internal void _UpdateSync(PresentationVisual visual)
{
visual.Update();
foreach (var primitive in visual.Context.Primitives)
{
if (!_bounds.IsIntersectWith(primitive))
{
continue;
}
var bounds = GeometryHelper.RestrictBounds(_bounds, primitive.Property.Bounds);
_DrawPrimitive(primitive, bounds);
_UpdateBounds(bounds);
}
}
internal void _UpdateAsync(PresentationVisual visual)
{
if (visual.Mode != Mode.WatingForUpdate)
{
return;
}
visual.Mode = Mode.Updating;
visual.Update();
foreach (var primitive in visual.Context.Primitives)
{
if (_currentSource.IsCancellationRequested)
{
break;
}
if (!_bounds.IsIntersectWith(primitive))
{
continue;
}
var bounds = GeometryHelper.RestrictBounds(_bounds, primitive.Property.Bounds);
_DrawPrimitive(primitive, bounds);
}
visual.Mode = Mode.Completed;
}