1 /* 2 * Copyright (C) 2018 Rerrah 3 * 4 * Permission is hereby granted, free of charge, to any person 5 * obtaining a copy of this software and associated documentation 6 * files (the "Software"), to deal in the Software without 7 * restriction, including without limitation the rights to use, 8 * copy, modify, merge, publish, distribute, sublicense, and/or sell 9 * copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following 11 * conditions: 12 * 13 * The above copyright notice and this permission notice shall be 14 * included in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 18 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 20 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 26 #pragma once 27 28 #include <stack> 29 #include <memory> 30 #include "abstract_command.hpp" 31 32 class CommandManager 33 { 34 public: 35 using CommandIPtr = std::unique_ptr<AbstractCommand>; 36 37 CommandManager(); 38 void invoke(CommandIPtr command); 39 void undo(); 40 void redo(); 41 void clear(); 42 43 private: 44 std::stack<CommandIPtr> undoStack_; 45 std::stack<CommandIPtr> redoStack_; 46 }; 47