C++ Property::Restore方法代码示例

void Chamfer::Restore(Base::XMLReader &reader)
{
    reader.readElement("Properties");
    int Cnt = reader.getAttributeAsInteger("Count");

    for (int i=0 ;i<Cnt ;i++) {
        reader.readElement("Property");
        const char* PropName = reader.getAttribute("name");
        const char* TypeName = reader.getAttribute("type");
        App::Property* prop = getPropertyByName(PropName);

        try {
            if (prop && strcmp(prop->getTypeId().getName(), TypeName) == 0) {
                prop->Restore(reader);
            }
            else if (prop && strcmp(TypeName,"App::PropertyFloatConstraint") == 0 &&
                     strcmp(prop->getTypeId().getName(), "App::PropertyQuantityConstraint") == 0) {
                App::PropertyFloatConstraint p;
                p.Restore(reader);
                static_cast<App::PropertyQuantityConstraint*>(prop)->setValue(p.getValue());
            }
        }
        catch (const Base::XMLParseException&) {
            throw; // re-throw
        }
        catch (const Base::Exception &e) {
            Base::Console().Error("%s\n", e.what());
        }
        catch (const std::exception &e) {
            Base::Console().Error("%s\n", e.what());
        }
        reader.readEndElement("Property");
    }
    reader.readEndElement("Properties");
}

void Part2DObject::Restore(Base::XMLReader &reader)
{
    //override generic restoration to convert Support property from PropertyLinkSub to PropertyLinkSubList

    reader.readElement("Properties");
    int Cnt = reader.getAttributeAsInteger("Count");

    for (int i=0 ;i<Cnt ;i++) {
        reader.readElement("Property");
        const char* PropName = reader.getAttribute("name");
        const char* TypeName = reader.getAttribute("type");
        App::Property* prop = getPropertyByName(PropName);
        // NOTE: We must also check the type of the current property because a
        // subclass of PropertyContainer might change the type of a property but
        // not its name. In this case we would force to read-in a wrong property
        // type and the behaviour would be undefined.
        try {
            if(prop){
                if (strcmp(prop->getTypeId().getName(), TypeName) == 0){
                    prop->Restore(reader);
                } else if (prop->isDerivedFrom(App::PropertyLinkSubList::getClassTypeId())){
                    //reading legacy Support - when the Support could only be a single flat face.
                    App::PropertyLinkSub tmp;
                    if (0 == strcmp(tmp.getTypeId().getName(),TypeName)) {
                        tmp.setContainer(this);
                        tmp.Restore(reader);
                        static_cast<App::PropertyLinkSubList*>(prop)->setValue(tmp.getValue(), tmp.getSubValues());
                    }
                    this->MapMode.setValue(Attacher::mmFlatFace);
                }
            }
        }
        catch (const Base::XMLParseException&) {
            throw; // re-throw
        }
        catch (const Base::Exception &e) {
            Base::Console().Error("%s\n", e.what());
        }
        catch (const std::exception &e) {
            Base::Console().Error("%s\n", e.what());
        }
        catch (const char* e) {
            Base::Console().Error("%s\n", e);
        }
#ifndef FC_DEBUG
        catch (...) {
            Base::Console().Error("PropertyContainer::Restore: Unknown C++ exception thrown");
        }
#endif

        reader.readEndElement("Property");
    }
    reader.readEndElement("Properties");
}

void Primitive::Restore(Base::XMLReader &reader)
{
    reader.readElement("Properties");
    int Cnt = reader.getAttributeAsInteger("Count");

    for (int i=0 ;i<Cnt ;i++) {
        reader.readElement("Property");
        const char* PropName = reader.getAttribute("name");
        const char* TypeName = reader.getAttribute("type");
        App::Property* prop = getPropertyByName(PropName);
        // For #0001652 the property types of many primitive features have changed
        // from PropertyFloat or PropertyFloatConstraint to a more meaningful type.
        // In order to load older project files there must be checked in case the
        // types don't match if both inherit from PropertyFloat because all derived
        // classes do not re-implement the Save/Restore methods.
        try {
            if (prop && strcmp(prop->getTypeId().getName(), TypeName) == 0) {
                prop->Restore(reader);
            }
            else if (prop) {
                Base::Type inputType = Base::Type::fromName(TypeName);
                if (prop->getTypeId().isDerivedFrom(App::PropertyFloat::getClassTypeId()) &&
                    inputType.isDerivedFrom(App::PropertyFloat::getClassTypeId())) {
                    // Do not directly call the property's Restore method in case the implmentation
                    // has changed. So, create a temporary PropertyFloat object and assign the value.
                    App::PropertyFloat floatProp;
                    floatProp.Restore(reader);
                    static_cast<App::PropertyFloat*>(prop)->setValue(floatProp.getValue());
                }
            }
        }
        catch (const Base::XMLParseException&) {
            throw; // re-throw
        }
        catch (const Base::Exception &e) {
            Base::Console().Error("%s\n", e.what());
        }
        catch (const std::exception &e) {
            Base::Console().Error("%s\n", e.what());
        }
        catch (const char* e) {
            Base::Console().Error("%s\n", e);
        }
#ifndef FC_DEBUG
        catch (...) {
            Base::Console().Error("Primitive::Restore: Unknown C++ exception thrown");
        }
#endif

        reader.readEndElement("Property");
    }
    reader.readEndElement("Properties");
}

void Transformed::Restore(Base::XMLReader &reader)
{
    reader.readElement("Properties");
    int Cnt = reader.getAttributeAsInteger("Count");

    for (int i=0 ;i<Cnt ;i++) {
        reader.readElement("Property");
        const char* PropName = reader.getAttribute("name");
        const char* TypeName = reader.getAttribute("type");
        App::Property* prop = getPropertyByName(PropName);

        // The property 'Angle' of PolarPattern has changed from PropertyFloat
        // to PropertyAngle and the property 'Length' has changed to PropertyLength.
        try {
            if (prop && strcmp(prop->getTypeId().getName(), TypeName) == 0) {
                prop->Restore(reader);
            }
            else if (prop) {
                Base::Type inputType = Base::Type::fromName(TypeName);
                if (prop->getTypeId().isDerivedFrom(App::PropertyFloat::getClassTypeId()) &&
                    inputType.isDerivedFrom(App::PropertyFloat::getClassTypeId())) {
                    // Do not directly call the property's Restore method in case the implmentation
                    // has changed. So, create a temporary PropertyFloat object and assign the value.
                    App::PropertyFloat floatProp;
                    floatProp.Restore(reader);
                    static_cast<App::PropertyFloat*>(prop)->setValue(floatProp.getValue());
                }
            }
        }
        catch (const Base::XMLParseException&) {
            throw; // re-throw
        }
        catch (const Base::Exception &e) {
            Base::Console().Error("%s\n", e.what());
        }
        catch (const std::exception &e) {
            Base::Console().Error("%s\n", e.what());
        }
        catch (const char* e) {
            Base::Console().Error("%s\n", e);
        }
#ifndef FC_DEBUG
        catch (...) {
            Base::Console().Error("Primitive::Restore: Unknown C++ exception thrown");
        }
#endif

        reader.readEndElement("Property");
    }
    reader.readEndElement("Properties");
}

//DVA is still Source PropertyLink so needs different logic vs DV::Restore
void DrawViewArch::Restore(Base::XMLReader &reader)
{
// this is temporary code for backwards compat (within v0.17).  can probably be deleted once there are no development
// fcstd files with old property types in use. 
    reader.readElement("Properties");
    int Cnt = reader.getAttributeAsInteger("Count");

    for (int i=0 ;i<Cnt ;i++) {
        reader.readElement("Property");
        const char* PropName = reader.getAttribute("name");
        const char* TypeName = reader.getAttribute("type");
        App::Property* schemaProp = getPropertyByName(PropName);
        try {
            if(schemaProp){
                if (strcmp(schemaProp->getTypeId().getName(), TypeName) == 0){        //if the property type in obj == type in schema
                    schemaProp->Restore(reader);                                      //nothing special to do
                } else if (strcmp(PropName, "Source") == 0) {
                    App::PropertyLinkGlobal glink;
                    App::PropertyLink link;
                    if (strcmp(glink.getTypeId().getName(),TypeName) == 0) {            //property in file is plg
                        glink.setContainer(this);
                        glink.Restore(reader);
                        if (glink.getValue() != nullptr) {
                            static_cast<App::PropertyLink*>(schemaProp)->setScope(App::LinkScope::Global);
                            static_cast<App::PropertyLink*>(schemaProp)->setValue(glink.getValue());
                        }
                    } else if (strcmp(link.getTypeId().getName(),TypeName) == 0) {            //property in file is pl
                        link.setContainer(this);
                        link.Restore(reader);
                        if (link.getValue() != nullptr) {
                            static_cast<App::PropertyLink*>(schemaProp)->setScope(App::LinkScope::Global);
                            static_cast<App::PropertyLink*>(schemaProp)->setValue(link.getValue());
                        }
                    
                    } else {
                        // has Source prop isn't PropertyLink or PropertyLinkGlobal! 
                        Base::Console().Log("DrawViewArch::Restore - old Document Source is weird: %s\n", TypeName);
                        // no idea
                    }
                } else {
                    Base::Console().Log("DrawViewArch::Restore - old Document has unknown Property\n");
                }
            }
        }
        catch (const Base::XMLParseException&) {
            throw; // re-throw
        }
        catch (const Base::Exception &e) {
            Base::Console().Error("%s\n", e.what());
        }
        catch (const std::exception &e) {
            Base::Console().Error("%s\n", e.what());
        }
        catch (const char* e) {
            Base::Console().Error("%s\n", e);
        }
#ifndef FC_DEBUG
        catch (...) {
            Base::Console().Error("PropertyContainer::Restore: Unknown C++ exception thrown\n");
        }
#endif

        reader.readEndElement("Property");
    }
    reader.readEndElement("Properties");

}

/**
 * This method was added for backward-compatibility. In former versions
 * of Box we had the properties x,y,z and l,h,w which have changed to
 * Location -- as replacement for x,y and z and Length, Height and Width.
 */
void Box::Restore(Base::XMLReader &reader)
{
    reader.readElement("Properties");
    int Cnt = reader.getAttributeAsInteger("Count");

    bool location_xyz = false;
    bool location_axis = false;
    bool distance_lhw = false;
    Base::Placement plm;
    App::PropertyDistance x,y,z;
    App::PropertyDistance l,w,h;
    App::PropertyVector Axis, Location;
    Axis.setValue(0.0f,0.0f,1.0f);
    for (int i=0 ;i<Cnt;i++) {
        reader.readElement("Property");
        const char* PropName = reader.getAttribute("name");
        const char* TypeName = reader.getAttribute("type");
        App::Property* prop = getPropertyByName(PropName);
        if (!prop) {
            // in case this comes from an old document we must use the new properties
            if (strcmp(PropName, "l") == 0) {
                distance_lhw = true;
                prop = &l;
            }
            else if (strcmp(PropName, "w") == 0) {
                distance_lhw = true;
                prop = &h; // by mistake w was considered as height
            }
            else if (strcmp(PropName, "h") == 0) {
                distance_lhw = true;
                prop = &w; // by mistake h was considered as width
            }
            else if (strcmp(PropName, "x") == 0) {
                location_xyz = true;
                prop = &x;
            }
            else if (strcmp(PropName, "y") == 0) {
                location_xyz = true;
                prop = &y;
            }
            else if (strcmp(PropName, "z") == 0) {
                location_xyz = true;
                prop = &z;
            }
            else if (strcmp(PropName, "Axis") == 0) {
                location_axis = true;
                prop = &Axis;
            }
            else if (strcmp(PropName, "Location") == 0) {
                location_axis = true;
                prop = &Location;
            }
        }
        else if (strcmp(PropName, "Length") == 0 && strcmp(TypeName,"PropertyDistance") == 0) {
            distance_lhw = true;
            prop = &l;
        }
        else if (strcmp(PropName, "Height") == 0 && strcmp(TypeName,"PropertyDistance") == 0) {
            distance_lhw = true;
            prop = &h;
        }
        else if (strcmp(PropName, "Width") == 0 && strcmp(TypeName,"PropertyDistance") == 0) {
            distance_lhw = true;
            prop = &w;
        }

        // NOTE: We must also check the type of the current property because a subclass
        // of PropertyContainer might change the type of a property but not its name.
        // In this case we would force to read-in a wrong property type and the behaviour
        // would be undefined.
        std::string tn = TypeName;
        if (strcmp(TypeName,"PropertyDistance") == 0) // missing prefix App::
            tn = std::string("App::") + tn;
        if (prop && strcmp(prop->getTypeId().getName(), tn.c_str()) == 0)
            prop->Restore(reader);

        reader.readEndElement("Property");
    }

    if (distance_lhw) {
        this->Length.setValue(l.getValue());
        this->Height.setValue(h.getValue());
        this->Width.setValue(w.getValue());
    }

    // for 0.7 releases or earlier
    if (location_xyz) {
        plm.setPosition(Base::Vector3d(x.getValue(),y.getValue(),z.getValue()));
        this->Placement.setValue(this->Placement.getValue() * plm);
        this->Shape.setStatus(App::Property::User1, true); // override the shape's location later on
    }
    // for 0.8 releases
    else if (location_axis) {
        Base::Vector3d d = Axis.getValue();
        Base::Vector3d p = Location.getValue();
//.........这里部分代码省略.........