Mercurial > ldforge / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/history.h	Wed Apr 10 00:46:32 2013 +0300
@@ -0,0 +1,66 @@
+/*
+ *  LDForge: LDraw parts authoring CAD
+ *  Copyright (C) 2013 Santeri `arezey` 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 HISTORY_H
+#define HISTORY_H
+
+#include "common.h"
+
+#define IMPLEMENT_HISTORY_TYPE(N) \
+	virtual HistoryType_e getType () const { \
+		return HISTORY_##N; \
+	} \
+
+enum HistoryType_e {
+	HISTORY_Delete,
+};
+
+class HistoryEntry {
+public:
+	virtual void undo () {}
+	virtual void redo () {}
+	virtual ~HistoryEntry () {}
+	
+	virtual HistoryType_e getType () const {
+		return (HistoryType_e)(0);
+	};
+};
+
+class DeleteHistory : public HistoryEntry {
+public:
+	IMPLEMENT_HISTORY_TYPE (Delete)
+	
+	vector<ulong> indices;
+	vector<LDObject*> cache;
+	
+	DeleteHistory (vector<ulong> indices, vector<LDObject*> cache) :
+		indices (indices), cache (cache) {}
+	virtual ~DeleteHistory ();
+	virtual void undo ();
+	virtual void redo ();
+};
+
+namespace History {
+	extern std::vector<HistoryEntry*> entries;
+	
+	void addEntry (HistoryEntry* entry);
+	void undo ();
+	void redo ();
+};
+
+#endif // HISTORY_H
\ No newline at end of file