Adds Undo/Redo to ReClass.NET #263

Original file line number	Diff line number	Diff line change
		@@ -1,4 +1,4 @@
	namespace ReClassNET
	namespace ReClassNET
		{
		public class Constants
		{
Expand Down Expand Up		@@ -39,5 +39,14 @@ public static class CommandLineOptions
		public const string FileExtRegister = "registerfileext";
		public const string FileExtUnregister = "unregisterfileext";
		}

	/// <summary>
	/// Change type for commandified members in classes which is used to signal what change occurred exactly. As we don't use this feature of the commandified
	/// class, this enum is defined to simply signal 'no specific change other than it changed' happened.
	/// </summary>
	public enum GeneralPurposeChangeType
	{
	None
	}
		}
		}

18 changes: 18 additions & 0 deletions ReClass.NET/Controls/MemoryViewControl.cs

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Original file line number	Diff line number	Diff line change
Expand Up		@@ -704,5 +704,23 @@ public void Reset()

		VerticalScroll.Value = VerticalScroll.Minimum;
		}

	public void InitCurrentClassFromRTTI(ClassNode classNode)
	{
	var args = new DrawContextRequestEventArgs { Node = classNode };

	var requestHandler = DrawContextRequested;
	requestHandler?.Invoke(this, args);
	var view = new DrawContext
	{
	Settings = args.Settings,
	Process = args.Process,
	Memory = args.Memory,
	CurrentTime = args.CurrentTime,
	Address = args.BaseAddress,
	Level = 0,
	};
	classNode.InitFromRTTI(view);
	}
		}
		}

72 changes: 64 additions & 8 deletions ReClass.NET/Forms/MainForm.Designer.cs

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14 changes: 14 additions & 0 deletions ReClass.NET/Forms/MainForm.Functions.cs

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Original file line number	Diff line number	Diff line change
Expand Up		@@ -16,6 +16,7 @@
		using ReClassNET.Nodes;
		using ReClassNET.Project;
		using ReClassNET.UI;
	using SD.Tools.Algorithmia.Commands;

		namespace ReClassNET.Forms
		{
Expand Down Expand Up		@@ -213,6 +214,10 @@ public void LoadProjectFromPath(string path)
		{
		Contract.Requires(path != null);

	CommandQueueManagerSingleton.GetInstance().ResetActiveCommandQueue();
	CommandQueueManagerSingleton.GetInstance().BeginNonUndoablePeriod(); // we don't want to trigger undo/redo activity while loading
	CommandQueueManagerSingleton.GetInstance().RaiseEvents = false;

		var project = new ReClassNetProject();

		LoadProjectFromPath(path, ref project);
Expand All		@@ -224,6 +229,10 @@ public void LoadProjectFromPath(string path)
		}

		SetProject(project);

	// Done loading, resume undo/redo activity
	CommandQueueManagerSingleton.GetInstance().RaiseEvents = true;
	CommandQueueManagerSingleton.GetInstance().EndNonUndoablePeriod();
		}

		/// <summary>Loads the file into the given project.</summary>
Expand Down Expand Up		@@ -310,6 +319,9 @@ public void ReplaceSelectedNodesWithType(Type type)
		{
		var selected = hotSpotsToReplace.Dequeue();

	// Use a single command here to wrap all state changes into one single undoable object, so everything gets undone/redone in 1 go
	var cmd = new UndoablePeriodCommand("Replace node");
	CommandQueueManagerSingleton.GetInstance().BeginUndoablePeriod(cmd);
		var node = BaseNode.CreateInstanceFromType(type);

		var createdNodes = new List<BaseNode>();
Expand All		@@ -329,6 +341,8 @@ public void ReplaceSelectedNodesWithType(Type type)
		hotSpotsToReplace.Enqueue(new MemoryViewControl.SelectedNodeInfo(createdNode, selected.Process, selected.Memory, selected.Address + createdNode.Offset - node.Offset, selected.Level));
		}
		}
	// Mark the end of the activities that have to be tracked with this single command
	CommandQueueManagerSingleton.GetInstance().EndUndoablePeriod(cmd);
		}
		}

Expand Down

50 changes: 49 additions & 1 deletion ReClass.NET/Forms/MainForm.cs

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Original file line number	Diff line number	Diff line change
Expand Up		@@ -22,6 +22,7 @@
		using ReClassNET.UI;
		using ReClassNET.Util;
		using ReClassNET.Util.Conversion;
	using SD.Tools.Algorithmia.Commands;

		namespace ReClassNET.Forms
		{
Expand Down Expand Up		@@ -95,8 +96,11 @@ public MainForm()
		};

		pluginManager = new PluginManager(new DefaultPluginHost(this, Program.RemoteProcess, Program.Logger));

	CommandQueueManagerSingleton.GetInstance().CommandQueueActionPerformed += OnCommandQueueActionPerformed;
		}


		protected override void OnLoad(EventArgs e)
		{
		base.OnLoad(e);
Expand Down Expand Up		@@ -135,6 +139,8 @@ protected override void OnLoad(EventArgs e)
		{
		AttachToProcess(Program.CommandLineArgs[Constants.CommandLineOptions.AttachTo]);
		}

	SetStateOfUndoRedoButtons();
		}

		protected override void OnFormClosed(FormClosedEventArgs e)
Expand Down Expand Up		@@ -835,6 +841,8 @@ private void memoryViewControl_SelectionChanged(object sender, EventArgs e)

		addBytesToolStripDropDownButton.Enabled = parentContainer != null \|\| isContainerNode;
		insertBytesToolStripDropDownButton.Enabled = selectedNodes.Count == 1 && parentContainer != null && !isContainerNode;
	initClassToolStripMenuItem.Enabled = nodeIsClass;
	initClassFromRTTIToolStripBarMenuItem.Enabled = nodeIsClass;

		var enabled = selectedNodes.Count > 0 && !nodeIsClass;
		toolStrip.Items.OfType<TypeToolStripButton>().ForEach(b => b.Enabled = enabled);
Expand Down Expand Up		@@ -1027,7 +1035,7 @@ private void memoryViewControl_DrawContextRequested(object sender, DrawContextRe
		{
		var process = Program.RemoteProcess;

	var classNode = CurrentClassNode;
	var classNode = (args.Node as ClassNode) ?? CurrentClassNode;
		if (classNode != null)
		{
		memoryViewBuffer.Size = classNode.MemorySize;
Expand All		@@ -1051,5 +1059,45 @@ private void memoryViewControl_DrawContextRequested(object sender, DrawContextRe
		args.BaseAddress = address;
		}
		}

	private void initClassToolStripMenuItem_Click(object sender, EventArgs e)
	{
	var selectedNodes = memoryViewControl.GetSelectedNodes();
	var node = selectedNodes.FirstOrDefault()?.Node;
	if (node == null \|\| !(node is ClassNode))
	{
	return;
	}

	var cmd = new UndoablePeriodCommand("InitClassFromRTTI");
	CommandQueueManagerSingleton.GetInstance().BeginUndoablePeriod(cmd);
	memoryViewControl.InitCurrentClassFromRTTI(node as ClassNode);
	CommandQueueManagerSingleton.GetInstance().EndUndoablePeriod(cmd);
	}


	private void SetStateOfUndoRedoButtons()
	{
	undoToolbarMenuItem.Enabled = CommandQueueManagerSingleton.GetInstance().CanUndo(Program.CommandQueueID);
	redoToolbarMenuItem.Enabled = CommandQueueManagerSingleton.GetInstance().CanDo(Program.CommandQueueID);
	}


	private void OnCommandQueueActionPerformed(object sender, CommandQueueActionPerformedEventArgs e)
	{
	SetStateOfUndoRedoButtons();
	}


	private void undoToolbarMenuItem_Click(object sender, EventArgs e)
	{
	CommandQueueManagerSingleton.GetInstance().UndoLastCommand();
	}


	private void redoToolbarMenuItem_Click(object sender, EventArgs e)
	{
	CommandQueueManagerSingleton.GetInstance().RedoLastCommand();
	}
		}
		}

2 changes: 1 addition & 1 deletion ReClass.NET/Forms/MainForm.resx

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Original file line number	Diff line number	Diff line change
Expand Up		@@ -206,6 +206,6 @@
		</value>
		</data>
		<metadata name="$this.TrayHeight" type="System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
	<value>42</value>
	<value>104</value>
		</metadata>
		</root>

12 changes: 12 additions & 0 deletions ReClass.NET/Memory/MemoryBuffer.cs

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Original file line number	Diff line number	Diff line change
Expand Up		@@ -366,5 +366,17 @@ public bool HasChanged(int offset, int length)

		return false;
		}

	public UInt64FloatDoubleData InterpretData64(int offset) => new UInt64FloatDoubleData
	{
	Raw1 = ReadInt32(offset),
	Raw2 = ReadInt32(offset + sizeof(int))
	};


	public UInt32FloatData InterpretData32(int offset) => new UInt32FloatData
	{
	Raw = ReadInt32(offset)
	};
		}
		}

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