Fixed replacement of failed RenderView after sessionSource import (if a

sessionSource contains a RenderView, the later should be re-created).

Mixer.cpp

@@ -220,10 +220,8 @@ void Mixer::update()
         // failed Render loopback: replace it with one matching the current session
         RenderSource *failedRender = dynamic_cast<RenderSource *>(failure);
         if (failedRender != nullptr) {
-            RenderSource *fixedRender = new RenderSource;
-            replaceSource(failedRender, fixedRender);
-            fixedRender->setSession(session_);
-            failure = nullptr; // prevent delete (already done in replace)
+            if ( recreateSource(failedRender) )
+                failure = nullptr; // prevent delete (already done in recreateSource)
         }
         // delete the source
         deleteSource(failure, false);
@@ -423,36 +421,75 @@ void Mixer::insertSource(Source *s, View::Mode m)
 }
 
 
-void Mixer::replaceSource(Source *from, Source *to)
+bool Mixer::replaceSource(Source *from, Source *to)
 {
-    if ( from != nullptr && to != nullptr)
-    {
-        // rename
-        renameSource(to, from->name());
+    if ( from == nullptr || to == nullptr)
+        return false;
 
-        // remove source Nodes from all views
-        detach(from);
+    // rename
+    renameSource(to, from->name());
 
-        // copy all transforms
-        to->group(View::MIXING)->copyTransform( from->group(View::MIXING) );
-        to->group(View::GEOMETRY)->copyTransform( from->group(View::GEOMETRY) );
-        to->group(View::LAYER)->copyTransform( from->group(View::LAYER) );
-        to->group(View::MIXING)->copyTransform( from->group(View::MIXING) );
+    // remove source Nodes from all views
+    detach(from);
 
-        // TODO copy all filters
+    // copy all transforms
+    to->group(View::MIXING)->copyTransform( from->group(View::MIXING) );
+    to->group(View::GEOMETRY)->copyTransform( from->group(View::GEOMETRY) );
+    to->group(View::LAYER)->copyTransform( from->group(View::LAYER) );
+    to->group(View::MIXING)->copyTransform( from->group(View::MIXING) );
+
+    // TODO copy all filters
 
 
-        // add sources Nodes to all views
-        attach(to);
+    // add source Nodes to all views
+    attach(to);
 
-        // add source
-        session_->addSource(to);
+    // add source
+    session_->addSource(to);
 
-        // delete source
-        session_->deleteSource(from);
+    // delete source
+    session_->deleteSource(from);
 
-    }
+    return true;
+}
 
+
+bool Mixer::recreateSource(Source *s)
+{
+    if ( s == nullptr )
+        return false;
+
+    // get the xml description from this source, and exit if not wellformed
+    tinyxml2::XMLDocument xmlDoc;
+    tinyxml2::XMLError eResult = xmlDoc.Parse(Source::xml(s).c_str());
+    if ( XMLResultError(eResult))
+        return false;
+    tinyxml2::XMLElement *root = xmlDoc.FirstChildElement(APP_NAME);
+    if ( root == nullptr )
+        return false;
+    XMLElement* sourceNode = root->FirstChildElement("Source");
+    if ( sourceNode == nullptr )
+        return false;
+
+    // actually create the source with SessionLoader using xml description
+    SessionLoader loader( session_ );
+    Source *replacement = loader.createSource(sourceNode, false); // not clone
+    if (replacement == nullptr)
+        return false;
+
+    // remove source Nodes from all views
+    detach(s);
+
+    // delete source
+    session_->deleteSource(s);
+
+    // add sources Nodes to all views
+    attach(replacement);
+
+    // add source
+    session_->addSource(replacement);
+
+    return true;
 }
 
 void Mixer::deleteSource(Source *s, bool withundo)
@@ -1106,7 +1143,7 @@ void Mixer::paste(const std::string& clipboard)
     XMLElement* sourceNode = root->FirstChildElement("Source");
     for( ; sourceNode ; sourceNode = sourceNode->NextSiblingElement())
     {
-        addSource(loader.cloneOrCreateSource(sourceNode));
+        addSource(loader.createSource(sourceNode));
     }
 
 }

Mixer.h

@@ -109,7 +109,8 @@ protected:
     SourceList candidate_sources_;
     SourceList stash_;
     void insertSource(Source *s, View::Mode m = View::INVALID);
-    void replaceSource(Source *from, Source *to);
+    bool replaceSource(Source *from, Source *to);
+    bool recreateSource(Source *s);
 
     void setCurrentSource(SourceList::iterator it);
     SourceList::iterator current_source_;

SessionCreator.cpp

@@ -220,7 +220,7 @@ void SessionLoader::load(XMLElement *sessionNode)
 
 }
 
-Source *SessionLoader::cloneOrCreateSource(tinyxml2::XMLElement *sourceNode)
+Source *SessionLoader::createSource(tinyxml2::XMLElement *sourceNode, bool clone_duplicates)
 {
     xmlCurrent_ = sourceNode;
 
@@ -228,10 +228,13 @@ Source *SessionLoader::cloneOrCreateSource(tinyxml2::XMLElement *sourceNode)
     Source *load_source = nullptr;
     bool is_clone = false;
 
+    SourceList::iterator sit = session_->end();
     // check if a source with the given id exists in the session
-    uint64_t id__ = 0;
-    xmlCurrent_->QueryUnsigned64Attribute("id", &id__);
-    SourceList::iterator sit = session_->find(id__);
+    if (clone_duplicates) {
+        uint64_t id__ = 0;
+        xmlCurrent_->QueryUnsigned64Attribute("id", &id__);
+        sit = session_->find(id__);
+    }
 
     // no source with this id exists
     if ( sit == session_->end() ) {
@@ -278,8 +281,6 @@ Source *SessionLoader::cloneOrCreateSource(tinyxml2::XMLElement *sourceNode)
     // apply config to source
     if (load_source) {
         load_source->accept(*this);
-        // reset mixing (force to place in mixing scene)
-        load_source->group(View::MIXING)->translation_ = glm::vec3(DEFAULT_MIXING_TRANSLATION, 0.f);
         // increment depth for clones (avoid supperposition)
         if (is_clone)
             load_source->group(View::LAYER)->translation_.z += 0.2f;

SessionCreator.h

@@ -19,7 +19,7 @@ public:
     void load(tinyxml2::XMLElement *sessionNode);
     inline std::list<uint64_t> getIdList() const { return sources_id_; }
 
-    Source *cloneOrCreateSource(tinyxml2::XMLElement *sourceNode);
+    Source *createSource(tinyxml2::XMLElement *sourceNode, bool clone_duplicates = true);
 
     // Elements of Scene
     void visit (Node& n) override;

SessionSource.cpp

@@ -226,7 +226,7 @@ void SessionSource::update(float dt)
 void SessionSource::accept(Visitor& v)
 {
     Source::accept(v);
-    if (!failed())
+//    if (!failed())
         v.visit(*this);
 }
 
@@ -281,6 +281,6 @@ void RenderSource::init()
 void RenderSource::accept(Visitor& v)
 {
     Source::accept(v);
-    if (!failed())
+//    if (!failed())
         v.visit(*this);
 }