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annotate d2/qt/core/QMetaObject.d @ 402:e67ce7c21758

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gdc & 64 bit changes
author Eldar Insafutdinov
date Thu, 17 Mar 2011 19:45:42 +0000
parents a032df77b6ab
children
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1 module qt.core.QMetaObject;
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2
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3 import
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4 qt.QGlobal,
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5 qt.core.QObject,
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6 qtd.QtdObject,
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7 qtd.meta.Runtime,
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8 qtd.meta.Compiletime,
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9 qtd.Marshal,
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10 qtd.MOC,
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11 qtd.String,
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12 qtd.Signal,
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13 std.typetuple,
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14 std.traits,
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15 std.c.stdlib;
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16
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17 import std.string : indexOf;
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18 import std.algorithm : filter;
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19
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20 class QMetaArgument : MetaBase
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21 {
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22 }
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23
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24 class QMetaMethod : MetaBase
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25 {
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26 alias typeof(this) This;
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28 // QMetaArgument[] arguments;
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29 string signature;
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30 int index;
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32 this(string signature, int index)
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33 {
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34 this.signature = signature;
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35 this.index = index;
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36
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37 auto openBracket = indexOf(signature, '(');
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38 name = signature[0..openBracket];
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39 }
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40
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41 string args() const
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42 {
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43 auto openBracket = indexOf(signature, '(');
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44 if(signature.length - openBracket - 2 > 0)
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45 return signature[openBracket + 1 .. $-1];
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46 else
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47 return "";
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48 }
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50 static M create(alias method, M : This)(uint index)
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51 {
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52 alias ParameterTypeTuple!method Args;
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53 return new M(.signature!(Args)(methodName!(method)), index);
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54 }
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55 }
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56
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57 /**
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58 */
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59 class QMetaSignal : QMetaMethod
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60 {
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61 alias typeof(this) This;
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62
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63 this(string signature, int indexOfMethod)
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64 {
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65 super(signature, indexOfMethod);
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66 }
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67
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68 static This create(alias method)(uint index)
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69 {
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70 return typeof(super).create!(method, This)(index);
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71 }
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72 }
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73
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74 class QMetaSlot : QMetaMethod
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75 {
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76 alias typeof(this) This;
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77
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78 this(string signature, int indexOfMethod)
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79 {
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80 super(signature, indexOfMethod);
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81 }
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82
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83 static This create(alias method)(uint index)
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84 {
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85 return typeof(super).create!(method, This)(index);
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86 }
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87 }
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90
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91 struct QMetaObjectNative
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92 {
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93 QMetaObjectNative *superdata;
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94 immutable(char) *stringdata;
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95 const(uint) *data;
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96 void *extradata;
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97 }
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98
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99 // COMPILER BUG: causes a forward reference error if placed inside QMetaObject
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100 enum MetaCall
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101 {
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102 InvokeMetaMethod,
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103 ReadProperty,
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104 WriteProperty,
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105 ResetProperty,
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106 QueryPropertyDesignable,
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107 QueryPropertyScriptable,
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108 QueryPropertyStored,
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109 QueryPropertyEditable,
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110 QueryPropertyUser,
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111 CreateInstance
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112 }
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113
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114 /**
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115 */
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116 final class QMetaObject : QtdMetaClass
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117 {
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118 alias typeof(this) This;
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119
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120 this() {}
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121
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122 alias createImpl!This create;
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123
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124 void construct(T : QObject)()
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125 {
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126 super.construct!T();
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127
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128 static if (isQtType!T)
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129 {
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130 static if (is(T.ConcreteType))
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131 alias T.ConcreteType Concrete;
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132 else
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133 alias T Concrete;
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134
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135 T._populateMetaInfo(this);
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136 }
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137 // create run time meta-objects for user-defined signals and slots
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138 else static if (is(typeof(T.methods)))
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139 {
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140 alias BaseClassesTuple!(T)[0] Base;
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141 int index = meta!(Base).methodCount;
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142
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143 static if (T.signals.length)
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144 {
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145 foreach (signal; T.signals)
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146 {
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147 addMethod(QMetaSignal.create!signal(index));
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148 index++;
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149 }
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150 }
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151
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152 static if (T.slots.length)
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153 {
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154 foreach (slot; T.slots)
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155 {
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156 addMethod(QMetaSlot.create!slot(index));
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157 index++;
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158 }
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159 }
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160 }
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161 }
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162
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163 /**
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164 */
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165 @property
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166 override This next()
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167 {
368
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168 return static_cast!This(super.next);
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169 }
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170
368
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171 /**
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172 */
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173 @property
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174 override This firstDerived()
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175 {
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176 return static_cast!This(super.firstDerived);
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177 }
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178
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179 void addMethod(QMetaMethod method)
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180 {
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181 members_ ~= method;
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182 }
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183
368
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184 /**
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185 */
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186 @property
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187 override This base()
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188 {
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189 return super.base;
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190 }
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191
368
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192 /**
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193 */
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194 @property
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195 QMetaObjectNative* nativeId()
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196 {
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197 return cast(QMetaObjectNative*)super.nativeId;
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198 }
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199
368
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200 M lookUpMethod(M : QMetaMethod = QMetaMethod)(string signature)
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201 {
368
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202 foreach (method; allMembers)
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203 {
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204 if (auto m = cast(M)method)
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205 {
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206 if (m.signature == signature)
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207 return m;
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208 }
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209 }
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210 return null;
322
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211 }
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212
368
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213 // TODO: probably make this return a filtering range.
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214 auto lookUpMethodOverloads(M : QMetaMethod = QMetaMethod)(string name)
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215 {
368
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216 M[] methods;
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217 foreach (m; allMembers)
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218 {
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219 if (auto method = cast(M)m)
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220 {
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221 if (method.name == name)
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222 methods ~= method;
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223 }
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224 }
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225 return methods;
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226 }
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227
368
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228 private QMetaObject lookUpDerived(void*[] moIds)
253
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229 {
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230 assert (moIds.length >= 1);
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231
368
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232 for (auto mo = firstDerived; mo !is null; mo = mo.next)
253
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233 {
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234 if (mo.nativeId == moIds[0])
253
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235 {
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236 if (moIds.length == 1) // exact match found
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237 return mo;
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238 else // look deeper
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239 return mo.lookUpDerived(moIds[1..$]);
253
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240 }
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241 }
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242
253
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243 // no initialized wrapper that matches the native object.
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244 // use the base class wrapper
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245 return this;
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246 }
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247
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248 override QObject getWrapper(void* nativeObjId, QtdObjectInitFlags initFlags = QtdObjectInitFlags.none)
253
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249 {
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250 QObject result;
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251
253
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252 if (nativeObjId)
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253 {
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254 result = cast(QObject)qtd_get_d_qobject(nativeObjId);
253
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255 if (!result)
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256 {
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257 auto moId = qtd_QObject_metaObject(nativeObjId);
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258 auto nId = nativeId;
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259 if (nId == moId)
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260 result = static_cast!QObject(_createWrapper(nativeObjId, initFlags));
253
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261 else
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262 {
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263 // get native metaobjects for the entire derivation lattice
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264 // up to, but not including, the current metaobject.
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265 size_t moCount = 1;
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266
253
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267 for (void* tmp = moId;;)
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268 {
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269 tmp = qtd_QMetaObject_superClass(tmp);
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270 assert(tmp);
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271 if (tmp == nId)
253
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272 break;
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273 moCount++;
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274 }
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275
253
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276 void*[] moIds = (cast(void**)alloca(moCount * (void*).sizeof))[0..moCount];
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277
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278 moIds[--moCount] = moId;
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279 while (moCount > 0)
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280 moIds[--moCount] = moId = qtd_QMetaObject_superClass(moId);
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281
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282 auto mo = lookUpDerived(moIds);
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283 result = static_cast!QObject(mo._createWrapper(nativeObjId, initFlags));
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284 }
253
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285 }
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286 }
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287
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288 return result;
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289 }
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290
288
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291 static void activate(QObject sender, QMetaObject m, int local_signal_index, void **argv)
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292 {
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293 qtd_QMetaObject_activate_3(sender.qtdNativeId, m.nativeId, local_signal_index, argv);
288
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294 }
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295
288
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296 static void activate(QObject sender, QMetaObject m, int from_local_signal_index, int to_local_signal_index, void **argv)
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297 {
372
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diff changeset
298 qtd_QMetaObject_activate_4(sender.qtdNativeId, m.nativeId, from_local_signal_index, to_local_signal_index, argv);
288
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299 }
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300
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301 static bool connect(const QObject sender, int signal_index,
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302 const QObject receiver, int method_index,
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303 int type = 0, int *types = null)
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304 {
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305 return qtd_QMetaObject_connect(sender.qtdNativeId, signal_index, receiver.qtdNativeId, method_index, type, types);
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306 }
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307
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308 int indexOfMethod_Cpp(string method)
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309 {
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310 return qtd_QMetaObject_indexOfMethod(nativeId, toStringz(method));
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311 }
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312
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313 int methodCount()
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314 {
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315 return qtd_QMetaObject_methodCount(nativeId);
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316 }
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317
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318 static void connectImpl(QObject sender, string signalString, QObject receiver, string methodString, int type)
322
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319 {
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320 QMetaSignal[] signals;
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321 QMetaMethod[] methods;
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322 QMetaSignal signal;
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323 QMetaMethod method;
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324
322
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325 if(indexOf(signalString, '(') > 0)
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326 signal = sender.metaObject.lookUpMethod!QMetaSignal(signalString);
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327 else
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328 signals = sender.metaObject.lookUpMethodOverloads!QMetaSignal(signalString); // parameters not specified. Looking for a match
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329
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330 if(indexOf(methodString, '(') > 0)
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331 method = receiver.metaObject.lookUpMethod(methodString);
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332 else
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333 methods = receiver.metaObject.lookUpMethodOverloads(methodString); // parameters not specified. Looking for a match
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334
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335 if(!signal && !method)
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336 {
323
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337 Top:
322
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338 foreach(sig; signals)
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339 {
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340 foreach(meth; methods)
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341 {
322
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342 if(startsWith(sig.args, meth.args))
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343 {
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344 signal = sig;
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345 method = meth;
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346 break Top;
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347 }
368
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348 }
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349 }
322
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350 }
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351 else if (!signal)
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352 {
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353 foreach(sig; signals)
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354 if(startsWith(sig.args, method.args))
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355 {
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356 signal = sig;
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357 break;
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358 }
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359 }
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360 else if (!method)
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361 {
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362 foreach(meth; methods)
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363 if(startsWith(signal.args, meth.args))
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364 {
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365 method = meth;
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366 break;
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367 }
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368 }
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369
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370 bool success = false;
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371
322
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372 if(!signal && !method)
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373 {
323
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374 success = false;
322
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375 }
323
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376 else
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377 {
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378 int signalIndex = signal.index;
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379 int methodIndex = method.index;
357
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380
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381 success = QMetaObject.connect(sender, signalIndex, receiver, methodIndex, type);
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382 }
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383
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384 if(!success)
368
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385 {
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386 throw new MetaException("QMetaObject: Failed to connect signal "
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387 ~ sender.classinfo.name ~ "." ~ signalString ~ " to slot "
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388 ~ receiver.classinfo.name ~ "." ~ methodString ~ ". Make sure the signal and slot exist and match.");
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389 }
357
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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 */
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395 mixin template Q_CLASSINFO(string name, string value)
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396 {
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397 import qtd.meta.Compiletime;
357
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398 mixin InnerAttribute!("Q_CLASSINFO", AttributeOptions.allowMultiple, name, value);
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399 }
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400
368
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401 /**
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402 */
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403 mixin template Q_PROPERTY(T, string params)
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404 {
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405 static assert(false, "not implemented");
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406 }
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407
288
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408 extern(C) void qtd_QMetaObject_activate_3(void* sender, void* m, int local_signal_index, void **argv);
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409 extern(C) void qtd_QMetaObject_activate_4(void *sender, void* m, int from_local_signal_index, int to_local_signal_index, void **argv);
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410 extern(C) bool qtd_QMetaObject_connect(const void* sender, int signal_index,
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411 const void* receiver, int method_index,
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412 int type, int *types);
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413
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414 extern(C) int qtd_QMetaObject_indexOfMethod(void *nativeId, const(char) *method);
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415 extern(C) int qtd_QMetaObject_methodCount(void *nativeId);
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416
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417 extern(C) void* qtd_QMetaObject_superClass(void* nativeId);