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.top();
   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(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                 Paragraph::inset_iterator end = p.par->inset_iterator_end();
  27                 for (; p.it != end; ++p.it) {
  28                         Paragraph * par = (*p.it)->getFirstParagraph(0);
  29                         if (par) {
  30                                 p.index = 0;
  31                                 positions.push(ParPosition(par));
  32                                 return *this;
  33                         }
  34                 }
  35                 // Try to go to the next paragarph
  36                 if (p.par->next()) {
  37                         p = ParPosition(p.par->next());
  38                         return *this;
  39                 }
  40
  41                 positions.pop();
  42         }
  43         return *this;
  44 }