78 lines
2.2 KiB
C#
78 lines
2.2 KiB
C#
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#if UNITY_EDITOR
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#if UNITY_2019_1_OR_NEWER
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#define UI_USE_FOLDOUT_HEADER_2019
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#endif
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using UnityEditor;
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using UnityEngine;
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using System.Collections.Generic;
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using System;
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namespace VLB
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{
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public static class FoldableHeader
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{
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public static void OnEnable()
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{
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ms_CurrentFoldableHeader = null;
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}
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public static bool Begin(UnityEngine.Object self, string label)
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{
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return Begin(self, new GUIContent(label));
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}
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public static bool Begin(UnityEngine.Object self, GUIContent label)
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{
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var uniqueString = label.text;
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if(self) uniqueString = self.ToString() + uniqueString;
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if (ms_StyleHeaderFoldable == null)
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{
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ms_StyleHeaderFoldable = new GUIStyle(EditorStyles.foldout);
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ms_StyleHeaderFoldable.fontStyle = FontStyle.Bold;
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}
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ms_CurrentFoldableHeader = uniqueString;
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bool folded = IsFolded(uniqueString);
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#if UI_USE_FOLDOUT_HEADER_2019
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folded = !EditorGUILayout.BeginFoldoutHeaderGroup(!folded, label);
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#else
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folded = !EditorGUILayout.Foldout(!folded, label, toggleOnLabelClick: true, style: ms_StyleHeaderFoldable);
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#endif
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if (folded) ms_FoldedHeaders.Add(uniqueString);
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else ms_FoldedHeaders.Remove(uniqueString);
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return !folded;
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}
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public static void End()
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{
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Debug.Assert(ms_CurrentFoldableHeader != null, "Trying to call FoldableHeader.End() but there is no header opened");
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bool isFolded = IsFolded(ms_CurrentFoldableHeader);
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ms_CurrentFoldableHeader = null;
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#if UI_USE_FOLDOUT_HEADER_2019
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EditorGUILayout.EndFoldoutHeaderGroup();
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#if UNITY_2019_3_OR_NEWER
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if(!isFolded) EditorGUILayout.Separator();
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#endif
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#else
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EditorExtensions.DrawLineSeparator();
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#endif
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}
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static bool IsFolded(string uniqueString) { return ms_FoldedHeaders.Contains(uniqueString); }
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static string ms_CurrentFoldableHeader = null;
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static HashSet<String> ms_FoldedHeaders = new HashSet<String>();
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static GUIStyle ms_StyleHeaderFoldable = null;
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}
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}
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#endif // UNITY_EDITOR
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