public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
{
ConditionalAttribute condHAtt = (ConditionalAttribute)this.attribute;
bool showProperty = ShouldShowProperty(condHAtt, property);
if (showProperty)
{
return(EditorGUI.GetPropertyHeight(property, label));
}
else
{
return(-EditorGUIUtility.standardVerticalSpacing);
}
}
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
Debug.Log("Show: ");
ConditionalAttribute condHAtt = (ConditionalAttribute)this.attribute;
bool showProperty = ShouldShowProperty(condHAtt, property);
bool wasEnabled = GUI.enabled;
GUI.enabled = showProperty;
if (showProperty)
{
EditorGUI.PropertyField(position, property, label, true);
}
GUI.enabled = wasEnabled;
}
private bool ShouldShowProperty(ConditionalAttribute attribute, SerializedProperty property)
{
bool isTrue = true;
SerializedProperty sourcePropertyValue =
property.serializedObject.FindProperty(attribute.ConditionalSourceField);
if (sourcePropertyValue != null)
{
switch (sourcePropertyValue.propertyType)
{
case SerializedPropertyType.Boolean:
isTrue = sourcePropertyValue.boolValue;
break;
case SerializedPropertyType.ObjectReference:
isTrue = sourcePropertyValue.objectReferenceValue != null;
break;
case SerializedPropertyType.Enum:
if (attribute.SpecificValue != null)
{
isTrue = false;
foreach (object value in attribute.SpecificValue)
{
int enumValue = (int)Convert.ChangeType(value, TypeCode.Int32);
isTrue = (sourcePropertyValue.enumValueIndex == enumValue);
if (isTrue)
{
break;
}
}
}
break;
}
}
else
{
object parent = GetParent(property);
Type eventOwnerType = parent.GetType();
FieldInfo reflectedProperty = eventOwnerType.GetField(attribute.ConditionalSourceField);
if (reflectedProperty != null)
{
object reflectedValue = reflectedProperty.GetValue(parent);
if (reflectedValue is bool)
{
isTrue = (bool)reflectedValue;
}
else if (attribute.SpecificValue != null)
{
if (reflectedValue is Enum)
{
isTrue = false;
int reflectedEnumValue = (int)Convert.ChangeType(reflectedValue, TypeCode.Int32);
foreach (object value in attribute.SpecificValue)
{
int enumValue = (int)Convert.ChangeType(value, TypeCode.Int32);
isTrue = (reflectedEnumValue == enumValue);
if (isTrue)
{
break;
}
}
}
else
{
Debug.Log("SpecificValue must currently be an enum.");
}
}
else
{
isTrue = reflectedValue != null;
}
}
else
{
Debug.LogError(
"Attempting to use a ConditionalAttribute, but \""
+ attribute.ConditionalSourceField
+ "\" not found in " + GetParent(property).GetType() +
". Is the inspect object nested in an array?");
}
}
if (attribute.HideInInspectorIfTrue)
{
return(!isTrue);
}
return(isTrue);
}