public static MayBeEmptyTempContext <LineBox> BorrowLineBox(out LineBox linebox)
{
if (!MayBeEmptyTempContext <LineBox> .IsInit())
{
MayBeEmptyTempContext <LineBox> .SetNewHandler(
() => new LineBox(),
line => line.Reset());
}
return(MayBeEmptyTempContext <LineBox> .Borrow(out linebox));
}
public void FlushOnce()
{
if (_owner != null)
{
//in the case that we want to preserve linebox output
List <RenderElemLineBox> lines = _owner.Lines;
int j = _lineboxes.Count;
if (lines == null)
{
_owner.Lines = lines = new List <RenderElemLineBox>(j);
}
//clear only line content
lines.Clear();
for (int i = 0; i < j; ++i)
{
LineBox linebox = _lineboxes[i];
RenderElemLineBox newline = new RenderElemLineBox
{
LineTop = linebox.LineTop,
LineHeight = linebox.LineHeight,
ParentRenderElement = _owner//***
};
lines.Add(newline);
LinkedListNode <IAbstractRect> node = linebox._linkList.First;
while (node != null)
{
//content in the node
newline.Add(node.Value.GetPrimaryRenderElement());
node = node.Next;//**
}
}
_owner = null;
}
}