Clip text box

src/text_box.rs

@@ -643,6 +643,12 @@ where
         // Draw editor UI
         renderer.with_translation(Vector::new(view_position.x, view_position.y), |renderer| {
             renderer.with_transformation(Transformation::scale(1.0 / scale_factor), |renderer| {
+                renderer.with_layer(
+                    Rectangle::new(
+                        Point::new(0.0, 0.0),
+                        Size::new(image_w as f32, image_h as f32),
+                    ),
+                    |renderer| {
                         // Draw cached image (only has line numbers)
                         if let Some(ref handle) = *handle_opt {
                             let image_size = image::Renderer::measure_image(renderer, handle);
@@ -717,6 +723,8 @@ where
                                 log::error!("cosmic-text buffer not an Arc");
                             }
                         }
+                    },
+                )
             })
         });