Merge pull request #2573 from leptun/MK3_filecheck_progress_bar

✨Progress bar for check_file()

Firmware/ultralcd.cpp

@@ -8781,22 +8781,35 @@ static void lcd_selftest_screen_step(int _row, int _col, int _state, const char
 
 static bool check_file(const char* filename) {
 	if (farm_mode) return true;
-	bool result = false;
-	uint32_t filesize;
 	card.openFile((char*)filename, true);
-	filesize = card.getFileSize();
+	bool result = false;
+	const uint32_t filesize = card.getFileSize();
+	uint32_t startPos = 0;
+	const uint16_t bytesToCheck = min(END_FILE_SECTION, filesize);
+	uint8_t blocksPrinted = 0;
 	if (filesize > END_FILE_SECTION) {
-		card.setIndex(filesize - END_FILE_SECTION);
-		
+		startPos = filesize - END_FILE_SECTION;
+		card.setIndex(startPos);
 	}
-	
-		while (!card.eof() && !result) {
+
+	lcd_clear();
+	lcd_puts_at_P(0, 1, _i("Checking file"));////c=20 r=1
+	lcd_set_cursor(0, 2);
+	while (!card.eof() && !result) {
+		for (; blocksPrinted < (((card.get_sdpos() - startPos) * LCD_WIDTH) / bytesToCheck); blocksPrinted++)
+			lcd_print('\xFF'); //simple progress bar
+
 		card.sdprinting = true;
 		get_command();
 		result = check_commands();
-		
 	}
+
+	for (; blocksPrinted < LCD_WIDTH; blocksPrinted++)
+		lcd_print('\xFF'); //simple progress bar
+	_delay(100); //for the user to see the end of the progress bar.
+
 	card.printingHasFinished();
+
 	strncpy_P(lcd_status_message, _T(WELCOME_MSG), LCD_WIDTH);
 	lcd_finishstatus();
 	return result;