public static HexBufferSpan GetLineAnchorSpan(HexSelection selection) {
if (selection == null)
throw new ArgumentNullException(nameof(selection));
if (selection.IsEmpty)
return selection.HexView.Caret.ContainingHexViewLine.BufferSpan;
var anchorExtent = selection.HexView.GetHexViewLineContainingBufferPosition(selection.AnchorPoint).BufferSpan;
if (selection.AnchorPoint >= selection.ActivePoint) {
if (anchorExtent.Start == selection.AnchorPoint && selection.AnchorPoint > selection.HexView.BufferLines.BufferStart)
anchorExtent = selection.HexView.GetHexViewLineContainingBufferPosition(selection.AnchorPoint - 1).BufferSpan;
}
return anchorExtent;
}
public SelectionState(HexSelection selection) {
state = (byte)(selection.IsEmpty ? 1 : 0);
}