does not link, we are close..

libs/mare/CMakeLists.txt

@@ -10,4 +10,4 @@ include_directories(../epaper/Fonts)
 
 # Generate the link library
 add_library(Mare ${DIR_Config_SRCS})
-target_link_libraries(Mare PUBLIC Config ePaper pico_stdlib hardware_spi)
+target_link_libraries(Mare PUBLIC Config ePaper Fonts pico_stdlib hardware_spi)

libs/mare/mare.cpp

@@ -5,8 +5,72 @@
 
 namespace Render {
     
-    Mare::Mare(){
+    Mare::Mare(dim_t size) :
+    _screenSize(size),
+    _screenBufferBackground(nullptr),
+    _screenBufferForeground(nullptr)
+    {
+        int rv;
+        _screenBufferBackground = (uint8_t*)malloc(sizeof(uint8_t)* (_screenSize.x * _screenSize.y));
+        _screenBufferForeground = (uint8_t*)malloc(sizeof(uint8_t)* (_screenSize.x * _screenSize.y));
+        clearBuffer(_screenBufferBackground, Color::White);
+        clearBuffer(_screenBufferBackground, Color::White);
 
+        // init display
+        DEV_Delay_ms(500); 
+        if((rv=DEV_Module_Init())!=0){
+            printf("Init Failed, %d",rv);
+            return;
+        }
+        EPD_2IN9_V2_Init();
+        EPD_2IN9_V2_Clear();
+        printf("Mare render engine created\n");
+    }
+
+    Mare::~Mare(){
+        for (auto &d :_drawables) {
+            d.reset();
+        }
+        for (auto &p : _pages){
+            p.reset();
+        }
+        free(_screenBufferBackground);
+        free(_screenBufferForeground);
+    }
+
+    template <class T, class ... Args>
+    T* Mare::addDrawable(Args&&... args){
+        static size_t lastDrawableIndex(0);
+        static_assert(std::is_base_of_v<Drawable, T>, "Scene::createDrawable<T>() error, type T is not inherited from Drawable.");
+        auto newD = std::make_shared<T>(lastDrawableIndex++, nullptr, this, std::forward<Args>(args)...);
+        _drawables.push_back(newD);
+        return newD.get();
+    }
+
+
+    void Mare::render() {
+        clearBuffer(_screenBufferBackground, Color::White);
+        for (auto &d: _drawables) {
+            if (d != nullptr){
+                d->render();
+            } else {
+                printf("Drawable is expired");
+            }
+        }
+        EPD_2IN9_V2_Display_Partial(_screenBufferBackground);
+    }
+
+    void Mare::setPixel(uint8_t* img, uint16_t x, uint16_t y, bool value){
+        assert(x <= _screenSize.x);
+        assert(y <= _screenSize.y);
+        img += (sizeof(uint8_t)*x*(_screenSize.y>>3)+ sizeof(uint8_t)*(y>>3));
+        if (value) *img &= ~0x01 << (y%8);
+        else *img |= 0x01 << y%8; 
+    }
+
+    void clearBuffer(uint8_t* buffer, Color col){
+        assert(buffer != nullptr);
+        std::memset(buffer, col == Color::White ? 0xff : 0x00, sizeof(buffer));
     }
 
 }

libs/mare/mare.h

@@ -1,16 +1,19 @@
 /*******************************************
  *     Most Awesome Renderer Ever
  *******************************************/
-#pragma once
+
+#include <stdio.h>
+#include <pico/stdlib.h>
  
 extern "C" {
     #include <DEV_Config.h>
-    #include <EPD_2in9b_V3.h>
+    #include <EPD_2in9_V2.h>
-    #include <fonts.h>
 }
 
 #include <vector>
 #include <string>
+#include <cstring>
+#include <memory>
 
 namespace Render{
 
@@ -36,56 +39,72 @@ namespace Render{
         Intersect
     };
 
+    enum class Color {
+        White,
+        Black
+    };
+
     class Page;
     class Drawable;
 
     typedef pos_t dim_t;
-    typedef std::vector<Page*> Pages;
+    typedef std::vector<std::shared_ptr<Page>> Pages;
-    typedef std::vector<Drawable*> Drawables;
+    typedef std::vector<std::shared_ptr<Drawable>> Drawables;
 
     class Mare {
-        Mare();
+        friend class Drawable;
-        virtual ~Mare();
+        friend class Page;
+
+        public:
+            Mare(dim_t size);
+            ~Mare();
         
         // getters, setters
         public:
-            void setSize(const uint16_t x, const uint16_t y);
+            void setSize(const dim_t size);
             const dim_t getSize();
             void setRotation(const ScreenRotation r);
             const ScreenRotation getRotation();
-            
-            const Pages& getPages();
-            const uint8_t getCurrentPage();
             void setCurrentPage(const uint8_t p);
-
+            const Page& getCurrentPage();
-            const Drawables& getDrawables();
             
         // drawables, pages
         public:
-            void addDrawable();
+        template <class T, class ... Args>
-            void removeDrawable(size_t id);
+            T* addDrawable(Args&&... args);
-            void addPage(uint8_t num);
+            void removeDrawable(const size_t id);
-            void removePage(uint8_t num);
+            void addPage();
+            void removePage(const uint8_t num);
+            const Drawables& getDrawables();
+            const Pages& getPages();
             
+        //render    
         private: 
+            void clearBuffer(uint8_t* buffer, Color col);
             void visitDrawables(Drawable* parent);
+
+        public:
             void render();
-            void setPixel(uint16_t x, uint16_t y, bool value);
+            void setPixel(uint8_t* img, uint16_t x, uint16_t y, bool value);
 
         // members
         private:
-            uint8_t* _screenBufferForeground;
-            uint8_t* _screenBufferBackgrund;
             dim_t _screenSize;  
             Pages _pages;   
-            Drawables _drawables;  
+            uint8_t* _screenBufferForeground;
+            uint8_t* _screenBufferBackground;
+            Drawables _drawables;  // background drawables for all the pages
             ScreenRotation _rotation;   
+
+        public:
+            uint8_t* bBuffer() {return _screenBufferBackground;}
+            uint8_t* fBuffer() {return _screenBufferForeground;}
     };
 
     class Drawable {
-        
+        public:
-        Drawable(const size_t id, const pos_t position, const Drawable* parent);
+            Drawable(const size_t id, Drawable* parent, Mare* engine);
-        virtual ~Drawable();
+            ~Drawable();
 
         public:
             virtual void render(); 
@@ -96,31 +115,38 @@ namespace Render{
             void setDirty();
             void setBlendMode(const BlendMode mode);
 
+            const pos_t getOrigin();
             const bbox2d_t getBBox();
             const BlendMode getBlendMode();
 
+            Mare* engine() { return _engine; };
+            Drawable* parent() { return _parent; };
+
         private:
+            Drawable* _parent;
+            Mare* _engine;
             bool _dirty;
             size_t _id;
             pos_t _origin;
             bbox2d_t _bbox;
             Drawables _children;
-            Drawable* _parent;
-
     };
 
     class DrawablePoint: public Drawable {
 
-        DrawablePoint();
+        DrawablePoint(const size_t id, Drawable* parent, Mare* engine, dim_t size);
         ~DrawablePoint();
 
         public:
+            void setSize(dim_t size);
+            const dim_t getSize();
 
         private:
             void render();
 
         // members
         private:
+            dim_t _size;
     };
 
     class DrawableLine: public Drawable {
@@ -129,12 +155,21 @@ namespace Render{
         ~DrawableLine();
 
         public:
+            void setThickness(uint16_t thickness);
+            const uint16_t getThickness();
+            void setRotation(float rotation);
+            const float getRotation();
+            void setLength(uint16_t length);
+            const uint16_t getLength();
 
         private:
-            void render() {};
+            void render(); // difficult business
 
         // members
         private:
+         uint16_t _thickness;
+         uint16_t _lenght;
+         float _rotation;
     };
 
     class DrawableRectangle: public Drawable {
@@ -151,6 +186,63 @@ namespace Render{
         private:
     };
 
+    class DrawableCircle: public Drawable {
+
+        DrawableCircle();
+        ~DrawableCircle();
+
+        public:
+
+        private:
+            void render() {};
+
+        // members
+        private:
+    };
+
+    class DrawableChar: public Drawable {
+
+        DrawableChar();
+        ~DrawableChar();
+
+        public:
+
+        private:
+            void render() {};
+
+        // members
+        private:
+    };
+    
+    class DrawableString: public Drawable {
+
+        DrawableString();
+        ~DrawableString();
+
+        public:
+
+        private:
+            void render() {};
+
+        // members
+        private:
+    };
+
+    class DrawableCustom: public Drawable {
+
+        DrawableCustom();
+        ~DrawableCustom();
+
+        public:
+
+        private:
+            void render() {};
+
+        // members
+        private:
+    };
+
+
     class Page {
 
         Page();
@@ -159,6 +251,7 @@ namespace Render{
         public:
 
         private:
-
+            Drawables _backDrawables;
+            Drawables _frontDrawables;
     };
 }

libs/mare/mare_drawables.cpp

@@ -2,12 +2,37 @@
 
 namespace Render {
 
-    Drawable::Drawable(const size_t id, const pos_t position, const Drawable* parent) {
+    Drawable::Drawable(const size_t id, Drawable* parent, Mare* engine):
-
+    _id(id),
+    _parent(parent),
+    _engine(engine)
+    {
+        printf("Created Drawable id: %d\n", _id);
     }
 
     //--------+--------+--------+--------+--------+--------+--------+--------+--------+--------//
     //Point
+    DrawablePoint::DrawablePoint(const size_t id, Drawable* parent, Mare* engine, dim_t size):
+        Drawable(id, parent,engine),
+        _size(size)
+    {
+
+    }
+
+    void DrawablePoint::render() {
+        uint8_t *buf;
+        if (parent() == nullptr)
+            buf = engine()->bBuffer();
+        else 
+            buf = engine()->fBuffer();
+
+        for (uint16_t xx(0); xx< _size.x; xx++){
+            for (uint16_t yy(0); yy < _size.y; yy++)
+            {
+                engine()->setPixel(buf,getOrigin().x+xx,getOrigin().y+yy,true);
+            }  
+        }
+    }
 
 
     //--------+--------+--------+--------+--------+--------+--------+--------+--------+--------//

src/CMakeLists.txt

@@ -18,11 +18,6 @@ pico_add_extra_outputs(emon)
 
 # Pull in our pico_stdlib which aggregates commonly used features
 target_link_libraries(emon 
-    hardware_spi
     pico_stdlib 
-    Config
+    Mare
-    ePaper 
-    GUI 
-    Fonts 
-    MyLibs
     )

src/main.cpp

@@ -2,80 +2,34 @@
 #include <pico/stdlib.h>
 
 // Ricrdarsi di inserire cosi'  tutte le lebrerie C altrimenti non LINKA, vaccamiseria
-extern "C" {
-    #include <EPD_2in9_V2.h>
-}
-
-#include <myclass.h>
 #include <mare.h>
 
-void setPixel(uint8_t* img, uint16_t x, uint16_t y, bool value){
-    img += (sizeof(uint8_t)*x*(EPD_2IN9_V2_WIDTH>>3)+ sizeof(uint8_t)*(y>>3));
-    if (value) *img &= ~0x01 << (y%8);
-    else *img |= 0x01 << y%8; 
-}
-
-void drawSquare(uint8_t* img, uint16_t x, uint16_t y, uint16_t dimX, uint16_t dimY, bool col){
-    for (auto xx(0); xx< dimX; xx++){
-        for (auto yy(0); yy < dimY; yy++)
-        {
-            setPixel(img,x+xx,y+yy,col);
-        }
-        
-    }
-}
-
 int main(){
     stdio_init_all();
     const uint LED_PIN = PICO_DEFAULT_LED_PIN;
     gpio_init(LED_PIN);
     gpio_set_dir(LED_PIN, GPIO_OUT);
     bool s=false;
-    uint32_t i=0;
+    uint i(0);
-    uint8_t img[EPD_2IN9_V2_HEIGHT/8*EPD_2IN9_V2_WIDTH];
+    Render::dim_t ssize;
+    ssize.x = EPD_2IN9_V2_WIDTH;
+    ssize.y = EPD_2IN9_V2_HEIGHT;
 
-    for (int x=0; x < EPD_2IN9_V2_HEIGHT/8*EPD_2IN9_V2_WIDTH; ++x){
+    auto viewer = Render::Mare(ssize);
-        img[x] = 0xff;
+
-    }
+    Render::dim_t ps;
+    ps.x=10;
+    ps.y=10;
+    auto point = viewer.addDrawable<Render::DrawablePoint>(ps);
+    point->setOrigin(ps);
+    viewer.render();
 
-    int rv;
-    DEV_Delay_ms(500); 
-    if((rv=DEV_Module_Init())!=0){
-        printf("Init Failed, %d",rv);
-        return -1;
-    }
-    EPD_2IN9_V2_Init();
-    EPD_2IN9_V2_Clear();
 
-    //clear delta memory
-    uint8_t delta[EPD_2IN9_V2_HEIGHT][EPD_2IN9_V2_WIDTH/8];
-    for(auto i(0); i < EPD_2IN9B_V3_HEIGHT; ++i){
-        for (auto j(0); j< EPD_2IN9B_V3_WIDTH/8; ++j){
-            delta[i][j]=0xff;
-        }
-    }
-    uint8_t dot(8);
-    bool col(false);
     while(true){
-        EPD_2IN9_V2_Display_Base((uint8_t*)img);
-        for(auto k(0); k<2; ++k){
-            col = col ? false : true;
-            for (auto x(0); x <= EPD_2IN9_V2_WIDTH-dot;x+=dot){
-                for(auto y(0); y <= EPD_2IN9_V2_HEIGHT-dot;y+=dot){
-                    drawSquare((uint8_t*)delta,y,EPD_2IN9_V2_WIDTH-x-dot,dot,dot,col); 
-                    EPD_2IN9_V2_Display_Partial((uint8_t*)delta);
-                }
-            }
-        }
-
-        for(auto i(0); i < EPD_2IN9B_V3_HEIGHT; ++i){
-            for (auto j(0); j< EPD_2IN9B_V3_WIDTH/8; ++j){
-                delta[i][j]=0xff;
-            }
-        }
         printf("[%u] Hello, world!\n",i++);
         gpio_put(LED_PIN,s);
         s = s ? false : true;
+
     }
 
     return 0;