/// <summary>
/// Update the new selection. This is called by rule formula view when selection changes.
/// </summary>
/// <param name="vwselNew">The new selection.</param>
private void UpdateSelection(IVwSelection vwselNew)
{
CheckDisposed();
SelectionHelper sel = SelectionHelper.Create(vwselNew, this);
if (sel != null)
{
object ctxt = m_patternControl.GetContext(sel);
// if context is null then we are trying to select outside of a single context
if (ctxt == null)
{
if (sel.IsRange)
{
// ensure that a range selection only occurs within one context
object topCtxt = m_patternControl.GetContext(sel, SelectionHelper.SelLimitType.Top);
object bottomCtxt = m_patternControl.GetContext(sel, SelectionHelper.SelLimitType.Bottom);
var limit = SelectionHelper.SelLimitType.Top;
if (topCtxt != null)
{
limit = SelectionHelper.SelLimitType.Top;
ctxt = topCtxt;
}
else if (bottomCtxt != null)
{
limit = SelectionHelper.SelLimitType.Bottom;
ctxt = bottomCtxt;
}
if (ctxt != null)
{
IVwSelection newSel = SelectCell(ctxt, limit == SelectionHelper.SelLimitType.Bottom, false);
sel.ReduceToIp(limit);
IVwSelection otherSel = sel.SetSelection(this, false, false);
if (sel.Selection.EndBeforeAnchor)
{
RootBox.MakeRangeSelection(limit == SelectionHelper.SelLimitType.Top ? newSel : otherSel,
limit == SelectionHelper.SelLimitType.Top ? otherSel : newSel, true);
}
else
{
RootBox.MakeRangeSelection(limit == SelectionHelper.SelLimitType.Top ? otherSel : newSel,
limit == SelectionHelper.SelLimitType.Top ? newSel : otherSel, true);
}
}
}
}
else
{
AdjustSelection(sel);
}
}
}
/// <summary>
/// Adjusts the selection.
/// </summary>
/// <param name="sel">The selection.</param>
private void AdjustSelection(SelectionHelper sel)
{
IVwSelection anchorSel;
int curHvo, curIch, curTag;
// anchor IP
if (!GetSelectionInfo(sel, SelectionHelper.SelLimitType.Anchor, out anchorSel, out curHvo, out curIch, out curTag))
{
return;
}
IVwSelection endSel;
int curEndHvo, curEndIch, curEndTag;
// end IP
if (!GetSelectionInfo(sel, SelectionHelper.SelLimitType.End, out endSel, out curEndHvo, out curEndIch, out curEndTag))
{
return;
}
// create range selection
IVwSelection vwSel = RootBox.MakeRangeSelection(anchorSel, endSel, false);
if (vwSel != null)
{
ITsString tss;
int ws;
bool prev;
// only install the adjusted selection if it is different then the current selection
int wholeHvo, wholeIch, wholeTag, wholeEndHvo, wholeEndIch, wholeEndTag;
vwSel.TextSelInfo(false, out tss, out wholeIch, out prev, out wholeHvo, out wholeTag, out ws);
vwSel.TextSelInfo(true, out tss, out wholeEndIch, out prev, out wholeEndHvo, out wholeEndTag, out ws);
if (wholeHvo != curHvo || wholeEndHvo != curEndHvo || wholeIch != curIch || wholeEndIch != curEndIch ||
wholeTag != curTag || wholeEndTag != curEndTag)
{
vwSel.Install();
}
}
}