1 | // |
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2 | // C++ Implementation: user_info.cpp |
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3 | // |
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4 | // Description: UI (user info) class for loading/saving objects from/to configuration files. |
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5 | // |
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6 | // |
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7 | // Author: smidl <smidl@utia.cas.cz>, (C) 2009 |
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8 | // |
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9 | // Copyright: See COPYING file that comes with this distribution |
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10 | // |
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11 | // |
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12 | |
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13 | #include "user_info.h" |
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14 | |
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15 | namespace bdm { |
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16 | ///////////////////////////// Class UIFile ///////////////////////////////////////////// |
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17 | |
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18 | UIFile::UIFile() { |
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19 | } |
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20 | |
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21 | UIFile::UIFile ( const string &file_name ) { |
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22 | try { |
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23 | readFile ( file_name.c_str() ); |
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24 | // this flag has to be set AFTER each file load, that is why it is right here |
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25 | setAutoConvert ( true ); |
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26 | } catch ( FileIOException f ) { |
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27 | it_error ( "UI error: file " + file_name + " not found." ); |
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28 | } catch ( ParseException& P ) { |
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29 | stringstream msg; |
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30 | msg << "UI error: parsing error """ << P.getError() << """ in file " << file_name << " on line " << P.getLine() << "."; |
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31 | it_error ( msg.str() ); |
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32 | } |
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33 | } |
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34 | |
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35 | |
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36 | void UIFile::save ( const string &file_name ) { |
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37 | try { |
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38 | writeFile ( file_name.c_str() ); |
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39 | } catch ( FileIOException f ) { |
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40 | it_error ( "UI error: file " + file_name + " is inacessible." ); |
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41 | } |
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42 | } |
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43 | |
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44 | UIFile::operator Setting&() { |
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45 | return getRoot(); |
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46 | } |
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47 | |
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48 | ///////////////////////////// Class UI::MappedUI ///////////////////////////////////////////// |
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49 | |
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50 | UI::MappedUI::StringToUIMap& UI::MappedUI::mapped_strings() { |
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51 | // this way it is ensured that there is only one instance of StringTpUIMap, and |
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52 | // what is more, this declaration leaves its allocation/deallocation on the compiler |
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53 | static StringToUIMap var; |
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54 | return var; |
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55 | } |
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56 | |
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57 | UI::MappedUI::TypeInfoToStringMap& UI::MappedUI::mapped_type_infos() { |
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58 | // this way it is ensured that there is only one instance of TypeInfoToStringMap, and |
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59 | // what is more, this declaration leaves its allocation/deallocation on the compiler |
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60 | static TypeInfoToStringMap var; |
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61 | return var; |
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62 | } |
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63 | |
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64 | void UI::MappedUI::add_class ( const string &class_name, const type_info * const class_type_info, const UI* const ui ) { |
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65 | pair< StringToUIMap::iterator, bool> inres = |
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66 | mapped_strings().insert ( |
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67 | StringToUIMap::value_type( class_name, ui ) ); |
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68 | if ( inres.second ) { |
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69 | mapped_type_infos().insert ( |
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70 | TypeInfoToStringMap::value_type ( |
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71 | class_type_info, class_name ) ); |
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72 | } |
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73 | } |
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74 | |
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75 | void UI::MappedUI::unregistered_class_error ( const string &unregistered_class_name ) { |
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76 | stringstream msg; |
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77 | msg << "UI error: class " + unregistered_class_name + " was not properly registered. Use the macro ""UIREGISTER([class name]);"" within your code." << endl; |
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78 | |
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79 | if ( mapped_strings().size() ) { |
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80 | StringToUIMap::const_iterator iter = mapped_strings().begin(); |
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81 | msg << "These classes are already registered: " << iter->first; |
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82 | for ( iter++; iter != mapped_strings().end(); iter++ ) |
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83 | msg << ", " << iter->first; |
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84 | msg << "." << endl; |
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85 | } else |
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86 | msg << "There is not any registered class yet!" << endl; |
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87 | |
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88 | it_error ( msg.str() ); |
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89 | } |
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90 | |
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91 | const UI& UI::MappedUI::retrieve_ui ( const string &class_name ) { |
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92 | StringToUIMap::const_iterator iter = mapped_strings().find ( class_name ); |
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93 | if ( iter == mapped_strings().end() ) |
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94 | unregistered_class_error ( class_name ); |
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95 | |
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96 | return *iter->second; |
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97 | } |
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98 | |
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99 | const string& UI::MappedUI::retrieve_class_name ( const type_info * const class_type_info ) { |
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100 | TypeInfoToStringMap::const_iterator iter = mapped_type_infos().find ( class_type_info ); |
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101 | if ( iter == mapped_type_infos().end() ) |
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102 | unregistered_class_error ( "with RTTI name " + string ( class_type_info->name() ) ); |
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103 | return iter->second; |
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104 | } |
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105 | |
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106 | ///////////////////////////// Class SettingResolver ///////////////////////////////////////////// |
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107 | |
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108 | SettingResolver::SettingResolver ( const Setting &potential_link ) |
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109 | : result ( initialize_reference ( file, potential_link ) ) { |
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110 | } |
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111 | |
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112 | const Setting& SettingResolver::initialize_reference ( UIFile *&file, const Setting &potential_link ) { |
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113 | file = NULL; |
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114 | |
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115 | if ( potential_link.getType() != Setting::TypeString ) |
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116 | return potential_link; |
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117 | |
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118 | string link = ( const char* ) potential_link; |
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119 | size_t aerobase = link.find ( '@' ); |
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120 | |
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121 | const Setting *result; |
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122 | if ( aerobase != string::npos ) { |
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123 | string file_name = link.substr ( aerobase + 1, link.length() ); |
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124 | file = new UIFile ( file_name ); |
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125 | result = & ( Setting& ) ( *file ); |
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126 | link = link.substr ( 0, aerobase ); |
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127 | } else { |
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128 | result = &potential_link; |
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129 | while ( !result->isRoot() ) |
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130 | result = &result->getParent(); |
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131 | } |
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132 | |
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133 | if ( !result->exists ( link ) ) |
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134 | throw UIException ( "linked setting was not found", potential_link ); |
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135 | |
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136 | return ( *result ) [link]; |
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137 | } |
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138 | |
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139 | SettingResolver::~SettingResolver() { |
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140 | if ( file ) delete file; |
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141 | } |
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142 | |
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143 | ///////////////////////////// Class UI ///////////////////////////////////////////// |
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144 | |
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145 | void UI::assert_type ( const Setting &element, Setting::Type type ) { |
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146 | if ( element.getType() != type ) |
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147 | throw UIException ( "wrong setting type", element ); |
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148 | } |
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149 | |
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150 | const Setting& UI::to_child_setting ( const Setting &element, const int index ) { |
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151 | if ( !element.isList() ) |
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152 | throw UIException ( "only TypeList elements could be indexed by integers", element ); |
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153 | |
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154 | return element[index]; |
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155 | } |
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156 | |
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157 | const Setting& UI::to_child_setting ( const Setting &element, const string &name ) { |
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158 | if ( !element.isGroup() ) |
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159 | throw UIException ( "only TypeGroup elements could be indexed by strings", element ); |
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160 | |
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161 | return element[name]; |
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162 | } |
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163 | |
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164 | void UI::save ( const int &integer, Setting &element, const string &name ) { |
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165 | Setting &set = ( name == "" ) ? element.add ( Setting::TypeInt ) |
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166 | : element.add ( name, Setting::TypeInt ); |
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167 | set = integer; |
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168 | } |
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169 | |
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170 | void UI::save ( const double &real, Setting &element, const string &name ) { |
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171 | Setting &set = ( name == "" ) ? element.add ( Setting::TypeFloat ) |
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172 | : element.add ( name, Setting::TypeFloat ); |
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173 | set = real; |
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174 | } |
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175 | |
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176 | void UI::save ( const string &str, Setting &element, const string &name ) { |
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177 | Setting &set = ( name == "" ) ? element.add ( Setting::TypeString ) |
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178 | : element.add ( name, Setting::TypeString ); |
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179 | set = str; |
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180 | } |
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181 | |
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182 | void UI::save ( const mat &matrix, Setting &element, const string &name ) { |
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183 | Setting &set = ( name == "" ) ? element.add ( Setting::TypeList ) |
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184 | : element.add ( name, Setting::TypeList ); |
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185 | |
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186 | Setting &cols = set.add ( Setting::TypeInt ); |
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187 | cols = matrix.cols(); |
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188 | |
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189 | Setting &rows = set.add ( Setting::TypeInt ); |
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190 | rows = matrix.rows(); |
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191 | |
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192 | Setting &elements = set.add ( Setting::TypeArray ); |
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193 | |
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194 | // build matrix row-wise |
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195 | for ( int i = 0; i < matrix.rows(); i++ ) |
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196 | for ( int j = 0; j < matrix.cols(); j++ ) { |
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197 | Setting &new_field = elements.add ( Setting::TypeFloat ); |
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198 | new_field = matrix ( i, j ); |
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199 | } |
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200 | } |
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201 | |
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202 | void UI::save ( const ivec &vector, Setting &element, const string &name ) { |
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203 | Setting &set = ( name == "" ) ? element.add ( Setting::TypeArray ) |
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204 | : element.add ( name, Setting::TypeArray ); |
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205 | for ( int i = 0; i < vector.length(); i++ ) { |
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206 | Setting &new_field = set.add ( Setting::TypeInt ); |
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207 | new_field = vector ( i ); |
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208 | } |
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209 | } |
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210 | |
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211 | void UI::save ( const vec &vector, Setting &element, const string &name ) { |
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212 | Setting &set = ( name == "" ) ? element.add ( Setting::TypeArray ) |
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213 | : element.add ( name, Setting::TypeArray ); |
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214 | for ( int i = 0; i < vector.length(); i++ ) { |
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215 | Setting &new_field = set.add ( Setting::TypeFloat ); |
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216 | new_field = vector ( i ); |
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217 | } |
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218 | } |
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219 | |
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220 | void UI::from_setting ( mat& matrix, const Setting &element ) { |
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221 | const SettingResolver link ( element ); |
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222 | |
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223 | if ( link.result.isNumber() ) { |
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224 | matrix.set_size ( 1, 1 ); |
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225 | matrix ( 0, 0 ) = link.result; |
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226 | return; |
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227 | } |
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228 | |
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229 | if ( link.result.isList() ) { |
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230 | int data_offset; |
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231 | |
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232 | if ( link.result.getLength() == 3 ) |
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233 | data_offset = 0; |
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234 | else if ( link.result.getLength() == 4 ) { |
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235 | assert_type ( link.result[0], Setting::TypeString ); |
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236 | const char* elem1 = ( const char* ) link.result[0]; |
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237 | if ( ( strcmp ( elem1, "matrix" ) ) ) |
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238 | throw UIException ( "the setting supposed to represent a matrix element has wrong syntax", link.result ); |
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239 | |
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240 | data_offset = 1; |
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241 | } else |
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242 | throw UIException ( "the setting supposed to represent a matrix element has wrong syntax", link.result ); |
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243 | |
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244 | Setting &rows_setting = link.result[0 + data_offset]; |
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245 | Setting &cols_setting = link.result[1 + data_offset]; |
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246 | Setting &elements = link.result[2 + data_offset]; |
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247 | |
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248 | assert_type ( cols_setting, Setting::TypeInt ); |
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249 | assert_type ( rows_setting, Setting::TypeInt ); |
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250 | assert_type ( elements, Setting::TypeArray ); |
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251 | |
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252 | int cols = cols_setting; |
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253 | int rows = rows_setting; |
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254 | |
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255 | if ( cols < 0 || rows < 0 ) |
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256 | throw UIException ( "the dimensions of a matrix has to be non-negative", link.result ); |
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257 | |
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258 | if ( elements.getLength() != cols * rows ) |
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259 | throw UIException ( "the count of the matrix elements is incompatible with matrix dimension", elements ); |
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260 | |
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261 | matrix.set_size ( rows, cols ); |
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262 | |
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263 | if ( cols == 0 || rows == 0 ) |
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264 | return; |
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265 | |
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266 | if ( !elements[0].isNumber() ) |
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267 | throw UIException ( "matrix elements have to be numbers", elements[0] ); |
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268 | |
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269 | // build matrix row-wise |
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270 | int k = 0; |
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271 | for ( int i = 0; i < rows; i++ ) |
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272 | for ( int j = 0; j < cols; j++ ) |
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273 | matrix ( i, j ) = elements[k++]; |
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274 | return; |
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275 | } |
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276 | |
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277 | throw UIException ( "only numeric types or TypeList are supported as matrix values", link.result ); |
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278 | } |
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279 | |
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280 | void UI::from_setting ( vec &vector, const Setting &element ) { |
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281 | const SettingResolver link ( element ); |
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282 | |
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283 | if ( link.result.isNumber() ) { |
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284 | vector.set_length ( 1 ); |
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285 | vector ( 0 ) = link.result; |
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286 | return; |
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287 | } |
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288 | |
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289 | if ( link.result.isList() ) { |
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290 | mat matrix; |
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291 | from_setting ( matrix, link.result ); |
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292 | |
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293 | if ( matrix.cols() != 1 && matrix.rows() != 1 ) |
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294 | throw UIException ( "the vector length is invalid, it seems to be rather a matrix", link.result ); |
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295 | |
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296 | int len = matrix.rows() * matrix.cols(); |
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297 | vector.set_length ( len ); |
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298 | if ( len == 0 ) return; |
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299 | |
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300 | if ( matrix.cols() == 1 ) |
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301 | for ( int i = 0; i < len; i++ ) |
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302 | vector ( i ) = matrix ( i, 0 ); |
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303 | else |
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304 | for ( int i = 0; i < len; i++ ) |
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305 | vector ( i ) = matrix ( 0, i ); |
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306 | return; |
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307 | } |
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308 | |
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309 | if ( link.result.isArray() ) { |
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310 | int len = link.result.getLength(); |
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311 | vector.set_length ( len ); |
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312 | if ( len == 0 ) return; |
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313 | |
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314 | if ( !link.result[0].isNumber() ) |
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315 | throw UIException ( "a vector element has to be a number", link.result[0] ); |
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316 | |
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317 | for ( int i = 0; i < len; i++ ) |
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318 | vector ( i ) = link.result[i]; |
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319 | |
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320 | return; |
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321 | } |
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322 | |
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323 | throw UIException ( "only numeric types, TypeArray or TypeList are supported as vector values", link.result ); |
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324 | } |
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325 | |
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326 | void UI::from_setting ( ivec &vector, const Setting &element ) { |
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327 | vec double_vector; |
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328 | from_setting ( double_vector, element ); |
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329 | int len = double_vector.length(); |
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330 | vector.set_length ( len ); |
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331 | for ( int i = 0; i < len; i++ ) |
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332 | vector ( i ) = ( int ) double_vector ( i ); |
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333 | } |
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334 | |
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335 | void UI::from_setting ( string &str, const Setting &element ) { |
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336 | assert_type ( element, Setting::TypeString ); |
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337 | str = ( const char* ) element; |
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338 | } |
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339 | |
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340 | void UI::from_setting ( int &integer, const Setting &element ) { |
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341 | // assert_type ( element, Setting::TypeInt ); |
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342 | integer = element; |
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343 | } |
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344 | |
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345 | void UI::from_setting ( double &real, const Setting &element ) { |
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346 | // assert_type ( element, Setting::TypeFloat ); |
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347 | real = element; |
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348 | } |
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349 | |
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350 | } |
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