lwptabrack.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *  Sun Microsystems Inc., October, 2000
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 *  GNU Lesser General Public License Version 2.1
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 *  Sun Industry Standards Source License Version 1.1
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 ************************************************************************/
/*************************************************************************
 * @file
 * Tabrack for LwpTabPiece object.
 ************************************************************************/
#include "lwptabrack.hxx"
#include <lwpobjstrm.hxx>
 
#include <stdexcept>
 
LwpTab::LwpTab()
  : m_nX(0),
    m_nType(0),
    m_nLeader(0),
    m_nRelativeType(0),
    m_nAlignChar(0)      //be careful,not quite sure it's 8-bit,perhaps 16-bit.
{
}
 
void    LwpTab::Read(LwpObjectStream *pStrm)
{
    m_nX = pStrm->QuickReaduInt32();
    m_nType = pStrm->QuickReaduInt8();
    m_nLeader = pStrm->QuickReaduInt8();
    m_nRelativeType = pStrm->QuickReaduInt8();
    m_nAlignChar = pStrm->QuickReaduInt16();
}
 
LwpTabRack::LwpTabRack(LwpObjectHeader objHdr, LwpSvStream* pStrm)
   : LwpObject(objHdr,pStrm),
     m_nNumTabs(0)
{
}
 
void LwpTabRack::Read()
{
    m_NextID.ReadIndexed(m_pObjStrm.get());
 
    m_nNumTabs = m_pObjStrm->QuickReaduInt16();
    if (m_nNumTabs > MaxTabs)
        throw std::range_error("corrupt LwpTabRack");
    for (int i=0; i<m_nNumTabs; ++i)
    {
        m_aTabs[i].Read(m_pObjStrm.get());
        m_pObjStrm->SkipExtra();
    }
    m_pObjStrm->SkipExtra();
}
 
LwpTab* LwpTabRack::Lookup(sal_uInt16 nIndex)
{
    /* Is the tab in this tabrack? */
    if(nIndex<m_nNumTabs)
    {
        return &m_aTabs[nIndex];
    }
    //return NULL;
    /* It's not in this tabrack, so get it out of our next. */
    if (!GetNext())
        return nullptr;        /* ouch */
 
    return GetNext()->Lookup(nIndex - m_nNumTabs);
}
 
LwpTabRack* LwpTabRack::GetNext()
{
    return dynamic_cast<LwpTabRack*>(m_NextID.obj().get());
}
 
sal_uInt16 LwpTabRack::GetNumTabs()
{
    sal_uInt16 nNum=0;
    if(GetNext())
    {
        nNum = GetNext()->GetNumTabs();
    }
    return m_nNumTabs+nNum;
}
 
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