HexManiacAdvance/src/HexManiac.Core/ViewModels/DataFormats.cs
Benjamin Popp fc3392c6c1 Working on bit arrays
Have the one test, started working on implementation
2019-06-23 14:09:50 -05:00

311 lines
12 KiB
C#

// Data Formats are simple types that provide limited meta-data that can vary based on the format.
// Data Formats use the Visitor design pattern to allow things like rendering of the data
using HavenSoft.HexManiac.Core.Models.Runs;
using System;
using System.Collections.Generic;
using System.Linq;
namespace HavenSoft.HexManiac.Core.ViewModels.DataFormats {
public interface IDataFormat : IEquatable<IDataFormat> {
void Visit(IDataFormatVisitor visitor, byte data);
}
public interface IDataFormatInstance : IDataFormat {
int Source { get; } // the beginning of the run/group that this instance belongs to
int Position { get; } // the index in the run/group that this instance belongs to
}
public interface IDataFormatVisitor {
void Visit(Undefined dataFormat, byte data);
void Visit(None dataFormat, byte data);
void Visit(UnderEdit dataFormat, byte data);
void Visit(Pointer pointer, byte data);
void Visit(Anchor anchor, byte data);
void Visit(PCS pcs, byte data);
void Visit(EscapedPCS pcs, byte data);
void Visit(ErrorPCS pcs, byte data);
void Visit(Ascii ascii, byte data);
void Visit(Integer integer, byte data);
void Visit(IntegerEnum integer, byte data);
void Visit(EggSection section, byte data);
void Visit(EggItem item, byte data);
void Visit(PlmItem item, byte data);
void Visit(BitArray array, byte data);
}
/// <summary>
/// Used for locations where there is no data.
/// As in the location is out of range of the file.
/// </summary>
public class Undefined : IDataFormat {
public static Undefined Instance { get; } = new Undefined();
private Undefined() { }
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
public bool Equals(IDataFormat format) => format is Undefined;
}
/// <summary>
/// Used for locations where the format is unknown, or the data is unused.
/// Basically everything is 'None' unless we have special information about it.
/// </summary>
public class None : IDataFormat {
public static None Instance { get; } = new None();
private None() { }
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
public bool Equals(IDataFormat format) => format is None;
}
public class UnderEdit : IDataFormat {
public IDataFormat OriginalFormat { get; }
public string CurrentText { get; }
public int EditWidth { get; }
public IReadOnlyList<AutoCompleteSelectionItem> AutocompleteOptions { get; }
public UnderEdit(IDataFormat original, string text, int editWidth = 1, IReadOnlyList<AutoCompleteSelectionItem> autocompleteOptions = null) {
OriginalFormat = original;
CurrentText = text;
EditWidth = editWidth;
AutocompleteOptions = autocompleteOptions;
}
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
public bool Equals(IDataFormat format) {
if (!(format is UnderEdit that)) return false;
if (!OriginalFormat.Equals(that.OriginalFormat)) return false;
if (EditWidth != that.EditWidth) return false;
if (AutocompleteOptions != null ^ that.AutocompleteOptions != null) return false; // if only one is null, not equal
if (AutocompleteOptions != null && that.AutocompleteOptions != null && AutocompleteOptions.SequenceEqual(that.AutocompleteOptions)) return false;
return CurrentText == that.CurrentText;
}
}
public static class UnderEditExtensions {
public static UnderEdit Edit(this IDataFormat format, string text) {
if (format is UnderEdit underEdit) {
return new UnderEdit(underEdit.OriginalFormat, underEdit.CurrentText + text, underEdit.EditWidth);
}
return new UnderEdit(format, text);
}
}
public class Pointer : IDataFormatInstance {
public const int NULL = -0x08000000;
public int Source { get; } // 6 hex digits
public int Position { get; } // 0 through 3
public int Destination { get; } // 6 hex digits
public string DestinationName { get; } // null if there is no name for that anchor
public string DestinationAsText {
get {
var destination = DestinationName;
if (string.IsNullOrEmpty(destination)) destination = Destination.ToString("X6");
return $"<{destination}>";
}
}
public Pointer(int source, int positionInPointer, int destination, string destinationName) {
Source = source;
Position = positionInPointer;
Destination = destination;
DestinationName = destinationName;
}
public bool Equals(IDataFormat other) {
if (!(other is Pointer pointer)) return false;
return pointer.Source == Source && pointer.Position == Position && pointer.Destination == Destination;
}
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class Anchor : IDataFormat {
public IDataFormat OriginalFormat { get; }
public string Name { get; }
public string Format { get; }
public IReadOnlyList<int> Sources { get; }
public Anchor(IDataFormat original, string name, string format, IReadOnlyList<int> sources) => (OriginalFormat, Name, Format, Sources) = (original, name, format, sources);
public bool Equals(IDataFormat other) {
if (!(other is Anchor anchor)) return false;
return anchor.Name == Name && anchor.Format == Format && anchor.Sources.SequenceEqual(Sources) && anchor.OriginalFormat.Equals(OriginalFormat);
}
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class PCS : IDataFormatInstance {
public int Source { get; }
public int Position { get; }
public string FullString { get; }
public string ThisCharacter { get; }
public PCS(int source, int position, string full, string character) => (Source, Position, FullString, ThisCharacter) = (source, position, full, character);
public bool Equals(IDataFormat other) {
if (!(other is PCS pcs)) return false;
return pcs.Source == Source && pcs.Position == Position && pcs.FullString == FullString && pcs.ThisCharacter == ThisCharacter;
}
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class EscapedPCS : IDataFormatInstance {
public int Source { get; }
public int Position { get; }
public string FullString { get; }
public byte ThisValue { get; }
public EscapedPCS(int source, int position, string full, byte value) => (Source, Position, FullString, ThisValue) = (source, position, full, value);
public bool Equals(IDataFormat other) {
if (!(other is EscapedPCS pcs)) return false;
return pcs.Source == Source && pcs.Position == Position && pcs.FullString == FullString && pcs.ThisValue == ThisValue;
}
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class ErrorPCS : IDataFormatInstance {
public int Source { get; }
public int Position { get; }
public string FullString { get; }
public byte ThisValue { get; }
public ErrorPCS(int source, int position, string full, byte value) => (Source, Position, FullString, ThisValue) = (source, position, full, value);
public bool Equals(IDataFormat other) {
if (!(other is EscapedPCS pcs)) return false;
return pcs.Source == Source && pcs.Position == Position && pcs.FullString == FullString && pcs.ThisValue == ThisValue;
}
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class Ascii : IDataFormatInstance {
public int Source { get; }
public int Position { get; }
public char ThisCharacter { get; }
public Ascii(int source, int position, char value) => (Source, Position, ThisCharacter) = (source, position, value);
public bool Equals(IDataFormat other) {
if (!(other is Ascii ascii)) return false;
return ascii.Source == Source && ascii.Position == Position && ascii.ThisCharacter == ThisCharacter;
}
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class Integer : IDataFormatInstance {
public int Source { get; }
public int Position { get; }
public int Value { get; }
public int Length { get; } // number of bytes used by this integer
public Integer(int source, int position, int value, int length) => (Source, Position, Value, Length) = (source, position, value, length);
public virtual bool Equals(IDataFormat other) {
if (!(other is Integer that)) return false;
return Source == that.Source && Position == that.Position && Value == that.Value && Length == that.Length;
}
public virtual bool CanStartWithCharacter(char input) {
return char.IsNumber(input);
}
public virtual void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class IntegerEnum : Integer {
public new string Value { get; }
public IntegerEnum(int source, int position, string value, int length) : base(source, position, -1, length) => Value = value;
public override bool Equals(IDataFormat other) {
if (!(other is IntegerEnum that)) return false;
return Value == that.Value && base.Equals(other);
}
public override bool CanStartWithCharacter(char input) {
return char.IsLetterOrDigit(input) ||
input == PCSRun.StringDelimeter ||
"?-".Contains(input);
}
public override void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class EggSection : IDataFormatInstance {
public int Source { get; }
public int Position { get; }
public int Length => 2;
public string SectionName { get; }
public EggSection(int source, int position, string name) => (Source, Position, SectionName) = (source, position, name);
public bool Equals(IDataFormat other) {
if (other is EggSection that) {
return that.SectionName == SectionName &&
that.Source == Source &&
that.Length == Length;
}
return false;
}
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class EggItem : IDataFormatInstance {
public int Source { get; }
public int Position { get; }
public string ItemName { get; }
public EggItem(int source, int position, string name) => (Source, Position, ItemName) = (source, position, name);
public bool Equals(IDataFormat other) {
if (other is EggItem that) {
return that.ItemName == ItemName && that.Source == Source;
}
return false;
}
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class PlmItem : IDataFormatInstance {
public int Source { get; }
public int Position { get; }
public int Level { get; }
public int Move { get; }
public string MoveName { get; }
public override string ToString() => (Level == 0x7F && Move == 0x1FF) ? EggMoveRun.GroupStart + string.Empty + EggMoveRun.GroupEnd : $"{Level} {MoveName}";
public PlmItem(int source, int position, int level, int move, string moveName) {
(Source, Position) = (source, position);
(Level, Move, MoveName) = (level, move, moveName);
}
public bool Equals(IDataFormat other) => ToString() == other.ToString();
public void Visit(IDataFormatVisitor visitor, byte data) => visitor.Visit(this, data);
}
public class BitArray : IDataFormatInstance {
public int Source { get; }
public int Position { get; }
public bool Equals(IDataFormat other) {
var that = other as BitArray;
if (that == null) return false;
return Source == that.Source && Position == that.Position;
}
public void Visit(IDataFormatVisitor visitor, byte data) {
visitor.Visit(this, data);
}
}
}