+/**
+ * \file dociterator.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author unknown
+ * \author Lars Gullik Bjønnes
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+
+#include <config.h>
#include "dociterator.h"
using std::endl;
-DocumentIterator::DocumentIterator()
+// We could be able to get rid of this if only every BufferView were
+// associated to a buffer on construction.
+DocIterator::DocIterator()
+ : inset_(0)
+{}
+
+
+DocIterator::DocIterator(InsetBase & inset)
+ : inset_(&inset)
{}
-DocumentIterator::DocumentIterator(InsetBase & inset)
+DocIterator doc_iterator_begin(InsetBase & inset)
{
- push_back(CursorSlice(inset));
+ DocIterator dit(inset);
+ dit.forwardPos();
+ return dit;
}
-InsetBase * DocumentIterator::nextInset()
+DocIterator doc_iterator_end(InsetBase & inset)
+{
+ return DocIterator(inset);
+}
+
+
+InsetBase * DocIterator::nextInset()
{
BOOST_ASSERT(!empty());
if (pos() == lastpos())
return 0;
- if (inMathed())
+ if (inMathed())
return nextAtom().nucleus();
return paragraph().isInset(pos()) ? paragraph().getInset(pos()) : 0;
}
-InsetBase * DocumentIterator::prevInset()
+InsetBase * DocIterator::prevInset()
{
BOOST_ASSERT(!empty());
if (pos() == 0)
return 0;
- if (inMathed())
+ if (inMathed())
return prevAtom().nucleus();
return paragraph().isInset(pos() - 1) ? paragraph().getInset(pos() - 1) : 0;
}
-InsetBase const * DocumentIterator::prevInset() const
+InsetBase const * DocIterator::prevInset() const
{
BOOST_ASSERT(!empty());
if (pos() == 0)
return 0;
- if (inMathed())
+ if (inMathed())
return prevAtom().nucleus();
return paragraph().isInset(pos() - 1) ? paragraph().getInset(pos() - 1) : 0;
}
-MathAtom const & DocumentIterator::prevAtom() const
+MathAtom const & DocIterator::prevAtom() const
{
BOOST_ASSERT(!empty());
BOOST_ASSERT(pos() > 0);
}
-MathAtom & DocumentIterator::prevAtom()
+MathAtom & DocIterator::prevAtom()
{
BOOST_ASSERT(!empty());
BOOST_ASSERT(pos() > 0);
}
-MathAtom const & DocumentIterator::nextAtom() const
+MathAtom const & DocIterator::nextAtom() const
{
BOOST_ASSERT(!empty());
+ //lyxerr << "lastpos: " << lastpos() << " next atom:\n" << *this << endl;
BOOST_ASSERT(pos() < lastpos());
return cell()[pos()];
}
-MathAtom & DocumentIterator::nextAtom()
+MathAtom & DocIterator::nextAtom()
{
BOOST_ASSERT(!empty());
+ //lyxerr << "lastpos: " << lastpos() << " next atom:\n" << *this << endl;
BOOST_ASSERT(pos() < lastpos());
return cell()[pos()];
}
-LyXText * DocumentIterator::text() const
+LyXText * DocIterator::text() const
{
BOOST_ASSERT(!empty());
return top().text();
}
-Paragraph & DocumentIterator::paragraph()
+Paragraph & DocIterator::paragraph()
{
BOOST_ASSERT(inTexted());
return top().paragraph();
}
-Paragraph const & DocumentIterator::paragraph() const
+Paragraph const & DocIterator::paragraph() const
{
BOOST_ASSERT(inTexted());
return top().paragraph();
}
-Row & DocumentIterator::textRow()
+Row & DocIterator::textRow()
{
return *paragraph().getRow(pos());
}
-Row const & DocumentIterator::textRow() const
+Row const & DocIterator::textRow() const
{
return *paragraph().getRow(pos());
}
-DocumentIterator::par_type DocumentIterator::lastpar() const
+DocIterator::par_type DocIterator::lastpar() const
{
return inMathed() ? 0 : text()->paragraphs().size() - 1;
}
-DocumentIterator::pos_type DocumentIterator::lastpos() const
+DocIterator::pos_type DocIterator::lastpos() const
{
return inMathed() ? cell().size() : paragraph().size();
}
-DocumentIterator::row_type DocumentIterator::crow() const
+DocIterator::row_type DocIterator::crow() const
{
return paragraph().row(pos());
}
-DocumentIterator::row_type DocumentIterator::lastcrow() const
+DocIterator::row_type DocIterator::lastcrow() const
{
return paragraph().rows.size();
}
-DocumentIterator::idx_type DocumentIterator::lastidx() const
+DocIterator::idx_type DocIterator::lastidx() const
{
return top().lastidx();
}
-size_t DocumentIterator::nargs() const
+size_t DocIterator::nargs() const
{
// assume 1x1 grid for main text
return top().nargs();
}
-size_t DocumentIterator::ncols() const
+size_t DocIterator::ncols() const
{
// assume 1x1 grid for main text
return top().ncols();
}
-size_t DocumentIterator::nrows() const
+size_t DocIterator::nrows() const
{
// assume 1x1 grid for main text
return top().nrows();
}
-DocumentIterator::row_type DocumentIterator::row() const
+DocIterator::row_type DocIterator::row() const
{
return top().row();
}
-DocumentIterator::col_type DocumentIterator::col() const
+DocIterator::col_type DocIterator::col() const
{
return top().col();
}
-MathArray const & DocumentIterator::cell() const
+MathArray const & DocIterator::cell() const
{
BOOST_ASSERT(inMathed());
return top().cell();
}
-MathArray & DocumentIterator::cell()
+MathArray & DocIterator::cell()
{
BOOST_ASSERT(inMathed());
return top().cell();
}
-bool DocumentIterator::inMathed() const
+bool DocIterator::inMathed() const
{
return !empty() && inset().inMathed();
}
-bool DocumentIterator::inTexted() const
+bool DocIterator::inTexted() const
{
return !empty() && !inset().inMathed();
}
-LyXText * DocumentIterator::innerText() const
+LyXText * DocIterator::innerText() const
{
BOOST_ASSERT(!empty());
// go up until first non-0 text is hit
}
-InsetBase * DocumentIterator::innerInsetOfType(int code) const
+InsetBase * DocIterator::innerInsetOfType(int code) const
{
for (int i = size() - 1; i >= 0; --i)
if (operator[](i).inset_->lyxCode() == code)
}
-void DocumentIterator::forwardPos()
+void DocIterator::forwardPos()
{
+ //this dog bites his tail
+ if (empty()) {
+ push_back(CursorSlice(*inset_));
+ return;
+ }
+
CursorSlice & top = back();
//lyxerr << "XXX\n" << *this << endl;
}
-void DocumentIterator::forwardChar()
+void DocIterator::forwardPar()
+{
+ forwardPos();
+ while (!empty() && (!inTexted() || pos() != 0))
+ forwardPos();
+}
+
+
+void DocIterator::forwardChar()
{
- forwardPos();
+ forwardPos();
while (size() != 0 && pos() == lastpos())
forwardPos();
}
-void DocumentIterator::backwardChar()
+void DocIterator::forwardInset()
{
- lyxerr << "not implemented" << endl;
- BOOST_ASSERT(false);
+ forwardPos();
+ while (size() != 0 && (pos() == lastpos() || nextInset() == 0))
+ forwardPos();
}
-void DocumentIterator::forwardPar()
+void DocIterator::backwardChar()
{
- CursorSlice & top = back();
- lyxerr << "XXX " << *this << endl;
+ backwardPos();
+ while (size() != 0 && pos() == lastpos())
+ backwardPos();
+}
- // move into an inset to the right if possible
- InsetBase * n = 0;
- if (top.pos() != lastpos()) {
- // this is impossible for pos() == size()
- if (inMathed()) {
- n = (top.cell().begin() + top.pos())->nucleus();
- } else {
- if (paragraph().isInset(top.pos()))
- n = paragraph().getInset(top.pos());
- }
- }
- if (n && n->isActive()) {
- lyxerr << "... descend" << endl;
- push_back(CursorSlice(*n));
+void DocIterator::backwardPos()
+{
+ //this dog bites his tail
+ if (empty()) {
+ push_back(CursorSlice(*inset_));
+ back().idx() = lastidx();
+ back().par() = lastpar();
+ back().pos() = lastpos();
return;
}
- // otherwise move on one cell back if possible
- if (top.pos() < lastpos()) {
- lyxerr << "... next pos" << endl;
- ++top.pos();
- return;
- }
+ CursorSlice & top = back();
- // otherwise move on one cell back if possible
- if (top.par() < lastpar()) {
- lyxerr << "... next par" << endl;
- ++top.par();
- top.pos() = 0;
+ if (top.pos() != 0) {
+ --top.pos();
+ } else if (top.par() != 0) {
+ --top.par();
+ top.pos() = lastpos();
+ return;
+ } else if (top.idx() != 0) {
+ --top.idx();
+ top.par() = lastpar();
+ top.pos() = lastpos();
+ return;
+ } else {
+ pop_back();
return;
}
- // otherwise try to move on one cell if possible
- while (top.idx() < top.lastidx()) {
- lyxerr << "... next idx"
- << " was: " << top.idx() << " max: " << top.lastidx() << endl;
- ++top.idx();
- top.par() = 0;
- top.pos() = 0;
- return;
+ // move into an inset to the left if possible
+ InsetBase * n = 0;
+
+ if (inMathed()) {
+ n = (top.cell().begin() + top.pos())->nucleus();
+ } else {
+ if (paragraph().isInset(top.pos()))
+ n = paragraph().getInset(top.pos());
}
- // otherwise leave inset an jump over inset as a whole
- pop_back();
- // 'top' is invalid now...
- if (size())
- ++back().pos();
+ if (n && n->isActive()) {
+ push_back(CursorSlice(*n));
+ back().idx() = lastidx();
+ back().par() = lastpar();
+ back().pos() = lastpos();
+ }
}
-std::ostream & operator<<(std::ostream & os, DocumentIterator const & dit)
+std::ostream & operator<<(std::ostream & os, DocIterator const & dit)
{
for (size_t i = 0, n = dit.size(); i != n; ++i)
os << " " << dit.operator[](i) << "\n";
///////////////////////////////////////////////////////
-StableDocumentIterator::StableDocumentIterator(const DocumentIterator & dit)
+StableDocIterator::StableDocIterator(const DocIterator & dit)
{
data_ = dit;
for (size_t i = 0, n = data_.size(); i != n; ++i)
}
-DocumentIterator
-StableDocumentIterator::asDocumentIterator(InsetBase * inset) const
+DocIterator
+StableDocIterator::asDocIterator(InsetBase * inset) const
{
// this function re-creates the cache of inset pointers
//lyxerr << "converting:\n" << *this << endl;
- DocumentIterator dit;
+ DocIterator dit = DocIterator(*inset);
for (size_t i = 0, n = data_.size(); i != n; ++i) {
dit.push_back(data_[i]);
dit.back().inset_ = inset;
}
-std::ostream & operator<<(std::ostream & os, StableDocumentIterator const & dit)
+std::ostream & operator<<(std::ostream & os, StableDocIterator const & dit)
{
for (size_t i = 0, n = dit.data_.size(); i != n; ++i)
os << " " << dit.data_[i] << "\n";
return os;
}
-
projects / lyx.git / blobdiff