protected override void DoItemGUI(Rect rect, int row, TreeViewItem item, bool selected, bool focused, bool useBoldFont)
{
EditorGUIUtility.SetIconSize(new Vector2(k_IconWidth, k_IconWidth));
float foldoutIndent = GetFoldoutIndent(item);
int itemControlId = TreeView.GetItemControlID(item, m_TreeView);
bool flag1 = false;
if (m_TreeView.dragging != null)
{
flag1 = m_TreeView.dragging.GetDropTargetControlID() == itemControlId && m_TreeView.data.CanBeParent(item);
}
bool flag2 = IsRenaming(item.id);
bool flag3 = m_TreeView.data.IsExpandable(item) && !m_TreeView.isSearching;
if (flag2 && Event.current.type == EventType.Repaint)
{
float num2 = (float)(foldoutIndent + iconTotalPadding - 1.0) + 12f;
GetRenameOverlay().editFieldRect = new Rect(rect.x + num2, rect.y, rect.width - num2, rect.height);
}
if (Event.current.type == EventType.Repaint)
{
string label = item.displayName;
if (flag2)
{
selected = false;
label = string.Empty;
}
if (selected)
{
s_Styles.selectionStyle.Draw(rect, false, false, true, focused);
}
if (flag1)
{
s_Styles.lineStyle.Draw(rect, GUIContent.none, true, true, false, false);
}
DrawIconAndLabel(rect, item, label, selected, focused, useBoldFont, false);
if (m_TreeView.dragging != null && m_TreeView.dragging.GetRowMarkerControlID() == itemControlId)
{
float contentIndent = GetContentIndent(item);
var paddingLeft = k_IconWidth + iconTotalPadding + k_SpaceBetweenIconAndText;
m_DraggingInsertionMarkerRect = new Rect(rect.x + contentIndent - 5 + paddingLeft, rect.y, rect.width - contentIndent + 5, rect.height);
}
}
if (flag3)
{
DoFoldout(rect, item, row);
}
EditorGUIUtility.SetIconSize(Vector2.zero);
}
public override bool DragElement(TreeViewItem targetItem, Rect targetItemRect, bool firstItem)
{
if (targetItem == null)
{
if (m_DropData != null)
{
m_DropData.dropTargetControlID = 0;
m_DropData.rowMarkerControlID = 0;
}
bool perform = Event.current.type == EventType.DragPerform;
DragAndDrop.visualMode = DoDrag(null, null, perform, TreeViewDragging.DropPosition.Below);
if (DragAndDrop.visualMode != DragAndDropVisualMode.None && perform)
{
FinalizeDragPerformed(true);
}
return(false);
}
Vector2 mousePosition = Event.current.mousePosition;
bool flag = m_TreeView.data.CanBeParent(targetItem);
Rect rect = targetItemRect;
float betweenHalfHeight = !flag ? targetItemRect.height * 0.5f : m_TreeView.gui.halfDropBetweenHeight;
if (firstItem)
{
rect.yMin -= betweenHalfHeight;
}
rect.yMax += betweenHalfHeight;
if (!rect.Contains(mousePosition))
{
return(false);
}
TreeViewDragging.DropPosition dropPosition = mousePosition.y < targetItemRect.yMax - betweenHalfHeight ? (!firstItem || mousePosition.y > targetItemRect.yMin + betweenHalfHeight ? (!flag ? TreeViewDragging.DropPosition.Above : TreeViewDragging.DropPosition.Upon) : TreeViewDragging.DropPosition.Above) : TreeViewDragging.DropPosition.Below;
TreeViewItem parentItem = !m_TreeView.data.IsExpanded(targetItem) || !targetItem.hasChildren ? targetItem.parent : targetItem;
DragAndDropVisualMode andDropVisualMode1 = DragAndDropVisualMode.None;
if (Event.current.type == EventType.DragPerform)
{
if (dropPosition == TreeViewDragging.DropPosition.Upon)
{
andDropVisualMode1 = DoDrag(targetItem, targetItem, true, dropPosition);
}
if (andDropVisualMode1 == DragAndDropVisualMode.None && parentItem != null)
{
andDropVisualMode1 = DoDrag(parentItem, targetItem, true, dropPosition);
}
if (andDropVisualMode1 != DragAndDropVisualMode.None)
{
FinalizeDragPerformed(false);
}
else
{
DragCleanup(true);
m_TreeView.NotifyListenersThatDragEnded(null, false);
}
}
else
{
if (m_DropData == null)
{
m_DropData = new TreeViewDragging.DropData();
}
m_DropData.dropTargetControlID = 0;
m_DropData.rowMarkerControlID = 0;
int itemControlId = TreeView.GetItemControlID(targetItem, m_TreeView);
HandleAutoExpansion(itemControlId, targetItem, targetItemRect, betweenHalfHeight, mousePosition);
if (dropPosition == TreeViewDragging.DropPosition.Upon)
{
andDropVisualMode1 = DoDrag(targetItem, targetItem, false, dropPosition);
}
if (andDropVisualMode1 != DragAndDropVisualMode.None)
{
m_DropData.dropTargetControlID = itemControlId;
DragAndDrop.visualMode = andDropVisualMode1;
}
else if (parentItem != null)
{
DragAndDropVisualMode andDropVisualMode2 = DoDrag(parentItem, targetItem, false, dropPosition);
if (andDropVisualMode2 != DragAndDropVisualMode.None)
{
drawRowMarkerAbove = dropPosition == TreeViewDragging.DropPosition.Above;
m_DropData.rowMarkerControlID = itemControlId;
//m_DropData.dropTargetControlID = !drawRowMarkerAbove ? TreeView.GetItemControlID(parentItem) : 0;
DragAndDrop.visualMode = andDropVisualMode2;
}
}
}
Event.current.Use();
return(true);
}