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Attacher: Py: add interface for changing attacher type

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Plus a mechanism to remember attacher type of AttachableObject through
save-restore cycle.
This commit is contained in:
DeepSOIC
2016-05-06 21:52:23 +03:00
parent c040ee7333
commit 41bae90d28
4 changed files with 86 additions and 2 deletions
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46
src/Mod/Part/App/AttachableObject.cpp
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@@ -42,6 +42,9 @@ PROPERTY_SOURCE(Part::AttachableObject, Part::Feature);
AttachableObject::AttachableObject()
: _attacher(0)
{
ADD_PROPERTY_TYPE(AttacherType, ("Attacher::AttachEngine3D"), "Attachment",(App::PropertyType)(App::Prop_None),"Class name of attach engine object driving the attachment.");
this->AttacherType.setStatus(App::Property::Status::Hidden, true);
ADD_PROPERTY_TYPE(Support, (0,0), "Attachment",(App::PropertyType)(App::Prop_None),"Support of the 2D geometry");
ADD_PROPERTY_TYPE(MapMode, (mmDeactivated), "Attachment", App::Prop_None, "Mode of attachment to other object");
@@ -69,7 +72,44 @@ void AttachableObject::setAttacher(AttachEngine* attacher)
if (_attacher)
delete _attacher;
_attacher = attacher;
updateAttacherVals();
if (_attacher){
const char* typeName = attacher->getTypeId().getName();
if(strcmp(this->AttacherType.getValue(),typeName)!=0) //make sure we need to change, to break recursive onChange->changeAttacherType->onChange...
this->AttacherType.setValue(typeName);
updateAttacherVals();
} else {
if (strlen(AttacherType.getValue()) != 0){ //make sure we need to change, to break recursive onChange->changeAttacherType->onChange...
this->AttacherType.setValue("");
}
}
}
bool AttachableObject::changeAttacherType(const char* typeName)
{
//check if we need to actually change anything
if (_attacher){
if (strcmp(_attacher->getTypeId().getName(),typeName)==0){
return false;
}
} else if (strlen(typeName) == 0){
return false;
}
if (strlen(typeName) == 0){
setAttacher(nullptr);
return true;
}
Base::Type t = Base::Type::fromName(typeName);
if (t.isDerivedFrom(AttachEngine::getClassTypeId())){
AttachEngine* pNewAttacher = static_cast<Attacher::AttachEngine*>(Base::Type::createInstanceByName(typeName));
this->setAttacher(pNewAttacher);
return true;
} else {
std::stringstream errMsg;
errMsg << "Object if this type is not derived from AttachEngine: " << typeName;
throw Base::Exception(errMsg.str());
}
assert(false);//exec shouldn't ever get here
return false;
}
bool AttachableObject::positionBySupport()
@@ -138,6 +178,10 @@ void AttachableObject::onChanged(const App::Property* prop)
}
if(prop == &(this->AttacherType)){
this->changeAttacherType(this->AttacherType.getValue());
}
Part::Feature::onChanged(prop);
}