Dnspy/dnSpy/dnSpy.Contracts.DnSpy/Hex/HexColumnPosition.cs
2021-09-20 18:20:01 +02:00

123 lines
4.0 KiB
C#

/*
Copyright (C) 2014-2019 de4dot@gmail.com
This file is part of dnSpy
dnSpy is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
dnSpy is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
namespace dnSpy.Contracts.Hex {
/// <summary>
/// A position in a hex column
/// </summary>
public readonly struct HexColumnPosition : IEquatable<HexColumnPosition> {
/// <summary>
/// true if this is a default instance that hasn't been initialized
/// </summary>
public bool IsDefault => ValuePosition.IsDefault;
/// <summary>
/// Active column
/// </summary>
public HexColumnType ActiveColumn { get; }
/// <summary>
/// Position in the values column
/// </summary>
public HexCellPosition ValuePosition { get; }
/// <summary>
/// Position in the ASCII column
/// </summary>
public HexCellPosition AsciiPosition { get; }
/// <summary>
/// Gets the active position (<see cref="ValuePosition"/> or <see cref="AsciiPosition"/>)
/// </summary>
public HexCellPosition ActivePosition {
get {
switch (ActiveColumn) {
case HexColumnType.Values: return ValuePosition;
case HexColumnType.Ascii: return AsciiPosition;
case HexColumnType.Offset:
default:
throw new InvalidOperationException();
}
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="activeColumn">Active column</param>
/// <param name="valuePosition">Position in the values column</param>
/// <param name="asciiPosition">Position in the ASCII column</param>
public HexColumnPosition(HexColumnType activeColumn, HexCellPosition valuePosition, HexCellPosition asciiPosition) {
if (activeColumn != HexColumnType.Values && activeColumn != HexColumnType.Ascii)
throw new ArgumentOutOfRangeException(nameof(activeColumn));
if (valuePosition.IsDefault || valuePosition.Column != HexColumnType.Values)
throw new ArgumentException();
if (asciiPosition.IsDefault || asciiPosition.Column != HexColumnType.Ascii)
throw new ArgumentException();
ActiveColumn = activeColumn;
ValuePosition = valuePosition;
AsciiPosition = asciiPosition;
}
/// <summary>
/// operator ==()
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
public static bool operator ==(HexColumnPosition a, HexColumnPosition b) => a.Equals(b);
/// <summary>
/// operator !=()
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
public static bool operator !=(HexColumnPosition a, HexColumnPosition b) => !a.Equals(b);
/// <summary>
/// Equals()
/// </summary>
/// <param name="other">Other instance</param>
/// <returns></returns>
public bool Equals(HexColumnPosition other) => ActiveColumn == other.ActiveColumn && ValuePosition.Equals(other.ValuePosition) && AsciiPosition.Equals(other.AsciiPosition);
/// <summary>
/// Equals()
/// </summary>
/// <param name="obj">Object</param>
/// <returns></returns>
public override bool Equals(object? obj) => obj is HexColumnPosition && Equals((HexColumnPosition)obj);
/// <summary>
/// GetHashCode()
/// </summary>
/// <returns></returns>
public override int GetHashCode() => (int)ActiveColumn ^ ValuePosition.GetHashCode() ^ AsciiPosition.GetHashCode();
/// <summary>
/// ToString()
/// </summary>
/// <returns></returns>
public override string ToString() => "[" + ActiveColumn.ToString() + ",V=" + ValuePosition.ToString() + ",A=" + AsciiPosition.ToString() + "]";
}
}