Mercurial > projects > qtd
annotate d2/qt/core/QMetaObject.d @ 367:f69341b40588
Removed dependencies on qtd.Traits
author | Max Samukha <maxter@spambox.com> |
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date | Thu, 24 Jun 2010 13:47:30 +0300 |
parents | da4235301224 |
children | 185df9220ea7 |
rev | line source |
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253 | 1 module qt.core.QMetaObject; |
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 std.typetuple, |
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13 std.traits, |
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14 std.c.stdlib; |
288 | 15 |
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16 import std.string : indexOf; |
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17 |
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18 class QMetaArgument : Meta |
288 | 19 { |
20 } | |
21 | |
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22 class QMetaMethod : Meta |
288 | 23 { |
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24 alias typeof(this) This; |
288 | 25 |
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26 // QMetaArgument[] arguments; |
288 | 27 string signature; |
28 int indexOfMethod; | |
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29 |
288 | 30 this(string signature_, int indexOfMethod_) |
31 { | |
32 signature = signature_; | |
33 indexOfMethod = indexOfMethod_; | |
34 } | |
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35 |
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36 string args() const |
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37 { |
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38 int openBracket = indexOf(signature, '('); |
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39 if(signature.length - openBracket - 2 > 0) |
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40 return signature[openBracket + 1 .. $-1]; |
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41 else |
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42 return ""; |
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43 } |
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44 |
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45 string name() const |
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46 { |
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47 int openBracket = indexOf(signature, '('); |
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48 return signature[0..openBracket]; |
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49 } |
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50 |
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51 // mixin(Derived) or typeof(Derived) would help a lot here |
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52 static create(alias method, M : This)(uint index) |
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53 { |
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54 alias ParameterTypeTuple!method Args; |
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55 return new M(.signature!(Args)(methodName!(method)), index); |
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56 } |
288 | 57 } |
58 | |
59 class QMetaSignal : QMetaMethod | |
60 { | |
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61 alias typeof(this) This; |
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62 |
288 | 63 this(string signature_, int indexOfMethod_) |
64 { | |
65 super(signature_, indexOfMethod_); | |
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 } |
288 | 72 } |
73 | |
74 class QMetaSlot : QMetaMethod | |
75 { | |
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76 alias typeof(this) This; |
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77 |
288 | 78 this(string signature_, int indexOfMethod_) |
79 { | |
80 super(signature_, indexOfMethod_); | |
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 } |
288 | 87 } |
88 | |
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89 class MetaObject : MetaType |
288 | 90 { |
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91 MetaObject _base; |
288 | 92 } |
93 | |
94 struct QMetaObjectNative | |
95 { | |
96 QMetaObjectNative *superdata; | |
97 immutable(char) *stringdata; | |
98 const(uint) *data; | |
99 void *extradata; | |
100 } | |
101 | |
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102 class QMetaException : Exception { this(string msg) { super(msg); } } |
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103 |
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104 final class QMetaObject |
253 | 105 { |
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106 alias typeof(this) This; |
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107 |
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108 private this() {} |
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109 |
288 | 110 enum Call |
111 { | |
112 InvokeMetaMethod, | |
113 ReadProperty, | |
114 WriteProperty, | |
115 ResetProperty, | |
116 QueryPropertyDesignable, | |
117 QueryPropertyScriptable, | |
118 QueryPropertyStored, | |
119 QueryPropertyEditable, | |
120 QueryPropertyUser, | |
121 CreateInstance | |
122 } | |
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123 |
253 | 124 private |
125 { | |
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126 QMetaObjectNative* _nativeId; |
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127 QMetaObject _base; // super class |
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128 QMetaObject _firstDerived; // head of the linked list of derived classes |
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129 QMetaObject _next; // next sibling on this derivation level |
288 | 130 QMetaMethod[] _methods; |
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131 ClassInfo _classInfo; |
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132 |
253 | 133 QObject function(void* nativeId) _createWrapper; |
134 } | |
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135 |
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136 private void addDerived(QMetaObject mo) |
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137 { |
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138 mo._next = _firstDerived; |
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139 _firstDerived = mo; |
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140 } |
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141 |
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142 // ctor |
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143 void construct(T : QObject)(void* nativeId) |
253 | 144 { |
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145 alias BaseClassesTuple!(T)[0] Base; |
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146 This base; |
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147 static if (is(Base : QObject)) |
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148 base = Base.staticMetaObject; |
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149 |
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150 _nativeId = cast(QMetaObjectNative*)nativeId; |
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151 T.setStaticMetaObject(this); |
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152 |
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153 if (base) |
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154 { |
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155 base.addDerived(this); |
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156 _base = base; |
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157 } |
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158 _classInfo = T.classinfo; |
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159 |
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160 |
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161 static if (isQtType!T) |
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162 { |
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163 static if (is(T.ConcreteType)) |
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164 alias T.ConcreteType Concrete; |
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165 else |
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166 alias T Concrete; |
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167 |
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168 _createWrapper = function QObject(void* nativeId) { |
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169 auto obj = new Concrete(nativeId, cast(QtdObjectFlags)(QtdObjectFlags.nativeOwnership | QtdObjectFlags.dynamicEntity)); |
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170 T.__createEntity(nativeId, cast(void*)obj); |
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171 return obj; |
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172 }; |
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173 |
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174 T._populateMetaInfo; |
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175 } |
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176 // create run time meta-objects for user-defined signals and slots |
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177 else static if (is(typeof(T.methods))) |
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178 { |
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179 int index = Base.staticMetaObject().methodCount(); |
253 | 180 |
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181 static if (T.signals.length) |
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182 { |
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183 foreach (signal; T.signals) |
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184 { |
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185 addMethod(QMetaSignal.create!signal(index)); |
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186 index++; |
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187 } |
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188 } |
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189 |
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190 static if (T.slots.length) |
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191 { |
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192 foreach (slot; T.slots) |
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193 { |
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194 addMethod(QMetaSlot.create!slot(index)); |
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195 index++; |
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196 } |
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197 } |
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198 } |
253 | 199 } |
350
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200 |
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201 // new |
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202 static This create(T : QObject)(void* nativeId) |
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203 { |
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204 auto m = new This(); |
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205 m.construct!T(nativeId); |
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206 return m; |
350
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207 } |
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208 |
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209 /++ |
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210 +/ |
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211 QMetaObject base() |
253 | 212 { |
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213 return _base; |
253 | 214 } |
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215 |
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216 /++ |
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217 +/ |
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218 QMetaObjectNative* nativeId() |
253 | 219 { |
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220 return _nativeId; |
253 | 221 } |
222 | |
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223 /++ |
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224 +/ |
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225 ClassInfo classInfo() |
253 | 226 { |
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227 return _classInfo; |
253 | 228 } |
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229 |
288 | 230 const (QMetaMethod[]) methods() |
231 { | |
232 return _methods; | |
233 } | |
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234 |
288 | 235 void addMethod(QMetaMethod method_) |
236 { | |
237 _methods ~= method_; | |
238 } | |
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239 |
322
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240 QMetaMethod lookUpMethod(string slot) |
288 | 241 { |
242 foreach (method; _methods) | |
243 if (method.signature == slot) | |
322
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244 return method; |
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245 if (_base) |
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246 return _base.lookUpMethod(slot); |
288 | 247 else |
322
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248 return null; |
288 | 249 } |
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250 |
322
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251 QMetaSignal lookUpSignal(string signal) |
288 | 252 { |
253 foreach (method; _methods) | |
254 if (method.signature == signal && cast(QMetaSignal)method) | |
322
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255 return cast(QMetaSignal)method; |
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256 if (_base) |
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257 return _base.lookUpSignal(signal); |
288 | 258 else |
322
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259 return null; |
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260 } |
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261 |
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262 QMetaMethod[] lookUpMethodOverloads(string methodName) |
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263 { |
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264 typeof(return) result; |
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265 foreach (method; _methods) |
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266 if (method.name == methodName) |
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267 result ~= method; |
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268 if (_base) |
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269 result ~= _base.lookUpMethodOverloads(methodName); |
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270 return result; |
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271 } |
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272 |
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273 QMetaSignal[] lookUpSignalOverloads(string signalName) |
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274 { |
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275 typeof(return) result; |
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276 foreach (method; _methods) |
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277 if (method.name == signalName && cast(QMetaSignal)method) |
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278 result ~= cast(QMetaSignal)method; |
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279 if (_base) |
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280 result ~= _base.lookUpSignalOverloads(signalName); |
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281 return result; |
288 | 282 } |
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283 |
253 | 284 private QMetaObject lookupDerived(void*[] moIds) |
285 { | |
286 assert (moIds.length >= 1); | |
357
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287 |
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288 for (auto mo = _firstDerived; mo !is null; mo = mo._next) |
253 | 289 { |
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290 if (mo._nativeId == moIds[0]) |
253 | 291 { |
292 if (moIds.length == 1) // exact match found | |
293 return mo; | |
294 else // look deeper | |
295 return mo.lookupDerived(moIds[1..$]); | |
296 } | |
297 } | |
357
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298 |
253 | 299 // no initialized wrapper that matches the native object. |
300 // use the base class wrapper | |
301 return this; | |
302 } | |
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303 |
253 | 304 QObject getObject(void* nativeObjId) |
305 { | |
306 QObject result; | |
350
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307 |
253 | 308 if (nativeObjId) |
309 { | |
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310 result = cast(QObject)qtd_get_d_qobject(nativeObjId); |
253 | 311 if (!result) |
312 { | |
313 auto moId = qtd_QObject_metaObject(nativeObjId); | |
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314 if (_nativeId == moId) |
253 | 315 result = _createWrapper(nativeObjId); |
316 else | |
317 { | |
318 // get native metaobjects for the entire derivation lattice | |
319 // up to, but not including, the current metaobject. | |
320 size_t moCount = 1; | |
350
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321 |
253 | 322 for (void* tmp = moId;;) |
323 { | |
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324 tmp = qtd_QMetaObject_superClass(tmp); |
253 | 325 assert(tmp); |
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326 if (tmp == _nativeId) |
253 | 327 break; |
328 moCount++; | |
329 } | |
350
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330 |
253 | 331 void*[] moIds = (cast(void**)alloca(moCount * (void*).sizeof))[0..moCount]; |
332 | |
333 moIds[--moCount] = moId; | |
334 while (moCount > 0) | |
335 moIds[--moCount] = moId = qtd_QMetaObject_superClass(moId); | |
350
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336 |
253 | 337 result = lookupDerived(moIds)._createWrapper(nativeObjId); |
288 | 338 } |
253 | 339 } |
340 } | |
341 | |
342 return result; | |
343 } | |
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344 |
288 | 345 static void activate(QObject sender, QMetaObject m, int local_signal_index, void **argv) |
346 { | |
347 qtd_QMetaObject_activate_3(sender.__nativeId, m.nativeId, local_signal_index, argv); | |
348 } | |
357
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349 |
288 | 350 static void activate(QObject sender, QMetaObject m, int from_local_signal_index, int to_local_signal_index, void **argv) |
351 { | |
352 qtd_QMetaObject_activate_4(sender.__nativeId, m.nativeId, from_local_signal_index, to_local_signal_index, argv); | |
353 } | |
354 | |
355 static bool connect(const QObject sender, int signal_index, | |
356 const QObject receiver, int method_index, | |
357 int type = 0, int *types = null) | |
358 { | |
359 return qtd_QMetaObject_connect(sender.__nativeId, signal_index, receiver.__nativeId, method_index, type, types); | |
360 } | |
357
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361 |
288 | 362 int indexOfMethod_Cpp(string method) |
363 { | |
365
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364 return qtd_QMetaObject_indexOfMethod(_nativeId, toStringz(method)); |
288 | 365 } |
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366 |
288 | 367 int methodCount() |
368 { | |
365
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369 return qtd_QMetaObject_methodCount(_nativeId); |
288 | 370 } |
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371 |
337 | 372 static void connectImpl(QObject sender, string signalString, QObject receiver, string methodString, int type) |
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373 { |
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374 QMetaSignal[] signals; |
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375 QMetaMethod[] methods; |
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376 QMetaSignal signal; |
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377 QMetaMethod method; |
288 | 378 |
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379 if(indexOf(signalString, '(') > 0) |
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380 signal = sender.metaObject.lookUpSignal(signalString); |
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381 else |
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382 signals = sender.metaObject.lookUpSignalOverloads(signalString); // parameters not specified. Looking for a match |
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383 |
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384 if(indexOf(methodString, '(') > 0) |
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385 method = receiver.metaObject.lookUpMethod(methodString); |
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386 else |
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387 methods = receiver.metaObject.lookUpMethodOverloads(methodString); // parameters not specified. Looking for a match |
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388 |
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389 if(!signal && !method) |
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390 { |
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391 Top: |
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392 foreach(sig; signals) |
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393 foreach(meth; methods) |
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394 if(startsWith(sig.args, meth.args)) |
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395 { |
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396 signal = sig; |
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397 method = meth; |
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398 break Top; |
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399 } |
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400 } |
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401 else if (!signal) |
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402 { |
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403 foreach(sig; signals) |
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404 if(startsWith(sig.args, method.args)) |
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405 { |
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406 signal = sig; |
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407 break; |
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408 } |
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409 } |
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410 else if (!method) |
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411 { |
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412 foreach(meth; methods) |
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413 if(startsWith(signal.args, meth.args)) |
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414 { |
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415 method = meth; |
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416 break; |
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417 } |
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418 } |
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419 |
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420 bool success = false; |
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421 |
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422 if(!signal && !method) |
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423 { |
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424 success = false; |
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425 } |
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426 else |
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427 { |
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428 int signalIndex = signal.indexOfMethod; |
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429 int methodIndex = method.indexOfMethod; |
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430 |
337 | 431 success = QMetaObject.connect(sender, signalIndex, receiver, methodIndex, type); |
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432 } |
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433 |
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434 if(!success) |
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435 throw new QMetaException("QMetaObject: Signal " ~ signalString ~ " cannot be connected to slot " ~ methodString); |
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436 } |
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437 } |
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438 |
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439 /** |
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440 */ |
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441 mixin template Q_CLASSINFO(string name, string value) |
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442 { |
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443 mixin InnerAttribute!("Q_CLASSINFO", AttributeOptions.allowMultiple, name, value); |
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444 } |
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445 |
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446 version (QtdUnittest) |
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447 { |
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448 unittest |
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449 { |
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450 static class Test : QObject |
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451 { |
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452 mixin Q_CLASSINFO!("author", "Sabrina Schweinsteiger"); |
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453 mixin Q_CLASSINFO!("url", "http://doc.moosesoft.co.uk/1.0/"); |
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454 |
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455 mixin Q_OBJECT; |
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456 } |
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457 } |
253 | 458 } |
459 | |
288 | 460 extern(C) void qtd_QMetaObject_activate_3(void* sender, void* m, int local_signal_index, void **argv); |
461 extern(C) void qtd_QMetaObject_activate_4(void *sender, void* m, int from_local_signal_index, int to_local_signal_index, void **argv); | |
462 extern(C) bool qtd_QMetaObject_connect(const void* sender, int signal_index, | |
463 const void* receiver, int method_index, | |
464 int type, int *types); | |
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465 |
288 | 466 extern(C) int qtd_QMetaObject_indexOfMethod(void *nativeId, const(char) *method); |
467 extern(C) int qtd_QMetaObject_methodCount(void *nativeId); | |
468 | |
337 | 469 extern(C) void* qtd_QMetaObject_superClass(void* nativeId); |