2 * \file CursorSlice.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Lars Gullik Bjønnes
7 * \author Matthias Ettrich
11 * Full author contact details are available in file CREDITS.
16 #include "CursorSlice.h"
19 #include "Paragraph.h"
21 #include "support/debug.h"
23 #include "insets/Inset.h"
25 #include "mathed/InsetMath.h"
26 #include "mathed/MathData.h"
28 #include <boost/assert.hpp>
37 CursorSlice::CursorSlice()
38 : inset_(0), idx_(0), pit_(0), pos_(0)
42 CursorSlice::CursorSlice(Inset & p)
43 : inset_(&p), idx_(0), pit_(0), pos_(0)
49 MathData & CursorSlice::cell() const
51 return inset_->asInsetMath()->cell(idx_);
55 Paragraph & CursorSlice::paragraph() const
57 return text()->getPar(pit_);
61 pos_type CursorSlice::lastpos() const
64 return inset_->asInsetMath() ? cell().size() : paragraph().size();
68 pit_type CursorSlice::lastpit() const
70 if (inset().inMathed())
72 return text()->paragraphs().size() - 1;
76 CursorSlice::row_type CursorSlice::row() const
78 BOOST_ASSERT(asInsetMath());
79 return asInsetMath()->row(idx_);
83 CursorSlice::col_type CursorSlice::col() const
85 BOOST_ASSERT(asInsetMath());
86 return asInsetMath()->col(idx_);
90 void CursorSlice::forwardPos()
92 // move on one position if possible
93 if (pos() < lastpos()) {
94 //lyxerr << "... next pos" << endl;
99 // otherwise move on one paragraph if possible
100 if (pit() < lastpit()) {
101 //lyxerr << "... next par" << endl;
107 // otherwise move on one cell
108 //lyxerr << "... next idx" << endl;
110 BOOST_ASSERT(idx() < nargs());
118 void CursorSlice::forwardIdx()
120 BOOST_ASSERT(idx() < nargs());
128 void CursorSlice::backwardPos()
152 bool CursorSlice::at_end() const
154 return idx() == lastidx() && pit() == lastpit() && pos() == lastpos();
158 bool CursorSlice::at_begin() const
160 return idx() == 0 && pit() == 0 && pos() == 0;
164 bool operator==(CursorSlice const & p, CursorSlice const & q)
166 return &p.inset() == &q.inset()
167 && p.idx() == q.idx()
168 && p.pit() == q.pit()
169 && p.pos() == q.pos();
173 bool operator!=(CursorSlice const & p, CursorSlice const & q)
175 return &p.inset() != &q.inset()
176 || p.idx() != q.idx()
177 || p.pit() != q.pit()
178 || p.pos() != q.pos();
182 bool operator<(CursorSlice const & p, CursorSlice const & q)
184 if (&p.inset() != &q.inset()) {
185 LYXERR0("can't compare cursor and anchor in different insets\n"
186 << "p: " << p << '\n' << "q: " << q);
189 if (p.idx() != q.idx())
190 return p.idx() < q.idx();
191 if (p.pit() != q.pit())
192 return p.pit() < q.pit();
193 return p.pos() < q.pos();
197 bool operator>(CursorSlice const & p, CursorSlice const & q)
203 bool operator<=(CursorSlice const & p, CursorSlice const & q)
209 ostream & operator<<(ostream & os, CursorSlice const & item)
212 << "inset: " << (void *)&item.inset()
213 // << " text: " << item.text()
214 << " idx: " << item.idx()
215 << " par: " << item.pit()
216 << " pos: " << item.pos()
217 // << " x: " << item.inset().x()
218 // << " y: " << item.inset().y()