Added lots of examples for editor customization

2026-06-23 18:33:11 +02:00
parent bbb7062c5b
commit 0512201ce0
58 changed files with 920 additions and 116 deletions
@@ -0,0 +1,35 @@
+using UnityEditor;
+using UnityEngine;
+
+namespace Attributes.Editor
+{
+    [CustomPropertyDrawer(typeof(RequiredAttribute))]
+    public class RequiredAttributeDrawer : PropertyDrawer
+    {
+        public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
+        {
+            bool isNull = property.objectReferenceValue == null;
+            
+            if (isNull) position.height = EditorGUIUtility.singleLineHeight;
+            
+            // draw property itself
+            EditorGUI.PropertyField(position, property, label);
+            
+            // draw error if property is null
+            if (!isNull) return;
+            
+            position.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
+            position.height += 10.0f;
+            EditorGUI.HelpBox(position, "Property has to be set!", MessageType.Error);
+        }
+
+        public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
+        {
+            if (property.objectReferenceValue == null)
+            {
+                return EditorGUIUtility.singleLineHeight * 2 + EditorGUIUtility.standardVerticalSpacing + 10.0f;
+            }
+            return EditorGUIUtility.singleLineHeight;
+        }
+    }
+}