293 lines
11 KiB
C#
293 lines
11 KiB
C#
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#if UNITY_EDITOR
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEditor;
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using NeoFPS;
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namespace NeoFPSEditor
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{
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public class ObjectHierarchyBrowser : EditorWindow
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{
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public static void GetChildObject(Transform root, bool allowRoot, OnPickedDelegate onPicked, OnCancelledDelegate onCancelled, GameObjectFilter filter = null)
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{
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if (root != null)
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{
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ObjectHierarchyBrowser window = GetWindow<ObjectHierarchyBrowser>(true, "Hierarchy Browser", true);
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window.minSize = new Vector2(320, 480);
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window.m_OnPicked = onPicked;
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window.m_OnCancelled = onCancelled;
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window.InitialiseHierarchy(root, allowRoot, filter);
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s_Instance = window;
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}
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}
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public static void GetChildComponent<T>(Transform root, bool allowRoot, OnPickedDelegate onPicked, OnCancelledDelegate onCancelled) where T : class
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{
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if (root != null)
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{
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ObjectHierarchyBrowser window = GetWindow<ObjectHierarchyBrowser>(true, "Hierarchy Browser", true);
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window.minSize = new Vector2(320, 480);
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window.m_OnPicked = onPicked;
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window.m_OnCancelled = onCancelled;
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window.InitialiseHierarchy(root, allowRoot, FilterByComponent<T>);
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s_Instance = window;
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}
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}
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public static void GetChildComponent<T>(Transform root, bool allowRoot, OnPickedDelegate onPicked, OnCancelledDelegate onCancelled, ComponentFilter<T> filter) where T : class
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{
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if (root != null)
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{
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ObjectHierarchyBrowser window = GetWindow<ObjectHierarchyBrowser>(true, "Hierarchy Browser", true);
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window.minSize = new Vector2(320, 480);
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window.m_OnPicked = onPicked;
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window.m_OnCancelled = onCancelled;
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window.InitialiseHierarchy(root, allowRoot,
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(obj) =>
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{
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var component = obj.GetComponent<T>();
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if (component == null)
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return false;
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if (filter != null && !filter(component))
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return false;
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return true;
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});
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s_Instance = window;
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}
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}
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public delegate void OnPickedDelegate(GameObject obj);
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public delegate void OnCancelledDelegate();
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private static ObjectHierarchyBrowser s_Instance = null;
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private Vector2 m_ScrollPosition = Vector2.zero;
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private GameObject m_Selection = null;
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private OnPickedDelegate m_OnPicked = null;
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private OnCancelledDelegate m_OnCancelled = null;
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private bool m_DoubleClicked = false;
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private bool m_Picked = false;
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private string m_NameFilter = string.Empty;
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private HierarchyNode rootNode = null;
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private GUIStyle m_BackgroundStyleNormal = null;
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private GUIStyle m_BackgroundStyleSelected = null;
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private GUIStyle m_FoldoutStyleExpanded = null;
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private GUIStyle m_FoldoutStyleContracted = null;
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private GUIStyle m_NameStyleNormal = null;
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private GUIStyle m_NameStyleSelected = null;
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private GUIContent m_LabelContent = null;
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private void Awake()
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{
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// Get background styles
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m_BackgroundStyleNormal = new GUIStyle();
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m_BackgroundStyleNormal.fixedHeight = 20;
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m_BackgroundStyleSelected = new GUIStyle(m_BackgroundStyleNormal);
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m_BackgroundStyleSelected.normal.background = new GUIStyle("OL SelectedRow").normal.background;
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// Get foldout styles
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m_FoldoutStyleExpanded = new GUIStyle();
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m_FoldoutStyleExpanded.fixedHeight = 12;
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m_FoldoutStyleExpanded.fixedWidth = 12;
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m_FoldoutStyleExpanded.normal.background = EditorGUIUtility.FindTexture("d_Toolbar Minus");
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m_FoldoutStyleExpanded.margin = new RectOffset(0, 0, 4, 4);
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m_FoldoutStyleContracted = new GUIStyle(m_FoldoutStyleExpanded);
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m_FoldoutStyleContracted.normal.background = EditorGUIUtility.FindTexture("d_Toolbar Plus");
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// Get label styles
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m_NameStyleNormal = new GUIStyle(EditorStyles.label);
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m_NameStyleNormal.margin.left -= 4;
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m_NameStyleSelected = new GUIStyle(m_NameStyleNormal);
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m_NameStyleSelected.normal.textColor = Color.white;
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m_LabelContent = EditorGUIUtility.IconContent("d_GameObject Icon");
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m_NameFilter = string.Empty;
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}
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class HierarchyNode
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{
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private GameObject m_GameObject = null;
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private bool m_Selectable = true;
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private bool m_Expanded = true;
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private int m_Indent = 0;
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public List<HierarchyNode> children { get; private set; }
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public HierarchyNode(GameObject obj, bool selectable, int indent)
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{
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m_GameObject = obj;
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m_Selectable = selectable;
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m_Indent = indent;
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}
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public void Draw(string filter)
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{
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bool isSelected = s_Instance.m_Selection == m_GameObject;
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var backgroundStyle = isSelected ? s_Instance.m_BackgroundStyleSelected : s_Instance.m_BackgroundStyleNormal;
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var labelStyle = isSelected ? s_Instance.m_NameStyleSelected : s_Instance.m_NameStyleNormal;
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if (filter == string.Empty || m_GameObject.name.ToLower().Contains(filter))
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{
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using (new EditorGUILayout.HorizontalScope(backgroundStyle, GUILayout.Width(s_Instance.position.width - 32)))
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{
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if (filter == string.Empty)
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{
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// Expand/Collapse
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if (children != null)
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{
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// Indent
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if (m_Indent > 0)
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GUILayout.Space(12 * m_Indent);
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// Foldout button
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if (GUILayout.Button(GUIContent.none, m_Expanded ? s_Instance.m_FoldoutStyleExpanded : s_Instance.m_FoldoutStyleContracted))
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m_Expanded = !m_Expanded;
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}
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else
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{
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// Indent
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if (m_Indent > 0)
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GUILayout.Space(12 * m_Indent + 12);
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}
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}
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// Name
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if (!m_Selectable)
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GUI.enabled = false;
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var content = new GUIContent(s_Instance.m_LabelContent);
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content.text = m_GameObject.name;
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if (GUILayout.Button(content, labelStyle, GUILayout.Height(20)))
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{
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s_Instance.m_Selection = m_GameObject;
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if (s_Instance.m_DoubleClicked)
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{
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s_Instance.m_Picked = true;
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s_Instance.Close();
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throw new ExitGUIException(); // Abort layout / GUI
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}
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}
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GUI.enabled = true;
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// Selection
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}
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}
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if ((m_Expanded || filter != string.Empty) && children != null)
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{
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for (int i = 0; i < children.Count; ++i)
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children[i].Draw(filter);
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}
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}
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public void InitialiseChildren(GameObjectFilter filter)
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{
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var t = m_GameObject.transform;
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if (t.childCount > 0)
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{
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children = new List<HierarchyNode>(t.childCount);
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for (int i = 0; i < t.childCount; ++i)
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{
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var child = t.GetChild(i).gameObject;
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var childNode = new HierarchyNode(child, (filter != null) ? filter(child) : true, m_Indent + 1);
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children.Add(childNode);
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childNode.InitialiseChildren(filter);
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}
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}
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}
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}
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void InitialiseHierarchy(Transform root, bool allowRoot, GameObjectFilter filter)
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{
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if (allowRoot && filter != null)
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allowRoot = filter(root.gameObject);
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rootNode = new HierarchyNode(root.gameObject, allowRoot, 0);
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rootNode.InitialiseChildren(filter);
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}
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private void OnGUI()
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{
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if (Event.current.type == EventType.MouseDown)
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{
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m_DoubleClicked = (Event.current.clickCount > 1);
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}
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using (new EditorGUILayout.VerticalScope())
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{
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// Draw the filter
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GUILayout.Space(4);
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m_NameFilter = EditorGUILayout.TextField("Filter", m_NameFilter);
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// Draw the hierarchy list
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var gs = new GUIStyle();
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gs.stretchWidth = false;
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using (var scroller = new EditorGUILayout.ScrollViewScope(m_ScrollPosition, false, true, GUI.skin.horizontalScrollbar, GUI.skin.verticalScrollbar, GUI.skin.box))
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{
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m_ScrollPosition = scroller.scrollPosition;
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using (new EditorGUILayout.VerticalScope())
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{
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rootNode.Draw(m_NameFilter.ToLower());
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}
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}
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// Show select object button (only valid if there is a selection)
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if (m_Selection == null)
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{
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GUI.enabled = false;
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GUILayout.Button("Pick: <Nothing Selected>");
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GUI.enabled = true;
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}
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else
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{
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if (GUILayout.Button(string.Format("Pick: \"{0}\"", m_Selection.name)))
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{
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m_Picked = true;
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Close();
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}
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}
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// Show select none button
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if (GUILayout.Button("Pick None"))
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{
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m_Picked = true;
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m_Selection = null;
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Close();
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}
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}
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}
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private void OnLostFocus()
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{
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Close();
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}
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private void OnDestroy()
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{
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if (m_Picked)
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{
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if (m_OnPicked != null)
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m_OnPicked(m_Selection);
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m_Selection = null;
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}
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else
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{
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if (m_OnCancelled != null)
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m_OnCancelled();
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}
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s_Instance = null;
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}
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public static bool FilterByComponent<T>(GameObject obj) where T : class
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{
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return (obj.GetComponent<T>() != null);
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}
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}
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}
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#endif
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