コード例 #1
0
        public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
        {
            if (popupStyle == null)
            {
                popupStyle = new GUIStyle(GUI.skin.GetStyle("PaneOptions"));
                popupStyle.imagePosition = ImagePosition.ImageOnly;
            }

            label    = EditorGUI.BeginProperty(position, label, property);
            position = EditorGUI.PrefixLabel(position, label);

            EditorGUI.BeginChangeCheck();

            // Calculate rect for configuration button
            Rect buttonRect = new Rect(position);

            buttonRect.yMin += popupStyle.margin.top;
            buttonRect.width = popupStyle.fixedWidth + popupStyle.margin.right;
            buttonRect.x    -= 20;

            position.xMin = buttonRect.xMax;

            // Store old indent level and set it to 0, the PrefixLabel takes care of it
            int indent = EditorGUI.indentLevel;

            EditorGUI.indentLevel = 0;


            if (Instances == null || Instances.Count == 0)
            {
                var      NameOfType = MalbersEditor.GetPropertyType(property);
                string[] guids      = AssetDatabase.FindAssets("t:" + NameOfType); //FindAssets uses tags check documentation for more info
                //  Debug.Log("ONNCE");
                Instances    = new List <IDs>();
                popupOptions = new List <string>();
                popupOptions.Add("None");

                for (int i = 0; i < guids.Length; i++)         //probably could get optimized
                {
                    string path = AssetDatabase.GUIDToAssetPath(guids[i]);
                    var    inst = AssetDatabase.LoadAssetAtPath <IDs>(path);
                    Instances.Add(inst);
                    popupOptions.Add(inst.name);
                }
            }
            var PropertyValue = property.objectReferenceValue;

            //  Debug.Log(PropertyValue);
            int result = 0;

            if (PropertyValue != null)
            {
                result = Instances.FindIndex(i => i.name == PropertyValue.name) + 1;
            }


            result = EditorGUI.Popup(buttonRect, result, popupOptions.ToArray(), popupStyle);

            if (result == 0)
            {
                property.objectReferenceValue = null;
            }
            else
            {
                var NewSelection = Instances[result - 1];
                property.objectReferenceValue = NewSelection;
            }

            //Select the Instance of the selection

            // position.x += 20;
            // position.width -= 20;

            EditorGUI.PropertyField(position, property, GUIContent.none, false);

            if (EditorGUI.EndChangeCheck())
            {
                property.serializedObject.ApplyModifiedProperties();
            }

            EditorGUI.indentLevel = indent;
            EditorGUI.EndProperty();
        }