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CodeDom Assistant

, 21 Sep 2007
Generating CodeDom Code By Parsing C# or VB
codedomassistant_demo.zip
CodeDomAssistant_Demo
CodeDomAssistant.exe
ICSharpCode.NRefactory.dll
RemoteLoader.dll
SciLexer.dll
ScintillaNet.dll
codedomassistant_src.zip
sln.CodeDomAssistant
CodeDomAssistant
bin
Debug
SciLexer.dll
Properties
Settings.settings
NRefactory
NRefactoryASTGenerator
AST
Project
Configuration
Resources
ICSharpCode.NRefactory.snk
Src
Ast
General
Lexer
BuildKeywords.pl
CSharp
Special
VBNet
Parser
CSharp
cs.ATG
Frames
Parser.frame
Scanner.frame
SharpCoco.exe
VBNet
VBNET.ATG
PrettyPrinter
CSharp
VBNet
Visitors
Test
General
Lexer
CSharp
VBNet
Output
CodeDOM
CSharp
VBNet
Parser
Expressions
GlobalScope
Statements
TypeLevel
RemoteLoader
Properties
ScintillaNET
Configuration
Builtin
LexerKeywordListNames
LexerStyleNames
FindReplace
Printing
Properties
Resources
DeleteHS.png
GoToNextMessage - Copy.png
GoToNextMessage.png
GoToPreviousMessage.png
LineColorHS.png
Thumbs.db
ScintillaNET.csproj.vspscc
Snippets
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.ComponentModel;

namespace ScintillaNet
{
	[TypeConverterAttribute(typeof(System.ComponentModel.ExpandableObjectConverter))]
	public class Commands : ScintillaHelperBase
	{
		private Dictionary<KeyBinding, List<BindableCommand>> _boundCommands = new Dictionary<KeyBinding, List<BindableCommand>>();
		private CommandComparer _commandComparer = new CommandComparer();

		//	Hmmm.. This is getting more and more hackyish
		internal bool StopProcessingCommands = false;

		internal Commands(Scintilla scintilla)
			: base(scintilla)
		{

			//	Ha Ha Ha Ha all your commands are belong to us!
			NativeScintilla.ClearAllCmdKeys();

			//	The reason we're doing this is because ScintillaNET is going to own
			//	all the command bindings. There are two reasons for this: #1 it makes
			//	it easier to handle ScintillaNET specific commands, we don't have to
			//	do special logic if its a native command vs. ScintillaNET extension.

			//	#2 Scintilla's built in support for commands binding only allows 1
			//	command per key combination. Our key handling allows for any number
			//	of commands to be bound to a keyboard combination. 

			//	Other future enhancements that I want to do in the future are:
			//	Visual Studioesque Key/Chord commands like Ctrl+D, w

			//	Binding contexts. This is another CodeRush inspired idea where
			//	commands can only execute if a given context is satisfied (or not).
			//	Some examples are "At beginning of line", "In comment", 
			//	"Autocomplete window active", "In Snippet Range".

			//	OK in order for these commands to play nice with each other some of them 
			//	have to have knowledge of each other AND they have to execute in a certain
			//	order. 

			//	Since all the native Scintilla Commands already know how to work together
			//	properly they all have the same order. But our commands have to execute first

			_commandComparer.CommandOrder.Add(BindableCommand.AutoCShow, 100);
			_commandComparer.CommandOrder.Add(BindableCommand.AutoCComplete, 100);
			_commandComparer.CommandOrder.Add(BindableCommand.AutoCCancel, 100);
			_commandComparer.CommandOrder.Add(BindableCommand.DoSnippetCheck, 200);
			_commandComparer.CommandOrder.Add(BindableCommand.AcceptActiveSnippets, 200);
			_commandComparer.CommandOrder.Add(BindableCommand.CancelActiveSnippets, 200);
			_commandComparer.CommandOrder.Add(BindableCommand.NextSnippetRange, 200);
			_commandComparer.CommandOrder.Add(BindableCommand.PreviousSnippetRange, 200);

			AddBinding(Keys.Down , Keys.None, BindableCommand.LineDown);
			AddBinding(Keys.Down , Keys.Shift, BindableCommand.LineDownExtend);
			AddBinding(Keys.Down , Keys.Control, BindableCommand.LineScrollDown);
			AddBinding(Keys.Down , Keys.Alt | Keys.Shift, BindableCommand.LineDownRectExtend);
			AddBinding(Keys.Up , Keys.None, BindableCommand.LineUp);
			AddBinding(Keys.Up , Keys.Shift, BindableCommand.LineUpExtend);
			AddBinding(Keys.Up , Keys.Control, BindableCommand.LineScrollUp);
			AddBinding(Keys.Up , Keys.Alt | Keys.Shift, BindableCommand.LineUpRectExtend);
			AddBinding('[',  Keys.Control, BindableCommand.ParaUp);
			AddBinding('[' , Keys.Control | Keys.Shift, BindableCommand.ParaUpExtend);
			AddBinding(']' , Keys.Control, BindableCommand.ParaDown);
			AddBinding(']' , Keys.Control | Keys.Shift, BindableCommand.ParaDownExtend);
			AddBinding(Keys.Left , Keys.None, BindableCommand.CharLeft);
			AddBinding(Keys.Left , Keys.Shift, BindableCommand.CharLeftExtend);
			AddBinding(Keys.Left , Keys.Control, BindableCommand.WordLeft);
			AddBinding(Keys.Left , Keys.Control | Keys.Shift, BindableCommand.WordLeftExtend);
			AddBinding(Keys.Left , Keys.Alt | Keys.Shift, BindableCommand.CharLeftRectExtend);
			AddBinding(Keys.Right , Keys.None, BindableCommand.CharRight);
			AddBinding(Keys.Right , Keys.Shift, BindableCommand.CharRightExtend);
			AddBinding(Keys.Right , Keys.Control, BindableCommand.WordRight);
			AddBinding(Keys.Right , Keys.Control | Keys.Shift, BindableCommand.WordRightExtend);
			AddBinding(Keys.Right , Keys.Alt | Keys.Shift, BindableCommand.CharRightRectExtend);
			AddBinding('/' , Keys.Control, BindableCommand.WordPartLeftExtend);
			AddBinding('/' , Keys.Control | Keys.Shift, BindableCommand.WordPartLeftExtend);
			AddBinding('\\' , Keys.Control, BindableCommand.WordPartRight);
			AddBinding('\\' , Keys.Control | Keys.Shift, BindableCommand.WordPartRightExtend);
			AddBinding(Keys.Home , Keys.None, BindableCommand.VCHome);
			AddBinding(Keys.Home , Keys.Shift, BindableCommand.VCHomeExtend);
			AddBinding(Keys.Home , Keys.Control, BindableCommand.DocumentStart);
			AddBinding(Keys.Home , Keys.Control | Keys.Shift, BindableCommand.DocumentStartExtend);
			AddBinding(Keys.Home , Keys.Alt, BindableCommand.HomeDisplay);
			AddBinding(Keys.Home , Keys.Alt | Keys.Shift, BindableCommand.VCHomeRectExtend);
			AddBinding(Keys.End , Keys.None, BindableCommand.LineEnd);
			AddBinding(Keys.End , Keys.Shift, BindableCommand.LineEndExtend);
			AddBinding(Keys.End , Keys.Control, BindableCommand.DocumentEnd);
			AddBinding(Keys.End , Keys.Control | Keys.Shift, BindableCommand.DocumentEndExtend);
			AddBinding(Keys.End , Keys.Alt, BindableCommand.LineEndDisplay);
			AddBinding(Keys.End , Keys.Alt | Keys.Shift, BindableCommand.LineEndRectExtend);
			AddBinding(Keys.PageUp , Keys.None, BindableCommand.PageUp);
			AddBinding(Keys.PageUp , Keys.Shift, BindableCommand.PageUpExtend);
			AddBinding(Keys.PageUp , Keys.Alt | Keys.Shift, BindableCommand.PageUpRectExtend);
			AddBinding(Keys.PageDown , Keys.None, BindableCommand.PageDown);
			AddBinding(Keys.PageDown , Keys.Shift, BindableCommand.PageDownExtend);
			AddBinding(Keys.PageDown , Keys.Alt | Keys.Shift, BindableCommand.PageDownRectExtend);
			AddBinding(Keys.Delete , Keys.None, BindableCommand.Clear);
			AddBinding(Keys.Delete , Keys.Shift, BindableCommand.Cut);
			AddBinding(Keys.Delete , Keys.Control, BindableCommand.DelWordRight);
			AddBinding(Keys.Delete , Keys.Control | Keys.Shift, BindableCommand.DelLineRight);
			AddBinding(Keys.Insert , Keys.None, BindableCommand.EditToggleOvertype);
			AddBinding(Keys.Insert , Keys.Shift, BindableCommand.Paste);
			AddBinding(Keys.Insert , Keys.Control, BindableCommand.Copy);
			AddBinding(Keys.Escape , Keys.None, BindableCommand.Cancel);
			AddBinding(Keys.Back , Keys.None, BindableCommand.DeleteBack);
			AddBinding(Keys.Back , Keys.Shift, BindableCommand.DeleteBack);
			AddBinding(Keys.Back , Keys.Control, BindableCommand.DelWordLeft);
			AddBinding(Keys.Back , Keys.Alt, BindableCommand.Undo);
			AddBinding(Keys.Back , Keys.Control | Keys.Shift, BindableCommand.DelLineLeft);
			AddBinding(Keys.Z, Keys.Control, BindableCommand.Undo);
			AddBinding(Keys.Y, Keys.Control, BindableCommand.Redo);
			AddBinding(Keys.X, Keys.Control, BindableCommand.Cut);
			AddBinding(Keys.C, Keys.Control, BindableCommand.Copy);
			AddBinding(Keys.V, Keys.Control, BindableCommand.Paste);
			AddBinding(Keys.A, Keys.Control, BindableCommand.SelectAll);
			AddBinding(Keys.Tab , Keys.None, BindableCommand.Tab);
			AddBinding(Keys.Tab , Keys.Shift, BindableCommand.BackTab);
			AddBinding(Keys.Enter , Keys.None, BindableCommand.NewLine);
			AddBinding(Keys.Enter , Keys.Shift, BindableCommand.NewLine);
			AddBinding(Keys.Add , Keys.Control, BindableCommand.ZoomIn);
			AddBinding(Keys.Subtract , Keys.Control, BindableCommand.ZoomOut);
			AddBinding(Keys.Divide, Keys.Control, BindableCommand.SetZoom);
			AddBinding(Keys.L, Keys.Control, BindableCommand.LineCut);
			AddBinding(Keys.L, Keys.Control | Keys.Shift, BindableCommand.LineDelete);
			AddBinding(Keys.T , Keys.Control | Keys.Shift, BindableCommand.LineCopy);
			AddBinding(Keys.T, Keys.Control, BindableCommand.LineTranspose);
			AddBinding(Keys.D, Keys.Control, BindableCommand.SelectionDuplicate);
			AddBinding(Keys.U, Keys.Control, BindableCommand.LowerCase);
			AddBinding(Keys.U, Keys.Control | Keys.Shift, BindableCommand.UpperCase);

			AddBinding(Keys.Space, Keys.Control, BindableCommand.AutoCShow);
			AddBinding(Keys.Tab, BindableCommand.DoSnippetCheck);
			AddBinding(Keys.Tab, BindableCommand.NextSnippetRange);
			AddBinding(Keys.Tab, Keys.Shift, BindableCommand.PreviousSnippetRange);
			AddBinding(Keys.Escape, BindableCommand.CancelActiveSnippets);
			AddBinding(Keys.Enter, BindableCommand.AcceptActiveSnippets);

			AddBinding(Keys.P, Keys.Control, BindableCommand.Print);
			AddBinding(Keys.P, Keys.Control | Keys.Shift, BindableCommand.PrintPreview);

			AddBinding(Keys.F, Keys.Control, BindableCommand.ShowFind);
			AddBinding(Keys.H, Keys.Control, BindableCommand.ShowReplace);
			AddBinding(Keys.F3, BindableCommand.FindNext);
			AddBinding(Keys.F3, Keys.Shift, BindableCommand.FindPrevious);
			AddBinding(Keys.I, Keys.Control, BindableCommand.IncrementalSearch);

			AddBinding(Keys.Q, Keys.Control, BindableCommand.LineComment);
			AddBinding(Keys.Q, Keys.Control | Keys.Shift, BindableCommand.LineUncomment);

			AddBinding('-', Keys.Control, BindableCommand.DocumentNavigateBackward);
			AddBinding('-', Keys.Control | Keys.Shift, BindableCommand.DocumentNavigateForward);

			AddBinding(Keys.J, Keys.Control, BindableCommand.ShowSnippetList);

			AddBinding(Keys.M, Keys.Control, BindableCommand.DropMarkerDrop);
			AddBinding(Keys.Escape, BindableCommand.DropMarkerCollect);
		}

		internal bool ShouldSerialize()
		{
			return ShouldSerializeAllowDuplicateBindings();
		}

		#region AllowDuplicateBindings
		private bool _allowDuplicateBindings = false;
		public bool AllowDuplicateBindings
		{
			get
			{
				return _allowDuplicateBindings;
			}
			set
			{
				_allowDuplicateBindings = value;
			}
		}

		private bool ShouldSerializeAllowDuplicateBindings()
		{
			return _allowDuplicateBindings;
		}

		private void ResetAllowDuplicateBindings()
		{
			_allowDuplicateBindings = false;
		}

		#endregion

		#region AddBinding

		public void AddBinding(Keys shortcut, Keys modifiers, BindableCommand command)
		{
			KeyBinding kb = new KeyBinding(shortcut, modifiers);
			if (!_boundCommands.ContainsKey(kb))
				_boundCommands.Add(kb, new List<BindableCommand>());

			List<BindableCommand> l = _boundCommands[kb];
			if (_allowDuplicateBindings || !l.Contains(command))
				l.Add(command);
		}

		public void AddBinding(Keys shortcut, BindableCommand command)
		{
			AddBinding(shortcut, Keys.None, command);
		}

		public void AddBinding(char shortcut, BindableCommand command)
		{
			AddBinding(Utilities.GetKeys(shortcut), Keys.None, command);
		}

		public void AddBinding(char shortcut, Keys modifiers, BindableCommand command)
		{
			AddBinding(Utilities.GetKeys(shortcut), modifiers, command);
		}

		#endregion
		
		#region RemoveBinding
		public void RemoveBinding(Keys shortcut, Keys modifiers, BindableCommand command)
		{
			KeyBinding kb = new KeyBinding(shortcut, modifiers);
			if (!_boundCommands.ContainsKey(kb))
				return;

			_boundCommands[kb].Remove(command);
		}

		public void RemoveBinding(Keys shortcut, BindableCommand command)
		{
			RemoveBinding(shortcut, Keys.None, command);
		}

		public void RemoveBinding(char shortcut, BindableCommand command)
		{
			RemoveBinding(Utilities.GetKeys(shortcut), Keys.None, command);
		}

		public void RemoveBinding(char shortcut, Keys modifiers, BindableCommand command)
		{
			RemoveBinding(Utilities.GetKeys(shortcut), modifiers, command);
		}

		public void RemoveBinding(Keys shortcut, Keys modifiers)
		{
			_boundCommands.Remove(new KeyBinding(shortcut, modifiers));
		}

		public void RemoveBinding(Keys shortcut)
		{
			RemoveBinding(shortcut, Keys.None);
		}

		public void RemoveBinding(char shortcut)
		{
			RemoveBinding(Utilities.GetKeys(shortcut), Keys.None);
		}

		public void RemoveBinding(char shortcut, Keys modifiers)
		{
			RemoveBinding(Utilities.GetKeys(shortcut), modifiers);
		}

		#endregion

		#region RemoveAllBindings
		public void RemoveAllBindings()
		{
			_boundCommands.Clear();
		} 
		#endregion

		#region GetCommands
		private List<BindableCommand> GetCommands(Keys shortcut, Keys modifiers)
		{
			KeyBinding kb = new KeyBinding(shortcut, modifiers);
			if (!_boundCommands.ContainsKey(kb))
				return new List<BindableCommand>();

			return _boundCommands[kb];
		}

		private List<BindableCommand> GetCommands(Keys shortcut)
		{
			return GetCommands(shortcut, Keys.None);
		}

		private List<BindableCommand> GetCommands(char shortcut)
		{
			return GetCommands(Utilities.GetKeys(shortcut), Keys.None);
		}

		private List<BindableCommand> GetCommands(char shortcut, Keys modifiers)
		{
			return GetCommands(Utilities.GetKeys(shortcut), modifiers);
		}

		#endregion

		#region GetKeyBindings
		public List<KeyBinding> GetKeyBindings(BindableCommand command)
		{
			List<KeyBinding> ret = new List<KeyBinding>();
			foreach (KeyValuePair<KeyBinding, List<BindableCommand>> item in _boundCommands)
			{
				if (item.Value.Contains(command))
					ret.Add(item.Key);
			}

			return ret;
		} 
		#endregion

		public bool Execute(BindableCommand command)
		{
			if ((int)command < 10000)
			{
				NativeScintilla.SendMessageDirect((uint)command, IntPtr.Zero, IntPtr.Zero);
				return true;
			}

			switch (command)
			{
				case BindableCommand.AutoCShow:
					Scintilla.AutoComplete.Show();
					return true;

				case BindableCommand.AcceptActiveSnippets:
					return Scintilla.Snippets.AcceptActiveSnippets();

				case BindableCommand.CancelActiveSnippets:
					return Scintilla.Snippets.CancelActiveSnippets();

				case BindableCommand.DoSnippetCheck:
					return Scintilla.Snippets.DoSnippetCheck();

				case BindableCommand.NextSnippetRange:
					return Scintilla.Snippets.NextSnippetRange();

				case BindableCommand.PreviousSnippetRange:
					return Scintilla.Snippets.PreviousSnippetRange();

				case BindableCommand.DropMarkerCollect:
					Scintilla.DropMarkers.Collect();
					return false;

				case BindableCommand.DropMarkerDrop:
					Scintilla.DropMarkers.Drop();
					return true;

				case BindableCommand.Print:
					Scintilla.Printing.Print();
					return true;

				case BindableCommand.PrintPreview:
					Scintilla.Printing.PrintPreview();
					return true;

				case BindableCommand.ShowFind:
					Scintilla.FindReplace.ShowFind();
					return true;

				case BindableCommand.ShowReplace:
					Scintilla.FindReplace.ShowReplace();
					return true;

				case BindableCommand.FindNext:
					Scintilla.FindReplace.Window.FindNext();
					return true;

				case BindableCommand.FindPrevious:
					Scintilla.FindReplace.Window.FindPrevious();
					return true;

				case BindableCommand.IncrementalSearch:
					Scintilla.FindReplace.IncrementalSearch();
					return true;

				case BindableCommand.LineComment:
					Scintilla.Lexing.LineComment();
					return true;

				case BindableCommand.LineUncomment:
					Scintilla.Lexing.LineUncomment();
					return true;

				case BindableCommand.DocumentNavigateForward:
					Scintilla.DocumentNavigation.NavigateForward();
					return true;

				case BindableCommand.DocumentNavigateBackward:
					Scintilla.DocumentNavigation.NavigateBackward();
					return true;

				case BindableCommand.ToggleLineComment:
					Scintilla.Lexing.ToggleLineComment();
					return true;

				case BindableCommand.StreamComment:
					Scintilla.Lexing.StreamComment();
					return true;
				
				case BindableCommand.ShowSnippetList:
					Scintilla.Snippets.ShowSnippetList();
					return true;
			}

			return false;
		}

		internal bool ProcessKey(KeyEventArgs e)
		{
			StopProcessingCommands = false;

			KeyBinding kb = new KeyBinding(e.KeyCode, e.Modifiers);
			if (!_boundCommands.ContainsKey(kb))
				return false;

			List<BindableCommand> cmds = _boundCommands[kb];
			if (cmds.Count == 0)
				return false;

			cmds.Sort(_commandComparer);

			bool ret = false;
			foreach (BindableCommand cmd in cmds)
			{
				ret |= Execute(cmd);

				if (StopProcessingCommands)
					return ret;
			}

			return ret;
		}

		private class CommandComparer : IComparer<BindableCommand>
		{
			private Dictionary<BindableCommand, int> _commandOrder = new Dictionary<BindableCommand, int>();
			public Dictionary<BindableCommand, int> CommandOrder
			{
				get
				{
					return _commandOrder;
				}
				set
				{
					_commandOrder = value;
				}
			}

			private int getCommandOrder(BindableCommand cmd)
			{
				if (!_commandOrder.ContainsKey(cmd))
					return 0;
				return _commandOrder[cmd];
			}

			#region IComparer<BindableCommand> Members

			public int Compare(BindableCommand x, BindableCommand y)
			{
				return getCommandOrder(y).CompareTo(getCommandOrder(x));
			}

			#endregion
		}

	}

	public struct KeyBinding
	{
		private Keys _keycode;
		public Keys KeyCode
		{
			get
			{
				return _keycode;
			}
			set
			{
				_keycode = value;
			}
		}

		private Keys _modifiers;
		public Keys Modifiers
		{
			get
			{
				return _modifiers;
			}
			set
			{
				_modifiers = value;
			}
		}

		/// <summary>
		/// Initializes a new instance of the KeyBinding structure.
		/// </summary>
		/// <param name="@char"></param>
		/// <param name="modifiers"></param>
		public KeyBinding(Keys keycode, Keys modifiers)
		{
			_keycode = keycode;
			_modifiers = modifiers;
		}

		public override string ToString()
		{
			return ((int)_keycode).ToString() + ((int)_modifiers).ToString();
		}

		public override int GetHashCode()
		{
			return ToString().GetHashCode();
		}

		public override bool Equals(object obj)
		{
			if (!(obj is KeyBinding))
				return false;

			KeyBinding kb = (KeyBinding)obj;

			return _keycode == kb._keycode && _modifiers == kb._modifiers;
		}
	}


}

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About the Author

raygilbert
Web Developer
Australia Australia
No Biography provided

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Web04 | 2.8.150123.1 | Last Updated 21 Sep 2007
Article Copyright 2007 by raygilbert
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