| @@ -134,6 +134,20 bool PythonQtCallSlot(PythonQtClassInfo* classInfo, QObject* objectToCall, PyObj | |||
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134 | 134 | if (!directReturnValuePointer) { |
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135 | 135 | // create empty default value for the return value |
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136 | 136 | argList[0] = PythonQtConv::CreateQtReturnValue(returnValueParam); |
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137 | if (argList[0]==NULL) { | |
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138 | // return value could not be created, maybe we have a registered class with a default constructor, so that we can construct the pythonqt wrapper object and | |
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139 | // pass its internal pointer | |
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140 | PythonQtClassInfo* info = PythonQt::priv()->getClassInfo(returnValueParam.name); | |
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141 | if (info && info->pythonQtClassWrapper()) { | |
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142 | PyObject* emptyTuple = PyTuple_New(0); | |
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143 | // 1) default construct an empty object as python object (owned by PythonQt), by calling the meta class with empty arguments | |
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144 | result = PyObject_Call((PyObject*)info->pythonQtClassWrapper(), emptyTuple, NULL); | |
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145 | if (result) { | |
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146 | argList[0] = ((PythonQtInstanceWrapper*)result)->_wrappedPtr; | |
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147 | } | |
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148 | Py_DECREF(emptyTuple); | |
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149 | } | |
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150 | } | |
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137 | 151 | } else { |
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138 | 152 | // we can use our pointer directly! |
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139 | 153 | argList[0] = directReturnValuePointer; |
| @@ -150,13 +164,16 bool PythonQtCallSlot(PythonQtClassInfo* classInfo, QObject* objectToCall, PyObj | |||
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150 | 164 | result = NULL; |
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151 | 165 | } else { |
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152 | 166 | if (!returnValueIsEnum) { |
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153 | result = PythonQtConv::ConvertQtValueToPython(returnValueParam, argList[0]); | |
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167 | // the resulting object maybe present already, because we created it above at 1)... | |
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168 | if (!result) { | |
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169 | result = PythonQtConv::ConvertQtValueToPython(returnValueParam, argList[0]); | |
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170 | } | |
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154 | 171 | } else { |
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155 | 172 | result = PyInt_FromLong(*((unsigned int*)argList[0])); |
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156 | 173 | } |
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157 | 174 | } |
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158 | 175 | } else { |
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159 | QString e = QString("Called ") + info->fullSignature() + ", return type '" + returnValueParam.name + "' is ignored because it is unknown to PythonQt. Probaby you should register it using qRegisterMetaType()."; | |
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176 | QString e = QString("Called ") + info->fullSignature() + ", return type '" + returnValueParam.name + "' is ignored because it is unknown to PythonQt. Probably you should register it using qRegisterMetaType() or add a default constructor decorator to the class."; | |
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160 | 177 | PyErr_SetString(PyExc_ValueError, e.toLatin1().data()); |
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161 | 178 | result = NULL; |
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162 | 179 | } |
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