public TreeViewItemWrapper(
TSource dataItem,
ITreeviewSourceDecoder <TSource> decoder,
ITreeViewItemWrapper <TSource> parent,
bool isLastSibling,
ITreeview <TSource> treeview)
{
if (dataItem == null)
{
throw new ArgumentNullException("dataItem");
}
if (decoder == null)
{
throw new ArgumentNullException("decoder");
}
if (treeview == null)
{
throw new ArgumentNullException("treeview");
}
this._dataItem = dataItem;
this._decoder = decoder;
this._parent = parent;
this._isLastSibling = isLastSibling;
this.treeview = treeview;
}
private void RenderChildren(ITreeViewItemWrapper <TSource> parent, ITreeviewSourceDecoder <TSource> treeviewSourceDecoder, EventType currentEventType)
{
foreach (var child in parent.Children)
{
treeviewRowRenderer.RenderRow(child, treeviewSourceDecoder, currentEventType);
if (child.IsExpanded)
{
RenderChildren(child, treeviewSourceDecoder, currentEventType);
}
}
}
public void RenderRow(ITreeViewItemWrapper <TSource> item, ITreeviewSourceDecoder <TSource> treeviewSourceDecoder, EventType currentEventType)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
if (treeviewSourceDecoder == null)
{
throw new ArgumentNullException("treeviewSourceDecoder");
}
var gridRect = new Rect(0, 0, 0, 0);
guiLayout.BeginHorizontal();
guiLayout.Space(1);
// In order to use the GUI.DrawTexture which takes absolute position on the page
// we have to get the relative location of the space we just drew.
if (currentEventType == EventType.repaint)
{
gridRect = guiLayout.GetLastRect();
}
var structureX = RenderTreeviewIcons(item, gridRect, currentEventType);
var iconTopLeft = new Vector2(gridRect.x + structureX, gridRect.y);
guiLayout.Space(gridRect.x + structureX);
var itemIconDimensions = iconRenderer.RenderItemIcon(item, iconTopLeft);
if (itemIconDimensions.x > 0)
{
rowClickableLocations.RegisterRowIcon(new Rect(iconTopLeft.x, iconTopLeft.y, itemIconDimensions.x, itemIconDimensions.y), item);
}
guiLayout.Space(itemIconDimensions.x);
var renderContext = new RenderDisplayContext(item.IsSelected, item.IsExpanded, item.IsActive);
treeviewSourceDecoder.RenderDisplay(item.Value, renderContext);
if (currentEventType == EventType.repaint)
{
gridRect = guiLayout.GetLastRect();
rowClickableLocations.RegisterRowContent(gridRect, item);
}
guiLayout.EndHorizontal();
}
public ITreeViewItemWrapper <TSource> Root(ITreeview <TSource> treeview, ITreeviewSourceDecoder <TSource> sourceDecoder)
{
if (treeview == null)
{
throw new ArgumentNullException("treeview");
}
if (sourceDecoder == null)
{
throw new ArgumentNullException("sourceDecoder");
}
var itemSourceCopy = treeview.ItemsSource;
if (itemSourceCopy == null)
{
return(null);
}
if (itemSourceCopy != this._decodedSource)
{
// Itemsource on treeview has changed since last cached.
this._cachedRoot = null;
}
if (this._cachedRoot != null)
{
return(this._cachedRoot);
}
var stronglyTypedSource = itemSourceCopy as TSource;
if (stronglyTypedSource == null)
{
this._log.LogError("Source is of type {0}, expected type {1}", treeview.ItemsSource.GetType().Name, typeof(TSource).Name);
return(null);
}
this._cachedRoot = new TreeViewItemWrapper <TSource>(stronglyTypedSource, sourceDecoder, null, true, treeview);
this._decodedSource = itemSourceCopy;
return(this._cachedRoot);
}
protected virtual void Init()
{
TreeviewIcons = new CustomItemTreeviewIcons();
TreeviewSourceDecoder = new Treeview_DataRecorder(this.guiLayout);
}
