Merge pull request #17 from KaiNakamura/sleep-mode

Add sleep mode

src/Squidbox.cpp

@@ -18,6 +18,8 @@ Squidbox::Squidbox() {
   buttons[5] = new Button(PIN_BUTTON_5);
   buttons[6] = new Button(PIN_BUTTON_6);
   buttons[7] = new Button(PIN_BUTTON_7);
+
+  esp_sleep_enable_ext0_wakeup(static_cast<gpio_num_t>(PIN_BUTTON_0), 0);
 }
 
 void Squidbox::init() {
@@ -50,6 +52,12 @@ void Squidbox::switchTo(SceneType scene) {
   }
 }
 
+void Squidbox::sleep() {
+  screen->clear();
+  screen->update();
+  esp_deep_sleep_start();
+}
+
 Screen *Squidbox::getScreen() { return screen; }
 
 Joystick *Squidbox::getJoystick() { return joystick; }

src/Squidbox.h

@@ -37,6 +37,7 @@ class Squidbox {
   void init();
   void update();
   void switchTo(SceneType scene);
+  void sleep();
   Screen *getScreen();
   Joystick *getJoystick();
   Knob *getKnob();

src/components/button/Button.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "esp_sleep.h"
 #include <Arduino.h>
 
 class Button {

src/gui/menu-item/quit/QuitMenuItem.cpp

@@ -0,0 +1,11 @@
+#include "QuitMenuItem.h"
+
+QuitMenuItem::QuitMenuItem(Squidbox *squidbox)
+    : MenuItem("Quit"), squidbox(squidbox) {
+  setOnSelectCallback(onSelect, this);
+}
+
+void QuitMenuItem::onSelect(void *arg) {
+  QuitMenuItem *self = static_cast<QuitMenuItem *>(arg);
+  self->squidbox->sleep();
+}

src/gui/menu-item/quit/QuitMenuItem.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "Squidbox.h"
+#include "gui/menu-item/MenuItem.h"
+
+class QuitMenuItem : public MenuItem {
+private:
+  Squidbox *squidbox;
+  static void onSelect(void *arg);
+
+public:
+  QuitMenuItem(Squidbox *squidbox);
+};

src/scene/main/MainScene.cpp

@@ -10,13 +10,15 @@ MainScene::MainScene(Squidbox *squidbox) : Scene(squidbox, nullptr) {
       new SwitchSceneMenuItem("Notes", squidbox, NOTE_SCENE);
   MenuItem *drumMenuItem =
       new SwitchSceneMenuItem("Drums", squidbox, DRUM_SCENE);
+  MenuItem *quitMenuItem = new QuitMenuItem(squidbox);
 
-  MenuItem **menuItems = new MenuItem *[3];
+  MenuItem **menuItems = new MenuItem *[4];
   menuItems[0] = chordMenuItem;
   menuItems[1] = noteMenuItem;
   menuItems[2] = drumMenuItem;
+  menuItems[3] = quitMenuItem;
 
-  menu = new Menu("Squidbox", 3, menuItems);
+  menu = new Menu("Squidbox", 4, menuItems);
 }
 
 void MainScene::init() { Scene::init(); }

src/scene/main/MainScene.h

@@ -1,11 +1,11 @@
 #pragma once
 
+#include "gui/menu-item/quit/QuitMenuItem.h"
 #include "gui/menu-item/switch-scene/SwitchSceneMenuItem.h"
 #include "gui/menu/Menu.h"
 #include "scene/Scene.h"
 #include "util/Ascii.h"
 
-
 class MainScene : public Scene {
 public:
   MainScene(Squidbox *squidbox);