1 | // Copyright (c) 2013 by István Váradi
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2 |
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3 | // This file is part of XPLRA, a remote-access plugin for X-Plane
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4 |
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5 | // Redistribution and use in source and binary forms, with or without
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6 | // modification, are permitted provided that the following conditions are met:
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7 |
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8 | // 1. Redistributions of source code must retain the above copyright notice, this
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9 | // list of conditions and the following disclaimer.
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10 | // 2. Redistributions in binary form must reproduce the above copyright notice,
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11 | // this list of conditions and the following disclaimer in the documentation
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12 | // and/or other materials provided with the distribution.
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13 |
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14 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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15 | // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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16 | // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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17 | // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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18 | // ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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19 | // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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20 | // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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21 | // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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22 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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23 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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24 |
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25 | // The views and conclusions contained in the software and documentation are those
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26 | // of the authors and should not be interpreted as representing official policies,
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27 | // either expressed or implied, of the FreeBSD Project.
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28 |
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29 | #ifndef XPLRA_SETDATAREFTASK_H
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30 | #define XPLRA_SETDATAREFTASK_H
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31 | //------------------------------------------------------------------------------
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32 |
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33 | #include "DataRefTask.h"
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34 |
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35 | #include <xplcommon/DataStream.h>
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36 |
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37 | //------------------------------------------------------------------------------
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38 |
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39 | namespace xplra {
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40 |
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41 | //------------------------------------------------------------------------------
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42 |
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43 | /**
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44 | * Base class for dataref tasks that set the value of some data
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45 | * referenced by a dataref.
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46 | *
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47 | * Since XPLM provides no feedback on whether the setting is
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48 | * successful, we detect only if the dataref is valid or not. So the
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49 | * isValid() function provides the only feedback if the task executed
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50 | * successfully or not. (We could use XPLMCanWriteDataRef, but for
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51 | * efficiency reasons we refrain from it. A separate task may be
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52 | * created for this purpose.)
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53 | */
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54 | class SetDataRefTask : public DataRefTask
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55 | {
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56 | public:
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57 | /**
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58 | * Read a dataref setting specification and create the appropriate
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59 | * SetDataRefTask instance.
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60 | *
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61 | * @param result will contain the result of the operation. It
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62 | * signifies an error only, if some wrong data is read. If the
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63 | * stream fails, it will indicate RESULT_OK.
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64 | *
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65 | * @return the new instance or 0 on error.
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66 | */
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67 | static SetDataRefTask* create(uint8_t& result, xplcommon::DataStream& stream);
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68 |
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69 | /**
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70 | * Construct the task for the dataref with the given name.
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71 | */
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72 | SetDataRefTask(const std::string& name);
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73 |
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74 | /**
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75 | * Construct the task for the given dataref.
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76 | */
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77 | SetDataRefTask(XPLMDataRef dataRef);
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78 |
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79 | /**
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80 | * Read and set the value to update from the given stream
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81 | */
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82 | virtual void readValue(xplcommon::DataStream& stream) = 0;
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83 | };
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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 | /**
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89 | * Base class for dataref setting tasks that set a single scalar
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90 | * value.
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91 | *
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92 | * ConcreteClass is the actual child class. It should have a function
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93 | * name setData() which performs the actual setting.
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94 | */
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95 | template <typename T, class ConcreteClass>
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96 | class SetScalarDataRefTask : public SetDataRefTask
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97 | {
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98 | protected:
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99 | /**
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100 | * The value to set.
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101 | */
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102 | T value;
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103 |
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104 | public:
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105 | /**
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106 | * Construct the task for setting the data referenced by the
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107 | * dataref with the given name.
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108 | */
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109 | SetScalarDataRefTask(const std::string& name, T value);
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110 |
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111 | /**
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112 | * Construct the task for setting the data referenced by the given
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113 | * dataref.
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114 | */
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115 | SetScalarDataRefTask(XPLMDataRef dataRef, T value);
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116 |
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117 | protected:
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118 | /**
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119 | * Perform the actual operation.
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120 | */
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121 | virtual void process();
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122 | };
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123 |
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124 | //------------------------------------------------------------------------------
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125 | //------------------------------------------------------------------------------
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126 |
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127 | /**
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128 | * Task to set the value of an integer data.
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129 | */
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130 | class SetIntDataRefTask :
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131 | public SetScalarDataRefTask<int, SetIntDataRefTask>
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132 | {
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133 | public:
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134 | /**
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135 | * Set the given dataref's value to the given value.
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136 | */
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137 | static void setData(XPLMDataRef dataRef, int value);
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138 |
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139 | /**
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140 | * Construct the task for the dataref with the given name.
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141 | */
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142 | SetIntDataRefTask(const std::string& name, int value);
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143 |
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144 | /**
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145 | * Construct the task for the given dataref.
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146 | */
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147 | SetIntDataRefTask(XPLMDataRef dataRef, int value);
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148 |
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149 | /**
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150 | * Read and set the value to update from the given stream
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151 | */
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152 | virtual void readValue(xplcommon::DataStream& stream);
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153 | };
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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 | /**
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159 | * Task to set the value of a single-precision floating point data.
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160 | */
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161 | class SetFloatDataRefTask :
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162 | public SetScalarDataRefTask<float, SetFloatDataRefTask>
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163 | {
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164 | public:
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165 | /**
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166 | * Set the given dataref's value to the given value.
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167 | */
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168 | static void setData(XPLMDataRef dataRef, float value);
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169 |
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170 | /**
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171 | * Construct the task for the dataref with the given name.
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172 | */
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173 | SetFloatDataRefTask(const std::string& name, float value);
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174 |
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175 | /**
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176 | * Construct the task for the given dataref.
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177 | */
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178 | SetFloatDataRefTask(XPLMDataRef dataRef, float value);
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179 |
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180 | /**
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181 | * Read and set the value to update from the given stream
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182 | */
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183 | virtual void readValue(xplcommon::DataStream& stream);
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184 | };
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185 |
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186 | //------------------------------------------------------------------------------
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187 | //------------------------------------------------------------------------------
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188 |
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189 | /**
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190 | * Task to set the value of a double-precision floating point data.
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191 | */
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192 | class SetDoubleDataRefTask :
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193 | public SetScalarDataRefTask<double, SetDoubleDataRefTask>
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194 | {
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195 | public:
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196 | /**
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197 | * Set the given dataref's value to the given value.
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198 | */
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199 | static void setData(XPLMDataRef dataRef, double value);
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200 |
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201 | /**
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202 | * Construct the task for the dataref with the given name.
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203 | */
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204 | SetDoubleDataRefTask(const std::string& name, double value);
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205 |
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206 | /**
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207 | * Construct the task for the given dataref.
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208 | */
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209 | SetDoubleDataRefTask(XPLMDataRef dataRef, double value);
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210 |
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211 | /**
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212 | * Read and set the value to update from the given stream
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213 | */
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214 | virtual void readValue(xplcommon::DataStream& stream);
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215 | };
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216 |
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217 | //------------------------------------------------------------------------------
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218 | //------------------------------------------------------------------------------
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219 |
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220 | /**
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221 | * Base class for dataref setting tasks that set the values of an
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222 | * array.
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223 | *
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224 | * ConcreteClass is the actual child class. It should have a function
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225 | * name setData() which performs the actual setting.
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226 | */
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227 | template <typename T, class ConcreteClass>
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228 | class SetArrayDataRefTask : public SetDataRefTask
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229 | {
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230 | private:
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231 | /**
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232 | * The number of data items in the value.
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233 | */
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234 | int count;
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235 |
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236 | /**
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237 | * The offset starting with which the data should be set.
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238 | */
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239 | int offset;
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240 |
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241 | /**
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242 | * The value to set.
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243 | */
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244 | T* value;
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245 |
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246 | public:
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247 | /**
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248 | * Construct the data setting task for the dataref with the given
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249 | * name.
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250 | *
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251 | * The value array will be allocated, but not filled with
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252 | * data. Thus count should be positive!
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253 | */
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254 | SetArrayDataRefTask(const std::string& name, int count, int offset = 0);
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255 |
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256 | /**
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257 | * Construct the data setting task for the given dataref.
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258 | *
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259 | * The value array will be allocated, but not filled with
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260 | * data. Thus count should be positive!
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261 | */
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262 | SetArrayDataRefTask(XPLMDataRef dataRef, int count, int offset = 0);
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263 |
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264 | /**
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265 | * Destroy the task.
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266 | */
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267 | virtual ~SetArrayDataRefTask();
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268 |
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269 | /**
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270 | * Read and set the value to update from the given stream
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271 | */
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272 | virtual void readValue(xplcommon::DataStream& stream);
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273 |
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274 | protected:
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275 | /**
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276 | * Perform the actual operation.
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277 | */
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278 | virtual void process();
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279 | };
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280 |
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281 | //------------------------------------------------------------------------------
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282 | //------------------------------------------------------------------------------
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283 |
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284 | /**
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285 | * A dataref setting task which sets an array of integers.
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286 | */
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287 | class SetIntArrayDataRefTask :
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288 | public SetArrayDataRefTask<int, SetIntArrayDataRefTask>
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289 | {
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290 | public:
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291 | /**
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292 | * Perform the actual setting.
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293 | */
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294 | static void setData(XPLMDataRef dataRef, int* value, int count, int offset);
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295 |
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296 | /**
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297 | * Construct the task for the dataref with the given name.
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298 | */
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299 | SetIntArrayDataRefTask(const std::string& name, int count, int offset = 0);
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300 |
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301 | /**
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302 | * Construct the task for the given dataref.
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303 | */
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304 | SetIntArrayDataRefTask(XPLMDataRef dataRef, int count, int offset = 0);
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305 | };
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306 |
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307 | //------------------------------------------------------------------------------
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308 | //------------------------------------------------------------------------------
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309 |
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310 | /**
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311 | * A dataref setting task which sets an array of single-precision
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312 | * floating-point values.
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313 | */
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314 | class SetFloatArrayDataRefTask :
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315 | public SetArrayDataRefTask<float, SetFloatArrayDataRefTask>
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316 | {
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317 | public:
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318 | /**
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319 | * Perform the actual setting.
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320 | */
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321 | static void setData(XPLMDataRef dataRef, float* value, int count, int offset);
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322 |
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323 | /**
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324 | * Construct the task for the dataref with the given name.
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325 | */
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326 | SetFloatArrayDataRefTask(const std::string& name, int count, int offset = 0);
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327 |
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328 | /**
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329 | * Construct the task for the given dataref.
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330 | */
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331 | SetFloatArrayDataRefTask(XPLMDataRef dataRef, int count, int offset = 0);
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332 | };
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333 |
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334 | //------------------------------------------------------------------------------
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335 | //------------------------------------------------------------------------------
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336 |
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337 | /**
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338 | * A dataref setting task which sets an array of bytes.
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339 | */
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340 | class SetByteArrayDataRefTask :
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341 | public SetArrayDataRefTask<unsigned char, SetByteArrayDataRefTask>
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342 | {
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343 | public:
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344 | /**
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345 | * Perform the actual setting.
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346 | */
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347 | static void setData(XPLMDataRef dataRef, unsigned char* value,
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348 | int count, int offset);
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349 |
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350 | /**
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351 | * Construct the task for the dataref with the given name.
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352 | */
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353 | SetByteArrayDataRefTask(const std::string& name, int count, int offset = 0);
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354 |
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355 | /**
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356 | * Construct the task for the given dataref.
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357 | */
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358 | SetByteArrayDataRefTask(XPLMDataRef dataRef, int count, int offset = 0);
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359 | };
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360 |
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361 | //------------------------------------------------------------------------------
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362 | // Template definitions
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363 | //------------------------------------------------------------------------------
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364 |
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365 | template <typename T, class ConcreteClass>
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366 | inline SetScalarDataRefTask<T, ConcreteClass>::
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367 | SetScalarDataRefTask(const std::string& name, T value) :
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368 | SetDataRefTask(name),
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369 | value(value)
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370 | {
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371 | }
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372 |
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373 | //------------------------------------------------------------------------------
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374 |
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375 | template <typename T, class ConcreteClass>
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376 | inline SetScalarDataRefTask<T, ConcreteClass>::
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377 | SetScalarDataRefTask(XPLMDataRef dataRef, T value) :
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378 | SetDataRefTask(dataRef),
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379 | value(value)
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380 | {
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381 | }
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382 |
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383 | //------------------------------------------------------------------------------
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384 |
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385 | template <typename T, class ConcreteClass>
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386 | void SetScalarDataRefTask<T, ConcreteClass>::process()
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387 | {
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388 | ConcreteClass::setData(getDataRef(), value);
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389 | }
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390 |
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391 | //------------------------------------------------------------------------------
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392 | //------------------------------------------------------------------------------
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393 |
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394 | template <typename T, class ConcreteClass>
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395 | inline SetArrayDataRefTask<T, ConcreteClass>::
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396 | SetArrayDataRefTask(const std::string& name, int count, int offset) :
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397 | SetDataRefTask(name),
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398 | count(count),
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399 | offset(offset),
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400 | value(new T[count])
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401 | {
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402 | }
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403 |
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404 | //------------------------------------------------------------------------------
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405 |
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406 | template <typename T, class ConcreteClass>
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407 | inline SetArrayDataRefTask<T, ConcreteClass>::
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408 | SetArrayDataRefTask(XPLMDataRef dataRef, int count, int offset) :
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409 | SetDataRefTask(dataRef),
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410 | count(count),
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411 | offset(offset),
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412 | value(new T[count])
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413 | {
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414 | }
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415 |
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416 | //------------------------------------------------------------------------------
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417 |
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418 | template <typename T, class ConcreteClass>
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419 | inline SetArrayDataRefTask<T, ConcreteClass>::~SetArrayDataRefTask()
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420 | {
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421 | delete [] value;
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422 | }
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423 |
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424 | //------------------------------------------------------------------------------
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425 |
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426 | template <typename T, class ConcreteClass>
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427 | void SetArrayDataRefTask<T, ConcreteClass>::
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428 | readValue(xplcommon::DataStream& stream)
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429 | {
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430 | stream.read(value, count * sizeof(T));
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431 | }
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432 |
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433 | //------------------------------------------------------------------------------
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434 |
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435 | template <typename T, class ConcreteClass>
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436 | void SetArrayDataRefTask<T, ConcreteClass>::process()
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437 | {
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438 | ConcreteClass::setData(getDataRef(), value, count, offset);
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439 | }
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440 |
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441 | //------------------------------------------------------------------------------
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442 | // Inline definitions
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443 | //------------------------------------------------------------------------------
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444 |
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445 | inline SetDataRefTask::SetDataRefTask(const std::string& name) :
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446 | DataRefTask(name)
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447 | {
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448 | }
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449 |
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450 | //------------------------------------------------------------------------------
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451 |
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452 | inline SetDataRefTask::SetDataRefTask(XPLMDataRef dataRef) :
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453 | DataRefTask(dataRef)
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454 | {
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455 | }
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456 |
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457 | //------------------------------------------------------------------------------
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458 | //------------------------------------------------------------------------------
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459 |
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460 | inline void SetIntDataRefTask::setData(XPLMDataRef dataRef, int value)
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461 | {
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462 | XPLMSetDatai(dataRef, value);
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463 | }
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464 |
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465 | //------------------------------------------------------------------------------
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466 |
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467 | inline SetIntDataRefTask::SetIntDataRefTask(const std::string& name, int value) :
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468 | SetScalarDataRefTask<int, SetIntDataRefTask>(name, value)
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469 | {
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470 | }
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471 |
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472 | //------------------------------------------------------------------------------
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473 |
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474 | inline SetIntDataRefTask::SetIntDataRefTask(XPLMDataRef dataRef, int value) :
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475 | SetScalarDataRefTask<int, SetIntDataRefTask>(dataRef, value)
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476 | {
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477 | }
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478 |
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479 | //------------------------------------------------------------------------------
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480 | //------------------------------------------------------------------------------
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481 |
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482 | inline void SetFloatDataRefTask::setData(XPLMDataRef dataRef, float value)
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483 | {
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484 | XPLMSetDatai(dataRef, value);
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485 | }
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486 |
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487 | //------------------------------------------------------------------------------
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488 |
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489 | inline SetFloatDataRefTask::SetFloatDataRefTask(const std::string& name,
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490 | float value) :
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491 | SetScalarDataRefTask<float, SetFloatDataRefTask>(name, value)
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492 | {
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493 | }
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494 |
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495 | //------------------------------------------------------------------------------
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496 |
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497 | inline SetFloatDataRefTask::SetFloatDataRefTask(XPLMDataRef dataRef,
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498 | float value) :
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499 | SetScalarDataRefTask<float, SetFloatDataRefTask>(dataRef, value)
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500 | {
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501 | }
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502 |
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503 | //------------------------------------------------------------------------------
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504 | //------------------------------------------------------------------------------
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505 |
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506 | inline void SetDoubleDataRefTask::setData(XPLMDataRef dataRef, double value)
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507 | {
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508 | XPLMSetDatai(dataRef, value);
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509 | }
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510 |
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511 | //------------------------------------------------------------------------------
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512 |
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513 | inline SetDoubleDataRefTask::SetDoubleDataRefTask(const std::string& name,
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514 | double value) :
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515 | SetScalarDataRefTask<double, SetDoubleDataRefTask>(name, value)
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516 | {
|
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517 | }
|
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518 |
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519 | //------------------------------------------------------------------------------
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520 |
|
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521 | inline SetDoubleDataRefTask::SetDoubleDataRefTask(XPLMDataRef dataRef,
|
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522 | double value) :
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523 | SetScalarDataRefTask<double, SetDoubleDataRefTask>(dataRef, value)
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524 | {
|
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525 | }
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526 |
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527 | //------------------------------------------------------------------------------
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528 | //------------------------------------------------------------------------------
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529 |
|
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530 | inline void SetIntArrayDataRefTask::setData(XPLMDataRef dataRef, int* value,
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531 | int count, int offset)
|
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532 | {
|
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533 | XPLMSetDatavi(dataRef, value, offset, count);
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534 | }
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535 |
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536 | //------------------------------------------------------------------------------
|
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537 |
|
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538 | inline SetIntArrayDataRefTask::SetIntArrayDataRefTask(const std::string& name,
|
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539 | int count, int offset) :
|
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540 | SetArrayDataRefTask<int, SetIntArrayDataRefTask>(name, count, offset)
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541 | {
|
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542 | }
|
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543 |
|
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544 | //------------------------------------------------------------------------------
|
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545 |
|
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546 | inline SetIntArrayDataRefTask::SetIntArrayDataRefTask(XPLMDataRef dataRef,
|
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547 | int count, int offset) :
|
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548 | SetArrayDataRefTask<int, SetIntArrayDataRefTask>(dataRef, count, offset)
|
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549 | {
|
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550 | }
|
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551 |
|
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552 | //------------------------------------------------------------------------------
|
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553 | //------------------------------------------------------------------------------
|
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554 |
|
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555 | inline void SetFloatArrayDataRefTask::setData(XPLMDataRef dataRef,
|
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556 | float* value,
|
---|
557 | int count, int offset)
|
---|
558 | {
|
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559 | XPLMSetDatavf(dataRef, value, offset, count);
|
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560 | }
|
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561 |
|
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562 | //------------------------------------------------------------------------------
|
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563 |
|
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564 | inline
|
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565 | SetFloatArrayDataRefTask::SetFloatArrayDataRefTask(const std::string& name,
|
---|
566 | int count, int offset) :
|
---|
567 | SetArrayDataRefTask<float, SetFloatArrayDataRefTask>(name, count, offset)
|
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568 | {
|
---|
569 | }
|
---|
570 |
|
---|
571 | //------------------------------------------------------------------------------
|
---|
572 |
|
---|
573 | inline
|
---|
574 | SetFloatArrayDataRefTask::SetFloatArrayDataRefTask(XPLMDataRef dataRef,
|
---|
575 | int count, int offset) :
|
---|
576 | SetArrayDataRefTask<float, SetFloatArrayDataRefTask>(dataRef, count, offset)
|
---|
577 | {
|
---|
578 | }
|
---|
579 |
|
---|
580 | //------------------------------------------------------------------------------
|
---|
581 | //------------------------------------------------------------------------------
|
---|
582 |
|
---|
583 | inline void SetByteArrayDataRefTask::setData(XPLMDataRef dataRef,
|
---|
584 | unsigned char* value,
|
---|
585 | int count, int offset)
|
---|
586 | {
|
---|
587 | XPLMSetDatab(dataRef, value, offset, count);
|
---|
588 | }
|
---|
589 |
|
---|
590 | //------------------------------------------------------------------------------
|
---|
591 |
|
---|
592 | inline
|
---|
593 | SetByteArrayDataRefTask::SetByteArrayDataRefTask(const std::string& name,
|
---|
594 | int count, int offset) :
|
---|
595 | SetArrayDataRefTask<unsigned char, SetByteArrayDataRefTask>(name,
|
---|
596 | count, offset)
|
---|
597 | {
|
---|
598 | }
|
---|
599 |
|
---|
600 | //------------------------------------------------------------------------------
|
---|
601 |
|
---|
602 | inline
|
---|
603 | SetByteArrayDataRefTask::SetByteArrayDataRefTask(XPLMDataRef dataRef,
|
---|
604 | int count, int offset) :
|
---|
605 | SetArrayDataRefTask<unsigned char, SetByteArrayDataRefTask>(dataRef,
|
---|
606 | count, offset)
|
---|
607 | {
|
---|
608 | }
|
---|
609 |
|
---|
610 | //------------------------------------------------------------------------------
|
---|
611 |
|
---|
612 | } /* namespace xplra */
|
---|
613 |
|
---|
614 | //------------------------------------------------------------------------------
|
---|
615 | #endif // XPLRA_SETDATAREFTASK_H
|
---|
616 |
|
---|
617 | // Local Variables:
|
---|
618 | // mode: C++
|
---|
619 | // c-basic-offset: 4
|
---|
620 | // indent-tabs-mode: nil
|
---|
621 | // End:
|
---|