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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 | |
3d1463c8 | 20 | //----------------------------------------------------------------------------- |
f246123b | 21 | /// \class AliMUON2DMapIterator |
cb6388d5 | 22 | /// Implementation of TIterator for 2Dmaps |
f246123b | 23 | /// |
24 | /// A simple implementation of VDataIterator for 2Dmaps. | |
25 | /// | |
26 | /// \author Laurent Aphecetche | |
3d1463c8 | 27 | //----------------------------------------------------------------------------- |
f246123b | 28 | |
cb6388d5 | 29 | #include "AliMpExMap.h" |
30 | ||
f246123b | 31 | /// \cond CLASSIMP |
32 | ClassImp(AliMUON2DMapIterator) | |
33 | /// \endcond | |
34 | ||
35 | //_____________________________________________________________________________ | |
cb6388d5 | 36 | AliMUON2DMapIterator::AliMUON2DMapIterator(const AliMpExMap& theMap) |
37 | : TIterator(), | |
f246123b | 38 | fIter(theMap.GetIterator()), |
39 | fIter2(0x0), | |
40 | fCurrentI(-1), | |
41 | fCurrentJ(-1) | |
42 | { | |
c4ee792d | 43 | /// default ctor |
f246123b | 44 | Reset(); |
45 | } | |
46 | ||
cb6388d5 | 47 | //_____________________________________________________________________________ |
48 | AliMUON2DMapIterator::AliMUON2DMapIterator(const AliMUON2DMapIterator& rhs) | |
49 | : TIterator(rhs), | |
50 | fIter(rhs.fIter), | |
51 | fIter2(0x0), | |
52 | fCurrentI(rhs.fCurrentI), | |
53 | fCurrentJ(rhs.fCurrentJ) | |
54 | { | |
55 | /// copy ctor | |
56 | if ( rhs.fIter2 ) fIter2 = new TExMapIter(*rhs.fIter2); | |
57 | ||
58 | } | |
59 | //_____________________________________________________________________________ | |
60 | AliMUON2DMapIterator& | |
61 | AliMUON2DMapIterator::operator=(const AliMUON2DMapIterator& rhs) | |
62 | { | |
63 | /// assignment operator | |
64 | if ( this != &rhs ) | |
65 | { | |
66 | fIter = rhs.fIter; | |
67 | fIter2 = 0x0; | |
68 | if ( rhs.fIter2 ) fIter2 = new TExMapIter(*rhs.fIter2); | |
69 | fCurrentI = rhs.fCurrentI; | |
70 | fCurrentJ = rhs.fCurrentJ; | |
71 | } | |
72 | return *this; | |
73 | } | |
74 | ||
75 | //_____________________________________________________________________________ | |
76 | TIterator& | |
77 | AliMUON2DMapIterator::operator=(const TIterator& rhs) | |
78 | { | |
79 | /// overriden operator= (imposed by Root's definition of TIterator::operator= ?) | |
80 | ||
81 | if ( this != &rhs && rhs.IsA() == AliMUON2DMapIterator::Class() ) | |
82 | { | |
83 | const AliMUON2DMapIterator& rhs1 = static_cast<const AliMUON2DMapIterator&>(rhs); | |
84 | ||
85 | fIter = rhs1.fIter; | |
86 | fIter2 = 0x0; | |
87 | if ( rhs1.fIter2 ) fIter2 = new TExMapIter(*rhs1.fIter2); | |
88 | fCurrentI = rhs1.fCurrentI; | |
89 | fCurrentJ = rhs1.fCurrentJ; | |
90 | } | |
91 | return *this; | |
92 | } | |
93 | ||
f246123b | 94 | //_____________________________________________________________________________ |
95 | AliMUON2DMapIterator::~AliMUON2DMapIterator() | |
96 | { | |
c4ee792d | 97 | /// dtor |
f246123b | 98 | delete fIter2; |
99 | } | |
100 | ||
cb6388d5 | 101 | //_____________________________________________________________________________ |
102 | const TCollection* | |
103 | AliMUON2DMapIterator::GetCollection() const | |
104 | { | |
105 | /// Return 0 as we're not really dealing with a Root TCollection... | |
106 | return 0x0; | |
107 | } | |
108 | ||
f246123b | 109 | //_____________________________________________________________________________ |
110 | TObject* | |
111 | AliMUON2DMapIterator::GetValue(TExMapIter& iter, Int_t& theKey) const | |
112 | { | |
c4ee792d | 113 | /// return the value corresponding to theKey in iterator iter |
f246123b | 114 | theKey = -1; |
115 | Long_t key, value; | |
116 | Bool_t ok = iter.Next(key,value); | |
117 | if (!ok) return 0x0; | |
118 | theKey = (Int_t)(key & 0xFFFF); | |
119 | return reinterpret_cast<TObject*>(value); | |
120 | } | |
121 | ||
122 | //_____________________________________________________________________________ | |
123 | AliMpExMap* | |
cb6388d5 | 124 | AliMUON2DMapIterator::GetMap(TExMapIter& iter, Int_t& key) const |
f246123b | 125 | { |
c4ee792d | 126 | /// get the map corresponding to key |
f246123b | 127 | AliMpExMap* rv(0x0); |
128 | TObject* o = GetValue(iter,key); | |
129 | if (o) | |
130 | { | |
131 | rv = dynamic_cast<AliMpExMap*>(o); | |
f246123b | 132 | } |
133 | return rv; | |
134 | } | |
135 | ||
136 | //_____________________________________________________________________________ | |
137 | TObject* | |
138 | AliMUON2DMapIterator::Next() | |
139 | { | |
c4ee792d | 140 | /// logic : |
141 | /// get TObject* from fIter2 | |
142 | /// if null, increment fIter2 by getting next on fIter | |
f246123b | 143 | |
144 | if (!fIter2) return 0x0; | |
145 | ||
146 | TObject* o = GetValue(*fIter2,fCurrentJ); | |
147 | if (!o) | |
148 | { | |
149 | // fIter2 exhausted, try to get the next one | |
150 | AliMpExMap* m = GetMap(fIter,fCurrentI); | |
151 | if (!m) | |
152 | { | |
153 | // nothing left, we are done. | |
154 | return 0x0; | |
155 | } | |
156 | delete fIter2; | |
157 | fIter2 = new TExMapIter(m->GetIterator()); | |
158 | o = GetValue(*fIter2,fCurrentJ); | |
cb6388d5 | 159 | } |
160 | ||
161 | return o; | |
f246123b | 162 | } |
163 | ||
164 | //_____________________________________________________________________________ | |
165 | void | |
166 | AliMUON2DMapIterator::Reset() | |
167 | { | |
c4ee792d | 168 | /// rewind the iterator |
f246123b | 169 | delete fIter2; |
170 | fIter.Reset(); | |
171 | AliMpExMap* m = GetMap(fIter,fCurrentI); | |
172 | if (m) | |
173 | { | |
174 | fIter2 = new TExMapIter(m->GetIterator()); | |
175 | } | |
176 | } |