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pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFil
// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)

using System;
using System.ComponentModel;
using Tango.Scripting.Editors.Document;

namespace Tango.Scripting.Editors.Rendering
{
	/// <summary>
	/// Represents a collapsed line section.
	/// Use the Uncollapse() method to uncollapse the section.
	/// </summary>
	public sealed class CollapsedLineSection
	{
		DocumentLine start, end;
		HeightTree heightTree;
		
		#if DEBUG
		internal string ID;
		static int nextId;
		#else
		const string ID = "";
		#endif
		
		internal CollapsedLineSection(HeightTree heightTree, DocumentLine start, DocumentLine end)
		{
			this.heightTree = heightTree;
			this.start = start;
			this.end = end;
			#if DEBUG
			unchecked {
				this.ID = " #" + (nextId++);
			}
			#endif
		}
		
		/// <summary>
		/// Gets if the document line is collapsed.
		/// This property initially is true and turns to false when uncollapsing the section.
{ get { return start != null; } } /// <summary> /// Gets the start line of the section. /// When the section is uncollapsed or the text containing it is deleted, /// this property returns null. /// </summary> public DocumentLine Start { get { return start; } internal set { start = value; } } /// <summary> /// Gets the end line of the section. /// When the section is uncollapsed or the text containing it is deleted, /// this property returns null. /// </summary> public DocumentLine End { get { return end; } internal set { end = value; } } /// <summary> /// Uncollapses the section. /// This causes the Start and End properties to be set to null! /// Does nothing if the section is already uncollapsed. /// </summary> public void Uncollapse() { if (start == null) return; heightTree.Uncollapse(this); #if DEBUG heightTree.CheckProperties(); #endif start = null; end = null; } /// <summary> /// Gets a string representation of the collapsed section. /// </summary> [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1305:SpecifyIFormatProvider", MessageId = "System.Int32.ToString")] public override string ToString() { return "[CollapsedSection" + ID + " Start=" + (start != null ? start.LineNumber.ToString() : "null") + " End=" + (end != null ? end.LineNumber.ToString() : "null") + "]"; } } }