public static TextRange[] GetTextPointers(IHexAsnNode treeNode, BindableRichTextBox rtb, ScrollViewer scroller)
{
TextPointer[] pointers = new TextPointer[6];
// tag
pointers[0] = rtb.Document.ContentStart.GetPositionAtOffset(
getOffset(treeNode.Offset)
);
pointers[1] = rtb.Document.ContentStart.GetPositionAtOffset(
getOffset(treeNode.Offset + 1)
);
// length bytes
pointers[2] = rtb.Document.ContentStart.GetPositionAtOffset(
getOffset(treeNode.Offset + 1)
);
pointers[3] = rtb.Document.ContentStart.GetPositionAtOffset(
getOffset(treeNode.PayloadStartOffset)
);
//// payload
pointers[4] = rtb.Document.ContentStart.GetPositionAtOffset(
getOffset(treeNode.PayloadStartOffset)
);
pointers[5] = rtb.Document.ContentStart.GetPositionAtOffset(
getOffset(treeNode.PayloadStartOffset + treeNode.PayloadLength)
);
ScrollToPosition(pointers[0], rtb, scroller);
return(GetRanges(pointers));
}
static void ScrollToPosition(TextPointer startPointer, BindableRichTextBox rtb, ScrollViewer scroller)
{
rtb.CaretPosition = startPointer;
scroller.ScrollToVerticalOffset(rtb.FontSize * (rtb.CurrentLine - 1));
}
