Add pref to hide cursor when handwriting

src/handwriting/mod.rs

@@ -56,6 +56,7 @@ pub struct HandwritingStyle {
     pub bg_line_stroke: Stroke,
     pub bg_color: Color32,
     pub animate: bool,
+    pub hide_cursor: bool,
 }
 
 #[derive(serde::Deserialize, serde::Serialize)]
@@ -185,12 +186,11 @@ impl Handwriting {
         }
 
         let desired_size = Vec2::new(ui.available_width(), self.height);
-        let (response, painter) = ui.allocate_painter(desired_size, Sense::drag());
+        let (mut response, painter) = ui.allocate_painter(desired_size, Sense::drag());
 
-        let mut response = response
-            //.on_hover_cursor(CursorIcon::Crosshair)
-            //.on_hover_and_drag_cursor(CursorIcon::None)
-            ;
+        if style.hide_cursor {
+            response = response.on_hover_and_drag_cursor(egui::CursorIcon::None);
+        }
 
         let size = response.rect.size();
 
@@ -711,6 +711,7 @@ impl HandwritingStyle {
             bg_color,
             bg_line_stroke: Stroke::new(0.5, line_color),
             animate: true,
+            hide_cursor: false,
         }
     }
 }