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hugin1/hugin/CommandHistory.h

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00001 // -*- c-basic-offset: 4 -*-
00024 #ifndef _COMMANDHISTORY_H
00025 #define _COMMANDHISTORY_H
00026 
00027 #ifndef _Hgn1_COMMAND_H
00028 class Command;
00029 #endif
00030 
00036 class CommandHistory
00037 {
00038 public:
00039 
00042     CommandHistory();
00043 
00046     virtual ~CommandHistory();
00047 
00053     void clear();
00054 
00066     void addCommand(Command *command, bool execute=true);
00067 
00071     virtual void undo();
00075     virtual void redo();
00076 
00077 private:
00078     // our commands
00079     std::vector<Command*> commands;
00080     size_t nextCmd;
00081 
00082 };
00083 
00084 
00090 class GlobalCmdHist : public CommandHistory
00091 {
00092 public:
00093     static GlobalCmdHist & getInstance();
00094 protected:
00095     GlobalCmdHist();
00096 private:
00097     static GlobalCmdHist * instance;
00098 };
00099 
00100 #endif // _COMMANDHISTORY_H

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