VST: Resize host window when global scale factor is changed

modules/juce_audio_plugin_client/VST/juce_VST_Wrapper.cpp

@@ -1161,23 +1161,21 @@ public:
 
         void resized() override
         {
+            auto newBounds = getLocalBounds();
+
+           #if JUCE_WINDOWS && JUCE_WIN_PER_MONITOR_DPI_AWARE
+            if (! lastBounds.isEmpty() && isWithin (newBounds.toDouble().getAspectRatio(), lastBounds.toDouble().getAspectRatio(), 0.1))
+                return;
+
+            lastBounds = newBounds;
+           #endif
+
             if (auto* ed = getEditorComp())
             {
                 ed->setTopLeftPosition (0, 0);
 
                 if (shouldResizeEditor)
-                {
-                    auto newBounds = getLocalBounds();
-
-                   #if JUCE_WINDOWS && JUCE_WIN_PER_MONITOR_DPI_AWARE
-                    if (! lastBounds.isEmpty() && isWithin (newBounds.toDouble().getAspectRatio(), lastBounds.toDouble().getAspectRatio(), 0.1))
-                        return;
-
-                    lastBounds = newBounds;
-                   #endif
-
                     ed->setBounds (ed->getLocalArea (this, newBounds));
-                }
 
                 updateWindowSize (false);
             }
@@ -1188,6 +1186,11 @@ public:
            #endif
         }
 
+        void parentSizeChanged() override
+        {
+            updateWindowSize (true);
+        }
+
         void childBoundsChanged (Component*) override
         {
             updateWindowSize (false);

modules/juce_audio_plugin_client/VST3/juce_VST3_Wrapper.cpp

@@ -1434,6 +1434,15 @@ private:
                 }
             }
 
+            void parentSizeChanged() override
+            {
+                if (pluginEditor != nullptr)
+                {
+                    resizeHostWindow();
+                    pluginEditor->repaint();
+                }
+            }
+
             void resizeHostWindow()
             {
                 if (pluginEditor != nullptr)
@@ -1459,7 +1468,7 @@ private:
                        #if JUCE_MAC
                         if (host.isWavelab() || host.isReaper())
                        #else
-                        if (host.isWavelab() || host.isAbletonLive())
+                        if (host.isWavelab() || host.isAbletonLive() || host.isBitwigStudio())
                        #endif
                             setBounds (0, 0, w, h);
                     }