
		}

		private void LoadColumnInfo()
		{
			WatchListView.Columns.Clear();
			ToolHelpers.AddColumn(WatchListView, ADDRESS, true, GetColumnWidth(ADDRESS));
			ToolHelpers.AddColumn(WatchListView, VALUE, true, GetColumnWidth(VALUE));
			ToolHelpers.AddColumn(WatchListView, PREV, Global.Config.RamSearchShowPrevColumn, GetColumnWidth(PREV));
			ToolHelpers.AddColumn(WatchListView, CHANGES, Global.Config.RamSearchShowChangeColumn, GetColumnWidth(CHANGES));
			ToolHelpers.AddColumn(WatchListView, DIFF, Global.Config.RamSearchShowDiffColumn, GetColumnWidth(DIFF));

			ColumnPositions();
		}

		private void ColumnPositions()
		{
			List<KeyValuePair<string, int>> Columns =
				Global.Config.RamSearchColumnIndexes
					.Where(x => WatchListView.Columns.ContainsKey(x.Key))
					.OrderBy(x => x.Value).ToList();

			for (int i = 0; i < Columns.Count; i++)
			{
				if (WatchListView.Columns.ContainsKey(Columns[i].Key))
				{
					WatchListView.Columns[Columns[i].Key].DisplayIndex = i;
				}
			}
		}

		private void SaveColumnInfo()
		{
			if (WatchListView.Columns[ADDRESS] != null)
			{
				Global.Config.RamSearchColumnIndexes[ADDRESS] = WatchListView.Columns[ADDRESS].DisplayIndex;
				Global.Config.RamSearchColumnWidths[ADDRESS] = WatchListView.Columns[ADDRESS].Width;
			}

			if (WatchListView.Columns[VALUE] != null)
			{
				Global.Config.RamSearchColumnIndexes[VALUE] = WatchListView.Columns[VALUE].DisplayIndex;
				Global.Config.RamSearchColumnWidths[VALUE] = WatchListView.Columns[VALUE].Width;
			}

			if (WatchListView.Columns[PREV] != null)
			{
				Global.Config.RamSearchColumnIndexes[PREV] = WatchListView.Columns[PREV].DisplayIndex;
				Global.Config.RamSearchColumnWidths[PREV] = WatchListView.Columns[PREV].Width;
			}

			if (WatchListView.Columns[CHANGES] != null)
			{
				Global.Config.RamSearchColumnIndexes[CHANGES] = WatchListView.Columns[CHANGES].DisplayIndex;
				Global.Config.RamSearchColumnWidths[CHANGES] = WatchListView.Columns[CHANGES].Width;
			}

			if (WatchListView.Columns[DIFF] != null)
			{
				Global.Config.RamSearchColumnIndexes[DIFF] = WatchListView.Columns[DIFF].DisplayIndex;
				Global.Config.RamSearchColumnWidths[DIFF] = WatchListView.Columns[DIFF].Width;
			}
		}

		private int GetColumnWidth(string columnName)
		{
			var width = Global.Config.RamSearchColumnWidths[columnName];
			if (width == -1)
			{
				width = DefaultColumnWidths[columnName];
			}

			return width;
		}

		private void DoDisplayTypeClick(Watch.DisplayType type)
		{
			if (Settings.Type != type && !String.IsNullOrEmpty(SpecificValueBox.Text))
			{
				SpecificValueBox.Text = "0";
			}
			SpecificValueBox.Type = Settings.Type = type;
			Searches.SetType(type);

			dropdown_dontfire = true;
			DisplayTypeDropdown.SelectedItem = Watch.DisplayTypeToString(type);
			dropdown_dontfire = false;
			SpecificValueBox.Type = type;
			WatchListView.Refresh();
		}

		private void SetPreviousStype(Watch.PreviousType type)
		{
			Settings.PreviousType = type;
			Searches.SetPreviousType(type);
		}

		private void SetSize(Watch.WatchSize size)
		{
			SpecificValueBox.ByteSize = Settings.Size = size;
			if (!String.IsNullOrEmpty(SpecificAddressBox.Text))
			{
				SpecificAddressBox.Text = "0";
			}

			if (!String.IsNullOrEmpty(SpecificValueBox.Text))
			{
				SpecificValueBox.Text = "0";
			}

			if (!Watch.AvailableTypes(size).Contains(Settings.Type))
			{
				Settings.Type = Watch.AvailableTypes(size)[0];
			}

			dropdown_dontfire = true;
			switch(size)
			{
				case Watch.WatchSize.Byte:
					SizeDropdown.SelectedIndex = 0;
					break;
				case Watch.WatchSize.Word:
					SizeDropdown.SelectedIndex = 1;
					break;
				case Watch.WatchSize.DWord:
					SizeDropdown.SelectedIndex = 2;
					break;
			}
			PopulateTypeDropDown();
			dropdown_dontfire = false;
			SpecificValueBox.Type = Settings.Type;
			SetReboot(true);
		}

		private void PopulateTypeDropDown()
		{
			string previous = DisplayTypeDropdown.SelectedItem != null ? DisplayTypeDropdown.SelectedItem.ToString() : String.Empty;
			string next = String.Empty;

			DisplayTypeDropdown.Items.Clear();
			var types = Watch.AvailableTypes(Settings.Size);
			foreach (var type in types)
			{
				string typeStr = Watch.DisplayTypeToString(type);
				DisplayTypeDropdown.Items.Add(typeStr);
				if (previous == typeStr)
				{
					next = typeStr;
				}
			}

			if (!String.IsNullOrEmpty(next))
			{
				DisplayTypeDropdown.SelectedItem = next;
			}
			else
			{
				DisplayTypeDropdown.SelectedIndex = 0;
			}
		}

		private void SetComparisonOperator(RamSearchEngine.ComparisonOperator op)
		{
			Searches.Operator = op;
		}

		private void SetCompareTo(RamSearchEngine.Compare comp)
		{
			Searches.CompareTo = comp;
		}

		private void SetCompareValue(int? value)
		{
			Searches.CompareValue = value;
		}

		private void SetReboot(bool rebootNeeded)
		{
			RebootToolBarSeparator.Visible =
					RebootToolbarButton.Visible =
					rebootNeeded;
		}

		private void SetToDetailedMode()
		{
			Settings.Mode = RamSearchEngine.Settings.SearchMode.Detailed;
			NumberOfChangesRadio.Enabled = true;
			NumberOfChangesBox.Enabled = true;
			DifferenceRadio.Enabled = true;
			DifferentByBox.Enabled = true;
			ClearChangeCountsToolBarItem.Enabled = true;
			WatchListView.Columns[CHANGES].Width = Global.Config.RamSearchColumnWidths[CHANGES];
			SetReboot(true);
		}

		private void SetToFastMode()
		{
			Settings.Mode = RamSearchEngine.Settings.SearchMode.Fast;

			if (Settings.PreviousType == Watch.PreviousType.LastFrame || Settings.PreviousType == Watch.PreviousType.LastChange)
			{
				SetPreviousStype(Watch.PreviousType.LastSearch);
			}

			NumberOfChangesRadio.Enabled = false;
			NumberOfChangesBox.Enabled = false;
			NumberOfChangesBox.Text = String.Empty;
			ClearChangeCountsToolBarItem.Enabled = false;

			if (NumberOfChangesRadio.Checked || DifferenceRadio.Checked)
			{
				PreviousValueRadio.Checked = true;
			}

			Global.Config.RamSearchColumnWidths[CHANGES] = WatchListView.Columns[CHANGES].Width;
			WatchListView.Columns[CHANGES].Width = 0;
			SetReboot(true);
		}

		private void RemoveAddresses()
		{
			if (SelectedIndices.Count > 0)
			{
				SetRemovedMessage(SelectedIndices.Count);

				var addresses = new List<int>();
				foreach (int index in SelectedIndices)
				{
					addresses.Add(Searches[index].Address.Value);
				}
				Searches.RemoveRange(addresses);

				WatchListView.ItemCount = Searches.Count;
				SetTotal();
				WatchListView.SelectedIndices.Clear();
			}
		}

		public void LoadWatchFile(FileInfo file, bool append, bool truncate = false)
		{
			if (file != null)
			{
				if (!truncate)
				{
					CurrentFileName = file.FullName;
				}

				WatchList watches = new WatchList(Settings.Domain);
				watches.Load(file.FullName, append);
				List<int> addresses = watches.Where(x => !x.IsSeparator).Select(x => x.Address.Value).ToList();

				if (truncate)
				{
					SetRemovedMessage(addresses.Count);
					Searches.RemoveRange(addresses);
				}
				else
				{
					Searches.AddRange(addresses, append);
					MessageLabel.Text = file.Name + " loaded";
				}

				WatchListView.ItemCount = Searches.Count;
				SetTotal();
				Global.Config.RecentSearches.Add(file.FullName);

				if (!append && !truncate)
				{
					Searches.ClearHistory();
				}

				ToggleSearchDependentToolBarItems();
			}
		}

		private void AddToRamWatch()
		{
			if (SelectedIndices.Count > 0)
			{
				Global.MainForm.LoadRamWatch(true);
				for (int x = 0; x < SelectedIndices.Count; x++)
				{
					Global.MainForm.RamWatch1.AddWatch(Searches[SelectedIndices[x]]);
				}

				if (Global.Config.RamSearchAlwaysExcludeRamWatch)
				{
					RemoveRamWatchesFromList();
				}
			}
		}

		private Point GetPromptPoint()
		{
			return PointToScreen(new Point(WatchListView.Location.X, WatchListView.Location.Y));
		}

		private void PokeAddress()
		{
			if (SelectedIndices.Count > 0)
			{
				Global.Sound.StopSound();
				var poke = new RamPoke();

				var watches = new List<Watch>();
				for (int i = 0; i < SelectedIndices.Count; i++)
				{
					watches.Add(Searches[SelectedIndices[i]]);
				}

				poke.SetWatch(watches);
				poke.InitialLocation = GetPromptPoint();
				poke.ShowDialog();
				UpdateValues();
				Global.Sound.StartSound();
			}
		}

		private void RemoveRamWatchesFromList()
		{
			Searches.RemoveRange(Global.MainForm.RamWatch1.AddressList);
			WatchListView.ItemCount = Searches.Count;
			SetTotal();
		}

		private void UpdateUndoToolBarButtons()
		{
			UndoToolBarButton.Enabled = Searches.CanUndo;
			RedoToolBarItem.Enabled = Searches.CanRedo;
		}

		private string GetColumnValue(string name, int index)
		{
			switch (name)
			{
				default:
					return String.Empty;
				case ADDRESS:
					return Searches[index].AddressString;
				case VALUE:
					return Searches[index].ValueString;
				case PREV:
					return Searches[index].PreviousStr;
				case CHANGES:
					return Searches[index].ChangeCount.ToString();
				case DIFF:
					return Searches[index].Diff;
			}
		}

		private void ToggleAutoSearch()
		{
			autoSearch ^= true;
			AutoSearchCheckBox.Checked = autoSearch;
			DoSearchToolButton.Enabled =
				SearchButton.Enabled =
				!autoSearch;
		}

		private void GoToSpecifiedAddress()
		{
			WatchListView.SelectedIndices.Clear();
			InputPrompt i = new InputPrompt { Text = "Go to Address" };
			i._Location = GetPromptPoint();
			i.SetMessage("Enter a hexadecimal value");
			Global.Sound.StopSound();
			i.ShowDialog();
			Global.Sound.StartSound();

			if (i.UserOK)
			{
				if (InputValidate.IsValidHexNumber(i.UserText))
				{
					int addr = int.Parse(i.UserText, NumberStyles.HexNumber);
					WatchListView.SelectItem(addr, true);
					WatchListView.ensureVisible();
				}
			}
		}

		#endregion

		#region Winform Events

		#region File

		private void FileSubMenu_DropDownOpened(object sender, EventArgs e)
		{
			SaveMenuItem.Enabled = !String.IsNullOrWhiteSpace(CurrentFileName);
		}

		private void RecentSubMenu_DropDownOpened(object sender, EventArgs e)
		{
			RecentSubMenu.DropDownItems.Clear();
			RecentSubMenu.DropDownItems.AddRange(Global.Config.RecentSearches.GenerateRecentMenu(LoadFileFromRecent));
		}

		private void OpenMenuItem_Click(object sender, EventArgs e)
		{
			LoadWatchFile(
				WatchList.GetFileFromUser(String.Empty),
				sender == AppendFileMenuItem,
				sender == TruncateFromFileMenuItem
				);
		}

		private void SaveMenuItem_Click(object sender, EventArgs e)
		{
			if (!String.IsNullOrWhiteSpace(CurrentFileName))
			{
				WatchList watches = new WatchList(Settings.Domain);
				watches.CurrentFileName = CurrentFileName;
				for (int i = 0; i < Searches.Count; i++)
				{
					watches.Add(Searches[i]);
				}

				if (watches.Save())
				{
					CurrentFileName = watches.CurrentFileName;
					MessageLabel.Text = Path.GetFileName(CurrentFileName) + " saved";
				}
			}
		}

		private void SaveAsMenuItem_Click(object sender, EventArgs e)
		{
			WatchList watches = new WatchList(Settings.Domain);
			watches.CurrentFileName = CurrentFileName;
			for (int i = 0; i < Searches.Count; i++)
			{
				watches.Add(Searches[i]);
			}

			if (watches.SaveAs())
			{
				CurrentFileName = watches.CurrentFileName;
				MessageLabel.Text = Path.GetFileName(CurrentFileName) + " saved";
				Global.Config.RecentSearches.Add(watches.CurrentFileName);
			}
		}

		private void CloseMenuItem_Click(object sender, EventArgs e)
		{
			Close();
		}

		#endregion

		#region Settings

		private void SettingsSubMenu_DropDownOpened(object sender, EventArgs e)
		{
			CheckMisalignedMenuItem.Checked = Settings.CheckMisAligned;
			BigEndianMenuItem.Checked = Settings.BigEndian;
		}

		private void ModeSubMenu_DropDownOpened(object sender, EventArgs e)
		{
			DetailedMenuItem.Checked = Settings.Mode == RamSearchEngine.Settings.SearchMode.Detailed;
			FastMenuItem.Checked = Settings.Mode == RamSearchEngine.Settings.SearchMode.Fast;
		}

		private void MemoryDomainsSubMenu_DropDownOpened(object sender, EventArgs e)
		{
			MemoryDomainsSubMenu.DropDownItems.Clear();
			MemoryDomainsSubMenu.DropDownItems.AddRange(ToolHelpers.GenerateMemoryDomainMenuItems(SetMemoryDomain, Searches.Domain.Name, MaxSupportedSize));
		}

		private void SizeSubMenu_DropDownOpened(object sender, EventArgs e)
		{
			_1ByteMenuItem.Checked = Settings.Size == Watch.WatchSize.Byte;
			_2ByteMenuItem.Checked = Settings.Size == Watch.WatchSize.Word;
			_4ByteMenuItem.Checked = Settings.Size == Watch.WatchSize.DWord;
		}

		private void DisplayTypeSubMenu_DropDownOpened(object sender, EventArgs e)
		{
			DisplayTypeSubMenu.DropDownItems.Clear();

			foreach (var type in Watch.AvailableTypes(Settings.Size))
			{
				var item = new ToolStripMenuItem()
				{
					Name = type.ToString() + "ToolStripMenuItem",
					Text = Watch.DisplayTypeToString(type),
					Checked = Settings.Type == type,
				};
				item.Click += (o, ev) => DoDisplayTypeClick(type);

				DisplayTypeSubMenu.DropDownItems.Add(item);
			}
		}

		private void DefinePreviousValueSubMenu_DropDownOpened(object sender, EventArgs e)
		{
			Previous_LastSearchMenuItem.Checked = false;
			PreviousFrameMenuItem.Checked = false;
			Previous_OriginalMenuItem.Checked = false;

			switch (Settings.PreviousType)
			{
				default:
				case Watch.PreviousType.LastSearch:
					Previous_LastSearchMenuItem.Checked = true;
					break;
				case Watch.PreviousType.LastFrame:
					PreviousFrameMenuItem.Checked = true;
					break;
				case Watch.PreviousType.Original:
					Previous_OriginalMenuItem.Checked = true;
					break;
			}

			if (Settings.Mode == RamSearchEngine.Settings.SearchMode.Fast)
			{
				PreviousFrameMenuItem.Enabled = false;
			}
			else
			{
				PreviousFrameMenuItem.Enabled = true;
			}
		}

		private void DetailedMenuItem_Click(object sender, EventArgs e)
		{
			SetToDetailedMode();
		}

		private void FastMenuItem_Click(object sender, EventArgs e)
		{
			SetToFastMode();
		}

		private void _1ByteMenuItem_Click(object sender, EventArgs e)
		{
			SetSize(Watch.WatchSize.Byte);
		}

		private void _2ByteMenuItem_Click(object sender, EventArgs e)
		{
			SetSize(Watch.WatchSize.Word);
		}

		private void _4ByteMenuItem_Click(object sender, EventArgs e)
		{
			SetSize(Watch.WatchSize.DWord);
		}

		private void CheckMisalignedMenuItem_Click(object sender, EventArgs e)
		{
			Settings.CheckMisAligned ^= true;
			SetReboot(true);
		}

		private void Previous_LastFrameMenuItem_Click(object sender, EventArgs e)
		{
			SetPreviousStype(Watch.PreviousType.LastFrame);
		}

		private void Previous_LastSearchMenuItem_Click(object sender, EventArgs e)
		{
			SetPreviousStype(Watch.PreviousType.LastSearch);
		}

		private void Previous_OriginalMenuItem_Click(object sender, EventArgs e)
		{
			SetPreviousStype(Watch.PreviousType.Original);
		}

		private void BigEndianMenuItem_Click(object sender, EventArgs e)
		{
			Settings.BigEndian ^= true;
			Searches.SetEndian(Settings.BigEndian);
		}

		#endregion

		#region Search

		private void SearchSubMenu_DropDownOpened(object sender, EventArgs e)
		{
			ClearChangeCountsMenuItem.Enabled = Settings.Mode == RamSearchEngine.Settings.SearchMode.Detailed;

			RemoveMenuItem.Enabled =
				AddToRamWatchMenuItem.Enabled =
				PokeAddressMenuItem.Enabled =
				FreezeAddressMenuItem.Enabled =
				SelectedIndices.Any();

			UndoMenuItem.Enabled =
				ClearUndoMenuItem.Enabled =
				Searches.CanUndo;

			RedoMenuItem.Enabled = Searches.CanRedo;
		}

		private void NewSearchMenuMenuItem_Click(object sender, EventArgs e)
		{
			NewSearch();
		}

		private void SearchMenuItem_Click(object sender, EventArgs e)
		{
			DoSearch();
		}

		private void UndoMenuItem_Click(object sender, EventArgs e)
		{
			if (Searches.CanUndo)
			{
				Searches.Undo();
				UpdateUndoToolBarButtons();
			}
		}

		private void RedoMenuItem_Click(object sender, EventArgs e)
		{
			if (Searches.CanRedo)
			{
				Searches.Redo();
				UpdateUndoToolBarButtons();
			}
		}

		private void CopyValueToPrevMenuItem_Click(object sender, EventArgs e)
		{
			Searches.SetPrevousToCurrent();
			WatchListView.Refresh();
		}

		private void ClearChangeCountsMenuItem_Click(object sender, EventArgs e)
		{
			Searches.ClearChangeCounts();
			WatchListView.Refresh();
		}

		private void RemoveMenuItem_Click(object sender, EventArgs e)
		{
			RemoveAddresses();
		}

		private void GoToAddressMenuItem_Click(object sender, EventArgs e)
		{
			GoToSpecifiedAddress();
		}

		private void AddToRamWatchMenuItem_Click(object sender, EventArgs e)
		{
			AddToRamWatch();
		}

		private void PokeAddressMenuItem_Click(object sender, EventArgs e)
		{
			PokeAddress();
		}

		private void FreezeAddressMenuItem_Click(object sender, EventArgs e)
		{
			bool allCheats = true;
			foreach (var watch in SelectedWatches)
			{
				if (!watch.IsSeparator)
				{
					if (!Global.CheatList.IsActive(watch.Domain, watch.Address.Value))
					{
						allCheats = false;
					}
				}
			}

			if (allCheats)
			{
				ToolHelpers.UnfreezeAddress(SelectedWatches);
			}
			else
			{
				ToolHelpers.FreezeAddress(SelectedWatches);
			}
		}

		private void ClearUndoMenuItem_Click(object sender, EventArgs e)
		{
			Searches.ClearHistory();
			UpdateUndoToolBarButtons();
		}

		#endregion

		#region Options

		private void OptionsSubMenu_DropDownOpened(object sender, EventArgs e)
		{
			AutoloadDialogMenuItem.Checked = Global.Config.RecentSearches.AutoLoad;
			SaveWinPositionMenuItem.Checked = Global.Config.RamSearchSaveWindowPosition;
			ExcludeRamWatchMenuItem.Checked = Global.Config.RamSearchAlwaysExcludeRamWatch;
			UseUndoHistoryMenuItem.Checked = Searches.UndoEnabled;
			PreviewModeMenuItem.Checked = Global.Config.RamSearchPreviewMode;
			AlwaysOnTopMenuItem.Checked = Global.Config.RamSearchAlwaysOnTop;
			AutoSearchMenuItem.Checked = autoSearch;
		}

		private void PreviewModeMenuItem_Click(object sender, EventArgs e)
		{
			Global.Config.RamSearchPreviewMode ^= true;
		}

		private void AutoSearchMenuItem_Click(object sender, EventArgs e)
		{
			ToggleAutoSearch();
		}

		private void ExcludeRamWatchMenuItem_Click(object sender, EventArgs e)
		{
			Global.Config.RamSearchAlwaysExcludeRamWatch ^= true;
			if (Global.Config.RamSearchAlwaysExcludeRamWatch)
			{
				RemoveRamWatchesFromList();
			}
		}

		private void UseUndoHistoryMenuItem_Click(object sender, EventArgs e)
		{
			Searches.UndoEnabled ^= true;
		}

		private void AutoloadDialogMenuItem_Click(object sender, EventArgs e)
		{
			Global.Config.RecentSearches.AutoLoad ^= true;
		}

		private void SaveWinPositionMenuItem_Click(object sender, EventArgs e)
		{
			Global.Config.RamSearchSaveWindowPosition ^= true;
		}

		private void AlwaysOnTopMenuItem_Click(object sender, EventArgs e)
		{
			Global.Config.RamSearchAlwaysOnTop ^= true;
			TopMost = Global.Config.RamSearchAlwaysOnTop;
		}

		private void RestoreDefaultsMenuItem_Click(object sender, EventArgs e)
		{
			Size = new Size(defaultWidth, defaultHeight);

			Global.Config.RamSearchColumnIndexes = new Dictionary<string, int>
				{
					{ "AddressColumn", 0 },
					{ "ValueColumn", 1 },
					{ "PrevColumn", 2 },
					{ "ChangesColumn", 3 },
					{ "DiffColumn", 4 },
					{ "DomainColumn", 5 },
					{ "NotesColumn", 6 },
				};

			ColumnPositions();

			Global.Config.RamSearchShowChangeColumn = true;
			Global.Config.RamSearchShowPrevColumn = true;
			Global.Config.RamSearchShowDiffColumn = false;

			WatchListView.Columns[ADDRESS].Width = DefaultColumnWidths[ADDRESS];
			WatchListView.Columns[VALUE].Width = DefaultColumnWidths[VALUE];
			//WatchListView.Columns[PREV].Width = DefaultColumnWidths[PREV];
			WatchListView.Columns[CHANGES].Width = DefaultColumnWidths[CHANGES];
			//WatchListView.Columns[DIFF].Width = DefaultColumnWidths[DIFF];

			Global.Config.RamSearchSaveWindowPosition = true;
			Global.Config.RamSearchAlwaysOnTop = TopMost = false;

			LoadColumnInfo();
		}

		#endregion

		#region Columns

		private void ColumnsMenuItem_DropDownOpened(object sender, EventArgs e)
		{
			ShowPreviousMenuItem.Checked = Global.Config.RamSearchShowPrevColumn;
			ShowChangesMenuItem.Checked = Global.Config.RamSearchShowChangeColumn;
			ShowDiffMenuItem.Checked = Global.Config.RamSearchShowDiffColumn;
		}

		private void ShowPreviousMenuItem_Click(object sender, EventArgs e)
		{
			Global.Config.RamSearchShowPrevColumn ^= true;
			SaveColumnInfo();
			LoadColumnInfo();
		}

		private void ShowChangesMenuItem_Click(object sender, EventArgs e)
		{
			Global.Config.RamSearchShowChangeColumn ^= true;
			SaveColumnInfo();
			LoadColumnInfo();
		}

		private void ShowDiffMenuItem_Click(object sender, EventArgs e)
		{
			Global.Config.RamSearchShowDiffColumn ^= true;
			SaveColumnInfo();
			LoadColumnInfo();
		}

		#endregion

		#region ContextMenu and Toolbar

		private void contextMenuStrip1_Opening(object sender, CancelEventArgs e)
		{
			DoSearchContextMenuItem.Enabled = Searches.Count > 0;

			RemoveContextMenuItem.Visible =
				AddToRamWatchContextMenuItem.Visible =
				PokeContextMenuItem.Visible =
				FreezeContextMenuItem.Visible =
				ContextMenuSeparator2.Visible =

				ViewInHexEditorContextMenuItem.Visible =
				SelectedIndices.Count > 0;

			UnfreezeAllContextMenuItem.Visible = Global.CheatList.ActiveCount > 0;

			ContextMenuSeparator3.Visible = (SelectedIndices.Count > 0) || (Global.CheatList.ActiveCount > 0);

			bool allCheats = true;
			foreach (int index in SelectedIndices)
			{
				if (!Global.CheatList.IsActive(Settings.Domain, Searches[index].Address.Value))
				{
					allCheats = false;
				}
			}

			if (allCheats)
			{
				FreezeContextMenuItem.Text = "&Unfreeze address";
				FreezeContextMenuItem.Image = Properties.Resources.Unfreeze;
			}
			else
			{
				FreezeContextMenuItem.Text = "&Freeze address";
				FreezeContextMenuItem.Image = Properties.Resources.Freeze;
			}
		}

		private void UnfreezeAllContextMenuItem_Click(object sender, EventArgs e)
		{
			ToolHelpers.UnfreezeAll();
		}

		private void ViewInHexEditorContextMenuItem_Click(object sender, EventArgs e)
		{
			if (SelectedWatches.Any())
			{
				ToolHelpers.ViewInHexEditor(Searches.Domain, SelectedWatches.Select(x => x.Address.Value));
			}
		}

		private void ClearPreviewContextMenuItem_Click(object sender, EventArgs e)
		{
			forcePreviewClear = true;
			WatchListView.Refresh();
		}

		private void SizeDropdown_SelectedIndexChanged(object sender, EventArgs e)
		{
			if (dropdown_dontfire)
			{
				return;
			}

			switch (SizeDropdown.SelectedIndex)
			{
				case 0:
					SetSize(Watch.WatchSize.Byte);
					break;
				case 1:
					SetSize(Watch.WatchSize.Word);
					break;
				case 2:
					SetSize(Watch.WatchSize.DWord);
					break;
			}
		}

		private void DisplayTypeDropdown_SelectedIndexChanged(object sender, EventArgs e)
		{
			if (!dropdown_dontfire)
			{
				DoDisplayTypeClick(Watch.StringToDisplayType(DisplayTypeDropdown.SelectedItem.ToString()));
			}
		}

		#endregion

		#region Compare To Box

		private void PreviousValueRadio_Click(object sender, EventArgs e)
		{
			SpecificValueBox.Enabled = false;
			SpecificAddressBox.Enabled = false;
			NumberOfChangesBox.Enabled = false;
			DifferenceBox.Enabled = false;
			SetCompareTo(RamSearchEngine.Compare.Previous);
		}

		private void SpecificValueRadio_Click(object sender, EventArgs e)
		{
			SpecificValueBox.Enabled = true;
			if (String.IsNullOrWhiteSpace(SpecificValueBox.Text))
			{
				SpecificAddressBox.ResetText();
			}
			Searches.CompareValue = SpecificValueBox.ToRawInt();

			if (this.Focused)
			{
				SpecificValueBox.Focus();
			}
			
			SpecificAddressBox.Enabled = false;
			NumberOfChangesBox.Enabled = false;
			DifferenceBox.Enabled = false;
			SetCompareTo(RamSearchEngine.Compare.SpecificValue);
		}

		private void SpecificAddressRadio_Click(object sender, EventArgs e)
		{
			SpecificValueBox.Enabled = false;
			SpecificAddressBox.Enabled = true;
			if (String.IsNullOrWhiteSpace(SpecificAddressBox.Text))
			{
				SpecificAddressBox.ResetText();
				
			}
			Searches.CompareValue = SpecificAddressBox.ToRawInt();

			if (this.Focused)
			{
				SpecificAddressBox.Focus();
			}

			NumberOfChangesBox.Enabled = false;
			DifferenceBox.Enabled = false;
			SetCompareTo(RamSearchEngine.Compare.SpecificAddress);
		}

		private void NumberOfChangesRadio_Click(object sender, EventArgs e)
		{
			SpecificValueBox.Enabled = false;
			SpecificAddressBox.Enabled = false;
			NumberOfChangesBox.Enabled = true;
			if (String.IsNullOrWhiteSpace(NumberOfChangesBox.Text))
			{
				NumberOfChangesBox.ResetText();
			}

			Searches.CompareValue = NumberOfChangesBox.ToRawInt();

			if (this.Focused)
			{
				NumberOfChangesBox.Focus();
			}

			DifferenceBox.Enabled = false;
			SetCompareTo(RamSearchEngine.Compare.Changes);
		}

		private void DifferenceRadio_Click(object sender, EventArgs e)
		{
			SpecificValueBox.Enabled = false;
			SpecificAddressBox.Enabled = false;
			NumberOfChangesBox.Enabled = false;
			DifferenceBox.Enabled = true;
			if (String.IsNullOrWhiteSpace(DifferenceBox.Text))
			{
				DifferenceBox.ResetText();
			}
			Searches.CompareValue = DifferenceBox.ToRawInt();

			if (this.Focused)
			{
				DifferenceBox.Focus();
			}

			SetCompareTo(RamSearchEngine.Compare.Difference);
		}

		private void CompareToValue_TextChanged(object sender, EventArgs e)
		{
			SetCompareValue((sender as INumberBox).ToRawInt());
		}

		#endregion

		#region Comparison Operator Box

		private void EqualToRadio_Click(object sender, EventArgs e)
		{
			DifferentByBox.Enabled = false;
			SetComparisonOperator(RamSearchEngine.ComparisonOperator.Equal);
		}

		private void NotEqualToRadio_Click(object sender, EventArgs e)
		{
			DifferentByBox.Enabled = false;
			SetComparisonOperator(RamSearchEngine.ComparisonOperator.NotEqual);
		}

		private void LessThanRadio_Click(object sender, EventArgs e)
		{
			DifferentByBox.Enabled = false;
			SetComparisonOperator(RamSearchEngine.ComparisonOperator.LessThan);
		}

		private void GreaterThanRadio_Click(object sender, EventArgs e)
		{
			DifferentByBox.Enabled = false;
			SetComparisonOperator(RamSearchEngine.ComparisonOperator.GreaterThan);
		}

		private void LessThanOrEqualToRadio_Click(object sender, EventArgs e)
		{
			DifferentByBox.Enabled = false;
			SetComparisonOperator(RamSearchEngine.ComparisonOperator.LessThanEqual);
		}

		private void GreaterThanOrEqualToRadio_Click(object sender, EventArgs e)
		{
			DifferentByBox.Enabled = false;
			SetComparisonOperator(RamSearchEngine.ComparisonOperator.GreaterThanEqual);
		}

		private void DifferentByRadio_Click(object sender, EventArgs e)
		{
			DifferentByBox.Enabled = true;
			SetComparisonOperator(RamSearchEngine.ComparisonOperator.DifferentBy);
			if (String.IsNullOrWhiteSpace(DifferentByBox.Text))
			{
				DifferentByBox.ResetText();
			}
			Searches.DifferentBy = DifferenceBox.ToRawInt();

			if (this.Focused)
			{
				DifferentByBox.Focus();
			}
		}

		private void DifferentByBox_TextChanged(object sender, EventArgs e)
		{
			if (!String.IsNullOrWhiteSpace(DifferentByBox.Text))
			{
				Searches.DifferentBy = DifferentByBox.ToRawInt();
			}
			else
			{
				Searches.DifferentBy = null;
			}
		}

		#endregion

		#region ListView Events

		private void WatchListView_KeyDown(object sender, KeyEventArgs e)
		{
			if (e.KeyCode == Keys.Delete && !e.Control && !e.Alt && !e.Shift)
			{
				RemoveAddresses();
			}
			else if (e.KeyCode == Keys.A && e.Control && !e.Alt && !e.Shift) //Select All
			{
				for (int x = 0; x < Searches.Count; x++)
				{
					WatchListView.SelectItem(x, true);
				}
			}
			else if (e.KeyCode == Keys.C && e.Control && !e.Alt && !e.Shift) //Copy
			{
				if (SelectedIndices.Count > 0)
				{
					StringBuilder sb = new StringBuilder();
					foreach (int index in SelectedIndices)
					{
						foreach (ColumnHeader column in WatchListView.Columns)
						{
							sb.Append(GetColumnValue(column.Name, index)).Append('\t');
						}
						sb.Remove(sb.Length - 1, 1);
						sb.AppendLine();
					}

					if (sb.Length > 0)
					{
						Clipboard.SetDataObject(sb.ToString());
					}
				}
			}
			else if (e.KeyCode == Keys.Escape && !e.Control && !e.Alt && !e.Shift)
			{
				WatchListView.SelectedIndices.Clear();
			}
		}

		private void WatchListView_SelectedIndexChanged(object sender, EventArgs e)
		{
			RemoveToolBarItem.Enabled =
				AddToRamWatchToolBarItem.Enabled =
				PokeAddressToolBarItem.Enabled =
				FreezeAddressToolBarItem.Enabled =
				SelectedIndices.Any();
		}

		private void WatchListView_ColumnReordered(object sender, ColumnReorderedEventArgs e)
		{
			Global.Config.RamSearchColumnIndexes[ADDRESS] = WatchListView.Columns[ADDRESS].DisplayIndex;
			Global.Config.RamSearchColumnIndexes[VALUE] = WatchListView.Columns[VALUE].DisplayIndex;
			Global.Config.RamSearchColumnIndexes[PREV] = WatchListView.Columns[ADDRESS].DisplayIndex;
			Global.Config.RamSearchColumnIndexes[CHANGES] = WatchListView.Columns[CHANGES].DisplayIndex;
			Global.Config.RamSearchColumnIndexes[DIFF] = WatchListView.Columns[DIFF].DisplayIndex;
		}

		private void WatchListView_Enter(object sender, EventArgs e)
		{
			WatchListView.Refresh();
		}

		private void WatchListView_ColumnClick(object sender, ColumnClickEventArgs e)
		{
			var column = WatchListView.Columns[e.Column];
			if (column.Name != _sortedColumn)
			{
				_sortReverse = false;
			}

			Searches.Sort(column.Name, _sortReverse);

			_sortedColumn = column.Name;
			_sortReverse ^= true;
			WatchListView.Refresh();
		}

		private void WatchListView_MouseDoubleClick(object sender, MouseEventArgs e)
		{
			if (SelectedIndices.Count > 0)
			{
				AddToRamWatch();
			}
		}

		#endregion

		#region Dialog Events

		private void NewRamSearch_Activated(object sender, EventArgs e)
		{
			WatchListView.Refresh();
		}

		private void NewRamSearch_DragEnter(object sender, DragEventArgs e)
		{
			e.Effect = e.Data.GetDataPresent(DataFormats.FileDrop) ? DragDropEffects.Copy : DragDropEffects.None;
		}

		private void NewRamSearch_DragDrop(object sender, DragEventArgs e)
		{
			string[] filePaths = (string[])e.Data.GetData(DataFormats.FileDrop);
			if (Path.GetExtension(filePaths[0]) == (".wch"))
			{
				var file = new FileInfo(filePaths[0]);
				if (file.Exists)
				{
					LoadWatchFile(file, false);
				}
			}
		}

		#endregion

		#endregion
	}
}