From f77b286b8cd8c1942a4b47c1de8c862e941ebb02 Mon Sep 17 00:00:00 2001
From: reuk <reuk@users.noreply.github.com>
Date: Thu, 31 Mar 2022 19:29:21 +0100
Subject: [PATCH] VST3 Client:  Work around broken editor resizing in Blue
 Cat's PatchWork

---
 .../VST3/juce_VST3_Wrapper.cpp                | 32 +++++++++++++++++--
 1 file changed, 29 insertions(+), 3 deletions(-)

diff --git a/modules/juce_audio_plugin_client/VST3/juce_VST3_Wrapper.cpp b/modules/juce_audio_plugin_client/VST3/juce_VST3_Wrapper.cpp
index f06952a4f1..9cd29ecad4 100644
--- a/modules/juce_audio_plugin_client/VST3/juce_VST3_Wrapper.cpp
+++ b/modules/juce_audio_plugin_client/VST3/juce_VST3_Wrapper.cpp
@@ -642,10 +642,12 @@ class JuceVST3EditController : public Vst::EditController,
                                private ComponentRestarter::Listener
 {
 public:
-    JuceVST3EditController (Vst::IHostApplication* host)
+    explicit JuceVST3EditController (Vst::IHostApplication* host)
     {
         if (host != nullptr)
             host->queryInterface (FUnknown::iid, (void**) &hostContext);
+
+        blueCatPatchwork |= isBlueCatHost (host);
     }
 
     //==============================================================================
@@ -675,6 +677,8 @@ public:
         if (hostContext != context)
             hostContext = context;
 
+        blueCatPatchwork |= isBlueCatHost (context);
+
         return kResultTrue;
     }
 
@@ -1284,6 +1288,27 @@ public:
     static constexpr auto pluginShouldBeMarkedDirtyFlag = 1 << 16;
 
 private:
+    bool isBlueCatHost (FUnknown* context) const
+    {
+        // We can't use the normal PluginHostType mechanism here because that will give us the name
+        // of the host process. However, this plugin instance might be loaded in an instance of
+        // the BlueCat PatchWork host, which might itself be a plugin.
+
+        VSTComSmartPtr<Vst::IHostApplication> host;
+        host.loadFrom (context);
+
+        if (host == nullptr)
+            return false;
+
+        Vst::String128 name;
+
+        if (host->getName (name) != kResultOk)
+            return false;
+
+        const auto hostName = toString (name);
+        return hostName.contains ("Blue Cat's VST3 Host");
+    }
+
     friend class JuceVST3Component;
     friend struct Param;
 
@@ -1359,6 +1384,7 @@ private:
                       inSetupProcessing { false };
 
     int lastLatencySamples = 0;
+    bool blueCatPatchwork = isBlueCatHost (hostContext.get());
 
    #if ! JUCE_MAC
     float lastScaleFactorReceived = 1.0f;
@@ -2065,9 +2091,9 @@ private:
                         auto host = getHostType();
 
                        #if JUCE_MAC
-                        if (host.isWavelab() || host.isReaper())
+                        if (host.isWavelab() || host.isReaper() || owner.owner->blueCatPatchwork)
                        #else
-                        if (host.isWavelab() || host.isAbletonLive() || host.isBitwigStudio())
+                        if (host.isWavelab() || host.isAbletonLive() || host.isBitwigStudio() || owner.owner->blueCatPatchwork)
                        #endif
                             setBounds (editorBounds.withPosition (0, 0));
                     }