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f246123b | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | // $Id$ | |
17 | ||
18 | #include "AliMUON2DMapIterator.h" | |
19 | #include "AliMpExMap.h" | |
20 | #include "TMap.h" | |
21 | #include "AliLog.h" | |
22 | #include "AliMpIntPair.h" | |
23 | ||
24 | /// \class AliMUON2DMapIterator | |
25 | /// \brief Implementation of AliMUONVDataIterator for 2Dmaps | |
26 | /// | |
27 | /// A simple implementation of VDataIterator for 2Dmaps. | |
28 | /// | |
29 | /// \author Laurent Aphecetche | |
30 | ||
31 | /// \cond CLASSIMP | |
32 | ClassImp(AliMUON2DMapIterator) | |
33 | /// \endcond | |
34 | ||
35 | //_____________________________________________________________________________ | |
36 | AliMUON2DMapIterator::AliMUON2DMapIterator(AliMpExMap& theMap) | |
37 | : AliMUONVDataIterator(), | |
38 | fIter(theMap.GetIterator()), | |
39 | fIter2(0x0), | |
40 | fCurrentI(-1), | |
41 | fCurrentJ(-1) | |
42 | { | |
43 | // default ctor | |
44 | Reset(); | |
45 | } | |
46 | ||
47 | //_____________________________________________________________________________ | |
48 | AliMUON2DMapIterator::~AliMUON2DMapIterator() | |
49 | { | |
50 | // dtor | |
51 | delete fIter2; | |
52 | } | |
53 | ||
54 | //_____________________________________________________________________________ | |
55 | TObject* | |
56 | AliMUON2DMapIterator::GetValue(TExMapIter& iter, Int_t& theKey) const | |
57 | { | |
58 | // return the value corresponding to theKey in iterator iter | |
59 | theKey = -1; | |
60 | Long_t key, value; | |
61 | Bool_t ok = iter.Next(key,value); | |
62 | if (!ok) return 0x0; | |
63 | theKey = (Int_t)(key & 0xFFFF); | |
64 | return reinterpret_cast<TObject*>(value); | |
65 | } | |
66 | ||
67 | //_____________________________________________________________________________ | |
68 | AliMpExMap* | |
69 | AliMUON2DMapIterator::GetMap(TExMapIter& iter, Int_t& key) | |
70 | { | |
71 | // get the map corresponding to key | |
72 | AliMpExMap* rv(0x0); | |
73 | TObject* o = GetValue(iter,key); | |
74 | if (o) | |
75 | { | |
76 | rv = dynamic_cast<AliMpExMap*>(o); | |
77 | if (!rv) | |
78 | { | |
79 | AliFatal("boom"); | |
80 | } | |
81 | } | |
82 | return rv; | |
83 | } | |
84 | ||
85 | //_____________________________________________________________________________ | |
86 | TObject* | |
87 | AliMUON2DMapIterator::Next() | |
88 | { | |
89 | // logic : | |
90 | // get TObject* from fIter2 | |
91 | // if null, increment fIter2 by getting next on fIter | |
92 | ||
93 | if (!fIter2) return 0x0; | |
94 | ||
95 | TObject* o = GetValue(*fIter2,fCurrentJ); | |
96 | if (!o) | |
97 | { | |
98 | // fIter2 exhausted, try to get the next one | |
99 | AliMpExMap* m = GetMap(fIter,fCurrentI); | |
100 | if (!m) | |
101 | { | |
102 | // nothing left, we are done. | |
103 | return 0x0; | |
104 | } | |
105 | delete fIter2; | |
106 | fIter2 = new TExMapIter(m->GetIterator()); | |
107 | o = GetValue(*fIter2,fCurrentJ); | |
108 | } | |
109 | return new TPair(new AliMpIntPair(fCurrentI,fCurrentJ),o); | |
110 | } | |
111 | ||
112 | //_____________________________________________________________________________ | |
113 | void | |
114 | AliMUON2DMapIterator::Reset() | |
115 | { | |
116 | // rewind the iterator | |
117 | delete fIter2; | |
118 | fIter.Reset(); | |
119 | AliMpExMap* m = GetMap(fIter,fCurrentI); | |
120 | if (m) | |
121 | { | |
122 | fIter2 = new TExMapIter(m->GetIterator()); | |
123 | } | |
124 | } | |
125 | ||
126 | //_____________________________________________________________________________ | |
127 | Bool_t | |
128 | AliMUON2DMapIterator::Remove() | |
129 | { | |
130 | // to be implemented if needed | |
131 | AliInfo("Not supported yet"); | |
132 | return kFALSE; | |
133 | } |