mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-07 12:32:26 +00:00
1bf7b59d60
* completion support for mathed * experimental completion support for text git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@23104 a592a061-630c-0410-9148-cb99ea01b6c8
594 lines
12 KiB
C++
594 lines
12 KiB
C++
/**
|
|
* \file DocIterator.cpp
|
|
* This file is part of LyX, the document processor.
|
|
* Licence details can be found in the file COPYING.
|
|
*
|
|
* \author André Pönitz
|
|
* \author Alfredo Braunstein
|
|
*
|
|
* Full author contact details are available in file CREDITS.
|
|
*/
|
|
|
|
|
|
#include <config.h>
|
|
|
|
#include "DocIterator.h"
|
|
|
|
#include "InsetList.h"
|
|
#include "Paragraph.h"
|
|
#include "Text.h"
|
|
|
|
#include "mathed/MathData.h"
|
|
#include "mathed/InsetMath.h"
|
|
|
|
#include "insets/InsetTabular.h"
|
|
|
|
#include "support/debug.h"
|
|
|
|
#include <boost/assert.hpp>
|
|
|
|
#include <ostream>
|
|
|
|
using namespace std;
|
|
|
|
namespace lyx {
|
|
|
|
|
|
// We could be able to get rid of this if only every BufferView were
|
|
// associated to a buffer on construction.
|
|
DocIterator::DocIterator()
|
|
: boundary_(false), inset_(0)
|
|
{}
|
|
|
|
|
|
DocIterator::DocIterator(Inset & inset)
|
|
: boundary_(false), inset_(&inset)
|
|
{}
|
|
|
|
|
|
DocIterator doc_iterator_begin(Inset & inset)
|
|
{
|
|
DocIterator dit(inset);
|
|
dit.forwardPos();
|
|
return dit;
|
|
}
|
|
|
|
|
|
DocIterator doc_iterator_end(Inset & inset)
|
|
{
|
|
return DocIterator(inset);
|
|
}
|
|
|
|
|
|
LyXErr & operator<<(LyXErr & os, DocIterator const & it)
|
|
{
|
|
os.stream() << it;
|
|
return os;
|
|
}
|
|
|
|
|
|
Inset * DocIterator::nextInset() const
|
|
{
|
|
BOOST_ASSERT(!empty());
|
|
if (pos() == lastpos())
|
|
return 0;
|
|
if (pos() > lastpos()) {
|
|
LYXERR0("Should not happen, but it does. ");
|
|
return 0;
|
|
}
|
|
if (inMathed())
|
|
return nextAtom().nucleus();
|
|
return paragraph().getInset(pos());
|
|
}
|
|
|
|
|
|
Inset * DocIterator::prevInset() const
|
|
{
|
|
BOOST_ASSERT(!empty());
|
|
if (pos() == 0)
|
|
return 0;
|
|
if (inMathed()) {
|
|
if (cell().empty())
|
|
// FIXME: this should not happen but it does.
|
|
// See bug 3189
|
|
// http://bugzilla.lyx.org/show_bug.cgi?id=3189
|
|
return 0;
|
|
else
|
|
return prevAtom().nucleus();
|
|
}
|
|
return paragraph().getInset(pos() - 1);
|
|
}
|
|
|
|
|
|
Inset * DocIterator::realInset() const
|
|
{
|
|
BOOST_ASSERT(inTexted());
|
|
// if we are in a tabular, we need the cell
|
|
if (inset().lyxCode() == TABULAR_CODE) {
|
|
InsetTabular & tabular = static_cast<InsetTabular&>(inset());
|
|
return tabular.cell(idx()).get();
|
|
}
|
|
return &inset();
|
|
}
|
|
|
|
|
|
MathAtom & DocIterator::prevAtom() const
|
|
{
|
|
BOOST_ASSERT(!empty());
|
|
BOOST_ASSERT(pos() > 0);
|
|
return cell()[pos() - 1];
|
|
}
|
|
|
|
|
|
MathAtom & DocIterator::nextAtom() const
|
|
{
|
|
BOOST_ASSERT(!empty());
|
|
//lyxerr << "lastpos: " << lastpos() << " next atom:\n" << *this << endl;
|
|
BOOST_ASSERT(pos() < lastpos());
|
|
return cell()[pos()];
|
|
}
|
|
|
|
|
|
Text * DocIterator::text() const
|
|
{
|
|
BOOST_ASSERT(!empty());
|
|
return top().text();
|
|
}
|
|
|
|
|
|
Paragraph & DocIterator::paragraph() const
|
|
{
|
|
if (!inTexted())
|
|
LYXERR0(*this);
|
|
BOOST_ASSERT(inTexted());
|
|
return top().paragraph();
|
|
}
|
|
|
|
|
|
Paragraph & DocIterator::innerParagraph() const
|
|
{
|
|
BOOST_ASSERT(!empty());
|
|
return innerTextSlice().paragraph();
|
|
}
|
|
|
|
|
|
CursorSlice const & DocIterator::innerTextSlice() const
|
|
{
|
|
BOOST_ASSERT(!empty());
|
|
// go up until first non-0 text is hit
|
|
// (innermost text is 0 in mathed)
|
|
for (int i = depth() - 1; i >= 0; --i)
|
|
if (slices_[i].text())
|
|
return slices_[i];
|
|
|
|
// This case is in principe not possible. We _must_
|
|
// be inside a Text.
|
|
BOOST_ASSERT(false);
|
|
static CursorSlice dummy;
|
|
return dummy;
|
|
}
|
|
|
|
|
|
pit_type DocIterator::lastpit() const
|
|
{
|
|
return inMathed() ? 0 : text()->paragraphs().size() - 1;
|
|
}
|
|
|
|
|
|
pos_type DocIterator::lastpos() const
|
|
{
|
|
return inMathed() ? cell().size() : paragraph().size();
|
|
}
|
|
|
|
|
|
DocIterator::idx_type DocIterator::lastidx() const
|
|
{
|
|
return top().lastidx();
|
|
}
|
|
|
|
|
|
size_t DocIterator::nargs() const
|
|
{
|
|
// assume 1x1 grid for main text
|
|
return top().nargs();
|
|
}
|
|
|
|
|
|
size_t DocIterator::ncols() const
|
|
{
|
|
// assume 1x1 grid for main text
|
|
return top().ncols();
|
|
}
|
|
|
|
|
|
size_t DocIterator::nrows() const
|
|
{
|
|
// assume 1x1 grid for main text
|
|
return top().nrows();
|
|
}
|
|
|
|
|
|
DocIterator::row_type DocIterator::row() const
|
|
{
|
|
return top().row();
|
|
}
|
|
|
|
|
|
DocIterator::col_type DocIterator::col() const
|
|
{
|
|
return top().col();
|
|
}
|
|
|
|
|
|
MathData & DocIterator::cell() const
|
|
{
|
|
// BOOST_ASSERT(inMathed());
|
|
return top().cell();
|
|
}
|
|
|
|
|
|
Text * DocIterator::innerText() const
|
|
{
|
|
BOOST_ASSERT(!empty());
|
|
// go up until first non-0 text is hit
|
|
// (innermost text is 0 in mathed)
|
|
for (int i = depth() - 1; i >= 0; --i)
|
|
if (slices_[i].text())
|
|
return slices_[i].text();
|
|
return 0;
|
|
}
|
|
|
|
|
|
Inset * DocIterator::innerInsetOfType(int code) const
|
|
{
|
|
for (int i = depth() - 1; i >= 0; --i)
|
|
if (slices_[i].inset_->lyxCode() == code)
|
|
return slices_[i].inset_;
|
|
return 0;
|
|
}
|
|
|
|
|
|
// This duplicates code above, but is in the critical path.
|
|
// So please think twice before adding stuff
|
|
void DocIterator::forwardPos()
|
|
{
|
|
// this dog bites his tail
|
|
if (empty()) {
|
|
push_back(CursorSlice(*inset_));
|
|
return;
|
|
}
|
|
|
|
CursorSlice & tip = top();
|
|
//lyxerr << "XXX\n" << *this << endl;
|
|
|
|
// this is used twice and shows up in the profiler!
|
|
pos_type const lastp = lastpos();
|
|
|
|
// move into an inset to the right if possible
|
|
Inset * n = 0;
|
|
|
|
if (tip.pos() != lastp) {
|
|
// this is impossible for pos() == size()
|
|
if (inMathed())
|
|
n = (tip.cell().begin() + tip.pos())->nucleus();
|
|
else
|
|
n = paragraph().getInset(tip.pos());
|
|
}
|
|
|
|
if (n && n->isActive()) {
|
|
//lyxerr << "... descend" << endl;
|
|
push_back(CursorSlice(*n));
|
|
return;
|
|
}
|
|
|
|
if (!tip.at_end()) {
|
|
tip.forwardPos();
|
|
return;
|
|
}
|
|
// otherwise leave inset and jump over inset as a whole
|
|
pop_back();
|
|
// 'tip' is invalid now...
|
|
if (!empty())
|
|
++top().pos();
|
|
}
|
|
|
|
|
|
void DocIterator::forwardPosIgnoreCollapsed()
|
|
{
|
|
Inset * const nextinset = nextInset();
|
|
// FIXME: the check for asInsetMath() shouldn't be necessary
|
|
// but math insets do not return a sensible editable() state yet.
|
|
if (nextinset && !nextinset->asInsetMath()
|
|
&& nextinset->editable() != Inset::HIGHLY_EDITABLE) {
|
|
++top().pos();
|
|
return;
|
|
}
|
|
forwardPos();
|
|
}
|
|
|
|
|
|
void DocIterator::forwardPar()
|
|
{
|
|
forwardPos();
|
|
|
|
while (!empty() && (!inTexted() || pos() != 0)) {
|
|
if (inTexted()) {
|
|
pos_type const lastp = lastpos();
|
|
Paragraph const & par = paragraph();
|
|
pos_type & pos = top().pos();
|
|
if (par.insetList().empty())
|
|
pos = lastp;
|
|
else
|
|
while (pos < lastp && !par.isInset(pos))
|
|
++pos;
|
|
}
|
|
forwardPos();
|
|
}
|
|
}
|
|
|
|
|
|
void DocIterator::forwardChar()
|
|
{
|
|
forwardPos();
|
|
while (!empty() && pos() == lastpos())
|
|
forwardPos();
|
|
}
|
|
|
|
|
|
void DocIterator::forwardInset()
|
|
{
|
|
forwardPos();
|
|
|
|
while (!empty() && !nextInset()) {
|
|
if (inTexted()) {
|
|
pos_type const lastp = lastpos();
|
|
Paragraph const & par = paragraph();
|
|
pos_type & pos = top().pos();
|
|
while (pos < lastp && !par.isInset(pos))
|
|
++pos;
|
|
if (pos < lastp)
|
|
break;
|
|
}
|
|
forwardPos();
|
|
}
|
|
}
|
|
|
|
|
|
void DocIterator::backwardChar()
|
|
{
|
|
backwardPos();
|
|
while (!empty() && pos() == lastpos())
|
|
backwardPos();
|
|
}
|
|
|
|
|
|
void DocIterator::backwardPos()
|
|
{
|
|
//this dog bites his tail
|
|
if (empty()) {
|
|
push_back(CursorSlice(*inset_));
|
|
top().idx() = lastidx();
|
|
top().pit() = lastpit();
|
|
top().pos() = lastpos();
|
|
return;
|
|
}
|
|
|
|
if (top().at_begin()) {
|
|
pop_back();
|
|
return;
|
|
}
|
|
|
|
top().backwardPos();
|
|
|
|
// move into an inset to the left if possible
|
|
Inset * n = 0;
|
|
|
|
if (inMathed())
|
|
n = (top().cell().begin() + top().pos())->nucleus();
|
|
else
|
|
n = paragraph().getInset(top().pos());
|
|
|
|
if (n && n->isActive()) {
|
|
push_back(CursorSlice(*n));
|
|
top().idx() = lastidx();
|
|
top().pit() = lastpit();
|
|
top().pos() = lastpos();
|
|
}
|
|
}
|
|
|
|
|
|
bool DocIterator::hasPart(DocIterator const & it) const
|
|
{
|
|
// it can't be a part if it is larger
|
|
if (it.depth() > depth())
|
|
return false;
|
|
|
|
// as inset adresses are the 'last' level
|
|
return &it.top().inset() == &slices_[it.depth() - 1].inset();
|
|
}
|
|
|
|
|
|
void DocIterator::updateInsets(Inset * inset)
|
|
{
|
|
// this function re-creates the cache of inset pointers.
|
|
//lyxerr << "converting:\n" << *this << endl;
|
|
DocIterator dit = *this;
|
|
size_t const n = slices_.size();
|
|
slices_.resize(0);
|
|
for (size_t i = 0 ; i < n; ++i) {
|
|
BOOST_ASSERT(inset);
|
|
push_back(dit[i]);
|
|
top().inset_ = inset;
|
|
if (i + 1 != n)
|
|
inset = nextInset();
|
|
}
|
|
//lyxerr << "converted:\n" << *this << endl;
|
|
}
|
|
|
|
|
|
bool DocIterator::fixIfBroken()
|
|
{
|
|
if (empty())
|
|
return false;
|
|
|
|
// Go through the slice stack from the bottom.
|
|
// Check that all coordinates (idx, pit, pos) are correct and
|
|
// that the inset is the one which is claimed to be there
|
|
Inset * inset = &slices_[0].inset();
|
|
size_t i = 0;
|
|
size_t n = slices_.size();
|
|
for (; i != n; ++i) {
|
|
CursorSlice & cs = slices_[i];
|
|
if (&cs.inset() != inset) {
|
|
// the whole slice is wrong, chop off this as well
|
|
--i;
|
|
LYXERR(Debug::DEBUG, "fixIfBroken(): inset changed");
|
|
break;
|
|
} else if (cs.idx() > cs.lastidx()) {
|
|
cs.idx() = cs.lastidx();
|
|
cs.pit() = cs.lastpit();
|
|
cs.pos() = cs.lastpos();
|
|
LYXERR(Debug::DEBUG, "fixIfBroken(): idx fixed");
|
|
break;
|
|
} else if (cs.pit() > cs.lastpit()) {
|
|
cs.pit() = cs.lastpit();
|
|
cs.pos() = cs.lastpos();
|
|
LYXERR(Debug::DEBUG, "fixIfBroken(): pit fixed");
|
|
break;
|
|
} else if (cs.pos() > cs.lastpos()) {
|
|
cs.pos() = cs.lastpos();
|
|
LYXERR(Debug::DEBUG, "fixIfBroken(): pos fixed");
|
|
break;
|
|
} else if (i != n - 1 && cs.pos() != cs.lastpos()) {
|
|
// get inset which is supposed to be in the next slice
|
|
if (cs.inset().inMathed())
|
|
inset = (cs.cell().begin() + cs.pos())->nucleus();
|
|
else if (Inset * csInset = cs.paragraph().getInset(cs.pos()))
|
|
inset = csInset;
|
|
else {
|
|
// there are slices left, so there must be another inset
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Did we make it through the whole slice stack? Otherwise there
|
|
// was a problem at slice i, and we have to chop off above
|
|
if (i < n) {
|
|
LYXERR(Debug::DEBUG, "fixIfBroken(): cursor chopped at " << i);
|
|
resize(i + 1);
|
|
return true;
|
|
} else
|
|
return false;
|
|
}
|
|
|
|
|
|
int DocIterator::find(MathData const & cell) const
|
|
{
|
|
for (size_t l = 0; l != slices_.size(); ++l) {
|
|
if (slices_[l].asInsetMath() && &slices_[l].cell() == &cell)
|
|
return l;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
|
|
int DocIterator::find(InsetMath const * inset) const
|
|
{
|
|
for (size_t l = 0; l != slices_.size(); ++l) {
|
|
if (slices_[l].asInsetMath() == inset)
|
|
return l;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
|
|
void DocIterator::cutOff(int above, vector<CursorSlice> & cut)
|
|
{
|
|
cut = vector<CursorSlice>(slices_.begin() + above + 1, slices_.end());
|
|
slices_.resize(above + 1);
|
|
}
|
|
|
|
|
|
void DocIterator::cutOff(int above)
|
|
{
|
|
slices_.resize(above + 1);
|
|
}
|
|
|
|
|
|
void DocIterator::append(vector<CursorSlice> const & x)
|
|
{
|
|
slices_.insert(slices_.end(), x.begin(), x.end());
|
|
}
|
|
|
|
|
|
void DocIterator::append(DocIterator::idx_type idx, pos_type pos)
|
|
{
|
|
slices_.push_back(CursorSlice());
|
|
top().idx() = idx;
|
|
top().pos() = pos;
|
|
}
|
|
|
|
|
|
ostream & operator<<(ostream & os, DocIterator const & dit)
|
|
{
|
|
for (size_t i = 0, n = dit.depth(); i != n; ++i)
|
|
os << " " << dit[i] << "\n";
|
|
return os;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////
|
|
|
|
StableDocIterator::StableDocIterator(DocIterator const & dit)
|
|
{
|
|
data_ = dit.internalData();
|
|
for (size_t i = 0, n = data_.size(); i != n; ++i)
|
|
data_[i].inset_ = 0;
|
|
}
|
|
|
|
|
|
DocIterator StableDocIterator::asDocIterator(Inset * inset) const
|
|
{
|
|
// this function re-creates the cache of inset pointers
|
|
//lyxerr << "converting:\n" << *this << endl;
|
|
DocIterator dit = DocIterator(*inset);
|
|
for (size_t i = 0, n = data_.size(); i != n; ++i) {
|
|
if (inset == 0) {
|
|
// FIXME
|
|
LYXERR0(" Should not happen, but does e.g. after "
|
|
"C-n C-l C-z S-C-z\n"
|
|
<< " or when a Buffer has been concurrently edited by two views"
|
|
<< '\n' << "dit: " << dit << '\n'
|
|
<< " lastpos: " << dit.lastpos());
|
|
dit.fixIfBroken();
|
|
break;
|
|
}
|
|
dit.push_back(data_[i]);
|
|
dit.top().inset_ = inset;
|
|
if (dit.fixIfBroken())
|
|
break;
|
|
if (i + 1 != n)
|
|
inset = dit.nextInset();
|
|
}
|
|
//lyxerr << "convert:\n" << *this << " to:\n" << dit << endl;
|
|
return dit;
|
|
}
|
|
|
|
|
|
ostream & operator<<(ostream & os, StableDocIterator const & dit)
|
|
{
|
|
for (size_t i = 0, n = dit.data_.size(); i != n; ++i)
|
|
os << " " << dit.data_[i] << "\n";
|
|
return os;
|
|
}
|
|
|
|
|
|
bool operator==(StableDocIterator const & dit1, StableDocIterator const & dit2)
|
|
{
|
|
return dit1.data_ == dit2.data_;
|
|
}
|
|
|
|
|
|
} // namespace lyx
|