[bcf653] | 1 | /*
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| 2 | * Project: MoleCuilder
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| 3 | * Description: creates and alters molecular systems
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[0aa122] | 4 | * Copyright (C) 2010-2012 University of Bonn. All rights reserved.
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[94d5ac6] | 5 | *
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| 6 | *
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| 7 | * This file is part of MoleCuilder.
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| 8 | *
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| 9 | * MoleCuilder is free software: you can redistribute it and/or modify
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| 10 | * it under the terms of the GNU General Public License as published by
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| 11 | * the Free Software Foundation, either version 2 of the License, or
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| 12 | * (at your option) any later version.
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| 13 | *
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| 14 | * MoleCuilder is distributed in the hope that it will be useful,
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 17 | * GNU General Public License for more details.
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| 18 | *
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| 19 | * You should have received a copy of the GNU General Public License
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| 20 | * along with MoleCuilder. If not, see <http://www.gnu.org/licenses/>.
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[bcf653] | 21 | */
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| 22 |
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[d56640] | 23 | /*
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| 24 | * ActionHistory.cpp
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| 25 | *
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| 26 | * Created on: Mar 25, 2010
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| 27 | * Author: crueger
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| 28 | */
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| 29 |
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[bf3817] | 30 | // include config.h
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| 31 | #ifdef HAVE_CONFIG_H
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| 32 | #include <config.h>
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| 33 | #endif
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| 34 |
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[ad011c] | 35 | #include "CodePatterns/MemDebug.hpp"
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[112b09] | 36 |
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[e4afb4] | 37 | #include "Actions/ActionHistory.hpp"
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[d56640] | 38 |
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[e69c87] | 39 | #include "Actions/ActionExceptions.hpp"
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| 40 |
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[d56640] | 41 | #include <iostream>
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| 42 |
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[ad011c] | 43 | #include "CodePatterns/Singleton_impl.hpp"
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| 44 | #include "CodePatterns/Assert.hpp"
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[d56640] | 45 |
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[ce7fdc] | 46 | using namespace MoleCuilder;
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| 47 |
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[dfef3f] | 48 |
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[d56640] | 49 | ActionHistory::ActionHistory()
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[dfef3f] | 50 | {
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| 51 | Action::createStaticStateEntities();
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| 52 | }
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[d56640] | 53 |
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| 54 | ActionHistory::~ActionHistory()
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[dfef3f] | 55 | {
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| 56 | Action::removeStaticStateEntities();
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| 57 | }
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[d56640] | 58 |
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| 59 | void ActionHistory::undoLast(){
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[b7b752] | 60 | if (!hasUndo()){
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| 61 | LOG(1, "Undo performed when the undo-queue was empty.");
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| 62 | return;
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| 63 | }
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| 64 | //ASSERT(history.size(),"Undo performed when the undo-queue was empty");
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[d56640] | 65 | HistoryElement elem = history.back();
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| 66 | history.pop_back();
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| 67 | Action::state_ptr newState = elem.action->undo(elem.state);
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[e69c87] | 68 | if (newState == Action::failure)
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| 69 | throw ActionFailureException() << ActionNameString(elem.action->getName());
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[d56640] | 70 | yrotsih.push_back(HistoryElement(elem.action,newState));
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| 71 | }
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| 72 | void ActionHistory::redoLast(){
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[b7b752] | 73 | if (!hasRedo()){
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| 74 | LOG(1, "Redo performed when the redo-queue was empty.");
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| 75 | return;
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| 76 | }
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| 77 | //ASSERT(yrotsih.size(),"Redo performed when the redo-queue was empty");
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[d56640] | 78 | HistoryElement elem = yrotsih.back();
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| 79 | yrotsih.pop_back();
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| 80 | Action::state_ptr oldState = elem.action->redo(elem.state);
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[e69c87] | 81 | if (oldState == Action::failure)
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| 82 | throw ActionFailureException() << ActionNameString(elem.action->getName());
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[d56640] | 83 | history.push_back(HistoryElement(elem.action,oldState));
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| 84 | }
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| 85 |
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[f9352d] | 86 | bool ActionHistory::hasUndo(){
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| 87 | return history.size()>0;
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| 88 | }
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| 89 |
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| 90 | bool ActionHistory::hasRedo(){
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| 91 | return yrotsih.size()>0;
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| 92 | }
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| 93 |
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[d56640] | 94 | void ActionHistory::addElement(Action* action,Action::state_ptr state){
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| 95 | yrotsih.clear();
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| 96 | history.push_back(HistoryElement(action,state));
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| 97 | }
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| 98 |
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| 99 | void ActionHistory::clear(){
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| 100 | history.clear();
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| 101 | yrotsih.clear();
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| 102 | }
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| 103 |
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| 104 | void ActionHistory::init(){
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| 105 | ActionHistory *hist = new ActionHistory();
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| 106 | setInstance(hist);
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| 107 | }
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| 108 |
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| 109 | CONSTRUCT_SINGLETON(ActionHistory)
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| 110 |
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| 111 | /****************** Contained actions *******************/
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[446bc1] | 112 |
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