Tango - Twine softwares

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Diffstat (limited to 'Software/Visual_Studio/TEMP/Tango.Scripting/Tango.Scripting.IDE/Properties')

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// 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.Collections.Generic; using System.Linq; using Tango.Scripting.Editors.Document; using Tango.Scripting.Editors.Utils; namespace Tango.Scripting.Editors.Editing { /// <summary> /// A simple selection. /// </summary> sealed class SimpleSelection : Selection { readonly TextViewPosition start, end; readonly int startOffset, endOffset; /// <summary> /// Creates a new SimpleSelection instance. /// </summary> internal SimpleSelection(TextArea textArea, TextViewPosition start, TextViewPosition end) : base(textArea) { this.start = start; this.end = end; this.startOffset = textArea.Document.GetOffset(start.Location); this.endOffset = textArea.Document.GetOffset(end.Location); } /// <inheritdoc/> public override IEnumerable<SelectionSegment> Segments { get { return ExtensionMethods.Sequence<SelectionSegment>(new SelectionSegment(startOffset, start.VisualColumn, endOffset, end.VisualColumn)); } } /// <inheritdoc/> public override ISegment SurroundingSegment { get { return new SelectionSegment(startOffset, endOffset); } } /// <inheritdoc/> public override void ReplaceSelectionWithText(string newText) { if (newText == null) throw new ArgumentNullException("newText"); using (textArea.Document.RunUpdate()) { ISegment[] segmentsToDelete = textArea.GetDeletableSegments(this.SurroundingSegment); for (int i = segmentsToDelete.Length - 1; i >= 0; i--) { if (i == segmentsToDelete.Length - 1) { if (segmentsToDelete[i].Offset == SurroundingSegment.Offset && segmentsToDelete[i].Length == SurroundingSegment.Length) { newText = AddSpacesIfRequired(newText, start, end); } int vc = textArea.Caret.VisualColumn; textArea.Caret.Offset = segmentsToDelete[i].EndOffset; if (string.IsNullOrEmpty(newText)) textArea.Caret.VisualColumn = vc; textArea.Document.Replace(segmentsToDelete[i], newText); } else { textArea.Document.Remove(segmentsToDelete[i]); } } if (segmentsToDelete.Length != 0) { textArea.ClearSelection(); } } } public override TextViewPosition StartPosition { get { return start; } } public override TextViewPosition EndPosition { get { return end; } } /// <inheritdoc/> public override Selection UpdateOnDocumentChange(DocumentChangeEventArgs e) { if (e == null) throw new ArgumentNullException("e"); return Selection.Create( textArea, new TextViewPosition(textArea.Document.GetLocation(e.GetNewOffset(startOffset, AnchorMovementType.Default)), start.VisualColumn), new TextViewPosition(textArea.Document.GetLocation(e.GetNewOffset(endOffset, AnchorMovementType.Default)), end.VisualColumn) ); } /// <inheritdoc/> public override bool IsEmpty { get { return startOffset == endOffset; } } /// <inheritdoc/> public override int Length { get { return Math.Abs(endOffset - startOffset); } } /// <inheritdoc/> public override Selection SetEndpoint(TextViewPosition endPosition) { return Create(textArea, start, endPosition); } public override Selection StartSelectionOrSetEndpoint(TextViewPosition startPosition, TextViewPosition endPosition) { var document = textArea.Document; if (document == null) throw ThrowUtil.NoDocumentAssigned(); return Create(textArea, start, endPosition); } /// <inheritdoc/> public override int GetHashCode() { unchecked { return startOffset * 27811 + endOffset + textArea.GetHashCode(); } } /// <inheritdoc/> public override bool Equals(object obj) { SimpleSelection other = obj as SimpleSelection; if (other == null) return false; return this.start.Equals(other.start) && this.end.Equals(other.end) && this.startOffset == other.startOffset && this.endOffset == other.endOffset && this.textArea == other.textArea; } /// <inheritdoc/> public override string ToString() { return "[SimpleSelection Start=" + start + " End=" + end + "]"; } } }


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