private protected bool IsCaretOnText(out ILayoutStringContentFocus textCellFocus)
{
textCellFocus = null;
if (Focus is ILayoutStringContentFocus AsTextFocus)
{
bool IsHandled = false;
switch (AsTextFocus.CellView.Frame)
{
case ILayoutCharacterFrame AsCharacterFrame:
IsHandled = true; // The focus was displayed directly with the character.
break;
case ILayoutNumberFrame AsNumberFrame:
case ILayoutTextValueFrame AsTextValueFrame:
textCellFocus = AsTextFocus;
IsHandled = true;
break;
}
Debug.Assert(IsHandled);
}
return(textCellFocus != null);
}
private protected void DrawTextCaret(ILayoutStringContentFocus textCellFocus)
{
ILayoutStringContentFocusableCellView CellView = textCellFocus.CellView;
Node Node = CellView.StateView.State.Node;
string PropertyName = CellView.PropertyName;
string Text = NodeTreeHelper.GetString(Node, PropertyName);
Point CellOrigin = CellView.CellOrigin;
Padding CellPadding = CellView.CellPadding;
Point OriginWithPadding = CellOrigin.Moved(CellPadding.Left, CellPadding.Top);
DrawContext.ShowCaret(OriginWithPadding, Text, FocusedTextStyle, ActualCaretMode, CaretPosition);
}