93 lines
3.3 KiB
C#
93 lines
3.3 KiB
C#
// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using Unity.CodeEditor.Document;
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namespace Unity.CodeEditor.Editing
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{
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/// <summary>
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/// Represents a selected segment.
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/// </summary>
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internal class SelectionSegment : ISegment
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{
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/// <summary>
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/// Creates a SelectionSegment from two offsets.
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/// </summary>
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internal SelectionSegment(int startOffset, int endOffset)
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{
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StartOffset = Math.Min(startOffset, endOffset);
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EndOffset = Math.Max(startOffset, endOffset);
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StartVisualColumn = EndVisualColumn = -1;
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}
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/// <summary>
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/// Creates a SelectionSegment from two offsets and visual columns.
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/// </summary>
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internal SelectionSegment(int startOffset, int startVisualColumn, int endOffset, int endVisualColumn)
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{
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if (startOffset < endOffset || (startOffset == endOffset && startVisualColumn <= endVisualColumn))
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{
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StartOffset = startOffset;
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StartVisualColumn = startVisualColumn;
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EndOffset = endOffset;
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EndVisualColumn = endVisualColumn;
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}
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else
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{
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StartOffset = endOffset;
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StartVisualColumn = endVisualColumn;
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EndOffset = startOffset;
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EndVisualColumn = startVisualColumn;
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}
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}
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/// <summary>
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/// Gets the start offset.
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/// </summary>
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internal int StartOffset { get; }
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/// <summary>
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/// Gets the end offset.
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/// </summary>
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public int EndOffset { get; }
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/// <summary>
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/// Gets the start visual column.
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/// </summary>
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internal int StartVisualColumn { get; }
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/// <summary>
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/// Gets the end visual column.
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/// </summary>
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internal int EndVisualColumn { get; }
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/// <inheritdoc/>
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int ISegment.Offset => StartOffset;
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/// <inheritdoc/>
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public int Length => EndOffset - StartOffset;
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/// <inheritdoc/>
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public override string ToString()
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{
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return $"[SelectionSegment StartOffset={StartOffset}, EndOffset={EndOffset}, StartVC={StartVisualColumn}, EndVC={EndVisualColumn}]";
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}
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}
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}
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