src/iterators.C

   1 #include <config.h>
   2
   3 #include "iterators.h"
   4
   5 ParIterator & ParIterator::operator++()
   6 {
   7         while (!positions.empty()) {
   8                 ParPosition & p = positions.back();
   9
  10                 // Does the current inset contain more "cells" ?
  11                 if (p.index >= 0) {
  12                         ++p.index;
  13                         Paragraph * par = (*p.it)->getFirstParagraph(p.index);
  14                         if (par) {
  15                                 positions.push_back(ParPosition(par));
  16                                 return *this;
  17                         }
  18                         ++p.it;
  19                 } else
  20                         // The following line is needed because the value of
  21                         // p.it may be invalid if inset was added/removed to
  22                         // the paragraph pointed by the iterator
  23                         p.it = p.par->inset_iterator_begin();
  24
  25                 // Try to find the next inset that contains paragraphs
  26                 for ( ; p.it != p.par->inset_iterator_end(); ++p.it) {
  27                         Paragraph * par = (*p.it)->getFirstParagraph(0);
  28                         if (par) {
  29                                 p.index = 0;
  30                                 positions.push_back(ParPosition(par));
  31                                 return *this;
  32                         }
  33                 }
  34                 // Try to go to the next paragarph
  35                 if (p.par->next()) {
  36                         p = ParPosition(p.par->next());
  37                         return *this;
  38                 }
  39
  40                 positions.pop_back();
  41         }
  42         return *this;
  43 }