display int checksum with object header

Author: LeftofZen

Gui/ViewModels/Loco/ObjectDatHeaderViewModel.cs

@@ -1,32 +1,24 @@
 using Dat.Data;
 using ReactiveUI;
 using ReactiveUI.Fody.Helpers;
-using System;
 using System.ComponentModel;
 
 namespace Gui.ViewModels;
 
 [TypeConverter(typeof(ExpandableObjectConverter))]
-public class ObjectDatHeaderViewModel(uint32_t checksum, SawyerEncoding encoding, uint datDataLength) : ReactiveObject, IViewModel
+public class ObjectDatHeaderViewModel(SawyerEncoding encoding, uint datDataLength) : ReactiveObject, IViewModel
 {
 	[Browsable(false)]
 	public string DisplayName
 		=> "Dat Header";
 
 	public ObjectDatHeaderViewModel()
-		: this(0, SawyerEncoding.Uncompressed, 0)
+		: this(SawyerEncoding.Uncompressed, 0)
 	{ }
 
 	[Reactive]
 	public SawyerEncoding Encoding { get; set; } = encoding;
 
 	[ReadOnly(true)]
 	public uint32_t DataLength { get; } = datDataLength;
-
-	public string ChecksumHex
-	{
-		get => string.Format($"0x{_checksum:X}");
-		set => _checksum = Convert.ToUInt32(value[2..], 16);
-	}
-	uint32_t _checksum { get; set; } = checksum;
 }

Gui/ViewModels/Loco/ObjectEditorViewModel.cs

@@ -311,9 +311,11 @@ public override void Load()
 					objectHeaderViewModel.ObjectSource = ObjectSource.LocomotionSteam;
 				}
 
-				AddViewModelToGroup(objectHeaderViewModel, objectGroup);
+				AddViewModelToGroup(
+					objectHeaderViewModel,
+					objectGroup);
+
 				AddViewModelToGroup(new ObjectDatHeaderViewModel(
-					Model.DatInfo.S5Header.Checksum,
 					Model.DatInfo.ObjectHeader.Encoding,
 					Model.DatInfo.ObjectHeader.DataLength),
 					objectGroup);

Gui/ViewModels/Loco/ObjectModelHeaderViewModel.cs

@@ -1,4 +1,5 @@
 using Definitions.ObjectModels.Types;
+using System;
 using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
 
@@ -14,6 +15,10 @@ public DesignerObjectModelHeaderViewModel()
 public class ObjectModelHeaderViewModel(ObjectModelHeader model)
 	: BaseViewModel<ObjectModelHeader>(model)
 {
+	[Browsable(false)]
+	public override string DisplayName
+		=> "Object Header";
+
 	[MaxLength(8)]
 	public string Name
 	{
@@ -33,7 +38,15 @@ public ObjectType ObjectType
 		set => Model.ObjectType = value;
 	}
 
-	[Browsable(false)]
-	public override string DisplayName
-		=> "Object Header";
+	public uint DatChecksumInt
+	{
+		get => Model.DatChecksum;
+		set => Model.DatChecksum = value;
+	}
+
+	public string DatChecksumHex
+	{
+		get => string.Format($"0x{DatChecksumInt:X}");
+		set => DatChecksumInt = Convert.ToUInt32(value[2..], 16);
+	}
 }