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RooList.cxx
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1/*****************************************************************************
2 * Project: RooFit *
3 * Package: RooFitCore *
4 * @(#)root/roofitcore:$Id$
5 * Authors: *
6 * WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu *
7 * DK, David Kirkby, UC Irvine, dkirkby@uci.edu *
8 * *
9 * Copyright (c) 2000-2005, Regents of the University of California *
10 * and Stanford University. All rights reserved. *
11 * *
12 * Redistribution and use in source and binary forms, *
13 * with or without modification, are permitted according to the terms *
14 * listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
15 *****************************************************************************/
16
17/**
18\file RooList.cxx
19\class RooList
20\ingroup Roofitcore
21
22A RooList is a TList with extra support for working with options
23that are associated with each node. This is a utility class for RooPlot
24**/
25
26#include "RooFit.h"
27
28#include "RooList.h"
29#include "RooList.h"
30#include "RooMsgService.h"
31
32#include "Riostream.h"
33
34using namespace std;
35
37
38
39
40////////////////////////////////////////////////////////////////////////////////
41/// Find the link corresponding to the named object in this list.
42/// Return 0 if the object is not found or does not have an Option_t
43/// string associated with its link. Also print a warning message
44/// if caller is non-zero.
45
46TObjOptLink *RooList::findLink(const char *name, const char *caller) const
47{
48 if(0 == strlen(name)) return 0;
49 TObjLink *link = FirstLink();
50 while (link) {
51 TObject *obj= link->GetObject();
52 if (obj->GetName() && !strcmp(name, obj->GetName())) break;
53 link = link->Next();
54 }
55 if(0 == link) {
56 if(strlen(caller)) {
57 coutE(InputArguments) << caller << ": cannot find object named \"" << name << "\"" << endl;
58 }
59 return 0;
60 }
61 return dynamic_cast<TObjOptLink*>(link);
62}
63
64
65////////////////////////////////////////////////////////////////////////////////
66/// Move the target object immediately before the specified object,
67/// preserving any Option_t associated with the target link.
68
69Bool_t RooList::moveBefore(const char *before, const char *target, const char *caller)
70{
71 // Find the target object's link
72 TObjOptLink *targetLink= findLink(target,caller);
73 if(0 == targetLink) return kFALSE;
74
75 // Find the insert-before object's link
76 TObjOptLink *beforeLink= findLink(before,caller);
77 if(0 == beforeLink) return kFALSE;
78
79 // Remember the target link's object and options
80 TObject *obj= targetLink->GetObject();
81 TString opt= targetLink->GetOption();
82
83 // Remove the target object in its present position
84 Remove(targetLink);
85
86 // Add it back in its new position
87 if(beforeLink == fFirst) {
88 RooList::AddFirst(obj, opt.Data());
89 }
90 else {
91 // coverity[RESOURCE_LEAK]
92 NewOptLink(obj, opt.Data(), beforeLink->Prev());
93 fSize++;
94 Changed();
95 }
96 return kTRUE;
97}
98
99
100////////////////////////////////////////////////////////////////////////////////
101/// Move the target object immediately after the specified object,
102/// preserving any Option_t associated with the target link.
103
104Bool_t RooList::moveAfter(const char *after, const char *target, const char *caller)
105{
106 // Find the target object's link
107 TObjOptLink *targetLink= findLink(target,caller);
108 if(0 == targetLink) return kFALSE;
109
110 // Find the insert-after object's link
111 TObjOptLink *afterLink= findLink(after,caller);
112 if(0 == afterLink) return kFALSE;
113
114 // Remember the target link's object and options
115 TObject *obj= targetLink->GetObject();
116 TString opt= targetLink->GetOption();
117
118 // Remove the target object in its present position
119 Remove(targetLink);
120
121 // Add it back in its new position
122 if(afterLink == fLast) {
123 RooList::AddLast(obj, opt.Data());
124 }
125 else {
126 NewOptLink(obj, opt.Data(), afterLink);
127 fSize++;
128 Changed();
129 }
130 return kTRUE;
131}
#define coutE(a)
Definition: RooMsgService.h:34
const Bool_t kFALSE
Definition: RtypesCore.h:88
bool Bool_t
Definition: RtypesCore.h:59
const Bool_t kTRUE
Definition: RtypesCore.h:87
#define ClassImp(name)
Definition: Rtypes.h:363
A RooList is a TList with extra support for working with options that are associated with each node.
Definition: RooList.h:21
TObjOptLink * findLink(const char *name, const char *caller=0) const
Find the link corresponding to the named object in this list.
Definition: RooList.cxx:46
Bool_t moveAfter(const char *after, const char *target, const char *caller=0)
Move the target object immediately after the specified object, preserving any Option_t associated wit...
Definition: RooList.cxx:104
Bool_t moveBefore(const char *before, const char *target, const char *caller=0)
Move the target object immediately before the specified object, preserving any Option_t associated wi...
Definition: RooList.cxx:69
TObjLinkPtr_t NewOptLink(TObject *obj, Option_t *opt, const TObjLinkPtr_t &prev=nullptr)
Return a new TObjOptLink (a TObjLink that also stores the option).
Definition: TList.cxx:744
virtual TObject * Remove(TObject *obj)
Remove object from the list.
Definition: TList.cxx:818
virtual void AddFirst(TObject *obj)
Add object at the beginning of the list.
Definition: TList.cxx:97
TObjLinkPtr_t fLast
pointer to first entry in linked list
Definition: TList.h:53
virtual TObjLink * FirstLink() const
Definition: TList.h:108
TObjLinkPtr_t fFirst
Definition: TList.h:52
virtual void AddLast(TObject *obj)
Add object at the end of the list.
Definition: TList.cxx:149
Mother of all ROOT objects.
Definition: TObject.h:37
virtual const char * GetName() const
Returns name of object.
Definition: TObject.cxx:357
virtual void Changed()
@ InputArguments
Definition: RooGlobalFunc.h:58
STL namespace.