Class EnableIfDrawer

Custom PropertyDrawer for the EnableIfAttribute.

Inheritance
object
GUIDrawer
PropertyDrawer
ConditionalDrawerBase
EnableIfDrawer
Inherited Members
PropertyDrawer.attribute
PropertyDrawer.fieldInfo
PropertyDrawer.preferredLabel
Namespace: Scylla.Core.Editor.Attributes
Assembly: ScyllaCore.Editor.dll
Syntax
[CustomPropertyDrawer(typeof(EnableIfAttribute))]
public sealed class EnableIfDrawer : ConditionalDrawerBase
Remarks

Makes the decorated property field editable only when the condition defined on the attribute evaluates to true. When the condition is false, the field is always visible but grayed out and non-interactive.

This is the inverse of DisableIfDrawer. Condition evaluation is delegated to EvaluateCondition(SerializedProperty), which supports boolean truthiness checks as well as explicit value comparisons via CompareOperator.

Methods

CreatePropertyGUI(SerializedProperty)

Creates custom GUI with UI Toolkit for the property.

Declaration
public override VisualElement CreatePropertyGUI(SerializedProperty property)
Parameters
Type Name Description
SerializedProperty property

The SerializedProperty to make the custom GUI for.
Returns
Type Description
VisualElement

The element containing the custom GUI.
Overrides
UnityEditor.PropertyDrawer.CreatePropertyGUI(UnityEditor.SerializedProperty)

GetPropertyHeight(SerializedProperty, GUIContent)

Returns the full height of the property field regardless of the enabled state, since a disabled field still occupies the same vertical space as an enabled one.

Declaration
public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
Parameters
Type Name Description
SerializedProperty property

The UnityEditor.SerializedProperty to calculate the height for.
GUIContent label

The label of this property.
Returns
Type Description
float

The height returned by GetPropertyHeight(SerializedProperty, GUIContent, bool) with children included.
Overrides
UnityEditor.PropertyDrawer.GetPropertyHeight(UnityEditor.SerializedProperty, UnityEngine.GUIContent)

OnGUI(Rect, SerializedProperty, GUIContent)

Draws the property field normally when the condition is true, or inside a UnityEditor.EditorGUI.DisabledGroupScope (grayed out) when the condition is false.

Declaration
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
Parameters
Type Name Description
Rect position

Rectangle on the screen to use for the property GUI.
SerializedProperty property

The UnityEditor.SerializedProperty to make the custom GUI for.
GUIContent label

The label of this property.
Overrides
UnityEditor.PropertyDrawer.OnGUI(UnityEngine.Rect, UnityEditor.SerializedProperty, UnityEngine.GUIContent)

Extension Methods