81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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#include "pch.h"
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#include "CalculatorHistory.h"
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using namespace std;
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using namespace CalculationManager;
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CalculatorHistory::CalculatorHistory(CALCULATOR_MODE eMode, size_t maxSize) :
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m_mode(eMode),
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m_maxHistorySize(maxSize)
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{}
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unsigned int CalculatorHistory::AddToHistory(_In_ shared_ptr<CalculatorVector <pair<wstring, int>>> const &tokens, _In_ shared_ptr<CalculatorVector<shared_ptr<IExpressionCommand>>> const &commands, _In_ wstring_view result)
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{
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unsigned int addedIndex;
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wstring generatedExpression;
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shared_ptr<HISTORYITEM> spHistoryItem = make_shared<HISTORYITEM>();
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spHistoryItem->historyItemVector.spTokens = tokens;
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spHistoryItem->historyItemVector.spCommands = commands;
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// to be changed when pszexp is back
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tokens->GetString(&generatedExpression);
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// Prefixing and suffixing the special Unicode markers to ensure that the expression
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// in the history doesn't get broken for RTL languages
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spHistoryItem->historyItemVector.expression = L'\u202d' + generatedExpression + L'\u202c';
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spHistoryItem->historyItemVector.result = wstring(result);
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addedIndex = AddItem(spHistoryItem);
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return addedIndex;
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}
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unsigned int CalculatorHistory::AddItem(_In_ shared_ptr<HISTORYITEM> const &spHistoryItem)
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{
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int lastIndex;
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if (m_historyItems.size() >= m_maxHistorySize)
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{
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m_historyItems.erase(m_historyItems.begin());
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}
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m_historyItems.push_back(spHistoryItem);
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lastIndex = static_cast<unsigned>(m_historyItems.size() - 1);
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return lastIndex;
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}
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bool CalculatorHistory::RemoveItem(_In_ unsigned int uIdx)
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{
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if (uIdx > m_historyItems.size() - 1)
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{
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return false;
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}
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m_historyItems.erase(m_historyItems.begin() + uIdx);
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return true;
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}
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vector<shared_ptr<HISTORYITEM>> const& CalculatorHistory::GetHistory()
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{
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return m_historyItems;
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}
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shared_ptr<HISTORYITEM> const& CalculatorHistory::GetHistoryItem(_In_ unsigned int uIdx)
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{
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assert(uIdx >= 0 && uIdx < m_historyItems.size());
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return m_historyItems.at(uIdx);
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}
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CalculatorHistory::~CalculatorHistory(void)
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{
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ClearHistory();
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}
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void CalculatorHistory::ClearHistory()
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{
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m_historyItems.clear();
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}
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