src/CursorSlice.cpp

   1 /**
   2  * \file CursorSlice.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author Matthias Ettrich
   8  * \author André Pönitz
   9  * \author Jürgen Vigna
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "CursorSlice.h"
  17
  18 #include "debug.h"
  19 #include "Text.h"
  20 #include "Paragraph.h"
  21
  22 #include "insets/Inset.h"
  23
  24 #include "mathed/InsetMath.h"
  25 #include "mathed/MathData.h"
  26
  27 #include <boost/assert.hpp>
  28
  29 using std::endl;
  30
  31
  32 namespace lyx {
  33
  34
  35 CursorSlice::CursorSlice()
  36         : inset_(0), idx_(0), pit_(0), pos_(0)
  37 {}
  38
  39
  40 CursorSlice::CursorSlice(Inset & p)
  41         : inset_(&p), idx_(0), pit_(0), pos_(0)
  42 {
  43         BOOST_ASSERT(inset_);
  44 }
  45
  46
  47 MathData & CursorSlice::cell() const
  48 {
  49         return inset_->asInsetMath()->cell(idx_);
  50 }
  51
  52
  53 Paragraph & CursorSlice::paragraph()
  54 {
  55         return text()->getPar(pit_);
  56 }
  57
  58
  59 Paragraph const & CursorSlice::paragraph() const
  60 {
  61         return text()->getPar(pit_);
  62 }
  63
  64
  65 pos_type CursorSlice::lastpos() const
  66 {
  67         BOOST_ASSERT(inset_);
  68         return inset_->asInsetMath() ? cell().size() : paragraph().size();
  69 }
  70
  71
  72 pit_type CursorSlice::lastpit() const
  73 {
  74         if (inset().inMathed())
  75                 return 0;
  76         return text()->paragraphs().size() - 1;
  77 }
  78
  79
  80 CursorSlice::row_type CursorSlice::row() const
  81 {
  82         BOOST_ASSERT(asInsetMath());
  83         return asInsetMath()->row(idx_);
  84 }
  85
  86
  87 CursorSlice::col_type CursorSlice::col() const
  88 {
  89         BOOST_ASSERT(asInsetMath());
  90         return asInsetMath()->col(idx_);
  91 }
  92
  93
  94 bool operator==(CursorSlice const & p, CursorSlice const & q)
  95 {
  96         return &p.inset() == &q.inset()
  97                && p.idx() == q.idx()
  98                && p.pit() == q.pit()
  99                && p.pos() == q.pos();
 100 }
 101
 102
 103 bool operator!=(CursorSlice const & p, CursorSlice const & q)
 104 {
 105         return &p.inset() != &q.inset()
 106                || p.idx() != q.idx()
 107                || p.pit() != q.pit()
 108                || p.pos() != q.pos();
 109 }
 110
 111
 112 bool operator<(CursorSlice const & p, CursorSlice const & q)
 113 {
 114         if (&p.inset() != &q.inset()) {
 115                 lyxerr << "can't compare cursor and anchor in different insets\n"
 116                        << "p: " << p << '\n' << "q: " << q << endl;
 117                 BOOST_ASSERT(false);
 118         }
 119         if (p.idx() != q.idx())
 120                 return p.idx() < q.idx();
 121         if (p.pit() != q.pit())
 122                 return p.pit() < q.pit();
 123         return p.pos() < q.pos();
 124 }
 125
 126
 127 bool operator>(CursorSlice const & p, CursorSlice const & q)
 128 {
 129         return q < p;
 130 }
 131
 132
 133 bool operator<=(CursorSlice const & p, CursorSlice const & q)
 134 {
 135         return !(q < p);
 136 }
 137
 138
 139 std::ostream & operator<<(std::ostream & os, CursorSlice const & item)
 140 {
 141         return os
 142            << "inset: " << &item.inset()
 143 //         << " text: " << item.text()
 144            << " idx: " << item.idx()
 145            << " par: " << item.pit()
 146            << " pos: " << item.pos()
 147 //         << " x: " << item.inset().x()
 148 //         << " y: " << item.inset().y()
 149 ;
 150 }
 151
 152
 153 } // namespace lyx