Add stubs for IPlugViewContentScaleSupport

src/common/serialization/vst3/plug-view-proxy.cpp

@@ -23,11 +23,14 @@ Vst3PlugViewProxy::ConstructArgs::ConstructArgs(
     size_t owner_instance_id)
     : owner_instance_id(owner_instance_id),
       plug_view_args(object),
-      parameter_finder_args(object) {}
+      parameter_finder_args(object),
+      plug_view_content_scale_support_args(object) {}
 
 Vst3PlugViewProxy::Vst3PlugViewProxy(const ConstructArgs&& args)
     : YaPlugView(std::move(args.plug_view_args)),
       YaParameterFinder(std::move(args.parameter_finder_args)),
+      YaPlugViewContentScaleSupport(
+          std::move(args.plug_view_content_scale_support_args)),
       arguments(std::move(args)){FUNKNOWN_CTOR}
 
       Vst3PlugViewProxy::~Vst3PlugViewProxy() {
@@ -51,6 +54,10 @@ tresult PLUGIN_API Vst3PlugViewProxy::queryInterface(Steinberg::FIDString _iid,
         QUERY_INTERFACE(_iid, obj, Steinberg::Vst::IParameterFinder::iid,
                         Steinberg::Vst::IParameterFinder)
     }
+    if (YaPlugViewContentScaleSupport::supported()) {
+        QUERY_INTERFACE(_iid, obj, Steinberg::IPlugViewContentScaleSupport::iid,
+                        Steinberg::IPlugViewContentScaleSupport)
+    }
 
     *obj = nullptr;
     return Steinberg::kNoInterface;

src/common/serialization/vst3/plug-view-proxy.h

@@ -18,6 +18,7 @@
 
 #include "../common.h"
 #include "plug-view/parameter-finder.h"
+#include "plug-view/plug-view-content-scale-support.h"
 #include "plug-view/plug-view.h"
 
 #pragma GCC diagnostic push
@@ -30,7 +31,9 @@
  * `IEditController::createView()`, and it works exactly the same as
  * `Vst3PluginProxy`.
  */
-class Vst3PlugViewProxy : public YaPlugView, public YaParameterFinder {
+class Vst3PlugViewProxy : public YaPlugView,
+                          public YaParameterFinder,
+                          public YaPlugViewContentScaleSupport {
    public:
     /**
      * These are the arguments for constructing a
@@ -56,12 +59,15 @@ class Vst3PlugViewProxy : public YaPlugView, public YaParameterFinder {
         YaPlugView::ConstructArgs plug_view_args;
 
         YaParameterFinder::ConstructArgs parameter_finder_args;
+        YaPlugViewContentScaleSupport::ConstructArgs
+            plug_view_content_scale_support_args;
 
         template <typename S>
         void serialize(S& s) {
             s.value8b(owner_instance_id);
             s.object(plug_view_args);
             s.object(parameter_finder_args);
+            s.object(plug_view_content_scale_support_args);
         }
     };
 

src/plugin/bridges/vst3-impls/plug-view-proxy.cpp

@@ -186,3 +186,12 @@ tresult PLUGIN_API Vst3PlugViewProxyImpl::findParameter(
 
     return response.result;
 }
+
+tresult PLUGIN_API
+Vst3PlugViewProxyImpl::setContentScaleFactor(ScaleFactor factor) {
+    // TODO: Implement
+    bridge.logger.log(
+        "TODO: Implement "
+        "iplugviewcontentscalesupport::setContentScaleFactor()");
+    return Steinberg::kNotImplemented;
+}

src/plugin/bridges/vst3-impls/plug-view-proxy.h

@@ -63,6 +63,9 @@ class Vst3PlugViewProxyImpl : public Vst3PlugViewProxy {
                   int32 yPos,
                   Steinberg::Vst::ParamID& resultTag /*out*/) override;
 
+    // From `iplugviewcontentscalesupport`
+    tresult PLUGIN_API setContentScaleFactor(ScaleFactor factor) override;
+
     /**
      * The `IPlugFrame` object passed by the host passed to us in
      * `IPlugView::setFrame()`. When the plugin makes a callback on the