1 | /* ======================================================================== *\
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2 | !
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3 | ! *
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4 | ! * This file is part of MARS, the MAGIC Analysis and Reconstruction
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5 | ! * Software. It is distributed to you in the hope that it can be a useful
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6 | ! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
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7 | ! * It is distributed WITHOUT ANY WARRANTY.
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8 | ! *
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9 | ! * Permission to use, copy, modify and distribute this software and its
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10 | ! * documentation for any purpose is hereby granted without fee,
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11 | ! * provided that the above copyright notice appear in all copies and
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12 | ! * that both that copyright notice and this permission notice appear
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13 | ! * in supporting documentation. It is provided "as is" without express
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14 | ! * or implied warranty.
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15 | ! *
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16 | !
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17 | !
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18 | ! Author(s): Thomas Bretz 04/2002 <mailto:tbretz@uni-sw.gwdg.de>
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19 | !
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20 | ! Copyright: MAGIC Software Development, 2000-2002
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21 | !
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22 | !
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23 | \* ======================================================================== */
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24 |
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25 | /////////////////////////////////////////////////////////////////////////////
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26 | //
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27 | // MDataMember
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28 | //
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29 | // This objects corresponds to the data member of another object.
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30 | // You can either specify the object as a string, eg "MHillas.fWidth"
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31 | // where MHillas is the name of the container in the parameterlist
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32 | // and fWidth is it's data member, or you can specify it by giving
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33 | // the pointer corresponding to the instance of your object and
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34 | // a TMethodCall pointer corresponding to the Member function returning
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35 | // the requested value.
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36 | //
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37 | /////////////////////////////////////////////////////////////////////////////
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38 |
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39 | #include "MDataMember.h"
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40 |
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41 | #include <TMethodCall.h>
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42 |
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43 | #include "MLog.h"
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44 | #include "MLogManip.h"
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45 |
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46 | #include "MParList.h"
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47 |
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48 | ClassImp(MDataMember);
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49 |
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50 | // --------------------------------------------------------------------------
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51 | //
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52 | // obj is a pointer to the instance of your class from which the data
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53 | // should be requested. TMethodCall (s. root dox) is a pointer
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54 | // to a TMethodCall object which should be the getter function for
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55 | // the data you want to get.
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56 | //
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57 | MDataMember::MDataMember(MParContainer *obj, TMethodCall *call)
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58 | {
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59 | fObject = obj;
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60 | fCall = call;
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61 | }
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62 |
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63 | // --------------------------------------------------------------------------
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64 | //
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65 | // obj is a pointer to the instance of your class from which the data
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66 | // should be requested. TMethodCall (s. root dox) is a pointer
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67 | // to a TMethodCall object which should be the getter function for
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68 | // the data you want to get.
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69 | //
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70 | MDataMember::MDataMember(MParContainer *obj, const TString call)
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71 | {
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72 | fObject = obj;
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73 | fCall = obj->GetterMethod(call);
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74 | }
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75 |
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76 | // --------------------------------------------------------------------------
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77 | //
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78 | // returns the value you requested
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79 | //
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80 | Double_t MDataMember::GetValue() const
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81 | {
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82 | if (!fCall)
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83 | {
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84 | *fLog << err << "No TMethodCall for " << fName << " of ";
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85 | *fLog << fObject->GetName() << " available... returning 0." << endl;
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86 | return 0;
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87 | }
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88 |
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89 | switch (fCall->ReturnType())
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90 | {
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91 | case TMethodCall::kLong:
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92 | Long_t l;
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93 | fCall->Execute(fObject, l);
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94 | return (Double_t)l;
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95 |
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96 | case TMethodCall::kDouble:
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97 | Double_t v;
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98 | fCall->Execute(fObject, v);
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99 | return v;
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100 |
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101 | default:
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102 | *fLog << err << "DataMember " << fName << " of ";
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103 | *fLog << fObject->GetName() << " neither int nor float... returning 0." << endl;
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104 | return 0;
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105 | }
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106 | }
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107 |
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108 | // --------------------------------------------------------------------------
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109 | //
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110 | // If a string was given PreProcess try to resolv the object name and
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111 | // tries to get it from the parlist. And also tries to resolve
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112 | // the data member (variable) name you requested and tries to get a
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113 | // corresponding TMethodCall from the root Dictionary.
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114 | // Remark: If your Data Member is called fDataMember the corresponding
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115 | // getter Method in your class must be calles fDataMember
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116 | //
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117 | Bool_t MDataMember::PreProcess(const MParList *plist)
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118 | {
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119 | if (fCall)
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120 | return kTRUE;
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121 |
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122 | TString cname(fName);
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123 | TString mname(fName);
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124 |
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125 | const char *dot = strrchr(cname, '.');
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126 |
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127 | if (dot)
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128 | {
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129 | const int pos = dot-cname;
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130 |
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131 | cname.Remove(pos);
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132 | mname.Remove(0, pos+1);
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133 | }
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134 |
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135 | fObject = (MParContainer*)plist->FindObject(cname);
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136 | if (!fObject)
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137 | {
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138 | *fLog << err << "Object '" << cname << "' not in parameter list... aborting." << endl;
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139 | return kFALSE;
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140 | }
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141 |
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142 | fCall = fObject->GetterMethod(mname);
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143 |
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144 | return fCall ? kTRUE : kFALSE;
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145 | }
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146 |
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147 | // --------------------------------------------------------------------------
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148 | //
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149 | // Returns the ready-to-save flag of the data member container
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150 | //
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151 | Bool_t MDataMember::IsReadyToSave() const
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152 | {
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153 | return IsValid() ? fObject->IsReadyToSave() : kFALSE;
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154 | }
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155 |
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156 | // --------------------------------------------------------------------------
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157 | //
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158 | // Print the name of the data member without an CR.
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159 | //
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160 | void MDataMember::Print(Option_t *opt) const
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161 | {
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162 | *fLog << fName << flush;
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163 | }
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164 |
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