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Last change
on this file since 53f5e6 was 32df34, checked in by Tillmann Crueger <crueger@…>, 16 years ago |
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Added an action that allows grouping and grouped execution of several actions.
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Property mode
set to
100644
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File size:
570 bytes
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| 1 | /*
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| 2 | * Action.h
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| 3 | *
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| 4 | * Created on: Dec 8, 2009
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| 5 | * Author: crueger
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| 6 | */
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| 7 |
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| 8 | #ifndef ACTION_H_
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| 9 | #define ACTION_H_
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| 10 |
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| 11 | /**
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| 12 | * Base class for all actions.
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| 13 | *
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| 14 | * Actions describe something that has to be done.
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| 15 | * Actions can be passed around, stored, performed and undone (Command-Pattern).
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| 16 | *
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| 17 | * TODO: Add queues of actions that have been performed to allow easy implementation of multiple-step undo
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| 18 | */
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| 19 | class Action
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| 20 | {
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| 21 | protected:
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| 22 | public:
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| 23 | Action();
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| 24 | virtual ~Action();
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| 25 |
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| 26 | virtual void call()=0;
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| 27 | virtual void undo()=0;
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| 28 | virtual bool canUndo()=0;
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| 29 |
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| 30 | };
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| 31 |
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| 32 | #endif /* ACTION_H_ */
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