ba3d geo -> const/mutable

GUI/ba3d/model/object.cpp

@@ -98,7 +98,7 @@ void Object::releaseGeometry()
     m_geo.reset();
 }
 
-const Geometry& Object::geo()
+const Geometry& Object::geo() const
 {
     if (!m_geo)
         m_geo = geometryStore().getGeometry(gky);

GUI/ba3d/model/object.h

@@ -44,7 +44,7 @@ public:
     void setColor(QColor color) { m_color = color; }
 
     bool valid() const { return !isNull; }
-    const Geometry& geo();
+    const Geometry& geo() const;
     const QMatrix4x4& matrix() const { return m_matrix; }
 
 protected:
@@ -54,7 +54,7 @@ private:
     QColor m_color;
     Model* model;
     GeometricID::Key gky;
-    GeometryHandle m_geo;     // retrieved on demand
+    mutable GeometryHandle m_geo;     // retrieved on demand
     QMatrix4x4 m_matrix;
 
     void releaseGeometry(); // can be released whenever

GUI/ba3d/view/canvas.h

@@ -58,6 +58,7 @@ public:
 
     Camera* cam() { return camera; }
 
+//    void drawObject(const Object
 private:
     QRect viewport;
     float aspectRatio, colorBgR, colorBgG, colorBgB;