Ensure rendering engine gets set on all TopLevelWindows

Author: anjaldoshi

Source/Processors/Editors/VisualizerEditor.cpp

@@ -166,15 +166,6 @@ void VisualizerEditor::ButtonResponder::buttonClicked (Button* button)
             editor->dataWindow->setVisible (true);
             editor->dataWindow->toFront (true);
             editor->dataWindow->addListener (editor);
-
-            // Set the rendering engine for the window
-            auto editorPeer = editor->getPeer();
-            if (auto peer = editor->canvas->getPeer())
-            {
-                auto editorPeer = editor->getPeer();
-                if (editorPeer)
-                    peer->setCurrentRenderingEngine (editorPeer->getCurrentRenderingEngine());
-            }
         }
         else
         {
@@ -191,6 +182,19 @@ void VisualizerEditor::ButtonResponder::buttonClicked (Button* button)
                 editor->dataWindow->setVisible (false);
             }
         }
+
+#if JUCE_WINDOWS
+        // Set the rendering engine for the window
+        if (editor->dataWindow->isVisible())
+        {
+            auto editorPeer = editor->getPeer();
+            if (auto peer = editor->dataWindow->getPeer())
+            {
+                if (editorPeer)
+                    peer->setCurrentRenderingEngine (editorPeer->getCurrentRenderingEngine());
+            }
+        }
+#endif
     }
     else if (button == editor->tabSelector.get())
     {

Source/UI/UIComponent.cpp

@@ -1105,21 +1105,13 @@ bool UIComponent::perform (const InvocationInfo& info)
 
         case setSoftwareRenderer:
         {
-            if (auto peer = getPeer())
-            {
-                peer->setCurrentRenderingEngine (0);
-                repaint();
-            }
+            setRenderingEngine (0);
             break;
         }
 
         case setDirect2DRenderer:
         {
-            if (auto peer = getPeer())
-            {
-                peer->setCurrentRenderingEngine (1);
-                repaint();
-            }
+            setRenderingEngine (1);
             break;
         }
 
@@ -1148,6 +1140,23 @@ bool UIComponent::perform (const InvocationInfo& info)
     return true;
 }
 
+void UIComponent::setRenderingEngine (int index)
+{
+#if JUCE_WINDOWS
+    for (int i = 0; i < TopLevelWindow::getNumTopLevelWindows(); i++)
+    {
+        if (TopLevelWindow* window = TopLevelWindow::getTopLevelWindow (i))
+        {
+            if (auto* peer = window->getPeer())
+            {
+                peer->setCurrentRenderingEngine (index);
+                window->repaint();
+            }
+        }
+    }
+#endif
+}
+
 void UIComponent::saveStateToXml (XmlElement* xml)
 {
     XmlElement* uiComponentState = xml->createNewChildElement ("UICOMPONENT");

Source/UI/UIComponent.h

@@ -294,6 +294,9 @@ class UIComponent : public Component,
 
     CustomLookAndFeel* customLookAndFeel;
 
+    /** Set the rendering engine to use on Windows - Software (CPU) or Direct2D (GPU))*/
+    void setRenderingEngine (int engineIndex);
+
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (UIComponent);
 };