Until Lunch

src/main.c

@@ -1,13 +1,100 @@
 #include <stdio.h>
 #include <stdbool.h>
-#include "testlib.h"
+#include <SDL2/SDL.h>
+#include "lvgl.h"
+
 
 #ifndef MAIN_MESSAGE
     #define MAIN_MESSAGE "Hello from main!"
 #endif
 
-int main() {
-    printf("%s\n", MAIN_MESSAGE);
-    print_message();
+// Functie voor de scherminitialisatie
+void lvgl_init(SDL_Window **window, SDL_Renderer **renderer, int width, int height) {
+    // SDL2 initialisatie
+    if (SDL_Init(SDL_INIT_VIDEO) != 0) {
+        printf("SDL init failed: %s\n", SDL_GetError());
+        exit(1);
+    }
+    *window = SDL_CreateWindow("LVGL with SDL2", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, width, height, SDL_WINDOW_OPENGL);
+    if (*window == NULL) {
+        printf("Failed to create window: %s\n", SDL_GetError());
+        exit(1);
+    }
+    *renderer = SDL_CreateRenderer(*window, -1, SDL_RENDERER_ACCELERATED);
+    if (*renderer == NULL) {
+        printf("Failed to create renderer: %s\n", SDL_GetError());
+        exit(1);
+    }
+
+    // Initialisatie LVGL
+    lv_init();
+
+    // Koppelen van SDL2 als de display buffer
+    lv_disp_draw_buf_t draw_buf;
+    static lv_color_t buf1[LV_HOR_RES_MAX * 10];
+    lv_disp_draw_buf_init(&draw_buf, buf1, NULL, LV_HOR_RES_MAX * 10);
+
+    lv_disp_drv_t disp_drv;
+    lv_disp_drv_init(&disp_drv);
+    disp_drv.draw_buf = &draw_buf;
+    disp_drv.flush_cb = sdl_flush;
+    disp_drv.hor_res = width;
+    disp_drv.ver_res = height;
+    lv_disp_drv_register(&disp_drv);
+}
+
+// Functie voor het tekenen naar het SDL-scherm
+void sdl_flush(lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p) {
+    SDL_Renderer *renderer = (SDL_Renderer*) disp->user_data;
+    
+    // Zet het gebied waar we gaan tekenen
+    SDL_Rect rect = {area->x1, area->y1, area->x2 - area->x1 + 1, area->y2 - area->y1 + 1};
+    for (int y = 0; y <= rect.h; y++) {
+        for (int x = 0; x <= rect.w; x++) {
+            lv_color_t color = color_p[(y * rect.w) + x];
+            SDL_SetRenderDrawColor(renderer, color.ch.red, color.ch.green, color.ch.blue, 255);
+            SDL_RenderDrawPoint(renderer, rect.x + x, rect.y + y);
+        }
+    }
+    SDL_RenderPresent(renderer);
+
+    lv_disp_flush_ready(disp);
+}
+
+// Hoofdfunctie
+int main(void) {
+    SDL_Window *window;
+    SDL_Renderer *renderer;
+    int width = 800;
+    int height = 480;
+
+    lvgl_init(&window, &renderer, width, height);
+
+    // Maak een eenvoudige knop aan
+    lv_obj_t *btn = lv_btn_create(lv_scr_act(), NULL);
+    lv_obj_align(btn, NULL, LV_ALIGN_CENTER, 0, 0);
+    lv_obj_t *label = lv_label_create(btn, NULL);
+    lv_label_set_text(label, "Klik hier!");
+
+    // Event loop
+    SDL_Event e;
+    int quit = 0;
+    while (!quit) {
+        while (SDL_PollEvent(&e)) {
+            if (e.type == SDL_QUIT) {
+                quit = 1;
+            }
+        }
+
+        // LVGL taakverwerking
+        lv_task_handler();
+        SDL_Delay(5);
+    }
+
+    // Opruimen en afsluiten
+    SDL_DestroyRenderer(renderer);
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+
     return 0;
-}
+}