private void RememberExpansion()
{
m_expandedCollections.Clear();
foreach (string category in TreeAdapter.GetChildren(TreeAdapter))
{
if (TreeControlAdapter.IsExpanded(category))
{
m_expandedCollections.Add(category);
}
}
}
/// <summary>
/// Clears all items from the palette</summary>
public void RemoveAllItems()
{
m_searchInput.ClearSearch();
TreeAdapter.RemoveAllItems();
m_objectClients.Clear();
TreeControl.Root.Clear();
TreeAdapter.RefreshControl();
}
/// <summary>
/// Adds an item to the palette in the given category</summary>
/// <param name="item">Palette item</param>
/// <param name="categoryName">Category name</param>
/// <param name="client">Client that instantiates item during drag-drop operations</param>
public void AddItem(object item, string categoryName, IPaletteClient client)
{
if (m_objectClients.ContainsKey(item))
{
throw new InvalidOperationException("duplicate item");
}
if (categoryName != null)
{
m_objectClients.Add(item, client);
TreeAdapter.AddItem(item, categoryName);
}
}
//Stack of open elements
public OpenElementStack(Node document,
Func <Element, string> getNamespaceUri,
Func <Element, string> getTagName,
Func <TemplateElement, DocumentFragment> getTemplateContent)
{
this.StackTop = -1;
this.items = new List <Element>();
this.Current = document;
this.CurrentTagName = null;
this.CurrentTmplContent = null;
this.TmplCount = 0;
this.treeAdapter = new TreeAdapter(getNamespaceUri,
getTagName,
getTemplateContent);
}
private void searchInput_Updated(object sender, EventArgs e)
{
if (TreeControl.Root == null)
{
return;
}
if (m_searchInput.IsNullOrEmpty())
{
if (m_searching)
{
// get the tree control to force-reload the tree data
TreeAdapter.RefreshControl();
RestoreExpansion();
}
m_searching = false;
return;
}
else
{
if (!m_searching)
{
RememberExpansion();
}
m_searching = true;
}
TreeAdapter.RefreshControl();
// expand categories that have matched children
foreach (object category in TreeAdapter.GetChildren(TreeAdapter))
{
foreach (object typeName in TreeAdapter.GetChildren(category))
{
ItemInfo info = new WinFormsItemInfo();
TreeAdapter.GetInfo(typeName, info);
if (m_searchInput.Matches(info.Label))
{
TreeControlAdapter.Expand(category);
break;
}
}
}
RestoreExpansion();
}
private static TreeAdapter Find(int nextIndex, int index, int[] sequense)
{
var newIndex = index + nextIndex;
if (newIndex < sequense.Length &&
sequense[newIndex] - sequense[index] <= 3)
{
if (!keyValuePairs.TryGetValue(newIndex, out var adapter))
{
adapter = new TreeAdapter(newIndex, sequense);
keyValuePairs.Add(newIndex, adapter);
}
return(adapter);
}
return(null);
}
/// <summary>
/// Removes an item from the palette</summary>
/// <param name="item">Item to remove</param>
public void RemoveItem(object item)
{
TreeAdapter.RemoveItem(item);
m_objectClients.Remove(item);
}
