/// <summary>
/// Updates the current attribute and compared property references.
/// </summary>
/// <param name="property">The SerializedProperty to make the custom GUI for.</param>
/// <remarks>
/// TODO: Move this code somewhere else as it applies to many attributes.
/// </remarks>
private void UpdateDrawerReferences(SerializedProperty property)
{
_enableIf = (EnableIfAttribute)attribute;
string path = property.propertyPath.Contains(".") ? System.IO.Path.ChangeExtension(property.propertyPath, _enableIf.ComparedPropertyName) : _enableIf.ComparedPropertyName;
_comparedProperty = property.serializedObject.FindProperty(path);
}
public override void DrawProperty(SerializedProperty property)
{
bool drawEnabled = false;
bool validCondition = false;
EnableIfAttribute enableIfAttribute = PropertyUtility.GetAttribute <EnableIfAttribute>(property);
UnityEngine.Object target = PropertyUtility.GetTargetObject(property);
FieldInfo conditionField = ReflectionUtility.GetField(target, enableIfAttribute.ConditionName);
if (conditionField != null &&
conditionField.FieldType == typeof(bool))
{
drawEnabled = (bool)conditionField.GetValue(target);
validCondition = true;
}
MethodInfo conditionMethod = ReflectionUtility.GetMethod(target, enableIfAttribute.ConditionName);
if (conditionMethod != null &&
conditionMethod.ReturnType == typeof(bool) &&
conditionMethod.GetParameters().Length == 0)
{
drawEnabled = (bool)conditionMethod.Invoke(target, null);
validCondition = true;
}
if (validCondition)
{
GUI.enabled = drawEnabled;
EditorDrawUtility.DrawPropertyField(property);
GUI.enabled = true;
}
else
{
string warning = enableIfAttribute.GetType().Name + " needs a valid boolean condition field or method name to work";
EditorGUILayout.HelpBox(warning, MessageType.Warning);
Debug.LogWarning(warning, target);
}
}
public override void DrawProperty(SerializedProperty property)
{
EnableIfAttribute enableIfAttribute = PropertyUtility.GetAttribute <EnableIfAttribute>(property);
UnityEngine.Object target = PropertyUtility.GetTargetObject(property);
List <bool> conditionValues = new List <bool>();
foreach (var condition in enableIfAttribute.Conditions)
{
FieldInfo conditionField = ReflectionUtility.GetField(target, condition);
if (conditionField != null &&
conditionField.FieldType == typeof(bool))
{
conditionValues.Add((bool)conditionField.GetValue(target));
}
MethodInfo conditionMethod = ReflectionUtility.GetMethod(target, condition);
if (conditionMethod != null &&
conditionMethod.ReturnType == typeof(bool) &&
conditionMethod.GetParameters().Length == 0)
{
conditionValues.Add((bool)conditionMethod.Invoke(target, null));
}
}
if (conditionValues.Count > 0)
{
bool enabled;
if (enableIfAttribute.ConditionOperator == ConditionOperator.And)
{
enabled = true;
foreach (var value in conditionValues)
{
enabled = enabled && value;
}
}
else
{
enabled = false;
foreach (var value in conditionValues)
{
enabled = enabled || value;
}
}
if (enableIfAttribute.Reversed)
{
enabled = !enabled;
}
GUI.enabled = enabled;
EditorDrawUtility.DrawPropertyField(property);
GUI.enabled = true;
}
else
{
string warning = enableIfAttribute.GetType().Name + " 作用在一个有效的布尔值字段条件或着一个方法方法名！！";
EditorDrawUtility.DrawHelpBox(warning, MessageType.Warning, context: target);
}
}
