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| 1 | +// Copyright (c) Microsoft Corporation. |
| 2 | +// Licensed under the MIT License. |
| 3 | + |
| 4 | +#include "pch.h" |
| 5 | +#include <cassert> |
| 6 | +#include <stdexcept> |
| 7 | +#include <vector> |
| 8 | + |
| 9 | +#include "CalcManager/ExpressionCommand.h" |
| 10 | +#include "Snapshots.h" |
| 11 | + |
| 12 | +namespace CalculatorApp::ViewModel::Snapshot |
| 13 | +{ |
| 14 | + UnaryCommand::UnaryCommand() |
| 15 | + { |
| 16 | + } |
| 17 | + |
| 18 | + UnaryCommand::UnaryCommand(std::vector<int> cmds) |
| 19 | + : m_cmds(std::move(cmds)) |
| 20 | + { |
| 21 | + } |
| 22 | + |
| 23 | + Windows::Foundation::Collections::IVectorView<int> ^ UnaryCommand::Commands::get() |
| 24 | + { |
| 25 | + return ref new Platform::Collections::VectorView<int>(m_cmds); |
| 26 | + } |
| 27 | + |
| 28 | + void UnaryCommand::Commands::set(Windows::Foundation::Collections::IVectorView<int> ^ commands) |
| 29 | + { |
| 30 | + m_cmds.clear(); |
| 31 | + for (auto cmd : commands) |
| 32 | + { |
| 33 | + m_cmds.push_back(cmd); |
| 34 | + } |
| 35 | + } |
| 36 | + |
| 37 | + BinaryCommand::BinaryCommand() |
| 38 | + { |
| 39 | + Command = 0; |
| 40 | + } |
| 41 | + |
| 42 | + BinaryCommand::BinaryCommand(int cmd) |
| 43 | + { |
| 44 | + Command = cmd; |
| 45 | + } |
| 46 | + |
| 47 | + OperandCommand::OperandCommand() |
| 48 | + { |
| 49 | + IsNegative = false; |
| 50 | + IsDecimalPresent = false; |
| 51 | + IsSciFmt = false; |
| 52 | + } |
| 53 | + |
| 54 | + OperandCommand::OperandCommand(bool isNegative, bool isDecimal, bool isSciFmt, std::vector<int> cmds) |
| 55 | + { |
| 56 | + IsNegative = isNegative; |
| 57 | + IsDecimalPresent = isDecimal; |
| 58 | + IsSciFmt = isSciFmt; |
| 59 | + m_cmds = std::move(cmds); |
| 60 | + } |
| 61 | + |
| 62 | + Windows::Foundation::Collections::IVectorView<int> ^ OperandCommand::Commands::get() |
| 63 | + { |
| 64 | + return ref new Platform::Collections::VectorView<int>(m_cmds); |
| 65 | + } |
| 66 | + |
| 67 | + void OperandCommand::Commands::set(Windows::Foundation::Collections::IVectorView<int> ^ commands) |
| 68 | + { |
| 69 | + m_cmds.clear(); |
| 70 | + for (auto cmd : commands) |
| 71 | + { |
| 72 | + m_cmds.push_back(cmd); |
| 73 | + } |
| 74 | + } |
| 75 | + |
| 76 | + Parentheses::Parentheses() |
| 77 | + { |
| 78 | + Command = 0; |
| 79 | + } |
| 80 | + |
| 81 | + Parentheses::Parentheses(int cmd) |
| 82 | + { |
| 83 | + Command = cmd; |
| 84 | + } |
| 85 | + |
| 86 | + ICalcManagerIExprCommand ^ CreateExprCommand(const IExpressionCommand* exprCmd) { |
| 87 | + switch (exprCmd->GetCommandType()) |
| 88 | + { |
| 89 | + case CalculationManager::CommandType::UnaryCommand: |
| 90 | + { |
| 91 | + auto cmd = static_cast<const IUnaryCommand*>(exprCmd); |
| 92 | + std::vector<int> cmdlist; |
| 93 | + for (auto& subcmd : *cmd->GetCommands()) |
| 94 | + { |
| 95 | + cmdlist.push_back(subcmd); |
| 96 | + } |
| 97 | + return ref new UnaryCommand(std::move(cmdlist)); |
| 98 | + } |
| 99 | + case CalculationManager::CommandType::BinaryCommand: |
| 100 | + { |
| 101 | + auto cmd = static_cast<const IBinaryCommand*>(exprCmd); |
| 102 | + return ref new BinaryCommand(cmd->GetCommand()); |
| 103 | + } |
| 104 | + case CalculationManager::CommandType::OperandCommand: |
| 105 | + { |
| 106 | + auto cmd = static_cast<const IOpndCommand*>(exprCmd); |
| 107 | + std::vector<int> cmdlist; |
| 108 | + for (auto& subcmd : *cmd->GetCommands()) |
| 109 | + { |
| 110 | + cmdlist.push_back(subcmd); |
| 111 | + } |
| 112 | + return ref new OperandCommand(cmd->IsNegative(), cmd->IsDecimalPresent(), cmd->IsSciFmt(), std::move(cmdlist)); |
| 113 | + } |
| 114 | + case CalculationManager::CommandType::Parentheses: |
| 115 | + { |
| 116 | + auto cmd = static_cast<const IParenthesisCommand*>(exprCmd); |
| 117 | + return ref new Parentheses(cmd->GetCommand()); |
| 118 | + } |
| 119 | + default: |
| 120 | + throw std::logic_error{ "unhandled command type." }; |
| 121 | + } |
| 122 | + } |
| 123 | + |
| 124 | + CalcManagerToken::CalcManagerToken() |
| 125 | + { |
| 126 | + OpCodeName = ref new Platform::String(); |
| 127 | + CommandIndex = 0; |
| 128 | + } |
| 129 | + |
| 130 | + CalcManagerToken::CalcManagerToken(Platform::String ^ opCodeName, int cmdIndex) |
| 131 | + { |
| 132 | + assert(opCodeName != nullptr && "opCodeName is mandatory."); |
| 133 | + OpCodeName = opCodeName; |
| 134 | + CommandIndex = cmdIndex; |
| 135 | + } |
| 136 | + |
| 137 | + CalcManagerHistoryItem::CalcManagerHistoryItem() |
| 138 | + { |
| 139 | + Tokens = ref new Platform::Collections::Vector<CalcManagerToken ^>(); |
| 140 | + Commands = ref new Platform::Collections::Vector<ICalcManagerIExprCommand ^>(); |
| 141 | + Expression = ref new Platform::String(); |
| 142 | + Result = ref new Platform::String(); |
| 143 | + } |
| 144 | + |
| 145 | + CalcManagerHistoryItem::CalcManagerHistoryItem(const CalculationManager::HISTORYITEM& item) |
| 146 | + { |
| 147 | + Tokens = ref new Platform::Collections::Vector<CalcManagerToken ^>(); |
| 148 | + assert(item.historyItemVector.spTokens != nullptr && "spTokens shall not be null."); |
| 149 | + for (auto& [opCode, cmdIdx] : *item.historyItemVector.spTokens) |
| 150 | + { |
| 151 | + Tokens->Append(ref new CalcManagerToken(ref new Platform::String(opCode.c_str()), cmdIdx)); |
| 152 | + } |
| 153 | + Commands = ref new Platform::Collections::Vector<ICalcManagerIExprCommand ^>(); |
| 154 | + assert(item.historyItemVector.spCommands != nullptr && "spCommands shall not be null."); |
| 155 | + for (auto& cmd : *item.historyItemVector.spCommands) |
| 156 | + { |
| 157 | + Commands->Append(CreateExprCommand(cmd.get())); |
| 158 | + } |
| 159 | + Expression = ref new Platform::String(item.historyItemVector.expression.c_str()); |
| 160 | + Result = ref new Platform::String(item.historyItemVector.result.c_str()); |
| 161 | + } |
| 162 | + |
| 163 | + CalcManagerSnapshot::CalcManagerSnapshot() |
| 164 | + { |
| 165 | + HistoryItems = nullptr; |
| 166 | + } |
| 167 | + |
| 168 | + CalcManagerSnapshot::CalcManagerSnapshot(const CalculationManager::CalculatorManager& calcMgr) |
| 169 | + { |
| 170 | + auto& items = calcMgr.GetHistoryItems(); |
| 171 | + if (!items.empty()) |
| 172 | + { |
| 173 | + HistoryItems = ref new Platform::Collections::Vector<CalcManagerHistoryItem ^>(); |
| 174 | + for (auto& item : items) |
| 175 | + { |
| 176 | + HistoryItems->Append(ref new CalcManagerHistoryItem(*item)); |
| 177 | + } |
| 178 | + } |
| 179 | + } |
| 180 | + |
| 181 | + PrimaryDisplaySnapshot::PrimaryDisplaySnapshot() |
| 182 | + { |
| 183 | + DisplayValue = ref new Platform::String(); |
| 184 | + IsError = false; |
| 185 | + } |
| 186 | + |
| 187 | + PrimaryDisplaySnapshot::PrimaryDisplaySnapshot(Platform::String ^ display, bool isError) |
| 188 | + { |
| 189 | + assert(display != nullptr && "display is mandatory"); |
| 190 | + DisplayValue = display; |
| 191 | + IsError = isError; |
| 192 | + } |
| 193 | + |
| 194 | + ExpressionDisplaySnapshot::ExpressionDisplaySnapshot() |
| 195 | + { |
| 196 | + Tokens = ref new Platform::Collections::Vector<CalcManagerToken ^>(); |
| 197 | + Commands = ref new Platform::Collections::Vector<ICalcManagerIExprCommand ^>(); |
| 198 | + } |
| 199 | + |
| 200 | + ExpressionDisplaySnapshot::ExpressionDisplaySnapshot( |
| 201 | + const std::vector<CalcHistoryToken>& tokens, |
| 202 | + const std::vector<std::shared_ptr<IExpressionCommand>>& commands) |
| 203 | + { |
| 204 | + Tokens = ref new Platform::Collections::Vector<CalcManagerToken ^>(); |
| 205 | + for (auto& [opCode, cmdIdx] : tokens) |
| 206 | + { |
| 207 | + Tokens->Append(ref new CalcManagerToken(ref new Platform::String(opCode.c_str()), cmdIdx)); |
| 208 | + } |
| 209 | + |
| 210 | + Commands = ref new Platform::Collections::Vector<ICalcManagerIExprCommand ^>(); |
| 211 | + for (auto& cmd : commands) |
| 212 | + { |
| 213 | + Commands->Append(CreateExprCommand(cmd.get())); |
| 214 | + } |
| 215 | + } |
| 216 | + |
| 217 | + StandardCalculatorSnapshot::StandardCalculatorSnapshot() |
| 218 | + { |
| 219 | + CalcManager = ref new CalcManagerSnapshot(); |
| 220 | + PrimaryDisplay = ref new PrimaryDisplaySnapshot(); |
| 221 | + ExpressionDisplay = nullptr; |
| 222 | + DisplayCommands = ref new Platform::Collections::Vector<ICalcManagerIExprCommand ^>(); |
| 223 | + } |
| 224 | + |
| 225 | + std::vector<std::shared_ptr<CalculationManager::HISTORYITEM>> ToUnderlying(Windows::Foundation::Collections::IVector<CalcManagerHistoryItem ^> ^ items) |
| 226 | + { |
| 227 | + std::vector<std::shared_ptr<CalculationManager::HISTORYITEM>> result; |
| 228 | + for (CalcManagerHistoryItem ^ item : items) |
| 229 | + { |
| 230 | + CalculationManager::HISTORYITEMVECTOR nativeItem; |
| 231 | + nativeItem.spTokens = std::make_shared<std::vector<std::pair<std::wstring, int>>>(); |
| 232 | + for (CalcManagerToken ^ token : item->Tokens) |
| 233 | + { |
| 234 | + nativeItem.spTokens->push_back(std::make_pair(token->OpCodeName->Data(), token->CommandIndex)); |
| 235 | + } |
| 236 | + nativeItem.spCommands = std::make_shared<std::vector<std::shared_ptr<IExpressionCommand>>>(ToUnderlying(item->Commands)); |
| 237 | + nativeItem.expression = item->Expression->Data(); |
| 238 | + nativeItem.result = item->Result->Data(); |
| 239 | + auto spItem = std::make_shared<CalculationManager::HISTORYITEM>(CalculationManager::HISTORYITEM{ std::move(nativeItem) }); |
| 240 | + result.push_back(std::move(std::move(spItem))); |
| 241 | + } |
| 242 | + return result; |
| 243 | + } |
| 244 | + |
| 245 | + std::vector<std::shared_ptr<IExpressionCommand>> ToUnderlying(Windows::Foundation::Collections::IVector<ICalcManagerIExprCommand ^> ^ commands) |
| 246 | + { |
| 247 | + std::vector<std::shared_ptr<IExpressionCommand>> result; |
| 248 | + for (ICalcManagerIExprCommand ^ cmdEntry : commands) |
| 249 | + { |
| 250 | + if (auto unary = dynamic_cast<UnaryCommand ^>(cmdEntry); unary != nullptr) |
| 251 | + { |
| 252 | + if (unary->m_cmds.size() == 1) |
| 253 | + { |
| 254 | + result.push_back(std::make_shared<CUnaryCommand>(unary->m_cmds[0])); |
| 255 | + } |
| 256 | + else if (unary->m_cmds.size() == 2) |
| 257 | + { |
| 258 | + result.push_back(std::make_shared<CUnaryCommand>(unary->m_cmds[0], unary->m_cmds[1])); |
| 259 | + } |
| 260 | + else |
| 261 | + { |
| 262 | + throw std::logic_error{ "ill-formed command." }; |
| 263 | + } |
| 264 | + } |
| 265 | + else if (auto binary = dynamic_cast<BinaryCommand ^>(cmdEntry); binary != nullptr) |
| 266 | + { |
| 267 | + result.push_back(std::make_shared<CBinaryCommand>(binary->Command)); |
| 268 | + } |
| 269 | + else if ( auto paren = dynamic_cast<Parentheses ^>(cmdEntry); paren != nullptr) |
| 270 | + { |
| 271 | + result.push_back(std::make_shared<CParentheses>(paren->Command)); |
| 272 | + } |
| 273 | + else if (auto operand = dynamic_cast<OperandCommand ^>(cmdEntry); operand != nullptr) |
| 274 | + { |
| 275 | + auto subcmds = std::make_shared<std::vector<int>>(operand->m_cmds); |
| 276 | + result.push_back(std::make_shared<COpndCommand>(std::move(subcmds), operand->IsNegative, operand->IsDecimalPresent, operand->IsSciFmt)); |
| 277 | + } |
| 278 | + } |
| 279 | + return result; |
| 280 | + } |
| 281 | +} // namespace CalculatorApp::ViewModel |
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