PX_ChangeRecord * PX_ChangeRecord_DocProp::reverse(void) const
{
PX_ChangeRecord_DocProp * pcr
= new PX_ChangeRecord_DocProp(getRevType(),m_position,m_indexAP,getXID());
UT_ASSERT_HARMLESS(pcr);
return pcr;
}
PX_ChangeRecord * PX_ChangeRecord_Strux::reverse(void) const
{
PX_ChangeRecord_Strux * pcr
= new PX_ChangeRecord_Strux(getRevType(),m_position,m_indexAP,getXID(),m_struxType);
UT_ASSERT_HARMLESS(pcr);
return pcr;
}
bool pt_PieceTable::_insertObject(pf_Frag * pf,
PT_BlockOffset fragOffset,
PTObjectType pto,
PT_AttrPropIndex indexAP,
pf_Frag_Object * & pfo)
{
pfo = NULL;
if (!_createObject(pto,indexAP,&pfo))
return false;
pfo->setXID(getXID());
if (fragOffset == 0)
{
// we are at the beginning of a fragment, insert the
// new object immediately prior to it.
m_fragments.insertFrag(pf->getPrev(),pfo);
}
else if (fragOffset == pf->getLength())
{
// we are at the end of a fragment, insert the new
// object immediately after it.
m_fragments.insertFrag(pf,pfo);
}
else
{
// if the insert is in the middle of the (text) fragment, we
// split the current fragment and insert the object between
// them.
UT_return_val_if_fail (pf->getType() == pf_Frag::PFT_Text, false);
pf_Frag_Text * pft = static_cast<pf_Frag_Text *>(pf);
UT_uint32 lenTail = pft->getLength() - fragOffset;
PT_BufIndex biTail = m_varset.getBufIndex(pft->getBufIndex(),fragOffset);
pf_Frag_Text * pftTail = new pf_Frag_Text(this,biTail,lenTail,pft->getIndexAP(),pft->getField());
if (!pftTail)
goto MemoryError;
pft->changeLength(fragOffset);
m_fragments.insertFrag(pft,pfo);
m_fragments.insertFrag(pfo,pftTail);
}
return true;
MemoryError:
if (pfo)
delete pfo;
return false;
}
bool pf_Frag_Strux::createSpecialChangeRecord(PX_ChangeRecord ** ppcr,
PT_DocPosition dpos) const
{
UT_return_val_if_fail (ppcr,false);
PX_ChangeRecord_Strux * pcr
= new PX_ChangeRecord_Strux(PX_ChangeRecord::PXT_InsertStrux,
dpos, m_indexAP, getXID(), m_struxType);
if (!pcr)
return false;
*ppcr = pcr;
return true;
}
bool pf_Frag_Object::createSpecialChangeRecord(PX_ChangeRecord ** ppcr,
PT_DocPosition dpos,
PT_BlockOffset blockOffset)
{
UT_return_val_if_fail (ppcr,false);
PX_ChangeRecord_Object * pcr
= new PX_ChangeRecord_Object(PX_ChangeRecord::PXT_InsertObject,
dpos, m_indexAP, getXID(), m_objectType,
blockOffset, m_pField,
this);
if (!pcr)
return false;
*ppcr = pcr;
return true;
}
bool pt_PieceTable::_realInsertStrux(PT_DocPosition dpos,
PTStruxType pts,
const gchar ** attributes,
const gchar ** properties,
pf_Frag_Strux ** ppfs_ret)
{
// insert a new structure fragment at the given document position.
// this function can only be called while editing the document.
// Also can specify an indexAP to be used for the frag rather
// than that obtained by default. Very useful for insertting
// Cells where you can immediately specify the cell position in
// a table. this function can only be called while editing the
// document.
UT_return_val_if_fail (m_pts==PTS_Editing, false);
// get the fragment at the doc postion containing the given
// document position.
pf_Frag * pf = NULL;
PT_BlockOffset fragOffset = 0;
bool bFoundFrag = getFragFromPosition(dpos,&pf,&fragOffset);
UT_return_val_if_fail (bFoundFrag, false);
// get the strux containing the given position.
pf_Frag_Strux * pfsContainer = NULL;
bool bFoundContainer = _getStruxFromPosition(dpos,&pfsContainer);
UT_return_val_if_fail (bFoundContainer,false);
//
// Can only insert an endTOC into a TOC
//
if((pfsContainer->getStruxType() == PTX_SectionTOC) && (pts != PTX_EndTOC))
{
bFoundContainer = _getStruxFromPosition(pfsContainer->getPos(),&pfsContainer);
dpos--;
}
if(isEndFootnote(pfsContainer))
{
bFoundContainer = _getStruxFromFragSkip(pfsContainer,&pfsContainer);
}
// if we are inserting something similar to the previous strux,
// we will clone the attributes/properties; we assume that the
// new strux should have the same AP as the one which preceeds us.
// This is generally true for inserting a paragraph -- it should
// inherit the style of the one we just broke.
PT_AttrPropIndex indexAP = 0;
if (pfsContainer->getStruxType() == pts)
{
// TODO paul, add code here to see if this strux has a "followed-by"
// TODO paul, property (or property in the style) and get the a/p
// TODO paul, from there rather than just taking the attr/prop
// TODO paul, of the previous strux.
indexAP = pfsContainer->getIndexAP();
}
//
// Look to see if we're in the middle of a hyperlink span now.
//
pf_Frag * pHype = _findPrevHyperlink(pf);
if(pHype != NULL && (pts != PTX_SectionFrame) // allow annotations in
// hyperlinks
&& (pts != PTX_SectionAnnotation)
&& (pts != PTX_EndAnnotation)) // frames are always placed
// at the end of blocks
// so we don't need this
{
//
// We have an open hyperlink! FIXME later we should allow this by terminating
// the hyperlink span just before this strux, then doing the insert strux.
// Instead for now we'll just disallow this insertStrux.
//
// This assert is to remind use to write the code to terminate
// the hyperlink.
//
pf_Frag * pEndHype = _findNextHyperlink(pf);
PT_DocPosition posEnd = 0;
if(pEndHype)
{
posEnd = pEndHype->getPos();
}
//
// OK now insert a new end of hyperlink at pf
//
insertObject(dpos, PTO_Hyperlink,NULL,NULL);
m_fragments.cleanFrags();
dpos++;
if(posEnd > 0)
{
//
// Now delete the old endhyperlink.
//
pf_Frag * pfEnd = NULL;
UT_uint32 newOff = 0;
posEnd++; // from the insert
UT_uint32 offset = 0;
_deleteObjectWithNotify(posEnd,
static_cast<pf_Frag_Object*>(pEndHype),
offset,1,pfsContainer,&pfEnd,&newOff,true);
}
m_fragments.cleanFrags();
bFoundFrag = getFragFromPosition(dpos,&pf,&fragOffset);
UT_return_val_if_fail (bFoundFrag, false);
}
//
// If desired, merge in the specified attributes/properties. This
// enables cells to inherit the properties of the block from which
// they were inserted.
//
if (attributes || properties)
{
PT_AttrPropIndex pAPIold = indexAP;
bool bMerged = m_varset.mergeAP(PTC_AddFmt,pAPIold,attributes,properties,&indexAP,getDocument());
UT_UNUSED(bMerged);
UT_ASSERT_HARMLESS(bMerged);
}
pf_Frag_Strux * pfsNew = NULL;
if (!_createStrux(pts,indexAP,&pfsNew))
return false;
pfsNew->setXID(getXID());
// when inserting paragraphs, we try to remember the current
// span formatting active at the insertion point and add a
// FmtMark immediately after the block. this way, if the
// user keeps typing text, the FmtMark will control it's
// attr/prop -- if the user warps away and/or edits elsewhere
// and then comes back to this point (the FmtMark may or may
// not still be here) new text will either use the FmtMark or
// look to the right.
bool bNeedGlob = false;
PT_AttrPropIndex apFmtMark = 0;
if (pfsNew->getStruxType() == PTX_Block)
{
bNeedGlob = _computeFmtMarkForNewBlock(pfsNew,pf,fragOffset,&apFmtMark);
if (bNeedGlob)
beginMultiStepGlob();
// if we are leaving an empty block (are stealing all it's content) we should
// put a FmtMark in it to remember the active span fmt at the time.
// this lets things like hitting two consecutive CR's and then comming
// back to the first empty paragraph behave as expected.
// fixme sevior here
if ((pf->getType()==pf_Frag::PFT_Text) && (fragOffset == 0) &&
(pf->getPrev()!=NULL) && (pf->getPrev()->getType()==pf_Frag::PFT_Strux))
{
pf_Frag_Strux *pfsStrux = static_cast<pf_Frag_Strux *>(pf->getPrev());
if(pfsStrux->getStruxType() == PTX_Block)
{
_insertFmtMarkAfterBlockWithNotify(pfsContainer,dpos,apFmtMark);
}
}
}
//
// Look if we're placing an endcell in an empty block. If so,
// insert a format mark
//
if (pfsNew->getStruxType() == PTX_EndCell)
{
if((pf->getPrev()!=NULL) && (pf->getPrev()->getType()==pf_Frag::PFT_Strux))
{
pf_Frag_Strux *pfsStrux = static_cast<pf_Frag_Strux *>(pf->getPrev());
if(pfsStrux->getStruxType() == PTX_Block)
{
_insertFmtMarkAfterBlockWithNotify(pfsContainer,dpos,apFmtMark);
}
}
}
// insert this frag into the fragment list. Update the container strux as needed
_insertStrux(pf,fragOffset,pfsNew);
if (ppfs_ret)
*ppfs_ret = pfsNew;
// create a change record to describe the change, add
// it to the history, and let our listeners know about it.
if(pfsNew->getStruxType() == PTX_SectionFrame)
{
// Inserting a sectionFrame screws up dos. It goes just before the next
// block strux found.
dpos = pfsNew->getPrev()->getPos() + pfsNew->getPrev()->getLength();
}
PX_ChangeRecord_Strux * pcrs
= new PX_ChangeRecord_Strux(PX_ChangeRecord::PXT_InsertStrux,
dpos,indexAP,pfsNew->getXID(), pts);
UT_return_val_if_fail (pcrs,false);
// add record to history. we do not attempt to coalesce these.
m_history.addChangeRecord(pcrs);
m_pDocument->notifyListeners(pfsContainer,pfsNew,pcrs);
if (bNeedGlob)
{
UT_return_val_if_fail (!pfsNew->getNext() || pfsNew->getNext()->getType()!=pf_Frag::PFT_FmtMark, false);
_insertFmtMarkAfterBlockWithNotify(pfsNew,dpos+pfsNew->getLength(),apFmtMark);
endMultiStepGlob();
}
return true;
}