--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/EditHistory.h Tue Jan 21 02:03:27 2014 +0200
@@ -0,0 +1,184 @@
+/*
+ * LDForge: LDraw parts authoring CAD
+ * Copyright (C) 2013, 2014 Santeri Piippo
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LDFORGE_HISTORY_H
+#define LDFORGE_HISTORY_H
+
+#include "Main.h"
+#include "LDObject.h"
+
+#define IMPLEMENT_HISTORY_TYPE(N) \
+ virtual ~N##History() {} \
+ virtual void undo() const override; \
+ virtual void redo() const override; \
+ \
+ virtual History::EHistoryType getType() const override \
+ { \
+ return History::E##N##History; \
+ } \
+ \
+ virtual QString getTypeName() const \
+ { \
+ return #N; \
+ }
+
+class AbstractHistoryEntry;
+
+// =============================================================================
+class History
+{
+ PROPERTY (private, int, Position, NUM_OPS, STOCK_WRITE)
+ PROPERTY (public, LDDocument*, Document, NO_OPS, STOCK_WRITE)
+ PROPERTY (public, bool, Ignoring, BOOL_OPS, STOCK_WRITE)
+
+ public:
+ typedef QList<AbstractHistoryEntry*> Changeset;
+
+ enum EHistoryType
+ {
+ EDelHistory,
+ EEditHistory,
+ EAddHistory,
+ EMoveHistory,
+ ESwapHistory,
+ };
+
+ History();
+ void undo();
+ void redo();
+ void clear();
+
+ void addStep();
+ void add (AbstractHistoryEntry* entry);
+
+ inline long getSize() const
+ {
+ return m_changesets.size();
+ }
+
+ inline History& operator<< (AbstractHistoryEntry* entry)
+ {
+ add (entry);
+ return *this;
+ }
+
+ inline const Changeset& getChangeset (long pos) const
+ {
+ return m_changesets[pos];
+ }
+
+ private:
+ Changeset m_currentChangeset;
+ QList<Changeset> m_changesets;
+};
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+class AbstractHistoryEntry
+{
+ PROPERTY (public, History*, Parent, NO_OPS, STOCK_WRITE)
+
+ public:
+ virtual ~AbstractHistoryEntry() {}
+ virtual void undo() const = 0;
+ virtual void redo() const = 0;
+ virtual History::EHistoryType getType() const = 0;
+ virtual QString getTypeName() const = 0;
+};
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+class DelHistory : public AbstractHistoryEntry
+{
+ PROPERTY (private, int, Index, NO_OPS, STOCK_WRITE)
+ PROPERTY (private, QString, Code, NO_OPS, STOCK_WRITE)
+
+ public:
+ IMPLEMENT_HISTORY_TYPE (Del)
+ DelHistory (int idx, LDObject* obj);
+};
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+class EditHistory : public AbstractHistoryEntry
+{
+ PROPERTY (private, int, Index, NO_OPS, STOCK_WRITE)
+ PROPERTY (private, QString, OldCode, NO_OPS, STOCK_WRITE)
+ PROPERTY (private, QString, NewCode, NO_OPS, STOCK_WRITE)
+
+ public:
+ IMPLEMENT_HISTORY_TYPE (Edit)
+
+ EditHistory (int idx, QString oldCode, QString newCode) :
+ m_Index (idx),
+ m_OldCode (oldCode),
+ m_NewCode (newCode) {}
+};
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+class AddHistory : public AbstractHistoryEntry
+{
+ PROPERTY (private, int, Index, NO_OPS, STOCK_WRITE)
+ PROPERTY (private, QString, Code, NO_OPS, STOCK_WRITE)
+
+ public:
+ IMPLEMENT_HISTORY_TYPE (Add)
+
+ AddHistory (int idx, LDObject* obj) :
+ m_Index (idx),
+ m_Code (obj->raw()) {}
+};
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+class MoveHistory : public AbstractHistoryEntry
+{
+ public:
+ IMPLEMENT_HISTORY_TYPE (Move)
+
+ QList<int> indices;
+ Vertex dest;
+
+ MoveHistory (QList<int> indices, Vertex dest) :
+ indices (indices),
+ dest (dest) {}
+};
+
+// =============================================================================
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+// =============================================================================
+class SwapHistory : public AbstractHistoryEntry
+{
+ public:
+ IMPLEMENT_HISTORY_TYPE (Swap)
+
+ SwapHistory (int a, int b) :
+ a (a),
+ b (b) {}
+
+ private:
+ int a, b;
+};
+
+#endif // LDFORGE_HISTORY_H