/// <summary>
///
/// </summary>
/// <param name="hvoOwn"></param>
/// <param name="flid"></param>
/// <param name="hvo"></param>
/// <returns></returns>
public int GetObjIndex(int hvoOwn, int flid, int hvo)
{
return(m_sda.GetObjIndex(hvoOwn, flid, hvo));
}
/// <summary>
/// Given that idxCurSeg is the index of a segment of curPara, adjust both until it is the index of the
/// next segment (possibly in a later paragraph). Return false if no earlier segment exists in
/// the current text.
/// </summary
private static bool GetNextSeg(ref int idxCurSeg, ISilDataAccess sda,
ref StTxtPara curPara, int ktagParaSegments)
{
idxCurSeg++;
// This for usually exits early in the first iteration, and all we do in the method is increment idxCurSeg.
// It is even rarer to have more than one full iteration but could happen if there is an empty paragraph.
for (; ; )
{
int csegs = sda.get_VecSize(curPara.Hvo, ktagParaSegments);
if (idxCurSeg < csegs)
return true;
// set curPara to next para in StText. If there is none, fail.
int idxPara = sda.GetObjIndex(curPara.OwnerHVO, (int)StText.StTextTags.kflidParagraphs, curPara.Hvo);
int cpara = sda.get_VecSize(curPara.OwnerHVO, (int)StText.StTextTags.kflidParagraphs);
if (idxPara >= cpara - 1)
return false;
int hvoNext = sda.get_VecItem(curPara.OwnerHVO, (int)StText.StTextTags.kflidParagraphs, idxPara + 1);
curPara = CmObject.CreateFromDBObject(curPara.Cache, hvoNext, false) as StTxtPara;
idxCurSeg = 0;
}
}
/// <summary> Return the index of hvo in the flid vector of hvoOwn.</summary>
/// <param name='hvoOwn'>The object ID of the owner.</param>
/// <param name='flid'>The parameter on hvoOwn that owns hvo.</param>
/// <param name='hvo'>The target object ID we are looking for.</param>
/// <returns>
/// The index, or -1 if not found.
/// </returns>
public virtual int GetObjIndex(int hvoOwn, int flid, int hvo)
{
return(m_baseSda.GetObjIndex(hvoOwn, flid, hvo));
}
/// <summary>
/// Given that idxCurSeg is the index of a segment of curPara, adjust both until it is the index of the
/// previous segment (possibly in an earlier paragraph). Return false if no earlier segment exists in
/// the current text.
/// </summary
private static bool GetPrevSeg(ref int idxCurSeg, ISilDataAccess sda,
ref StTxtPara curPara, int ktagParaSegments)
{
idxCurSeg--;
// This while usually has no iterations, and all we do in the method is decrement idxCurSeg.
// It is even rarer to have more than one iteration but could happen if there is an empty paragraph.
while (idxCurSeg < 0)
{
// set curPara to previous para in StText. If there is none, fail.
int idxPara = sda.GetObjIndex(curPara.OwnerHVO, (int)StText.StTextTags.kflidParagraphs, curPara.Hvo);
if (idxPara == 0)
return false;
int hvoPrev = sda.get_VecItem(curPara.OwnerHVO, (int)StText.StTextTags.kflidParagraphs, idxPara - 1);
curPara = CmObject.CreateFromDBObject(curPara.Cache, hvoPrev, false) as StTxtPara;
idxCurSeg = sda.get_VecSize(curPara.Hvo, ktagParaSegments) - 1;
}
return true;
}