lvgl demo init commit

Code/picocalc_lvgl_graphics_demo/main.c

@@ -0,0 +1,79 @@
+/**
+ * PicoCalc LVGL Graphics Demo
+ * 
+ * Demo App Uses LVGL to show demos on the PicoCalc.
+ * Implements basic keyboard input and display driver. 
+ * 
+ * Author: HsuahHanLai
+ * https://www.hsuanhanlai.com/
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "pico/stdlib.h"
+#include "hardware/gpio.h"
+
+
+#include "lv_conf.h"
+#include "lvgl/lvgl.h"
+#include "lv_port_indev_picocalc_kb.h"
+#include "lv_port_disp_picocalc_ILI9488.h"
+#include "lvgl/demos/lv_demos.h"
+
+
+#define ILI9488 1
+#define USE_DEFAULT_DEMO 1
+
+#define BYTE_PER_PIXEL (LV_COLOR_FORMAT_GET_SIZE(LV_COLOR_FORMAT_RGB565)) /*will be 2 for RGB565 */
+
+
+const unsigned int LEDPIN = 25;
+
+int main()
+{
+    // Initialize standard I/O
+    stdio_init_all();
+
+    // Initialize LED
+    gpio_init(LEDPIN);
+    gpio_set_dir(LEDPIN, GPIO_OUT);
+
+    // Initialize LVGL
+    lv_init();
+
+    // Initialize the custom display driver
+    lv_port_disp_init();
+
+    // Initialize the keyboard input device (implementation in lv_port_indev_kbd.c)
+    lv_port_indev_init();
+
+
+
+#ifdef USE_DEFAULT_DEMO
+    // Initialize and run LVGL demo
+    lv_demo_widgets(); // Replace with the correct demo function if needed
+#else
+    // Create a screen
+    lv_obj_t *screen = lv_obj_create(NULL);
+
+    // Create a text box
+    lv_obj_t *textbox = lv_textarea_create(screen);
+    lv_obj_set_size(textbox, 200, 50); // Set size of the text box
+    lv_obj_align(textbox, LV_ALIGN_CENTER, 0, 0); // Center the text box on the screen
+
+    // Enable keyboard input for the text box
+    lv_textarea_set_placeholder_text(textbox, "Enter text...");
+    lv_textarea_set_one_line(textbox, true); // Set to single-line mode
+
+    // Load the screen
+    lv_scr_load(screen);
+#endif
+
+    // Main loop
+    while (1)
+    {
+        lv_timer_handler();
+        lv_tick_inc(5); // Increment LVGL tick by 5 milliseconds
+        sleep_ms(1); // Sleep for 5 milliseconds}
+    }
+}