SD2-453: ported CustomLineManager from Fidalgo

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@560 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Libraries/ICSharpCode.TextEditor/Project/ICSharpCode.TextEditor.csproj

@@ -46,6 +46,8 @@
     <Compile Include="Src\Document\ISegment.cs" />
     <Compile Include="Src\Document\TextUtilities.cs" />
     <Compile Include="Src\Document\BookmarkManager\BookmarkManager.cs" />
+    <Compile Include="Src\Document\CustomLineManager\CustomLineManager.cs" />
+    <Compile Include="Src\Document\CustomLineManager\ICustomLineManager.cs" />
     <Compile Include="Src\Document\BookmarkManager\BookmarkManagerMemento.cs" />
     <Compile Include="Src\Document\FormattingStrategy\DefaultFormattingStrategy.cs" />
     <Compile Include="Src\Document\FormattingStrategy\IFormattingStrategy.cs" />

src/Libraries/ICSharpCode.TextEditor/Project/Src/Document/CustomLineManager/CustomLineManager.cs

@@ -0,0 +1,217 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Ivo Kovacka" email="ivok@internet.sk"/>
+//     <version value="$version"/>
+// </file>
+
+using System;
+using System.Collections;
+using System.Drawing;
+
+namespace ICSharpCode.TextEditor.Document
+{
+	/// <summary>
+	/// This class is used to store a pair of lineNr and its color
+	/// </summary>
+	public class CustomLine
+	{
+		public int    StartLineNr;
+		public int    EndLineNr;
+		public Color  Color;
+		public bool   ReadOnly;
+
+		public CustomLine(int lineNr, Color customColor, bool readOnly)
+		{
+			this.StartLineNr = this.EndLineNr = lineNr;
+			this.Color  = customColor;
+			this.ReadOnly = readOnly;
+		}
+		
+		public CustomLine(int startLineNr, int endLineNr, Color customColor, bool readOnly)
+		{
+			this.StartLineNr = startLineNr;
+			this.EndLineNr = endLineNr;
+			this.Color  = customColor;
+			this.ReadOnly = readOnly;
+		}
+	}
+		
+	/// <summary>
+	/// This class handles the bookmarks for a buffer
+	/// </summary>
+	public class CustomLineManager : ICustomLineManager
+	{
+		ArrayList lines = new ArrayList();
+		
+		/// <summary>
+		/// Creates a new instance of <see cref="CustomLineManager"/>
+		/// </summary>
+		public CustomLineManager(ILineManager lineTracker)
+		{
+			lineTracker.LineCountChanged += new LineManagerEventHandler(MoveIndices);
+		}
+
+		/// <value>
+		/// Contains all custom lines 
+		/// </value>
+		public ArrayList CustomLines {
+			get {
+				return lines;
+			}
+		}
+		
+		/// <remarks>
+		/// Returns the Color if the line <code>lineNr</code> has custom bg color
+		/// otherwise returns <code>defaultColor</code>
+		/// </remarks>
+		public Color GetCustomColor(int lineNr, Color defaultColor)
+		{
+			foreach(CustomLine line in lines)
+				if (line.StartLineNr <= lineNr && line.EndLineNr >= lineNr)
+					return line.Color;
+			return defaultColor;
+		}
+		
+		/// <remarks>
+		/// Returns the ReadOnly if the line <code>lineNr</code> is custom 
+		/// otherwise returns <code>default</code>
+		/// </remarks>
+		public bool IsReadOnly(int lineNr, bool defaultReadOnly)
+		{
+			foreach(CustomLine line in lines)
+				if (line.StartLineNr <= lineNr && line.EndLineNr >= lineNr)
+					return line.ReadOnly;
+			return defaultReadOnly;
+		}
+		
+		/// <remarks>
+		/// Returns true if <code>selection</code> is read only
+		/// </remarks>
+		public bool IsReadOnly(ISelection selection, bool defaultReadOnly)
+		{
+			int startLine = selection.StartPosition.Y;
+			int endLine = selection.EndPosition.Y;
+			foreach (CustomLine customLine in lines) {
+				if (customLine.ReadOnly == false)
+					continue;
+				if (startLine < customLine.StartLineNr && endLine < customLine.StartLineNr)
+					continue;
+				if (startLine > customLine.EndLineNr && endLine > customLine.EndLineNr)
+					continue;
+				return true;
+			}
+			return defaultReadOnly;
+		}
+		
+		/// <remarks>
+		/// Clears all custom lines
+		/// </remarks>
+		public void Clear()
+		{
+			OnBeforeChanged();
+			lines.Clear();
+			OnChanged();
+		}
+		
+		/// <remarks>
+		/// Is fired before the change
+		/// </remarks>
+		public event EventHandler BeforeChanged;
+		
+		/// <remarks>
+		/// Is fired after the change
+		/// </remarks>
+		public event EventHandler Changed;
+		
+	
+		
+		void OnChanged() 
+		{
+			if (Changed != null) {
+				Changed(this, null);
+			}
+		}
+		void OnBeforeChanged() 
+		{
+			if (BeforeChanged != null) {
+				BeforeChanged(this, null);
+			}
+		}
+			
+		/// <remarks>
+		/// Set Custom Line at the line <code>lineNr</code>
+		/// </remarks>
+		public void AddCustomLine(int lineNr, Color customColor, bool readOnly)
+		{
+			OnBeforeChanged();
+			lines.Add(new CustomLine(lineNr, customColor, readOnly));
+			OnChanged();
+		}
+
+		/// <remarks>
+		/// Add Custom Lines from the line <code>startLineNr</code> to the line <code>endLineNr</code>
+		/// </remarks>
+		public void AddCustomLine(int startLineNr, int endLineNr, Color customColor, bool readOnly)
+		{
+			OnBeforeChanged();
+			lines.Add(new CustomLine(startLineNr, endLineNr, customColor, readOnly));
+			OnChanged();
+		}
+
+		/// <remarks>
+		/// Remove Custom Line at the line <code>lineNr</code>
+		/// </remarks>
+		public void RemoveCustomLine(int lineNr)
+		{
+			for (int i = 0; i < lines.Count; ++i) {
+				if (((CustomLine)lines[i]).StartLineNr <= lineNr && ((CustomLine)lines[i]).EndLineNr >= lineNr) {
+					OnBeforeChanged();
+					lines.RemoveAt(i);
+					OnChanged();
+					return;
+				}
+			}
+		}
+		
+		/// <summary>
+		/// This method moves all indices from index upward count lines
+		/// (useful for deletion/insertion of text)
+		/// </summary>
+		void MoveIndices(object sender,LineManagerEventArgs e)
+		{
+			bool changed = false;
+			OnBeforeChanged();
+			for (int i = 0; i < lines.Count; ++i) {
+				int startLineNr = ((CustomLine)lines[i]).StartLineNr;
+				int endLineNr = ((CustomLine)lines[i]).EndLineNr;
+				if (e.LineStart >= startLineNr && e.LineStart < endLineNr) {
+					changed = true;
+					((CustomLine)lines[i]).EndLineNr += e.LinesMoved;
+				} 
+				else if (e.LineStart < startLineNr) {
+					((CustomLine)lines[i]).StartLineNr += e.LinesMoved;
+					((CustomLine)lines[i]).EndLineNr += e.LinesMoved;
+				} 
+				else {
+				}
+/*
+				if (e.LinesMoved < 0 && lineNr == e.LineStart) {
+					lines.RemoveAt(i);
+					--i;
+					changed = true;
+				} else if (lineNr > e.LineStart + 1 || (e.LinesMoved < 0 && lineNr > e.LineStart))  {
+					changed = true;
+					((CustomLine)lines[i]).StartLineNr += e.LinesMoved;
+					((CustomLine)lines[i]).EndLineNr += e.LinesMoved;
+				}
+*/
+			}
+			
+			if (changed) {
+				OnChanged();
+			}
+		}
+		
+	}
+}

src/Libraries/ICSharpCode.TextEditor/Project/Src/Document/CustomLineManager/ICustomLineManager.cs

@@ -0,0 +1,72 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Ivo Kovacka" email="ivok@internet.sk"/>
+//     <version value="$version"/>
+// </file>
+
+using System;
+using System.Collections;
+using System.Drawing;
+
+namespace ICSharpCode.TextEditor.Document
+{
+	/// <summary>
+	/// This class handles the custom lines for a buffer
+	/// </summary>
+	public interface ICustomLineManager
+	{
+		/// <value>
+		/// Contains all custom lines 
+		/// </value>
+		ArrayList CustomLines {
+			get;
+		}
+		
+		/// <remarks>
+		/// Returns the Color if the line <code>lineNr</code> has custom bg color
+		/// otherwise returns <code>defaultColor</code>
+		/// </remarks>
+		Color GetCustomColor(int lineNr, Color defaultColor);
+		
+		/// <remarks>
+		/// Returns true if the line <code>lineNr</code> is read only
+		/// </remarks>
+		bool IsReadOnly(int lineNr, bool defaultReadOnly);
+
+		/// <remarks>
+		/// Returns true if <code>selection</code> is read only
+		/// </remarks>
+		bool IsReadOnly(ISelection selection, bool defaultReadOnly);
+
+		/// <remarks>
+		/// Add Custom Line at the line <code>lineNr</code>
+		/// </remarks>
+		void AddCustomLine(int lineNr, Color customColor, bool readOnly);
+		
+		/// <remarks>
+		/// Add Custom Lines from the line <code>startLineNr</code> to the line <code>endLineNr</code>
+		/// </remarks>
+		void AddCustomLine(int startLineNr,  int endLineNr, Color customColor, bool readOnly);
+		
+		/// <remarks>
+		/// Remove Custom Line at the line <code>lineNr</code>
+		/// </remarks>
+		void RemoveCustomLine(int lineNr);
+		
+		/// <remarks>
+		/// Clears all custom color lines
+		/// </remarks>
+		void Clear();
+		
+		/// <remarks>
+		/// Is fired before the change
+		/// </remarks>
+		event EventHandler BeforeChanged;
+		
+		/// <remarks>
+		/// Is fired after the change
+		/// </remarks>
+		event EventHandler Changed;
+	}
+}

src/Libraries/ICSharpCode.TextEditor/Project/Src/Document/DefaultDocument.cs

@@ -96,6 +96,7 @@ namespace ICSharpCode.TextEditor.Document
 		bool readOnly = false;
 		
 		ILineManager          lineTrackingStrategy = null;
+		ICustomLineManager    customLineManager    = null;
 		BookmarkManager       bookmarkManager      = null;
 		ITextBufferStrategy   textBufferStrategy   = null;
 		IFormattingStrategy   formattingStrategy   = null;
@@ -203,6 +204,16 @@ namespace ICSharpCode.TextEditor.Document
 			}
 		}
 		
+		
+		public ICustomLineManager CustomLineManager {
+			get {
+				return customLineManager;
+			}
+			set {
+				customLineManager = value;
+			}
+		}
+		
 		public string TextContent {
 			get {
 				return GetText(0, textBufferStrategy.Length);

src/Libraries/ICSharpCode.TextEditor/Project/Src/Document/DefaultTextEditorProperties.cs

@@ -51,6 +51,7 @@ namespace ICSharpCode.TextEditor.Document
 		LineViewerStyle  lineViewerStyle = LineViewerStyle.None;
 		string      lineTerminator = "\r\n";
 		bool        autoInsertCurlyBracket = true;
+		bool        useCustomLine = false;
 		
 		public int TabIndent {
 			get {
@@ -273,7 +274,14 @@ namespace ICSharpCode.TextEditor.Document
 				bracketMatchingStyle = value;
 			}
 		}
-
 		
+		public bool UseCustomLine {
+			get {
+				return useCustomLine;
+			}
+			set {
+				useCustomLine = value;
+			}
+		}		
 	}
 }

src/Libraries/ICSharpCode.TextEditor/Project/Src/Document/DocumentFactory.cs

@@ -31,6 +31,7 @@ namespace ICSharpCode.TextEditor.Document
 			doc.FoldingManager.FoldingStrategy       = null; //new ParserFoldingStrategy();
 			doc.MarkerStrategy       = new MarkerStrategy(doc);
 			doc.BookmarkManager      = new BookmarkManager(doc, doc.LineManager);
+			doc.CustomLineManager      = new CustomLineManager(doc.LineManager);
 			return doc;
 		}
 		

src/Libraries/ICSharpCode.TextEditor/Project/Src/Document/HighlightingStrategy/DefaultHighlightingStrategy.cs

@@ -51,7 +51,7 @@ namespace ICSharpCode.TextEditor.Document
 			digitColor      = new HighlightBackground("WindowText", "Window", false, false);
 			
 			// set small 'default color environment'
-			environmentColors["Default"]          = new HighlightBackground("WindowText", "Window", false, false);
+			environmentColors["DefaultBackground"]= new HighlightBackground("WindowText", "Window", false, false);
 			environmentColors["Selection"]        = new HighlightColor("HighlightText", "Highlight", false, false);
 			environmentColors["VRuler"]           = new HighlightColor("ControlLight", "Window", false, false);
 			environmentColors["InvalidLines"]     = new HighlightColor(Color.Red, false, false);
@@ -182,7 +182,7 @@ namespace ICSharpCode.TextEditor.Document
 
 		public HighlightColor GetColorFor(string name)
 		{
-			if (environmentColors[name] == null) {
+			if (! environmentColors.ContainsKey(name)) {
 				throw new Exception("Color : " + name + " not found!");
 			}
 			return (HighlightColor)environmentColors[name];
@@ -660,7 +660,7 @@ namespace ICSharpCode.TextEditor.Document
 					if (c == null) {
 						c = activeSpan.Color;
 						if (c.Color == Color.Transparent) {
-							c = GetColorFor("Default");
+							c = GetColorFor("DefaultBackground");
 						}
 						hasDefaultColor = true;
 					}
@@ -668,7 +668,7 @@ namespace ICSharpCode.TextEditor.Document
 				} else {
 					HighlightColor c = markNext != null ? markNext : GetColor(activeRuleSet, document, currentLine, currentOffset, currentLength);
 					if (c == null) {
-						words.Add(new TextWord(document, currentLine, currentOffset, currentLength, GetColorFor("Default"), true));
+						words.Add(new TextWord(document, currentLine, currentOffset, currentLength, GetColorFor("DefaultBackground"), true));
 					} else {
 						words.Add(new TextWord(document, currentLine, currentOffset, currentLength, c, false));
 					}

src/Libraries/ICSharpCode.TextEditor/Project/Src/Document/IDocument.cs

@@ -72,6 +72,13 @@ namespace ICSharpCode.TextEditor.Document
 			get;
 		}
 		
+		/// <summary>
+		/// The <see cref="ICustomColorLineManager"/> attached to the <see cref="IDocument"/> instance
+		/// </summary>
+		ICustomLineManager CustomLineManager {
+			get;
+		}
+		
 		MarkerStrategy MarkerStrategy {
 			get;
 		}

src/Libraries/ICSharpCode.TextEditor/Project/Src/Document/ITextEditorProperties.cs

@@ -147,6 +147,10 @@ namespace ICSharpCode.TextEditor.Document
 			get;
 			set;
 		}
-	
+		
+		bool UseCustomLine {
+			get;
+			set;
+		}	
 	}
 }

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/TextArea.cs

@@ -454,6 +454,14 @@ namespace ICSharpCode.TextEditor
 				return;
 			}
 			
+			if (TextEditorProperties.UseCustomLine == true) {
+				if (SelectionManager.HasSomethingSelected) {
+					if (Document.CustomLineManager.IsReadOnly(SelectionManager.SelectionCollection[0], false))
+						return;
+				} else if (Document.CustomLineManager.IsReadOnly(Caret.Line, false) == true)
+					return;
+			}
+			
 			if (ch < ' ') {
 				return;
 			}
@@ -507,6 +515,29 @@ namespace ICSharpCode.TextEditor
 				return true;
 			}
 			
+			if (keyData == Keys.Back || keyData == Keys.Delete || keyData == Keys.Enter) {
+				if (TextEditorProperties.UseCustomLine == true) {
+					if (SelectionManager.HasSomethingSelected) {
+						if (Document.CustomLineManager.IsReadOnly(SelectionManager.SelectionCollection[0], false))
+							return true;
+					} else {
+						int curLineNr   = Document.GetLineNumberForOffset(Caret.Offset);
+						if (Document.CustomLineManager.IsReadOnly(curLineNr, false) == true)
+							return true;
+						if ((Caret.Column == 0) && (curLineNr - 1 >= 0) && keyData == Keys.Back &&
+							Document.CustomLineManager.IsReadOnly(curLineNr - 1, false) == true)
+							return true;
+						if (keyData == Keys.Delete) {
+							LineSegment curLine = Document.GetLineSegment(curLineNr);
+							if (curLine.Offset + curLine.Length == Caret.Offset && 
+								Document.CustomLineManager.IsReadOnly(curLineNr + 1, false) == true) {
+								return true;
+							}
+						}
+					}
+				}
+			}
+			
 			// if not (or the process was 'silent', use the standard edit actions
 			IEditAction action =  motherTextEditorControl.GetEditAction(keyData);
 			AutoClearSelection = true;
@@ -556,6 +587,22 @@ namespace ICSharpCode.TextEditor
 			motherTextEditorControl.EndUpdate();
 		}
 		
+		public bool EnableCutOrPaste
+		{
+			get {
+				if (TextEditorProperties.UseCustomLine == true) {
+					if (SelectionManager.HasSomethingSelected == true) {
+						if (Document.CustomLineManager.IsReadOnly(SelectionManager.SelectionCollection[0], false))
+							return false;
+					}
+					if (Document.CustomLineManager.IsReadOnly(Caret.Line, false) == true)
+						return false;
+				}
+				return true;
+				
+			}
+		}
+		
 		string GenerateWhitespaceString(int length)
 		{
 			return new String(' ', length);

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/TextView.cs

@@ -276,14 +276,19 @@ namespace ICSharpCode.TextEditor
 			return lineNumber == base.textArea.Caret.Line && textArea.MotherTextAreaControl.TextEditorProperties.LineViewerStyle == LineViewerStyle.FullRow;
 		}
 		
-		Brush GetBgColorBrush(int lineNumber)
+			Brush GetBgColorBrush(int lineNumber)
 		{
 			if (DrawLineMarkerAtLine(lineNumber)) {
 				HighlightColor caretLine = textArea.Document.HighlightingStrategy.GetColorFor("CaretMarker");
 				return BrushRegistry.GetBrush(caretLine.Color);
 			}
-			HighlightBackground background = (HighlightBackground)textArea.Document.HighlightingStrategy.GetColorFor("Default");
-			return BrushRegistry.GetBrush(background.BackgroundColor);
+			HighlightBackground background = (HighlightBackground)textArea.Document.HighlightingStrategy.GetColorFor("DefaultBackground");
+			Color bgColor = background.BackgroundColor;
+			if (textArea.MotherTextAreaControl.TextEditorProperties.UseCustomLine == true) 
+			{
+				bgColor = textArea.Document.CustomLineManager.GetCustomColor(lineNumber, bgColor);
+			}
+			return BrushRegistry.GetBrush(bgColor);
 		}
 		
 		float PaintFoldingText(Graphics g, int lineNumber, float physicalXPos, Rectangle lineRectangle, string text, bool drawSelected)

src/Main/Base/Project/Src/TextEditor/Gui/Editor/SharpDevelopTextEditorProperties.cs

@@ -282,6 +282,16 @@ namespace ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor
 				properties.Set("BracketMatchingStyle", value);
 			}
 		}
+		
+		bool useCustomLine = false;
+		public bool UseCustomLine {
+			get {
+				return useCustomLine;
+			}
+			set {
+				useCustomLine = value;
+			}
+		}
 
 		/*
 		<Property key="DoubleBuffer" value="True" />