public async Task NextFrame()
{
// PrevInteractedElement = InteractedElement;
const int elmtsToTriggerCleanup = 100;
const int elmtsToCleanup = 50;
var undrawnElements = ImElements.Values.Where(elmt => elmt.ImState == ImElement.State.NotDrawn)
.Take(elmtsToTriggerCleanup).ToList();
if (undrawnElements.Count == elmtsToTriggerCleanup)
{
foreach (var elmt in undrawnElements.Take(elmtsToCleanup))
{
elmt.Unsubber(elmt.WpfElement, elmt.Handler);
ImElements.Remove(elmt.ID);
}
}
InteractedElementId = null;
WpfElement[] sortedWpfElements = ImElements.Values.Where(x => x.ImState == ImElement.State.Drawn)
.OrderBy(c => c.SortKey).Select(c => c.WpfElement).ToArray();
var wpfElementsChanged = DisplayedElements.Count != sortedWpfElements.Length ||
!Enumerable.Zip(
DisplayedElements.OfType <WpfElement>(),
sortedWpfElements,
(c1, c2) => c1 == c2).All(b => b);
if (wpfElementsChanged)
{
DisplayedElements.Clear();
foreach (var item in sortedWpfElements)
{
DisplayedElements.Add(item);
}
}
// Automatically go to next frame for each requested redraw
if (RemainingRedraws <= 0)
{
RemainingRedraws = 0;
await TCS.Task;
TCS = new TaskCompletionSource <bool>();
}
else
{
RemainingRedraws--;
}
foreach (var elmt in ImElements.Values)
{
elmt.ImState = ImElement.State.NotDrawn;
elmt.SortKey = 999999;
}
}
private static void ClearFixedHostPanelHelper( DataGridControl dataGrid, UIElementCollection collection )
{
TableViewScrollViewer tableViewScrollViewer = dataGrid.ScrollViewer as TableViewScrollViewer;
RowSelectorPane rowSelectorPane = ( tableViewScrollViewer != null ) ? tableViewScrollViewer.RowSelectorPane : null;
foreach( DependencyObject headerFooterItem in collection )
{
if( rowSelectorPane != null )
{
rowSelectorPane.FreeRowSelector( headerFooterItem );
}
dataGrid.ClearItemContainer( headerFooterItem, GetFixedItem( headerFooterItem ) );
DataGridControl.SetDataGridContext( headerFooterItem, null );
}
collection.Clear();
}
public void drawPose(UIElementCollection _children, coord[] _pose, Color _color)
{
_children.Clear();
_children.Add(getImage(_pose, _color));
}
