themes: show active theme is listbox

radio/src/gui/colorlcd/listbox.cpp

@@ -115,6 +115,19 @@ int ListBase::getSelected() const
   return -1;
 }
 
+void ListBase::setActiveItem(int item)
+{
+  if (item != activeItem) {
+    activeItem = item;
+    invalidate();
+  }
+}
+
+int ListBase::getActiveItem() const
+{
+  return activeItem;
+}
+
 void ListBase::onPress(uint16_t row, uint16_t col)
 {
   if (row == LV_TABLE_CELL_NONE) return;
@@ -148,3 +161,21 @@ void ListBase::onCancel()
     TableField::onCancel();
   }
 }
+
+void ListBase::onDrawEnd(uint16_t row, uint16_t col, lv_obj_draw_part_dsc_t* dsc)
+{
+  if (row != activeItem) return;
+
+  lv_area_t coords;
+  lv_coord_t area_h = lv_area_get_height(dsc->draw_area);
+
+  lv_coord_t cell_right = lv_obj_get_style_pad_right(lvobj, LV_PART_ITEMS);
+  lv_coord_t font_h = getFontHeight(FONT(STD));
+
+  coords.x1 = dsc->draw_area->x2 - cell_right - font_h;
+  coords.x2 = coords.x1 + font_h;
+  coords.y1 = dsc->draw_area->y1 + (area_h - font_h) / 2;
+  coords.y2 = coords.y1 + font_h - 1;
+
+  lv_draw_label(dsc->draw_ctx, dsc->label_dsc, &coords, LV_SYMBOL_OK, nullptr);
+}

radio/src/gui/colorlcd/listbox.h

@@ -51,6 +51,9 @@ class ListBase : public TableField
   virtual void setSelected(int selected);
   int getSelected() const;
 
+  virtual void setActiveItem(int item);
+  int getActiveItem() const;
+  
   void setLongPressHandler(std::function<void()> handler)
   {
     longPressHandler = std::move(handler);
@@ -67,12 +70,15 @@ class ListBase : public TableField
 
  protected:
   static void event_cb(lv_event_t* e);
+  int activeItem = -1;
 
   void onPress(uint16_t row, uint16_t col) override;
   void onLongPressed();
 
   void onClicked() override;
   void onCancel() override;
+
+  void onDrawEnd(uint16_t row, uint16_t col, lv_obj_draw_part_dsc_t* dsc) override;
 };
 
 class ListBox : public ListBase

radio/src/gui/colorlcd/radio_theme.cpp

@@ -431,10 +431,12 @@ void ThemeSetupPage::displayThemeMenu(Window *window, ThemePersistance *tp)
   // you cant activate the active theme
   if (listBox->getSelected() != tp->getThemeIndex()) {
     menu->addLine(STR_ACTIVATE, [=]() {
-      tp->applyTheme(listBox->getSelected());
-      tp->setDefaultTheme(listBox->getSelected());
+      auto idx = listBox->getSelected();
+      tp->applyTheme(idx);
+      tp->setDefaultTheme(idx);
       nameText->setTextFlags(COLOR_THEME_PRIMARY1);
       authorText->setTextFlags(COLOR_THEME_PRIMARY1);
+      listBox->setActiveItem(idx);
     });
   }
 
@@ -508,6 +510,7 @@ void ThemeSetupPage::setupListbox(FormWindow *window, rect_t r, ThemePersistance
   listBox = new ListBox(window, r, tp->getNames());
   listBox->setAutoEdit(true);
   listBox->setSelected(currentTheme);
+  listBox->setActiveItem(tp->getThemeIndex());
   listBox->setTitle(STR_THEME + std::string("s")); // TODO: fix this!
   listBox->setLongPressHandler([=] () { displayThemeMenu(window, tp); });
   listBox->setPressHandler([=] () {