sc/source/core/data/edittextiterator.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <edittextiterator.hxx>
  11 #include <document.hxx>
  12 #include <table.hxx>
  13 #include <column.hxx>
  14
  15 namespace sc {
  16
  17 EditTextIterator::EditTextIterator( const ScDocument& rDoc, SCTAB nTab ) :
  18     mrTable(*rDoc.maTabs.at(nTab)),
  19     mnCol(0),
  20     mpCells(nullptr),
  21     miEnd(maPos.first)
  22 {
  23     init();
  24 }
  25
  26 void EditTextIterator::init()
  27 {
  28     mnCol = 0;
  29     if (mnCol >= mrTable.aCol.size())
  30         mnCol = -1;
  31
  32     if (mnCol != -1)
  33     {
  34         mpCells = &mrTable.aCol[mnCol].maCells;
  35         maPos = mpCells->position(0);
  36         miEnd = mpCells->end();
  37     }
  38 }
  39
  40 const EditTextObject* EditTextIterator::seek()
  41 {
  42     while (maPos.first->type != sc::element_type_edittext)
  43     {
  44         incBlock();
  45         if (maPos.first == miEnd)
  46         {
  47             // Move to the next column.
  48             ++mnCol;
  49             if (mnCol >= mrTable.aCol.size())
  50                 // No more columns.
  51                 return nullptr;
  52
  53             mpCells = &mrTable.aCol[mnCol].maCells;
  54             maPos = mpCells->position(0);
  55             miEnd = mpCells->end();
  56         }
  57     }
  58
  59     // We are on the right block type.
  60     return sc::edittext_block::at(*maPos.first->data, maPos.second);
  61 }
  62
  63 void EditTextIterator::incBlock()
  64 {
  65     ++maPos.first;
  66     maPos.second = 0;
  67 }
  68
  69 const EditTextObject* EditTextIterator::first()
  70 {
  71     init();
  72     if (mnCol == -1)
  73         return nullptr;
  74     return seek();
  75 }
  76
  77 const EditTextObject* EditTextIterator::next()
  78 {
  79     if (mnCol == -1)
  80         return nullptr;
  81
  82     if (maPos.first == miEnd)
  83         return nullptr;
  84
  85     // increment position by one
  86     if (maPos.second + 1 < maPos.first->size)
  87         // Increment within the block.
  88         ++maPos.second;
  89     else
  90         incBlock();
  91
  92     return seek();
  93 }
  94
  95 }
  96
  97 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */