Render reference layers only in the sprite editor

src/app/commands/cmd_fullscreen_preview.cpp

@@ -173,6 +173,7 @@ protected:
   virtual void onPaint(PaintEvent& ev) override {
     Graphics* g = ev.graphics();
     AppRender& render = m_editor->renderEngine();
+    render.setRefLayersVisiblity(false);
     render.setProjection(render::Projection());
     render.disableOnionskin();
     render.setBgType(render::BgType::TRANSPARENT);

src/app/ui/editor/editor.cpp

@@ -546,6 +546,7 @@ void Editor::drawOneSpriteUnclippedRect(ui::Graphics* g, const gfx::Rect& sprite
     // Create a temporary RGB bitmap to draw all to it
     rendered.reset(Image::create(IMAGE_RGB, rc.w, rc.h, m_renderBuffer));
 
+    m_renderEngine.setRefLayersVisiblity(true);
     m_renderEngine.setProjection(m_proj);
     m_renderEngine.setupBackground(m_document, rendered->pixelFormat());
     m_renderEngine.disableOnionskin();

src/render/render.cpp

@@ -474,7 +474,8 @@ bool has_visible_reference_layers(const LayerGroup* group)
 } // anonymous namespace
 
 Render::Render()
-  : m_sprite(NULL)
+  : m_flags(0)
+  , m_sprite(nullptr)
   , m_currentLayer(NULL)
   , m_currentFrame(0)
   , m_extraType(ExtraType::NONE)
@@ -491,6 +492,14 @@ Render::Render()
 {
 }
 
+void Render::setRefLayersVisiblity(const bool visible)
+{
+  if (visible)
+    m_flags |= Flags::ShowRefLayers;
+  else
+    m_flags &= ~Flags::ShowRefLayers;
+}
+
 void Render::setProjection(const Projection& projection)
 {
   m_proj = projection;
@@ -882,6 +891,11 @@ void Render::renderLayer(
           (!render_transparent && !layer->isBackground()))
         break;
 
+      // Ignore reference layers
+      if (!(m_flags & Flags::ShowRefLayers) &&
+          layer->isReference())
+        break;
+
       const Cel* cel = layer->cel(frame);
       if (cel) {
         Palette* pal = m_sprite->palette(frame);

src/render/render.h

@@ -97,9 +97,15 @@ namespace render {
     const double sy);
 
   class Render {
+    enum Flags {
+      ShowRefLayers = 1,
+    };
+
   public:
     Render();
 
+    void setRefLayersVisiblity(const bool visible);
+
     // Viewport configuration
     void setProjection(const Projection& projection);
 
@@ -213,6 +219,7 @@ namespace render {
       const PixelFormat srcFormat,
       const Layer* layer);
 
+    int m_flags;
     const Sprite* m_sprite;
     const Layer* m_currentLayer;
     frame_t m_currentFrame;