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Undo support (#199)

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Added undo support for move, create, duplicate and delete node, and connect port
This commit is contained in:
Wang Cong 2019-11-06 18:42:22 +08:00 committed by Thor Brigsted
parent a825af8192
commit 2d1a671b71
3 changed files with 15 additions and 1 deletions
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1
Scripts/Editor/NodeEditorAction.cs
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@ -81,6 +81,7 @@ namespace XNodeEditor {
for (int i = 0; i < Selection.objects.Length; i++) {
if (Selection.objects[i] is XNode.Node) {
XNode.Node node = Selection.objects[i] as XNode.Node;
Undo.RecordObject(node, "Moved Node");
Vector2 initial = node.position;
node.position = mousePos + dragOffset[i];
if (gridSnap) {

11
Scripts/Editor/NodeGraphEditor.cs
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@ -138,7 +138,9 @@ namespace XNodeEditor {
/// <summary> Create a node and save it in the graph asset </summary>
public virtual XNode.Node CreateNode(Type type, Vector2 position) {
Undo.RecordObject(target, "Create Node");
XNode.Node node = target.AddNode(type);
Undo.RegisterCreatedObjectUndo(node, "Create Node");
node.position = position;
if (node.name == null || node.name.Trim() == "") node.name = NodeEditorUtilities.NodeDefaultName(type);
AssetDatabase.AddObjectToAsset(node, target);
@ -149,7 +151,9 @@ namespace XNodeEditor {
/// <summary> Creates a copy of the original node in the graph </summary>
public XNode.Node CopyNode(XNode.Node original) {
Undo.RecordObject(target, "Duplicate Node");
XNode.Node node = target.CopyNode(original);
Undo.RegisterCreatedObjectUndo(node, "Duplicate Node");
node.name = original.name;
AssetDatabase.AddObjectToAsset(node, target);
if (NodeEditorPreferences.GetSettings().autoSave) AssetDatabase.SaveAssets();
@ -158,8 +162,13 @@ namespace XNodeEditor {
/// <summary> Safely remove a node and all its connections. </summary>
public virtual void RemoveNode(XNode.Node node) {
Undo.RecordObject(node, "Delete Node");
Undo.RecordObject(target, "Delete Node");
foreach (var port in node.Ports)
foreach (var conn in port.GetConnections())
Undo.RecordObject(conn.node, "Delete Node");
target.RemoveNode(node);
UnityEngine.Object.DestroyImmediate(node, true);
Undo.DestroyObjectImmediate(node);
if (NodeEditorPreferences.GetSettings().autoSave) AssetDatabase.SaveAssets();
}

4
Scripts/NodePort.cs
View File

@ -199,6 +199,10 @@ namespace XNode {
if (port == this) { Debug.LogWarning("Cannot connect port to self."); return; }
if (IsConnectedTo(port)) { Debug.LogWarning("Port already connected. "); return; }
if (direction == port.direction) { Debug.LogWarning("Cannot connect two " + (direction == IO.Input ? "input" : "output") + " connections"); return; }
#if UNITY_EDITOR
UnityEditor.Undo.RecordObject(node, "Connect Port");
UnityEditor.Undo.RecordObject(port.node, "Connect Port");
#endif
if (port.connectionType == Node.ConnectionType.Override && port.ConnectionCount != 0) { port.ClearConnections(); }
if (connectionType == Node.ConnectionType.Override && ConnectionCount != 0) { ClearConnections(); }
connections.Add(new PortConnection(port));