spectrum cursor opt again (#2634)

* spectrum cursor opt

* fmt

* remove blink

* remove End event

* cleanup

firmware/application/ui/ui_spectrum.cpp

@@ -123,14 +123,12 @@ void FrequencyScale::paint(Painter& painter) {
     draw_filter_ranges(painter, r);
     draw_frequency_ticks(painter, r);
 
-    if (_blink) {
-        const Rect r_cursor{
-            118 + cursor_position, r.bottom() - filter_band_height,
-            5, filter_band_height};
-        painter.fill_rectangle(
-            r_cursor,
-            Color::red());
-    }
+    const Rect r_cursor{
+        118 + cursor_position, r.bottom() - filter_band_height,
+        5, filter_band_height};
+    painter.fill_rectangle(
+        r_cursor,
+        Color::red());
 }
 
 void FrequencyScale::clear() {
@@ -214,16 +212,10 @@ void FrequencyScale::draw_filter_ranges(Painter& painter, const Rect r) {
 }
 
 void FrequencyScale::on_focus() {
-    _blink = true;
-    on_tick_second();
-    signal_token_tick_second = rtc_time::signal_tick_second += [this]() {
-        this->on_tick_second();
-    };
+    set_dirty();
 }
 
 void FrequencyScale::on_blur() {
-    rtc_time::signal_tick_second -= signal_token_tick_second;
-    _blink = false;
     set_dirty();
 }
 
@@ -243,6 +235,7 @@ bool FrequencyScale::on_key(const KeyEvent key) {
         if (on_select) {
             on_select((cursor_position * spectrum_sampling_rate) / 240);
             cursor_position = 0;
+            set_dirty();
             return true;
         }
     }
@@ -259,11 +252,6 @@ bool FrequencyScale::on_touch(const TouchEvent touch) {
     return true;
 }
 
-void FrequencyScale::on_tick_second() {
-    set_dirty();
-    _blink = !_blink;
-}
-
 /* WaterfallWidget *********************************************************/
 // TODO: buffer and use "paint" instead of immediate drawing would help with
 // preventing flicker from drawing. Would use more RAM however.

firmware/application/ui/ui_spectrum.hpp

@@ -91,9 +91,6 @@ class FrequencyScale : public Widget {
    private:
     static constexpr int filter_band_height = 4;
 
-    void on_tick_second();
-
-    bool _blink{false};
     int32_t cursor_position{0};
     SignalToken signal_token_tick_second{};
     int spectrum_sampling_rate{0};