sc/source/core/tool/recursionhelper.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 "recursionhelper.hxx"
  11
  12 void ScRecursionHelper::Init()
  13 {
  14     nRecursionCount    = 0;
  15     bInRecursionReturn = bDoingRecursion = bInIterationReturn = false;
  16     aInsertPos = GetIterationEnd();
  17     ResetIteration();
  18 }
  19
  20 void ScRecursionHelper::ResetIteration()
  21 {
  22     aLastIterationStart = GetIterationEnd();
  23     nIteration = 0;
  24     bConverging = false;
  25 }
  26
  27 ScRecursionHelper::ScRecursionHelper()
  28 {
  29     Init();
  30 }
  31
  32 void ScRecursionHelper::SetInRecursionReturn( bool b )
  33 {
  34     // Do not use IsInRecursionReturn() here, it decouples iteration.
  35     if (b && !bInRecursionReturn)
  36         aInsertPos = aRecursionFormulas.begin();
  37     bInRecursionReturn = b;
  38 }
  39
  40 void ScRecursionHelper::Insert(
  41     ScFormulaCell* p, bool bOldRunning, const ScFormulaResult & rRes )
  42 {
  43     aRecursionFormulas.insert( aInsertPos, ScFormulaRecursionEntry( p,
  44                 bOldRunning, rRes));
  45 }
  46
  47 void ScRecursionHelper::SetInIterationReturn( bool b )
  48 {
  49     // An iteration return is always coupled to a recursion return.
  50     SetInRecursionReturn( b);
  51     bInIterationReturn = b;
  52 }
  53
  54 void ScRecursionHelper::StartIteration()
  55 {
  56     SetInIterationReturn( false);
  57     nIteration = 1;
  58     bConverging = false;
  59     aLastIterationStart = GetIterationStart();
  60 }
  61
  62 void ScRecursionHelper::ResumeIteration()
  63 {
  64     SetInIterationReturn( false);
  65     aLastIterationStart = GetIterationStart();
  66 }
  67
  68 void ScRecursionHelper::IncIteration()
  69 {
  70     ++nIteration;
  71 }
  72
  73 void ScRecursionHelper::EndIteration()
  74 {
  75     aRecursionFormulas.erase( GetIterationStart(), GetIterationEnd());
  76     ResetIteration();
  77 }
  78
  79 ScFormulaRecursionList::iterator ScRecursionHelper::GetIterationStart()
  80 {
  81     return aRecursionFormulas.begin();
  82 }
  83
  84 ScFormulaRecursionList::iterator ScRecursionHelper::GetIterationEnd()
  85 {
  86     return aRecursionFormulas.end();
  87 }
  88
  89 void ScRecursionHelper::Clear()
  90 {
  91     aRecursionFormulas.clear();
  92     while (!aRecursionInIterationStack.empty())
  93         aRecursionInIterationStack.pop();
  94     Init();
  95 }
  96
  97 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */