src/FontIterator.cpp

   1 /**
   2  * \file src/FontIterator.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alfredo Braunstein
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  *
  10  */
  11
  12
  13 #include <config.h>
  14
  15 #include "FontIterator.h"
  16
  17 #include "TextMetrics.h"
  18 #include "Paragraph.h"
  19
  20
  21 namespace lyx {
  22
  23
  24 FontIterator::FontIterator(TextMetrics const & tm,
  25                 Paragraph const & par, pit_type pit, pos_type pos)
  26         : tm_(tm), par_(par), pit_(pit), pos_(pos),
  27           font_(tm.getDisplayFont(pit, pos)),
  28           endspan_(par.fontSpan(pos).last),
  29           bodypos_(par.beginOfBody())
  30 {}
  31
  32
  33 Font const & FontIterator::operator*() const
  34 {
  35         return font_;
  36 }
  37
  38
  39 Font * FontIterator::operator->()
  40 {
  41         return &font_;
  42 }
  43
  44
  45 FontIterator & FontIterator::operator++()
  46 {
  47         ++pos_;
  48         if (pos_ > endspan_ || pos_ == bodypos_) {
  49                 font_ = tm_.getDisplayFont(pit_, pos_);
  50                 endspan_ = par_.fontSpan(pos_).last;
  51         }
  52         return *this;
  53 }
  54
  55
  56 } // namespace lyx