source: src/Actions/Calculation_impl.hpp@ 23359f

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Last change on this file since 23359f was 0b2ce9, checked in by Frederik Heber <heber@…>, 14 years ago

Implemented macros for automatically generating repetitive stuff around Actions.

The idea is that only the following items have to be provided for by the user

  • parameters (i.e. for each the following tupel: type, token and reference)
  • perform...(), ...Undo(), ...

Therefore, we have three new files:

  • Action_impl_header.hpp: Is for the declarations in the header
  • Action_impl_pre.hpp: Is before definition of functions
  • Action_impl_post.hpp: is after definition of functions (cleanup)

Changes:
  • Property mode set to 100644
File size: 1.6 KB
Line 
1/*
2 * Calculation_impl.hpp
3 *
4 * Created on: Feb 19, 2010
5 * Author: crueger
6 */
7
8#ifndef CALCULATION_IMPL_HPP_
9#define CALCULATION_IMPL_HPP_
10
11#include "Actions/Calculation.hpp"
12
13#include <cassert>
14
15template<typename T>
16Calculation<T>::Calculation(int _maxSteps, std::string _name, bool _doRegister) :
17 Process(_maxSteps,_name,_doRegister),
18 result(0),
19 done(false)
20{}
21
22template<typename T>
23Calculation<T>::~Calculation()
24{
25 delete result;
26}
27
28// methods inherited from Action
29
30template<typename T>
31void Calculation<T>::getParametersfromValueStorage()
32{}
33
34template<typename T>
35Action::state_ptr Calculation<T>::performCall(){
36 reset();
37 (*this)();
38 return Action::success;
39}
40
41template<typename T>
42Action::state_ptr Calculation<T>::performUndo(Action::state_ptr){
43 ASSERT(0,"Cannot undo a calculation");
44 return Action::success;
45}
46template<typename T>
47Action::state_ptr Calculation<T>::performRedo(Action::state_ptr){
48 ASSERT(0,"Cannot redo a calculation");
49 return Action::success;
50}
51
52template<typename T>
53bool Calculation<T>::canUndo()
54{
55 return false;
56}
57
58template<typename T>
59bool Calculation<T>::shouldUndo()
60{
61 return false;
62}
63
64// methods for calculation infrastructure
65
66template<typename T>
67T Calculation<T>::operator()(){
68 if(!done){
69 result = doCalc();
70 done = true;
71 }
72 return *result;
73}
74
75template<typename T>
76bool Calculation<T>::hasResult(){
77 return done;
78}
79
80template<typename T>
81T Calculation<T>::getResult(){
82 assert(done && "No result calculated");
83 return *result;
84}
85
86template<typename T>
87void Calculation<T>::reset(){
88 done = false;
89 delete result;
90 result = 0;
91}
92
93#endif /* CALCULATION_IMPL_HPP_ */
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