A game about forced loneliness, made by TACStudios
tacstudios.tngl.sh
1using UnityEngine;
2using UnityEngine.UI;
3using UnityEditorInternal;
4using UnityEditor.AnimatedValues;
5
6namespace UnityEditor.UI
7{
8 [CustomEditor(typeof(LayoutElement), true)]
9 [CanEditMultipleObjects]
10 /// <summary>
11 /// Custom editor for the LayoutElement component
12 /// Extend this class to write a custom editor for a component derived from LayoutElement.
13 /// </summary>
14 public class LayoutElementEditor : Editor
15 {
16 SerializedProperty m_IgnoreLayout;
17 SerializedProperty m_MinWidth;
18 SerializedProperty m_MinHeight;
19 SerializedProperty m_PreferredWidth;
20 SerializedProperty m_PreferredHeight;
21 SerializedProperty m_FlexibleWidth;
22 SerializedProperty m_FlexibleHeight;
23 SerializedProperty m_LayoutPriority;
24
25 protected virtual void OnEnable()
26 {
27 m_IgnoreLayout = serializedObject.FindProperty("m_IgnoreLayout");
28 m_MinWidth = serializedObject.FindProperty("m_MinWidth");
29 m_MinHeight = serializedObject.FindProperty("m_MinHeight");
30 m_PreferredWidth = serializedObject.FindProperty("m_PreferredWidth");
31 m_PreferredHeight = serializedObject.FindProperty("m_PreferredHeight");
32 m_FlexibleWidth = serializedObject.FindProperty("m_FlexibleWidth");
33 m_FlexibleHeight = serializedObject.FindProperty("m_FlexibleHeight");
34 m_LayoutPriority = serializedObject.FindProperty("m_LayoutPriority");
35 }
36
37 public override void OnInspectorGUI()
38 {
39 serializedObject.Update();
40
41 EditorGUILayout.PropertyField(m_IgnoreLayout);
42
43 if (!m_IgnoreLayout.boolValue)
44 {
45 EditorGUILayout.Space();
46
47 LayoutElementField(m_MinWidth, 0);
48 LayoutElementField(m_MinHeight, 0);
49 LayoutElementField(m_PreferredWidth, t => t.rect.width);
50 LayoutElementField(m_PreferredHeight, t => t.rect.height);
51 LayoutElementField(m_FlexibleWidth, 1);
52 LayoutElementField(m_FlexibleHeight, 1);
53 }
54
55 EditorGUILayout.PropertyField(m_LayoutPriority);
56
57 serializedObject.ApplyModifiedProperties();
58 }
59
60 void LayoutElementField(SerializedProperty property, float defaultValue)
61 {
62 LayoutElementField(property, _ => defaultValue);
63 }
64
65 void LayoutElementField(SerializedProperty property, System.Func<RectTransform, float> defaultValue)
66 {
67 Rect position = EditorGUILayout.GetControlRect();
68
69 // Label
70 GUIContent label = EditorGUI.BeginProperty(position, null, property);
71
72 // Rects
73 Rect fieldPosition = EditorGUI.PrefixLabel(position, label);
74
75 Rect toggleRect = fieldPosition;
76 toggleRect.width = 16;
77
78 Rect floatFieldRect = fieldPosition;
79 floatFieldRect.xMin += 16;
80
81 // Checkbox
82 EditorGUI.BeginChangeCheck();
83 bool enabled = EditorGUI.ToggleLeft(toggleRect, GUIContent.none, property.floatValue >= 0);
84 if (EditorGUI.EndChangeCheck())
85 {
86 // This could be made better to set all of the targets to their initial width, but mimizing code change for now
87 property.floatValue = (enabled ? defaultValue((target as LayoutElement).transform as RectTransform) : -1);
88 }
89
90 if (!property.hasMultipleDifferentValues && property.floatValue >= 0)
91 {
92 // Float field
93 EditorGUIUtility.labelWidth = 4; // Small invisible label area for drag zone functionality
94 EditorGUI.BeginChangeCheck();
95 float newValue = EditorGUI.FloatField(floatFieldRect, new GUIContent(" "), property.floatValue);
96 if (EditorGUI.EndChangeCheck())
97 {
98 property.floatValue = Mathf.Max(0, newValue);
99 }
100 EditorGUIUtility.labelWidth = 0;
101 }
102
103 EditorGUI.EndProperty();
104 }
105 }
106}