File size: 8,492 Bytes
18a519f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | using UnityEngine;
using UnityEngine.UI;
using UnityEditor.AnimatedValues;
namespace UnityEditor.UI
{
[CustomEditor(typeof(ScrollRect), true)]
[CanEditMultipleObjects]
/// <summary>
/// Custom Editor for the ScrollRect Component.
/// Extend this class to write a custom editor for a component derived from ScrollRect.
/// </summary>
public class ScrollRectEditor : Editor
{
SerializedProperty m_Content;
SerializedProperty m_Horizontal;
SerializedProperty m_Vertical;
SerializedProperty m_MovementType;
SerializedProperty m_Elasticity;
SerializedProperty m_Inertia;
SerializedProperty m_DecelerationRate;
SerializedProperty m_ScrollSensitivity;
SerializedProperty m_Viewport;
SerializedProperty m_HorizontalScrollbar;
SerializedProperty m_VerticalScrollbar;
SerializedProperty m_HorizontalScrollbarVisibility;
SerializedProperty m_VerticalScrollbarVisibility;
SerializedProperty m_HorizontalScrollbarSpacing;
SerializedProperty m_VerticalScrollbarSpacing;
SerializedProperty m_OnValueChanged;
AnimBool m_ShowElasticity;
AnimBool m_ShowDecelerationRate;
bool m_ViewportIsNotChild, m_HScrollbarIsNotChild, m_VScrollbarIsNotChild;
static string s_HError = "For this visibility mode, the Viewport property and the Horizontal Scrollbar property both needs to be set to a Rect Transform that is a child to the Scroll Rect.";
static string s_VError = "For this visibility mode, the Viewport property and the Vertical Scrollbar property both needs to be set to a Rect Transform that is a child to the Scroll Rect.";
protected virtual void OnEnable()
{
m_Content = serializedObject.FindProperty("m_Content");
m_Horizontal = serializedObject.FindProperty("m_Horizontal");
m_Vertical = serializedObject.FindProperty("m_Vertical");
m_MovementType = serializedObject.FindProperty("m_MovementType");
m_Elasticity = serializedObject.FindProperty("m_Elasticity");
m_Inertia = serializedObject.FindProperty("m_Inertia");
m_DecelerationRate = serializedObject.FindProperty("m_DecelerationRate");
m_ScrollSensitivity = serializedObject.FindProperty("m_ScrollSensitivity");
m_Viewport = serializedObject.FindProperty("m_Viewport");
m_HorizontalScrollbar = serializedObject.FindProperty("m_HorizontalScrollbar");
m_VerticalScrollbar = serializedObject.FindProperty("m_VerticalScrollbar");
m_HorizontalScrollbarVisibility = serializedObject.FindProperty("m_HorizontalScrollbarVisibility");
m_VerticalScrollbarVisibility = serializedObject.FindProperty("m_VerticalScrollbarVisibility");
m_HorizontalScrollbarSpacing = serializedObject.FindProperty("m_HorizontalScrollbarSpacing");
m_VerticalScrollbarSpacing = serializedObject.FindProperty("m_VerticalScrollbarSpacing");
m_OnValueChanged = serializedObject.FindProperty("m_OnValueChanged");
m_ShowElasticity = new AnimBool(Repaint);
m_ShowDecelerationRate = new AnimBool(Repaint);
SetAnimBools(true);
}
protected virtual void OnDisable()
{
m_ShowElasticity.valueChanged.RemoveListener(Repaint);
m_ShowDecelerationRate.valueChanged.RemoveListener(Repaint);
}
void SetAnimBools(bool instant)
{
SetAnimBool(m_ShowElasticity, !m_MovementType.hasMultipleDifferentValues && m_MovementType.enumValueIndex == (int)ScrollRect.MovementType.Elastic, instant);
SetAnimBool(m_ShowDecelerationRate, !m_Inertia.hasMultipleDifferentValues && m_Inertia.boolValue == true, instant);
}
void SetAnimBool(AnimBool a, bool value, bool instant)
{
if (instant)
a.value = value;
else
a.target = value;
}
void CalculateCachedValues()
{
m_ViewportIsNotChild = false;
m_HScrollbarIsNotChild = false;
m_VScrollbarIsNotChild = false;
if (targets.Length == 1)
{
Transform transform = ((ScrollRect)target).transform;
if (m_Viewport.objectReferenceValue == null || ((RectTransform)m_Viewport.objectReferenceValue).transform.parent != transform)
m_ViewportIsNotChild = true;
if (m_HorizontalScrollbar.objectReferenceValue == null || ((Scrollbar)m_HorizontalScrollbar.objectReferenceValue).transform.parent != transform)
m_HScrollbarIsNotChild = true;
if (m_VerticalScrollbar.objectReferenceValue == null || ((Scrollbar)m_VerticalScrollbar.objectReferenceValue).transform.parent != transform)
m_VScrollbarIsNotChild = true;
}
}
public override void OnInspectorGUI()
{
SetAnimBools(false);
serializedObject.Update();
// Once we have a reliable way to know if the object changed, only re-cache in that case.
CalculateCachedValues();
EditorGUILayout.PropertyField(m_Content);
EditorGUILayout.PropertyField(m_Horizontal);
EditorGUILayout.PropertyField(m_Vertical);
EditorGUILayout.PropertyField(m_MovementType);
if (EditorGUILayout.BeginFadeGroup(m_ShowElasticity.faded))
{
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_Elasticity);
EditorGUI.indentLevel--;
}
EditorGUILayout.EndFadeGroup();
EditorGUILayout.PropertyField(m_Inertia);
if (EditorGUILayout.BeginFadeGroup(m_ShowDecelerationRate.faded))
{
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_DecelerationRate);
EditorGUI.indentLevel--;
}
EditorGUILayout.EndFadeGroup();
EditorGUILayout.PropertyField(m_ScrollSensitivity);
EditorGUILayout.Space();
EditorGUILayout.PropertyField(m_Viewport);
EditorGUILayout.PropertyField(m_HorizontalScrollbar);
if (m_HorizontalScrollbar.objectReferenceValue && !m_HorizontalScrollbar.hasMultipleDifferentValues)
{
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_HorizontalScrollbarVisibility, EditorGUIUtility.TrTextContent("Visibility"));
if ((ScrollRect.ScrollbarVisibility)m_HorizontalScrollbarVisibility.enumValueIndex == ScrollRect.ScrollbarVisibility.AutoHideAndExpandViewport
&& !m_HorizontalScrollbarVisibility.hasMultipleDifferentValues)
{
if (m_ViewportIsNotChild || m_HScrollbarIsNotChild)
EditorGUILayout.HelpBox(s_HError, MessageType.Error);
EditorGUILayout.PropertyField(m_HorizontalScrollbarSpacing, EditorGUIUtility.TrTextContent("Spacing"));
}
EditorGUI.indentLevel--;
}
EditorGUILayout.PropertyField(m_VerticalScrollbar);
if (m_VerticalScrollbar.objectReferenceValue && !m_VerticalScrollbar.hasMultipleDifferentValues)
{
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_VerticalScrollbarVisibility, EditorGUIUtility.TrTextContent("Visibility"));
if ((ScrollRect.ScrollbarVisibility)m_VerticalScrollbarVisibility.enumValueIndex == ScrollRect.ScrollbarVisibility.AutoHideAndExpandViewport
&& !m_VerticalScrollbarVisibility.hasMultipleDifferentValues)
{
if (m_ViewportIsNotChild || m_VScrollbarIsNotChild)
EditorGUILayout.HelpBox(s_VError, MessageType.Error);
EditorGUILayout.PropertyField(m_VerticalScrollbarSpacing, EditorGUIUtility.TrTextContent("Spacing"));
}
EditorGUI.indentLevel--;
}
EditorGUILayout.Space();
EditorGUILayout.PropertyField(m_OnValueChanged);
serializedObject.ApplyModifiedProperties();
}
}
}
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