177 lines
8.3 KiB
C#
177 lines
8.3 KiB
C#
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using UnityEngine;
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using UnityEngine.UI;
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using UnityEditor.AnimatedValues;
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namespace UnityEditor.UI
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{
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[CustomEditor(typeof(ScrollRect), true)]
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[CanEditMultipleObjects]
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/// <summary>
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/// Custom Editor for the ScrollRect Component.
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/// Extend this class to write a custom editor for a component derived from ScrollRect.
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/// </summary>
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public class ScrollRectEditor : Editor
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{
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SerializedProperty m_Content;
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SerializedProperty m_Horizontal;
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SerializedProperty m_Vertical;
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SerializedProperty m_MovementType;
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SerializedProperty m_Elasticity;
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SerializedProperty m_Inertia;
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SerializedProperty m_DecelerationRate;
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SerializedProperty m_ScrollSensitivity;
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SerializedProperty m_Viewport;
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SerializedProperty m_HorizontalScrollbar;
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SerializedProperty m_VerticalScrollbar;
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SerializedProperty m_HorizontalScrollbarVisibility;
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SerializedProperty m_VerticalScrollbarVisibility;
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SerializedProperty m_HorizontalScrollbarSpacing;
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SerializedProperty m_VerticalScrollbarSpacing;
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SerializedProperty m_OnValueChanged;
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AnimBool m_ShowElasticity;
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AnimBool m_ShowDecelerationRate;
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bool m_ViewportIsNotChild, m_HScrollbarIsNotChild, m_VScrollbarIsNotChild;
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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.";
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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.";
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protected virtual void OnEnable()
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{
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m_Content = serializedObject.FindProperty("m_Content");
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m_Horizontal = serializedObject.FindProperty("m_Horizontal");
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m_Vertical = serializedObject.FindProperty("m_Vertical");
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m_MovementType = serializedObject.FindProperty("m_MovementType");
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m_Elasticity = serializedObject.FindProperty("m_Elasticity");
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m_Inertia = serializedObject.FindProperty("m_Inertia");
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m_DecelerationRate = serializedObject.FindProperty("m_DecelerationRate");
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m_ScrollSensitivity = serializedObject.FindProperty("m_ScrollSensitivity");
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m_Viewport = serializedObject.FindProperty("m_Viewport");
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m_HorizontalScrollbar = serializedObject.FindProperty("m_HorizontalScrollbar");
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m_VerticalScrollbar = serializedObject.FindProperty("m_VerticalScrollbar");
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m_HorizontalScrollbarVisibility = serializedObject.FindProperty("m_HorizontalScrollbarVisibility");
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m_VerticalScrollbarVisibility = serializedObject.FindProperty("m_VerticalScrollbarVisibility");
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m_HorizontalScrollbarSpacing = serializedObject.FindProperty("m_HorizontalScrollbarSpacing");
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m_VerticalScrollbarSpacing = serializedObject.FindProperty("m_VerticalScrollbarSpacing");
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m_OnValueChanged = serializedObject.FindProperty("m_OnValueChanged");
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m_ShowElasticity = new AnimBool(Repaint);
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m_ShowDecelerationRate = new AnimBool(Repaint);
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SetAnimBools(true);
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}
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protected virtual void OnDisable()
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{
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m_ShowElasticity.valueChanged.RemoveListener(Repaint);
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m_ShowDecelerationRate.valueChanged.RemoveListener(Repaint);
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}
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void SetAnimBools(bool instant)
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{
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SetAnimBool(m_ShowElasticity, !m_MovementType.hasMultipleDifferentValues && m_MovementType.enumValueIndex == (int)ScrollRect.MovementType.Elastic, instant);
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SetAnimBool(m_ShowDecelerationRate, !m_Inertia.hasMultipleDifferentValues && m_Inertia.boolValue == true, instant);
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}
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void SetAnimBool(AnimBool a, bool value, bool instant)
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{
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if (instant)
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a.value = value;
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else
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a.target = value;
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}
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void CalculateCachedValues()
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{
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m_ViewportIsNotChild = false;
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m_HScrollbarIsNotChild = false;
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m_VScrollbarIsNotChild = false;
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if (targets.Length == 1)
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{
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Transform transform = ((ScrollRect)target).transform;
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if (m_Viewport.objectReferenceValue == null || ((RectTransform)m_Viewport.objectReferenceValue).transform.parent != transform)
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m_ViewportIsNotChild = true;
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if (m_HorizontalScrollbar.objectReferenceValue == null || ((Scrollbar)m_HorizontalScrollbar.objectReferenceValue).transform.parent != transform)
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m_HScrollbarIsNotChild = true;
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if (m_VerticalScrollbar.objectReferenceValue == null || ((Scrollbar)m_VerticalScrollbar.objectReferenceValue).transform.parent != transform)
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m_VScrollbarIsNotChild = true;
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}
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}
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public override void OnInspectorGUI()
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{
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SetAnimBools(false);
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serializedObject.Update();
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// Once we have a reliable way to know if the object changed, only re-cache in that case.
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CalculateCachedValues();
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EditorGUILayout.PropertyField(m_Content);
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EditorGUILayout.PropertyField(m_Horizontal);
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EditorGUILayout.PropertyField(m_Vertical);
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EditorGUILayout.PropertyField(m_MovementType);
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if (EditorGUILayout.BeginFadeGroup(m_ShowElasticity.faded))
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{
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EditorGUI.indentLevel++;
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EditorGUILayout.PropertyField(m_Elasticity);
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EditorGUI.indentLevel--;
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}
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EditorGUILayout.EndFadeGroup();
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EditorGUILayout.PropertyField(m_Inertia);
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if (EditorGUILayout.BeginFadeGroup(m_ShowDecelerationRate.faded))
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{
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EditorGUI.indentLevel++;
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EditorGUILayout.PropertyField(m_DecelerationRate);
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EditorGUI.indentLevel--;
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}
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EditorGUILayout.EndFadeGroup();
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EditorGUILayout.PropertyField(m_ScrollSensitivity);
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EditorGUILayout.Space();
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EditorGUILayout.PropertyField(m_Viewport);
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EditorGUILayout.PropertyField(m_HorizontalScrollbar);
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if (m_HorizontalScrollbar.objectReferenceValue && !m_HorizontalScrollbar.hasMultipleDifferentValues)
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{
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EditorGUI.indentLevel++;
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EditorGUILayout.PropertyField(m_HorizontalScrollbarVisibility, EditorGUIUtility.TrTextContent("Visibility"));
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if ((ScrollRect.ScrollbarVisibility)m_HorizontalScrollbarVisibility.enumValueIndex == ScrollRect.ScrollbarVisibility.AutoHideAndExpandViewport
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&& !m_HorizontalScrollbarVisibility.hasMultipleDifferentValues)
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{
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if (m_ViewportIsNotChild || m_HScrollbarIsNotChild)
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EditorGUILayout.HelpBox(s_HError, MessageType.Error);
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EditorGUILayout.PropertyField(m_HorizontalScrollbarSpacing, EditorGUIUtility.TrTextContent("Spacing"));
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}
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EditorGUI.indentLevel--;
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}
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EditorGUILayout.PropertyField(m_VerticalScrollbar);
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if (m_VerticalScrollbar.objectReferenceValue && !m_VerticalScrollbar.hasMultipleDifferentValues)
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{
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EditorGUI.indentLevel++;
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EditorGUILayout.PropertyField(m_VerticalScrollbarVisibility, EditorGUIUtility.TrTextContent("Visibility"));
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if ((ScrollRect.ScrollbarVisibility)m_VerticalScrollbarVisibility.enumValueIndex == ScrollRect.ScrollbarVisibility.AutoHideAndExpandViewport
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&& !m_VerticalScrollbarVisibility.hasMultipleDifferentValues)
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{
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if (m_ViewportIsNotChild || m_VScrollbarIsNotChild)
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EditorGUILayout.HelpBox(s_VError, MessageType.Error);
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EditorGUILayout.PropertyField(m_VerticalScrollbarSpacing, EditorGUIUtility.TrTextContent("Spacing"));
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}
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EditorGUI.indentLevel--;
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}
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EditorGUILayout.Space();
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EditorGUILayout.PropertyField(m_OnValueChanged);
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serializedObject.ApplyModifiedProperties();
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}
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}
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}
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