1 files changed, 8 insertions, 0 deletions
diff --git a/include/cru/ui/style/Styler.hpp b/include/cru/ui/style/Styler.hpp
index 89731033..4f4b18ba 100644
--- a/include/cru/ui/style/Styler.hpp
+++ b/include/cru/ui/style/Styler.hpp
@@ -3,10 +3,14 @@
 #include "ApplyBorderStyleInfo.hpp"
 #include "cru/common/Base.hpp"
 
+#include <memory>
+
 namespace cru::ui::style {
 class Styler : public Object {
  public:
   virtual void Apply(controls::Control* control) const;
+
+  virtual std::unique_ptr<Styler> Clone() const = 0;
 };
 
 class BorderStyler : public Styler {
@@ -15,6 +19,10 @@ class BorderStyler : public Styler {
 
   void Apply(controls::Control* control) const override;
 
+  std::unique_ptr<Styler> Clone() const override {
+    return std::make_unique<BorderStyler>(style_);
+  }
+
  private:
   ApplyBorderStyleInfo style_;
 };