lyx_mirror/src/texrow.C

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/* This file is part of
* ======================================================
*
* LyX, The Document Processor
*
* Copyright 1995 Matthias Ettrich
* Copyright 1995-2001 The LyX Team.
*
* ====================================================== */
#include <config.h>
#include <algorithm>
#ifdef __GNUG__
#pragma implementation
#endif
#include "texrow.h"
#include "paragraph.h"
#include "debug.h"
using std::find_if;
using std::endl;
// Delete linked list
void TexRow::reset()
{
rowlist.clear();
count = 0;
lastpar = 0;
lastpos = -1;
}
// Defines paragraph and position for the beginning of this row
void TexRow::start(Paragraph * par, int pos)
{
lastpar = par;
lastpos = pos;
}
// Insert node when line is completed
void TexRow::newline()
{
RowItem tmp;
tmp.pos(lastpos);
if (lastpar)
tmp.id(lastpar->id());
else
tmp.id(-1);
tmp.rownumber(++count);
rowlist.push_back(tmp);
}
class same_rownumber {
public:
same_rownumber(TexRow::RowList::value_type const & v):vt(v) {}
bool operator()(TexRow::RowList::value_type const & vt1) const {
return vt.rownumber() == vt1.rownumber();
}
private:
TexRow::RowList::value_type const & vt;
};
bool TexRow::getIdFromRow(int row, int & id, int & pos) const
{
RowList::value_type vt;
vt.rownumber(row);
RowList::const_iterator cit =
find_if(rowlist.begin(), rowlist.end(), same_rownumber(vt));
if (cit != rowlist.end()) {
id = cit->id();
pos = cit->pos();
return true;
}
id = -1;
pos = 0;
return false;
}
// should perhaps have a better name...
// Increase the pos of all rows with the
// same id (and where the pos is larger)
// to avoid putting errorinsets at the
// same pos.
void TexRow::increasePos(int id, int pos) const
{
RowList::iterator kit = rowlist.begin();
RowList::iterator end = rowlist.end();
for (; kit != end; ++kit) {
if (id == kit->id()
&& pos < kit->pos()) {
kit->pos(kit->pos() + 1);
lyxerr[Debug::INFO]
<< "TeXRow::increasePos: ideally this "
"should never happen..." << endl;
}
// When verified to work this clause should be deleted.
if (id == kit->id()
&& pos == kit->pos()) {
lyxerr[Debug::INFO]
<< "TexRow::increasePos: this should happen "
"maximum one time for each run of "
"increasePos!" << endl;
}
}
}
TexRow & TexRow::operator+= (TexRow const & tr)
{
rowlist.insert(rowlist.end(), tr.rowlist.begin(), tr.rowlist.end());
return *this;
}