1 files changed, 4 insertions, 0 deletions
diff --git a/include/cru/platform/graphics/cairo/CairoPainter.h b/include/cru/platform/graphics/cairo/CairoPainter.h
index 3f6e6e24..95b09d2a 100644
--- a/include/cru/platform/graphics/cairo/CairoPainter.h
+++ b/include/cru/platform/graphics/cairo/CairoPainter.h
@@ -45,6 +45,10 @@ class CairoPainter : public CairoResource, public virtual IPainter {
   void EndDraw() override;
 
  private:
+  void CheckValidation();
+
+  bool valid_ = true;
+
   cairo_t* cairo_;
   bool auto_release_;
 };