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 07/2001 (tbretz@uni-sw.gwdg.de)
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19 | !
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20 | ! Copyright: MAGIC Software Development, 2000-2001
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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 | // MClone //
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28 | // //
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29 | // This task clones a given paramter container. You can either specify //
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30 | // the name of the container which should be cloned or a pointer to the //
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31 | // container. If you specify a name the preprocessing tries to find the //
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32 | // corresponding container in the parameter list. //
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33 | // Cloning in this context means duplicating the object in memory. This //
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34 | // may be used if you change an object in the eventloop (eg. the image //
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35 | // cleaning is changing the image) and you want to compare both 'version' //
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36 | // of this object afterwards. //
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37 | // The cloned object can be accessed by using MClone::GetClone. //
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38 | // To clone the container more than once use several instances of MClone. //
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39 | // The object does only exist until a new object is cloned. It is deleted //
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40 | // in the destructor. //
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41 | // //
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42 | // To use MClone you must make sure, that TObject::Clone is correctly //
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43 | // working for this class (maybe you have to overload it) //
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44 | // //
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45 | // Input Containers: //
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46 | // MParContainer //
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47 | // //
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48 | // Output Containers: //
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49 | // -/- //
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50 | // //
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51 | //////////////////////////////////////////////////////////////////////////////
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52 | #include "MClone.h"
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53 |
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54 | #include "MLog.h"
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55 | #include "MLogManip.h"
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56 |
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57 | #include "MParList.h"
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58 |
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59 | ClassImp(MClone);
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60 |
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61 | // --------------------------------------------------------------------------
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62 | //
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63 | // Initializes name and title of the object. It is called by all
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64 | // constructors.
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65 | //
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66 | void MClone::Init(const char *name, const char *title)
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67 | {
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68 | fName = name ? name : "MClone";
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69 | fTitle = title ? title : "Task to clone a parameter container for later usage";
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70 |
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71 | fClone = NULL;
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72 | fObject = NULL;
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73 | }
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74 |
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75 | // --------------------------------------------------------------------------
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76 | //
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77 | // Constructor. Remembers the name to search for in the parameter list.
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78 | //
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79 | MClone::MClone(const char *obj, const char *name, const char *title)
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80 | {
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81 | Init(name, title);
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82 |
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83 | fObjName = obj;
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84 | }
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85 |
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86 | // --------------------------------------------------------------------------
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87 | //
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88 | // Constructor. Remember the pointer of the object which has to be cloned.
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89 | //
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90 | MClone::MClone(const TObject *obj, const char *name, const char *title)
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91 | {
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92 | Init(name, title);
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93 |
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94 | fObject = obj;
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95 | }
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96 |
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97 | // --------------------------------------------------------------------------
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98 | //
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99 | // Destructor. Deletes the cloned object.
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100 | //
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101 | MClone::~MClone()
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102 | {
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103 | Clear();
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104 | }
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105 |
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106 | // --------------------------------------------------------------------------
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107 | //
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108 | // Checks the parameter list for the existance of the parameter container. If
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109 | // the name of it was given in the constructor.
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110 | //
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111 | Bool_t MClone::PreProcess(MParList *pList)
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112 | {
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113 | //
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114 | // The pointer is already given by the user.
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115 | //
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116 | if (fObject)
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117 | return kTRUE;
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118 |
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119 | //
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120 | // Try to find the parameter container with the given name in the list
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121 | //
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122 | fObject = pList->FindObject(fObjName);
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123 | if (fObject)
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124 | return kTRUE;
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125 |
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126 | //
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127 | // If it couldn't get found stop Eventloop
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128 | //
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129 | *fLog << dbginf << fObjName << " not found... aborting." << endl;
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130 | return kFALSE;
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131 | }
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132 |
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133 | // --------------------------------------------------------------------------
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134 | //
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135 | // Delete the cloned object if one is existing
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136 | //
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137 | void MClone::Clear(Option_t *)
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138 | {
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139 | //
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140 | // Check if an object has been initialized
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141 | //
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142 | if (!fClone)
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143 | return;
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144 |
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145 | //
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146 | // Delete it and set the pointer to NULL for the sanity check (above)
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147 | //
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148 | delete fClone;
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149 | fClone = NULL;
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150 | }
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151 |
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152 | // --------------------------------------------------------------------------
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153 | //
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154 | // Deletes an existing clone and clones the object (parameter container)
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155 | // again.
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156 | //
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157 | Bool_t MClone::Process()
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158 | {
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159 | //
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160 | // Delete an existing clone
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161 | //
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162 | Clear();
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163 |
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164 | //
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165 | // Clone the given parameter container
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166 | //
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167 | fClone = fObject->Clone();
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168 |
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169 | return kTRUE;
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170 | }
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171 |
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