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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" | |
f246123b | 19 | |
20 | /// \class AliMUON2DMapIterator | |
cb6388d5 | 21 | /// Implementation of TIterator for 2Dmaps |
f246123b | 22 | /// |
23 | /// A simple implementation of VDataIterator for 2Dmaps. | |
24 | /// | |
25 | /// \author Laurent Aphecetche | |
26 | ||
cb6388d5 | 27 | #include "AliMpExMap.h" |
28 | ||
f246123b | 29 | /// \cond CLASSIMP |
30 | ClassImp(AliMUON2DMapIterator) | |
31 | /// \endcond | |
32 | ||
33 | //_____________________________________________________________________________ | |
cb6388d5 | 34 | AliMUON2DMapIterator::AliMUON2DMapIterator(const AliMpExMap& theMap) |
35 | : TIterator(), | |
f246123b | 36 | fIter(theMap.GetIterator()), |
37 | fIter2(0x0), | |
38 | fCurrentI(-1), | |
39 | fCurrentJ(-1) | |
40 | { | |
c4ee792d | 41 | /// default ctor |
f246123b | 42 | Reset(); |
43 | } | |
44 | ||
cb6388d5 | 45 | //_____________________________________________________________________________ |
46 | AliMUON2DMapIterator::AliMUON2DMapIterator(const AliMUON2DMapIterator& rhs) | |
47 | : TIterator(rhs), | |
48 | fIter(rhs.fIter), | |
49 | fIter2(0x0), | |
50 | fCurrentI(rhs.fCurrentI), | |
51 | fCurrentJ(rhs.fCurrentJ) | |
52 | { | |
53 | /// copy ctor | |
54 | if ( rhs.fIter2 ) fIter2 = new TExMapIter(*rhs.fIter2); | |
55 | ||
56 | } | |
57 | //_____________________________________________________________________________ | |
58 | AliMUON2DMapIterator& | |
59 | AliMUON2DMapIterator::operator=(const AliMUON2DMapIterator& rhs) | |
60 | { | |
61 | /// assignment operator | |
62 | if ( this != &rhs ) | |
63 | { | |
64 | fIter = rhs.fIter; | |
65 | fIter2 = 0x0; | |
66 | if ( rhs.fIter2 ) fIter2 = new TExMapIter(*rhs.fIter2); | |
67 | fCurrentI = rhs.fCurrentI; | |
68 | fCurrentJ = rhs.fCurrentJ; | |
69 | } | |
70 | return *this; | |
71 | } | |
72 | ||
73 | //_____________________________________________________________________________ | |
74 | TIterator& | |
75 | AliMUON2DMapIterator::operator=(const TIterator& rhs) | |
76 | { | |
77 | /// overriden operator= (imposed by Root's definition of TIterator::operator= ?) | |
78 | ||
79 | if ( this != &rhs && rhs.IsA() == AliMUON2DMapIterator::Class() ) | |
80 | { | |
81 | const AliMUON2DMapIterator& rhs1 = static_cast<const AliMUON2DMapIterator&>(rhs); | |
82 | ||
83 | fIter = rhs1.fIter; | |
84 | fIter2 = 0x0; | |
85 | if ( rhs1.fIter2 ) fIter2 = new TExMapIter(*rhs1.fIter2); | |
86 | fCurrentI = rhs1.fCurrentI; | |
87 | fCurrentJ = rhs1.fCurrentJ; | |
88 | } | |
89 | return *this; | |
90 | } | |
91 | ||
f246123b | 92 | //_____________________________________________________________________________ |
93 | AliMUON2DMapIterator::~AliMUON2DMapIterator() | |
94 | { | |
c4ee792d | 95 | /// dtor |
f246123b | 96 | delete fIter2; |
97 | } | |
98 | ||
cb6388d5 | 99 | //_____________________________________________________________________________ |
100 | const TCollection* | |
101 | AliMUON2DMapIterator::GetCollection() const | |
102 | { | |
103 | /// Return 0 as we're not really dealing with a Root TCollection... | |
104 | return 0x0; | |
105 | } | |
106 | ||
f246123b | 107 | //_____________________________________________________________________________ |
108 | TObject* | |
109 | AliMUON2DMapIterator::GetValue(TExMapIter& iter, Int_t& theKey) const | |
110 | { | |
c4ee792d | 111 | /// return the value corresponding to theKey in iterator iter |
f246123b | 112 | theKey = -1; |
113 | Long_t key, value; | |
114 | Bool_t ok = iter.Next(key,value); | |
115 | if (!ok) return 0x0; | |
116 | theKey = (Int_t)(key & 0xFFFF); | |
117 | return reinterpret_cast<TObject*>(value); | |
118 | } | |
119 | ||
120 | //_____________________________________________________________________________ | |
121 | AliMpExMap* | |
cb6388d5 | 122 | AliMUON2DMapIterator::GetMap(TExMapIter& iter, Int_t& key) const |
f246123b | 123 | { |
c4ee792d | 124 | /// get the map corresponding to key |
f246123b | 125 | AliMpExMap* rv(0x0); |
126 | TObject* o = GetValue(iter,key); | |
127 | if (o) | |
128 | { | |
129 | rv = dynamic_cast<AliMpExMap*>(o); | |
f246123b | 130 | } |
131 | return rv; | |
132 | } | |
133 | ||
134 | //_____________________________________________________________________________ | |
135 | TObject* | |
136 | AliMUON2DMapIterator::Next() | |
137 | { | |
c4ee792d | 138 | /// logic : |
139 | /// get TObject* from fIter2 | |
140 | /// if null, increment fIter2 by getting next on fIter | |
f246123b | 141 | |
142 | if (!fIter2) return 0x0; | |
143 | ||
144 | TObject* o = GetValue(*fIter2,fCurrentJ); | |
145 | if (!o) | |
146 | { | |
147 | // fIter2 exhausted, try to get the next one | |
148 | AliMpExMap* m = GetMap(fIter,fCurrentI); | |
149 | if (!m) | |
150 | { | |
151 | // nothing left, we are done. | |
152 | return 0x0; | |
153 | } | |
154 | delete fIter2; | |
155 | fIter2 = new TExMapIter(m->GetIterator()); | |
156 | o = GetValue(*fIter2,fCurrentJ); | |
cb6388d5 | 157 | } |
158 | ||
159 | return o; | |
f246123b | 160 | } |
161 | ||
162 | //_____________________________________________________________________________ | |
163 | void | |
164 | AliMUON2DMapIterator::Reset() | |
165 | { | |
c4ee792d | 166 | /// rewind the iterator |
f246123b | 167 | delete fIter2; |
168 | fIter.Reset(); | |
169 | AliMpExMap* m = GetMap(fIter,fCurrentI); | |
170 | if (m) | |
171 | { | |
172 | fIter2 = new TExMapIter(m->GetIterator()); | |
173 | } | |
174 | } |