Mercurial > hg > orthanc-stone
annotate Framework/Toolbox/GenericToolbox.h @ 1080:287ec78f63b4
GenericToolbox (fast c-string --> double or integer) + refactoring to be able
to set structures lut into configurator + fixed missing revision bump in
configurator + UT
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Mon, 21 Oct 2019 16:01:29 +0200 |
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children | 6cf58788f37f 141593f1aa88 |
rev | line source |
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1080
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1 /** |
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2 * Stone of Orthanc |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium |
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6 * |
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7 * This program is free software: you can redistribute it and/or |
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8 * modify it under the terms of the GNU Affero General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Affero General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 #pragma once |
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22 |
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23 #include <string> |
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24 |
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25 namespace OrthancStone |
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26 { |
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27 namespace GenericToolbox |
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28 { |
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29 inline bool LegitDoubleString(const char* text) |
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30 { |
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31 const char* p = text; |
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32 if(*p == '-') |
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33 p++; |
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34 size_t period = 0; |
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35 while(*p != 0) |
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36 { |
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37 if (*p >= '0' && *p <= '9') |
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38 ++p; |
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39 else if(*p == '.') |
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40 { |
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41 if(period > 0) |
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42 return false; |
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43 else |
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44 period++; |
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45 ++p; |
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46 } |
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47 else |
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48 return false; |
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49 } |
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50 return true; |
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51 } |
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52 |
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53 inline bool LegitIntegerString(const char* text) |
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54 { |
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55 const char* p = text; |
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56 if (*p == '-') |
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57 p++; |
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58 while (*p != 0) |
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59 { |
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60 if (*p >= '0' && *p <= '9') |
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61 ++p; |
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62 else |
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63 return false; |
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64 } |
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65 return true; |
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66 } |
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67 |
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68 /* |
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69 String to doubles with at most 18 digits |
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70 */ |
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71 inline bool StringToDouble(double& r, const char* text) |
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72 { |
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73 if(!LegitDoubleString(text)) |
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74 return false; |
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75 |
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76 static const double FRAC_FACTORS[] = |
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77 { |
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78 1.0, |
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79 0.1, |
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80 0.01, |
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81 0.001, |
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82 0.0001, |
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83 0.00001, |
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84 0.000001, |
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85 0.0000001, |
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86 0.00000001, |
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87 0.000000001, |
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88 0.0000000001, |
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89 0.00000000001, |
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90 0.000000000001, |
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91 0.0000000000001, |
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92 0.00000000000001, |
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93 0.000000000000001, |
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94 0.0000000000000001, |
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95 0.00000000000000001, |
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96 0.000000000000000001, |
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97 0.0000000000000000001 |
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98 }; |
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99 const size_t FRAC_FACTORS_LEN = sizeof(FRAC_FACTORS)/sizeof(double); |
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100 |
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101 r = 0.0; |
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102 double neg = 1.0; |
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103 const char* p = text; |
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104 |
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105 if (*p == '-') |
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106 { |
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107 neg = -1.0; |
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108 ++p; |
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109 } |
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110 // 12345.67890 |
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111 while (*p >= '0' && *p <= '9') |
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112 { |
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113 r = (r*10.0) + (*p - '0'); // 1 12 123 123 12345 |
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114 ++p; |
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115 } |
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116 if (*p == '.') |
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117 { |
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118 double f = 0.0; |
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119 int n = 1; |
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120 ++p; |
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121 while (*p >= '0' && *p <= '9' && n < FRAC_FACTORS_LEN) |
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122 { |
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123 f += (*p - '0') * FRAC_FACTORS[n]; |
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124 ++p; |
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125 ++n; |
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126 } |
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127 r += f; |
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128 } |
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129 r *= neg; |
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130 if (*p == 0 || (*p >= '0' && *p <= '9') ) |
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131 return true; |
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132 else |
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133 return false; |
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134 } |
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135 |
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136 inline bool StringToDouble(double& r, const std::string& text) |
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137 { |
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138 return StringToDouble(r, text.c_str()); |
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139 } |
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140 |
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141 template<typename T> |
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142 inline bool StringToInteger(T& r, const char* text) |
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143 { |
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144 if (!LegitDoubleString(text)) |
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145 return false; |
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146 |
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147 r = 0; |
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148 T neg = 1; |
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149 const char* p = text; |
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150 |
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151 if (*p == '-') |
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152 { |
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153 neg = -1; |
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154 ++p; |
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155 } |
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156 while (*p >= '0' && *p <= '9') |
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157 { |
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158 r = (r * 10) + (*p - '0'); // 1 12 123 123 12345 |
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159 ++p; |
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160 } |
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161 r *= neg; |
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162 if (*p == 0) |
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163 return true; |
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164 else |
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165 return false; |
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166 } |
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167 |
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168 template<typename T> |
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169 inline bool StringToInteger(T& r, const std::string& text) |
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170 { |
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171 return StringToInteger<T>(r, text.c_str()); |
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172 } |
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173 |
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174 /** |
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175 "rgb(12,23,255)" --> red, green, blue and returns true |
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176 "everything else" --> returns false (other values left untouched) |
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177 */ |
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178 bool GetRgbValuesFromString(uint8_t& red, uint8_t& green, uint8_t& blue, const char* text); |
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179 |
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180 /** |
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181 See other overload |
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182 */ |
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183 inline bool GetRgbValuesFromString(uint8_t& red, uint8_t& green, uint8_t& blue, const std::string& text) |
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184 { |
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185 return GetRgbValuesFromString(red, green, blue, text.c_str()); |
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186 } |
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187 |
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188 bool GetRgbaValuesFromString(uint8_t& red, uint8_t& green, uint8_t& blue, uint8_t& alpha, const char* text); |
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189 |
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190 inline bool GetRgbaValuesFromString(uint8_t& red, uint8_t& green, uint8_t& blue, uint8_t& alpha, const std::string& text) |
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191 { |
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192 return GetRgbaValuesFromString(red, green, blue, alpha, text.c_str()); |
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193 } |
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194 } |
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195 } |