/// <summary>
/// Draws the data field.
/// </summary>
/// <param name="position"></param>
/// <param name="property"></param>
/// <param name="label"></param>
protected void DrawDataField(Rect position, SerializedProperty property, GUIContent label)
{
SerializedProperty useConstant = property.FindPropertyRelative("UseConstant");
Event currentEvent = Event.current;
_mouseDragArea.x = position.x;
_mouseDragArea.y = position.y;
_mouseDragArea.width = position.width;
_mouseDragArea.height = EditorGUIUtility.singleLineHeight;
if (_mouseDragArea.Contains(currentEvent.mousePosition))
{
if (currentEvent.type == EventType.DragUpdated)
{
DragAndDrop.visualMode = DragAndDropVisualMode.Copy;
currentEvent.Use();
}
else if (currentEvent.type == EventType.DragPerform && DragAndDrop.objectReferences.Length > 0)
{
Object draggedObject = DragAndDrop.objectReferences[0];
SerializedProperty referenceProperty = property.FindPropertyRelative("VariableType");
Type variableType = TypeExtensions.GetInstanceType(referenceProperty.type);
if (draggedObject.GetType().IsAssignableFrom(variableType))
{
referenceProperty.objectReferenceValue = draggedObject;
useConstant.boolValue = false;
property.serializedObject.ApplyModifiedProperties();
}
currentEvent.Use();
return;
}
}
if (_labelContent == null)
{
_labelContent = new GUIContent(label.text, label.image, label.tooltip);
}
SerializedProperty displayValueChangedProperty = property.FindPropertyRelative("_displayValueChangedEvent");
_displayValueChangedEvent = displayValueChangedProperty.boolValue;
_isConstant = useConstant.boolValue;
label = EditorGUI.BeginProperty(position, GUIContent.none, property);
_currentPosition = EditorGUI.PrefixLabel(position, _labelContent);
_positionWidth = _currentPosition.width;
_currentPosition.width = _positionWidth * 0.2f;
_currentPosition.height = EditorGUIUtility.singleLineHeight;
EditorGUI.LabelField(position, label);
_buttonsRect.x = _currentPosition.x;
_buttonsRect.y = _currentPosition.y;
_buttonsRect.width = _buttonWidth;
_buttonsRect.height = _currentPosition.height;
if (GUI.Button(_buttonsRect, _rButtonContent))
{
_isConstant = false;
}
_buttonsRect.x += _buttonWidth;
if (GUI.Button(_buttonsRect, _vButtonContent))
{
_isConstant = true;
}
if (_isConstant)
{
_buttonsRect.x += _buttonWidth;
_buttonsRect.width += 6f;
// SerializedProperty persistentCalls =
// property.FindPropertyRelative("OnConstantValueChanged._PersistentCalls");
// Color originalColour = GUI.backgroundColor;
// if (GUI.Button(_buttonsRect, $"E{persistentCalls.arraySize}"))
// {
// _displayValueChangedEvent = !_displayValueChangedEvent;
// }
// GUI.backgroundColor = originalColour;
}
_currentPosition.x += _positionWidth * 0.28f;
_currentPosition.width = _positionWidth * 0.72f;
bool propertyIsArray = property.propertyPath.Contains("Array");
if (_isConstant)
{
EditorGUI.BeginChangeCheck();
EditorGUI.PropertyField(_currentPosition, property.FindPropertyRelative("ConstantValueType"),
GUIContent.none);
if (EditorGUI.EndChangeCheck())
{
_invokeChangeEvent = true;
}
_lineHeight = propertyIsArray ? _lineHeight : 0f;
}
else
{
SerializedProperty referenceProperty = property.FindPropertyRelative("VariableType");
bool nullDetected = false;
Color currentColour = Color.white;
if (referenceProperty.propertyType == SerializedPropertyType.ObjectReference)
{
nullDetected = referenceProperty.objectReferenceValue == null;
if (nullDetected)
{
currentColour = GUI.color;
}
}
EditorGUI.PropertyField(_currentPosition, referenceProperty,
GUIContent.none);
if (nullDetected)
{
GUI.color = currentColour;
}
if (!propertyIsArray)
{
Type dataType = property.serializedObject.targetObject.GetType();
FieldInfo fieldData = dataType.GetField(property.propertyPath);
if (fieldData != null)
{
_dataValue = (DataField)fieldData.GetValue(property.serializedObject.targetObject);
}
}
PrimitiveData valueVariable = _dataValue?.GetVariable();
object valueData = valueVariable != null?valueVariable.GetValueData() : null;
if (valueData != null)
{
_currentPosition.y += EditorGUIUtility.singleLineHeight;
_lineHeight = EditorGUIUtility.singleLineHeight;
_currentPosition.width -= 24f;
EditorGUI.LabelField(_currentPosition, valueData.ToString(),
EditorStyles.toolbarButton);
_currentPosition.x += _currentPosition.width + 2;
_currentPosition.width = 22f;
if (GUI.Button(_currentPosition, "→"))
{
Selection.activeObject = valueVariable;
EditorGUIUtility.PingObject(valueVariable);
}
}
else
{
_lineHeight = propertyIsArray ? _lineHeight : 0f;
}
}
if (_displayValueChangedEvent && _isConstant)
{
_currentPosition.x = position.x;
_currentPosition.y += EditorGUIUtility.singleLineHeight;
_currentPosition.width = position.width;
EditorGUI.PropertyField(_currentPosition, property.FindPropertyRelative("OnConstantValueChanged"));
}
EditorGUI.EndProperty();
if (GUI.changed)
{
useConstant.boolValue = _isConstant;
displayValueChangedProperty.boolValue = _displayValueChangedEvent;
property.serializedObject.ApplyModifiedProperties();
if (_invokeChangeEvent)
{
// object dataField = fieldInfo.GetValue(property.serializedObject.targetObject);
// object _event = dataField.GetType().GetField("OnConstantValueChanged").GetValue(dataField);
// MethodInfo invokeMethod = _event.GetType().GetMethod("Invoke");
// invokeMethod.Invoke(_event, new[] {dataField.GetType().GetField("ConstantValueType").GetValue(dataField)});
}
}
}