the actions of copy and cut are ok, when i paste the elentities by using the following code:
RPasteOperation *op = new RPasteOperation(getDocument()->getClipboard());
finally, the class of Rdocumentinterface is used to apply the operation by the following:
getDocumentInterface()->previewOperation(op);// it's preview
but there's a exception, when i debug it step by step, the exception happen to the following function:
RS::Unit RStorage::getUnit() const {
QSharedPointer<RDocumentVariables> v = queryDocumentVariablesDirect(); // exception happen
if (v.isNull()) {
return RS::None;
}
return v->getUnit();
}
why?
Paste is exception
Discussion forum for C++ and script developers who are using the QCAD development platform or who are looking to contribute to QCAD (translations, documentation, etc).
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