From 55fb6e1bb15ca16f551162e9d081ad395c346b43 Mon Sep 17 00:00:00 2001
From: reuk <reuk@users.noreply.github.com>
Date: Thu, 1 Nov 2018 14:02:35 +0000
Subject: [PATCH] AudioProcessorGraph:   Allow extracting nodes

---
 .../processors/juce_AudioProcessorGraph.cpp         | 13 +++++++------
 .../processors/juce_AudioProcessorGraph.h           |  6 +++---
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp b/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp
index 82d922262a..7d2ac0047d 100644
--- a/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp
+++ b/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp
@@ -961,31 +961,32 @@ AudioProcessorGraph::Node::Ptr AudioProcessorGraph::addNode (std::unique_ptr<Aud
     return n;
 }
 
-bool AudioProcessorGraph::removeNode (NodeID nodeId)
+std::unique_ptr<AudioProcessor> AudioProcessorGraph::removeNode (NodeID nodeId)
 {
     const ScopedLock sl (getCallbackLock());
 
     for (int i = nodes.size(); --i >= 0;)
     {
-        if (nodes.getUnchecked(i)->nodeID == nodeId)
+        if (nodes.getUnchecked (i)->nodeID == nodeId)
         {
             disconnectNode (nodeId);
+            auto internalProcessor = nodes[i] != nullptr ? std::move (nodes[i]->processor) : nullptr;
             nodes.remove (i);
             topologyChanged();
-            return true;
+            return internalProcessor;
         }
     }
 
-    return false;
+    return nullptr;
 }
 
-bool AudioProcessorGraph::removeNode (Node* node)
+std::unique_ptr<AudioProcessor> AudioProcessorGraph::removeNode (Node* node)
 {
     if (node != nullptr)
         return removeNode (node->nodeID);
 
     jassertfalse;
-    return false;
+    return nullptr;
 }
 
 //==============================================================================
diff --git a/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h b/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h
index bf669dbc5c..93b2d75a41 100644
--- a/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h
+++ b/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h
@@ -135,7 +135,7 @@ public:
             bool operator== (const Connection&) const noexcept;
         };
 
-        const std::unique_ptr<AudioProcessor> processor;
+        std::unique_ptr<AudioProcessor> processor;
         Array<Connection> inputs, outputs;
         bool isPrepared = false;
         std::atomic<bool> bypassed { false };
@@ -231,12 +231,12 @@ public:
     /** Deletes a node within the graph which has the specified ID.
         This will also delete any connections that are attached to this node.
     */
-    bool removeNode (NodeID);
+    std::unique_ptr<AudioProcessor> removeNode (NodeID);
 
     /** Deletes a node within the graph.
         This will also delete any connections that are attached to this node.
     */
-    bool removeNode (Node*);
+    std::unique_ptr<AudioProcessor> removeNode (Node*);
 
     /** Returns the list of connections in the graph. */
     std::vector<Connection> getConnections() const;