Merge pull request #219 from LumosX/global-drawers

Generic "Edit graph" button for node and graph inspectors

Scripts/Editor/GraphAndNodeEditor.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Reflection;
+using UnityEditor;
+using UnityEngine;
+
+namespace XNodeEditor {
+    /// <summary> Override graph inspector to show an 'Open Graph' button at the top </summary>
+    [CustomEditor(typeof(XNode.NodeGraph), true)]
+    public class GlobalGraphEditor : Editor {
+        public override void OnInspectorGUI() {
+            serializedObject.Update();
+
+            if (GUILayout.Button("Edit graph", GUILayout.Height(40))) {
+                NodeEditorWindow.Open(serializedObject.targetObject as XNode.NodeGraph);
+            }
+
+            GUILayout.Space(EditorGUIUtility.singleLineHeight);
+            GUILayout.Label("Raw data", "BoldLabel");
+
+            DrawDefaultInspector();
+
+            serializedObject.ApplyModifiedProperties();
+        }
+    }
+
+    [CustomEditor(typeof(XNode.Node), true)]
+    public class GlobalNodeEditor : Editor {
+        public override void OnInspectorGUI() {
+            serializedObject.Update();
+
+            if (GUILayout.Button("Edit graph", GUILayout.Height(40))) {
+                SerializedProperty graphProp = serializedObject.FindProperty("graph");
+                NodeEditorWindow w = NodeEditorWindow.Open(graphProp.objectReferenceValue as XNode.NodeGraph);
+                w.Home(); // Focus selected node
+            }
+
+            GUILayout.Space(EditorGUIUtility.singleLineHeight);
+            GUILayout.Label("Raw data", "BoldLabel");
+
+            // Now draw the node itself.
+            DrawDefaultInspector();
+
+            serializedObject.ApplyModifiedProperties();
+        }
+    }
+}

Scripts/Editor/GraphAndNodeEditor.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: bdd6e443125ccac4dad0665515759637
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Scripts/Editor/NodeEditorWindow.cs

@@ -187,12 +187,13 @@ namespace XNodeEditor {
         }
 
         /// <summary>Open the provided graph in the NodeEditor</summary>
-        public static void Open(XNode.NodeGraph graph) {
+        public static NodeEditorWindow Open(XNode.NodeGraph graph) {
-            if (!graph) return;
+            if (!graph) return null;
 
             NodeEditorWindow w = GetWindow(typeof(NodeEditorWindow), false, "xNode", true) as NodeEditorWindow;
             w.wantsMouseMove = true;
             w.graph = graph;
+            return w;
         }
 
         /// <summary> Repaint all open NodeEditorWindows. </summary>