//
// ctor
//
public PDFPageNumberGroup(PDFPageNumbers owner, string groupName, PageNumberStyle style, int startindex)
{
this.Owner = owner;
this.GroupName = groupName;
this.GroupPageCount = 0;
this._options = new NumberGroupOptions()
{
Style = style, StartNumber = startindex
};
this._currSequence = null;
}
/// <summary>
/// Starts the counting of pages (from the specified page index)
/// </summary>
/// <param name="pgIndex"></param>
public void BeginCounting(int pgIndex)
{
if (null != _currSequence)
{
throw new InvalidOperationException("This group is already counting - use the IsCounting property to check first");
}
_currSequence = new NumberGroupSequence()
{
StartPageIndex = pgIndex, EndPageIndex = pgIndex, PreviousCount = this.GroupPageCount
};
}
/// <summary>
/// Completes a sequence of pages and adds the registation of page numbers to this
/// </summary>
public void EndCounting()
{
if (!this.IsCounting)
{
throw new InvalidOperationException("This group is not currently counting - use the isCounting property to check");
}
NumberGroupSequence seq = this._currSequence;
PDFPageNumberRegistration reg = new PDFPageNumberRegistration(seq.StartPageIndex, seq.EndPageIndex, this);
//If we have an existing count to this group then we need to add the numbering offset to the sequence
reg.PreviousLinkedRegistrationPageCount = this.GroupPageCount;
this.Owner.Registrations.Add(reg);
this.GroupPageCount += this._currSequence.SequencePageCount;
this._currSequence = null;
}
