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comparison: src/EditHistory.h

src/EditHistory.h

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1 /*
2 * LDForge: LDraw parts authoring CAD
3 * Copyright (C) 2013, 2014 Santeri Piippo
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19 #ifndef LDFORGE_HISTORY_H
20 #define LDFORGE_HISTORY_H
21
22 #include "Main.h"
23 #include "LDObject.h"
24
25 #define IMPLEMENT_HISTORY_TYPE(N) \
26 virtual ~N##History() {} \
27 virtual void undo() const override; \
28 virtual void redo() const override; \
29 \
30 virtual History::EHistoryType getType() const override \
31 { \
32 return History::E##N##History; \
33 } \
34 \
35 virtual QString getTypeName() const \
36 { \
37 return #N; \
38 }
39
40 class AbstractHistoryEntry;
41
42 // =============================================================================
43 class History
44 {
45 PROPERTY (private, int, Position, NUM_OPS, STOCK_WRITE)
46 PROPERTY (public, LDDocument*, Document, NO_OPS, STOCK_WRITE)
47 PROPERTY (public, bool, Ignoring, BOOL_OPS, STOCK_WRITE)
48
49 public:
50 typedef QList<AbstractHistoryEntry*> Changeset;
51
52 enum EHistoryType
53 {
54 EDelHistory,
55 EEditHistory,
56 EAddHistory,
57 EMoveHistory,
58 ESwapHistory,
59 };
60
61 History();
62 void undo();
63 void redo();
64 void clear();
65
66 void addStep();
67 void add (AbstractHistoryEntry* entry);
68
69 inline long getSize() const
70 {
71 return m_changesets.size();
72 }
73
74 inline History& operator<< (AbstractHistoryEntry* entry)
75 {
76 add (entry);
77 return *this;
78 }
79
80 inline const Changeset& getChangeset (long pos) const
81 {
82 return m_changesets[pos];
83 }
84
85 private:
86 Changeset m_currentChangeset;
87 QList<Changeset> m_changesets;
88 };
89
90 // =============================================================================
91 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
92 // =============================================================================
93 class AbstractHistoryEntry
94 {
95 PROPERTY (public, History*, Parent, NO_OPS, STOCK_WRITE)
96
97 public:
98 virtual ~AbstractHistoryEntry() {}
99 virtual void undo() const = 0;
100 virtual void redo() const = 0;
101 virtual History::EHistoryType getType() const = 0;
102 virtual QString getTypeName() const = 0;
103 };
104
105 // =============================================================================
106 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
107 // =============================================================================
108 class DelHistory : public AbstractHistoryEntry
109 {
110 PROPERTY (private, int, Index, NO_OPS, STOCK_WRITE)
111 PROPERTY (private, QString, Code, NO_OPS, STOCK_WRITE)
112
113 public:
114 IMPLEMENT_HISTORY_TYPE (Del)
115 DelHistory (int idx, LDObject* obj);
116 };
117
118 // =============================================================================
119 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
120 // =============================================================================
121 class EditHistory : public AbstractHistoryEntry
122 {
123 PROPERTY (private, int, Index, NO_OPS, STOCK_WRITE)
124 PROPERTY (private, QString, OldCode, NO_OPS, STOCK_WRITE)
125 PROPERTY (private, QString, NewCode, NO_OPS, STOCK_WRITE)
126
127 public:
128 IMPLEMENT_HISTORY_TYPE (Edit)
129
130 EditHistory (int idx, QString oldCode, QString newCode) :
131 m_Index (idx),
132 m_OldCode (oldCode),
133 m_NewCode (newCode) {}
134 };
135
136 // =============================================================================
137 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
138 // =============================================================================
139 class AddHistory : public AbstractHistoryEntry
140 {
141 PROPERTY (private, int, Index, NO_OPS, STOCK_WRITE)
142 PROPERTY (private, QString, Code, NO_OPS, STOCK_WRITE)
143
144 public:
145 IMPLEMENT_HISTORY_TYPE (Add)
146
147 AddHistory (int idx, LDObject* obj) :
148 m_Index (idx),
149 m_Code (obj->raw()) {}
150 };
151
152 // =============================================================================
153 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
154 // =============================================================================
155 class MoveHistory : public AbstractHistoryEntry
156 {
157 public:
158 IMPLEMENT_HISTORY_TYPE (Move)
159
160 QList<int> indices;
161 Vertex dest;
162
163 MoveHistory (QList<int> indices, Vertex dest) :
164 indices (indices),
165 dest (dest) {}
166 };
167
168 // =============================================================================
169 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
170 // =============================================================================
171 class SwapHistory : public AbstractHistoryEntry
172 {
173 public:
174 IMPLEMENT_HISTORY_TYPE (Swap)
175
176 SwapHistory (int a, int b) :
177 a (a),
178 b (b) {}
179
180 private:
181 int a, b;
182 };
183
184 #endif // LDFORGE_HISTORY_H

Mercurial Repository: ldforge

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