Beispiel #1
0
std::string BaseLink::CreateStringPath(Base* dest, Base* from)
{
    if (!dest || dest == from) return std::string("[]");
    BaseObject* o = dest->toBaseObject();
    BaseObject* f = from->toBaseObject();
    BaseContext* ctx = from->toBaseContext();
    if (!ctx && f) ctx = f->getContext();
    if (o)
    {
        std::string objectPath = o->getName();
        BaseObject* master = o->getMaster();
        while (master)
        {
            objectPath = master->getName() + std::string("/") + objectPath;
            master = master->getMaster();
        }
        BaseNode* n = o->getContext()->toBaseNode();
        if (f && o->getContext() == ctx)
            return objectPath;
        else if (n)
            return n->getPathName() + std::string("/") + objectPath; // TODO: compute relative path
        else
            return objectPath; // we could not determine destination path, specifying simply its name might be enough to find it back
    }
    else // dest is a context
    {
        if (f && ctx == dest)
            return std::string("./");
        BaseNode* n = dest->toBaseNode();
        if (n) return n->getPathName(); // TODO: compute relative path
        else return dest->getName(); // we could not determine destination path, specifying simply its name might be enough to find it back
    }
}
Beispiel #2
0
void* Node::findLinkDestClass(const core::objectmodel::BaseClass* destType, const std::string& path, const core::objectmodel::BaseLink* link)
{
    std::string pathStr;
    if (link)
    {
        if (!link->parseString(path,&pathStr))
            return NULL;
    }
    else
    {
        if (!BaseLink::ParseString(path,&pathStr,NULL,this))
            return NULL;
    }
#ifdef DEBUG_LINK
    std::cout << "LINK: Looking for " << destType->className << "<" << destType->templateName << "> " << pathStr << " from Node " << getName() << std::endl;
#endif
    std::size_t ppos = 0;
    std::size_t psize = pathStr.size();
    if (ppos == psize || (ppos == psize-2 && pathStr[ppos] == '[' && pathStr[ppos+1] == ']')) // self-reference
    {
#ifdef DEBUG_LINK
        std::cout << "  self-reference link." << std::endl;
#endif
        if (!link || !link->getOwnerBase()) return destType->dynamicCast(this);
        return destType->dynamicCast(link->getOwnerBase());
    }
    Node* node = this;
    BaseObject* master = NULL;
    bool based = false;
    if (ppos < psize && pathStr[ppos] == '[') // relative index in the list of objects
    {
        if (pathStr[psize-1] != ']')
        {
            serr << "Invalid index-based path \"" << path << "\"" << sendl;
            return NULL;
        }
        int index = atoi(pathStr.c_str()+ppos+1);
#ifdef DEBUG_LINK
        std::cout << "  index-based path to " << index << std::endl;
#endif
        ObjectReverseIterator it = object.rbegin();
        ObjectReverseIterator itend = object.rend();
        if (link && link->getOwnerBase())
        {
            // index from last
            Base* b = link->getOwnerBase();
            while (it != itend && *it != b)
                ++it;
        }
        while (it != itend && index < 0)
        {
            ++it;
            ++index;
        }
        if (it == itend)
            return NULL;
#ifdef DEBUG_LINK
        std::cout << "  found " << it->get()->getTypeName() << " " << it->get()->getName() << "." << std::endl;
#endif
        return destType->dynamicCast(it->get());
    }
    else if (ppos < psize && pathStr[ppos] == '/') // absolute path
    {
#ifdef DEBUG_LINK
        std::cout << "  absolute path" << std::endl;
#endif
        node = dynamic_cast<Node*>(this->getRoot());
        if (!node) return NULL;
        ++ppos;
        based = true;
    }
    while(ppos < psize)
    {
        if ((ppos+1 < psize && pathStr.substr(ppos,2) == "./")
                || pathStr.substr(ppos) == ".")
        {
            // this must be this node
#ifdef DEBUG_LINK
            std::cout << "  to current node" << std::endl;
#endif
            ppos += 2;
            based = true;
        }
        else if ((ppos+2 < psize && pathStr.substr(ppos,3) == "../") // relative
                 || pathStr.substr(ppos) == "..")
        {
            ppos += 3;
            if (master)
            {
                master = master->getMaster();
#ifdef DEBUG_LINK
                std::cout << "  to master object " << master->getName() << std::endl;
#endif
            }
            else
            {
                Parents parents = node->getParents();
                if (parents.empty()) return NULL;
                node = dynamic_cast<Node*>(parents[0]); // TODO: explore other parents
                if (!node) return NULL;
#ifdef DEBUG_LINK
                std::cout << "  to parent node " << node->getName() << std::endl;
#endif
            }
            based = true;
        }
        else if (pathStr[ppos] == '/')
        {
            // extra /
#ifdef DEBUG_LINK
            std::cout << "  extra '/'" << std::endl;
#endif
            ppos += 1;
        }
        else
        {
            std::size_t p2pos = pathStr.find('/',ppos);
            if (p2pos == std::string::npos) p2pos = psize;
            std::string name = pathStr.substr(ppos,p2pos-ppos);
            ppos = p2pos+1;
            if (master)
            {
#ifdef DEBUG_LINK
                std::cout << "  to slave object " << name << std::endl;
#endif
                master = master->getSlave(name);
                if (!master) return NULL;
            }
            else
            {
                for (;;)
                {
                    BaseObject* obj = node->getObject(name);
                    Node* child = node->getChild(name);
                    if (child)
                    {
                        node = child;
#ifdef DEBUG_LINK
                        std::cout << "  to child node " << name << std::endl;
#endif
                        break;
                    }
                    else if (obj)
                    {
                        master = obj;
#ifdef DEBUG_LINK
                        std::cout << "  to object " << name << std::endl;
#endif
                        break;
                    }
                    if (based) return NULL;
                    // this can still be found from an ancestor node
                    Parents parents = node->getParents();
                    if (parents.empty()) return NULL;
                    node = dynamic_cast<Node*>(parents[0]); // TODO: explore other parents
                    if (!node) return NULL;
#ifdef DEBUG_LINK
                    std::cout << "  looking in ancestor node " << node->getName() << std::endl;
#endif
                }
            }
            based = true;
        }
    }
    if (master)
    {
#ifdef DEBUG_LINK
        std::cout << "  found " << master->getTypeName() << " " << master->getName() << "." << std::endl;
#endif
        return destType->dynamicCast(master);
    }
    else
    {
        void* r = destType->dynamicCast(node);
        if (r)
        {
#ifdef DEBUG_LINK
            std::cout << "  found node " << node->getName() << "." << std::endl;
#endif
            return r;
        }
        for (ObjectIterator it = node->object.begin(), itend = node->object.end(); it != itend; ++it)
        {
            BaseObject* obj = it->get();
            void *o = destType->dynamicCast(obj);
            if (!o) continue;
#ifdef DEBUG_LINK
            std::cout << "  found " << obj->getTypeName() << " " << obj->getName() << "." << std::endl;
#endif
            if (!r) r = o;
            else return NULL; // several objects are possible, this is an ambiguous path
        }
        if (r) return r;
        // no object found, we look in parent nodes if the searched class is one of the known standard single components (state, topology, ...)
        if (destType->hasParent(sofa::core::BaseState::GetClass()))
            return destType->dynamicCast(node->getState());
        else if (destType->hasParent(core::topology::BaseMeshTopology::GetClass()))
            return destType->dynamicCast(node->getMeshTopology());
        else if (destType->hasParent(core::topology::Topology::GetClass()))
            return destType->dynamicCast(node->getTopology());
        else if (destType->hasParent(core::visual::Shader::GetClass()))
            return destType->dynamicCast(node->getShader());
        else if (destType->hasParent(core::behavior::BaseAnimationLoop::GetClass()))
            return destType->dynamicCast(node->getAnimationLoop());
        else if (destType->hasParent(core::behavior::OdeSolver::GetClass()))
            return destType->dynamicCast(node->getOdeSolver());
        else if (destType->hasParent(core::collision::Pipeline::GetClass()))
            return destType->dynamicCast(node->getCollisionPipeline());
        else if (destType->hasParent(core::visual::VisualLoop::GetClass()))
            return destType->dynamicCast(node->getVisualLoop());

        return NULL;
    }
}