add base classes for screens and widgets

along with screen manager to allow place to manage multiple screens

Platformio/OmoteUI/core/ScreenManager.cpp

@@ -0,0 +1,16 @@
+#include "ScreenManager.hpp"
+
+
+using namespace UI::Screen;
+
+Manager Manager::mManager = Manager();
+
+Manager& Manager::getInstance(){
+    return mManager;
+}
+
+Manager::Manager(){}
+
+void Manager::pushScreen(std::unique_ptr<UI::Screen::Base> aPage){
+    pages.push(std::move(aPage));
+}

Platformio/OmoteUI/core/ScreenManager.hpp

@@ -0,0 +1,20 @@
+#include "ScreenBase.hpp"
+#include <stack>
+#include <memory>
+
+namespace UI::Screen{
+
+class Manager{
+public:
+    static Manager& getInstance();
+
+    void pushScreen(std::unique_ptr<UI::Screen::Base> aPage);
+
+private:
+    Manager();
+    static Manager mManager;
+
+    std::stack<std::unique_ptr<UI::Screen::Base>> pages;
+};
+
+}

Platformio/OmoteUI/core/interfaces/IHandleButtons.hpp

@@ -0,0 +1,3 @@
+class IHandleButtons{
+    virtual void OnKeyTap() = 0;
+};

Platformio/OmoteUI/core/screen/ScreenBase.hpp

@@ -0,0 +1,12 @@
+#include "lvgl.h"
+namespace UI::Screen{
+
+class Base {
+public:
+    Base();
+    
+private:
+    lv_obj_t *mScreen = lv_obj_create(NULL);
+};
+
+}

Platformio/OmoteUI/core/widget/WidgetBase.hpp

@@ -0,0 +1,18 @@
+#include "lvgl.h"
+namespace UI::Widget{
+
+class Base{
+public:
+    Base(lv_obj_t* aLvglSelf):
+    mLvglSelf(aLvglSelf)
+    {
+        mLvglSelf.user_data = this;
+    }
+    
+private:
+    lv_obj_t* mLvglSelf;
+    
+    uint16_t mId;
+};
+
+}

Platformio/platformio.ini

@@ -40,6 +40,9 @@ build_flags =
   ; ------------- Includes ------------------------------------
   -I OmoteUI
   -I OmoteUI/core
+  -I OmoteUI/core/interfaces
+  -I OmoteUI/core/screen
+  -I OmoteUI/core/widget
   -I OmoteUI/UIs
   -I OmoteUI/UIs/Basic
   -I HAL