Correctly layout quads on a parent cylinder. Center tray with active window.

app/src/common/shared/org/mozilla/vrbrowser/ui/widgets/TrayWidget.java

@@ -214,12 +214,14 @@ protected void initializeWidgetPlacement(WidgetPlacement aPlacement) {
         aPlacement.width = WidgetPlacement.dpDimension(context, R.dimen.tray_width);
         aPlacement.height = WidgetPlacement.dpDimension(context, R.dimen.tray_height);
         aPlacement.worldWidth = WidgetPlacement.floatDimension(getContext(), R.dimen.tray_world_width);
-        aPlacement.translationY = WidgetPlacement.unitFromMeters(context, R.dimen.tray_world_y);
-        aPlacement.translationZ = WidgetPlacement.unitFromMeters(context, R.dimen.tray_world_z);
+        aPlacement.translationY = WidgetPlacement.unitFromMeters(context, R.dimen.tray_world_y) -
+                                  WidgetPlacement.unitFromMeters(context, R.dimen.window_world_y);
+        aPlacement.translationZ = WidgetPlacement.unitFromMeters(context, R.dimen.tray_world_z) -
+                                  WidgetPlacement.unitFromMeters(context, R.dimen.window_world_z);
         aPlacement.anchorX = 0.5f;
         aPlacement.anchorY = 0.5f;
         aPlacement.parentAnchorX = 0.5f;
-        aPlacement.parentAnchorY = 0.5f;
+        aPlacement.parentAnchorY = 0.0f;
         aPlacement.rotationAxisX = 1.0f;
         aPlacement.rotation = (float)Math.toRadians(-45);
         aPlacement.opaque = false;
@@ -267,6 +269,8 @@ public void detachFromWindow() {
         if (mAttachedWindow != null) {
             mAttachedWindow.removeBookmarksListener(this);
         }
+        mWidgetPlacement.parentHandle = -1;
+
     }
 
     @Override
@@ -277,6 +281,7 @@ public void attachToWindow(@NonNull WindowWidget aWindow) {
         detachFromWindow();
 
         mAttachedWindow = aWindow;
+        mWidgetPlacement.parentHandle = aWindow.getHandle();
         mAttachedWindow.addBookmarksListener(this);
 
         mSessionStack = aWindow.getSessionStack();
@@ -328,6 +333,9 @@ private void toggleSettingsDialog() {
             mSettingsDialogHandle = widget.getHandle();
         }
 
+        if (mAttachedWindow != null) {
+            widget.getPlacement().parentHandle = mAttachedWindow.getHandle();
+        }
         if (widget.isVisible()) {
             widget.hide(REMOVE_WIDGET);
         } else {

app/src/common/shared/org/mozilla/vrbrowser/ui/widgets/settings/SettingsWidget.java

@@ -205,11 +205,13 @@ protected void initializeWidgetPlacement(WidgetPlacement aPlacement) {
         aPlacement.width =  WidgetPlacement.dpDimension(getContext(), R.dimen.settings_width);
         aPlacement.height = WidgetPlacement.dpDimension(getContext(), R.dimen.settings_height);
         aPlacement.parentAnchorX = 0.5f;
-        aPlacement.parentAnchorY = 0.5f;
+        aPlacement.parentAnchorY = 0.0f;
         aPlacement.anchorX = 0.5f;
         aPlacement.anchorY = 0.5f;
-        aPlacement.translationY = WidgetPlacement.unitFromMeters(getContext(), R.dimen.settings_world_y);
-        aPlacement.translationZ = WidgetPlacement.unitFromMeters(getContext(), R.dimen.settings_world_z);
+        aPlacement.translationY = WidgetPlacement.unitFromMeters(getContext(), R.dimen.settings_world_y) -
+                                  WidgetPlacement.unitFromMeters(getContext(), R.dimen.window_world_y);
+        aPlacement.translationZ = WidgetPlacement.unitFromMeters(getContext(), R.dimen.settings_world_z) -
+                                  WidgetPlacement.unitFromMeters(getContext(), R.dimen.window_world_z);
     }
 
     private void onSettingsPrivacyClick() {

app/src/main/cpp/BrowserWorld.cpp

@@ -1062,6 +1062,10 @@ BrowserWorld::LayoutWidget(int32_t aHandle) {
     translation = transform.GetTranslation();
   }
   widget->SetTransform(parent ? parent->GetTransform().PostMultiply(transform) : transform);
+
+  if (!widget->GetCylinder()) {
+    widget->LayoutQuadWithCylinderParent(parent && parent->GetCylinder() ? parent->GetCylinder() : nullptr);
+  }
 }
 
 void

app/src/main/cpp/Widget.cpp

@@ -162,13 +162,16 @@ struct Widget::State {
     // Translate the z of the cylinder to make the back of the curved surface the z position anchor point.
     vrb::Matrix translation = vrb::Matrix::Translation(vrb::Vector(0.0f, 0.0f, radius * scale));
     cylinder->SetTransform(translation.PostMultiply(scaleMatrix));
+    AdjustCylinderRotation(radius * scale);
+  }
+
+  void AdjustCylinderRotation(const float radius) {
     const float x = transform->GetTransform().GetTranslation().x();
     if (x != 0.0f && placement->cylinderMapRadius > 0) {
       // Automatically adjust correct yaw angle & position for the cylinders not centered on the X axis
-      const float r = radius * scale;
-      const float perimeter = 2.0f * r * (float)M_PI;
+      const float perimeter = 2.0f * radius * (float)M_PI;
       float angle = 0.5f * (float)M_PI - x / perimeter * 2.0f * (float)M_PI;
-      float delta = placement->cylinderMapRadius - radius * scale;
+      float delta = placement->cylinderMapRadius - radius;
       vrb::Matrix transform = vrb::Matrix::Rotation(vrb::Vector(-cosf(angle), 0.0f, sinf(angle)));
       transform.PreMultiplyInPlace(vrb::Matrix::Translation(vrb::Vector(0.0f, 0.0f, -delta)));
       transform.PostMultiplyInPlace(vrb::Matrix::Translation(vrb::Vector(-x, 0.0f, delta)));
@@ -591,6 +594,15 @@ Widget::SetProxifyLayer(const bool aValue) {
   m.layerProxy->ToggleAll(true);
 }
 
+Widget::LayoutQuadWithCylinderParent(const CylinderPtr& aCylinder) {
+  if (aCylinder) {
+    const float radius = aCylinder->GetTransformNode()->GetTransform().GetScale().x();
+    m.AdjustCylinderRotation(radius);
+  } else {
+    m.transformContainer->SetTransform(vrb::Matrix::Identity());
+  }
+}
+
 Widget::Widget(State& aState, vrb::RenderContextPtr& aContext) : m(aState) {
   m.context = aContext;
 }

app/src/main/cpp/Widget.h

@@ -76,6 +76,7 @@ class Widget {
   float GetCylinderDensity() const;
   void SetBorderColor(const vrb::Color& aColor);
   void SetProxifyLayer(const bool aValue);
+  void LayoutQuadWithCylinderParent(const CylinderPtr& aCylinder);
 protected:
   struct State;
   Widget(State& aState, vrb::RenderContextPtr& aContext);