protected void OnGUI()
{
if (_system == null)
{
return;
}
// Not sure why the magic numbers on size are needed to make the scrollbars appear in the correct place....
_scrollPosition = GUI.BeginScrollView(new Rect(0, 0, Screen.width - 4, Screen.height - 21), _scrollPosition, new Rect(0, 0, 5000, 5000), true, true);
Event evt = Event.current;
if (evt.type == EventType.MouseDrag)
{
Repaint();
}
_connections.Clear();
foreach (MonoBehaviour component in _system.gameObject.GetComponents <MonoBehaviour>())
{
Type componentType = component.GetType();
GraphNodeAttribute[] nodeAttributes = componentType.GetCustomAttributes(typeof(GraphNodeAttribute), false) as GraphNodeAttribute[];
if (nodeAttributes != null)
{
bool hasSystem = false;
foreach (GraphNodeAttribute attribute in nodeAttributes)
{
if (attribute.System == _systemName)
{
hasSystem = true;
break;
}
}
if (!hasSystem)
{
continue;
}
GraphNodeData nodeData = _graphData.GetNodeData(component);
_areaRect = new Rect(nodeData.Position.x, nodeData.Position.y, nodeData.Width, 1000);
GUILayout.BeginArea(_areaRect);
GUILayout.Box(ObjectNames.NicifyVariableName(componentType.Name), GUILayout.ExpandWidth(true));
if (evt.type == EventType.ContextClick && GUILayoutUtility.GetLastRect().Contains(Event.current.mousePosition))
{
GenericMenu menu = new GenericMenu();
menu.AddItem(new GUIContent("Delete"), false, (object data) => { DestroyImmediate(data as MonoBehaviour, false); },
component);
menu.ShowAsContext();
evt.Use();
}
if (evt.type == EventType.MouseDown && GUILayoutUtility.GetLastRect().Contains(Event.current.mousePosition) &&
_dragItem == null)
{
_dragItem = component;
}
if (evt.type == EventType.MouseDrag && _dragItem == component)
{
nodeData.Position += Event.current.delta;
Event.current.Use();
}
GUILayout.Box("", GUILayout.ExpandWidth(true));
if (evt.type == EventType.MouseUp && GUILayoutUtility.GetLastRect().Contains(Event.current.mousePosition) &&
_dragConnectionComponent != null)
{
if (EditorHelpers.IsSubclassOfRawGeneric(_dragConnectionField.FieldType, component.GetType()))
{
_dragConnectionField.SetValue(_dragConnectionComponent, component);
}
}
string description = component.ToString();
// ) is the last character on the default ToString... there's probably a better way of doing this, without requiring a custom method on every node
if (!string.IsNullOrEmpty(description) && description[description.Length - 1] != ')')
{
GUI.skin.label.wordWrap = true;
GUILayout.Label(description, GUILayout.ExpandWidth(true));
}
List <FieldInfo> componentFields = new List <FieldInfo>();
EditorHelpers.FindFields(componentFields, componentType);
foreach (FieldInfo field in componentFields)
{
GraphConnectionAttribute[] connectionAttributes = field.GetCustomAttributes(typeof(GraphConnectionAttribute), false) as GraphConnectionAttribute[];
if (connectionAttributes != null && connectionAttributes.Length > 0)
{
GUILayout.BeginHorizontal(GUILayout.ExpandWidth(true));
if (connectionAttributes[0].Direction == GraphConnectionAttribute.DirectionType.In)
{
DoConnectionBox(component, field);
}
else
{
GUILayout.Space(24);
}
GUILayout.FlexibleSpace();
GUILayout.Label(ObjectNames.NicifyVariableName(field.Name), GUILayout.ExpandWidth(true));
GUILayout.FlexibleSpace();
if (connectionAttributes[0].Direction == GraphConnectionAttribute.DirectionType.Out)
{
DoConnectionBox(component, field);
}
else
{
GUILayout.Space(24);
}
GUILayout.EndHorizontal();
}
}
nodeData.ShowInspector = EditorGUILayout.Foldout(nodeData.ShowInspector, "Inspector");
if (nodeData.ShowInspector)
{
var editor = Editor.CreateEditor(component);
editor.OnInspectorGUI();
}
GUILayout.EndArea();
}
}
foreach (var connection in _connections)
{
GraphNodeData graphData = _graphData.GetNodeData(connection.Value);
if (graphData != null)
{
if (connection.Key.x > graphData.Position.x)
{
DrawLine(connection.Key, graphData.Position + new Vector2(graphData.Width, 32));
}
else
{
DrawLine(connection.Key, graphData.Position + new Vector2(0, 32));
}
}
}
if (_dragConnectionComponent != null)
{
DrawLine(_dragConnectionPosition, Event.current.mousePosition);
}
if (evt.type == EventType.MouseUp)
{
_dragItem = null;
_dragConnectionComponent = null;
_dragConnectionField = null;
Repaint();
}
if (evt.type == EventType.ContextClick)
{
_mousePosition = evt.mousePosition;
GenericMenu menu = new GenericMenu();
menu.AddSeparator("Add New Item");
Assembly assembly = typeof(Realtime).Assembly;
foreach (Type type in assembly.GetTypes())
{
object[] attributes = type.GetCustomAttributes(false);
foreach (Attribute attribute in attributes)
{
GraphNodeAttribute graphNode = attribute as GraphNodeAttribute;
if (graphNode != null && graphNode.System == _systemName)
{
menu.AddItem(new GUIContent(graphNode.Type + "/" + graphNode.Name), false, OnMenuItemClicked, type);
break;
}
}
}
menu.ShowAsContext();
evt.Use();
}
GUI.EndScrollView();
_graphData.Clean();
EditorUtility.SetDirty(_system.gameObject);
}