1 /*
2  * LibrePCB - Professional EDA for everyone!
3  * Copyright (C) 2013 LibrePCB Developers, see AUTHORS.md for contributors.
4  * https://librepcb.org/
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #ifndef LIBREPCB_CMDLISTELEMENTREMOVE_H
21 #define LIBREPCB_CMDLISTELEMENTREMOVE_H
22 
23 /*******************************************************************************
24  *  Includes
25  ******************************************************************************/
26 #include "../../undocommand.h"
27 #include "../serializableobjectlist.h"
28 
29 #include <QtCore>
30 
31 /*******************************************************************************
32  *  Namespace / Forward Declarations
33  ******************************************************************************/
34 namespace librepcb {
35 
36 /*******************************************************************************
37  *  Class CmdListElementRemove
38  ******************************************************************************/
39 
40 /**
41  * @brief The CmdListElementRemove class
42  */
43 template <typename T, typename P, typename... OnEditedArgs>
44 class CmdListElementRemove final : public UndoCommand {
45 public:
46   // Constructors / Destructor
47   CmdListElementRemove() = delete;
48   CmdListElementRemove(const CmdListElementRemove& other) = delete;
CmdListElementRemove(SerializableObjectList<T,P,OnEditedArgs...> & list,const T * element)49   CmdListElementRemove(SerializableObjectList<T, P, OnEditedArgs...>& list,
50                        const T* element) noexcept
51     : UndoCommand(tr("Remove %1").arg(P::tagname)),
52       mList(list),
53       mElement(element),
54       mIndex(-1) {}
~CmdListElementRemove()55   ~CmdListElementRemove() noexcept {}
56 
57   // Operator Overloadings
58   CmdListElementRemove& operator=(const CmdListElementRemove& rhs) = delete;
59 
60 private:  // Methods
61   /// @copydoc UndoCommand::performExecute()
performExecute()62   bool performExecute() override {
63     mIndex = mList.indexOf(mElement);
64     Q_ASSERT(mIndex >= 0);
65     performRedo();  // can throw
66     return true;
67   }
68 
69   /// @copydoc UndoCommand::performUndo()
performUndo()70   void performUndo() override { mList.insert(mIndex, mMemorizedElement); }
71 
72   /// @copydoc UndoCommand::performRedo()
performRedo()73   void performRedo() override {
74     mMemorizedElement = mList.take(mIndex);
75     Q_ASSERT(mMemorizedElement.get() == mElement);
76   }
77 
78 private:  // Data
79   SerializableObjectList<T, P, OnEditedArgs...>& mList;
80   const T* mElement;
81   std::shared_ptr<T> mMemorizedElement;
82   int mIndex;
83 };
84 
85 /*******************************************************************************
86  *  End of File
87  ******************************************************************************/
88 
89 }  // namespace librepcb
90 
91 #endif  // LIBREPCB_CMDLISTELEMENTREMOVE_H
92