97 lines
3.4 KiB
C#
97 lines
3.4 KiB
C#
//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="MatrixIndexLabel.cs"
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// Project: StgSharp
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// AuthorGroup: Nitload Space
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// Copyright (c) Nitload Space. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the “Software”), to deal in the Software without restriction,
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// including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software,
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// and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and
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// this permission notice shall be included in all copies
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// or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED “AS IS”,
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// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH
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// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace StgSharp.Mathematics
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{
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public readonly struct MatrixIndexLabel
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{
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private readonly bool _isRange;
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public readonly Range R;
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internal MatrixIndexLabel(Index i)
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{
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_isRange = false;
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R = new Range(i, Index.End);
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}
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internal MatrixIndexLabel(Range r)
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{
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_isRange = true;
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R = r;
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}
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public (int offset,int legnth) GetOffsetAndLength(int CountOfCollection)
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{
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return _isRange ?
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R.GetOffsetAndLength(CountOfCollection) : (R.Start.GetOffset(CountOfCollection), 1);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public int Length(int CountOfCollection)
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{
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return _isRange ? R.GetOffsetAndLength(CountOfCollection).Length : 1;
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}
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public int Offset(int CountOfCollection)
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{
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return _isRange ?
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R.GetOffsetAndLength(CountOfCollection).Offset : R.Start
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.GetOffset(CountOfCollection);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static implicit operator MatrixIndexLabel(Index i)
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{
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return new MatrixIndexLabel(i);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static implicit operator MatrixIndexLabel(Range r)
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{
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return new MatrixIndexLabel(r);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static implicit operator MatrixIndexLabel(int i)
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{
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return new MatrixIndexLabel(i);
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}
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}
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}
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