package oving5.stringgrid;

public class StringGridIterator {
	private StringGrid grid;
	private boolean rowMajor;
	private int i = -1;

	public StringGridIterator(StringGrid grid, boolean rowMajor) {
		this.grid = grid;
		this.rowMajor = rowMajor;
	}

	public boolean hasNext() {
		return (i + 1) < (grid.getRowCount() * grid.getColumnCount());
	}



	public String next() {
		if (hasNext()) {
			i += 1;
			if (rowMajor) {
				return grid.getElement(i / grid.getColumnCount(), i % grid.getColumnCount());
			} else {
				return grid.getElement(i % grid.getRowCount(), i / grid.getRowCount());
			}
		}
		throw new IllegalArgumentException();
	}

	public void remove() {
		throw new UnsupportedOperationException();
	}

}