bufferoptions.cs

c#精彩编程百例（源代码）

//  BufferOptions.cs
//  Copyright (c) 2001 Mike Krueger
//
//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

using System;
using System.Drawing;
using System.Reflection;
using System.Xml;

using SharpDevelop.Tool.Data;

namespace SharpDevelop.Internal.Text {
	
	public enum LineViewerStyle {
		None,
		FullRow
	}
		
	public class BufferOptions : ICloneable, XmlConvertable
	{
		bool autoinsertcurlybracket = true;
		bool showeolmarkers   = false;
		bool showlinenumbers  = true;
		bool showinvalidlines = true;
		
		bool showtabs         = false;
		bool showspaces       = false;
		
		bool showvruler       = false;
		bool showhruler       = false;
		int  hrulerrow        = 80;
		
		int  tabindent        = 4;
		bool tabstospaces     = false;
		
		bool hidemousecursor  = false;
		
		bool cursorbehindeol  = false;
		
		bool useantialiasfont = false;
		bool showerrors       = true;
		
		bool autoinserttemplates = true;
		
		LineViewerStyle lineviewerstyle;
		IndentStyle     indent    = IndentStyle.Smart;
		
		public event EventHandler OptionChanged;
		
		public bool AutoInsertCurlyBracket {
			get {
				return autoinsertcurlybracket;
			}
			set {
				autoinsertcurlybracket = value;
				OnChanged();
			}
		}
		
		public bool AutoInsertTemplates {
			get {
				return autoinserttemplates;
			}
			set {
				autoinserttemplates = value;
				OnChanged();
			}
		}
		
		public Font DefaultFont {
			get {
				return FontContainer.DefaultFont;
			}
			set {
				FontContainer.DefaultFont = value;
				OnChanged();
			}
		}
		
			
		public bool ShowErrors {
			get {
				return showerrors;
			}
			set {
				showerrors = value;
				OnChanged();
			}
		}
			
		public bool UseAntiAliasFont {
			get {
				return useantialiasfont;
			}
			set {
				useantialiasfont = value;
				OnChanged();
			}
		}

		public bool ShowVRuler {
			get {
				return showvruler;
			}
			set {
				showvruler = value;
				OnChanged();
			}
		}
		public LineViewerStyle LineViewerStyle {
			get {
				return lineviewerstyle;
			}
			set {
				lineviewerstyle = value;
				OnChanged();
			}
		}
		
		
		public bool CursorBehindEOL {
			get {
				return cursorbehindeol;
			}
			set {
				cursorbehindeol = value;
				OnChanged();
			}
		}
		
		public bool HideMouseCursor {
			get {
				return hidemousecursor;
			}
			set {
				hidemousecursor = value;
				OnChanged();
			}
		}
		
		public bool TabsToSpaces {
			get {
				return tabstospaces;
			}
			set {
				tabstospaces = value;
				OnChanged();
			}
		}
		
		public int TabIndent {
			get {
				return tabindent;
			}
			set {
				tabindent = value;
				OnChanged();
			}
		}
		
		public int HRulerRrow {
			get {
				return hrulerrow;
			}
			set {
				hrulerrow = value;
				OnChanged();
			}
		}
		
		public bool ShowHRuler {
			get {
				return showhruler;
			}
			set {
				showhruler = value;
				OnChanged();
			}
		}
		
		public IndentStyle IndentStyle {
			get {
				return indent;
			}
			set {
				indent = value;
				OnChanged();
			}
		}
		
		public bool ShowSpaces {
			get {
				return showspaces;
			}
			set {
				showspaces = value;
				OnChanged();
			}
		}
		
		public bool ShowTabs {
			get {
				return showtabs;
			}
			set {
				showtabs = value;
				OnChanged();
			}
		}
		
		public bool ShowEOLMarkers {
			get {
				return showeolmarkers;
			}
			set {
				showeolmarkers = value;
				OnChanged();
			}
		}
		
		public bool ShowInvalidLines {
			get {
				return showinvalidlines;
			}
			set {
				showinvalidlines = value;
				OnChanged();
			}
		}
		
		public bool ShowLineNumbers {
			get {
				return showlinenumbers;
			}
			set {
				showlinenumbers = value;
				OnChanged();
			}
		}
		public BufferOptions()
		{
			
		}
		public BufferOptions(XmlElement element)
		{
			if (element == null)
				throw new ArgumentNullException("element can't be null");
			PropertyInfo[] properties = typeof(BufferOptions).GetProperties();
			
			foreach (PropertyInfo property in properties) {
				XmlElement el = element[property.Name];
				object     obj = null;
				if (property.PropertyType == typeof(bool))
					obj = Boolean.Parse(el.InnerText);
				else
				if (property.PropertyType == typeof(int))
					obj = Int32.Parse(el.InnerText);
				else
				if (property.PropertyType == typeof(LineViewerStyle))
					obj = Enum.Parse(typeof(LineViewerStyle), el.InnerText);
				else
				if (property.PropertyType == typeof(IndentStyle))
					obj = Enum.Parse(typeof(IndentStyle), el.InnerText);
				else
				if (property.PropertyType == typeof(Font)) {
					// TODO : font reading
					string txt = el.InnerText.Substring(30); // hack to read courier font size
					string nr  = "";
					for (int i = 0; i < txt.Length;++i)
						if (Char.IsDigit(txt[i]))
							nr += txt[i];
						else
							break;
					Console.WriteLine(nr);
					DefaultFont = new Font("Courier New", Int32.Parse(nr));
					continue;
				}
				else
					throw new ApplicationException("Unknown type in BufferOptions!");
				property.SetValue(this, obj, null);
			}
		}
		
		void OnChanged()
		{
			if (OptionChanged != null)
				OptionChanged(this, null);
		}
		
		public object Clone()
		{
			return MemberwiseClone();
		}
		
		
		public object     FromXmlElement(XmlElement element)
		{
			return new BufferOptions(element);
		}
		
		public XmlElement ToXmlElement(XmlDocument doc)
		{
			XmlElement el = doc.CreateElement("BufferOptions");
			
			PropertyInfo[] properties = typeof(BufferOptions).GetProperties();
			foreach (PropertyInfo property in properties) {
				XmlElement child = doc.CreateElement(property.Name);
				child.InnerText = property.GetValue(this, null).ToString();
				el.AppendChild(child);
			}
			return el;
		}
	}
}