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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 | // $MpId: AliMpMotifTypePadIterator.cxx,v 1.6 2006/05/24 13:58:41 ivana Exp $ | |
18 | // Category: motif | |
19 | ||
20 | //----------------------------------------------------------------------------- | |
21 | // Class AliMpMotifTypePadIterator | |
22 | // ------------------------------- | |
23 | // Class, which defines an iterator over the pads of a given motif type | |
24 | // Included in AliRoot: 2003/05/02 | |
25 | // Authors: David Guez, Ivana Hrivnacova; IPN Orsay | |
26 | //----------------------------------------------------------------------------- | |
27 | ||
28 | #include "AliMpMotifTypePadIterator.h" | |
29 | #include "AliMpMotifType.h" | |
30 | #include "AliMpEncodePair.h" | |
31 | ||
32 | /// \cond CLASSIMP | |
33 | ClassImp(AliMpMotifTypePadIterator) | |
34 | /// \endcond | |
35 | ||
36 | //______________________________________________________________________________ | |
37 | AliMpMotifTypePadIterator::AliMpMotifTypePadIterator(): | |
38 | AliMpVPadIterator(), | |
39 | fkMotifType(0), | |
40 | fCurrentIx(-1), | |
41 | fCurrentIy(-1) | |
42 | { | |
43 | /// Default constructor, set the current position to "invalid" | |
44 | } | |
45 | ||
46 | //______________________________________________________________________________ | |
47 | AliMpMotifTypePadIterator::AliMpMotifTypePadIterator( | |
48 | const AliMpMotifType* motifType) | |
49 | : AliMpVPadIterator(), | |
50 | fkMotifType(motifType), | |
51 | fCurrentIx(-1), | |
52 | fCurrentIy(-1) | |
53 | { | |
54 | /// Standard constructor, let *this to invalid position | |
55 | } | |
56 | ||
57 | //______________________________________________________________________________ | |
58 | AliMpMotifTypePadIterator::AliMpMotifTypePadIterator( | |
59 | const AliMpMotifTypePadIterator& right) | |
60 | : AliMpVPadIterator(right), | |
61 | fkMotifType(right.fkMotifType), | |
62 | fCurrentIx(right.fCurrentIx), | |
63 | fCurrentIy(right.fCurrentIy) | |
64 | ||
65 | { | |
66 | /// Copy constructor | |
67 | } | |
68 | ||
69 | //______________________________________________________________________________ | |
70 | AliMpMotifTypePadIterator::~AliMpMotifTypePadIterator() | |
71 | { | |
72 | /// Destructor | |
73 | } | |
74 | ||
75 | // operators | |
76 | ||
77 | //______________________________________________________________________________ | |
78 | AliMpMotifTypePadIterator& | |
79 | AliMpMotifTypePadIterator::operator = (const AliMpMotifTypePadIterator& right) | |
80 | { | |
81 | /// Assignment operator. \n | |
82 | /// If the right hand iterator isn't of good type | |
83 | /// the current operator is invalidated | |
84 | ||
85 | // check assignment to self | |
86 | if (this == &right) return *this; | |
87 | ||
88 | // base class assignment | |
89 | AliMpVPadIterator::operator=(right); | |
90 | ||
91 | fkMotifType = right.fkMotifType; | |
92 | fCurrentIx = right.fCurrentIx; | |
93 | fCurrentIy = right.fCurrentIy; | |
94 | ||
95 | return *this; | |
96 | } | |
97 | ||
98 | // | |
99 | //private methods | |
100 | // | |
101 | ||
102 | //______________________________________________________________________________ | |
103 | Bool_t | |
104 | AliMpMotifTypePadIterator::FindFirstPadInLine(Int_t ix, Int_t iy, | |
105 | Int_t& newIx, Int_t& newIy) const | |
106 | { | |
107 | /// Find the indices of the first pad in the same line | |
108 | /// as the \a indices, and in column, at least equal, to the | |
109 | /// one of \a indices | |
110 | ||
111 | if ( ! fkMotifType ) { | |
112 | newIx = -1; | |
113 | newIy = -1; | |
114 | return false; | |
115 | } | |
116 | ||
117 | while ( ix < fkMotifType->GetNofPadsX() ) { | |
118 | if ( fkMotifType->HasPadByLocalIndices(ix, iy) ) { | |
119 | newIx = ix; | |
120 | newIy = iy; | |
121 | return true; | |
122 | } | |
123 | ix++; | |
124 | } | |
125 | ||
126 | newIx = -1; | |
127 | newIy = -1; | |
128 | return false; | |
129 | } | |
130 | ||
131 | //______________________________________________________________________________ | |
132 | Bool_t AliMpMotifTypePadIterator::IsValid() const | |
133 | { | |
134 | /// Is the iterator in a valid position? | |
135 | ||
136 | return fkMotifType!=0 && fCurrentIx >=0 && fCurrentIy >=0; | |
137 | } | |
138 | ||
139 | // | |
140 | //public methods | |
141 | // | |
142 | ||
143 | //______________________________________________________________________________ | |
144 | void AliMpMotifTypePadIterator::First() | |
145 | { | |
146 | /// Reset the iterator, so that it points to the first available | |
147 | /// pad in the motif type | |
148 | ||
149 | if ( ! fkMotifType ) { | |
150 | Invalidate(); | |
151 | return ; | |
152 | } | |
153 | ||
154 | fCurrentIx = 0; | |
155 | fCurrentIy = 0; | |
156 | if ( fkMotifType->HasPadByLocalIndices(fCurrentIx, fCurrentIy) ) return; | |
157 | ||
158 | ||
159 | // if (0,0) is not available | |
160 | // place itself to the first avalable motif after (0,0) (if exists) | |
161 | // ++(*this); | |
162 | Next(); | |
163 | ||
164 | return; | |
165 | } | |
166 | ||
167 | //______________________________________________________________________________ | |
168 | void AliMpMotifTypePadIterator::Next() | |
169 | { | |
170 | /// Move the iterator to the next valid pad. | |
171 | ||
172 | if ( ! IsValid() ) return; | |
173 | ||
174 | while ( fCurrentIy < fkMotifType->GetNofPadsY() ) { | |
175 | Int_t nextTryIx, nextTryIy; | |
176 | Bool_t result | |
177 | = FindFirstPadInLine(fCurrentIx+1, fCurrentIy, nextTryIx, nextTryIy); | |
178 | ||
179 | if ( result ){ | |
180 | fCurrentIx = nextTryIx; | |
181 | fCurrentIy = nextTryIy; | |
182 | return; | |
183 | } | |
184 | fCurrentIx = -1; | |
185 | fCurrentIy++; | |
186 | } | |
187 | ||
188 | // if the loop is finished, there's not available pads at all... | |
189 | Invalidate(); | |
190 | return; | |
191 | } | |
192 | ||
193 | //______________________________________________________________________________ | |
194 | Bool_t AliMpMotifTypePadIterator::IsDone() const | |
195 | { | |
196 | /// Is the iterator in the end ? | |
197 | ||
198 | return ! IsValid(); | |
199 | } | |
200 | ||
201 | //______________________________________________________________________________ | |
202 | AliMpPad AliMpMotifTypePadIterator::CurrentItem() const | |
203 | { | |
204 | /// Return current pad. | |
205 | ||
206 | if ( ! fkMotifType ) | |
207 | return AliMpPad::Invalid(); | |
208 | else | |
209 | return AliMpPad(0, 0, | |
210 | fCurrentIx, fCurrentIy, | |
211 | 0., 0.,0., 0.); | |
212 | } | |
213 | ||
214 | //______________________________________________________________________________ | |
215 | void AliMpMotifTypePadIterator::Invalidate() | |
216 | { | |
217 | /// Let the iterator point to the invalid position | |
218 | ||
219 | fCurrentIx = -1; | |
220 | fCurrentIy = -1; | |
221 | } | |
222 |