public void singleStepParse() {
		String parsedLine = "";
		try {
			String line = reader.readLine();
			parsedLine = line;
			if (line != null) {
				parseLine(line);
				label.setText("Parsed line: \n" + line);
			} else {
				label.setText("Drawing Complete");
			}
		} catch (IOException e) {
			label.setText("IO Exception");
		} catch (ParseException e) {
			label.setText("Parse Exception: \n" + parsedLine);
		}
	}