private static ReorderableList CreateReorderableList(List <XNode.NodePort> instancePorts, SerializedProperty arrayData, Type type, SerializedObject serializedObject, XNode.NodePort.IO io, string label, XNode.ConnectionType connectionType = XNode.ConnectionType.Multiple)
{
bool hasArrayData = arrayData != null && arrayData.isArray;
int arraySize = hasArrayData ? arrayData.arraySize : 0;
var node = serializedObject.targetObject as XNode.INode;
ReorderableList list = new ReorderableList(instancePorts, null, true, true, true, true);
list.drawElementCallback =
(Rect rect, int index, bool isActive, bool isFocused) => {
XNode.NodePort port = node.GetPort(arrayData.name + " " + index);
if (hasArrayData)
{
if (arrayData.arraySize <= index)
{
EditorGUI.LabelField(rect, "Invalid element " + index);
return;
}
SerializedProperty itemData = arrayData.GetArrayElementAtIndex(index);
EditorGUI.PropertyField(rect, itemData);
}
else
{
EditorGUI.LabelField(rect, port.fieldName);
}
Vector2 pos = rect.position + (port.IsOutput?new Vector2(rect.width + 6, 0) : new Vector2(-36, 0));
NodeEditorGUILayout.PortField(pos, port);
};
list.elementHeightCallback =
(int index) => {
if (hasArrayData)
{
if (arrayData.arraySize <= index)
{
return(EditorGUIUtility.singleLineHeight);
}
SerializedProperty itemData = arrayData.GetArrayElementAtIndex(index);
return(EditorGUI.GetPropertyHeight(itemData));
}
else
{
return(EditorGUIUtility.singleLineHeight);
}
};
list.drawHeaderCallback =
(Rect rect) => {
EditorGUI.LabelField(rect, label);
};
list.onSelectCallback =
(ReorderableList rl) => {
reorderableListIndex = rl.index;
};
list.onReorderCallback =
(ReorderableList rl) => {
// Move up
if (rl.index > reorderableListIndex)
{
for (int i = reorderableListIndex; i < rl.index; ++i)
{
XNode.NodePort port = node.GetPort(arrayData.name + " " + i);
XNode.NodePort nextPort = node.GetPort(arrayData.name + " " + (i + 1));
port.SwapConnections(nextPort);
// Swap cached positions to mitigate twitching
Rect rect = NodeEditorWindow.current.portConnectionPoints[port];
NodeEditorWindow.current.portConnectionPoints[port] = NodeEditorWindow.current.portConnectionPoints[nextPort];
NodeEditorWindow.current.portConnectionPoints[nextPort] = rect;
}
}
// Move down
else
{
for (int i = reorderableListIndex; i > rl.index; --i)
{
XNode.NodePort port = node.GetPort(arrayData.name + " " + i);
XNode.NodePort nextPort = node.GetPort(arrayData.name + " " + (i - 1));
port.SwapConnections(nextPort);
// Swap cached positions to mitigate twitching
Rect rect = NodeEditorWindow.current.portConnectionPoints[port];
NodeEditorWindow.current.portConnectionPoints[port] = NodeEditorWindow.current.portConnectionPoints[nextPort];
NodeEditorWindow.current.portConnectionPoints[nextPort] = rect;
}
}
// Apply changes
serializedObject.ApplyModifiedProperties();
serializedObject.Update();
// Move array data if there is any
if (hasArrayData)
{
arrayData.MoveArrayElement(reorderableListIndex, rl.index);
}
// Apply changes
serializedObject.ApplyModifiedProperties();
serializedObject.Update();
NodeEditorWindow.current.Repaint();
EditorApplication.delayCall += NodeEditorWindow.current.Repaint;
};
list.onAddCallback =
(ReorderableList rl) => {
// Add instance port postfixed with an index number
string newName = arrayData.name + " 0";
int i = 0;
while (node.HasPort(newName))
{
newName = arrayData.name + " " + (++i);
}
if (io == XNode.NodePort.IO.Output)
{
node.AddInstanceOutput(type, connectionType, newName);
}
else
{
node.AddInstanceInput(type, connectionType, newName);
}
serializedObject.Update();
EditorUtility.SetDirty(node as UnityEngine.Object);
if (hasArrayData)
{
arrayData.InsertArrayElementAtIndex(arraySize);
}
serializedObject.ApplyModifiedProperties();
};
list.onRemoveCallback =
(ReorderableList rl) => {
int index = rl.index;
// Clear the removed ports connections
instancePorts[index].ClearConnections();
// Move following connections one step up to replace the missing connection
for (int k = index + 1; k < instancePorts.Count(); k++)
{
for (int j = 0; j < instancePorts[k].ConnectionCount; j++)
{
XNode.NodePort other = instancePorts[k].GetConnection(j);
instancePorts[k].Disconnect(other);
instancePorts[k - 1].Connect(other);
}
}
// Remove the last instance port, to avoid messing up the indexing
node.RemoveInstancePort(instancePorts[instancePorts.Count() - 1].fieldName);
serializedObject.Update();
EditorUtility.SetDirty(node as UnityEngine.Object);
if (hasArrayData)
{
arrayData.DeleteArrayElementAtIndex(index);
arraySize--;
// Error handling. If the following happens too often, file a bug report at https://github.com/Siccity/xNode/issues
if (instancePorts.Count <= arraySize)
{
while (instancePorts.Count <= arraySize)
{
arrayData.DeleteArrayElementAtIndex(--arraySize);
}
Debug.LogWarning("Array size exceeded instance ports size. Excess items removed.");
}
serializedObject.ApplyModifiedProperties();
serializedObject.Update();
}
};
if (hasArrayData)
{
int instancePortCount = instancePorts.Count;
while (instancePortCount < arraySize)
{
// Add instance port postfixed with an index number
string newName = arrayData.name + " 0";
int i = 0;
while (node.HasPort(newName))
{
newName = arrayData.name + " " + (++i);
}
if (io == XNode.NodePort.IO.Output)
{
node.AddInstanceOutput(type, connectionType, newName);
}
else
{
node.AddInstanceInput(type, connectionType, newName);
}
EditorUtility.SetDirty(node as UnityEngine.Object);
instancePortCount++;
}
while (arraySize < instancePortCount)
{
arrayData.InsertArrayElementAtIndex(arraySize);
arraySize++;
}
serializedObject.ApplyModifiedProperties();
serializedObject.Update();
}
if (onCreateReorderableList != null)
{
onCreateReorderableList(list);
}
return(list);
}
/// <summary> Draw an editable list of instance ports. Port names are named as "[fieldName] [index]" </summary>
/// <param name="fieldName">Supply a list for editable values</param>
/// <param name="type">Value type of added instance ports</param>
/// <param name="serializedObject">The serializedObject of the node</param>
/// <param name="connectionType">Connection type of added instance ports</param>
public static void InstancePortList(string fieldName, Type type, SerializedObject serializedObject, XNode.NodePort.IO io, XNode.ConnectionType connectionType = XNode.ConnectionType.Multiple)
{
var node = serializedObject.targetObject as XNode.INode;
SerializedProperty arrayData = serializedObject.FindProperty(fieldName);
Predicate <string> isMatchingInstancePort =
x => {
string[] split = x.Split(' ');
if (split != null && split.Length == 2)
{
return(split[0] == fieldName);
}
else
{
return(false);
}
};
List <XNode.NodePort> instancePorts = node.InstancePorts.Where(x => isMatchingInstancePort(x.fieldName)).OrderBy(x => x.fieldName).ToList();
ReorderableList list = null;
Dictionary <string, ReorderableList> rlc;
if (reorderableListCache.TryGetValue(serializedObject.targetObject, out rlc))
{
if (!rlc.TryGetValue(fieldName, out list))
{
list = null;
}
}
// If a ReorderableList isn't cached for this array, do so.
if (list == null)
{
string label = serializedObject.FindProperty(fieldName).displayName;
list = CreateReorderableList(instancePorts, arrayData, type, serializedObject, io, label, connectionType);
if (reorderableListCache.TryGetValue(serializedObject.targetObject, out rlc))
{
rlc.Add(fieldName, list);
}
else
{
reorderableListCache.Add(serializedObject.targetObject, new Dictionary <string, ReorderableList>()
{
{ fieldName, list }
});
}
}
list.list = instancePorts;
list.DoLayoutList();
}
/// <summary> Make a field for a serialized property. Manual node port override. </summary>
public static void PropertyField(SerializedProperty property, GUIContent label, XNode.NodePort port, bool includeChildren = true, params GUILayoutOption[] options)
{
if (property == null)
{
throw new NullReferenceException();
}
// If property is not a port, display a regular property field
if (port == null)
{
EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30));
}
else
{
Rect rect = new Rect();
float spacePadding = 0;
SpaceAttribute spaceAttribute;
if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out spaceAttribute))
{
spacePadding = spaceAttribute.height;
}
// If property is an input, display a regular property field and put a port handle on the left side
if (port.direction == XNode.NodePort.IO.Input)
{
// Get data from [Input] attribute
XNode.ShowBackingValue showBacking = XNode.ShowBackingValue.Unconnected;
XNode.InputAttribute inputAttribute;
bool instancePortList = false;
if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out inputAttribute))
{
instancePortList = inputAttribute.instancePortList;
showBacking = inputAttribute.backingValue;
}
//Call GUILayout.Space if Space attribute is set and we are NOT drawing a PropertyField
bool useLayoutSpace = instancePortList ||
showBacking == XNode.ShowBackingValue.Never ||
(showBacking == XNode.ShowBackingValue.Unconnected && port.IsConnected);
if (spacePadding > 0 && useLayoutSpace)
{
GUILayout.Space(spacePadding);
spacePadding = 0;
}
if (instancePortList)
{
Type type = GetType(property);
XNode.ConnectionType connectionType = inputAttribute != null ? inputAttribute.connectionType : XNode.ConnectionType.Multiple;
InstancePortList(property.name, type, property.serializedObject, port.direction, connectionType);
return;
}
switch (showBacking)
{
case XNode.ShowBackingValue.Unconnected:
// Display a label if port is connected
if (port.IsConnected)
{
EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName));
}
// Display an editable property field if port is not connected
else
{
EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30));
}
break;
case XNode.ShowBackingValue.Never:
// Display a label
EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName));
break;
case XNode.ShowBackingValue.Always:
// Display an editable property field
EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30));
break;
}
rect = GUILayoutUtility.GetLastRect();
rect.position = rect.position - new Vector2(16, -spacePadding);
// If property is an output, display a text label and put a port handle on the right side
}
else if (port.direction == XNode.NodePort.IO.Output)
{
// Get data from [Output] attribute
XNode.ShowBackingValue showBacking = XNode.ShowBackingValue.Unconnected;
XNode.OutputAttribute outputAttribute;
bool instancePortList = false;
if (NodeEditorUtilities.GetCachedAttrib(port.node.GetType(), property.name, out outputAttribute))
{
instancePortList = outputAttribute.instancePortList;
showBacking = outputAttribute.backingValue;
}
//Call GUILayout.Space if Space attribute is set and we are NOT drawing a PropertyField
bool useLayoutSpace = instancePortList ||
showBacking == XNode.ShowBackingValue.Never ||
(showBacking == XNode.ShowBackingValue.Unconnected && port.IsConnected);
if (spacePadding > 0 && useLayoutSpace)
{
GUILayout.Space(spacePadding);
spacePadding = 0;
}
if (instancePortList)
{
Type type = GetType(property);
XNode.ConnectionType connectionType = outputAttribute != null ? outputAttribute.connectionType : XNode.ConnectionType.Multiple;
InstancePortList(property.name, type, property.serializedObject, port.direction, connectionType);
return;
}
switch (showBacking)
{
case XNode.ShowBackingValue.Unconnected:
// Display a label if port is connected
if (port.IsConnected)
{
EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName), NodeEditorResources.OutputPort, GUILayout.MinWidth(30));
}
// Display an editable property field if port is not connected
else
{
EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30));
}
break;
case XNode.ShowBackingValue.Never:
// Display a label
EditorGUILayout.LabelField(label != null ? label : new GUIContent(property.displayName), NodeEditorResources.OutputPort, GUILayout.MinWidth(30));
break;
case XNode.ShowBackingValue.Always:
// Display an editable property field
EditorGUILayout.PropertyField(property, label, includeChildren, GUILayout.MinWidth(30));
break;
}
rect = GUILayoutUtility.GetLastRect();
rect.position = rect.position + new Vector2(rect.width, spacePadding);
}
rect.size = new Vector2(16, 16);
Color backgroundColor = new Color32(90, 97, 105, 255);
Color tint;
if (NodeEditorWindow.nodeTint.TryGetValue(port.node.GetType(), out tint))
{
backgroundColor *= tint;
}
Color col = NodeEditorWindow.current.graphEditor.GetTypeColor(port.ValueType);
DrawPortHandle(rect, backgroundColor, col);
// Register the handle position
Vector2 portPos = rect.center;
if (NodeEditor.portPositions.ContainsKey(port))
{
NodeEditor.portPositions[port] = portPos;
}
else
{
NodeEditor.portPositions.Add(port, portPos);
}
}
}
public static void InstancePortList(string fieldName, Type type, SerializedObject serializedObject, XNode.ConnectionType connectionType = XNode.ConnectionType.Multiple)
{
InstancePortList(fieldName, type, serializedObject, XNode.NodePort.IO.Output, connectionType);
}
