forked from Shardstone/trail-into-darkness
107 lines
4.3 KiB
C#
107 lines
4.3 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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#if UNITY_EDITOR
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using System.Reflection;
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using UnityEditor;
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#endif
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namespace Jovian.InspectorTools {
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[AttributeUsage(AttributeTargets.Field)]
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public abstract class ArrayAttribute : Attribute {
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#if UNITY_EDITOR
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public virtual void OnPreGUI(ref Rect position, SerializedProperty property, ref GUIContent label) {
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}
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public virtual void OnPostGUI(ref Rect position, SerializedProperty property, ref GUIContent label) {
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}
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#endif
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}
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#if UNITY_EDITOR
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public static class ArrayAttributePropertyHandler {
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public static bool DrawArrayProperty(SerializedProperty property) {
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return DrawArrayProperty(property,
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new GUIContent(ObjectNames.NicifyVariableName(property.name), property.tooltip),
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true
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);
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}
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public static bool DrawArrayProperty(SerializedProperty property, GUIContent label, bool includeChildren, params GUILayoutOption[] options) {
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Rect rect = EditorGUILayout.GetControlRect(LabelHasContent(label), EditorGUI.GetPropertyHeight(property, label, includeChildren), options);
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bool hasArrayAttributes = TryGetAttributes(property, true, out List<ArrayAttribute> arrayAttributes);
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bool isGuiEnabled = GUI.enabled;
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Color contentColor = GUI.contentColor;
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Color backgroundColor = GUI.backgroundColor;
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Color guiColor = GUI.color;
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Rect preRect = new Rect(rect);
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Rect postRect = new Rect(rect);
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if (hasArrayAttributes) {
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foreach (ArrayAttribute arrayAttribute in arrayAttributes) {
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arrayAttribute.OnPreGUI(ref preRect, property, ref label);
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}
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}
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bool hasChildPropertiesNotShown = EditorGUI.PropertyField(preRect, property, label, includeChildren);
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if (hasArrayAttributes) {
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foreach (ArrayAttribute arrayAttribute in arrayAttributes) {
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arrayAttribute.OnPostGUI(ref postRect, property, ref label);
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}
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}
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GUI.enabled = isGuiEnabled;
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GUI.contentColor = contentColor;
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GUI.backgroundColor = backgroundColor;
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GUI.color = guiColor;
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return hasChildPropertiesNotShown;
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}
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private static bool LabelHasContent(GUIContent label)
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{
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return label == null || label.text != string.Empty || (UnityEngine.Object) label.image != (UnityEngine.Object) null;
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}
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public static bool TryGetAttributes<TAttribute>(SerializedProperty serializedProperty, bool inherit, out List<TAttribute> attributes)
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where TAttribute : Attribute {
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if(serializedProperty == null) {
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throw new ArgumentNullException(nameof(serializedProperty));
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}
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Type targetObjectType = serializedProperty.serializedObject.targetObject.GetType();
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if(targetObjectType == null) {
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throw new ArgumentException($"Could not find the {nameof(targetObjectType)} of {nameof(serializedProperty)}");
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}
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attributes = new List<TAttribute>();
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foreach(string pathSegment in serializedProperty.propertyPath.Split('.')) {
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FieldInfo fieldInfo = targetObjectType.GetRuntimeField(pathSegment);
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if(fieldInfo != null) {
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IEnumerable<TAttribute> fieldAttributes = fieldInfo.GetCustomAttributes<TAttribute>(inherit);
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foreach (TAttribute fieldAttribute in fieldAttributes) {
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attributes.Add(fieldAttribute);
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}
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}
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PropertyInfo propertyInfo = targetObjectType.GetRuntimeProperty(pathSegment);
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if(propertyInfo != null) {
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IEnumerable<TAttribute> fieldAttributes = propertyInfo.GetCustomAttributes<TAttribute>(inherit);
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foreach (TAttribute fieldAttribute in fieldAttributes) {
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attributes.Add(fieldAttribute);
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}
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}
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}
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return attributes.Count > 0;
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}
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}
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#endif
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} |