C# TreeViewItem类代码示例

        public TreeViewItemBuilderTests()
        {
            var viewContext = TestHelper.CreateViewContext();

            item = new TreeViewItem();
            builder = new TreeViewItemBuilder(item, viewContext);
        }

 protected override void DrawIconAndLabel(Rect rect, TreeViewItem item, string label, bool selected, bool focused, bool useBoldFont, bool isPinging)
 {
   if (!isPinging)
   {
     float contentIndent = this.GetContentIndent(item);
     rect.x += contentIndent;
     rect.width -= contentIndent;
   }
   AudioMixerItem audioMixerItem = item as AudioMixerItem;
   if (audioMixerItem == null)
     return;
   GUIStyle guiStyle = !useBoldFont ? TreeViewGUI.s_Styles.lineStyle : TreeViewGUI.s_Styles.lineBoldStyle;
   guiStyle.padding.left = (int) ((double) this.k_IconWidth + (double) this.iconTotalPadding + (double) this.k_SpaceBetweenIconAndText);
   guiStyle.Draw(rect, label, false, false, selected, focused);
   audioMixerItem.UpdateSuspendedString(false);
   if ((double) audioMixerItem.labelWidth <= 0.0)
     audioMixerItem.labelWidth = guiStyle.CalcSize(GUIContent.Temp(label)).x;
   Rect position = rect;
   position.x += audioMixerItem.labelWidth + 8f;
   EditorGUI.BeginDisabledGroup(true);
   guiStyle.Draw(position, audioMixerItem.infoText, false, false, false, false);
   EditorGUI.EndDisabledGroup();
   if (this.iconOverlayGUI == null)
     return;
   Rect rect1 = rect;
   rect1.width = this.k_IconWidth + this.iconTotalPadding;
   this.iconOverlayGUI(item, rect1);
 }

		public override void StartDrag(TreeViewItem draggedItem, List<int> draggedItemIDs)
		{
			if (!EditorApplication.isPlaying)
			{
				base.StartDrag(draggedItem, draggedItemIDs);
			}
		}

 public AudioMixerItem(int id, int depth, TreeViewItem parent, string displayName, AudioMixerController mixer, string infoText)
   : base(id, depth, parent, displayName)
 {
   this.mixer = mixer;
   this.infoText = infoText;
   this.UpdateSuspendedString(true);
 }

			protected override void DrawIconAndLabel(Rect rect, TreeViewItem itemRaw, string label, bool selected, bool focused, bool useBoldFont, bool isPinging)
			{
				FrameDebuggerTreeView.FDTreeViewItem fDTreeViewItem = (FrameDebuggerTreeView.FDTreeViewItem)itemRaw;
				float contentIndent = this.GetContentIndent(fDTreeViewItem);
				rect.x += contentIndent;
				rect.width -= contentIndent;
				string text;
				GUIContent content;
				GUIStyle gUIStyle;
				if (fDTreeViewItem.m_ChildEventCount > 0)
				{
					Rect position = rect;
					position.width -= 4f;
					text = fDTreeViewItem.m_ChildEventCount.ToString(CultureInfo.InvariantCulture);
					content = EditorGUIUtility.TempContent(text);
					gUIStyle = FrameDebuggerWindow.styles.rowTextRight;
					gUIStyle.Draw(position, content, false, false, false, false);
					rect.width -= gUIStyle.CalcSize(content).x + 8f;
				}
				if (fDTreeViewItem.id <= 0)
				{
					text = fDTreeViewItem.displayName;
				}
				else
				{
					text = FrameDebuggerWindow.s_FrameEventTypeNames[(int)fDTreeViewItem.m_FrameEvent.type] + fDTreeViewItem.displayName;
				}
				if (string.IsNullOrEmpty(text))
				{
					text = "<unknown scope>";
				}
				content = EditorGUIUtility.TempContent(text);
				gUIStyle = FrameDebuggerWindow.styles.rowText;
				gUIStyle.Draw(rect, content, false, false, false, selected && focused);
			}

        public TreeViewItemFactoryTests()
        {
            ViewContext viewContext = TestHelper.CreateViewContext();

            item = new TreeViewItem();
            factory = new TreeViewItemFactory(item, viewContext);
        }

 private void AddVisibleChildrenRecursive(BackendData.Foo source, TreeViewItem dest)
 {
   if (this.IsExpanded(source.id))
   {
     if (source.children == null || source.children.Count <= 0)
       return;
     dest.children = new List<TreeViewItem>(source.children.Count);
     for (int index = 0; index < source.children.Count; ++index)
     {
       BackendData.Foo child = source.children[index];
       dest.children.Add((TreeViewItem) new FooTreeViewItem(child.id, dest.depth + 1, dest, child.name, child));
       ++this.itemCounter;
       this.AddVisibleChildrenRecursive(child, dest.children[index]);
     }
   }
   else
   {
     if (!source.hasChildren)
       return;
     dest.children = new List<TreeViewItem>()
     {
       new TreeViewItem(-1, -1, (TreeViewItem) null, string.Empty)
     };
   }
 }

        public void AddBranchAndChildren(TreeViewItem parent, ROMNode node)
        {
            string caption = node.GetROMObjectID();
            TreeViewItem current = null;
            if (parent != null)
            {
                current = new TreeViewItem();
                current.Header = caption;
                current.Tag = node;
                current.Name = "_" + node.GetROMGUID().Replace('-', '_');
                try
                {
                    treeCtrl.UnregisterName(current.Name);
                }
                catch { }
                treeCtrl.RegisterName(current.Name, current);
                parent.Items.Add(current);
            }

            ROMNode[] children = node.GetAllChildren(false);
            if (children != null) foreach (ROMNode child in children)
                {
                    AddBranchAndChildren(current, child);
                }
        }

			private void AddVisibleChildrenRecursive(TreeViewTest.BackendData.Foo source, TreeViewItem dest)
			{
				if (this.IsExpanded(source.id))
				{
					if (source.children != null && source.children.Count > 0)
					{
						dest.children = new List<TreeViewItem>(source.children.Count);
						for (int i = 0; i < source.children.Count; i++)
						{
							TreeViewTest.BackendData.Foo foo = source.children[i];
							dest.children[i] = new TreeViewTest.FooTreeViewItem(foo.id, dest.depth + 1, dest, foo.name, foo);
							this.itemCounter++;
							this.AddVisibleChildrenRecursive(foo, dest.children[i]);
						}
					}
				}
				else
				{
					if (source.hasChildren)
					{
						dest.children = new List<TreeViewItem>
						{
							new TreeViewItem(-1, -1, null, string.Empty)
						};
					}
				}
			}

 protected override void DrawIconAndLabel(Rect rect, TreeViewItem item, string label, bool selected, bool focused, bool useBoldFont, bool isPinging)
 {
     if (!isPinging)
     {
         float contentIndent = this.GetContentIndent(item);
         rect.x += contentIndent;
         rect.width -= contentIndent;
     }
     AudioMixerItem item2 = item as AudioMixerItem;
     if (item2 != null)
     {
         GUIStyle style = !useBoldFont ? TreeViewGUI.s_Styles.lineStyle : TreeViewGUI.s_Styles.lineBoldStyle;
         style.padding.left = (int) ((base.k_IconWidth + base.iconTotalPadding) + base.k_SpaceBetweenIconAndText);
         style.Draw(rect, label, false, false, selected, focused);
         item2.UpdateSuspendedString(false);
         if (item2.labelWidth <= 0f)
         {
             item2.labelWidth = style.CalcSize(GUIContent.Temp(label)).x;
         }
         Rect position = rect;
         position.x += item2.labelWidth + 8f;
         EditorGUI.BeginDisabledGroup(true);
         style.Draw(position, item2.infoText, false, false, false, false);
         EditorGUI.EndDisabledGroup();
         if (base.iconOverlayGUI != null)
         {
             Rect rect3 = rect;
             rect3.width = base.k_IconWidth + base.iconTotalPadding;
             base.iconOverlayGUI(item, rect3);
         }
     }
 }

 public override void StartDrag(TreeViewItem draggedNode, List<int> draggedItemIDs)
 {
   DragAndDrop.PrepareStartDrag();
   DragAndDrop.SetGenericData("FooDragging", (object) new TestDragging.FooDragData(this.GetItemsFromIDs((IEnumerable<int>) draggedItemIDs)));
   DragAndDrop.objectReferences = new UnityEngine.Object[0];
   DragAndDrop.StartDrag(draggedItemIDs.Count.ToString() + " Foo" + (draggedItemIDs.Count <= 1 ? (object) string.Empty : (object) "s"));
 }

 public override void StartDrag(TreeViewItem draggedItem, List<int> draggedItemIDs)
 {
     if (!SavedSearchFilters.IsSavedFilter(draggedItem.id) || (draggedItem.id != SavedSearchFilters.GetRootInstanceID()))
     {
         ProjectWindowUtil.StartDrag(draggedItem.id, draggedItemIDs);
     }
 }

 private TreeViewItem AddAnimatableObjectToHierarchy(GameObject root, EditorCurveBinding[] curveBindings, TreeViewItem parentNode, string path)
 {
     TreeViewItem item = new AddCurvesPopupObjectNode(parentNode, path, GetClassName(root, curveBindings[0])) {
         icon = AssetPreview.GetMiniThumbnail(AnimationUtility.GetAnimatedObject(root, curveBindings[0]))
     };
     List<TreeViewItem> visibleItems = new List<TreeViewItem>();
     List<EditorCurveBinding> list2 = new List<EditorCurveBinding>();
     for (int i = 0; i < curveBindings.Length; i++)
     {
         EditorCurveBinding binding = curveBindings[i];
         list2.Add(binding);
         if ((i == (curveBindings.Length - 1)) || (AnimationWindowUtility.GetPropertyGroupName(curveBindings[i + 1].propertyName) != AnimationWindowUtility.GetPropertyGroupName(binding.propertyName)))
         {
             TreeViewItem item2 = this.CreateNode(list2.ToArray(), item);
             if (item2 != null)
             {
                 visibleItems.Add(item2);
             }
             list2.Clear();
         }
     }
     visibleItems.Sort();
     TreeViewUtility.SetChildParentReferences(visibleItems, item);
     return item;
 }

        private void CreateTreeView()
        {
            if (processInfo == null)
                return;

            foreach (FrameInfo frame in processInfo.Frames)
            {
                TreeViewItem tviFrame = new TreeViewItem { Header = string.Format("Frame {0} ({1} - {2})", frame.FrameNumber, frame.BeginTime, frame.EndTime) };

                foreach (ThreadInfo thread in frame.ThreadItems)
                {
                    TreeViewItem tviThread = new TreeViewItem { Header = string.Format("Thread {0}", thread.Id) };

                    foreach (MicroThreadInfo mt in thread.MicroThreadItems)
                    {
                        TreeViewItem tviMicroThread = new TreeViewItem { Header = string.Format("MicroThread {0} ({1} - {2})", mt.Id, mt.BeginTime, mt.EndTime) };
                        tviThread.Items.Add(tviMicroThread);
                    }

                    tviFrame.Items.Add(tviThread);
                }

                treeView.Items.Add(tviFrame);
            }
        }

		public override bool DragElement(TreeViewItem targetItem, Rect targetItemRect, bool firstItem)
		{
			AudioMixerTreeViewDragging.DragData dragData = DragAndDrop.GetGenericData("AudioMixerDragging") as AudioMixerTreeViewDragging.DragData;
			if (dragData == null)
			{
				DragAndDrop.visualMode = DragAndDropVisualMode.None;
				return false;
			}
			bool flag = targetItem == null;
			if (flag && this.m_TreeView.GetTotalRect().Contains(Event.current.mousePosition))
			{
				if (this.m_DropData != null)
				{
					this.m_DropData.dropTargetControlID = 0;
					this.m_DropData.rowMarkerControlID = 0;
				}
				if (Event.current.type == EventType.DragPerform)
				{
					DragAndDrop.AcceptDrag();
					if (this.m_MixersDroppedOnMixerCallback != null)
					{
						this.m_MixersDroppedOnMixerCallback(this.GetAudioMixersFromItems(dragData.m_DraggedItems), null);
					}
				}
				DragAndDrop.visualMode = DragAndDropVisualMode.Move;
				Event.current.Use();
				return false;
			}
			return base.DragElement(targetItem, targetItemRect, firstItem);
		}