VST: Ensure that reported bounds are consistent on all platforms

modules/juce_audio_processors/format_types/juce_VST3PluginFormat.cpp

@@ -1126,10 +1126,6 @@ struct VST3PluginWindow : public AudioProcessorEditor,
 
         warnOnFailure (view->setFrame (this));
 
-       #if JUCE_MAC
-        resizeToFit();
-       #endif
-
         Steinberg::IPlugViewContentScaleSupport* scaleInterface = nullptr;
         view->queryInterface (Steinberg::IPlugViewContentScaleSupport::iid, (void**) &scaleInterface);
 
@@ -1138,6 +1134,8 @@ struct VST3PluginWindow : public AudioProcessorEditor,
             pluginRespondsToDPIChanges = true;
             scaleInterface->release();
         }
+
+        resizeToFit();
     }
 
     ~VST3PluginWindow() override

modules/juce_audio_processors/format_types/juce_VSTPluginFormat.cpp

@@ -2776,7 +2776,10 @@ public:
 
         activeVSTWindows.add (this);
 
-        setSize (1, 1);
+        Vst2::ERect* rect = nullptr;
+        dispatch (Vst2::effEditGetRect, 0, 0, &rect, 0);
+        setSize (rect->right - rect->left, rect->bottom - rect->top);
+
         setOpaque (true);
         setVisible (true);
     }