Naming and coding style convention, new linter tool. (#945)

* Makefile, Scripts: new linter
* About: remove ID from IC
* Firmware: remove double define for DIVC/DIVR
* Scripts: check folder names too. Docker: replace syntax check with make lint.
* Reformat Sources and Migrate to new file naming convention
* Docker: symlink clang-format-12 to clang-format
* Add coding style guide

applications/scened_app_example/scene/scened_app_scene_start.cpp

@@ -0,0 +1,47 @@
+#include "scened_app_scene_start.h"
+
+typedef enum {
+    SubmenuByteInput,
+} SubmenuIndex;
+
+void ScenedAppSceneStart::on_enter(ScenedApp* app, bool need_restore) {
+    auto submenu = app->view_controller.get<SubmenuVM>();
+    auto callback = cbc::obtain_connector(this, &ScenedAppSceneStart::submenu_callback);
+
+    submenu->add_item("Byte Input", SubmenuByteInput, callback, app);
+
+    if(need_restore) {
+        submenu->set_selected_item(submenu_item_selected);
+    }
+    app->view_controller.switch_to<SubmenuVM>();
+}
+
+bool ScenedAppSceneStart::on_event(ScenedApp* app, ScenedApp::Event* event) {
+    bool consumed = false;
+
+    if(event->type == ScenedApp::EventType::MenuSelected) {
+        submenu_item_selected = event->payload.menu_index;
+        switch(event->payload.menu_index) {
+        case SubmenuByteInput:
+            app->scene_controller.switch_to_next_scene(ScenedApp::SceneType::ByteInputScene);
+            break;
+        }
+        consumed = true;
+    }
+
+    return consumed;
+}
+
+void ScenedAppSceneStart::on_exit(ScenedApp* app) {
+    app->view_controller.get<SubmenuVM>()->clean();
+}
+
+void ScenedAppSceneStart::submenu_callback(void* context, uint32_t index) {
+    ScenedApp* app = static_cast<ScenedApp*>(context);
+    ScenedApp::Event event;
+
+    event.type = ScenedApp::EventType::MenuSelected;
+    event.payload.menu_index = index;
+
+    app->view_controller.send_event(&event);
+}