/// <summary>
/// Replace an existing item with a new one
/// </summary>
/// <param name="index">Where to do the replacement</param>
/// <param name="newItem">The new item</param>
public void ReplaceItem(int childIndex, StringTreeViewItem newItem)
{
if (children == null)
{
return;
}
// find location of the item with given index
// (should be the same, but just to make sure...)
int index = children.FindIndex(child => ((StringTreeViewItem)child).Index == childIndex);
if (index == -1)
{
throw new ArgumentException("Provided index does not exist inside the array.");
}
children[index] = newItem;
newItem.parent = this;
newItem.Index = index;
// NOTE: no child repair needed here
treeView.Reload();
treeView.SelectItem(newItem);
treeView.ExpandItem(newItem);
}
/// <inheritdoc/>
public override void DropItemAt(int index, StringTreeViewItem item)
{
children.Insert(index, item);
item.parent = this;
item.Key = null;
RepairChildStructure();
treeView.Reload();
treeView.SelectItem(item);
}
protected override void SelectionChanged(IList <int> selectedIds)
{
if (selectedIds.Count == 0)
{
activeItem = null;
return;
}
activeItem = FindItem(selectedIds[0], rootItem) as StringTreeViewItem;
if (activeItem.JsonType == JsonType.NotJson)
{
activeItem = null;
}
}
/// <inheritdoc/>
public override void DropItemAt(int index, StringTreeViewItem item)
{
if (item.Key == null || ContainsKey(item.Key))
{
item.Key = GenerateNewKey();
}
children.Insert(index, item);
item.parent = this;
RepairChildStructure();
treeView.Reload();
treeView.SelectItem(item);
}
protected override void SetupDragAndDrop(SetupDragAndDropArgs args)
{
if (args.draggedItemIDs.Count == 0)
{
return;
}
StringTreeViewItem item = FindItem(args.draggedItemIDs[0], rootItem) as StringTreeViewItem;
if (item == null || item.JsonType == JsonType.NotJson)
{
return;
}
DragAndDrop.PrepareStartDrag();
DragAndDrop.SetGenericData(typeof(StringTreeViewItem).FullName, item);
DragAndDrop.StartDrag(item.Label + item.StringValue);
}
/// <summary>
/// Replace an existing field with a new one
/// </summary>
/// <param name="key">Key of the field</param>
/// <param name="newItem">The new item to put here</param>
public void ReplaceField(string key, StringTreeViewItem newItem)
{
if (children == null)
{
return;
}
int index = children.FindIndex(child => (child as StringTreeViewItem)?.Key == key);
if (index == -1)
{
throw new ArgumentException("Provided key does not exist inside the object.");
}
children[index] = newItem;
newItem.parent = this;
newItem.Key = key;
// NOTE: no child repair needed here
treeView.Reload();
treeView.SelectItem(newItem);
treeView.ExpandItem(newItem);
}
/// <summary>
/// Drop an item at a given child index
/// </summary>
public virtual void DropItemAt(int index, StringTreeViewItem item)
{
// overriden by containers
}
