public void EmptyStringDoesNotThrow()
{
RangeIntMatcher rangeIntMatch = new RangeIntMatcher(3, 3);
var tssLabel = m_tsf.EmptyString(WsDummy);
Assert.IsFalse(rangeIntMatch.Matches(tssLabel));
}
/// <summary>
/// Override to handle ktagAlternateValue.
/// </summary>
public override ITsString get_StringProp(int hvo, int tag)
{
if (tag == ktagAlternateValue)
{
ITsString result;
if (m_stringCache.TryGetValue(new HvoFlidKey(hvo, tag), out result))
{
return(result);
}
// Try to find a sensible WS from existing data, avoiding a crash if possible.
// See FWR-3598.
ITsString tss = null;
foreach (var x in m_stringCache.Keys)
{
tss = m_stringCache[x];
if (x.Flid == tag)
{
break;
}
}
if (tss == null)
{
foreach (var x in m_mlStringCache.Keys)
{
ITsStrFactory tsf = TsStrFactoryClass.Create();
return(tsf.EmptyString(x.Ws));
}
}
if (tss != null)
{
ITsStrFactory tsf = TsStrFactoryClass.Create();
var ws = TsStringUtils.GetWsOfRun(tss, 0);
return(tsf.EmptyString(ws));
}
// Enhance JohnT: might be desirable to return empty string rather than crashing,
// but as things stand, we don't know what would be a sensible WS.
throw new InvalidOperationException("trying to read a preview value not previously cached");
}
return(base.get_StringProp(hvo, tag));
}
/// <summary>
/// Reload the vector in the root box, presumably after it's been modified by a chooser.
/// </summary>
public override void ReloadVector()
{
CheckDisposed();
ITsStrFactory tsf = m_fdoCache.TsStrFactory;
int ws = 0;
if (m_rootObj != null && m_rootObj.IsValidObject)
{
ILgWritingSystemFactory wsf = m_fdoCache.WritingSystemFactory;
int count = m_sda.get_VecSize(m_rootObj.Hvo, m_rootFlid);
// This loop is mostly redundant now that the decorator will generate labels itself as needed.
// It still serves the purpose of figuring out the WS that should be used for the 'fake' item where the user
// is typing to select.
for (int i = 0; i < count; ++i)
{
int hvo = m_sda.get_VecItem(m_rootObj.Hvo, m_rootFlid, i);
Debug.Assert(hvo != 0);
ws = m_sda.GetLabelFor(hvo).get_WritingSystem(0);
}
if (ws == 0)
{
var list = (ICmPossibilityList)m_rootObj.ReferenceTargetOwner(m_rootFlid);
ws = list.IsVernacular ? m_fdoCache.ServiceLocator.WritingSystems.DefaultVernacularWritingSystem.Handle
: m_fdoCache.ServiceLocator.WritingSystems.DefaultAnalysisWritingSystem.Handle;
if (list.PossibilitiesOS.Count > 0)
{
ObjectLabel label = ObjectLabel.CreateObjectLabel(m_fdoCache, list.PossibilitiesOS[0], m_displayNameProperty, m_displayWs);
ws = label.AsTss.get_WritingSystem(0);
}
}
}
if (ws == 0)
{
ws = m_fdoCache.ServiceLocator.WritingSystems.DefaultAnalysisWritingSystem.Handle;
}
m_sda.Strings[khvoFake] = tsf.EmptyString(ws);
base.ReloadVector();
}