src/view/pages/signal_reducing.rs

@@ -178,20 +178,40 @@ pub fn signal_reducing_page(wrapper: &Box) {
         .vexpand(true)
         .build();
 
-    calculate_button.connect_clicked(move |_| match parse_fields(all_inputs.clone()) {
+    calculate_button.connect_clicked(clone!(
-        Ok(results) => {
+        #[strong]
-            values.set(results);
+        model_for_events,
+        move |_| match parse_fields(all_inputs.clone()) {
+            Ok(results) => {
+                values.set(results);
 
-            model_for_events.items_changed(0, 0, 18);
+                let new_elem = &Frequency::new(values.get().frequency);
-            model_for_events.items_changed(18, 18, 0);
-        }
-        Err(error) => {
-            let error_kind: Option<&str> = get_error_message(error);
 
-            info_bar.set_text_label(error_kind);
+                let exist_elem_pos = model_for_events.find_with_equal_func(|elem| {
-            info_bar.show_infobar(5u64);
+                    elem.downcast_ref::<Frequency>().unwrap().frequency() == new_elem.frequency()
+                });
+
+                match exist_elem_pos {
+                    Some(_) => {
+                        info_bar.set_text_label(Some("Данная частота уже была задана."));
+                        info_bar.show_infobar(5u64);
+                    }
+                    None => {
+                        model_for_events.append(&Frequency::new(values.get().frequency));
+
+                        model_for_events.items_changed(0, 0, 1);
+                        model_for_events.items_changed(1, 1, 0);
+                    }
+                }
+            }
+            Err(error) => {
+                let error_kind: Option<&str> = get_error_message(error);
+
+                info_bar.set_text_label(error_kind);
+                info_bar.show_infobar(5u64);
+            }
         }
-    });
+    ));
 
     wrapper.append(&input_block);
     wrapper.append(&calculate_button);