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| 1 | +// Unity C# reference source |
| 2 | +// Copyright (c) Unity Technologies. For terms of use, see |
| 3 | +// https://unity3d.com/legal/licenses/Unity_Reference_Only_License |
| 4 | + |
| 5 | +using UnityEngine; |
| 6 | +using UnityEngine.Internal; |
| 7 | +using System; |
| 8 | + |
| 9 | +namespace UnityEditor |
| 10 | +{ |
| 11 | + public sealed partial class EditorGUILayout |
| 12 | + { |
| 13 | + public static bool BeginFoldoutHeaderGroup(bool foldout, string content, [DefaultValue("EditorStyles.foldoutHeader")] |
| 14 | + GUIStyle style = null, Action<Rect> menuAction = null, GUIStyle menuIcon = null) |
| 15 | + { |
| 16 | + return BeginFoldoutHeaderGroup(foldout, GUIContent.Temp(content), style, menuAction, menuIcon); |
| 17 | + } |
| 18 | + |
| 19 | + public static bool BeginFoldoutHeaderGroup(bool foldout, GUIContent content, [DefaultValue("EditorStyles.foldoutHeader")] GUIStyle style = null, Action<Rect> menuAction = null, GUIStyle menuIcon = null) |
| 20 | + { |
| 21 | + if (style == null) |
| 22 | + style = EditorStyles.foldoutHeader; |
| 23 | + var backgroundRect = GUILayoutUtility.GetRect(content, style); |
| 24 | + return EditorGUI.BeginFoldoutHeaderGroup(backgroundRect, foldout, content, style, menuAction, menuIcon); |
| 25 | + } |
| 26 | + |
| 27 | + public static void EndFoldoutHeaderGroup() |
| 28 | + { |
| 29 | + EditorGUI.EndFoldoutHeaderGroup(); |
| 30 | + } |
| 31 | + } |
| 32 | + |
| 33 | + public sealed partial class EditorGUI |
| 34 | + { |
| 35 | + static bool s_FoldoutHeaderGroupActive; |
| 36 | + |
| 37 | + public static bool BeginFoldoutHeaderGroup(Rect position, bool foldout, string content, [DefaultValue("EditorStyles.foldoutHeader")] |
| 38 | + GUIStyle style = null, Action<Rect> menuAction = null, GUIStyle menuIcon = null) |
| 39 | + { |
| 40 | + return BeginFoldoutHeaderGroup(position, foldout, GUIContent.Temp(content), style, menuAction, menuIcon); |
| 41 | + } |
| 42 | + |
| 43 | + public static bool BeginFoldoutHeaderGroup(Rect position, bool foldout, GUIContent content, [DefaultValue("EditorStyles.foldoutHeader")] GUIStyle style = null, Action<Rect> menuAction = null, GUIStyle menuIcon = null) |
| 44 | + { |
| 45 | + if (style == null) |
| 46 | + style = EditorStyles.foldoutHeader; |
| 47 | + if (s_FoldoutHeaderGroupActive) |
| 48 | + { |
| 49 | + EditorGUI.HelpBox(position, L10n.Tr("You can't nest Foldout Headers, end it with EndHeaderFoldoutGroup."), MessageType.Error); |
| 50 | + return false; |
| 51 | + } |
| 52 | + s_FoldoutHeaderGroupActive = true; |
| 53 | + |
| 54 | + const float iconSize = 16; |
| 55 | + Rect menuRect = new Rect |
| 56 | + { |
| 57 | + x = position.xMax - style.padding.right - iconSize, |
| 58 | + y = position.y + style.padding.top, |
| 59 | + size = Vector2.one * iconSize |
| 60 | + }; |
| 61 | + |
| 62 | + bool menuIconHover = menuRect.Contains(Event.current.mousePosition); |
| 63 | + bool menuIconActive = (menuIconHover && Event.current.type == EventType.MouseDown && Event.current.button == 0); |
| 64 | + if (menuAction != null && menuIconActive) |
| 65 | + { |
| 66 | + menuAction.Invoke(menuRect); |
| 67 | + Event.current.Use(); |
| 68 | + } |
| 69 | + |
| 70 | + foldout = GUI.Toggle(position, foldout, content, style); |
| 71 | + |
| 72 | + // Menu icon |
| 73 | + if (menuAction != null && Event.current.type == EventType.Repaint) |
| 74 | + { |
| 75 | + if (menuIcon == null) |
| 76 | + menuIcon = EditorStyles.foldoutHeaderIcon; |
| 77 | + |
| 78 | + menuIcon.Draw(menuRect, menuIconHover, menuIconActive, false, false); |
| 79 | + } |
| 80 | + |
| 81 | + return foldout; |
| 82 | + } |
| 83 | + |
| 84 | + public static void EndFoldoutHeaderGroup() |
| 85 | + { |
| 86 | + s_FoldoutHeaderGroupActive = false; |
| 87 | + } |
| 88 | + } |
| 89 | +} |
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