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cmdlistelementsswap.h
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1 /*
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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.
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18  */
19 
20 #ifndef LIBREPCB_CMDLISTELEMENTSSWAP_H
21 #define LIBREPCB_CMDLISTELEMENTSSWAP_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 CmdListElementsSwap
38  ******************************************************************************/
39 
43 template <typename T, typename P>
44 class CmdListElementsSwap final : public UndoCommand {
45 public:
46  // Constructors / Destructor
47  CmdListElementsSwap() = delete;
48  CmdListElementsSwap(const CmdListElementsSwap& other) = delete;
49  CmdListElementsSwap(SerializableObjectList<T, P>& list, int i, int j) noexcept
50  : UndoCommand(QString(tr("Move %1")).arg(P::tagname)),
51  mList(list),
52  mI(i),
53  mJ(j) {}
54  ~CmdListElementsSwap() noexcept {}
55 
56  // Operator Overloadings
58 
59 private: // Methods
61  bool performExecute() override {
62  performRedo(); // can throw
63  return true;
64  }
65 
67  void performUndo() override { mList.swap(mJ, mI); }
68 
70  void performRedo() override { mList.swap(mI, mJ); }
71 
72 private: // Data
74  int mI;
75  int mJ;
76 };
77 
78 /*******************************************************************************
79  * End of File
80  ******************************************************************************/
81 
82 } // namespace librepcb
83 
84 #endif // LIBREPCB_CMDLISTELEMENTSSWAP_H
bool performExecute() override
Execute the command the first time.
Definition: cmdlistelementsswap.h:61
The SerializableObjectList class implements a list of librepcb::SerializableObject.
Definition: serializableobjectlist.h:92
void performUndo() override
Undo the command.
Definition: cmdlistelementsswap.h:67
The CmdListElementsSwap class.
Definition: cmdlistelementsswap.h:44
CmdListElementsSwap & operator=(const CmdListElementsSwap &rhs)=delete
SerializableObjectList< T, P > & mList
Definition: cmdlistelementsswap.h:73
int mJ
Definition: cmdlistelementsswap.h:75
The UndoCommand class represents a command which you can undo/redo.
Definition: undocommand.h:52
void performRedo() override
Redo the command.
Definition: cmdlistelementsswap.h:70
~CmdListElementsSwap() noexcept
Definition: cmdlistelementsswap.h:54
CmdListElementsSwap(SerializableObjectList< T, P > &list, int i, int j) noexcept
Definition: cmdlistelementsswap.h:49
int mI
Definition: cmdlistelementsswap.h:74