public virtual void DragCleanup(bool revertExpanded)
{
if (this.m_DropData != null)
{
if (this.m_DropData.expandedArrayBeforeDrag != null && revertExpanded)
{
this.RestoreExpanded(new List <int>(this.m_DropData.expandedArrayBeforeDrag));
}
this.m_DropData = new TreeViewDragging.DropData();
}
}
public virtual bool DragElement(TreeViewItem targetItem, Rect targetItemRect, bool firstItem)
{
if (targetItem == null)
{
if (this.m_DropData != null)
{
this.m_DropData.dropTargetControlID = 0;
this.m_DropData.rowMarkerControlID = 0;
}
bool perform = Event.current.type == EventType.DragPerform;
DragAndDrop.visualMode = this.DoDrag((TreeViewItem)null, (TreeViewItem)null, perform, TreeViewDragging.DropPosition.Below);
if (DragAndDrop.visualMode != DragAndDropVisualMode.None && perform)
{
this.FinalizeDragPerformed(true);
}
return(false);
}
Vector2 mousePosition = Event.current.mousePosition;
bool flag = this.m_TreeView.data.CanBeParent(targetItem);
Rect rect = targetItemRect;
float betweenHalfHeight = !flag ? targetItemRect.height * 0.5f : this.m_TreeView.gui.halfDropBetweenHeight;
if (firstItem)
{
rect.yMin -= betweenHalfHeight;
}
rect.yMax += betweenHalfHeight;
if (!rect.Contains(mousePosition))
{
return(false);
}
TreeViewDragging.DropPosition dropPosition = (double)mousePosition.y < (double)targetItemRect.yMax - (double)betweenHalfHeight ? (!firstItem || (double)mousePosition.y > (double)targetItemRect.yMin + (double)betweenHalfHeight ? (!flag ? TreeViewDragging.DropPosition.Above : TreeViewDragging.DropPosition.Upon) : TreeViewDragging.DropPosition.Above) : TreeViewDragging.DropPosition.Below;
TreeViewItem parentItem = !this.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 = this.DoDrag(targetItem, targetItem, true, dropPosition);
}
if (andDropVisualMode1 == DragAndDropVisualMode.None && parentItem != null)
{
andDropVisualMode1 = this.DoDrag(parentItem, targetItem, true, dropPosition);
}
if (andDropVisualMode1 != DragAndDropVisualMode.None)
{
this.FinalizeDragPerformed(false);
}
else
{
this.DragCleanup(true);
this.m_TreeView.NotifyListenersThatDragEnded((int[])null, false);
}
}
else
{
if (this.m_DropData == null)
{
this.m_DropData = new TreeViewDragging.DropData();
}
this.m_DropData.dropTargetControlID = 0;
this.m_DropData.rowMarkerControlID = 0;
int itemControlId = TreeView.GetItemControlID(targetItem);
this.HandleAutoExpansion(itemControlId, targetItem, targetItemRect, betweenHalfHeight, mousePosition);
if (dropPosition == TreeViewDragging.DropPosition.Upon)
{
andDropVisualMode1 = this.DoDrag(targetItem, targetItem, false, dropPosition);
}
if (andDropVisualMode1 != DragAndDropVisualMode.None)
{
this.m_DropData.dropTargetControlID = itemControlId;
DragAndDrop.visualMode = andDropVisualMode1;
}
else if (targetItem != null && parentItem != null)
{
DragAndDropVisualMode andDropVisualMode2 = this.DoDrag(parentItem, targetItem, false, dropPosition);
if (andDropVisualMode2 != DragAndDropVisualMode.None)
{
this.drawRowMarkerAbove = dropPosition == TreeViewDragging.DropPosition.Above;
this.m_DropData.rowMarkerControlID = itemControlId;
this.m_DropData.dropTargetControlID = !this.drawRowMarkerAbove ? TreeView.GetItemControlID(parentItem) : 0;
DragAndDrop.visualMode = andDropVisualMode2;
}
}
}
Event.current.Use();
return(true);
}
public virtual bool DragElement(TreeViewItem targetItem, Rect targetItemRect, bool firstItem)
{
if (targetItem == null)
{
if (this.m_DropData != null)
{
this.m_DropData.dropTargetControlID = 0;
this.m_DropData.rowMarkerControlID = 0;
}
bool flag = Event.current.type == EventType.DragPerform;
DragAndDrop.visualMode = this.DoDrag(null, null, flag, TreeViewDragging.DropPosition.Below);
if (DragAndDrop.visualMode != DragAndDropVisualMode.None && flag)
{
this.FinalizeDragPerformed(true);
}
return(false);
}
Vector2 mousePosition = Event.current.mousePosition;
bool flag2 = this.m_TreeView.data.CanBeParent(targetItem);
Rect rect = targetItemRect;
float num = (!flag2) ? (targetItemRect.height * 0.5f) : this.m_TreeView.gui.halfDropBetweenHeight;
if (firstItem)
{
rect.yMin -= num;
}
rect.yMax += num;
if (!rect.Contains(mousePosition))
{
return(false);
}
TreeViewDragging.DropPosition dropPosition;
if (mousePosition.y >= targetItemRect.yMax - num)
{
dropPosition = TreeViewDragging.DropPosition.Below;
}
else if (firstItem && mousePosition.y <= targetItemRect.yMin + num)
{
dropPosition = TreeViewDragging.DropPosition.Above;
}
else
{
dropPosition = ((!flag2) ? TreeViewDragging.DropPosition.Above : TreeViewDragging.DropPosition.Upon);
}
TreeViewItem treeViewItem;
if (this.m_TreeView.data.IsExpanded(targetItem) && targetItem.hasChildren)
{
treeViewItem = targetItem;
}
else
{
treeViewItem = targetItem.parent;
}
DragAndDropVisualMode dragAndDropVisualMode = DragAndDropVisualMode.None;
if (Event.current.type == EventType.DragPerform)
{
if (dropPosition == TreeViewDragging.DropPosition.Upon)
{
dragAndDropVisualMode = this.DoDrag(targetItem, targetItem, true, dropPosition);
}
if (dragAndDropVisualMode == DragAndDropVisualMode.None && treeViewItem != null)
{
dragAndDropVisualMode = this.DoDrag(treeViewItem, targetItem, true, dropPosition);
}
if (dragAndDropVisualMode != DragAndDropVisualMode.None)
{
this.FinalizeDragPerformed(false);
}
else
{
this.DragCleanup(true);
this.m_TreeView.NotifyListenersThatDragEnded(null, false);
}
}
else
{
if (this.m_DropData == null)
{
this.m_DropData = new TreeViewDragging.DropData();
}
this.m_DropData.dropTargetControlID = 0;
this.m_DropData.rowMarkerControlID = 0;
int itemControlID = TreeView.GetItemControlID(targetItem);
this.HandleAutoExpansion(itemControlID, targetItem, targetItemRect, num, mousePosition);
if (dropPosition == TreeViewDragging.DropPosition.Upon)
{
dragAndDropVisualMode = this.DoDrag(targetItem, targetItem, false, dropPosition);
}
if (dragAndDropVisualMode != DragAndDropVisualMode.None)
{
this.m_DropData.dropTargetControlID = itemControlID;
DragAndDrop.visualMode = dragAndDropVisualMode;
}
else if (targetItem != null && treeViewItem != null)
{
dragAndDropVisualMode = this.DoDrag(treeViewItem, targetItem, false, dropPosition);
if (dragAndDropVisualMode != DragAndDropVisualMode.None)
{
this.drawRowMarkerAbove = (dropPosition == TreeViewDragging.DropPosition.Above);
this.m_DropData.rowMarkerControlID = itemControlID;
this.m_DropData.dropTargetControlID = ((!this.drawRowMarkerAbove) ? TreeView.GetItemControlID(treeViewItem) : 0);
DragAndDrop.visualMode = dragAndDropVisualMode;
}
}
}
Event.current.Use();
return(true);
}
public virtual bool DragElement(TreeViewItem targetItem, Rect targetItemRect, bool firstItem)
{
if (targetItem == null)
{
if (this.m_DropData != null)
{
this.m_DropData.dropTargetControlID = 0;
this.m_DropData.rowMarkerControlID = 0;
}
bool flag = Event.current.type == EventType.DragPerform;
DragAndDrop.visualMode = this.DoDrag(null, null, flag, TreeViewDragging.DropPosition.Below);
if (DragAndDrop.visualMode != DragAndDropVisualMode.None && flag)
{
this.FinalizeDragPerformed(true);
}
return false;
}
Vector2 mousePosition = Event.current.mousePosition;
bool flag2 = this.m_TreeView.data.CanBeParent(targetItem);
Rect rect = targetItemRect;
float num = (!flag2) ? (targetItemRect.height * 0.5f) : this.m_TreeView.gui.halfDropBetweenHeight;
if (firstItem)
{
rect.yMin -= num;
}
rect.yMax += num;
if (!rect.Contains(mousePosition))
{
return false;
}
TreeViewDragging.DropPosition dropPosition;
if (!flag2 || mousePosition.y >= targetItemRect.yMax - num)
{
dropPosition = TreeViewDragging.DropPosition.Below;
}
else
{
if (!flag2 || (firstItem && mousePosition.y <= targetItemRect.yMin + num))
{
dropPosition = TreeViewDragging.DropPosition.Above;
}
else
{
dropPosition = TreeViewDragging.DropPosition.Upon;
}
}
TreeViewItem treeViewItem;
if (this.m_TreeView.data.IsExpanded(targetItem) && targetItem.hasChildren)
{
treeViewItem = targetItem;
}
else
{
treeViewItem = targetItem.parent;
}
DragAndDropVisualMode dragAndDropVisualMode = DragAndDropVisualMode.None;
if (Event.current.type == EventType.DragPerform)
{
if (dropPosition == TreeViewDragging.DropPosition.Upon)
{
dragAndDropVisualMode = this.DoDrag(targetItem, targetItem, true, dropPosition);
}
if (dragAndDropVisualMode == DragAndDropVisualMode.None && treeViewItem != null)
{
dragAndDropVisualMode = this.DoDrag(treeViewItem, targetItem, true, dropPosition);
}
if (dragAndDropVisualMode != DragAndDropVisualMode.None)
{
this.FinalizeDragPerformed(false);
}
else
{
this.DragCleanup(true);
this.m_TreeView.NotifyListenersThatDragEnded(null, false);
}
}
else
{
if (this.m_DropData == null)
{
this.m_DropData = new TreeViewDragging.DropData();
}
this.m_DropData.dropTargetControlID = 0;
this.m_DropData.rowMarkerControlID = 0;
int itemControlID = TreeView.GetItemControlID(targetItem);
this.HandleAutoExpansion(itemControlID, targetItem, targetItemRect, num, mousePosition);
if (dropPosition == TreeViewDragging.DropPosition.Upon)
{
dragAndDropVisualMode = this.DoDrag(targetItem, targetItem, false, dropPosition);
}
if (dragAndDropVisualMode != DragAndDropVisualMode.None)
{
this.m_DropData.dropTargetControlID = itemControlID;
DragAndDrop.visualMode = dragAndDropVisualMode;
}
else
{
if (targetItem != null && treeViewItem != null)
{
dragAndDropVisualMode = this.DoDrag(treeViewItem, targetItem, false, dropPosition);
if (dragAndDropVisualMode != DragAndDropVisualMode.None)
{
this.drawRowMarkerAbove = (dropPosition == TreeViewDragging.DropPosition.Above);
this.m_DropData.rowMarkerControlID = itemControlID;
this.m_DropData.dropTargetControlID = ((!this.drawRowMarkerAbove) ? TreeView.GetItemControlID(treeViewItem) : 0);
DragAndDrop.visualMode = dragAndDropVisualMode;
}
}
}
}
Event.current.Use();
return true;
}
public virtual void DragCleanup(bool revertExpanded)
{
if (this.m_DropData != null)
{
if (this.m_DropData.expandedArrayBeforeDrag != null && revertExpanded)
{
this.RestoreExpanded(new List<int>(this.m_DropData.expandedArrayBeforeDrag));
}
this.m_DropData = new TreeViewDragging.DropData();
}
}
public virtual bool DragElement(TreeViewItem targetItem, Rect targetItemRect, bool firstItem)
{
if (targetItem == null)
{
if (this.m_DropData != null)
{
this.m_DropData.dropTargetControlID = 0;
this.m_DropData.rowMarkerControlID = 0;
}
bool perform = Event.current.type == EventType.DragPerform;
DragAndDrop.visualMode = this.DoDrag((TreeViewItem) null, (TreeViewItem) null, perform, TreeViewDragging.DropPosition.Below);
if (DragAndDrop.visualMode != DragAndDropVisualMode.None && perform)
this.FinalizeDragPerformed(true);
return false;
}
Vector2 mousePosition = Event.current.mousePosition;
bool flag = this.m_TreeView.data.CanBeParent(targetItem);
Rect rect = targetItemRect;
float betweenHalfHeight = !flag ? targetItemRect.height * 0.5f : this.m_TreeView.gui.halfDropBetweenHeight;
if (firstItem)
rect.yMin -= betweenHalfHeight;
rect.yMax += betweenHalfHeight;
if (!rect.Contains(mousePosition))
return false;
TreeViewDragging.DropPosition dropPosition = (double) mousePosition.y < (double) targetItemRect.yMax - (double) betweenHalfHeight ? (!firstItem || (double) mousePosition.y > (double) targetItemRect.yMin + (double) betweenHalfHeight ? (!flag ? TreeViewDragging.DropPosition.Above : TreeViewDragging.DropPosition.Upon) : TreeViewDragging.DropPosition.Above) : TreeViewDragging.DropPosition.Below;
TreeViewItem parentItem = !this.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 = this.DoDrag(targetItem, targetItem, true, dropPosition);
if (andDropVisualMode1 == DragAndDropVisualMode.None && parentItem != null)
andDropVisualMode1 = this.DoDrag(parentItem, targetItem, true, dropPosition);
if (andDropVisualMode1 != DragAndDropVisualMode.None)
{
this.FinalizeDragPerformed(false);
}
else
{
this.DragCleanup(true);
this.m_TreeView.NotifyListenersThatDragEnded((int[]) null, false);
}
}
else
{
if (this.m_DropData == null)
this.m_DropData = new TreeViewDragging.DropData();
this.m_DropData.dropTargetControlID = 0;
this.m_DropData.rowMarkerControlID = 0;
int itemControlId = TreeView.GetItemControlID(targetItem);
this.HandleAutoExpansion(itemControlId, targetItem, targetItemRect, betweenHalfHeight, mousePosition);
if (dropPosition == TreeViewDragging.DropPosition.Upon)
andDropVisualMode1 = this.DoDrag(targetItem, targetItem, false, dropPosition);
if (andDropVisualMode1 != DragAndDropVisualMode.None)
{
this.m_DropData.dropTargetControlID = itemControlId;
DragAndDrop.visualMode = andDropVisualMode1;
}
else if (targetItem != null && parentItem != null)
{
DragAndDropVisualMode andDropVisualMode2 = this.DoDrag(parentItem, targetItem, false, dropPosition);
if (andDropVisualMode2 != DragAndDropVisualMode.None)
{
this.drawRowMarkerAbove = dropPosition == TreeViewDragging.DropPosition.Above;
this.m_DropData.rowMarkerControlID = itemControlId;
this.m_DropData.dropTargetControlID = !this.drawRowMarkerAbove ? TreeView.GetItemControlID(parentItem) : 0;
DragAndDrop.visualMode = andDropVisualMode2;
}
}
}
Event.current.Use();
return true;
}
public virtual void DragCleanup(bool revertExpanded)
{
if (this.m_DropData == null)
return;
if (this.m_DropData.expandedArrayBeforeDrag != null && revertExpanded)
this.RestoreExpanded(new List<int>((IEnumerable<int>) this.m_DropData.expandedArrayBeforeDrag));
this.m_DropData = new TreeViewDragging.DropData();
}