#include "../../lv_examples.h" #if LV_USE_CANVAS && LV_BUILD_EXAMPLES #define CANVAS_WIDTH 50 #define CANVAS_HEIGHT 50 /** * Draw an image to the canvas */ void lv_example_canvas_6(void) { /*Create a buffer for the canvas*/ static uint8_t cbuf[LV_CANVAS_BUF_SIZE_TRUE_COLOR(CANVAS_WIDTH, CANVAS_HEIGHT)]; /*Create a canvas and initialize its palette*/ lv_obj_t * canvas = lv_canvas_create(lv_screen_active()); lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_NATIVE); lv_canvas_fill_bg(canvas, lv_color_hex3(0xccc), LV_OPA_COVER); lv_obj_center(canvas); lv_layer_t layer; lv_canvas_init_layer(canvas, &layer); LV_IMAGE_DECLARE(img_star); lv_draw_image_dsc_t dsc; lv_draw_image_dsc_init(&dsc); dsc.src = &img_star; lv_area_t coords = {10, 10, 10 + img_star.header.w - 1, 10 + img_star.header.h - 1}; lv_draw_image(&layer, &dsc, &coords); lv_canvas_finish_layer(canvas, &layer); } #endif