first commit

Library/PackageCache/com.unity.ugui@1.0.0/Editor/UI/AspectRatioFitterEditor.cs

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+using UnityEngine;
+using UnityEditor.AnimatedValues;
+using UnityEngine.UI;
+
+namespace UnityEditor.UI
+{
+    [CustomEditor(typeof(AspectRatioFitter), true)]
+    [CanEditMultipleObjects]
+    /// <summary>
+    ///   Custom Editor for the AspectRatioFitter component.
+    ///   Extend this class to write a custom editor for a component derived from AspectRatioFitter.
+    /// </summary>
+    public class AspectRatioFitterEditor : SelfControllerEditor
+    {
+        SerializedProperty m_AspectMode;
+        SerializedProperty m_AspectRatio;
+
+
+        AnimBool m_ModeBool;
+        private AspectRatioFitter aspectRatioFitter;
+
+        protected virtual void OnEnable()
+        {
+            m_AspectMode = serializedObject.FindProperty("m_AspectMode");
+            m_AspectRatio = serializedObject.FindProperty("m_AspectRatio");
+            aspectRatioFitter = target as AspectRatioFitter;
+
+            m_ModeBool = new AnimBool(m_AspectMode.intValue != 0);
+            m_ModeBool.valueChanged.AddListener(Repaint);
+        }
+
+        public override void OnInspectorGUI()
+        {
+            serializedObject.Update();
+            EditorGUILayout.PropertyField(m_AspectMode);
+
+            m_ModeBool.target = m_AspectMode.intValue != 0;
+
+            if (EditorGUILayout.BeginFadeGroup(m_ModeBool.faded))
+                EditorGUILayout.PropertyField(m_AspectRatio);
+            EditorGUILayout.EndFadeGroup();
+
+            serializedObject.ApplyModifiedProperties();
+
+            if (aspectRatioFitter)
+            {
+                if (!aspectRatioFitter.IsAspectModeValid())
+                    ShowNoParentWarning();
+                if (!aspectRatioFitter.IsComponentValidOnObject())
+                    ShowCanvasRenderModeInvalidWarning();
+            }
+
+            base.OnInspectorGUI();
+        }
+
+        protected virtual void OnDisable()
+        {
+            aspectRatioFitter = null;
+            m_ModeBool.valueChanged.RemoveListener(Repaint);
+        }
+
+        private static void ShowNoParentWarning()
+        {
+            var text = L10n.Tr("You cannot use this Aspect Mode because this Component's GameObject does not have a parent object.");
+            EditorGUILayout.HelpBox(text, MessageType.Warning, true);
+        }
+
+        private static void ShowCanvasRenderModeInvalidWarning()
+        {
+            var text = L10n.Tr("You cannot use this Aspect Mode because this Component is attached to a Canvas with a fixed width and height.");
+            EditorGUILayout.HelpBox(text, MessageType.Warning, true);
+        }
+    }
+}