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167 строки
5.2 KiB
167 строки
5.2 KiB
using UnityEngine;
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using UnityEditor;
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using UnityEditor.IMGUI.Controls;
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//带数据的TreeViewItem
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public class AssetViewItem : TreeViewItem
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{
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public ReferenceFinderData.AssetDescription data;
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}
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//资源引用树
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public class AssetTreeView : TreeView
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{
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//图标宽度
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const float kIconWidth = 18f;
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//列表高度
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const float kRowHeights = 20f;
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public AssetViewItem assetRoot;
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private GUIStyle stateGUIStyle = new GUIStyle { richText = true, alignment = TextAnchor.MiddleCenter };
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//列信息
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enum MyColumns
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{
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Name,
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Path,
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State,
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}
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public AssetTreeView(TreeViewState state,MultiColumnHeader multicolumnHeader):base(state,multicolumnHeader)
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{
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rowHeight = kRowHeights;
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columnIndexForTreeFoldouts = 0;
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showAlternatingRowBackgrounds = true;
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showBorder = false;
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customFoldoutYOffset = (kRowHeights - EditorGUIUtility.singleLineHeight) * 0.5f; // center foldout in the row since we also center content. See RowGUI
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extraSpaceBeforeIconAndLabel = kIconWidth;
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}
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//响应右击事件
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protected override void ContextClickedItem(int id)
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{
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SetExpanded(id, !IsExpanded(id));
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}
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//响应双击事件
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protected override void DoubleClickedItem(int id)
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{
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var item = (AssetViewItem)FindItem(id, rootItem);
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//在ProjectWindow中高亮双击资源
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if (item != null)
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{
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var assetObject = AssetDatabase.LoadAssetAtPath(item.data.path, typeof(UnityEngine.Object));
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EditorUtility.FocusProjectWindow();
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Selection.activeObject = assetObject;
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EditorGUIUtility.PingObject(assetObject);
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}
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}
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//生成ColumnHeader
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public static MultiColumnHeaderState CreateDefaultMultiColumnHeaderState(float treeViewWidth)
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{
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var columns = new[]
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{
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//图标+名称
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new MultiColumnHeaderState.Column
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{
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headerContent = new GUIContent("Name"),
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headerTextAlignment = TextAlignment.Center,
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sortedAscending = false,
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width = 200,
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minWidth = 60,
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autoResize = false,
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allowToggleVisibility = false,
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canSort = false
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},
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//路径
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new MultiColumnHeaderState.Column
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{
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headerContent = new GUIContent("Path"),
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headerTextAlignment = TextAlignment.Center,
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sortedAscending = false,
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width = 360,
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minWidth = 60,
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autoResize = false,
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allowToggleVisibility = false,
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canSort = false
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},
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//状态
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new MultiColumnHeaderState.Column
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{
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headerContent = new GUIContent("State"),
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headerTextAlignment = TextAlignment.Center,
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sortedAscending = false,
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width = 60,
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minWidth = 60,
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autoResize = false,
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allowToggleVisibility = true,
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canSort = false
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},
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};
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var state = new MultiColumnHeaderState(columns);
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return state;
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}
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protected override TreeViewItem BuildRoot()
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{
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return assetRoot;
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}
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protected override void RowGUI(RowGUIArgs args)
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{
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var item = (AssetViewItem)args.item;
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for(int i = 0; i < args.GetNumVisibleColumns(); ++i)
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{
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CellGUI(args.GetCellRect(i), item, (MyColumns)args.GetColumn(i), ref args);
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}
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}
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//绘制列表中的每项内容
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void CellGUI(Rect cellRect,AssetViewItem item,MyColumns column, ref RowGUIArgs args)
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{
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CenterRectUsingSingleLineHeight(ref cellRect);
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switch (column)
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{
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case MyColumns.Name:
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{
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var iconRect = cellRect;
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iconRect.x += GetContentIndent(item);
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iconRect.width = kIconWidth;
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if (iconRect.x < cellRect.xMax)
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{
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var icon = GetIcon(item.data.path);
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if(icon != null)
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GUI.DrawTexture(iconRect, icon, ScaleMode.ScaleToFit);
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}
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args.rowRect = cellRect;
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base.RowGUI(args);
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}
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break;
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case MyColumns.Path:
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{
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GUI.Label(cellRect, item.data.path);
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}
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break;
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case MyColumns.State:
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{
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GUI.Label(cellRect, ReferenceFinderData.GetInfoByState(item.data.state),stateGUIStyle);
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}
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break;
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}
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}
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//根据资源信息获取资源图标
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private Texture2D GetIcon(string path)
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{
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Object obj = AssetDatabase.LoadAssetAtPath(path, typeof(Object));
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if (obj != null)
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{
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Texture2D icon = AssetPreview.GetMiniThumbnail(obj);
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if (icon == null)
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icon = AssetPreview.GetMiniTypeThumbnail(obj.GetType());
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return icon;
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}
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return null;
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}
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}
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