1 files changed, 123 insertions, 0 deletions
diff --git a/Assets/uGUI-2017.1/Editor/UI/LayoutPropertiesPreview.cs b/Assets/uGUI-2017.1/Editor/UI/LayoutPropertiesPreview.cs
new file mode 100644
index 0000000..6f93c98
--- /dev/null
+++ b/Assets/uGUI-2017.1/Editor/UI/LayoutPropertiesPreview.cs
@@ -0,0 +1,123 @@
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace UnityEditor.Events
+{
+    [CustomPreview(typeof(GameObject))]
+    class LayoutPropertiesPreview : ObjectPreview
+    {
+        private const float kLabelWidth = 110;
+        private const float kValueWidth = 100;
+
+        class Styles
+        {
+            public GUIStyle labelStyle = new GUIStyle(EditorStyles.label);
+            public GUIStyle headerStyle = new GUIStyle(EditorStyles.boldLabel);
+
+            public Styles()
+            {
+                Color fontColor = new Color(0.7f, 0.7f, 0.7f);
+                labelStyle.padding.right += 4;
+                labelStyle.normal.textColor = fontColor;
+                headerStyle.padding.right += 4;
+                headerStyle.normal.textColor = fontColor;
+            }
+        }
+
+        private GUIContent m_Title;
+        private Styles m_Styles = new Styles();
+
+        public override void Initialize(UnityEngine.Object[] targets)
+        {
+            base.Initialize(targets);
+        }
+
+        public override GUIContent GetPreviewTitle()
+        {
+            if (m_Title == null)
+            {
+                m_Title = new GUIContent("Layout Properties");
+            }
+            return m_Title;
+        }
+
+        public override bool HasPreviewGUI()
+        {
+            GameObject go = target as GameObject;
+            if (!go)
+                return false;
+            return go.GetComponent(typeof(ILayoutElement)) != null;
+        }
+
+        public override void OnPreviewGUI(Rect r, GUIStyle background)
+        {
+            if (Event.current.type != EventType.Repaint)
+                return;
+
+            if (m_Styles == null)
+                m_Styles = new Styles();
+
+            GameObject go = target as GameObject;
+            RectTransform rect = go.transform as RectTransform;
+            if (rect == null)
+                return;
+
+            // Apply padding
+            RectOffset previewPadding = new RectOffset(-5, -5, -5, -5);
+            r = previewPadding.Add(r);
+
+            // Prepare rects for columns
+            r.height = EditorGUIUtility.singleLineHeight;
+            Rect labelRect = r;
+            Rect valueRect = r;
+            Rect sourceRect = r;
+            labelRect.width = kLabelWidth;
+            valueRect.xMin += kLabelWidth;
+            valueRect.width = kValueWidth;
+            sourceRect.xMin += kLabelWidth + kValueWidth;
+
+            // Headers
+            GUI.Label(labelRect, "Property", m_Styles.headerStyle);
+            GUI.Label(valueRect, "Value", m_Styles.headerStyle);
+            GUI.Label(sourceRect, "Source", m_Styles.headerStyle);
+            labelRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
+            valueRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
+            sourceRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
+
+            // Prepare reusable variable for out argument
+            ILayoutElement source = null;
+
+            // Show properties
+
+            ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Min Width", LayoutUtility.GetLayoutProperty(rect, e => e.minWidth, 0, out source).ToString(), source);
+            ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Min Height", LayoutUtility.GetLayoutProperty(rect, e => e.minHeight, 0, out source).ToString(), source);
+            ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Preferred Width", LayoutUtility.GetLayoutProperty(rect, e => e.preferredWidth, 0, out source).ToString(), source);
+            ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Preferred Height", LayoutUtility.GetLayoutProperty(rect, e => e.preferredHeight, 0, out source).ToString(), source);
+
+            float flexible = 0;
+
+            flexible = LayoutUtility.GetLayoutProperty(rect, e => e.flexibleWidth, 0, out source);
+            ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Flexible Width", flexible > 0 ? ("enabled (" + flexible.ToString() + ")") : "disabled", source);
+            flexible = LayoutUtility.GetLayoutProperty(rect, e => e.flexibleHeight, 0, out source);
+            ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Flexible Height", flexible > 0 ? ("enabled (" + flexible.ToString() + ")") : "disabled", source);
+
+            if (!rect.GetComponent<LayoutElement>())
+            {
+                Rect noteRect = new Rect(labelRect.x, labelRect.y + 10, r.width, EditorGUIUtility.singleLineHeight);
+                GUI.Label(noteRect, "Add a LayoutElement to override values.", m_Styles.labelStyle);
+            }
+        }
+
+        private void ShowProp(ref Rect labelRect, ref Rect valueRect, ref Rect sourceRect, string label, string value, ILayoutElement source)
+        {
+            GUI.Label(labelRect, label, m_Styles.labelStyle);
+            GUI.Label(valueRect, value, m_Styles.labelStyle);
+            GUI.Label(sourceRect, source == null ? "none" : source.GetType().Name, m_Styles.labelStyle);
+            labelRect.y += EditorGUIUtility.singleLineHeight;
+            valueRect.y += EditorGUIUtility.singleLineHeight;
+            sourceRect.y += EditorGUIUtility.singleLineHeight;
+        }
+    }
+}