UI improvements

src/egui_app.rs

@@ -241,8 +241,8 @@ impl epi::App for MathApp {
 
             Plot::new("plot")
                 .set_margin_fraction(Vec2::ZERO)
-                .view_aspect(1.0)
-                .data_aspect(1.0)
+                // .view_aspect(1.0)
+                // .data_aspect(1.0)
                 .include_y(0)
                 .show(ui, |plot_ui| {
                     let bounds = plot_ui.plot_bounds();

src/function.rs

@@ -23,26 +23,6 @@ pub struct Function {
     integral_num: usize,
 }
 
-impl Clone for Function {
-    fn clone(&self) -> Self {
-        let expr: Expr = self.func_str.parse().unwrap();
-        let func = expr.bind("x").unwrap();
-        Self {
-            function: Box::new(func),
-            func_str: self.func_str.clone(),
-            min_x: self.min_x,
-            max_x: self.max_x,
-            pixel_width: self.pixel_width,
-            back_cache: self.back_cache.clone(),
-            front_cache: self.front_cache.clone(),
-            integral: self.integral,
-            integral_min_x: self.integral_min_x,
-            integral_max_x: self.integral_max_x,
-            integral_num: self.integral_num,
-        }
-    }
-}
-
 impl Function {
     pub fn new(
         func_str: String, min_x: f64, max_x: f64, pixel_width: usize, integral: bool,

src/lib.rs

@@ -35,9 +35,16 @@ pub fn start(canvas_id: &str) -> Result<(), wasm_bindgen::JsValue> {
     init_tracing_wasm();
 
     // Used in order to hook into `panic!()` to log in the browser's console
-    log_helper("Initializing console_error_panic_hook...");
-    std::panic::set_hook(Box::new(console_error_panic_hook::hook));
-    log_helper("Initialized console_error_panic_hook!");
+    log_helper("Initializing panic hooks...");
+    std::panic::set_hook(Box::new(|panic_info| {
+        web_sys::window()
+            .and_then(|window| window.document())
+            .and_then(|document| document.body())
+            .and_then(|element| element.set_attribute("data-panicked", "true").ok());
+
+        console_error_panic_hook::hook(panic_info);
+    }));
+    log_helper("Initialized panic hooks!");
 
     log_helper("Finished initializing!");